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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 #if V8_TARGET_ARCH_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
| 6 | 6 |
| 7 #include "src/full-codegen/full-codegen.h" | 7 #include "src/full-codegen/full-codegen.h" |
| 8 #include "src/ast/compile-time-value.h" | 8 #include "src/ast/compile-time-value.h" |
| 9 #include "src/ast/scopes.h" | 9 #include "src/ast/scopes.h" |
| 10 #include "src/code-factory.h" | 10 #include "src/code-factory.h" |
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| 948 // it to a JS receiver. See ECMA-262 version 5, section 12.6.4. | 948 // it to a JS receiver. See ECMA-262 version 5, section 12.6.4. |
| 949 Label convert, done_convert; | 949 Label convert, done_convert; |
| 950 __ JumpIfSmi(eax, &convert, Label::kNear); | 950 __ JumpIfSmi(eax, &convert, Label::kNear); |
| 951 __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); | 951 __ CmpObjectType(eax, FIRST_JS_RECEIVER_TYPE, ecx); |
| 952 __ j(above_equal, &done_convert, Label::kNear); | 952 __ j(above_equal, &done_convert, Label::kNear); |
| 953 __ cmp(eax, isolate()->factory()->undefined_value()); | 953 __ cmp(eax, isolate()->factory()->undefined_value()); |
| 954 __ j(equal, &exit); | 954 __ j(equal, &exit); |
| 955 __ cmp(eax, isolate()->factory()->null_value()); | 955 __ cmp(eax, isolate()->factory()->null_value()); |
| 956 __ j(equal, &exit); | 956 __ j(equal, &exit); |
| 957 __ bind(&convert); | 957 __ bind(&convert); |
| 958 ToObjectStub stub(isolate()); | 958 __ Call(isolate()->builtins()->ToObject(), RelocInfo::CODE_TARGET); |
| 959 __ CallStub(&stub); | |
| 960 RestoreContext(); | 959 RestoreContext(); |
| 961 __ bind(&done_convert); | 960 __ bind(&done_convert); |
| 962 PrepareForBailoutForId(stmt->ToObjectId(), BailoutState::TOS_REGISTER); | 961 PrepareForBailoutForId(stmt->ToObjectId(), BailoutState::TOS_REGISTER); |
| 963 __ push(eax); | 962 __ push(eax); |
| 964 | 963 |
| 965 // Check cache validity in generated code. If we cannot guarantee cache | 964 // Check cache validity in generated code. If we cannot guarantee cache |
| 966 // validity, call the runtime system to check cache validity or get the | 965 // validity, call the runtime system to check cache validity or get the |
| 967 // property names in a fixed array. Note: Proxies never have an enum cache, | 966 // property names in a fixed array. Note: Proxies never have an enum cache, |
| 968 // so will always take the slow path. | 967 // so will always take the slow path. |
| 969 Label call_runtime, use_cache, fixed_array; | 968 Label call_runtime, use_cache, fixed_array; |
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| 1038 __ cmp(edx, FieldOperand(ebx, HeapObject::kMapOffset)); | 1037 __ cmp(edx, FieldOperand(ebx, HeapObject::kMapOffset)); |
| 1039 __ j(equal, &update_each, Label::kNear); | 1038 __ j(equal, &update_each, Label::kNear); |
| 1040 | 1039 |
| 1041 // We need to filter the key, record slow-path here. | 1040 // We need to filter the key, record slow-path here. |
| 1042 int const vector_index = SmiFromSlot(slot)->value(); | 1041 int const vector_index = SmiFromSlot(slot)->value(); |
| 1043 __ EmitLoadTypeFeedbackVector(edx); | 1042 __ EmitLoadTypeFeedbackVector(edx); |
| 1044 __ mov(FieldOperand(edx, FixedArray::OffsetOfElementAt(vector_index)), | 1043 __ mov(FieldOperand(edx, FixedArray::OffsetOfElementAt(vector_index)), |
| 1045 Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate()))); | 1044 Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate()))); |
| 1046 | 1045 |
| 1047 // eax contains the key. The receiver in ebx is the second argument to the | 1046 // eax contains the key. The receiver in ebx is the second argument to the |
| 1048 // ForInFilterStub. ForInFilter returns undefined if the receiver doesn't | 1047 // ForInFilter. ForInFilter returns undefined if the receiver doesn't |
| 1049 // have the key or returns the name-converted key. | 1048 // have the key or returns the name-converted key. |
| 1050 ForInFilterStub filter_stub(isolate()); | 1049 __ Call(isolate()->builtins()->ForInFilter(), RelocInfo::CODE_TARGET); |
| 1051 __ CallStub(&filter_stub); | |
| 1052 RestoreContext(); | 1050 RestoreContext(); |
