hotspot/src/cpu/x86/vm/methodHandles_x86.cpp
author coleenp
Sat, 01 Sep 2012 13:25:18 -0400
changeset 13728 882756847a04
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child 13743 154102966e74
permissions -rw-r--r--
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
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/*
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 * Copyright (c) 1997, 2012, 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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#define STOP(error) stop(error)
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#else
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#define BLOCK_COMMENT(str) __ block_comment(str)
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#define STOP(error) block_comment(error); __ stop(error)
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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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void MethodHandles::load_klass_from_Class(MacroAssembler* _masm, Register klass_reg) {
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  if (VerifyMethodHandles)
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    verify_klass(_masm, klass_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_Class),
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                 "MH argument is a Class");
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  __ movptr(klass_reg, Address(klass_reg, java_lang_Class::klass_offset_in_bytes()));
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}
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#ifdef ASSERT
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static int check_nonzero(const char* xname, int x) {
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  assert(x != 0, err_msg("%s should be nonzero", xname));
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  return x;
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}
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#define NONZERO(x) check_nonzero(#x, x)
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#else //ASSERT
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#define NONZERO(x) (x)
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#endif //ASSERT
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#ifdef ASSERT
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void MethodHandles::verify_klass(MacroAssembler* _masm,
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                                 Register obj, SystemDictionary::WKID klass_id,
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                                 const char* error_message) {
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  Klass** klass_addr = SystemDictionary::well_known_klass_addr(klass_id);
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  KlassHandle klass = SystemDictionary::well_known_klass(klass_id);
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  Register temp = rdi;
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  Register temp2 = noreg;
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  LP64_ONLY(temp2 = rscratch1);  // used by MacroAssembler::cmpptr
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  Label L_ok, L_bad;
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  BLOCK_COMMENT("verify_klass {");
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  __ verify_oop(obj);
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  __ testptr(obj, obj);
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  __ jcc(Assembler::zero, L_bad);
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  __ push(temp); if (temp2 != noreg)  __ push(temp2);
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#define UNPUSH { if (temp2 != noreg)  __ pop(temp2);  __ pop(temp); }
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  __ load_klass(temp, obj);
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  __ cmpptr(temp, ExternalAddress((address) klass_addr));
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  __ jcc(Assembler::equal, L_ok);
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  intptr_t super_check_offset = klass->super_check_offset();
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  __ movptr(temp, Address(temp, super_check_offset));
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  __ cmpptr(temp, ExternalAddress((address) klass_addr));
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  __ jcc(Assembler::equal, L_ok);
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  UNPUSH;
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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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  UNPUSH;
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  BLOCK_COMMENT("} verify_klass");
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}
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void MethodHandles::verify_ref_kind(MacroAssembler* _masm, int ref_kind, Register member_reg, Register temp) {
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  Label L;
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  BLOCK_COMMENT("verify_ref_kind {");
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  __ movl(temp, Address(member_reg, NONZERO(java_lang_invoke_MemberName::flags_offset_in_bytes())));
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  __ shrl(temp, java_lang_invoke_MemberName::MN_REFERENCE_KIND_SHIFT);
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  __ andl(temp, java_lang_invoke_MemberName::MN_REFERENCE_KIND_MASK);
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  __ cmpl(temp, ref_kind);
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  __ jcc(Assembler::equal, L);
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  { char* buf = NEW_C_HEAP_ARRAY(char, 100, mtInternal);
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    jio_snprintf(buf, 100, "verify_ref_kind expected %x", ref_kind);
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    if (ref_kind == JVM_REF_invokeVirtual ||
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        ref_kind == JVM_REF_invokeSpecial)
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      // could do this for all ref_kinds, but would explode assembly code size
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      trace_method_handle(_masm, buf);
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    __ STOP(buf);
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  }
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  BLOCK_COMMENT("} verify_ref_kind");
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  __ bind(L);
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}
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#endif //ASSERT
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void MethodHandles::jump_from_method_handle(MacroAssembler* _masm, Register method, Register temp,
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                                            bool for_compiler_entry) {
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  assert(method == rbx, "interpreter calling convention");
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  __ verify_oop(method);
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  if (!for_compiler_entry && JvmtiExport::can_post_interpreter_events()) {
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    Label run_compiled_code;
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    // JVMTI events, such as single-stepping, are implemented partly by avoiding running
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    // compiled code in threads for which the event is enabled.  Check here for
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    // interp_only_mode if these events CAN be enabled.
