hotspot/src/cpu/x86/vm/methodHandles_x86.cpp
author never
Tue, 14 Jun 2011 14:41:33 -0700
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permissions -rw-r--r--
7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters Reviewed-by: twisti, kvn, jrose
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/*
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 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/interpreterRuntime.hpp"
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#include "memory/allocation.inline.hpp"
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#include "prims/methodHandles.hpp"
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#define __ _masm->
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#ifdef PRODUCT
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#define BLOCK_COMMENT(str) /* nothing */
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#else
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#define BLOCK_COMMENT(str) __ block_comment(str)
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#endif
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#define BIND(label) bind(label); BLOCK_COMMENT(#label ":")
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// Workaround for C++ overloading nastiness on '0' for RegisterOrConstant.
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static RegisterOrConstant constant(int value) {
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  return RegisterOrConstant(value);
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}
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address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm,
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                                                address interpreted_entry) {
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  // Just before the actual machine code entry point, allocate space
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  // for a MethodHandleEntry::Data record, so that we can manage everything
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  // from one base pointer.
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  __ align(wordSize);
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  address target = __ pc() + sizeof(Data);
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  while (__ pc() < target) {
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    __ nop();
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    __ align(wordSize);
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  }
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  MethodHandleEntry* me = (MethodHandleEntry*) __ pc();
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  me->set_end_address(__ pc());         // set a temporary end_address
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  me->set_from_interpreted_entry(interpreted_entry);
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  me->set_type_checking_entry(NULL);
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  return (address) me;
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}
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MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm,
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                                                address start_addr) {
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  MethodHandleEntry* me = (MethodHandleEntry*) start_addr;
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  assert(me->end_address() == start_addr, "valid ME");
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  // Fill in the real end_address:
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  __ align(wordSize);
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  me->set_end_address(__ pc());
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  return me;
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}
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// stack walking support
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frame MethodHandles::ricochet_frame_sender(const frame& fr, RegisterMap *map) {
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  RicochetFrame* f = RicochetFrame::from_frame(fr);
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  if (map->update_map())
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    frame::update_map_with_saved_link(map, &f->_sender_link);
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  return frame(f->extended_sender_sp(), f->exact_sender_sp(), f->sender_link(), f->sender_pc());
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}
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void MethodHandles::ricochet_frame_oops_do(const frame& fr, OopClosure* blk, const RegisterMap* reg_map) {
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  RicochetFrame* f = RicochetFrame::from_frame(fr);
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  // pick up the argument type descriptor:
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  Thread* thread = Thread::current();
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  Handle cookie(thread, f->compute_saved_args_layout(true, true));
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  // process fixed part
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  blk->do_oop((oop*)f->saved_target_addr());
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  blk->do_oop((oop*)f->saved_args_layout_addr());
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  // process variable arguments:
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  if (cookie.is_null())  return;  // no arguments to describe
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  // the cookie is actually the invokeExact method for my target
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  // his argument signature is what I'm interested in
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  assert(cookie->is_method(), "");
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  methodHandle invoker(thread, methodOop(cookie()));
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  assert(invoker->name() == vmSymbols::invokeExact_name(), "must be this kind of method");
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  assert(!invoker->is_static(), "must have MH argument");
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  int slot_count = invoker->size_of_parameters();
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  assert(slot_count >= 1, "must include 'this'");
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  intptr_t* base = f->saved_args_base();
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  intptr_t* retval = NULL;
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  if (f->has_return_value_slot())
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    retval = f->return_value_slot_addr();
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  int slot_num = slot_count;
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  intptr_t* loc = &base[slot_num -= 1];
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  //blk->do_oop((oop*) loc);   // original target, which is irrelevant
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  int arg_num = 0;
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  for (SignatureStream ss(invoker->signature()); !ss.is_done(); ss.next()) {
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    if (ss.at_return_type())  continue;
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    BasicType ptype = ss.type();
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    if (ptype == T_ARRAY)  ptype = T_OBJECT; // fold all refs to T_OBJECT
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    assert(ptype >= T_BOOLEAN && ptype <= T_OBJECT, "not array or void");
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    loc = &base[slot_num -= type2size[ptype]];
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    bool is_oop = (ptype == T_OBJECT && loc != retval);
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    if (is_oop)  blk->do_oop((oop*)loc);
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    arg_num += 1;
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  }
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  assert(slot_num == 0, "must have processed all the arguments");
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}
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oop MethodHandles::RicochetFrame::compute_saved_args_layout(bool read_cache, bool write_cache) {
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  oop cookie = NULL;
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  if (read_cache) {
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    cookie = saved_args_layout();
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    if (cookie != NULL)  return cookie;
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  }
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  oop target = saved_target();
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  oop mtype  = java_lang_invoke_MethodHandle::type(target);
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  oop mtform = java_lang_invoke_MethodType::form(mtype);
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  cookie = java_lang_invoke_MethodTypeForm::vmlayout(mtform);
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  if (write_cache)  {
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    (*saved_args_layout_addr()) = cookie;
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  }
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  return cookie;
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}
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void MethodHandles::RicochetFrame::generate_ricochet_blob(MacroAssembler* _masm,
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                                                          // output params:
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                                                          int* bounce_offset,
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                                                          int* exception_offset,
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                                                          int* frame_size_in_words) {
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  (*frame_size_in_words) = RicochetFrame::frame_size_in_bytes() / wordSize;
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  address start = __ pc();
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#ifdef ASSERT
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  __ hlt(); __ hlt(); __ hlt();
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  // here's a hint of something special:
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  __ push(MAGIC_NUMBER_1);
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  __ push(MAGIC_NUMBER_2);
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#endif //ASSERT
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  __ hlt();  // not reached
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  // A return PC has just been popped from the stack.
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  // Return values are in registers.
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  // The ebp points into the RicochetFrame, which contains
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  // a cleanup continuation we must return to.
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  (*bounce_offset) = __ pc() - start;
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  BLOCK_COMMENT("ricochet_blob.bounce");
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  if (VerifyMethodHandles)  RicochetFrame::verify_clean(_masm);
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  trace_method_handle(_masm, "return/ricochet_blob.bounce");
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  __ jmp(frame_address(continuation_offset_in_bytes()));
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  __ hlt();
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  DEBUG_ONLY(__ push(MAGIC_NUMBER_2));
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  (*exception_offset) = __ pc() - start;
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  BLOCK_COMMENT("ricochet_blob.exception");
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  // compare this to Interpreter::rethrow_exception_entry, which is parallel code
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  // for example, see TemplateInterpreterGenerator::generate_throw_exception
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  // Live registers in:
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  //   rax: exception
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  //   rdx: return address/pc that threw exception (ignored, always equal to bounce addr)
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  __ verify_oop(rax);
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  // no need to empty_FPU_stack or reinit_heapbase, since caller frame will do the same if needed
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  // Take down the frame.
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  // Cf. InterpreterMacroAssembler::remove_activation.
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  leave_ricochet_frame(_masm, /*rcx_recv=*/ noreg,
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                       saved_last_sp_register(),
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                       /*sender_pc_reg=*/ rdx);
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  // In between activations - previous activation type unknown yet
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  // compute continuation point - the continuation point expects the
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  // following registers set up:
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  //
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  // rax: exception
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  // rdx: return address/pc that threw exception
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  // rsp: expression stack of caller
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  // rbp: ebp of caller
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  __ push(rax);                                  // save exception
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  __ push(rdx);                                  // save return address
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  Register thread_reg = LP64_ONLY(r15_thread) NOT_LP64(rdi);
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  NOT_LP64(__ get_thread(thread_reg));
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  __ call_VM_leaf(CAST_FROM_FN_PTR(address,
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                                   SharedRuntime::exception_handler_for_return_address),
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                  thread_reg, rdx);
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  __ mov(rbx, rax);                              // save exception handler
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  __ pop(rdx);                                   // restore return address
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  __ pop(rax);                                   // restore exception
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  __ jmp(rbx);                                   // jump to exception
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                                                 // handler of caller
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}
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void MethodHandles::RicochetFrame::enter_ricochet_frame(MacroAssembler* _masm,
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                                                        Register rcx_recv,
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                                                        Register rax_argv,
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                                                        address return_handler,
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                                                        Register rbx_temp) {
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  const Register saved_last_sp = saved_last_sp_register();
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  Address rcx_mh_vmtarget(    rcx_recv, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes() );
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  Address rcx_amh_conversion( rcx_recv, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes() );
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  // Push the RicochetFrame a word at a time.
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  // This creates something similar to an interpreter frame.
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  // Cf. TemplateInterpreterGenerator::generate_fixed_frame.
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  BLOCK_COMMENT("push RicochetFrame {");
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  DEBUG_ONLY(int rfo = (int) sizeof(RicochetFrame));
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  assert((rfo -= wordSize) == RicochetFrame::sender_pc_offset_in_bytes(), "");
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#define RF_FIELD(push_value, name)                                      \
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  { push_value;                                                         \
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    assert((rfo -= wordSize) == RicochetFrame::name##_offset_in_bytes(), ""); }
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  RF_FIELD(__ push(rbp),                   sender_link);
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  RF_FIELD(__ push(saved_last_sp),         exact_sender_sp);  // rsi/r13
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  RF_FIELD(__ pushptr(rcx_amh_conversion), conversion);
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  RF_FIELD(__ push(rax_argv),              saved_args_base);   // can be updated if args are shifted
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  RF_FIELD(__ push((int32_t) NULL_WORD),   saved_args_layout); // cache for GC layout cookie
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  if (UseCompressedOops) {
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    __ load_heap_oop(rbx_temp, rcx_mh_vmtarget);
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    RF_FIELD(__ push(rbx_temp),            saved_target);
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  } else {
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    RF_FIELD(__ pushptr(rcx_mh_vmtarget),  saved_target);
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  }
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  __ lea(rbx_temp, ExternalAddress(return_handler));
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  RF_FIELD(__ push(rbx_temp),              continuation);
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#undef RF_FIELD
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  assert(rfo == 0, "fully initialized the RicochetFrame");
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  // compute new frame pointer:
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  __ lea(rbp, Address(rsp, RicochetFrame::sender_link_offset_in_bytes()));
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  // Push guard word #1 in debug mode.
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  DEBUG_ONLY(__ push((int32_t) RicochetFrame::MAGIC_NUMBER_1));
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  // For debugging, leave behind an indication of which stub built this frame.
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  DEBUG_ONLY({ Label L; __ call(L, relocInfo::none); __ bind(L); });
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  BLOCK_COMMENT("} RicochetFrame");
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}
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void MethodHandles::RicochetFrame::leave_ricochet_frame(MacroAssembler* _masm,
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                                                        Register rcx_recv,
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                                                        Register new_sp_reg,
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                                                        Register sender_pc_reg) {
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  assert_different_registers(rcx_recv, new_sp_reg, sender_pc_reg);
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  const Register saved_last_sp = saved_last_sp_register();
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  // Take down the frame.
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  // Cf. InterpreterMacroAssembler::remove_activation.
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  BLOCK_COMMENT("end_ricochet_frame {");
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  // TO DO: If (exact_sender_sp - extended_sender_sp) > THRESH, compact the frame down.
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  // This will keep stack in bounds even with unlimited tailcalls, each with an adapter.
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  if (rcx_recv->is_valid())
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    __ movptr(rcx_recv,    RicochetFrame::frame_address(RicochetFrame::saved_target_offset_in_bytes()));
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  __ movptr(sender_pc_reg, RicochetFrame::frame_address(RicochetFrame::sender_pc_offset_in_bytes()));
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  __ movptr(saved_last_sp, RicochetFrame::frame_address(RicochetFrame::exact_sender_sp_offset_in_bytes()));
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  __ movptr(rbp,           RicochetFrame::frame_address(RicochetFrame::sender_link_offset_in_bytes()));
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  __ mov(rsp, new_sp_reg);
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  BLOCK_COMMENT("} end_ricochet_frame");
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}
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// Emit code to verify that RBP is pointing at a valid ricochet frame.
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#ifdef ASSERT
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enum {
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  ARG_LIMIT = 255, SLOP = 4,
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  // use this parameter for checking for garbage stack movements:
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  UNREASONABLE_STACK_MOVE = (ARG_LIMIT + SLOP)
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  // the slop defends against false alarms due to fencepost errors
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};
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void MethodHandles::RicochetFrame::verify_clean(MacroAssembler* _masm) {
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  // The stack should look like this:
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  //    ... keep1 | dest=42 | keep2 | RF | magic | handler | magic | recursive args |
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  // Check various invariants.
