author | acorn |
Fri, 26 Mar 2010 11:10:26 -0400 | |
changeset 5095 | 06b1faf0df9c |
parent 5055 | 743f38c6e179 |
child 5416 | 5f6377fcfd3e |
permissions | -rw-r--r-- |
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/* |
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* Copyright 1997-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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* |
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*/ |
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#include "incls/_precompiled.incl" |
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#include "incls/_methodHandles_x86.cpp.incl" |
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#define __ _masm-> |
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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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#ifdef ASSERT |
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static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, |
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const char* error_message) { |
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// Verify that argslot lies within (rsp, rbp]. |
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Label L_ok, L_bad; |
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__ cmpptr(argslot_reg, rbp); |
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__ jccb(Assembler::above, L_bad); |
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__ cmpptr(rsp, argslot_reg); |
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__ jccb(Assembler::below, L_ok); |
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__ bind(L_bad); |
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__ stop(error_message); |
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__ bind(L_ok); |
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} |
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#endif |
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// Code generation |
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address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { |
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// rbx: methodOop |
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// rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
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// rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
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// rdx: garbage temp, blown away |
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Register rbx_method = rbx; |
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Register rcx_recv = rcx; |
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Register rax_mtype = rax; |
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Register rdx_temp = rdx; |
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// emit WrongMethodType path first, to enable jccb back-branch from main path |
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Label wrong_method_type; |
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__ bind(wrong_method_type); |
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__ push(rax_mtype); // required mtype |
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__ push(rcx_recv); // bad mh (1st stacked argument) |
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__ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
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// here's where control starts out: |
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__ align(CodeEntryAlignment); |
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address entry_point = __ pc(); |
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// fetch the MethodType from the method handle into rax (the 'check' register) |
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{ |
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Register tem = rbx_method; |
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for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { |
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__ movptr(rax_mtype, Address(tem, *pchase)); |
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tem = rax_mtype; // in case there is another indirection |
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} |
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} |
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Register rbx_temp = rbx_method; // done with incoming methodOop |
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// given the MethodType, find out where the MH argument is buried |
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__ movptr(rdx_temp, Address(rax_mtype, |
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__ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rbx_temp))); |
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__ movl(rdx_temp, Address(rdx_temp, |
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__ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, rbx_temp))); |
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__ movptr(rcx_recv, __ argument_address(rdx_temp)); |
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__ check_method_handle_type(rax_mtype, rcx_recv, rdx_temp, wrong_method_type); |
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__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
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return entry_point; |
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} |
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// Helper to insert argument slots into the stack. |
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// arg_slots must be a multiple of stack_move_unit() and <= 0 |
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void MethodHandles::insert_arg_slots(MacroAssembler* _masm, |
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RegisterOrConstant arg_slots, |
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int arg_mask, |
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Register rax_argslot, |
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Register rbx_temp, Register rdx_temp) { |
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assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
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(!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
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#ifdef ASSERT |
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verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame"); |
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if (arg_slots.is_register()) { |
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Label L_ok, L_bad; |
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__ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
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__ jccb(Assembler::greater, L_bad); |
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__ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
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__ jccb(Assembler::zero, L_ok); |
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__ bind(L_bad); |
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__ stop("assert arg_slots <= 0 and clear low bits"); |
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__ bind(L_ok); |