| 1053 PrepareForBailoutForId(stmt->FilterId(), BailoutState::TOS_REGISTER); | 1051 PrepareForBailoutForId(stmt->FilterId(), BailoutState::TOS_REGISTER); |
| 1054 __ JumpIfRoot(result_register(), Heap::kUndefinedValueRootIndex, | 1052 __ JumpIfRoot(result_register(), Heap::kUndefinedValueRootIndex, |
| 1055 loop_statement.continue_label()); | 1053 loop_statement.continue_label()); |
| 1056 | 1054 |
| 1057 // Update the 'each' property or variable from the possibly filtered | 1055 // Update the 'each' property or variable from the possibly filtered |
| 1058 // entry in register eax. | 1056 // entry in register eax. |
| 1059 __ bind(&update_each); | 1057 __ bind(&update_each); |
| 1060 // Perform the assignment as if via '='. | 1058 // Perform the assignment as if via '='. |
| 1061 { EffectContext context(this); | 1059 { EffectContext context(this); |
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| 2939 break; | 2937 break; |
| 2940 } | 2938 } |
| 2941 | 2939 |
| 2942 case Token::TYPEOF: { | 2940 case Token::TYPEOF: { |
| 2943 Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); | 2941 Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); |
| 2944 { | 2942 { |
| 2945 AccumulatorValueContext context(this); | 2943 AccumulatorValueContext context(this); |
| 2946 VisitForTypeofValue(expr->expression()); | 2944 VisitForTypeofValue(expr->expression()); |
| 2947 } | 2945 } |
| 2948 __ mov(ebx, eax); | 2946 __ mov(ebx, eax); |
| 2949 TypeofStub typeof_stub(isolate()); | 2947 __ Call(isolate()->builtins()->Typeof(), RelocInfo::CODE_TARGET); |
| 2950 __ CallStub(&typeof_stub); | |
| 2951 context()->Plug(eax); | 2948 context()->Plug(eax); |
| 2952 break; | 2949 break; |
| 2953 } | 2950 } |
| 2954 | 2951 |
| 2955 default: | 2952 default: |
| 2956 UNREACHABLE(); | 2953 UNREACHABLE(); |
| 2957 } | 2954 } |
| 2958 } | 2955 } |
| 2959 | 2956 |
| 2960 | 2957 |
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| 3310 EmitHasProperty(); | 3307 EmitHasProperty(); |
| 3311 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); | 3308 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); |
| 3312 __ cmp(eax, isolate()->factory()->true_value()); | 3309 __ cmp(eax, isolate()->factory()->true_value()); |
| 3313 Split(equal, if_true, if_false, fall_through); | 3310 Split(equal, if_true, if_false, fall_through); |
| 3314 break; | 3311 break; |
| 3315 | 3312 |
| 3316 case Token::INSTANCEOF: { | 3313 case Token::INSTANCEOF: { |
| 3317 VisitForAccumulatorValue(expr->right()); | 3314 VisitForAccumulatorValue(expr->right()); |
| 3318 SetExpressionPosition(expr); | 3315 SetExpressionPosition(expr); |
| 3319 PopOperand(edx); | 3316 PopOperand(edx); |
| 3320 InstanceOfStub stub(isolate()); | 3317 __ Call(isolate()->builtins()->InstanceOf(), RelocInfo::CODE_TARGET); |
| 3321 __ CallStub(&stub); | |
| 3322 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); | 3318 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); |
| 3323 __ cmp(eax, isolate()->factory()->true_value()); | 3319 __ cmp(eax, isolate()->factory()->true_value()); |
| 3324 Split(equal, if_true, if_false, fall_through); | 3320 Split(equal, if_true, if_false, fall_through); |
| 3325 break; | 3321 break; |
| 3326 } | 3322 } |
| 3327 | 3323 |
| 3328 default: { | 3324 default: { |
| 3329 VisitForAccumulatorValue(expr->right()); | 3325 VisitForAccumulatorValue(expr->right()); |
| 3330 SetExpressionPosition(expr); | 3326 SetExpressionPosition(expr); |
| 3331 Condition cc = CompareIC::ComputeCondition(op); | 3327 Condition cc = CompareIC::ComputeCondition(op); |
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| 3566 isolate->builtins()->OnStackReplacement()->entry(), | 3562 isolate->builtins()->OnStackReplacement()->entry(), |
| 3567 Assembler::target_address_at(call_target_address, unoptimized_code)); | 3563 Assembler::target_address_at(call_target_address, unoptimized_code)); |
| 3568 return ON_STACK_REPLACEMENT; | 3564 return ON_STACK_REPLACEMENT; |
| 3569 } | 3565 } |
| 3570 | 3566 |
| 3571 | 3567 |
| 3572 } // namespace internal | 3568 } // namespace internal |
| 3573 } // namespace v8 | 3569 } // namespace v8 |
| 3574 | 3570 |
| 3575 #endif // V8_TARGET_ARCH_IA32 | 3571 #endif // V8_TARGET_ARCH_IA32 |
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