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  verify_offsets();
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   295
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  Register rdi_temp = rdi;
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  Register rcx_temp = rcx;
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  { __ push(rdi_temp); __ push(rcx_temp); }
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#define UNPUSH_TEMPS \
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  { __ pop(rcx_temp);  __ pop(rdi_temp); }
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  Address magic_number_1_addr  = RicochetFrame::frame_address(RicochetFrame::magic_number_1_offset_in_bytes());
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  Address magic_number_2_addr  = RicochetFrame::frame_address(RicochetFrame::magic_number_2_offset_in_bytes());
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  Address continuation_addr    = RicochetFrame::frame_address(RicochetFrame::continuation_offset_in_bytes());
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   305
  Address conversion_addr      = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes());
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   306
  Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes());
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diff changeset
   307
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diff changeset
   308
  Label L_bad, L_ok;
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diff changeset
   309
  BLOCK_COMMENT("verify_clean {");
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diff changeset
   310
  // Magic numbers must check out:
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diff changeset
   311
  __ cmpptr(magic_number_1_addr, (int32_t) MAGIC_NUMBER_1);
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   312
  __ jcc(Assembler::notEqual, L_bad);
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diff changeset
   313
  __ cmpptr(magic_number_2_addr, (int32_t) MAGIC_NUMBER_2);
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diff changeset
   314
  __ jcc(Assembler::notEqual, L_bad);
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parents: 9437
diff changeset
   315
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parents: 9437
diff changeset
   316
  // Arguments pointer must look reasonable:
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parents: 9437
diff changeset
   317
  __ movptr(rcx_temp, saved_args_base_addr);
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parents: 9437
diff changeset
   318
  __ cmpptr(rcx_temp, rbp);
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parents: 9437
diff changeset
   319
  __ jcc(Assembler::below, L_bad);
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diff changeset
   320
  __ subptr(rcx_temp, UNREASONABLE_STACK_MOVE * Interpreter::stackElementSize);
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parents: 9437
diff changeset
   321
  __ cmpptr(rcx_temp, rbp);
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parents: 9437
diff changeset
   322
  __ jcc(Assembler::above, L_bad);
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parents: 9437
diff changeset
   323
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   324
  load_conversion_dest_type(_masm, rdi_temp, conversion_addr);
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parents: 9437
diff changeset
   325
  __ cmpl(rdi_temp, T_VOID);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   326
  __ jcc(Assembler::equal, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   327
  __ movptr(rcx_temp, saved_args_base_addr);
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parents: 9437
diff changeset
   328
  load_conversion_vminfo(_masm, rdi_temp, conversion_addr);
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parents: 9437
diff changeset
   329
  __ cmpptr(Address(rcx_temp, rdi_temp, Interpreter::stackElementScale()),
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   330
            (int32_t) RETURN_VALUE_PLACEHOLDER);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   331
  __ jcc(Assembler::equal, L_ok);
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diff changeset
   332
  __ BIND(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   333
  UNPUSH_TEMPS;
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   334
  __ stop("damaged ricochet frame");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   335
  __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   336
  UNPUSH_TEMPS;
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   337
  BLOCK_COMMENT("} verify_clean");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   338
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   339
#undef UNPUSH_TEMPS
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   340
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   341
}
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   342
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   343
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   344
void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg) {
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   345
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   346
    verify_klass(_masm, klass_reg, SystemDictionaryHandles::Class_klass(),
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   347
                 "AMH argument is a Class");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   348
  __ load_heap_oop(klass_reg, Address(klass_reg, java_lang_Class::klass_offset_in_bytes()));
d6419e4395e3 6939861: JVM should handle more conversion operations
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diff changeset
   349
}
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   350
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parents: 9437
diff changeset
   351
void MethodHandles::load_conversion_vminfo(MacroAssembler* _masm, Register reg, Address conversion_field_addr) {
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   352
  int bits   = BitsPerByte;
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   353
  int offset = (CONV_VMINFO_SHIFT / bits);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   354
  int shift  = (CONV_VMINFO_SHIFT % bits);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   355
  __ load_unsigned_byte(reg, conversion_field_addr.plus_disp(offset));
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   356
  assert(CONV_VMINFO_MASK == right_n_bits(bits - shift), "else change type of previous load");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   357
  assert(shift == 0, "no shift needed");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   358
}
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   359
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parents: 9437
diff changeset
   360
void MethodHandles::load_conversion_dest_type(MacroAssembler* _masm, Register reg, Address conversion_field_addr) {
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   361
  int bits   = BitsPerByte;
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   362
  int offset = (CONV_DEST_TYPE_SHIFT / bits);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   363
  int shift  = (CONV_DEST_TYPE_SHIFT % bits);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   364
  __ load_unsigned_byte(reg, conversion_field_addr.plus_disp(offset));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   365
  assert(CONV_TYPE_MASK == right_n_bits(bits - shift), "else change type of previous load");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   366
  __ shrl(reg, shift);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   367
  DEBUG_ONLY(int conv_type_bits = (int) exact_log2(CONV_TYPE_MASK+1));
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   368
  assert((shift + conv_type_bits) == bits, "left justified in byte");
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   369
}
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   370
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parents: 9437
diff changeset
   371
void MethodHandles::load_stack_move(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   372
                                    Register rdi_stack_move,
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   373
                                    Register rcx_amh,
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   374
                                    bool might_be_negative) {
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
   375
  BLOCK_COMMENT("load_stack_move {");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   376
  Address rcx_amh_conversion(rcx_amh, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   377
  __ movl(rdi_stack_move, rcx_amh_conversion);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   378
  __ sarl(rdi_stack_move, CONV_STACK_MOVE_SHIFT);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   379
#ifdef _LP64
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   380
  if (might_be_negative) {
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   381
    // clean high bits of stack motion register (was loaded as an int)
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   382
    __ movslq(rdi_stack_move, rdi_stack_move);
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   383
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
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parents: 9437
diff changeset
   384
#endif //_LP64
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   385
  if (VerifyMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   386
    Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   387
    int32_t stack_move_limit = 0x4000;  // extra-large
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   388
    __ cmpptr(rdi_stack_move, stack_move_limit);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   389
    __ jcc(Assembler::greaterEqual, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   390
    __ cmpptr(rdi_stack_move, -stack_move_limit);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   391
    __ jcc(Assembler::greater, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   392
    __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   393
    __ stop("load_stack_move of garbage value");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   394
    __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   395
  }
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
   396
  BLOCK_COMMENT("} load_stack_move");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   397
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   398
9946
b3d5b50e2289 7045513: JSR 292 inlining causes crashes in methodHandleWalk.cpp
never
parents: 9638
diff changeset
   399
#ifdef ASSERT
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   400
void MethodHandles::RicochetFrame::verify_offsets() {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   401
  // Check compatibility of this struct with the more generally used offsets of class frame:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   402
  int ebp_off = sender_link_offset_in_bytes();  // offset from struct base to local rbp value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   403
  assert(ebp_off + wordSize*frame::interpreter_frame_method_offset      == saved_args_base_offset_in_bytes(), "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   404
  assert(ebp_off + wordSize*frame::interpreter_frame_last_sp_offset     == conversion_offset_in_bytes(), "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   405
  assert(ebp_off + wordSize*frame::interpreter_frame_sender_sp_offset   == exact_sender_sp_offset_in_bytes(), "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   406
  // These last two have to be exact:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   407
  assert(ebp_off + wordSize*frame::link_offset                          == sender_link_offset_in_bytes(), "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   408
  assert(ebp_off + wordSize*frame::return_addr_offset                   == sender_pc_offset_in_bytes(), "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   409
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   410
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   411
void MethodHandles::RicochetFrame::verify() const {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   412
  verify_offsets();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   413
  assert(magic_number_1() == MAGIC_NUMBER_1, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   414
  assert(magic_number_2() == MAGIC_NUMBER_2, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   415
  if (!Universe::heap()->is_gc_active()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   416
    if (saved_args_layout() != NULL) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   417
      assert(saved_args_layout()->is_method(), "must be valid oop");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   418
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   419
    if (saved_target() != NULL) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   420
      assert(java_lang_invoke_MethodHandle::is_instance(saved_target()), "checking frame value");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   421
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   422
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   423
  int conv_op = adapter_conversion_op(conversion());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   424
  assert(conv_op == java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS ||
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   425
         conv_op == java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS ||
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   426
         conv_op == java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   427
         "must be a sane conversion");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   428
  if (has_return_value_slot()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   429
    assert(*return_value_slot_addr() == RETURN_VALUE_PLACEHOLDER, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   430
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   431
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   432
#endif //PRODUCT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   433
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   434
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   435
void MethodHandles::verify_argslot(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   436
                                   Register argslot_reg,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   437
                                   const char* error_message) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   438
  // Verify that argslot lies within (rsp, rbp].
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   439
  Label L_ok, L_bad;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   440
  BLOCK_COMMENT("verify_argslot {");
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
   441
  __ cmpptr(argslot_reg, rbp);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
   442
  __ jccb(Assembler::above, L_bad);
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
   443
  __ cmpptr(rsp, argslot_reg);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
   444
  __ jccb(Assembler::below, L_ok);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   445
  __ bind(L_bad);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   446
  __ stop(error_message);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   447
  __ BIND(L_ok);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   448
  BLOCK_COMMENT("} verify_argslot");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   449
}
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   450
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   451
void MethodHandles::verify_argslots(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   452
                                    RegisterOrConstant arg_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   453
                                    Register arg_slot_base_reg,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   454
                                    bool negate_argslots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   455
                                    const char* error_message) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   456
  // Verify that [argslot..argslot+size) lies within (rsp, rbp).
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   457
  Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   458
  Register rdi_temp = rdi;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   459
  BLOCK_COMMENT("verify_argslots {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   460
  __ push(rdi_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   461
  if (negate_argslots) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   462
    if (arg_slots.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   463
      arg_slots = -1 * arg_slots.as_constant();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   464
    } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   465
      __ movptr(rdi_temp, arg_slots);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   466
      __ negptr(rdi_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   467
      arg_slots = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   468
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   469
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   470
  __ lea(rdi_temp, Address(arg_slot_base_reg, arg_slots, Interpreter::stackElementScale()));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   471
  __ cmpptr(rdi_temp, rbp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   472
  __ pop(rdi_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   473
  __ jcc(Assembler::above, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   474
  __ cmpptr(rsp, arg_slot_base_reg);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   475
  __ jcc(Assembler::below, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   476
  __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   477
  __ stop(error_message);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   478
  __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   479
  BLOCK_COMMENT("} verify_argslots");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   480
}
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   481
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   482
// Make sure that arg_slots has the same sign as the given direction.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   483
// If (and only if) arg_slots is a assembly-time constant, also allow it to be zero.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   484
void MethodHandles::verify_stack_move(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   485
                                      RegisterOrConstant arg_slots, int direction) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   486
  bool allow_zero = arg_slots.is_constant();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   487
  if (direction == 0) { direction = +1; allow_zero = true; }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   488
  assert(stack_move_unit() == -1, "else add extra checks here");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   489
  if (arg_slots.is_register()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   490
    Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   491
    BLOCK_COMMENT("verify_stack_move {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   492
    // testl(arg_slots.as_register(), -stack_move_unit() - 1);  // no need
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   493
    // jcc(Assembler::notZero, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   494
    __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   495
    if (direction > 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   496
      __ jcc(allow_zero ? Assembler::less : Assembler::lessEqual, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   497
      __ cmpptr(arg_slots.as_register(), (int32_t) UNREASONABLE_STACK_MOVE);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   498
      __ jcc(Assembler::less, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   499
    } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   500
      __ jcc(allow_zero ? Assembler::greater : Assembler::greaterEqual, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   501
      __ cmpptr(arg_slots.as_register(), (int32_t) -UNREASONABLE_STACK_MOVE);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   502
      __ jcc(Assembler::greater, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   503
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   504
    __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   505
    if (direction > 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   506
      __ stop("assert arg_slots > 0");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   507
    else
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   508
      __ stop("assert arg_slots < 0");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   509
    __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   510
    BLOCK_COMMENT("} verify_stack_move");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   511
  } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   512
    intptr_t size = arg_slots.as_constant();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   513
    if (direction < 0)  size = -size;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   514
    assert(size >= 0, "correct direction of constant move");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   515
    assert(size < UNREASONABLE_STACK_MOVE, "reasonable size of constant move");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   516
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   517
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   518
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   519
void MethodHandles::verify_klass(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   520
                                 Register obj, KlassHandle klass,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   521
                                 const char* error_message) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   522
  oop* klass_addr = klass.raw_value();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   523
  assert(klass_addr >= SystemDictionaryHandles::Object_klass().raw_value() &&
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   524
         klass_addr <= SystemDictionaryHandles::Long_klass().raw_value(),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   525
         "must be one of the SystemDictionaryHandles");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   526
  Register temp = rdi;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   527
  Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   528
  BLOCK_COMMENT("verify_klass {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   529
  __ verify_oop(obj);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   530
  __ testptr(obj, obj);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   531
  __ jcc(Assembler::zero, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   532
  __ push(temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   533
  __ load_klass(temp, obj);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   534
  __ cmpptr(temp, ExternalAddress((address) klass_addr));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   535
  __ jcc(Assembler::equal, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   536
  intptr_t super_check_offset = klass->super_check_offset();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   537
  __ movptr(temp, Address(temp, super_check_offset));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   538
  __ cmpptr(temp, ExternalAddress((address) klass_addr));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   539
  __ jcc(Assembler::equal, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   540
  __ pop(temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   541
  __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   542
  __ stop(error_message);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   543
  __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   544
  __ pop(temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   545
  BLOCK_COMMENT("} verify_klass");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   546
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   547
#endif //ASSERT
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   548
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   549
// Code generation
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   550
address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   551
  // rbx: methodOop
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   552
  // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots])
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   553
  // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   554
  // rdx, rdi: garbage temp, blown away
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   555
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   556
  Register rbx_method = rbx;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   557
  Register rcx_recv   = rcx;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   558
  Register rax_mtype  = rax;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   559
  Register rdx_temp   = rdx;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   560
  Register rdi_temp   = rdi;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   561
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   562
  // emit WrongMethodType path first, to enable jccb back-branch from main path
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   563
  Label wrong_method_type;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   564
  __ bind(wrong_method_type);
9978
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   565
  Label invoke_generic_slow_path, invoke_exact_error_path;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   566
  assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");;
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   567
  __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeExact);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   568
  __ jcc(Assembler::notEqual, invoke_generic_slow_path);
9978
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   569
  __ jmp(invoke_exact_error_path);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   570
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   571
  // here's where control starts out:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   572
  __ align(CodeEntryAlignment);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   573
  address entry_point = __ pc();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   574
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   575
  // fetch the MethodType from the method handle into rax (the 'check' register)
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   576
  // FIXME: Interpreter should transmit pre-popped stack pointer, to locate base of arg list.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   577
  // This would simplify several touchy bits of code.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   578
  // See 6984712: JSR 292 method handle calls need a clean argument base pointer
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   579
  {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   580
    Register tem = rbx_method;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   581
    for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   582
      __ movptr(rax_mtype, Address(tem, *pchase));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   583
      tem = rax_mtype;          // in case there is another indirection
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   584
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   585
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   586
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   587
  // given the MethodType, find out where the MH argument is buried
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
   588
  __ load_heap_oop(rdx_temp, Address(rax_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, rdi_temp)));
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   589
  Register rdx_vmslots = rdx_temp;
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
   590
  __ movl(rdx_vmslots, Address(rdx_temp, __ delayed_value(java_lang_invoke_MethodTypeForm::vmslots_offset_in_bytes, rdi_temp)));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   591
  Address mh_receiver_slot_addr = __ argument_address(rdx_vmslots);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   592
  __ movptr(rcx_recv, mh_receiver_slot_addr);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   593
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   594
  trace_method_handle(_masm, "invokeExact");
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   595
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   596
  __ check_method_handle_type(rax_mtype, rcx_recv, rdi_temp, wrong_method_type);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   597
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   598
  // Nobody uses the MH receiver slot after this.  Make sure.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   599
  DEBUG_ONLY(__ movptr(mh_receiver_slot_addr, (int32_t)0x999999));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   600
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   601
  __ jump_to_method_handle_entry(rcx_recv, rdi_temp);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   602
9978
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   603
  // error path for invokeExact (only)
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   604
  __ bind(invoke_exact_error_path);
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   605
  // jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry()));
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   606
  Register rdx_last_Java_sp = rdx_temp;
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   607
  __ lea(rdx_last_Java_sp, __ argument_address(constant(0)));
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   608
  __ super_call_VM(noreg,
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   609
                   rdx_last_Java_sp,
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   610
                   CAST_FROM_FN_PTR(address,
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   611
                                    InterpreterRuntime::throw_WrongMethodTypeException),
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   612
                   // pass required type, then failing mh object
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   613
                   rax_mtype, rcx_recv);
80c391c46474 7047697: MethodHandle.invokeExact call for wrong method causes VM failure if run with -Xcomp
jrose
parents: 9976
diff changeset
   614
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   615
  // for invokeGeneric (only), apply argument and result conversions on the fly
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   616
  __ bind(invoke_generic_slow_path);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   617
#ifdef ASSERT
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   618
  if (VerifyMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   619
    Label L;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   620
    __ cmpb(Address(rbx_method, methodOopDesc::intrinsic_id_offset_in_bytes()), (int) vmIntrinsics::_invokeGeneric);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   621
    __ jcc(Assembler::equal, L);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   622
    __ stop("bad methodOop::intrinsic_id");
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   623
    __ bind(L);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   624
  }
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   625
#endif //ASSERT
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   626
  Register rbx_temp = rbx_method;  // don't need it now
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   627
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   628
  // make room on the stack for another pointer:
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   629
  Register rcx_argslot = rcx_recv;
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   630
  __ lea(rcx_argslot, __ argument_address(rdx_vmslots, 1));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   631
  insert_arg_slots(_masm, 2 * stack_move_unit(),
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   632
                   rcx_argslot, rbx_temp, rdx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   633
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   634
  // load up an adapter from the calling type (Java weaves this)
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   635
  Register rdx_adapter = rdx_temp;
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   636
  __ load_heap_oop(rdx_temp,    Address(rax_mtype, __ delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes,               rdi_temp)));
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   637
  __ load_heap_oop(rdx_adapter, Address(rdx_temp,  __ delayed_value(java_lang_invoke_MethodTypeForm::genericInvoker_offset_in_bytes, rdi_temp)));
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   638
  __ verify_oop(rdx_adapter);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   639
  __ movptr(Address(rcx_argslot, 1 * Interpreter::stackElementSize), rdx_adapter);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   640
  // As a trusted first argument, pass the type being called, so the adapter knows
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   641
  // the actual types of the arguments and return values.