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} else { |
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assert(arg_slots.as_constant() <= 0, ""); |
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assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
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} |
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#endif //ASSERT |
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#ifdef _LP64 |
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if (arg_slots.is_register()) { |
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// clean high bits of stack motion register (was loaded as an int) |
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__ movslq(arg_slots.as_register(), arg_slots.as_register()); |
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} |
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#endif |
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// Make space on the stack for the inserted argument(s). |
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// Then pull down everything shallower than rax_argslot. |
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// The stacked return address gets pulled down with everything else. |
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// That is, copy [rsp, argslot) downward by -size words. In pseudo-code: |
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// rsp -= size; |
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// for (rdx = rsp + size; rdx < argslot; rdx++) |
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// rdx[-size] = rdx[0] |
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// argslot -= size; |
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__ mov(rdx_temp, rsp); // source pointer for copy |
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__ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
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{ |
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Label loop; |
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__ bind(loop); |
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// pull one word down each time through the loop |
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__ movptr(rbx_temp, Address(rdx_temp, 0)); |
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__ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
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__ addptr(rdx_temp, wordSize); |
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__ cmpptr(rdx_temp, rax_argslot); |
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__ jccb(Assembler::less, loop); |
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} |
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// Now move the argslot down, to point to the opened-up space. |
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__ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
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} |
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// Helper to remove argument slots from the stack. |
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// arg_slots must be a multiple of stack_move_unit() and >= 0 |
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void MethodHandles::remove_arg_slots(MacroAssembler* _masm, |
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RegisterOrConstant arg_slots, |
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Register rax_argslot, |
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Register rbx_temp, Register rdx_temp) { |
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assert_different_registers(rax_argslot, rbx_temp, rdx_temp, |
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(!arg_slots.is_register() ? rsp : arg_slots.as_register())); |
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#ifdef ASSERT |
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// Verify that [argslot..argslot+size) lies within (rsp, rbp). |
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__ lea(rbx_temp, Address(rax_argslot, arg_slots, Address::times_ptr)); |
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verify_argslot(_masm, rbx_temp, "deleted argument(s) must fall within current frame"); |
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if (arg_slots.is_register()) { |
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Label L_ok, L_bad; |
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__ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); |
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__ jccb(Assembler::less, L_bad); |
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__ testl(arg_slots.as_register(), -stack_move_unit() - 1); |
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__ jccb(Assembler::zero, L_ok); |
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__ bind(L_bad); |
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__ stop("assert arg_slots >= 0 and clear low bits"); |
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__ bind(L_ok); |
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} else { |
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assert(arg_slots.as_constant() >= 0, ""); |
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assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); |
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} |
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#endif //ASSERT |
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#ifdef _LP64 |
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if (false) { // not needed, since register is positive |
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// clean high bits of stack motion register (was loaded as an int) |
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if (arg_slots.is_register()) |
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__ movslq(arg_slots.as_register(), arg_slots.as_register()); |
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} |
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#endif |
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// Pull up everything shallower than rax_argslot. |
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// Then remove the excess space on the stack. |
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// The stacked return address gets pulled up with everything else. |
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// That is, copy [rsp, argslot) upward by size words. In pseudo-code: |
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// for (rdx = argslot-1; rdx >= rsp; --rdx) |
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// rdx[size] = rdx[0] |
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// argslot += size; |
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// rsp += size; |
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__ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy |
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{ |
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Label loop; |
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__ bind(loop); |
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// pull one word up each time through the loop |
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__ movptr(rbx_temp, Address(rdx_temp, 0)); |
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__ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); |