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#ifdef _LP64
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    Register rthread = r15_thread;
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#else
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    Register rthread = temp;
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    __ get_thread(rthread);
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#endif
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    // interp_only is an int, on little endian it is sufficient to test the byte only
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    // Is a cmpl faster?
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    __ cmpb(Address(rthread, JavaThread::interp_only_mode_offset()), 0);
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    __ jccb(Assembler::zero, run_compiled_code);
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    __ jmp(Address(method, Method::interpreter_entry_offset()));
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    __ BIND(run_compiled_code);
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  }
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  const ByteSize entry_offset = for_compiler_entry ? Method::from_compiled_offset() :
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                                                     Method::from_interpreted_offset();
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  __ jmp(Address(method, entry_offset));
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}
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void MethodHandles::jump_to_lambda_form(MacroAssembler* _masm,
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                                        Register recv, Register method_temp,
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                                        Register temp2,
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                                        bool for_compiler_entry) {
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  BLOCK_COMMENT("jump_to_lambda_form {");
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  // This is the initial entry point of a lazy method handle.
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  // After type checking, it picks up the invoker from the LambdaForm.
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  assert_different_registers(recv, method_temp, temp2);
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  assert(recv != noreg, "required register");
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  assert(method_temp == rbx, "required register for loading method");
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  //NOT_PRODUCT({ FlagSetting fs(TraceMethodHandles, true); trace_method_handle(_masm, "LZMH"); });
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  // Load the invoker, as MH -> MH.form -> LF.vmentry
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  __ verify_oop(recv);
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  __ load_heap_oop(method_temp, Address(recv, NONZERO(java_lang_invoke_MethodHandle::form_offset_in_bytes())));
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  __ verify_oop(method_temp);
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  __ load_heap_oop(method_temp, Address(method_temp, NONZERO(java_lang_invoke_LambdaForm::vmentry_offset_in_bytes())));
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  __ verify_oop(method_temp);
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  // the following assumes that a Method* is normally compressed in the vmtarget field:
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  __ movptr(method_temp, Address(method_temp, NONZERO(java_lang_invoke_MemberName::vmtarget_offset_in_bytes())));
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  if (VerifyMethodHandles && !for_compiler_entry) {
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    // make sure recv is already on stack
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    __ load_sized_value(temp2,
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                        Address(method_temp, Method::size_of_parameters_offset()),
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                        sizeof(u2), /*is_signed*/ false);
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    // assert(sizeof(u2) == sizeof(Method::_size_of_parameters), "");
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    Label L;
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    __ cmpptr(recv, __ argument_address(temp2, -1));
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    __ jcc(Assembler::equal, L);
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    __ movptr(rax, __ argument_address(temp2, -1));
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    __ STOP("receiver not on stack");
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    __ BIND(L);
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  }
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  jump_from_method_handle(_masm, method_temp, temp2, for_compiler_entry);
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  BLOCK_COMMENT("} jump_to_lambda_form");
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}
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// Code generation
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address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm,
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                                                                vmIntrinsics::ID iid) {
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  const bool not_for_compiler_entry = false;  // this is the interpreter entry
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  assert(is_signature_polymorphic(iid), "expected invoke iid");
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  if (iid == vmIntrinsics::_invokeGeneric ||
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      iid == vmIntrinsics::_compiledLambdaForm) {
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    // Perhaps surprisingly, the symbolic references visible to Java are not directly used.
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    // They are linked to Java-generated adapters via MethodHandleNatives.linkMethod.
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    // They all allow an appendix argument.
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    __ hlt();           // empty stubs make SG sick
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    return NULL;
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  }
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  // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted)
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  // rbx: Method*
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  // rdx: argument locator (parameter slot count, added to rsp)
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  // rcx: used as temp to hold mh or receiver
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  // rax, rdi: garbage temps, blown away
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  Register rdx_argp   = rdx;   // argument list ptr, live on error paths
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  Register rax_temp   = rax;
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  Register rcx_mh     = rcx;   // MH receiver; dies quickly and is recycled
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  Register rbx_method = rbx;   // eventual target of this invocation
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  address code_start = __ pc();
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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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  if (VerifyMethodHandles) {
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    Label L;
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    BLOCK_COMMENT("verify_intrinsic_id {");
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    __ cmpb(Address(rbx_method, Method::intrinsic_id_offset_in_bytes()), (int) iid);
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    __ jcc(Assembler::equal, L);
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   223
    if (iid == vmIntrinsics::_linkToVirtual ||
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        iid == vmIntrinsics::_linkToSpecial) {
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      // could do this for all kinds, but would explode assembly code size
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      trace_method_handle(_masm, "bad Method*::intrinsic_id");
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    }
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    __ STOP("bad Method*::intrinsic_id");
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   229
    __ bind(L);
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    BLOCK_COMMENT("} verify_intrinsic_id");
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  }
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   232
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  // First task:  Find out how big the argument list is.