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   642
  // (Generic invokers are shared among form-families of method-type.)
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   643
  __ movptr(Address(rcx_argslot, 0 * Interpreter::stackElementSize), rax_mtype);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   644
  // FIXME: assert that rdx_adapter is of the right method-type.
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   645
  __ mov(rcx, rdx_adapter);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   646
  trace_method_handle(_masm, "invokeGeneric");
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   647
  __ jump_to_method_handle_entry(rcx, rdi_temp);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   648
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   649
  return entry_point;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   650
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   651
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   652
// Helper to insert argument slots into the stack.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   653
// arg_slots must be a multiple of stack_move_unit() and < 0
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   654
// rax_argslot is decremented to point to the new (shifted) location of the argslot
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   655
// But, rdx_temp ends up holding the original value of rax_argslot.
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   656
void MethodHandles::insert_arg_slots(MacroAssembler* _masm,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   657
                                     RegisterOrConstant arg_slots,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   658
                                     Register rax_argslot,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   659
                                     Register rbx_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   660
  // allow constant zero
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   661
  if (arg_slots.is_constant() && arg_slots.as_constant() == 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   662
    return;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   663
  assert_different_registers(rax_argslot, rbx_temp, rdx_temp,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   664
                             (!arg_slots.is_register() ? rsp : arg_slots.as_register()));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   665
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   666
    verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   667
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   668
    verify_stack_move(_masm, arg_slots, -1);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   669
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   670
  // Make space on the stack for the inserted argument(s).
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   671
  // Then pull down everything shallower than rax_argslot.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   672
  // The stacked return address gets pulled down with everything else.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   673
  // That is, copy [rsp, argslot) downward by -size words.  In pseudo-code:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   674
  //   rsp -= size;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   675
  //   for (rdx = rsp + size; rdx < argslot; rdx++)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   676
  //     rdx[-size] = rdx[0]
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   677
  //   argslot -= size;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   678
  BLOCK_COMMENT("insert_arg_slots {");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   679
  __ mov(rdx_temp, rsp);                        // source pointer for copy
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   680
  __ lea(rsp, Address(rsp, arg_slots, Interpreter::stackElementScale()));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   681
  {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   682
    Label loop;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   683
    __ BIND(loop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   684
    // pull one word down each time through the loop
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   685
    __ movptr(rbx_temp, Address(rdx_temp, 0));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   686
    __ movptr(Address(rdx_temp, arg_slots, Interpreter::stackElementScale()), rbx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   687
    __ addptr(rdx_temp, wordSize);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   688
    __ cmpptr(rdx_temp, rax_argslot);
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   689
    __ jcc(Assembler::below, loop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   690
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   691
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   692
  // Now move the argslot down, to point to the opened-up space.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   693
  __ lea(rax_argslot, Address(rax_argslot, arg_slots, Interpreter::stackElementScale()));
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   694
  BLOCK_COMMENT("} insert_arg_slots");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   695
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   696
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   697
// Helper to remove argument slots from the stack.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   698
// arg_slots must be a multiple of stack_move_unit() and > 0
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   699
void MethodHandles::remove_arg_slots(MacroAssembler* _masm,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   700
                                     RegisterOrConstant arg_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   701
                                     Register rax_argslot,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   702
                                     Register rbx_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   703
  // allow constant zero
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   704
  if (arg_slots.is_constant() && arg_slots.as_constant() == 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   705
    return;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   706
  assert_different_registers(rax_argslot, rbx_temp, rdx_temp,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   707
                             (!arg_slots.is_register() ? rsp : arg_slots.as_register()));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   708
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   709
    verify_argslots(_masm, arg_slots, rax_argslot, false,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   710
                    "deleted argument(s) must fall within current frame");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   711
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   712
    verify_stack_move(_masm, arg_slots, +1);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   713
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   714
  BLOCK_COMMENT("remove_arg_slots {");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   715
  // Pull up everything shallower than rax_argslot.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   716
  // Then remove the excess space on the stack.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   717
  // The stacked return address gets pulled up with everything else.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   718
  // That is, copy [rsp, argslot) upward by size words.  In pseudo-code:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   719
  //   for (rdx = argslot-1; rdx >= rsp; --rdx)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   720
  //     rdx[size] = rdx[0]
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   721
  //   argslot += size;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   722
  //   rsp += size;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   723
  __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   724
  {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   725
    Label loop;
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   726
    __ BIND(loop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   727
    // pull one word up each time through the loop
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   728
    __ movptr(rbx_temp, Address(rdx_temp, 0));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   729
    __ movptr(Address(rdx_temp, arg_slots, Interpreter::stackElementScale()), rbx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   730
    __ addptr(rdx_temp, -wordSize);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   731
    __ cmpptr(rdx_temp, rsp);
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   732
    __ jcc(Assembler::aboveEqual, loop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   733
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   734
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   735
  // Now move the argslot up, to point to the just-copied block.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   736
  __ lea(rsp, Address(rsp, arg_slots, Interpreter::stackElementScale()));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   737
  // And adjust the argslot address to point at the deletion point.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   738
  __ lea(rax_argslot, Address(rax_argslot, arg_slots, Interpreter::stackElementScale()));
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   739
  BLOCK_COMMENT("} remove_arg_slots");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   740
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   741
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   742
// Helper to copy argument slots to the top of the stack.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   743
// The sequence starts with rax_argslot and is counted by slot_count
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   744
// slot_count must be a multiple of stack_move_unit() and >= 0
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   745
// This function blows the temps but does not change rax_argslot.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   746
void MethodHandles::push_arg_slots(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   747
                                   Register rax_argslot,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   748
                                   RegisterOrConstant slot_count,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   749
                                   int skip_words_count,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   750
                                   Register rbx_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   751
  assert_different_registers(rax_argslot, rbx_temp, rdx_temp,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   752
                             (!slot_count.is_register() ? rbp : slot_count.as_register()),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   753
                             rsp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   754
  assert(Interpreter::stackElementSize == wordSize, "else change this code");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   755
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   756
  if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   757
    verify_stack_move(_masm, slot_count, 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   758
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   759
  // allow constant zero
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   760
  if (slot_count.is_constant() && slot_count.as_constant() == 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   761
    return;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   762
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   763
  BLOCK_COMMENT("push_arg_slots {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   764
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   765
  Register rbx_top = rbx_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   766
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   767
  // There is at most 1 word to carry down with the TOS.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   768
  switch (skip_words_count) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   769
  case 1: __ pop(rdx_temp); break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   770
  case 0:                   break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   771
  default: ShouldNotReachHere();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   772
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   773
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   774
  if (slot_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   775
    for (int i = slot_count.as_constant() - 1; i >= 0; i--) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   776
      __ pushptr(Address(rax_argslot, i * wordSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   777
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   778
  } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   779
    Label L_plural, L_loop, L_break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   780
    // Emit code to dynamically check for the common cases, zero and one slot.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   781
    __ cmpl(slot_count.as_register(), (int32_t) 1);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   782
    __ jccb(Assembler::greater, L_plural);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   783
    __ jccb(Assembler::less, L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   784
    __ pushptr(Address(rax_argslot, 0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   785
    __ jmpb(L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   786
    __ BIND(L_plural);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   787
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   788
    // Loop for 2 or more:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   789
    //   rbx = &rax[slot_count]
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   790
    //   while (rbx > rax)  *(--rsp) = *(--rbx)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   791
    __ lea(rbx_top, Address(rax_argslot, slot_count, Address::times_ptr));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   792
    __ BIND(L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   793
    __ subptr(rbx_top, wordSize);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   794
    __ pushptr(Address(rbx_top, 0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   795
    __ cmpptr(rbx_top, rax_argslot);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   796
    __ jcc(Assembler::above, L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   797
    __ bind(L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   798
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   799
  switch (skip_words_count) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   800
  case 1: __ push(rdx_temp); break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   801
  case 0:                    break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   802
  default: ShouldNotReachHere();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   803
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   804
  BLOCK_COMMENT("} push_arg_slots");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   805
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   806
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   807
// in-place movement; no change to rsp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   808
// blows rax_temp, rdx_temp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   809
void MethodHandles::move_arg_slots_up(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   810
                                      Register rbx_bottom,  // invariant
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   811
                                      Address  top_addr,     // can use rax_temp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   812
                                      RegisterOrConstant positive_distance_in_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   813
                                      Register rax_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   814
  BLOCK_COMMENT("move_arg_slots_up {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   815
  assert_different_registers(rbx_bottom,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   816
                             rax_temp, rdx_temp,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   817
                             positive_distance_in_slots.register_or_noreg());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   818
  Label L_loop, L_break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   819
  Register rax_top = rax_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   820
  if (!top_addr.is_same_address(Address(rax_top, 0)))
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   821
    __ lea(rax_top, top_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   822
  // Detect empty (or broken) loop:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   823
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   824
  if (VerifyMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   825
    // Verify that &bottom < &top (non-empty interval)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   826
    Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   827
    if (positive_distance_in_slots.is_register()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   828
      __ cmpptr(positive_distance_in_slots.as_register(), (int32_t) 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   829
      __ jcc(Assembler::lessEqual, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   830
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   831
    __ cmpptr(rbx_bottom, rax_top);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   832
    __ jcc(Assembler::below, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   833
    __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   834
    __ stop("valid bounds (copy up)");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   835
    __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   836
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   837
#endif
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   838
  __ cmpptr(rbx_bottom, rax_top);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   839
  __ jccb(Assembler::aboveEqual, L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   840
  // work rax down to rbx, copying contiguous data upwards
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   841
  // In pseudo-code:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   842
  //   [rbx, rax) = &[bottom, top)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   843
  //   while (--rax >= rbx) *(rax + distance) = *(rax + 0), rax--;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   844
  __ BIND(L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   845
  __ subptr(rax_top, wordSize);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   846
  __ movptr(rdx_temp, Address(rax_top, 0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   847
  __ movptr(          Address(rax_top, positive_distance_in_slots, Address::times_ptr), rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   848
  __ cmpptr(rax_top, rbx_bottom);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   849
  __ jcc(Assembler::above, L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   850
  assert(Interpreter::stackElementSize == wordSize, "else change loop");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   851
  __ bind(L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   852
  BLOCK_COMMENT("} move_arg_slots_up");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   853
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   854
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   855
// in-place movement; no change to rsp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   856
// blows rax_temp, rdx_temp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   857
void MethodHandles::move_arg_slots_down(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   858
                                        Address  bottom_addr,  // can use rax_temp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   859
                                        Register rbx_top,      // invariant
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   860
                                        RegisterOrConstant negative_distance_in_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   861
                                        Register rax_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   862
  BLOCK_COMMENT("move_arg_slots_down {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   863
  assert_different_registers(rbx_top,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   864
                             negative_distance_in_slots.register_or_noreg(),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   865
                             rax_temp, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   866
  Label L_loop, L_break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   867
  Register rax_bottom = rax_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   868
  if (!bottom_addr.is_same_address(Address(rax_bottom, 0)))
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   869
    __ lea(rax_bottom, bottom_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   870
  // Detect empty (or broken) loop:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   871
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   872
  assert(!negative_distance_in_slots.is_constant() || negative_distance_in_slots.as_constant() < 0, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   873
  if (VerifyMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   874
    // Verify that &bottom < &top (non-empty interval)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   875
    Label L_ok, L_bad;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   876
    if (negative_distance_in_slots.is_register()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   877
      __ cmpptr(negative_distance_in_slots.as_register(), (int32_t) 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   878
      __ jcc(Assembler::greaterEqual, L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   879
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   880
    __ cmpptr(rax_bottom, rbx_top);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   881
    __ jcc(Assembler::below, L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   882
    __ bind(L_bad);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   883
    __ stop("valid bounds (copy down)");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   884
    __ BIND(L_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   885
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   886
#endif
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   887
  __ cmpptr(rax_bottom, rbx_top);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   888
  __ jccb(Assembler::aboveEqual, L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   889
  // work rax up to rbx, copying contiguous data downwards
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   890
  // In pseudo-code:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   891
  //   [rax, rbx) = &[bottom, top)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   892
  //   while (rax < rbx) *(rax - distance) = *(rax + 0), rax++;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   893
  __ BIND(L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   894
  __ movptr(rdx_temp, Address(rax_bottom, 0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   895
  __ movptr(          Address(rax_bottom, negative_distance_in_slots, Address::times_ptr), rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   896
  __ addptr(rax_bottom, wordSize);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   897
  __ cmpptr(rax_bottom, rbx_top);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   898
  __ jcc(Assembler::below, L_loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   899
  assert(Interpreter::stackElementSize == wordSize, "else change loop");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   900
  __ bind(L_break);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   901
  BLOCK_COMMENT("} move_arg_slots_down");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   902
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   903
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   904
// Copy from a field or array element to a stacked argument slot.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   905
// is_element (ignored) says whether caller is loading an array element instead of an instance field.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   906
void MethodHandles::move_typed_arg(MacroAssembler* _masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   907
                                   BasicType type, bool is_element,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   908
                                   Address slot_dest, Address value_src,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   909
                                   Register rbx_temp, Register rdx_temp) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   910
  BLOCK_COMMENT(!is_element ? "move_typed_arg {" : "move_typed_arg { (array element)");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   911
  if (type == T_OBJECT || type == T_ARRAY) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   912
    __ load_heap_oop(rbx_temp, value_src);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   913
    __ movptr(slot_dest, rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   914
  } else if (type != T_VOID) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   915
    int  arg_size      = type2aelembytes(type);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   916
    bool arg_is_signed = is_signed_subword_type(type);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   917
    int  slot_size     = (arg_size > wordSize) ? arg_size : wordSize;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   918
    __ load_sized_value(  rdx_temp,  value_src, arg_size, arg_is_signed, rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   919
    __ store_sized_value( slot_dest, rdx_temp,  slot_size,               rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   920
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   921
  BLOCK_COMMENT("} move_typed_arg");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   922
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   923
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   924
void MethodHandles::move_return_value(MacroAssembler* _masm, BasicType type,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   925
                                      Address return_slot) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   926
  BLOCK_COMMENT("move_return_value {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   927
  // Old versions of the JVM must clean the FPU stack after every return.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   928
#ifndef _LP64
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   929
#ifdef COMPILER2
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   930
  // The FPU stack is clean if UseSSE >= 2 but must be cleaned in other cases
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   931
  if ((type == T_FLOAT && UseSSE < 1) || (type == T_DOUBLE && UseSSE < 2)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   932
    for (int i = 1; i < 8; i++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   933
        __ ffree(i);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   934
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   935
  } else if (UseSSE < 2) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   936
    __ empty_FPU_stack();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   937
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   938
#endif //COMPILER2
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   939
#endif //!_LP64
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   940
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   941
  // Look at the type and pull the value out of the corresponding register.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   942
  if (type == T_VOID) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   943
    // nothing to do
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   944
  } else if (type == T_OBJECT) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   945
    __ movptr(return_slot, rax);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   946
  } else if (type == T_INT || is_subword_type(type)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   947
    // write the whole word, even if only 32 bits is significant
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   948
    __ movptr(return_slot, rax);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   949
  } else if (type == T_LONG) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   950
    // store the value by parts
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   951
    // Note: We assume longs are continguous (if misaligned) on the interpreter stack.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   952
    __ store_sized_value(return_slot, rax, BytesPerLong, rdx);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   953
  } else if (NOT_LP64((type == T_FLOAT  && UseSSE < 1) ||
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   954
                      (type == T_DOUBLE && UseSSE < 2) ||)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   955
             false) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   956
    // Use old x86 FPU registers:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   957
    if (type == T_FLOAT)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   958
      __ fstp_s(return_slot);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   959
    else
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   960
      __ fstp_d(return_slot);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   961
  } else if (type == T_FLOAT) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   962
    __ movflt(return_slot, xmm0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   963
  } else if (type == T_DOUBLE) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   964
    __ movdbl(return_slot, xmm0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   965
  } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   966
    ShouldNotReachHere();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   967
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   968
  BLOCK_COMMENT("} move_return_value");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   969
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   970
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   971
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   972
#ifndef PRODUCT
4562
5d93cb2d2090 6894206: JVM needs a way to traverse method handle structures
twisti
parents: 4478
diff changeset
   973
extern "C" void print_method_handle(oop mh);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   974
void trace_method_handle_stub(const char* adaptername,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   975
                              oop mh,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   976
                              intptr_t* saved_regs,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   977
                              intptr_t* entry_sp,
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 8676
diff changeset
   978
                              intptr_t* saved_sp,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   979
                              intptr_t* saved_bp) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   980
  // called as a leaf from native code: do not block the JVM!