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__ addptr(rdx_temp, -wordSize); |
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__ cmpptr(rdx_temp, rsp); |
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__ jccb(Assembler::greaterEqual, loop); |
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} |
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// Now move the argslot up, to point to the just-copied block. |
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__ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); |
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// And adjust the argslot address to point at the deletion point. |
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__ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); |
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} |
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#ifndef PRODUCT |
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extern "C" void print_method_handle(oop mh); |
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void trace_method_handle_stub(const char* adaptername, |
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oop mh, |
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intptr_t* entry_sp, |
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intptr_t* saved_sp, |
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intptr_t* saved_bp) { |
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// called as a leaf from native code: do not block the JVM! |
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intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; |
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intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; |
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printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", |
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adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); |
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if (last_sp != saved_sp) |
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printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); |
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if (Verbose) print_method_handle(mh); |
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} |
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#endif //PRODUCT |
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262 |
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// Generate an "entry" field for a method handle. |
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// This determines how the method handle will respond to calls. |
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void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
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// Here is the register state during an interpreted call, |
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// as set up by generate_method_handle_interpreter_entry(): |
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// - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) |
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// - rcx: receiver method handle |
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// - rax: method handle type (only used by the check_mtype entry point) |
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// - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) |
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// - rdx: garbage temp, can blow away |
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Register rcx_recv = rcx; |
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Register rax_argslot = rax; |
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Register rbx_temp = rbx; |
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Register rdx_temp = rdx; |
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// This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls) |
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// and gen_c2i_adapter (from compiled calls): |
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Register saved_last_sp = LP64_ONLY(r13) NOT_LP64(rsi); |
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guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
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// some handy addresses |
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Address rbx_method_fie( rbx, methodOopDesc::from_interpreted_offset() ); |
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Address rcx_mh_vmtarget( rcx_recv, java_dyn_MethodHandle::vmtarget_offset_in_bytes() ); |
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Address rcx_dmh_vmindex( rcx_recv, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes() ); |
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Address rcx_bmh_vmargslot( rcx_recv, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes() ); |
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Address rcx_bmh_argument( rcx_recv, sun_dyn_BoundMethodHandle::argument_offset_in_bytes() ); |
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Address rcx_amh_vmargslot( rcx_recv, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes() ); |
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Address rcx_amh_argument( rcx_recv, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes() ); |
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Address rcx_amh_conversion( rcx_recv, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes() ); |
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Address vmarg; // __ argument_address(vmargslot) |
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const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); |
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if (have_entry(ek)) { |
302 |
__ nop(); // empty stubs make SG sick |
|
303 |
return; |
|
304 |
} |
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305 |
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306 |
address interp_entry = __ pc(); |
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307 |
if (UseCompressedOops) __ unimplemented("UseCompressedOops"); |
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308 |
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#ifndef PRODUCT |
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310 |
if (TraceMethodHandles) { |
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311 |
__ push(rax); __ push(rbx); __ push(rcx); __ push(rdx); __ push(rsi); __ push(rdi); |
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__ lea(rax, Address(rsp, wordSize*6)); // entry_sp |
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// arguments: |
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|
314 |
__ push(rbp); // interpreter frame pointer |
2534 | 315 |
__ push(rsi); // saved_sp |
316 |
__ push(rax); // entry_sp |
|
317 |
__ push(rcx); // mh |
|
318 |
__ push(rcx); |
|
319 |
__ movptr(Address(rsp, 0), (intptr_t)entry_name(ek)); |
|
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320 |
__ call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub), 5); |
2534 | 321 |
__ pop(rdi); __ pop(rsi); __ pop(rdx); __ pop(rcx); __ pop(rbx); __ pop(rax); |
322 |
} |
|
323 |
#endif //PRODUCT |
|
324 |
||
325 |
switch ((int) ek) { |
|
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326 |
case _raise_exception: |
2534 | 327 |