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  Address rdx_first_arg_addr;
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  int ref_kind = signature_polymorphic_intrinsic_ref_kind(iid);
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   236
  assert(ref_kind != 0 || iid == vmIntrinsics::_invokeBasic, "must be _invokeBasic or a linkTo intrinsic");
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   237
  if (ref_kind == 0 || MethodHandles::ref_kind_has_receiver(ref_kind)) {
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   238
    __ load_sized_value(rdx_argp,
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                        Address(rbx_method, Method::size_of_parameters_offset()),
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                        sizeof(u2), /*is_signed*/ false);
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    // assert(sizeof(u2) == sizeof(Method::_size_of_parameters), "");
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    rdx_first_arg_addr = __ argument_address(rdx_argp, -1);
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   243
  } else {
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   244
    DEBUG_ONLY(rdx_argp = noreg);
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   245
  }
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   246
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   247
  if (!is_signature_polymorphic_static(iid)) {
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   248
    __ movptr(rcx_mh, rdx_first_arg_addr);
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    DEBUG_ONLY(rdx_argp = noreg);
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  }
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  // rdx_first_arg_addr is live!
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  if (TraceMethodHandles) {
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    const char* name = vmIntrinsics::name_at(iid);
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    if (*name == '_')  name += 1;
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    const size_t len = strlen(name) + 50;
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    char* qname = NEW_C_HEAP_ARRAY(char, len, mtInternal);
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    const char* suffix = "";
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    if (vmIntrinsics::method_for(iid) == NULL ||
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        !vmIntrinsics::method_for(iid)->access_flags().is_public()) {
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      if (is_signature_polymorphic_static(iid))
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        suffix = "/static";
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   264
      else
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        suffix = "/private";
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   266
    }
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    jio_snprintf(qname, len, "MethodHandle::interpreter_entry::%s%s", name, suffix);
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    // note: stub look for mh in rcx
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    trace_method_handle(_masm, qname);
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  }
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   271
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  if (iid == vmIntrinsics::_invokeBasic) {
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   273
    generate_method_handle_dispatch(_masm, iid, rcx_mh, noreg, not_for_compiler_entry);
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  } else {
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    // Adjust argument list by popping the trailing MemberName argument.
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    Register rcx_recv = noreg;
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   278
    if (MethodHandles::ref_kind_has_receiver(ref_kind)) {
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   279
      // Load the receiver (not the MH; the actual MemberName's receiver) up from the interpreter stack.
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   280
      __ movptr(rcx_recv = rcx, rdx_first_arg_addr);
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diff changeset
   281
    }
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   282
    DEBUG_ONLY(rdx_argp = noreg);
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   283
    Register rbx_member = rbx_method;  // MemberName ptr; incoming method ptr is dead now
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   284
    __ pop(rax_temp);           // return address
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diff changeset
   285
    __ pop(rbx_member);         // extract last argument
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   286
    __ push(rax_temp);          // re-push return address
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diff changeset
   287
    generate_method_handle_dispatch(_masm, iid, rcx_recv, rbx_member, not_for_compiler_entry);
6463
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   288
  }
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
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diff changeset
   289
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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   290
  if (PrintMethodHandleStubs) {
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diff changeset
   291
    address code_end = __ pc();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   292
    tty->print_cr("--------");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   293
    tty->print_cr("method handle interpreter entry for %s", vmIntrinsics::name_at(iid));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   294
    Disassembler::decode(code_start, code_end);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   295
    tty->cr();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 11783
diff changeset
   296
  }
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
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diff changeset
   297
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08dac9ce0cd7 6655638: dynamic languages need method handles
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   298
  return entry_point;
08dac9ce0cd7 6655638: dynamic languages need method handles
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parents:
diff changeset
   299
}
08dac9ce0cd7 6655638: dynamic languages need method handles
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parents:
diff changeset
   300
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   301
void MethodHandles::generate_method_handle_dispatch(MacroAssembler* _masm,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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   302
                                                    vmIntrinsics::ID iid,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   303
                                                    Register receiver_reg,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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   304
                                                    Register member_reg,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   305
                                                    bool for_compiler_entry) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   306
  assert(is_signature_polymorphic(iid), "expected invoke iid");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   307
