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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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2872 } | 2872 } |
2873 | 2873 |
2874 __ Jump(ra); | 2874 __ Jump(ra); |
2875 | 2875 |
2876 if (no_frame_start != -1) { | 2876 if (no_frame_start != -1) { |
2877 info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); | 2877 info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); |
2878 } | 2878 } |
2879 } | 2879 } |
2880 | 2880 |
2881 | 2881 |
2882 void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) { | |
2883 Register result = ToRegister(instr->result()); | |
2884 __ li(at, Operand(Handle<Object>(instr->hydrogen()->cell().handle()))); | |
2885 __ ld(result, FieldMemOperand(at, Cell::kValueOffset)); | |
2886 if (instr->hydrogen()->RequiresHoleCheck()) { | |
2887 __ LoadRoot(at, Heap::kTheHoleValueRootIndex); | |
2888 DeoptimizeIf(eq, instr, Deoptimizer::kHole, result, Operand(at)); | |
2889 } | |
2890 } | |
2891 | |
2892 | |
2893 template <class T> | 2882 template <class T> |
2894 void LCodeGen::EmitVectorLoadICRegisters(T* instr) { | 2883 void LCodeGen::EmitVectorLoadICRegisters(T* instr) { |
2895 DCHECK(FLAG_vector_ics); | 2884 DCHECK(FLAG_vector_ics); |
2896 Register vector_register = ToRegister(instr->temp_vector()); | 2885 Register vector_register = ToRegister(instr->temp_vector()); |
2897 Register slot_register = VectorLoadICDescriptor::SlotRegister(); | 2886 Register slot_register = VectorLoadICDescriptor::SlotRegister(); |
2898 DCHECK(vector_register.is(VectorLoadICDescriptor::VectorRegister())); | 2887 DCHECK(vector_register.is(VectorLoadICDescriptor::VectorRegister())); |
2899 DCHECK(slot_register.is(a0)); | 2888 DCHECK(slot_register.is(a0)); |
2900 | 2889 |
2901 AllowDeferredHandleDereference vector_structure_check; | 2890 AllowDeferredHandleDereference vector_structure_check; |
2902 Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); | 2891 Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector(); |
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2918 if (FLAG_vector_ics) { | 2907 if (FLAG_vector_ics) { |
2919 EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr); | 2908 EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr); |
2920 } | 2909 } |
2921 ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL; | 2910 ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL; |
2922 Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode, | 2911 Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode, |
2923 PREMONOMORPHIC).code(); | 2912 PREMONOMORPHIC).code(); |
2924 CallCode(ic, RelocInfo::CODE_TARGET, instr); | 2913 CallCode(ic, RelocInfo::CODE_TARGET, instr); |
2925 } | 2914 } |
2926 | 2915 |
2927 | 2916 |
2928 void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) { | |
2929 Register value = ToRegister(instr->value()); | |
2930 Register cell = scratch0(); | |
2931 | |
2932 // Load the cell. | |
2933 __ li(cell, Operand(instr->hydrogen()->cell().handle())); | |
2934 | |
2935 // If the cell we are storing to contains the hole it could have | |
2936 // been deleted from the property dictionary. In that case, we need | |
2937 // to update the property details in the property dictionary to mark | |
2938 // it as no longer deleted. | |
2939 if (instr->hydrogen()->RequiresHoleCheck()) { | |
2940 // We use a temp to check the payload. | |
2941 Register payload = ToRegister(instr->temp()); | |
2942 __ ld(payload, FieldMemOperand(cell, Cell::kValueOffset)); | |
2943 __ LoadRoot(at, Heap::kTheHoleValueRootIndex); | |
2944 DeoptimizeIf(eq, instr, Deoptimizer::kHole, payload, Operand(at)); | |
2945 } | |
2946 | |
2947 // Store the value. | |
2948 __ sd(value, FieldMemOperand(cell, Cell::kValueOffset)); | |
2949 // Cells are always rescanned, so no write barrier here. | |
2950 } | |
2951 | |
2952 | |
2953 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { | 2917 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) { |
2954 Register context = ToRegister(instr->context()); | 2918 Register context = ToRegister(instr->context()); |
2955 Register result = ToRegister(instr->result()); | 2919 Register result = ToRegister(instr->result()); |
2956 | 2920 |
2957 __ ld(result, ContextOperand(context, instr->slot_index())); | 2921 __ ld(result, ContextOperand(context, instr->slot_index())); |
2958 if (instr->hydrogen()->RequiresHoleCheck()) { | 2922 if (instr->hydrogen()->RequiresHoleCheck()) { |
2959 __ LoadRoot(at, Heap::kTheHoleValueRootIndex); | 2923 __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
2960 | 2924 |
2961 if (instr->hydrogen()->DeoptimizesOnHole()) { | 2925 if (instr->hydrogen()->DeoptimizesOnHole()) { |
2962 DeoptimizeIf(eq, instr, Deoptimizer::kHole, result, Operand(at)); | 2926 DeoptimizeIf(eq, instr, Deoptimizer::kHole, result, Operand(at)); |
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6053 __ li(at, scope_info); | 6017 __ li(at, scope_info); |
6054 __ Push(at, ToRegister(instr->function())); | 6018 __ Push(at, ToRegister(instr->function())); |
6055 CallRuntime(Runtime::kPushBlockContext, 2, instr); | 6019 CallRuntime(Runtime::kPushBlockContext, 2, instr); |
6056 RecordSafepoint(Safepoint::kNoLazyDeopt); | 6020 RecordSafepoint(Safepoint::kNoLazyDeopt); |
6057 } | 6021 } |
6058 | 6022 |
6059 | 6023 |
6060 #undef __ | 6024 #undef __ |
6061 | 6025 |
6062 } } // namespace v8::internal | 6026 } } // namespace v8::internal |
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