{ |
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328 |
// Not a real MH entry, but rather shared code for raising an exception. |
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|
329 |
// Extra local arguments are pushed on stack, as required type at TOS+8, |
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330 |
// failing object (or NULL) at TOS+4, failing bytecode type at TOS. |
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|
331 |
// Beyond those local arguments are the PC, of course. |
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|
332 |
Register rdx_code = rdx_temp; |
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|
333 |
Register rcx_fail = rcx_recv; |
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|
334 |
Register rax_want = rax_argslot; |
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|
335 |
Register rdi_pc = rdi; |
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|
336 |
__ pop(rdx_code); // TOS+0 |
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|
337 |
__ pop(rcx_fail); // TOS+4 |
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|
338 |
__ pop(rax_want); // TOS+8 |
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|
339 |
__ pop(rdi_pc); // caller PC |
2534 | 340 |
|
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|
341 |
__ mov(rsp, rsi); // cut the stack back to where the caller started |
2534 | 342 |
|
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|
343 |
// Repush the arguments as if coming from the interpreter. |
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|
344 |
__ push(rdx_code); |
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|
345 |
__ push(rcx_fail); |
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|
346 |
__ push(rax_want); |
2534 | 347 |
|
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|
348 |
Register rbx_method = rbx_temp; |
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|
349 |
Label no_method; |
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|
350 |
// FIXME: fill in _raise_exception_method with a suitable sun.dyn method |
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|
351 |
__ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method)); |
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|
352 |
__ testptr(rbx_method, rbx_method); |
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353 |
__ jccb(Assembler::zero, no_method); |
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|
354 |
int jobject_oop_offset = 0; |
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|
355 |
__ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject |
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|
356 |
__ testptr(rbx_method, rbx_method); |
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|
357 |
__ jccb(Assembler::zero, no_method); |
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|
358 |
__ verify_oop(rbx_method); |
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|
359 |
__ push(rdi_pc); // and restore caller PC |
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|
360 |
__ jmp(rbx_method_fie); |
2534 | 361 |
|
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|
362 |
// If we get here, the Java runtime did not do its job of creating the exception. |
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|
363 |
// Do something that is at least causes a valid throw from the interpreter. |
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|
364 |
__ bind(no_method); |
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|
365 |
__ pop(rax_want); |
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|
366 |
__ pop(rcx_fail); |
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|
367 |
__ push(rax_want); |
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|
368 |
__ push(rcx_fail); |
2534 | 369 |
__ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); |
370 |
} |
|
371 |
break; |
|
372 |
||
373 |
case _invokestatic_mh: |
|
374 |
case _invokespecial_mh: |
|
375 |
{ |
|
376 |
Register rbx_method = rbx_temp; |
|
377 |
__ movptr(rbx_method, rcx_mh_vmtarget); // target is a methodOop |
|
378 |
__ verify_oop(rbx_method); |
|
379 |
// same as TemplateTable::invokestatic or invokespecial, |
|
380 |
// minus the CP setup and profiling: |
|
381 |
if (ek == _invokespecial_mh) { |
|
382 |
// Must load & check the first argument before entering the target method. |
|
383 |
__ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
|
384 |
__ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
|
385 |
__ null_check(rcx_recv); |
|
386 |
__ verify_oop(rcx_recv); |
|
387 |
} |
|
388 |
__ jmp(rbx_method_fie); |
|
389 |
} |
|
390 |
break; |
|
391 |
||
392 |
case _invokevirtual_mh: |
|
393 |
{ |
|
394 |
// same as TemplateTable::invokevirtual, |
|
395 |
// minus the CP setup and profiling: |
|
396 |
||
397 |
// pick out the vtable index and receiver offset from the MH, |
|
398 |
// and then we can discard it: |
|
399 |
__ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
|
400 |
Register rbx_index = rbx_temp; |
|
401 |
__ movl(rbx_index, rcx_dmh_vmindex); |
|
402 |
// Note: The verifier allows us to ignore rcx_mh_vmtarget. |
|
403 |
__ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
|
404 |
__ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
|
405 |
||
406 |
// get receiver klass |
|
407 |
Register rax_klass = rax_argslot; |
|
408 |
__ load_klass(rax_klass, rcx_recv); |
|
409 |
__ verify_oop(rax_klass); |
|
410 |
||
411 |
// get target methodOop & entry point |
|
412 |
const int base = instanceKlass::vtable_start_offset() * wordSize; |
|
413 |
assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); |
|
414 |
Address vtable_entry_addr(rax_klass, |
|
415 |
rbx_index, Address::times_ptr, |
|
416 |
base + vtableEntry::method_offset_in_bytes()); |
|
417 |
Register rbx_method = rbx_temp; |
|
4478 | 418 |
__ movptr(rbx_method, vtable_entry_addr); |
2534 | 419 |
|
420 |
__ verify_oop(rbx_method); |
|
421 |
__ jmp(rbx_method_fie); |
|
422 |
} |
|
423 |
break; |
|
424 |
||
425 |
case _invokeinterface_mh: |
|
426 |
{ |
|
427 |
// same as TemplateTable::invokeinterface, |
|
428 |
// minus the CP setup and profiling: |
|
429 |
||
430 |
// pick out the interface and itable index from the MH. |
|
431 |
__ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); |
|
432 |
Register rdx_intf = rdx_temp; |
|
433 |
Register rbx_index = rbx_temp; |
|
434 |
__ movptr(rdx_intf, rcx_mh_vmtarget); |
|
435 |
__ movl(rbx_index, rcx_dmh_vmindex); |
|
436 |
__ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); |
|
437 |
__ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); |
|
438 |
||
439 |
// get receiver klass |
|
440 |
Register rax_klass = rax_argslot; |
|
441 |
__ load_klass(rax_klass, rcx_recv); |
|
442 |
__ verify_oop(rax_klass); |
|
443 |
||
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|
444 |
Register rdi_temp = rdi; |
2534 | 445 |
Register rbx_method = rbx_index; |
446 |
||
447 |
// get interface klass |
|
448 |
Label no_such_interface; |
|
449 |
__ verify_oop(rdx_intf); |
|
450 |
__ lookup_interface_method(rax_klass, rdx_intf, |
|
451 |
// note: next two args must be the same: |
|
452 |
rbx_index, rbx_method, |
|
4094
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|
453 |
rdi_temp, |
2534 | 454 |
no_such_interface); |
455 |
||
456 |
__ verify_oop(rbx_method); |
|
457 |
__ jmp(rbx_method_fie); |
|
458 |
__ hlt(); |
|
459 |
||
460 |
__ bind(no_such_interface); |
|