  Register rbx_method = rbx;   // eventual target of this invocation
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   308
  // temps used in this code are not used in *either* compiled or interpreted calling sequences
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   309
#ifdef _LP64
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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   310
  Register temp1 = rscratch1;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   311
  Register temp2 = rscratch2;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   312
  Register temp3 = rax;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
   313
  if (for_compiler_entry) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   314
    assert(receiver_reg == (iid == vmIntrinsics::_linkToStatic ? noreg : j_rarg0), "only valid assignment");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   315
    assert_different_registers(temp1,        j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 11783
diff changeset
   316
    assert_different_registers(temp2,        j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 11783
diff changeset
   317
    assert_different_registers(temp3,        j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   318
  }
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 11783
diff changeset
   319
#else
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents: 11783
diff changeset
   320
  Register temp1 = (for_compiler_entry ? rsi : rdx);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   321
  Register temp2 = rdi;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   322
  Register temp3 = rax;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   323
  if (for_compiler_entry) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   324
    assert(receiver_reg == (iid == vmIntrinsics::_linkToStatic ? noreg : rcx), "only valid assignment");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   325
    assert_different_registers(temp1,        rcx, rdx);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   326
    assert_different_registers(temp2,        rcx, rdx);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   327
    assert_different_registers(temp3,        rcx, rdx);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   328
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   329
#endif
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   330
  assert_different_registers(temp1, temp2, temp3, receiver_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   331
  assert_different_registers(temp1, temp2, temp3, member_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   332
  if (!for_compiler_entry)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   333
    assert_different_registers(temp1, temp2, temp3, saved_last_sp_register());  // don't trash lastSP
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   334
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   335
  if (iid == vmIntrinsics::_invokeBasic) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   336
    // indirect through MH.form.vmentry.vmtarget
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   337
    jump_to_lambda_form(_masm, receiver_reg, rbx_method, temp1, for_compiler_entry);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   338
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   339
  } else {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   340
    // The method is a member invoker used by direct method handles.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   341
    if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   342
      // make sure the trailing argument really is a MemberName (caller responsibility)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   343
      verify_klass(_masm, member_reg, SystemDictionary::WK_KLASS_ENUM_NAME(java_lang_invoke_MemberName),
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   344
                   "MemberName required for invokeVirtual etc.");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   345
    }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   346
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   347
    Address member_clazz(    member_reg, NONZERO(java_lang_invoke_MemberName::clazz_offset_in_bytes()));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   348
    Address member_vmindex(  member_reg, NONZERO(java_lang_invoke_MemberName::vmindex_offset_in_bytes()));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   349
    Address member_vmtarget( member_reg, NONZERO(java_lang_invoke_MemberName::vmtarget_offset_in_bytes()));
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   350
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   351
    Register temp1_recv_klass = temp1;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   352
    if (iid != vmIntrinsics::_linkToStatic) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   353
      __ verify_oop(receiver_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   354
      if (iid == vmIntrinsics::_linkToSpecial) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   355
        // Don't actually load the klass; just null-check the receiver.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   356
        __ null_check(receiver_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   357
      } else {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   358
        // load receiver klass itself
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   359
        __ null_check(receiver_reg, oopDesc::klass_offset_in_bytes());
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   360
        __ load_klass(temp1_recv_klass, receiver_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   361
        __ verify_oop(temp1_recv_klass);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   362
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   363
      BLOCK_COMMENT("check_receiver {");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   364
      // The receiver for the MemberName must be in receiver_reg.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   365
      // Check the receiver against the MemberName.clazz
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   366
      if (VerifyMethodHandles && iid == vmIntrinsics::_linkToSpecial) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   367
        // Did not load it above...
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   368
        __ load_klass(temp1_recv_klass, receiver_reg);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   369
        __ verify_oop(temp1_recv_klass);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   370
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   371
      if (VerifyMethodHandles && iid != vmIntrinsics::_linkToInterface) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   372
        Label L_ok;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   373
        Register temp2_defc = temp2;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   374
        __ load_heap_oop(temp2_defc, member_clazz);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   375
        load_klass_from_Class(_masm, temp2_defc);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   376
        __ verify_oop(temp2_defc);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   377
        __ check_klass_subtype(temp1_recv_klass, temp2_defc, temp3, L_ok);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   378
        // If we get here, the type check failed!