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   981
  bool has_mh = (strstr(adaptername, "return/") == NULL);  // return adapters don't have rcx_mh
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   982
  intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset];
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   983
  intptr_t* base_sp = last_sp;
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   984
  typedef MethodHandles::RicochetFrame RicochetFrame;
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   985
  RicochetFrame* rfp = (RicochetFrame*)((address)saved_bp - RicochetFrame::sender_link_offset_in_bytes());
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   986
  if (!UseRicochetFrames || Universe::heap()->is_in((address) rfp->saved_args_base())) {
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   987
    // Probably an interpreter frame.
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   988
    base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset];
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   989
  }
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   990
  intptr_t    mh_reg = (intptr_t)mh;
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   991
  const char* mh_reg_name = "rcx_mh";
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   992
  if (!has_mh)  mh_reg_name = "rcx";
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   993
  tty->print_cr("MH %s %s="PTR_FORMAT" sp=("PTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="PTR_FORMAT,
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   994
                adaptername, mh_reg_name, mh_reg,
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
   995
                (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   996
  if (Verbose) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   997
    tty->print(" reg dump: ");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   998
    int saved_regs_count = (entry_sp-1) - saved_regs;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   999
    // 32 bit: rdi rsi rbp rsp; rbx rdx rcx (*) rax
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1000
    int i;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1001
    for (i = 0; i <= saved_regs_count; i++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1002
      if (i > 0 && i % 4 == 0 && i != saved_regs_count) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1003
        tty->cr();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1004
        tty->print("   + dump: ");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1005
      }
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1006
      tty->print(" %d: "PTR_FORMAT, i, saved_regs[i]);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1007
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1008
    tty->cr();
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1009
    if (last_sp != saved_sp && last_sp != NULL)
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1010
      tty->print_cr("*** last_sp="PTR_FORMAT, (intptr_t)last_sp);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1011
    int stack_dump_count = 16;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1012
    if (stack_dump_count < (int)(saved_bp + 2 - saved_sp))
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1013
      stack_dump_count = (int)(saved_bp + 2 - saved_sp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1014
    if (stack_dump_count > 64)  stack_dump_count = 48;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1015
    for (i = 0; i < stack_dump_count; i += 4) {
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1016
      tty->print_cr(" dump at SP[%d] "PTR_FORMAT": "PTR_FORMAT" "PTR_FORMAT" "PTR_FORMAT" "PTR_FORMAT,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1017
                    i, (intptr_t) &entry_sp[i+0], entry_sp[i+0], entry_sp[i+1], entry_sp[i+2], entry_sp[i+3]);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1018
    }
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1019
    if (has_mh)
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1020
      print_method_handle(mh);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1021
  }
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1022
}
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1023
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1024
// The stub wraps the arguments in a struct on the stack to avoid
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1025
// dealing with the different calling conventions for passing 6
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1026
// arguments.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1027
struct MethodHandleStubArguments {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1028
  const char* adaptername;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1029
  oopDesc* mh;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1030
  intptr_t* saved_regs;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1031
  intptr_t* entry_sp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1032
  intptr_t* saved_sp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1033
  intptr_t* saved_bp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1034
};
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1035
void trace_method_handle_stub_wrapper(MethodHandleStubArguments* args) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1036
  trace_method_handle_stub(args->adaptername,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1037
                           args->mh,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1038
                           args->saved_regs,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1039
                           args->entry_sp,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1040
                           args->saved_sp,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1041
                           args->saved_bp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1042
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1043
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1044
void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) {
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1045
  if (!TraceMethodHandles)  return;
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1046
  BLOCK_COMMENT("trace_method_handle {");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1047
  __ push(rax);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1048
  __ lea(rax, Address(rsp, wordSize * NOT_LP64(6) LP64_ONLY(14))); // entry_sp  __ pusha();
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1049
  __ pusha();
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1050
  __ mov(rbx, rsp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1051
  __ enter();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1052
  // incoming state:
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 8676
diff changeset
  1053
  // rcx: method handle
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1054
  // r13 or rsi: saved sp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1055
  // To avoid calling convention issues, build a record on the stack and pass the pointer to that instead.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1056
  __ push(rbp);               // saved_bp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1057
  __ push(rsi);               // saved_sp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1058
  __ push(rax);               // entry_sp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1059
  __ push(rbx);               // pusha saved_regs
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1060
  __ push(rcx);               // mh
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1061
  __ push(rcx);               // adaptername
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1062
  __ movptr(Address(rsp, 0), (intptr_t) adaptername);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1063
  __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub_wrapper), rsp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1064
  __ leave();
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1065
  __ popa();
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1066
  __ pop(rax);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1067
  BLOCK_COMMENT("} trace_method_handle");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1068
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1069
#endif //PRODUCT
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1070
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1071
// which conversion op types are implemented here?
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1072
int MethodHandles::adapter_conversion_ops_supported_mask() {
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1073
  return ((1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_ONLY)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1074
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_RAW)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1075
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_CHECK_CAST)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1076
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_PRIM)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1077
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_REF_TO_PRIM)
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1078
          //OP_PRIM_TO_REF is below...
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1079
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_SWAP_ARGS)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1080
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_ROT_ARGS)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1081
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_DUP_ARGS)
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1082
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_DROP_ARGS)
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1083
          //OP_COLLECT_ARGS is below...
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1084
         |(1<<java_lang_invoke_AdapterMethodHandle::OP_SPREAD_ARGS)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1085
         |(!UseRicochetFrames ? 0 :
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1086
           java_lang_invoke_MethodTypeForm::vmlayout_offset_in_bytes() <= 0 ? 0 :
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1087
           ((1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_REF)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1088
           |(1<<java_lang_invoke_AdapterMethodHandle::OP_COLLECT_ARGS)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1089
           |(1<<java_lang_invoke_AdapterMethodHandle::OP_FOLD_ARGS)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1090
            ))
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1091
         );
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1092
}
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1093
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1094
//------------------------------------------------------------------------------
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1095
// MethodHandles::generate_method_handle_stub
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1096
//
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1097
// Generate an "entry" field for a method handle.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1098
// This determines how the method handle will respond to calls.
7887
7aa0354cbf25 7010180: JSR 292 InvokeDynamicPrintArgs fails with: assert(_adapter == NULL) failed: init'd to NULL
twisti
parents: 7712
diff changeset
  1099
void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1100
  MethodHandles::EntryKind ek_orig = ek_original_kind(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1101
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1102
  // Here is the register state during an interpreted call,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1103
  // as set up by generate_method_handle_interpreter_entry():
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1104
  // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1105
  // - rcx: receiver method handle
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1106
  // - rax: method handle type (only used by the check_mtype entry point)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1107
  // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1108
  // - rdx: garbage temp, can blow away
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1109
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1110
  const Register rcx_recv    = rcx;
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1111
  const Register rax_argslot = rax;
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1112
  const Register rbx_temp    = rbx;
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1113
  const Register rdx_temp    = rdx;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1114
  const Register rdi_temp    = rdi;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1115
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1116
  // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls)
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1117
  // and gen_c2i_adapter (from compiled calls):
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1118
  const Register saved_last_sp = saved_last_sp_register();
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1119
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1120
  // Argument registers for _raise_exception.
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1121
  // 32-bit: Pass first two oop/int args in registers ECX and EDX.
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1122
  const Register rarg0_code     = LP64_ONLY(j_rarg0) NOT_LP64(rcx);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1123
  const Register rarg1_actual   = LP64_ONLY(j_rarg1) NOT_LP64(rdx);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1124
  const Register rarg2_required = LP64_ONLY(j_rarg2) NOT_LP64(rdi);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1125
  assert_different_registers(rarg0_code, rarg1_actual, rarg2_required, saved_last_sp);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1126
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1127
  guarantee(java_lang_invoke_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1128
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1129
  // some handy addresses
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1130
  Address rbx_method_fie(     rbx,      methodOopDesc::from_interpreted_offset() );
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1131
  Address rbx_method_fce(     rbx,      methodOopDesc::from_compiled_offset() );
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1132
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1133
  Address rcx_mh_vmtarget(    rcx_recv, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes() );
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1134
  Address rcx_dmh_vmindex(    rcx_recv, java_lang_invoke_DirectMethodHandle::vmindex_offset_in_bytes() );
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1135
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1136
  Address rcx_bmh_vmargslot(  rcx_recv, java_lang_invoke_BoundMethodHandle::vmargslot_offset_in_bytes() );
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1137
  Address rcx_bmh_argument(   rcx_recv, java_lang_invoke_BoundMethodHandle::argument_offset_in_bytes() );
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1138
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1139
  Address rcx_amh_vmargslot(  rcx_recv, java_lang_invoke_AdapterMethodHandle::vmargslot_offset_in_bytes() );
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1140
  Address rcx_amh_argument(   rcx_recv, java_lang_invoke_AdapterMethodHandle::argument_offset_in_bytes() );
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1141
  Address rcx_amh_conversion( rcx_recv, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes() );
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1142
  Address vmarg;                // __ argument_address(vmargslot)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1143
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1144
  const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1145
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1146
  if (have_entry(ek)) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1147
    __ nop();                   // empty stubs make SG sick
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1148
    return;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1149
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1150
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1151
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1152
  __ push((int32_t) 0xEEEEEEEE);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1153
  __ push((int32_t) (intptr_t) entry_name(ek));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1154
  LP64_ONLY(__ push((int32_t) high((intptr_t) entry_name(ek))));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1155
  __ push((int32_t) 0x33333333);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1156
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1157
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1158
  address interp_entry = __ pc();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1159
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1160
  trace_method_handle(_masm, entry_name(ek));
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
  1161
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
  1162
  BLOCK_COMMENT(err_msg("Entry %s {", entry_name(ek)));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1163
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1164
  switch ((int) ek) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1165
  case _raise_exception:
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1166
    {
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1167
      // Not a real MH entry, but rather shared code for raising an
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1168
      // exception.  Since we use the compiled entry, arguments are
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1169
      // expected in compiler argument registers.