461 |
// Throw an exception. |
|
462 |
// For historical reasons, it will be IncompatibleClassChangeError. |
|
4094
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|
463 |
__ pushptr(Address(rdx_intf, java_mirror_offset)); // required interface |
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|
464 |
__ push(rcx_recv); // bad receiver |
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|
465 |
__ push((int)Bytecodes::_invokeinterface); // who is complaining? |
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|
466 |
__ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
2534 | 467 |
} |
468 |
break; |
|
469 |
||
470 |
case _bound_ref_mh: |
|
471 |
case _bound_int_mh: |
|
472 |
case _bound_long_mh: |
|
473 |
case _bound_ref_direct_mh: |
|
474 |
case _bound_int_direct_mh: |
|
475 |
case _bound_long_direct_mh: |
|
476 |
{ |
|
477 |
bool direct_to_method = (ek >= _bound_ref_direct_mh); |
|
5055 | 478 |
BasicType arg_type = T_ILLEGAL; |
479 |
int arg_mask = _INSERT_NO_MASK; |
|
480 |
int arg_slots = -1; |
|
481 |
get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); |
|
2534 | 482 |
|
483 |
// make room for the new argument: |
|
484 |
__ movl(rax_argslot, rcx_bmh_vmargslot); |
|
485 |
__ lea(rax_argslot, __ argument_address(rax_argslot)); |
|
486 |
insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, |
|
487 |
rax_argslot, rbx_temp, rdx_temp); |
|
488 |
||
489 |
// store bound argument into the new stack slot: |
|
490 |
__ movptr(rbx_temp, rcx_bmh_argument); |
|
491 |
Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type)); |
|
492 |
if (arg_type == T_OBJECT) { |
|
493 |
__ movptr(Address(rax_argslot, 0), rbx_temp); |
|
494 |
} else { |
|
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|
495 |
__ load_sized_value(rdx_temp, prim_value_addr, |
2534 | 496 |
type2aelembytes(arg_type), is_signed_subword_type(arg_type)); |
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|
497 |
__ movptr(Address(rax_argslot, 0), rdx_temp); |
2534 | 498 |
#ifndef _LP64 |
499 |
if (arg_slots == 2) { |
|
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|
500 |
__ movl(rdx_temp, prim_value_addr.plus_disp(wordSize)); |
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|
501 |
__ movl(Address(rax_argslot, Interpreter::stackElementSize()), rdx_temp); |
2534 | 502 |
} |
503 |
#endif //_LP64 |
|
504 |
} |
|
505 |
||
506 |
if (direct_to_method) { |
|
507 |
Register rbx_method = rbx_temp; |
|
508 |
__ movptr(rbx_method, rcx_mh_vmtarget); |
|
509 |
__ verify_oop(rbx_method); |
|
510 |
__ jmp(rbx_method_fie); |
|
511 |
} else { |
|
512 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
513 |
__ verify_oop(rcx_recv); |
|
514 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
515 |
} |
|
516 |
} |
|
517 |
break; |
|
518 |
||
519 |
case _adapter_retype_only: |
|
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|
520 |
case _adapter_retype_raw: |
2534 | 521 |
// immediately jump to the next MH layer: |
522 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
523 |
__ verify_oop(rcx_recv); |
|
524 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
525 |
// This is OK when all parameter types widen. |
|
526 |
// It is also OK when a return type narrows. |
|
527 |
break; |
|
528 |
||
529 |
case _adapter_check_cast: |
|
530 |
{ |
|
531 |
// temps: |
|
532 |
Register rbx_klass = rbx_temp; // interesting AMH data |
|
533 |
||
534 |
// check a reference argument before jumping to the next layer of MH: |
|
535 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
536 |
vmarg = __ argument_address(rax_argslot); |
|
537 |
||
538 |
// What class are we casting to? |
|
539 |
__ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
|
540 |
__ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
|
541 |
||
542 |
Label done; |
|
543 |
__ movptr(rdx_temp, vmarg); |
|
5028 | 544 |
__ testptr(rdx_temp, rdx_temp); |
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|
545 |
__ jccb(Assembler::zero, done); // no cast if null |
2534 | 546 |
__ load_klass(rdx_temp, rdx_temp); |
547 |
||
548 |
// live at this point: |
|
549 |
// - rbx_klass: klass required by the target method |
|
550 |
// - rdx_temp: argument klass to test |
|
4094
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|
551 |
// - rcx_recv: adapter method handle |
2534 | 552 |
__ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done); |
553 |
||
554 |
// If we get here, the type check failed! |
|
555 |
// Call the wrong_method_type stub, passing the failing argument type in rax. |
|
556 |
Register rax_mtype = rax_argslot; |
|
4094
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|
557 |
__ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field |
1f424b2b2171
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|
558 |
__ movptr(rdx_temp, vmarg); |
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changeset
|
559 |
|
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|
560 |
__ pushptr(rcx_amh_argument); // required class |
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changeset
|
561 |
__ push(rdx_temp); // bad object |
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|
562 |
__ push((int)Bytecodes::_checkcast); // who is complaining? |
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|
563 |
__ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
2534 | 564 |
|
565 |
__ bind(done); |
|
4094
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|
566 |
// get the new MH: |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
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3262
diff
changeset
|
567 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
2534 | 568 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
569 |
} |
|
570 |
break; |
|
571 |
||
572 |
case _adapter_prim_to_prim: |
|
573 |
case _adapter_ref_to_prim: |
|
574 |
// handled completely by optimized cases |
|
575 |
__ stop("init_AdapterMethodHandle should not issue this"); |
|
576 |
break; |
|
577 |
||
578 |
case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim |
|
579 |
//case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim |
|
580 |
case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim |
|
581 |
case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim |
|
582 |
{ |
|
583 |
// perform an in-place conversion to int or an int subword |
|
584 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
585 |
vmarg = __ argument_address(rax_argslot); |
|
586 |
||
587 |
switch (ek) { |
|
588 |
case _adapter_opt_i2i: |
|
589 |
__ movl(rdx_temp, vmarg); |
|
590 |
break; |
|
591 |
case _adapter_opt_l2i: |
|
592 |
{ |
|
593 |
// just delete the extra slot; on a little-endian machine we keep the first |
|
594 |
__ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
|
595 |
remove_arg_slots(_masm, -stack_move_unit(), |
|
596 |
rax_argslot, rbx_temp, rdx_temp); |
|
597 |
vmarg = Address(rax_argslot, -Interpreter::stackElementSize()); |
|
598 |
__ movl(rdx_temp, vmarg); |
|
599 |
} |
|
600 |
break; |
|
601 |
case _adapter_opt_unboxi: |
|
602 |
{ |
|
603 |
// Load the value up from the heap. |
|
604 |
__ movptr(rdx_temp, vmarg); |
|
605 |
int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); |
|
606 |
#ifdef ASSERT |
|
607 |
for (int bt = T_BOOLEAN; bt < T_INT; bt++) { |
|
608 |
if (is_subword_type(BasicType(bt))) |
|
609 |
assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); |
|
610 |
} |
|
611 |
#endif |
|
612 |
__ null_check(rdx_temp, value_offset); |
|
613 |