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   379
        __ STOP("receiver class disagrees with MemberName.clazz");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   380
        __ bind(L_ok);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   381
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   382
      BLOCK_COMMENT("} check_receiver");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   383
    }
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   384
    if (iid == vmIntrinsics::_linkToSpecial ||
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   385
        iid == vmIntrinsics::_linkToStatic) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   386
      DEBUG_ONLY(temp1_recv_klass = noreg);  // these guys didn't load the recv_klass
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   387
    }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   388
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   389
    // Live registers at this point:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   390
    //  member_reg - MemberName that was the trailing argument
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   391
    //  temp1_recv_klass - klass of stacked receiver, if needed
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   392
    //  rsi/r13 - interpreter linkage (if interpreted)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   393
    //  rcx, rdx, rsi, rdi, r8, r8 - compiler arguments (if compiled)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   394
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   395
    bool method_is_live = false;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   396
    switch (iid) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   397
    case vmIntrinsics::_linkToSpecial:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   398
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   399
        verify_ref_kind(_masm, JVM_REF_invokeSpecial, member_reg, temp3);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   400
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   401
      __ movptr(rbx_method, member_vmtarget);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   402
      method_is_live = true;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   403
      break;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   404
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   405
    case vmIntrinsics::_linkToStatic:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   406
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   407
        verify_ref_kind(_masm, JVM_REF_invokeStatic, member_reg, temp3);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   408
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   409
      __ movptr(rbx_method, member_vmtarget);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   410
      method_is_live = true;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   411
      break;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   412
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   413
    case vmIntrinsics::_linkToVirtual:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   414
    {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   415
      // same as TemplateTable::invokevirtual,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   416
      // minus the CP setup and profiling:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   417
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   418
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   419
        verify_ref_kind(_masm, JVM_REF_invokeVirtual, member_reg, temp3);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   420
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   421
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   422
      // pick out the vtable index from the MemberName, and then we can discard it:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   423
      Register temp2_index = temp2;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   424
      __ movptr(temp2_index, member_vmindex);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   425
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   426
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   427
        Label L_index_ok;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   428
        __ cmpl(temp2_index, 0);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   429
        __ jcc(Assembler::greaterEqual, L_index_ok);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   430
        __ STOP("no virtual index");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   431
        __ BIND(L_index_ok);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   432
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   433
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   434
      // Note:  The verifier invariants allow us to ignore MemberName.clazz and vmtarget
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   435
      // at this point.  And VerifyMethodHandles has already checked clazz, if needed.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   436
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   437
      // get target Method* & entry point
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   438
      __ lookup_virtual_method(temp1_recv_klass, temp2_index, rbx_method);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   439
      method_is_live = true;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   440
      break;
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   441
    }
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   442
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   443
    case vmIntrinsics::_linkToInterface:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   444
    {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   445
      // same as TemplateTable::invokeinterface
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   446
      // (minus the CP setup and profiling, with different argument motion)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   447
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   448
        verify_ref_kind(_masm, JVM_REF_invokeInterface, member_reg, temp3);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   449
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   450
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   451
      Register temp3_intf = temp3;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   452
      __ load_heap_oop(temp3_intf, member_clazz);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   453
      load_klass_from_Class(_masm, temp3_intf);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   454
      __ verify_oop(temp3_intf);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   455
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   456
      Register rbx_index = rbx_method;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   457
      __ movptr(rbx_index, member_vmindex);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   458
      if (VerifyMethodHandles) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   459
        Label L;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   460
        __ cmpl(rbx_index, 0);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   461
        __ jcc(Assembler::greaterEqual, L);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   462
        __ STOP("invalid vtable index for MH.invokeInterface");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   463
        __ bind(L);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   464
      }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   465
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   466
      // given intf, index, and recv klass, dispatch to the implementation method
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   467
      Label L_no_such_interface;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   468
      __ lookup_interface_method(temp1_recv_klass, temp3_intf,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   469
                                 // note: next two args must be the same:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   470
                                 rbx_index, rbx_method,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   471
                                 temp2,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   472
                                 L_no_such_interface);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   473
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   474
      __ verify_oop(rbx_method);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   475
      jump_from_method_handle(_masm, rbx_method, temp2, for_compiler_entry);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   476
      __ hlt();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   477
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   478
      __ bind(L_no_such_interface);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   479
      __ jump(RuntimeAddress(StubRoutines::throw_IncompatibleClassChangeError_entry()));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   480
      break;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   481
    }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   482
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   483
    default:
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   484
      fatal(err_msg("unexpected intrinsic %d: %s", iid, vmIntrinsics::name_at(iid)));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   485
      break;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   486
    }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   487
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   488
    if (method_is_live) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   489
      // live at this point:  rbx_method, rsi/r13 (if interpreted)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   490
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   491
      // After figuring out which concrete method to call, jump into it.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   492
      // Note that this works in the interpreter with no data motion.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   493
      // But the compiled version will require that rcx_recv be shifted out.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   494
      __ verify_oop(rbx_method);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   495
      jump_from_method_handle(_masm, rbx_method, temp1, for_compiler_entry);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   496
    }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   497
  }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   498
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   499
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   500
#ifndef PRODUCT
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   501
void trace_method_handle_stub(const char* adaptername,
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   502
                              oop mh,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   503
                              intptr_t* saved_regs,
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   504
                              intptr_t* entry_sp) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   505
  // called as a leaf from native code: do not block the JVM!