7887
7aa0354cbf25 7010180: JSR 292 InvokeDynamicPrintArgs fails with: assert(_adapter == NULL) failed: init'd to NULL
twisti
parents: 7712
diff changeset
  1170
      assert(raise_exception_method(), "must be set");
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1171
      assert(raise_exception_method()->from_compiled_entry(), "method must be linked");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1172
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1173
      const Register rdi_pc = rax;
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1174
      __ pop(rdi_pc);  // caller PC
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1175
      __ mov(rsp, saved_last_sp);  // cut the stack back to where the caller started
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1176
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1177
      Register rbx_method = rbx_temp;
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1178
      Label L_no_method;
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8495
diff changeset
  1179
      // FIXME: fill in _raise_exception_method with a suitable java.lang.invoke method
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1180
      __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method));
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1181
      __ testptr(rbx_method, rbx_method);
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1182
      __ jccb(Assembler::zero, L_no_method);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1183
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1184
      const int jobject_oop_offset = 0;
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1185
      __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset));  // dereference the jobject
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1186
      __ testptr(rbx_method, rbx_method);
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1187
      __ jccb(Assembler::zero, L_no_method);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1188
      __ verify_oop(rbx_method);
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1189
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1190
      NOT_LP64(__ push(rarg2_required));
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1191
      __ push(rdi_pc);         // restore caller PC
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8328
diff changeset
  1192
      __ jmp(rbx_method_fce);  // jump to compiled entry
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1193
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1194
      // Do something that is at least causes a valid throw from the interpreter.
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1195
      __ bind(L_no_method);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1196
      __ push(rarg2_required);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1197
      __ push(rarg1_actual);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1198
      __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry()));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1199
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1200
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1201
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1202
  case _invokestatic_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1203
  case _invokespecial_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1204
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1205
      Register rbx_method = rbx_temp;
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1206
      __ load_heap_oop(rbx_method, rcx_mh_vmtarget); // target is a methodOop
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1207
      __ verify_oop(rbx_method);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1208
      // same as TemplateTable::invokestatic or invokespecial,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1209
      // minus the CP setup and profiling:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1210
      if (ek == _invokespecial_mh) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1211
        // Must load & check the first argument before entering the target method.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1212
        __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1213
        __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1214
        __ null_check(rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1215
        __ verify_oop(rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1216
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1217
      __ jmp(rbx_method_fie);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1218
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1219
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1220
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1221
  case _invokevirtual_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1222
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1223
      // same as TemplateTable::invokevirtual,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1224
      // minus the CP setup and profiling:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1225
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1226
      // pick out the vtable index and receiver offset from the MH,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1227
      // and then we can discard it:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1228
      __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1229
      Register rbx_index = rbx_temp;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1230
      __ movl(rbx_index, rcx_dmh_vmindex);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1231
      // Note:  The verifier allows us to ignore rcx_mh_vmtarget.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1232
      __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1233
      __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1234
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1235
      // get receiver klass
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1236
      Register rax_klass = rax_argslot;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1237
      __ load_klass(rax_klass, rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1238
      __ verify_oop(rax_klass);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1239
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1240
      // get target methodOop & entry point
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1241
      const int base = instanceKlass::vtable_start_offset() * wordSize;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1242
      assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1243
      Address vtable_entry_addr(rax_klass,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1244
                                rbx_index, Address::times_ptr,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1245
                                base + vtableEntry::method_offset_in_bytes());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1246
      Register rbx_method = rbx_temp;
4478
c3a8af0fc6b0 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 4094
diff changeset
  1247
      __ movptr(rbx_method, vtable_entry_addr);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1248
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1249
      __ verify_oop(rbx_method);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1250
      __ jmp(rbx_method_fie);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1251
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1252
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1253
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1254
  case _invokeinterface_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1255
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1256
      // same as TemplateTable::invokeinterface,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1257
      // minus the CP setup and profiling:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1258
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1259
      // pick out the interface and itable index from the MH.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1260
      __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1261
      Register rdx_intf  = rdx_temp;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1262
      Register rbx_index = rbx_temp;
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1263
      __ load_heap_oop(rdx_intf, rcx_mh_vmtarget);
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1264
      __ movl(rbx_index, rcx_dmh_vmindex);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1265
      __ movptr(rcx_recv, __ argument_address(rax_argslot, -1));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1266
      __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1267
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1268
      // get receiver klass
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1269
      Register rax_klass = rax_argslot;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1270
      __ load_klass(rax_klass, rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1271
      __ verify_oop(rax_klass);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1272
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1273
      Register rbx_method = rbx_index;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1274
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1275
      // get interface klass
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1276
      Label no_such_interface;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1277
      __ verify_oop(rdx_intf);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1278
      __ lookup_interface_method(rax_klass, rdx_intf,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1279
                                 // note: next two args must be the same:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1280
                                 rbx_index, rbx_method,
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1281
                                 rdi_temp,
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1282
                                 no_such_interface);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1283
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1284
      __ verify_oop(rbx_method);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1285
      __ jmp(rbx_method_fie);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1286
      __ hlt();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1287
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1288
      __ bind(no_such_interface);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1289
      // Throw an exception.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1290
      // For historical reasons, it will be IncompatibleClassChangeError.
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1291
      __ mov(rbx_temp, rcx_recv);  // rarg2_required might be RCX
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1292
      assert_different_registers(rarg2_required, rbx_temp);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1293
      __ movptr(rarg2_required, Address(rdx_intf, java_mirror_offset));  // required interface
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1294
      __ mov(   rarg1_actual,   rbx_temp);                               // bad receiver
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1295
      __ movl(  rarg0_code,     (int) Bytecodes::_invokeinterface);      // who is complaining?
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1296
      __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1297
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1298
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1299
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1300
  case _bound_ref_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1301
  case _bound_int_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1302
  case _bound_long_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1303
  case _bound_ref_direct_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1304
  case _bound_int_direct_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1305
  case _bound_long_direct_mh:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1306
    {
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
  1307
      const bool direct_to_method = (ek >= _bound_ref_direct_mh);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1308
      BasicType arg_type  = ek_bound_mh_arg_type(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1309
      int       arg_slots = type2size[arg_type];
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1310
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1311
      // make room for the new argument:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1312
      __ movl(rax_argslot, rcx_bmh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1313
      __ lea(rax_argslot, __ argument_address(rax_argslot));
8328
478a1d29e5a3 7018378: JSR 292: _bound_int_mh produces wrong result on 64-bit SPARC
twisti
parents: 7887
diff changeset
  1314
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1315
      insert_arg_slots(_masm, arg_slots * stack_move_unit(), rax_argslot, rbx_temp, rdx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1316
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1317
      // store bound argument into the new stack slot:
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1318
      __ load_heap_oop(rbx_temp, rcx_bmh_argument);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1319
      if (arg_type == T_OBJECT) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1320
        __ movptr(Address(rax_argslot, 0), rbx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1321
      } else {
8328
478a1d29e5a3 7018378: JSR 292: _bound_int_mh produces wrong result on 64-bit SPARC
twisti
parents: 7887
diff changeset
  1322
        Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1323
        move_typed_arg(_masm, arg_type, false,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1324
                       Address(rax_argslot, 0),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1325
                       prim_value_addr,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1326
                       rbx_temp, rdx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1327
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1328
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1329
      if (direct_to_method) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1330
        Register rbx_method = rbx_temp;
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1331
        __ load_heap_oop(rbx_method, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1332
        __ verify_oop(rbx_method);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1333
        __ jmp(rbx_method_fie);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1334
      } else {
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1335
        __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1336
        __ verify_oop(rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1337
        __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1338
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1339
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1340
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1341
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1342
  case _adapter_retype_only:
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1343
  case _adapter_retype_raw:
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1344
    // immediately jump to the next MH layer:
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1345
    __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1346
    __ verify_oop(rcx_recv);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1347
    __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1348
    // This is OK when all parameter types widen.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1349
    // It is also OK when a return type narrows.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1350
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1351
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1352
  case _adapter_check_cast:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1353
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1354
      // temps:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1355
      Register rbx_klass = rbx_temp; // interesting AMH data
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1356
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1357
      // check a reference argument before jumping to the next layer of MH:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1358
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1359
      vmarg = __ argument_address(rax_argslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1360
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1361
      // What class are we casting to?
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1362
      __ load_heap_oop(rbx_klass, rcx_amh_argument); // this is a Class object!
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1363
      load_klass_from_Class(_masm, rbx_klass);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1364
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1365
      Label done;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1366
      __ movptr(rdx_temp, vmarg);
5028
5a7f933d81c1 6928839: JSR 292 typo in x86 _adapter_check_cast
twisti
parents: 4564
diff changeset
  1367
      __ testptr(rdx_temp, rdx_temp);
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1368
      __ jcc(Assembler::zero, done);         // no cast if null
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1369
      __ load_klass(rdx_temp, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1370
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1371
      // live at this point:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1372
      // - rbx_klass:  klass required by the target method
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1373
      // - rdx_temp:   argument klass to test
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1374
      // - rcx_recv:   adapter method handle
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1375
      __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1376
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1377
      // If we get here, the type check failed!
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1378
      // Call the wrong_method_type stub, passing the failing argument type in rax.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1379
      Register rax_mtype = rax_argslot;
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1380
      __ movl(rax_argslot, rcx_amh_vmargslot);  // reload argslot field
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1381
      __ movptr(rdx_temp, vmarg);
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1382
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1383
      assert_different_registers(rarg2_required, rdx_temp);
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1384
      __ load_heap_oop(rarg2_required, rcx_amh_argument);             // required class
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1385
      __ mov(          rarg1_actual,   rdx_temp);                     // bad object
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  1386
      __ movl(         rarg0_code,     (int) Bytecodes::_checkcast);  // who is complaining?
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1387
      __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1388
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1389
      __ bind(done);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  1390
      // get the new MH:
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1391
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1392
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1393
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1394
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1395
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1396
  case _adapter_prim_to_prim:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1397
  case _adapter_ref_to_prim:
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1398
  case _adapter_prim_to_ref:
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1399
    // handled completely by optimized cases
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1400
    __ stop("init_AdapterMethodHandle should not issue this");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1401
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1402
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1403
  case _adapter_opt_i2i:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1404
//case _adapter_opt_f2i:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1405
  case _adapter_opt_l2i:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1406
  case _adapter_opt_unboxi:     // optimized subcase of adapt_ref_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1407
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1408
      // perform an in-place conversion to int or an int subword
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1409
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1410
      vmarg = __ argument_address(rax_argslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1411
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1412
      switch (ek) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1413
      case _adapter_opt_i2i:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1414
        __ movl(rdx_temp, vmarg);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1415
        break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1416
      case _adapter_opt_l2i:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1417
        {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1418
          // just delete the extra slot; on a little-endian machine we keep the first
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1419
          __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1420
          remove_arg_slots(_masm, -stack_move_unit(),
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1421
                           rax_argslot, rbx_temp, rdx_temp);
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5416
diff changeset
  1422
          vmarg = Address(rax_argslot, -Interpreter::stackElementSize);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1423
          __ movl(rdx_temp, vmarg);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1424
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1425
        break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1426
      case _adapter_opt_unboxi:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1427
        {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1428
          // Load the value up from the heap.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1429
          __ movptr(rdx_temp, vmarg);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1430
          int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1431
#ifdef ASSERT
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1432
          for (int bt = T_BOOLEAN; bt < T_INT; bt++) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1433
            if (is_subword_type(BasicType(bt)))
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1434
              assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), "");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1435
          }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1436
#endif
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1437
          __ null_check(rdx_temp, value_offset);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1438
          __ movl(rdx_temp, Address(rdx_temp, value_offset));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1439
          // We load this as a word.  Because we are little-endian,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1440
          // the low bits will be correct, but the high bits may need cleaning.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1441
          // The vminfo will guide us to clean those bits.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1442
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1443
        break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1444
      default:
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
  1445
        ShouldNotReachHere();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1446
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1447
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
  1448
      // Do the requested conversion and store the value.
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1449
      Register rbx_vminfo = rbx_temp;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1450
      load_conversion_vminfo(_masm, rbx_vminfo, rcx_amh_conversion);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1451
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1452
      // get the new MH:
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1453
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1454
      // (now we are done with the old MH)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1455
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1456
      // original 32-bit vmdata word must be of this form:
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
  1457
      //    | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 |
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
  1458
      __ xchgptr(rcx, rbx_vminfo);                // free rcx for shifts
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1459
      __ shll(rdx_temp /*, rcx*/);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1460
      Label zero_extend, done;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1461