__ movl(rdx_temp, Address(rdx_temp, value_offset)); |
|
614 |
// We load this as a word. Because we are little-endian, |
|
615 |
// the low bits will be correct, but the high bits may need cleaning. |
|
616 |
// The vminfo will guide us to clean those bits. |
|
617 |
} |
|
618 |
break; |
|
619 |
default: |
|
5055 | 620 |
ShouldNotReachHere(); |
2534 | 621 |
} |
622 |
||
5055 | 623 |
// Do the requested conversion and store the value. |
2534 | 624 |
Register rbx_vminfo = rbx_temp; |
625 |
__ movl(rbx_vminfo, rcx_amh_conversion); |
|
626 |
assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
|
627 |
||
628 |
// get the new MH: |
|
629 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
630 |
// (now we are done with the old MH) |
|
631 |
||
632 |
// original 32-bit vmdata word must be of this form: |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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diff
changeset
|
633 |
// | 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
|
634 |
__ xchgptr(rcx, rbx_vminfo); // free rcx for shifts |
2534 | 635 |
__ shll(rdx_temp /*, rcx*/); |
636 |
Label zero_extend, done; |
|
637 |
__ testl(rcx, CONV_VMINFO_SIGN_FLAG); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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parents:
4562
diff
changeset
|
638 |
__ jccb(Assembler::zero, zero_extend); |
2534 | 639 |
|
640 |
// this path is taken for int->byte, int->short |
|
641 |
__ sarl(rdx_temp /*, rcx*/); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
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diff
changeset
|
642 |
__ jmpb(done); |
2534 | 643 |
|
644 |
__ bind(zero_extend); |
|
645 |
// this is taken for int->char |
|
646 |
__ shrl(rdx_temp /*, rcx*/); |
|
647 |
||
648 |
__ bind(done); |
|
5055 | 649 |
__ 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
|
650 |
__ xchgptr(rcx, rbx_vminfo); // restore rcx_recv |
2534 | 651 |
|
652 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
653 |
} |
|
654 |
break; |
|
655 |
||
656 |
case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim |
|
657 |
case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim |
|
658 |
{ |
|
659 |
// perform an in-place int-to-long or ref-to-long conversion |
|
660 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
661 |
||
662 |
// on a little-endian machine we keep the first slot and add another after |
|
663 |
__ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
|
664 |
insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
|
665 |
rax_argslot, rbx_temp, rdx_temp); |
|
666 |
Address vmarg1(rax_argslot, -Interpreter::stackElementSize()); |
|
667 |
Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize()); |
|
668 |
||
669 |
switch (ek) { |
|
670 |
case _adapter_opt_i2l: |
|
671 |
{ |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
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parents:
5028
diff
changeset
|
672 |
#ifdef _LP64 |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
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parents:
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diff
changeset
|
673 |
__ movslq(rdx_temp, vmarg1); // Load sign-extended |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
674 |
__ movq(vmarg1, rdx_temp); // Store into first slot |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
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diff
changeset
|
675 |
#else |
2534 | 676 |
__ movl(rdx_temp, vmarg1); |
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
677 |
__ sarl(rdx_temp, BitsPerInt - 1); // __ extend_sign() |
2534 | 678 |
__ movl(vmarg2, rdx_temp); // store second word |
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
679 |
#endif |
2534 | 680 |
} |
681 |
break; |
|
682 |
case _adapter_opt_unboxl: |
|
683 |
{ |
|
684 |
// Load the value up from the heap. |
|
685 |
__ movptr(rdx_temp, vmarg1); |
|
686 |
int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); |
|
687 |
assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); |
|
688 |
__ null_check(rdx_temp, value_offset); |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
689 |
#ifdef _LP64 |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
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parents:
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diff
changeset
|
690 |
__ movq(rbx_temp, Address(rdx_temp, value_offset)); |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
691 |
__ movq(vmarg1, rbx_temp); |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
692 |
#else |
2534 | 693 |
__ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt)); |
694 |
__ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt)); |
|
695 |
__ movl(vmarg1, rbx_temp); |
|
696 |
__ movl(vmarg2, rdx_temp); |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
697 |
#endif |
2534 | 698 |
} |
699 |
break; |
|
700 |
default: |
|
5055 | 701 |
ShouldNotReachHere(); |
2534 | 702 |
} |
703 |
||
704 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
705 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
706 |
} |
|
707 |
break; |
|
708 |
||
709 |
case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim |
|
710 |
case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim |
|
711 |
{ |
|
712 |
// perform an in-place floating primitive conversion |
|
713 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
714 |
__ lea(rax_argslot, __ argument_address(rax_argslot, 1)); |
|
715 |
if (ek == _adapter_opt_f2d) { |
|
716 |
insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, |
|
717 |
rax_argslot, rbx_temp, rdx_temp); |
|
718 |
} |
|
719 |
Address vmarg(rax_argslot, -Interpreter::stackElementSize()); |
|
720 |
||
721 |
#ifdef _LP64 |
|
722 |
if (ek == _adapter_opt_f2d) { |
|
723 |
__ movflt(xmm0, vmarg); |
|
724 |
__ cvtss2sd(xmm0, xmm0); |
|
725 |
__ movdbl(vmarg, xmm0); |
|
726 |
} else { |
|
727 |
__ movdbl(xmm0, vmarg); |
|
728 |
__ cvtsd2ss(xmm0, xmm0); |
|
729 |
__ movflt(vmarg, xmm0); |
|
730 |
} |
|
731 |
#else //_LP64 |
|
732 |
if (ek == _adapter_opt_f2d) { |
|
733 |
__ fld_s(vmarg); // load float to ST0 |
|
734 |
__ fstp_s(vmarg); // store single |
|
5055 | 735 |
} else { |
2534 | 736 |
__ fld_d(vmarg); // load double to ST0 |
737 |
__ fstp_s(vmarg); // store single |
|
738 |
} |
|
739 |
#endif //_LP64 |
|
740 |
||
741 |
if (ek == _adapter_opt_d2f) { |
|
742 |
remove_arg_slots(_masm, -stack_move_unit(), |
|
743 |
rax_argslot, rbx_temp, rdx_temp); |
|
744 |
} |
|
745 |
||
746 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
747 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
748 |
} |
|
749 |
break; |
|
750 |
||
751 |
case _adapter_prim_to_ref: |
|
752 |
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
|
753 |
break; |
|
754 |
||
755 |
case _adapter_swap_args: |
|
756 |
case _adapter_rot_args: |
|
757 |
// handled completely by optimized cases |
|
758 |
__ stop("init_AdapterMethodHandle should not issue this"); |
|
759 |
break; |
|
760 |
||
761 |
case _adapter_opt_swap_1: |
|
762 |
case _adapter_opt_swap_2: |
|
763 |
case _adapter_opt_rot_1_up: |
|
764 |
case _adapter_opt_rot_1_down: |
|
765 |
case _adapter_opt_rot_2_up: |
|
766 |
case _adapter_opt_rot_2_down: |
|
767 |
{ |
|
5055 | 768 |
int swap_bytes = 0, rotate = 0; |
769 |
get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); |
|
2534 | 770 |
|
771 |
// 'argslot' is the position of the first argument to swap |
|
772 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
773 |