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   506
  bool has_mh = (strstr(adaptername, "/static") == NULL &&
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   507
                 strstr(adaptername, "linkTo") == NULL);    // static linkers don't have MH
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   508
  const char* mh_reg_name = has_mh ? "rcx_mh" : "rcx";
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   509
  tty->print_cr("MH %s %s="PTR_FORMAT" sp="PTR_FORMAT,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   510
                adaptername, mh_reg_name,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   511
                mh, entry_sp);
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   512
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   513
  if (Verbose) {
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   514
    tty->print_cr("Registers:");
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   515
    const int saved_regs_count = RegisterImpl::number_of_registers;
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   516
    for (int i = 0; i < saved_regs_count; i++) {
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   517
      Register r = as_Register(i);
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   518
      // The registers are stored in reverse order on the stack (by pusha).
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   519
      tty->print("%3s=" PTR_FORMAT, r->name(), saved_regs[((saved_regs_count - 1) - i)]);
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   520
      if ((i + 1) % 4 == 0) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   521
        tty->cr();
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   522
      } else {
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   523
        tty->print(", ");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   524
      }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   525
    }
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   526
    tty->cr();
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   527
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   528
    {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   529
     // dumping last frame with frame::describe
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   530
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   531
      JavaThread* p = JavaThread::active();
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   532
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   533
      ResourceMark rm;
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   534
      PRESERVE_EXCEPTION_MARK; // may not be needed by safer and unexpensive here
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   535
      FrameValues values;
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   536
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   537
      // Note: We want to allow trace_method_handle from any call site.
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   538
      // While trace_method_handle creates a frame, it may be entered
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   539
      // without a PC on the stack top (e.g. not just after a call).
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   540
      // Walking that frame could lead to failures due to that invalid PC.
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   541
      // => carefully detect that frame when doing the stack walking
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   542
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   543
      // Current C frame
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   544
      frame cur_frame = os::current_frame();
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   545
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   546
      // Robust search of trace_calling_frame (independant of inlining).
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   547
      // Assumes saved_regs comes from a pusha in the trace_calling_frame.
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   548
      assert(cur_frame.sp() < saved_regs, "registers not saved on stack ?");
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   549
      frame trace_calling_frame = os::get_sender_for_C_frame(&cur_frame);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   550
      while (trace_calling_frame.fp() < saved_regs) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   551
        trace_calling_frame = os::get_sender_for_C_frame(&trace_calling_frame);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   552
      }
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   553
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   554
      // safely create a frame and call frame::describe
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   555
      intptr_t *dump_sp = trace_calling_frame.sender_sp();
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   556
      intptr_t *dump_fp = trace_calling_frame.link();
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   557
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   558
      bool walkable = has_mh; // whether the traced frame shoud be walkable
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   559
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   560
      if (walkable) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   561
        // The previous definition of walkable may have to be refined
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   562
        // if new call sites cause the next frame constructor to start
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   563
        // failing. Alternatively, frame constructors could be
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   564
        // modified to support the current or future non walkable
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   565
        // frames (but this is more intrusive and is not considered as
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   566
        // part of this RFE, which will instead use a simpler output).