      __ testl(rcx, CONV_VMINFO_SIGN_FLAG);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
  1462
      __ jccb(Assembler::zero, zero_extend);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1463
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1464
      // this path is taken for int->byte, int->short
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1465
      __ sarl(rdx_temp /*, rcx*/);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
  1466
      __ jmpb(done);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1467
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1468
      __ bind(zero_extend);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1469
      // this is taken for int->char
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1470
      __ shrl(rdx_temp /*, rcx*/);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1471
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1472
      __ bind(done);
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
  1473
      __ movl(vmarg, rdx_temp);  // Store the value.
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 4562
diff changeset
  1474
      __ xchgptr(rcx, rbx_vminfo);                // restore rcx_recv
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1475
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1476
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1477
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1478
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1479
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1480
  case _adapter_opt_i2l:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1481
  case _adapter_opt_unboxl:     // optimized subcase of adapt_ref_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1482
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1483
      // perform an in-place int-to-long or ref-to-long conversion
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1484
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1485
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1486
      // on a little-endian machine we keep the first slot and add another after
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1487
      __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1488
      insert_arg_slots(_masm, stack_move_unit(),
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1489
                       rax_argslot, rbx_temp, rdx_temp);
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5416
diff changeset
  1490
      Address vmarg1(rax_argslot, -Interpreter::stackElementSize);
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5416
diff changeset
  1491
      Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1492
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1493
      switch (ek) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1494
      case _adapter_opt_i2l:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1495
        {
5044
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1496
#ifdef _LP64
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1497
          __ movslq(rdx_temp, vmarg1);  // Load sign-extended
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1498
          __ movq(vmarg1, rdx_temp);    // Store into first slot
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1499
#else
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1500
          __ movl(rdx_temp, vmarg1);
5044
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1501
          __ sarl(rdx_temp, BitsPerInt - 1);  // __ extend_sign()
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1502
          __ movl(vmarg2, rdx_temp); // store second word
5044
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1503
#endif
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1504
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1505
        break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1506
      case _adapter_opt_unboxl:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1507
        {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1508
          // Load the value up from the heap.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1509
          __ movptr(rdx_temp, vmarg1);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1510
          int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1511
          assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), "");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1512
          __ null_check(rdx_temp, value_offset);
5044
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1513
#ifdef _LP64
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1514
          __ movq(rbx_temp, Address(rdx_temp, value_offset));
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1515
          __ movq(vmarg1, rbx_temp);
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1516
#else
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1517
          __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1518
          __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1519
          __ movl(vmarg1, rbx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1520
          __ movl(vmarg2, rdx_temp);
5044
7e40acdf2163 6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents: 5028
diff changeset
  1521
#endif
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1522
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1523
        break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1524
      default:
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
  1525
        ShouldNotReachHere();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1526
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1527
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1528
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1529
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1530
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1531
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1532
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1533
  case _adapter_opt_f2d:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1534
  case _adapter_opt_d2f:        // optimized subcase of adapt_prim_to_prim
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1535
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1536
      // perform an in-place floating primitive conversion
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1537
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1538
      __ lea(rax_argslot, __ argument_address(rax_argslot, 1));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1539
      if (ek == _adapter_opt_f2d) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1540
        insert_arg_slots(_masm, stack_move_unit(),
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1541
                         rax_argslot, rbx_temp, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1542
      }
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5416
diff changeset
  1543
      Address vmarg(rax_argslot, -Interpreter::stackElementSize);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1544
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1545
#ifdef _LP64
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1546
      if (ek == _adapter_opt_f2d) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1547
        __ movflt(xmm0, vmarg);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1548
        __ cvtss2sd(xmm0, xmm0);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1549
        __ movdbl(vmarg, xmm0);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1550
      } else {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1551
        __ movdbl(xmm0, vmarg);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1552
        __ cvtsd2ss(xmm0, xmm0);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1553
        __ movflt(vmarg, xmm0);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1554
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1555
#else //_LP64
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1556
      if (ek == _adapter_opt_f2d) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1557
        __ fld_s(vmarg);        // load float to ST0
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  1558
        __ fstp_d(vmarg);       // store double
5055
743f38c6e179 6932091: JSR 292 x86 code cleanup
twisti
parents: 5044
diff changeset
  1559
      } else {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1560
        __ fld_d(vmarg);        // load double to ST0
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1561
        __ fstp_s(vmarg);       // store single
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1562
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1563
#endif //_LP64
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1564
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1565
      if (ek == _adapter_opt_d2f) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1566
        remove_arg_slots(_masm, -stack_move_unit(),
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1567
                         rax_argslot, rbx_temp, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1568
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1569
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1570
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1571
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1572
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1573
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1574
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1575
  case _adapter_swap_args:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1576
  case _adapter_rot_args:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1577
    // handled completely by optimized cases
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1578
    __ stop("init_AdapterMethodHandle should not issue this");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1579
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1580
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1581
  case _adapter_opt_swap_1:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1582
  case _adapter_opt_swap_2:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1583
  case _adapter_opt_rot_1_up:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1584
  case _adapter_opt_rot_1_down:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1585
  case _adapter_opt_rot_2_up:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1586
  case _adapter_opt_rot_2_down:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1587
    {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1588
      int swap_slots = ek_adapter_opt_swap_slots(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1589
      int rotate     = ek_adapter_opt_swap_mode(ek);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1590
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1591
      // 'argslot' is the position of the first argument to swap
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1592
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1593
      __ lea(rax_argslot, __ argument_address(rax_argslot));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1594
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1595
      // 'vminfo' is the second
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1596
      Register rbx_destslot = rbx_temp;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1597
      load_conversion_vminfo(_masm, rbx_destslot, rcx_amh_conversion);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1598
      __ lea(rbx_destslot, __ argument_address(rbx_destslot));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1599
      if (VerifyMethodHandles)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1600
        verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1601
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1602
      assert(Interpreter::stackElementSize == wordSize, "else rethink use of wordSize here");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1603
      if (!rotate) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1604
        // simple swap
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1605
        for (int i = 0; i < swap_slots; i++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1606
          __ movptr(rdi_temp, Address(rax_argslot,  i * wordSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1607
          __ movptr(rdx_temp, Address(rbx_destslot, i * wordSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1608
          __ movptr(Address(rax_argslot,  i * wordSize), rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1609
          __ movptr(Address(rbx_destslot, i * wordSize), rdi_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1610
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1611
      } else {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1612
        // A rotate is actually pair of moves, with an "odd slot" (or pair)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1613
        // changing place with a series of other slots.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1614
        // First, push the "odd slot", which is going to get overwritten
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1615
        for (int i = swap_slots - 1; i >= 0; i--) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1616
          // handle one with rdi_temp instead of a push:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1617
          if (i == 0)  __ movptr(rdi_temp, Address(rax_argslot, i * wordSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1618
          else         __ pushptr(         Address(rax_argslot, i * wordSize));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1619
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1620
        if (rotate > 0) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1621
          // Here is rotate > 0:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1622
          // (low mem)                                          (high mem)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1623
          //     | dest:     more_slots...     | arg: odd_slot :arg+1 |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1624
          // =>
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1625
          //     | dest: odd_slot | dest+1: more_slots...      :arg+1 |
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1626
          // work argslot down to destslot, copying contiguous data upwards
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1627
          // pseudo-code:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1628
          //   rax = src_addr - swap_bytes
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1629
          //   rbx = dest_addr
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1630
          //   while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1631
          move_arg_slots_up(_masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1632
                            rbx_destslot,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1633
                            Address(rax_argslot, 0),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1634
                            swap_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1635
                            rax_argslot, rdx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1636
        } else {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1637
          // Here is the other direction, rotate < 0:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1638
          // (low mem)                                          (high mem)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1639
          //     | arg: odd_slot | arg+1: more_slots...       :dest+1 |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1640
          // =>
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1641
          //     | arg:    more_slots...     | dest: odd_slot :dest+1 |
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1642
          // work argslot up to destslot, copying contiguous data downwards
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1643
          // pseudo-code:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1644
          //   rax = src_addr + swap_bytes
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1645
          //   rbx = dest_addr
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1646
          //   while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++;
9980
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9978
diff changeset
  1647
          // dest_slot denotes an exclusive upper limit
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9978
diff changeset
  1648
          int limit_bias = OP_ROT_ARGS_DOWN_LIMIT_BIAS;
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9978
diff changeset
  1649
          if (limit_bias != 0)
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9978
diff changeset
  1650
            __ addptr(rbx_destslot, - limit_bias * wordSize);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1651
          move_arg_slots_down(_masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1652
                              Address(rax_argslot, swap_slots * wordSize),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1653
                              rbx_destslot,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1654
                              -swap_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1655
                              rax_argslot, rdx_temp);
9980
a330de5dea17 7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters
never
parents: 9978
diff changeset
  1656
          __ subptr(rbx_destslot, swap_slots * wordSize);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1657
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1658
        // pop the original first chunk into the destination slot, now free
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1659
        for (int i = 0; i < swap_slots; i++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1660
          if (i == 0)  __ movptr(Address(rbx_destslot, i * wordSize), rdi_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1661
          else         __ popptr(Address(rbx_destslot, i * wordSize));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1662
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1663
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1664
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1665
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1666
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1667
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1668
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1669
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1670
  case _adapter_dup_args:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1671
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1672
      // 'argslot' is the position of the first argument to duplicate
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1673
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1674
      __ lea(rax_argslot, __ argument_address(rax_argslot));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1675
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1676
      // 'stack_move' is negative number of words to duplicate
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1677
      Register rdi_stack_move = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1678
      load_stack_move(_masm, rdi_stack_move, rcx_recv, true);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1679
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1680
      if (VerifyMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1681
        verify_argslots(_masm, rdi_stack_move, rax_argslot, true,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1682
                        "copied argument(s) must fall within current frame");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1683
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1684
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1685
      // insert location is always the bottom of the argument list:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1686
      Address insert_location = __ argument_address(constant(0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1687
      int pre_arg_words = insert_location.disp() / wordSize;   // return PC is pushed
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1688
      assert(insert_location.base() == rsp, "");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1689
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1690
      __ negl(rdi_stack_move);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1691
      push_arg_slots(_masm, rax_argslot, rdi_stack_move,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1692
                     pre_arg_words, rbx_temp, rdx_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1693
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1694
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1695
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1696
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1697
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1698
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1699
  case _adapter_drop_args:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1700
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1701
      // 'argslot' is the position of the first argument to nuke
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1702
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1703
      __ lea(rax_argslot, __ argument_address(rax_argslot));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1704
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1705
      // (must do previous push after argslot address is taken)
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1706
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1707
      // 'stack_move' is number of words to drop
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1708
      Register rdi_stack_move = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1709
      load_stack_move(_masm, rdi_stack_move, rcx_recv, false);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1710
      remove_arg_slots(_masm, rdi_stack_move,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1711
                       rax_argslot, rbx_temp, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1712
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  1713
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1714
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1715
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1716
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1717
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1718
  case _adapter_collect_args:
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1719
  case _adapter_fold_args:
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1720
  case _adapter_spread_args:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1721
    // handled completely by optimized cases
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1722
    __ stop("init_AdapterMethodHandle should not issue this");
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1723
    break;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  1724
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1725
  case _adapter_opt_collect_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1726
  case _adapter_opt_collect_int:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1727
  case _adapter_opt_collect_long:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1728
  case _adapter_opt_collect_float:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1729
  case _adapter_opt_collect_double:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1730
  case _adapter_opt_collect_void:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1731
  case _adapter_opt_collect_0_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1732
  case _adapter_opt_collect_1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1733
  case _adapter_opt_collect_2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1734
  case _adapter_opt_collect_3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1735
  case _adapter_opt_collect_4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1736
  case _adapter_opt_collect_5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1737
  case _adapter_opt_filter_S0_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1738
  case _adapter_opt_filter_S1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1739
  case _adapter_opt_filter_S2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1740
  case _adapter_opt_filter_S3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1741
  case _adapter_opt_filter_S4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1742
  case _adapter_opt_filter_S5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1743
  case _adapter_opt_collect_2_S0_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1744
  case _adapter_opt_collect_2_S1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1745
  case _adapter_opt_collect_2_S2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1746
  case _adapter_opt_collect_2_S3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1747
  case _adapter_opt_collect_2_S4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1748
  case _adapter_opt_collect_2_S5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1749
  case _adapter_opt_fold_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1750
  case _adapter_opt_fold_int:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1751
  case _adapter_opt_fold_long:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1752
  case _adapter_opt_fold_float:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1753
  case _adapter_opt_fold_double:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1754
  case _adapter_opt_fold_void:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1755
  case _adapter_opt_fold_1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1756
  case _adapter_opt_fold_2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1757
  case _adapter_opt_fold_3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1758
  case _adapter_opt_fold_4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1759
  case _adapter_opt_fold_5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1760
    {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1761
      // Given a fresh incoming stack frame, build a new ricochet frame.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1762
      // On entry, TOS points at a return PC, and RBP is the callers frame ptr.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1763
      // RSI/R13 has the caller's exact stack pointer, which we must also preserve.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1764
      // RCX contains an AdapterMethodHandle of the indicated kind.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1765
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1766
      // Relevant AMH fields:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1767
      // amh.vmargslot:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1768
      //   points to the trailing edge of the arguments
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1769
      //   to filter, collect, or fold.  For a boxing operation,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1770
      //   it points just after the single primitive value.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1771
      // amh.argument:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1772
      //   recursively called MH, on |collect| arguments
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1773
      // amh.vmtarget:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1774
      //   final destination MH, on return value, etc.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1775
      // amh.conversion.dest:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1776
      //   tells what is the type of the return value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1777
      //   (not needed here, since dest is also derived from ek)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1778
      // amh.conversion.vminfo:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1779
      //   points to the trailing edge of the return value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1780
      //   when the vmtarget is to be called; this is
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1781
      //   equal to vmargslot + (retained ? |collect| : 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1782
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1783
      // Pass 0 or more argument slots to the recursive target.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1784
      int collect_count_constant = ek_adapter_opt_collect_count(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1785
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1786
      // The collected arguments are copied from the saved argument list:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1787
      int collect_slot_constant = ek_adapter_opt_collect_slot(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1788
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1789
      assert(ek_orig == _adapter_collect_args ||
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1790
             ek_orig == _adapter_fold_args, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1791
      bool retain_original_args = (ek_orig == _adapter_fold_args);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1792
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1793
      // The return value is replaced (or inserted) at the 'vminfo' argslot.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1794
      // Sometimes we can compute this statically.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1795
      int dest_slot_constant = -1;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1796
      if (!retain_original_args)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1797
        dest_slot_constant = collect_slot_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1798
      else if (collect_slot_constant >= 0 && collect_count_constant >= 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1799
        // We are preserving all the arguments, and the return value is prepended,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1800
        // so the return slot is to the left (above) the |collect| sequence.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1801
        dest_slot_constant = collect_slot_constant + collect_count_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1802
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1803
      // Replace all those slots by the result of the recursive call.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1804
      // The result type can be one of ref, int, long, float, double, void.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1805
      // In the case of void, nothing is pushed on the stack after return.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1806
      BasicType dest = ek_adapter_opt_collect_type(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1807
      assert(dest == type2wfield[dest], "dest is a stack slot type");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1808
      int dest_count = type2size[dest];
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1809
      assert(dest_count == 1 || dest_count == 2 || (dest_count == 0 && dest == T_VOID), "dest has a size");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1810
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1811
      // Choose a return continuation.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1812
      EntryKind ek_ret = _adapter_opt_return_any;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1813
      if (dest != T_CONFLICT && OptimizeMethodHandles) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1814
        switch (dest) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1815
        case T_INT    : ek_ret = _adapter_opt_return_int;     break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1816
        case T_LONG   : ek_ret = _adapter_opt_return_long;    break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1817
        case T_FLOAT  : ek_ret = _adapter_opt_return_float;   break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1818
        case T_DOUBLE : ek_ret = _adapter_opt_return_double;  break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1819
        case T_OBJECT : ek_ret = _adapter_opt_return_ref;     break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1820
        case T_VOID   : ek_ret = _adapter_opt_return_void;    break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1821
        default       : ShouldNotReachHere();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1822
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1823
        if (dest == T_OBJECT && dest_slot_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1824
          EntryKind ek_try = EntryKind(_adapter_opt_return_S0_ref + dest_slot_constant);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1825
          if (ek_try <= _adapter_opt_return_LAST &&
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1826
              ek_adapter_opt_return_slot(ek_try) == dest_slot_constant) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1827
            ek_ret = ek_try;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1828
          }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1829
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1830
        assert(ek_adapter_opt_return_type(ek_ret) == dest, "");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1831
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1832
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1833
      // Already pushed:  ... keep1 | collect | keep2 | sender_pc |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1834
      // push(sender_pc);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1835
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1836
      // Compute argument base:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1837
      Register rax_argv = rax_argslot;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1838
      __ lea(rax_argv, __ argument_address(constant(0)));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1839
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1840
      // Push a few extra argument words, if we need them to store the return value.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1841
      {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1842
        int extra_slots = 0;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1843
        if (retain_original_args) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1844
          extra_slots = dest_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1845
        } else if (collect_count_constant == -1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1846
          extra_slots = dest_count;  // collect_count might be zero; be generous
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1847
        } else if (dest_count > collect_count_constant) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1848
          extra_slots = (dest_count - collect_count_constant);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1849
        } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1850
          // else we know we have enough dead space in |collect| to repurpose for return values
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1851
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1852
        DEBUG_ONLY(extra_slots += 1);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1853
        if (extra_slots > 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1854
          __ pop(rbx_temp);   // return value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1855
          __ subptr(rsp, (extra_slots * Interpreter::stackElementSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1856
          // Push guard word #2 in debug mode.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1857
          DEBUG_ONLY(__ movptr(Address(rsp, 0), (int32_t) RicochetFrame::MAGIC_NUMBER_2));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1858
          __ push(rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1859
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1860
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1861
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1862
      RicochetFrame::enter_ricochet_frame(_masm, rcx_recv, rax_argv,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1863
                                          entry(ek_ret)->from_interpreted_entry(), rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1864
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1865
      // Now pushed:  ... keep1 | collect | keep2 | RF |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1866
      // some handy frame slots:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1867
      Address exact_sender_sp_addr = RicochetFrame::frame_address(RicochetFrame::exact_sender_sp_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1868
      Address conversion_addr      = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1869
      Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1870
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1871
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1872
      if (VerifyMethodHandles && dest != T_CONFLICT) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1873
        BLOCK_COMMENT("verify AMH.conv.dest");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1874
        load_conversion_dest_type(_masm, rbx_temp, conversion_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1875
        Label L_dest_ok;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1876
        __ cmpl(rbx_temp, (int) dest);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1877
        __ jcc(Assembler::equal, L_dest_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1878
        if (dest == T_INT) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1879
          for (int bt = T_BOOLEAN; bt < T_INT; bt++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1880
            if (is_subword_type(BasicType(bt))) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1881
              __ cmpl(rbx_temp, (int) bt);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1882
              __ jcc(Assembler::equal, L_dest_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1883
            }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1884
          }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1885
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1886
        __ stop("bad dest in AMH.conv");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1887
        __ BIND(L_dest_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1888
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1889
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1890
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1891
      // Find out where the original copy of the recursive argument sequence begins.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1892
      Register rax_coll = rax_argv;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1893
      {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1894
        RegisterOrConstant collect_slot = collect_slot_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1895
        if (collect_slot_constant == -1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1896
          __ movl(rdi_temp, rcx_amh_vmargslot);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1897
          collect_slot = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1898
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1899
        if (collect_slot_constant != 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1900
          __ lea(rax_coll, Address(rax_argv, collect_slot, Interpreter::stackElementScale()));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1901
        // rax_coll now points at the trailing edge of |collect| and leading edge of |keep2|
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1902
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1903
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1904
      // Replace the old AMH with the recursive MH.  (No going back now.)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1905
      // In the case of a boxing call, the recursive call is to a 'boxer' method,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1906
      // such as Integer.valueOf or Long.valueOf.  In the case of a filter
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1907
      // or collect call, it will take one or more arguments, transform them,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1908
      // and return some result, to store back into argument_base[vminfo].