__ lea(rax_argslot, __ argument_address(rax_argslot)); |
|
774 |
||
775 |
// 'vminfo' is the second |
|
776 |
Register rbx_destslot = rbx_temp; |
|
777 |
__ movl(rbx_destslot, rcx_amh_conversion); |
|
778 |
assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
|
779 |
__ andl(rbx_destslot, CONV_VMINFO_MASK); |
|
780 |
__ lea(rbx_destslot, __ argument_address(rbx_destslot)); |
|
781 |
DEBUG_ONLY(verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame")); |
|
782 |
||
783 |
if (!rotate) { |
|
784 |
for (int i = 0; i < swap_bytes; i += wordSize) { |
|
785 |
__ movptr(rdx_temp, Address(rax_argslot , i)); |
|
786 |
__ push(rdx_temp); |
|
787 |
__ movptr(rdx_temp, Address(rbx_destslot, i)); |
|
788 |
__ movptr(Address(rax_argslot, i), rdx_temp); |
|
789 |
__ pop(rdx_temp); |
|
790 |
__ movptr(Address(rbx_destslot, i), rdx_temp); |
|
791 |
} |
|
792 |
} else { |
|
793 |
// push the first chunk, which is going to get overwritten |
|
794 |
for (int i = swap_bytes; (i -= wordSize) >= 0; ) { |
|
795 |
__ movptr(rdx_temp, Address(rax_argslot, i)); |
|
796 |
__ push(rdx_temp); |
|
797 |
} |
|
798 |
||
799 |
if (rotate > 0) { |
|
800 |
// rotate upward |
|
801 |
__ subptr(rax_argslot, swap_bytes); |
|
802 |
#ifdef ASSERT |
|
803 |
{ |
|
804 |
// Verify that argslot > destslot, by at least swap_bytes. |
|
805 |
Label L_ok; |
|
806 |
__ cmpptr(rax_argslot, rbx_destslot); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
807 |
__ jccb(Assembler::aboveEqual, L_ok); |
2534 | 808 |
__ stop("source must be above destination (upward rotation)"); |
809 |
__ bind(L_ok); |
|
810 |
} |
|
811 |
#endif |
|
812 |
// work argslot down to destslot, copying contiguous data upwards |
|
813 |
// pseudo-code: |
|
814 |
// rax = src_addr - swap_bytes |
|
815 |
// rbx = dest_addr |
|
816 |
// while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--; |
|
817 |
Label loop; |
|
818 |
__ bind(loop); |
|
819 |
__ movptr(rdx_temp, Address(rax_argslot, 0)); |
|
820 |
__ movptr(Address(rax_argslot, swap_bytes), rdx_temp); |
|
821 |
__ addptr(rax_argslot, -wordSize); |
|
822 |
__ cmpptr(rax_argslot, rbx_destslot); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
823 |
__ jccb(Assembler::aboveEqual, loop); |
2534 | 824 |
} else { |
825 |
__ addptr(rax_argslot, swap_bytes); |
|
826 |
#ifdef ASSERT |
|
827 |
{ |
|
828 |
// Verify that argslot < destslot, by at least swap_bytes. |
|
829 |
Label L_ok; |
|
830 |
__ cmpptr(rax_argslot, rbx_destslot); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
831 |
__ jccb(Assembler::belowEqual, L_ok); |
2534 | 832 |
__ stop("source must be below destination (downward rotation)"); |
833 |
__ bind(L_ok); |
|
834 |
} |
|
835 |
#endif |
|
836 |
// work argslot up to destslot, copying contiguous data downwards |
|
837 |
// pseudo-code: |
|
838 |
// rax = src_addr + swap_bytes |
|
839 |
// rbx = dest_addr |
|
840 |
// while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++; |
|
841 |
Label loop; |
|
842 |
__ bind(loop); |
|
843 |
__ movptr(rdx_temp, Address(rax_argslot, 0)); |
|
844 |
__ movptr(Address(rax_argslot, -swap_bytes), rdx_temp); |
|
845 |
__ addptr(rax_argslot, wordSize); |
|
846 |
__ cmpptr(rax_argslot, rbx_destslot); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
847 |
__ jccb(Assembler::belowEqual, loop); |
2534 | 848 |
} |
849 |
||
850 |
// pop the original first chunk into the destination slot, now free |
|
851 |
for (int i = 0; i < swap_bytes; i += wordSize) { |
|
852 |
__ pop(rdx_temp); |
|
853 |
__ movptr(Address(rbx_destslot, i), rdx_temp); |
|
854 |
} |
|
855 |
} |
|
856 |
||
857 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
858 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
859 |
} |
|
860 |
break; |
|
861 |
||
862 |
case _adapter_dup_args: |
|
863 |
{ |
|
864 |
// 'argslot' is the position of the first argument to duplicate |
|
865 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
866 |
__ lea(rax_argslot, __ argument_address(rax_argslot)); |
|
867 |
||
868 |
// 'stack_move' is negative number of words to duplicate |
|
869 |
Register rdx_stack_move = rdx_temp; |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
870 |
__ movl2ptr(rdx_stack_move, rcx_amh_conversion); |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
871 |
__ sarptr(rdx_stack_move, CONV_STACK_MOVE_SHIFT); |
2534 | 872 |
|
873 |
int argslot0_num = 0; |
|
874 |
Address argslot0 = __ argument_address(RegisterOrConstant(argslot0_num)); |
|
875 |
assert(argslot0.base() == rsp, ""); |
|
876 |
int pre_arg_size = argslot0.disp(); |
|
877 |
assert(pre_arg_size % wordSize == 0, ""); |
|
878 |
assert(pre_arg_size > 0, "must include PC"); |
|
879 |
||
880 |
// remember the old rsp+1 (argslot[0]) |
|
881 |
Register rbx_oldarg = rbx_temp; |
|
882 |
__ lea(rbx_oldarg, argslot0); |
|
883 |
||
884 |
// move rsp down to make room for dups |
|
885 |
__ lea(rsp, Address(rsp, rdx_stack_move, Address::times_ptr)); |
|
886 |
||
887 |
// compute the new rsp+1 (argslot[0]) |
|
888 |
Register rdx_newarg = rdx_temp; |
|
889 |
__ lea(rdx_newarg, argslot0); |
|
890 |
||
891 |
__ push(rdi); // need a temp |
|
892 |
// (preceding push must be done after arg addresses are taken!) |
|
893 |
||
894 |
// pull down the pre_arg_size data (PC) |
|
895 |
for (int i = -pre_arg_size; i < 0; i += wordSize) { |
|
896 |
__ movptr(rdi, Address(rbx_oldarg, i)); |
|
897 |
__ movptr(Address(rdx_newarg, i), rdi); |
|
898 |
} |
|
899 |
||
900 |
// copy from rax_argslot[0...] down to new_rsp[1...] |
|
901 |
// pseudo-code: |
|
902 |
// rbx = old_rsp+1 |
|
903 |
// rdx = new_rsp+1 |
|
904 |
// rax = argslot |
|
905 |
// while (rdx < rbx) *rdx++ = *rax++ |
|
906 |
Label loop; |
|
907 |
__ bind(loop); |
|
908 |
__ movptr(rdi, Address(rax_argslot, 0)); |
|
909 |
__ movptr(Address(rdx_newarg, 0), rdi); |
|
910 |
__ addptr(rax_argslot, wordSize); |
|
911 |
__ addptr(rdx_newarg, wordSize); |
|
912 |
__ cmpptr(rdx_newarg, rbx_oldarg); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
913 |
__ jccb(Assembler::less, loop); |
2534 | 914 |
|
915 |
__ pop(rdi); // restore temp |
|
916 |
||
917 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
918 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
919 |
} |
|
920 |
break; |
|
921 |
||
922 |
case _adapter_drop_args: |
|
923 |
{ |
|
924 |
// 'argslot' is the position of the first argument to nuke |
|
925 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
926 |
__ lea(rax_argslot, __ argument_address(rax_argslot)); |
|
927 |
||
928 |
__ push(rdi); // need a temp |
|
929 |
// (must do previous push after argslot address is taken) |
|
930 |
||
931 |
// 'stack_move' is number of words to drop |
|
932 |
Register rdi_stack_move = rdi; |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
933 |
__ movl2ptr(rdi_stack_move, rcx_amh_conversion); |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
934 |
__ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
2534 | 935 |
remove_arg_slots(_masm, rdi_stack_move, |
936 |
rax_argslot, rbx_temp, rdx_temp); |
|
937 |
||
938 |
__ pop(rdi); // restore temp |
|
939 |
||
940 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
941 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
942 |
} |
|
943 |
break; |
|
944 |
||
945 |
case _adapter_collect_args: |
|
946 |
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
|
947 |
break; |
|
948 |
||
949 |
case _adapter_spread_args: |
|
950 |
// handled completely by optimized cases |
|
951 |
__ stop("init_AdapterMethodHandle should not issue this"); |
|
952 |