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   567
        frame dump_frame = frame(dump_sp, dump_fp);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   568
        dump_frame.describe(values, 1);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   569
      } else {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   570
        // Stack may not be walkable (invalid PC above FP):
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   571
        // Add descriptions without building a Java frame to avoid issues
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   572
        values.describe(-1, dump_fp, "fp for #1 <not parsed, cannot trust pc>");
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   573
        values.describe(-1, dump_sp, "sp for #1");
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   574
      }
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   575
      values.describe(-1, entry_sp, "raw top of stack");
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   576
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   577
      tty->print_cr("Stack layout:");
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   578
      values.print(p);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   579
    }
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   580
    if (has_mh && mh->is_oop()) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   581
      mh->print();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   582
      if (java_lang_invoke_MethodHandle::is_instance(mh)) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   583
        if (java_lang_invoke_MethodHandle::form_offset_in_bytes() != 0)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   584
          java_lang_invoke_MethodHandle::form(mh)->print();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   585
      }
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 11783
diff changeset
   586
    }
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   587
  }
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   588
}
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   589
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   590
// 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
   591
// dealing with the different calling conventions for passing 6
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   592
// arguments.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   593
struct MethodHandleStubArguments {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   594
  const char* adaptername;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   595
  oopDesc* mh;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   596
  intptr_t* saved_regs;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   597
  intptr_t* entry_sp;
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   598
};
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   599
void trace_method_handle_stub_wrapper(MethodHandleStubArguments* args) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   600
  trace_method_handle_stub(args->adaptername,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   601
                           args->mh,
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   602
                           args->saved_regs,
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   603
                           args->entry_sp);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   604
}
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   605
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   606
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
   607
  if (!TraceMethodHandles)  return;
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   608
  BLOCK_COMMENT("trace_method_handle {");
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   609
  __ enter();
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   610
  __ andptr(rsp, -16); // align stack if needed for FPU state
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   611
  __ pusha();
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   612
  __ mov(rbx, rsp); // for retreiving saved_regs
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   613
  // Note: saved_regs must be in the entered frame for the
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   614
  // robust stack walking implemented in trace_method_handle_stub.
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   615
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   616
  // save FP result, valid at some call sites (adapter_opt_return_float, ...)
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   617
  __ increment(rsp, -2 * wordSize);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   618
  if  (UseSSE >= 2) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   619
    __ movdbl(Address(rsp, 0), xmm0);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   620
  } else if (UseSSE == 1) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   621
    __ movflt(Address(rsp, 0), xmm0);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   622
  } else {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   623
    __ fst_d(Address(rsp, 0));
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   624
  }
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   625
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   626
  // Incoming state:
9437
9981851b4b8c 7009361: JSR 292 Invalid value on stack on solaris-sparc with -Xcomp
never
parents: 8676
diff changeset
   627
  // rcx: method handle
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   628
  //
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   629
  // To avoid calling convention issues, build a record on the stack
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   630
  // and pass the pointer to that instead.
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   631
  __ push(rbp);               // entry_sp (with extra align space)
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   632
  __ push(rbx);               // pusha saved_regs
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   633
  __ push(rcx);               // mh
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   634
  __ push(rcx);               // slot for adaptername
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   635
  __ movptr(Address(rsp, 0), (intptr_t) adaptername);
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9437
diff changeset
   636
  __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub_wrapper), rsp);
11783
2b50fb0a7c0f 7141329: Strange values of stack_size in -XX:+TraceMethodHandles output
twisti
parents: 11638
diff changeset
   637
  __ increment(rsp, sizeof(MethodHandleStubArguments));
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   638
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   639
  if  (UseSSE >= 2) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   640
    __ movdbl(xmm0, Address(rsp, 0));
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   641
  } else if (UseSSE == 1) {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   642
    __ movflt(xmm0, Address(rsp, 0));
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   643
  } else {
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   644
    __ fld_d(Address(rsp, 0));
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   645
  }
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   646
  __ increment(rsp, 2 * wordSize);
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   647
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   648
  __ popa();
11571
23f825a42a85 7120468: SPARC/x86: use frame::describe to enhance trace_method_handle
bdelsart
parents: 11565
diff changeset
   649
  __ leave();
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 5547
diff changeset
   650
  BLOCK_COMMENT("} trace_method_handle");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   651
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents:
diff changeset
   652
#endif //PRODUCT