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1909
      __ load_heap_oop(rcx_recv, rcx_amh_argument);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1910
      if (VerifyMethodHandles)  verify_method_handle(_masm, rcx_recv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1911
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1912
      // Push a space for the recursively called MH first:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1913
      __ push((int32_t)NULL_WORD);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1914
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1915
      // Calculate |collect|, the number of arguments we are collecting.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1916
      Register rdi_collect_count = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1917
      RegisterOrConstant collect_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1918
      if (collect_count_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1919
        collect_count = collect_count_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1920
      } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1921
        __ load_method_handle_vmslots(rdi_collect_count, rcx_recv, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1922
        collect_count = rdi_collect_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1923
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1924
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1925
      if (VerifyMethodHandles && collect_count_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1926
        __ load_method_handle_vmslots(rbx_temp, rcx_recv, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1927
        Label L_count_ok;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1928
        __ cmpl(rbx_temp, collect_count_constant);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1929
        __ jcc(Assembler::equal, L_count_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1930
        __ stop("bad vminfo in AMH.conv");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1931
        __ BIND(L_count_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1932
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1933
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1934
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1935
      // copy |collect| slots directly to TOS:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1936
      push_arg_slots(_masm, rax_coll, collect_count, 0, rbx_temp, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1937
      // Now pushed:  ... keep1 | collect | keep2 | RF... | collect |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1938
      // rax_coll still points at the trailing edge of |collect| and leading edge of |keep2|
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1939
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1940
      // If necessary, adjust the saved arguments to make room for the eventual return value.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1941
      // Normal adjustment:  ... keep1 | +dest+ | -collect- | keep2 | RF... | collect |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1942
      // If retaining args:  ... keep1 | +dest+ |  collect  | keep2 | RF... | collect |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1943
      // In the non-retaining case, this might move keep2 either up or down.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1944
      // We don't have to copy the whole | RF... collect | complex,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1945
      // but we must adjust RF.saved_args_base.
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
  1946
      // Also, from now on, we will forget about the original copy of |collect|.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1947
      // If we are retaining it, we will treat it as part of |keep2|.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1948
      // For clarity we will define |keep3| = |collect|keep2| or |keep2|.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1949
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1950
      BLOCK_COMMENT("adjust trailing arguments {");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1951
      // Compare the sizes of |+dest+| and |-collect-|, which are opposed opening and closing movements.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1952
      int                open_count  = dest_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1953
      RegisterOrConstant close_count = collect_count_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1954
      Register rdi_close_count = rdi_collect_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1955
      if (retain_original_args) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1956
        close_count = constant(0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1957
      } else if (collect_count_constant == -1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1958
        close_count = rdi_collect_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1959
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1960
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1961
      // How many slots need moving?  This is simply dest_slot (0 => no |keep3|).
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1962
      RegisterOrConstant keep3_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1963
      Register rsi_keep3_count = rsi;  // can repair from RF.exact_sender_sp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1964
      if (dest_slot_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1965
        keep3_count = dest_slot_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1966
      } else  {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1967
        load_conversion_vminfo(_masm, rsi_keep3_count, conversion_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1968
        keep3_count = rsi_keep3_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1969
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1970
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1971
      if (VerifyMethodHandles && dest_slot_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1972
        load_conversion_vminfo(_masm, rbx_temp, conversion_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1973
        Label L_vminfo_ok;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1974
        __ cmpl(rbx_temp, dest_slot_constant);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1975
        __ jcc(Assembler::equal, L_vminfo_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1976
        __ stop("bad vminfo in AMH.conv");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1977
        __ BIND(L_vminfo_ok);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1978
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1979
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1980
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1981
      // tasks remaining:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1982
      bool move_keep3 = (!keep3_count.is_constant() || keep3_count.as_constant() != 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1983
      bool stomp_dest = (NOT_DEBUG(dest == T_OBJECT) DEBUG_ONLY(dest_count != 0));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1984
      bool fix_arg_base = (!close_count.is_constant() || open_count != close_count.as_constant());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1985
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1986
      if (stomp_dest | fix_arg_base) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1987
        // we will probably need an updated rax_argv value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1988
        if (collect_slot_constant >= 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1989
          // rax_coll already holds the leading edge of |keep2|, so tweak it
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1990
          assert(rax_coll == rax_argv, "elided a move");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1991
          if (collect_slot_constant != 0)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1992
            __ subptr(rax_argv, collect_slot_constant * Interpreter::stackElementSize);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1993
        } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1994
          // Just reload from RF.saved_args_base.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1995
          __ movptr(rax_argv, saved_args_base_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1996
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1997
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1998
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  1999
      // Old and new argument locations (based at slot 0).
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2000
      // Net shift (&new_argv - &old_argv) is (close_count - open_count).
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2001
      bool zero_open_count = (open_count == 0);  // remember this bit of info
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2002
      if (move_keep3 && fix_arg_base) {
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
  2003
        // It will be easier to have everything in one register:
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2004
        if (close_count.is_register()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2005
          // Deduct open_count from close_count register to get a clean +/- value.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2006
          __ subptr(close_count.as_register(), open_count);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2007
        } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2008
          close_count = close_count.as_constant() - open_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2009
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2010
        open_count = 0;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2011
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2012
      Address old_argv(rax_argv, 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2013
      Address new_argv(rax_argv, close_count,  Interpreter::stackElementScale(),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2014
                                - open_count * Interpreter::stackElementSize);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2015
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2016
      // First decide if any actual data are to be moved.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2017
      // We can skip if (a) |keep3| is empty, or (b) the argument list size didn't change.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2018
      // (As it happens, all movements involve an argument list size change.)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2019
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2020
      // If there are variable parameters, use dynamic checks to skip around the whole mess.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2021
      Label L_done;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2022
      if (!keep3_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2023
        __ testl(keep3_count.as_register(), keep3_count.as_register());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2024
        __ jcc(Assembler::zero, L_done);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2025
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2026
      if (!close_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2027
        __ cmpl(close_count.as_register(), open_count);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2028
        __ jcc(Assembler::equal, L_done);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2029
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2030
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2031
      if (move_keep3 && fix_arg_base) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2032
        bool emit_move_down = false, emit_move_up = false, emit_guard = false;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2033
        if (!close_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2034
          emit_move_down = emit_guard = !zero_open_count;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2035
          emit_move_up   = true;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2036
        } else if (open_count != close_count.as_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2037
          emit_move_down = (open_count > close_count.as_constant());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2038
          emit_move_up   = !emit_move_down;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2039
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2040
        Label L_move_up;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2041
        if (emit_guard) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2042
          __ cmpl(close_count.as_register(), open_count);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2043
          __ jcc(Assembler::greater, L_move_up);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2044
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2045
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2046
        if (emit_move_down) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2047
          // Move arguments down if |+dest+| > |-collect-|
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2048
          // (This is rare, except when arguments are retained.)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2049
          // This opens space for the return value.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2050
          if (keep3_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2051
            for (int i = 0; i < keep3_count.as_constant(); i++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2052
              __ movptr(rdx_temp, old_argv.plus_disp(i * Interpreter::stackElementSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2053
              __ movptr(          new_argv.plus_disp(i * Interpreter::stackElementSize), rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2054
            }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2055
          } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2056
            Register rbx_argv_top = rbx_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2057
            __ lea(rbx_argv_top, old_argv.plus_disp(keep3_count, Interpreter::stackElementScale()));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2058
            move_arg_slots_down(_masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2059
                                old_argv,     // beginning of old argv
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2060
                                rbx_argv_top, // end of old argv
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2061
                                close_count,  // distance to move down (must be negative)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2062
                                rax_argv, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2063
            // Used argv as an iteration variable; reload from RF.saved_args_base.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2064
            __ movptr(rax_argv, saved_args_base_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2065
          }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2066
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2067
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2068
        if (emit_guard) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2069
          __ jmp(L_done);  // assumes emit_move_up is true also
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2070
          __ BIND(L_move_up);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2071
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2072
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2073
        if (emit_move_up) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2074
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2075
          // Move arguments up if |+dest+| < |-collect-|
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2076
          // (This is usual, except when |keep3| is empty.)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2077
          // This closes up the space occupied by the now-deleted collect values.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2078
          if (keep3_count.is_constant()) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2079
            for (int i = keep3_count.as_constant() - 1; i >= 0; i--) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2080
              __ movptr(rdx_temp, old_argv.plus_disp(i * Interpreter::stackElementSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2081
              __ movptr(          new_argv.plus_disp(i * Interpreter::stackElementSize), rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2082
            }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2083
          } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2084
            Address argv_top = old_argv.plus_disp(keep3_count, Interpreter::stackElementScale());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2085
            move_arg_slots_up(_masm,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2086
                              rax_argv,     // beginning of old argv
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2087
                              argv_top,     // end of old argv
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2088
                              close_count,  // distance to move up (must be positive)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2089
                              rbx_temp, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2090
          }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2091
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2092
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2093
      __ BIND(L_done);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2094
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2095
      if (fix_arg_base) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2096
        // adjust RF.saved_args_base by adding (close_count - open_count)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2097
        if (!new_argv.is_same_address(Address(rax_argv, 0)))
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2098
          __ lea(rax_argv, new_argv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2099
        __ movptr(saved_args_base_addr, rax_argv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2100
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2101
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2102
      if (stomp_dest) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2103
        // Stomp the return slot, so it doesn't hold garbage.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2104
        // This isn't strictly necessary, but it may help detect bugs.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2105
        int forty_two = RicochetFrame::RETURN_VALUE_PLACEHOLDER;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2106
        __ movptr(Address(rax_argv, keep3_count, Address::times_ptr),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2107
                  (int32_t) forty_two);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2108
        // uses rsi_keep3_count
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2109
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2110
      BLOCK_COMMENT("} adjust trailing arguments");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2111
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2112
      BLOCK_COMMENT("do_recursive_call");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2113
      __ mov(saved_last_sp, rsp);    // set rsi/r13 for callee
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2114
      __ pushptr(ExternalAddress(SharedRuntime::ricochet_blob()->bounce_addr()).addr());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2115
      // The globally unique bounce address has two purposes:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2116
      // 1. It helps the JVM recognize this frame (frame::is_ricochet_frame).