break; |
|
953 |
||
954 |
case _adapter_opt_spread_0: |
|
955 |
case _adapter_opt_spread_1: |
|
956 |
case _adapter_opt_spread_more: |
|
957 |
{ |
|
958 |
// spread an array out into a group of arguments |
|
5055 | 959 |
int length_constant = get_ek_adapter_opt_spread_info(ek); |
2534 | 960 |
|
961 |
// find the address of the array argument |
|
962 |
__ movl(rax_argslot, rcx_amh_vmargslot); |
|
963 |
__ lea(rax_argslot, __ argument_address(rax_argslot)); |
|
964 |
||
965 |
// grab some temps |
|
966 |
{ __ push(rsi); __ push(rdi); } |
|
967 |
// (preceding pushes must be done after argslot address is taken!) |
|
968 |
#define UNPUSH_RSI_RDI \ |
|
969 |
{ __ pop(rdi); __ pop(rsi); } |
|
970 |
||
971 |
// arx_argslot points both to the array and to the first output arg |
|
972 |
vmarg = Address(rax_argslot, 0); |
|
973 |
||
974 |
// Get the array value. |
|
975 |
Register rsi_array = rsi; |
|
976 |
Register rdx_array_klass = rdx_temp; |
|
977 |
BasicType elem_type = T_OBJECT; |
|
978 |
int length_offset = arrayOopDesc::length_offset_in_bytes(); |
|
979 |
int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); |
|
980 |
__ movptr(rsi_array, vmarg); |
|
981 |
Label skip_array_check; |
|
982 |
if (length_constant == 0) { |
|
983 |
__ testptr(rsi_array, rsi_array); |
|
984 |
__ jcc(Assembler::zero, skip_array_check); |
|
985 |
} |
|
986 |
__ null_check(rsi_array, oopDesc::klass_offset_in_bytes()); |
|
987 |
__ load_klass(rdx_array_klass, rsi_array); |
|
988 |
||
989 |
// Check the array type. |
|
990 |
Register rbx_klass = rbx_temp; |
|
991 |
__ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! |
|
992 |
__ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); |
|
993 |
||
994 |
Label ok_array_klass, bad_array_klass, bad_array_length; |
|
995 |
__ check_klass_subtype(rdx_array_klass, rbx_klass, rdi, ok_array_klass); |
|
996 |
// If we get here, the type check failed! |
|
997 |
__ jmp(bad_array_klass); |
|
998 |
__ bind(ok_array_klass); |
|
999 |
||
1000 |
// Check length. |
|
1001 |
if (length_constant >= 0) { |
|
1002 |
__ cmpl(Address(rsi_array, length_offset), length_constant); |
|
1003 |
} else { |
|
1004 |
Register rbx_vminfo = rbx_temp; |
|
1005 |
__ movl(rbx_vminfo, rcx_amh_conversion); |
|
1006 |
assert(CONV_VMINFO_SHIFT == 0, "preshifted"); |
|
1007 |
__ andl(rbx_vminfo, CONV_VMINFO_MASK); |
|
1008 |
__ cmpl(rbx_vminfo, Address(rsi_array, length_offset)); |
|
1009 |
} |
|
1010 |
__ jcc(Assembler::notEqual, bad_array_length); |
|
1011 |
||
1012 |
Register rdx_argslot_limit = rdx_temp; |
|
1013 |
||
1014 |
// Array length checks out. Now insert any required stack slots. |
|
1015 |
if (length_constant == -1) { |
|
1016 |
// Form a pointer to the end of the affected region. |
|
1017 |
__ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize())); |
|
1018 |
// 'stack_move' is negative number of words to insert |
|
1019 |
Register rdi_stack_move = rdi; |
|
5044
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
1020 |
__ movl2ptr(rdi_stack_move, rcx_amh_conversion); |
7e40acdf2163
6932536: JSR 292 modified JDK MethodHandlesTest fails on x86_64
twisti
parents:
5028
diff
changeset
|
1021 |
__ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); |
2534 | 1022 |
Register rsi_temp = rsi_array; // spill this |
1023 |
insert_arg_slots(_masm, rdi_stack_move, -1, |
|
1024 |
rax_argslot, rbx_temp, rsi_temp); |
|
1025 |
// reload the array (since rsi was killed) |
|
1026 |
__ movptr(rsi_array, vmarg); |
|
1027 |
} else if (length_constant > 1) { |
|
1028 |
int arg_mask = 0; |
|
1029 |
int new_slots = (length_constant - 1); |
|
1030 |
for (int i = 0; i < new_slots; i++) { |
|
1031 |
arg_mask <<= 1; |
|
1032 |
arg_mask |= _INSERT_REF_MASK; |
|
1033 |
} |
|
1034 |
insert_arg_slots(_masm, new_slots * stack_move_unit(), arg_mask, |
|
1035 |
rax_argslot, rbx_temp, rdx_temp); |
|
1036 |
} else if (length_constant == 1) { |
|
1037 |
// no stack resizing required |
|
1038 |
} else if (length_constant == 0) { |
|
1039 |
remove_arg_slots(_masm, -stack_move_unit(), |
|
1040 |
rax_argslot, rbx_temp, rdx_temp); |
|
1041 |
} |
|
1042 |
||
1043 |
// Copy from the array to the new slots. |
|
1044 |
// Note: Stack change code preserves integrity of rax_argslot pointer. |
|
1045 |
// So even after slot insertions, rax_argslot still points to first argument. |
|
1046 |
if (length_constant == -1) { |
|
1047 |
// [rax_argslot, rdx_argslot_limit) is the area we are inserting into. |
|
1048 |
Register rsi_source = rsi_array; |
|
1049 |
__ lea(rsi_source, Address(rsi_array, elem0_offset)); |
|
1050 |
Label loop; |
|
1051 |
__ bind(loop); |
|
1052 |
__ movptr(rbx_temp, Address(rsi_source, 0)); |
|
1053 |
__ movptr(Address(rax_argslot, 0), rbx_temp); |
|
1054 |
__ addptr(rsi_source, type2aelembytes(elem_type)); |
|
1055 |
__ addptr(rax_argslot, Interpreter::stackElementSize()); |
|
1056 |
__ cmpptr(rax_argslot, rdx_argslot_limit); |
|
4564
55dfb20908d0
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
4562
diff
changeset
|
1057 |
__ jccb(Assembler::less, loop); |
2534 | 1058 |
} else if (length_constant == 0) { |
1059 |
__ bind(skip_array_check); |
|
1060 |
// nothing to copy |
|
1061 |
} else { |
|
1062 |
int elem_offset = elem0_offset; |
|
1063 |
int slot_offset = 0; |
|
1064 |
for (int index = 0; index < length_constant; index++) { |
|
1065 |
__ movptr(rbx_temp, Address(rsi_array, elem_offset)); |
|
1066 |
__ movptr(Address(rax_argslot, slot_offset), rbx_temp); |
|
1067 |
elem_offset += type2aelembytes(elem_type); |
|
5095 | 1068 |
slot_offset += Interpreter::stackElementSize(); |
2534 | 1069 |
} |
1070 |
} |
|
1071 |
||
1072 |
// Arguments are spread. Move to next method handle. |
|
1073 |
UNPUSH_RSI_RDI; |
|
1074 |
__ movptr(rcx_recv, rcx_mh_vmtarget); |
|
1075 |
__ jump_to_method_handle_entry(rcx_recv, rdx_temp); |
|
1076 |
||
1077 |
__ bind(bad_array_klass); |
|
1078 |
UNPUSH_RSI_RDI; |
|
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1079 |
__ pushptr(Address(rdx_array_klass, java_mirror_offset)); // required type |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1080 |
__ pushptr(vmarg); // bad array |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1081 |
__ push((int)Bytecodes::_aaload); // who is complaining? |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1082 |
__ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
2534 | 1083 |
|
1084 |
__ bind(bad_array_length); |
|
1085 |
UNPUSH_RSI_RDI; |
|
4094
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1086 |
__ push(rcx_recv); // AMH requiring a certain length |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1087 |
__ pushptr(vmarg); // bad array |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1088 |
__ push((int)Bytecodes::_arraylength); // who is complaining? |
1f424b2b2171
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
3262
diff
changeset
|
1089 |
__ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); |
2534 | 1090 |
|
1091 |
#undef UNPUSH_RSI_RDI |
|
1092 |
} |
|
1093 |
break; |
|
1094 |
||
1095 |
case _adapter_flyby: |
|
1096 |
case _adapter_ricochet: |
|
1097 |
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
|
1098 |
break; |
|
1099 |
||
1100 |
default: ShouldNotReachHere(); |
|
1101 |
} |
|
1102 |
__ hlt(); |
|
1103 |
||
1104 |
address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); |
|
1105 |
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI |
|
1106 |
||
1107 |
init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); |
|
1108 |
} |