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Issue 1081883002: Remove unnecessary options from HTailCallThroughMegamorphicCache (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Ports. Created 5 years, 8 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #include "src/code-factory.h" 7 #include "src/code-factory.h"
8 #include "src/code-stubs.h" 8 #include "src/code-stubs.h"
9 #include "src/cpu-profiler.h" 9 #include "src/cpu-profiler.h"
10 #include "src/hydrogen-osr.h" 10 #include "src/hydrogen-osr.h"
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4003 Register name = ToRegister(instr->name()); 4003 Register name = ToRegister(instr->name());
4004 DCHECK(receiver.is(LoadDescriptor::ReceiverRegister())); 4004 DCHECK(receiver.is(LoadDescriptor::ReceiverRegister()));
4005 DCHECK(name.is(LoadDescriptor::NameRegister())); 4005 DCHECK(name.is(LoadDescriptor::NameRegister()));
4006 DCHECK(receiver.is(a1)); 4006 DCHECK(receiver.is(a1));
4007 DCHECK(name.is(a2)); 4007 DCHECK(name.is(a2));
4008 4008
4009 Register scratch = a4; 4009 Register scratch = a4;
4010 Register extra = a5; 4010 Register extra = a5;
4011 Register extra2 = a6; 4011 Register extra2 = a6;
4012 Register extra3 = t1; 4012 Register extra3 = t1;
4013 #ifdef DEBUG
4014 Register slot = FLAG_vector_ics ? ToRegister(instr->slot()) : no_reg;
4015 Register vector = FLAG_vector_ics ? ToRegister(instr->vector()) : no_reg;
4016 DCHECK(!FLAG_vector_ics ||
4017 !AreAliased(slot, vector, scratch, extra, extra2, extra3));
4018 #endif
4019 4013
4020 // Important for the tail-call. 4014 // The probe will tail call to a handler if found.
4021 bool must_teardown_frame = NeedsEagerFrame(); 4015 isolate()->stub_cache()->GenerateProbe(
4022 4016 masm(), Code::LOAD_IC, instr->hydrogen()->flags(), false, receiver, name,
4023 if (!instr->hydrogen()->is_just_miss()) { 4017 scratch, extra, extra2, extra3);
4024 DCHECK(!instr->hydrogen()->is_keyed_load());
4025
4026 // The probe will tail call to a handler if found.
4027 isolate()->stub_cache()->GenerateProbe(
4028 masm(), Code::LOAD_IC, instr->hydrogen()->flags(), must_teardown_frame,
4029 receiver, name, scratch, extra, extra2, extra3);
4030 }
4031 4018
4032 // Tail call to miss if we ended up here. 4019 // Tail call to miss if we ended up here.
4033 if (must_teardown_frame) __ LeaveFrame(StackFrame::INTERNAL); 4020 LoadIC::GenerateMiss(masm());
4034 if (instr->hydrogen()->is_keyed_load()) {
4035 KeyedLoadIC::GenerateMiss(masm());
4036 } else {
4037 LoadIC::GenerateMiss(masm());
4038 }
4039 } 4021 }
4040 4022
4041 4023
4042 void LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) { 4024 void LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) {
4043 DCHECK(ToRegister(instr->result()).is(v0)); 4025 DCHECK(ToRegister(instr->result()).is(v0));
4044 4026
4045 if (instr->hydrogen()->IsTailCall()) { 4027 if (instr->hydrogen()->IsTailCall()) {
4046 if (NeedsEagerFrame()) __ LeaveFrame(StackFrame::INTERNAL); 4028 if (NeedsEagerFrame()) __ LeaveFrame(StackFrame::INTERNAL);
4047 4029
4048 if (instr->target()->IsConstantOperand()) { 4030 if (instr->target()->IsConstantOperand()) {
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6040 __ li(at, scope_info); 6022 __ li(at, scope_info);
6041 __ Push(at, ToRegister(instr->function())); 6023 __ Push(at, ToRegister(instr->function()));
6042 CallRuntime(Runtime::kPushBlockContext, 2, instr); 6024 CallRuntime(Runtime::kPushBlockContext, 2, instr);
6043 RecordSafepoint(Safepoint::kNoLazyDeopt); 6025 RecordSafepoint(Safepoint::kNoLazyDeopt);
6044 } 6026 }
6045 6027
6046 6028
6047 #undef __ 6029 #undef __
6048 6030
6049 } } // namespace v8::internal 6031 } } // namespace v8::internal
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