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2117
      // 2. When returned to, it cuts back the stack and redirects control flow
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2118
      //    to the return handler.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2119
      // The return handler will further cut back the stack when it takes
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2120
      // down the RF.  Perhaps there is a way to streamline this further.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2121
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2122
      // State during recursive call:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2123
      // ... keep1 | dest | dest=42 | keep3 | RF... | collect | bounce_pc |
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2124
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2125
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2126
      break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2127
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2128
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2129
  case _adapter_opt_return_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2130
  case _adapter_opt_return_int:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2131
  case _adapter_opt_return_long:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2132
  case _adapter_opt_return_float:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2133
  case _adapter_opt_return_double:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2134
  case _adapter_opt_return_void:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2135
  case _adapter_opt_return_S0_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2136
  case _adapter_opt_return_S1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2137
  case _adapter_opt_return_S2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2138
  case _adapter_opt_return_S3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2139
  case _adapter_opt_return_S4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2140
  case _adapter_opt_return_S5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2141
    {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2142
      BasicType dest_type_constant = ek_adapter_opt_return_type(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2143
      int       dest_slot_constant = ek_adapter_opt_return_slot(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2144
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2145
      if (VerifyMethodHandles)  RicochetFrame::verify_clean(_masm);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2146
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2147
      if (dest_slot_constant == -1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2148
        // The current stub is a general handler for this dest_type.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2149
        // It can be called from _adapter_opt_return_any below.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2150
        // Stash the address in a little table.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2151
        assert((dest_type_constant & CONV_TYPE_MASK) == dest_type_constant, "oob");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2152
        address return_handler = __ pc();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2153
        _adapter_return_handlers[dest_type_constant] = return_handler;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2154
        if (dest_type_constant == T_INT) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2155
          // do the subword types too
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2156
          for (int bt = T_BOOLEAN; bt < T_INT; bt++) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2157
            if (is_subword_type(BasicType(bt)) &&
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2158
                _adapter_return_handlers[bt] == NULL) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2159
              _adapter_return_handlers[bt] = return_handler;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2160
            }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2161
          }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2162
        }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2163
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2164
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2165
      Register rbx_arg_base = rbx_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2166
      assert_different_registers(rax, rdx,  // possibly live return value registers
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2167
                                 rdi_temp, rbx_arg_base);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2168
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2169
      Address conversion_addr      = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2170
      Address saved_args_base_addr = RicochetFrame::frame_address(RicochetFrame::saved_args_base_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2171
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2172
      __ movptr(rbx_arg_base, saved_args_base_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2173
      RegisterOrConstant dest_slot = dest_slot_constant;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2174
      if (dest_slot_constant == -1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2175
        load_conversion_vminfo(_masm, rdi_temp, conversion_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2176
        dest_slot = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2177
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2178
      // Store the result back into the argslot.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2179
      // This code uses the interpreter calling sequence, in which the return value
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2180
      // is usually left in the TOS register, as defined by InterpreterMacroAssembler::pop.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2181
      // There are certain irregularities with floating point values, which can be seen
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2182
      // in TemplateInterpreterGenerator::generate_return_entry_for.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2183
      move_return_value(_masm, dest_type_constant, Address(rbx_arg_base, dest_slot, Interpreter::stackElementScale()));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2184
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2185
      RicochetFrame::leave_ricochet_frame(_masm, rcx_recv, rbx_arg_base, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2186
      __ push(rdx_temp);  // repush the return PC
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2187
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2188
      // Load the final target and go.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2189
      if (VerifyMethodHandles)  verify_method_handle(_masm, rcx_recv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2190
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2191
      __ hlt(); // --------------------
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2192
      break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2193
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2194
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2195
  case _adapter_opt_return_any:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2196
    {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2197
      if (VerifyMethodHandles)  RicochetFrame::verify_clean(_masm);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2198
      Register rdi_conv = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2199
      assert_different_registers(rax, rdx,  // possibly live return value registers
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2200
                                 rdi_conv, rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2201
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2202
      Address conversion_addr = RicochetFrame::frame_address(RicochetFrame::conversion_offset_in_bytes());
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2203
      load_conversion_dest_type(_masm, rdi_conv, conversion_addr);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2204
      __ lea(rbx_temp, ExternalAddress((address) &_adapter_return_handlers[0]));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2205
      __ movptr(rbx_temp, Address(rbx_temp, rdi_conv, Address::times_ptr));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2206
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2207
#ifdef ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2208
      { Label L_badconv;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2209
        __ testptr(rbx_temp, rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2210
        __ jccb(Assembler::zero, L_badconv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2211
        __ jmp(rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2212
        __ bind(L_badconv);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2213
        __ stop("bad method handle return");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2214
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2215
#else //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2216
      __ jmp(rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2217
#endif //ASSERT
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2218
      break;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2219
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2220
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2221
  case _adapter_opt_spread_0:
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2222
  case _adapter_opt_spread_1_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2223
  case _adapter_opt_spread_2_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2224
  case _adapter_opt_spread_3_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2225
  case _adapter_opt_spread_4_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2226
  case _adapter_opt_spread_5_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2227
  case _adapter_opt_spread_ref:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2228
  case _adapter_opt_spread_byte:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2229
  case _adapter_opt_spread_char:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2230
  case _adapter_opt_spread_short:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2231
  case _adapter_opt_spread_int:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2232
  case _adapter_opt_spread_long:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2233
  case _adapter_opt_spread_float:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2234
  case _adapter_opt_spread_double:
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2235
    {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2236
      // spread an array out into a group of arguments
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2237
      int length_constant = ek_adapter_opt_spread_count(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2238
      bool length_can_be_zero = (length_constant == 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2239
      if (length_constant < 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2240
        // some adapters with variable length must handle the zero case
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2241
        if (!OptimizeMethodHandles ||
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2242
            ek_adapter_opt_spread_type(ek) != T_OBJECT)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2243
          length_can_be_zero = true;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2244
      }
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2245
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2246
      // find the address of the array argument
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2247
      __ movl(rax_argslot, rcx_amh_vmargslot);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2248
      __ lea(rax_argslot, __ argument_address(rax_argslot));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2249
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2250
      // grab another temp
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2251
      Register rsi_temp = rsi;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2252
      { if (rsi_temp == saved_last_sp)  __ push(saved_last_sp); }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2253
      // (preceding push must be done after argslot address is taken!)
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2254
#define UNPUSH_RSI \
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2255
      { if (rsi_temp == saved_last_sp)  __ pop(saved_last_sp); }
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2256
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2257
      // arx_argslot points both to the array and to the first output arg
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2258
      vmarg = Address(rax_argslot, 0);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2259
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2260
      // Get the array value.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2261
      Register  rsi_array       = rsi_temp;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2262
      Register  rdx_array_klass = rdx_temp;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2263
      BasicType elem_type = ek_adapter_opt_spread_type(ek);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2264
      int       elem_slots = type2size[elem_type];  // 1 or 2
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2265
      int       array_slots = 1;  // array is always a T_OBJECT
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2266
      int       length_offset   = arrayOopDesc::length_offset_in_bytes();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2267
      int       elem0_offset    = arrayOopDesc::base_offset_in_bytes(elem_type);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2268
      __ movptr(rsi_array, vmarg);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2269
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2270
      Label L_array_is_empty, L_insert_arg_space, L_copy_args, L_args_done;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2271
      if (length_can_be_zero) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2272
        // handle the null pointer case, if zero is allowed
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2273
        Label L_skip;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2274
        if (length_constant < 0) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2275
          load_conversion_vminfo(_masm, rbx_temp, rcx_amh_conversion);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2276
          __ testl(rbx_temp, rbx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2277
          __ jcc(Assembler::notZero, L_skip);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2278
        }
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2279
        __ testptr(rsi_array, rsi_array);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2280
        __ jcc(Assembler::zero, L_array_is_empty);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2281
        __ bind(L_skip);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2282
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2283
      __ null_check(rsi_array, oopDesc::klass_offset_in_bytes());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2284
      __ load_klass(rdx_array_klass, rsi_array);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2285
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2286
      // Check the array type.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2287
      Register rbx_klass = rbx_temp;
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  2288
      __ load_heap_oop(rbx_klass, rcx_amh_argument); // this is a Class object!
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2289
      load_klass_from_Class(_masm, rbx_klass);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2290
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2291
      Label ok_array_klass, bad_array_klass, bad_array_length;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2292
      __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi_temp, ok_array_klass);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2293
      // If we get here, the type check failed!
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2294
      __ jmp(bad_array_klass);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2295
      __ BIND(ok_array_klass);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2296
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2297
      // Check length.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2298
      if (length_constant >= 0) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2299
        __ cmpl(Address(rsi_array, length_offset), length_constant);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2300
      } else {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2301
        Register rbx_vminfo = rbx_temp;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2302
        load_conversion_vminfo(_masm, rbx_vminfo, rcx_amh_conversion);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2303
        __ cmpl(rbx_vminfo, Address(rsi_array, length_offset));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2304
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2305
      __ jcc(Assembler::notEqual, bad_array_length);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2306
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2307
      Register rdx_argslot_limit = rdx_temp;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2308
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2309
      // Array length checks out.  Now insert any required stack slots.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2310
      if (length_constant == -1) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2311
        // Form a pointer to the end of the affected region.
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5416
diff changeset
  2312
        __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2313
        // 'stack_move' is negative number of words to insert
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2314
        // This number already accounts for elem_slots.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2315
        Register rdi_stack_move = rdi_temp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2316
        load_stack_move(_masm, rdi_stack_move, rcx_recv, true);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2317
        __ cmpptr(rdi_stack_move, 0);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2318
        assert(stack_move_unit() < 0, "else change this comparison");
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2319
        __ jcc(Assembler::less, L_insert_arg_space);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2320
        __ jcc(Assembler::equal, L_copy_args);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2321
        // single argument case, with no array movement
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2322
        __ BIND(L_array_is_empty);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2323
        remove_arg_slots(_masm, -stack_move_unit() * array_slots,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2324
                         rax_argslot, rbx_temp, rdx_temp);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2325
        __ jmp(L_args_done);  // no spreading to do
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2326
        __ BIND(L_insert_arg_space);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2327
        // come here in the usual case, stack_move < 0 (2 or more spread arguments)
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2328
        Register rsi_temp = rsi_array;  // spill this
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2329
        insert_arg_slots(_masm, rdi_stack_move,
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2330
                         rax_argslot, rbx_temp, rsi_temp);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2331
        // reload the array since rsi was killed
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2332
        // reload from rdx_argslot_limit since rax_argslot is now decremented
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2333
        __ movptr(rsi_array, Address(rdx_argslot_limit, -Interpreter::stackElementSize));
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2334
      } else if (length_constant >= 1) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2335
        int new_slots = (length_constant * elem_slots) - array_slots;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2336
        insert_arg_slots(_masm, new_slots * stack_move_unit(),
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2337
                         rax_argslot, rbx_temp, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2338
      } else if (length_constant == 0) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2339
        __ BIND(L_array_is_empty);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2340
        remove_arg_slots(_masm, -stack_move_unit() * array_slots,
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2341
                         rax_argslot, rbx_temp, rdx_temp);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2342
      } else {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2343
        ShouldNotReachHere();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2344
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2345
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2346
      // Copy from the array to the new slots.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2347
      // Note: Stack change code preserves integrity of rax_argslot pointer.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2348
      // So even after slot insertions, rax_argslot still points to first argument.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2349
      // Beware:  Arguments that are shallow on the stack are deep in the array,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2350
      // and vice versa.  So a downward-growing stack (the usual) has to be copied
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2351
      // elementwise in reverse order from the source array.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2352
      __ BIND(L_copy_args);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2353
      if (length_constant == -1) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2354
        // [rax_argslot, rdx_argslot_limit) is the area we are inserting into.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2355
        // Array element [0] goes at rdx_argslot_limit[-wordSize].
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2356
        Register rsi_source = rsi_array;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2357
        __ lea(rsi_source, Address(rsi_array, elem0_offset));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2358
        Register rdx_fill_ptr = rdx_argslot_limit;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2359
        Label loop;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2360
        __ BIND(loop);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2361
        __ addptr(rdx_fill_ptr, -Interpreter::stackElementSize * elem_slots);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2362
        move_typed_arg(_masm, elem_type, true,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2363
                       Address(rdx_fill_ptr, 0), Address(rsi_source, 0),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2364
                       rbx_temp, rdi_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2365
        __ addptr(rsi_source, type2aelembytes(elem_type));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2366
        __ cmpptr(rdx_fill_ptr, rax_argslot);
9638
a9e79f5cd83b 6998541: JSR 292 implement missing return-type conversion for OP_RETYPE_RAW
twisti
parents: 9630
diff changeset
  2367
        __ jcc(Assembler::above, loop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2368
      } else if (length_constant == 0) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2369
        // nothing to copy
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2370
      } else {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2371
        int elem_offset = elem0_offset;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2372
        int slot_offset = length_constant * Interpreter::stackElementSize;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2373
        for (int index = 0; index < length_constant; index++) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2374
          slot_offset -= Interpreter::stackElementSize * elem_slots;  // fill backward
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2375
          move_typed_arg(_masm, elem_type, true,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2376
                         Address(rax_argslot, slot_offset), Address(rsi_array, elem_offset),
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2377
                         rbx_temp, rdi_temp);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2378
          elem_offset += type2aelembytes(elem_type);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2379
        }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2380
      }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2381
      __ BIND(L_args_done);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2382
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2383
      // Arguments are spread.  Move to next method handle.
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2384
      UNPUSH_RSI;
6772
2563324665d5 6829194: JSR 292 needs to support compressed oops
twisti
parents: 6744
diff changeset
  2385
      __ load_heap_oop(rcx_recv, rcx_mh_vmtarget);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2386
      __ jump_to_method_handle_entry(rcx_recv, rdx_temp);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2387
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2388
      __ bind(bad_array_klass);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2389
      UNPUSH_RSI;
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  2390
      assert(!vmarg.uses(rarg2_required), "must be different registers");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2391
      __ load_heap_oop( rarg2_required, Address(rdx_array_klass, java_mirror_offset));  // required type
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2392
      __ movptr(        rarg1_actual,   vmarg);                                         // bad array
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2393
      __ movl(          rarg0_code,     (int) Bytecodes::_aaload);                      // who is complaining?
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  2394
      __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2395
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2396
      __ bind(bad_array_length);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2397
      UNPUSH_RSI;
7712
cee30a0f4315 7007377: JSR 292 MethodHandlesTest.testCastFailure fails on SPARC with -Xcomp +DeoptimizeALot
twisti
parents: 7397
diff changeset
  2398
      assert(!vmarg.uses(rarg2_required), "must be different registers");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2399
      __ mov(    rarg2_required, rcx_recv);                       // AMH requiring a certain length
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2400
      __ movptr( rarg1_actual,   vmarg);                          // bad array
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2401
      __ movl(   rarg0_code,     (int) Bytecodes::_arraylength);  // who is complaining?
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3262
diff changeset
  2402
      __ jump(ExternalAddress(from_interpreted_entry(_raise_exception)));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2403
#undef UNPUSH_RSI
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2404
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2405
      break;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2406
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2407
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2408
  default:
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2409
    // do not require all platforms to recognize all adapter types
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2410
    __ nop();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
  2411
    return;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2412
  }
9976
6fef34e63df1 7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents: 9946
diff changeset
  2413
  BLOCK_COMMENT(err_msg("} Entry %s", entry_name(ek)));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2414
  __ hlt();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2415
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2416
  address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2417
  __ unimplemented(entry_name(ek)); // %%% FIXME: NYI
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2418
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2419
  init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
  2420
}