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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_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
6 | 6 |
7 // Note on Mips implementation: | 7 // Note on Mips implementation: |
8 // | 8 // |
9 // The result_register() for mips is the 'v0' register, which is defined | 9 // The result_register() for mips is the 'v0' register, which is defined |
10 // by the ABI to contain function return values. However, the first | 10 // by the ABI to contain function return values. However, the first |
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1005 Label convert, done_convert; | 1005 Label convert, done_convert; |
1006 __ JumpIfSmi(a0, &convert); | 1006 __ JumpIfSmi(a0, &convert); |
1007 __ GetObjectType(a0, a1, a1); | 1007 __ GetObjectType(a0, a1, a1); |
1008 __ Branch(USE_DELAY_SLOT, &done_convert, ge, a1, | 1008 __ Branch(USE_DELAY_SLOT, &done_convert, ge, a1, |
1009 Operand(FIRST_JS_RECEIVER_TYPE)); | 1009 Operand(FIRST_JS_RECEIVER_TYPE)); |
1010 __ LoadRoot(at, Heap::kNullValueRootIndex); // In delay slot. | 1010 __ LoadRoot(at, Heap::kNullValueRootIndex); // In delay slot. |
1011 __ Branch(USE_DELAY_SLOT, &exit, eq, a0, Operand(at)); | 1011 __ Branch(USE_DELAY_SLOT, &exit, eq, a0, Operand(at)); |
1012 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); // In delay slot. | 1012 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); // In delay slot. |
1013 __ Branch(&exit, eq, a0, Operand(at)); | 1013 __ Branch(&exit, eq, a0, Operand(at)); |
1014 __ bind(&convert); | 1014 __ bind(&convert); |
1015 ToObjectStub stub(isolate()); | 1015 __ Call(isolate()->builtins()->ToObject(), RelocInfo::CODE_TARGET); |
1016 __ CallStub(&stub); | |
1017 RestoreContext(); | 1016 RestoreContext(); |
1018 __ mov(a0, v0); | 1017 __ mov(a0, v0); |
1019 __ bind(&done_convert); | 1018 __ bind(&done_convert); |
1020 PrepareForBailoutForId(stmt->ToObjectId(), BailoutState::TOS_REGISTER); | 1019 PrepareForBailoutForId(stmt->ToObjectId(), BailoutState::TOS_REGISTER); |
1021 __ push(a0); | 1020 __ push(a0); |
1022 | 1021 |
1023 // Check cache validity in generated code. If we cannot guarantee cache | 1022 // Check cache validity in generated code. If we cannot guarantee cache |
1024 // validity, call the runtime system to check cache validity or get the | 1023 // validity, call the runtime system to check cache validity or get the |
1025 // property names in a fixed array. Note: Proxies never have an enum cache, | 1024 // property names in a fixed array. Note: Proxies never have an enum cache, |
1026 // so will always take the slow path. | 1025 // so will always take the slow path. |
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1106 __ Branch(&update_each, eq, t0, Operand(a2)); | 1105 __ Branch(&update_each, eq, t0, Operand(a2)); |
1107 | 1106 |
1108 // We need to filter the key, record slow-path here. | 1107 // We need to filter the key, record slow-path here. |
1109 int const vector_index = SmiFromSlot(slot)->value(); | 1108 int const vector_index = SmiFromSlot(slot)->value(); |
1110 __ EmitLoadTypeFeedbackVector(a3); | 1109 __ EmitLoadTypeFeedbackVector(a3); |
1111 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); | 1110 __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate()))); |
1112 __ sw(a2, FieldMemOperand(a3, FixedArray::OffsetOfElementAt(vector_index))); | 1111 __ sw(a2, FieldMemOperand(a3, FixedArray::OffsetOfElementAt(vector_index))); |
1113 | 1112 |
1114 __ mov(a0, result_register()); | 1113 __ mov(a0, result_register()); |
1115 // a0 contains the key. The receiver in a1 is the second argument to the | 1114 // a0 contains the key. The receiver in a1 is the second argument to the |
1116 // ForInFilterStub. ForInFilter returns undefined if the receiver doesn't | 1115 // ForInFilter. ForInFilter returns undefined if the receiver doesn't |
1117 // have the key or returns the name-converted key. | 1116 // have the key or returns the name-converted key. |
1118 ForInFilterStub filter_stub(isolate()); | 1117 __ Call(isolate()->builtins()->ForInFilter(), RelocInfo::CODE_TARGET); |
1119 __ CallStub(&filter_stub); | |
1120 RestoreContext(); | 1118 RestoreContext(); |
1121 PrepareForBailoutForId(stmt->FilterId(), BailoutState::TOS_REGISTER); | 1119 PrepareForBailoutForId(stmt->FilterId(), BailoutState::TOS_REGISTER); |
1122 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); | 1120 __ LoadRoot(at, Heap::kUndefinedValueRootIndex); |
1123 __ Branch(loop_statement.continue_label(), eq, result_register(), | 1121 __ Branch(loop_statement.continue_label(), eq, result_register(), |
1124 Operand(at)); | 1122 Operand(at)); |
1125 | 1123 |
1126 // Update the 'each' property or variable from the possibly filtered | 1124 // Update the 'each' property or variable from the possibly filtered |
1127 // entry in the result_register. | 1125 // entry in the result_register. |
1128 __ bind(&update_each); | 1126 __ bind(&update_each); |
1129 // Perform the assignment as if via '='. | 1127 // Perform the assignment as if via '='. |
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3050 break; | 3048 break; |
3051 } | 3049 } |
3052 | 3050 |
3053 case Token::TYPEOF: { | 3051 case Token::TYPEOF: { |
3054 Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); | 3052 Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)"); |
3055 { | 3053 { |
3056 AccumulatorValueContext context(this); | 3054 AccumulatorValueContext context(this); |
3057 VisitForTypeofValue(expr->expression()); | 3055 VisitForTypeofValue(expr->expression()); |
3058 } | 3056 } |
3059 __ mov(a3, v0); | 3057 __ mov(a3, v0); |
3060 TypeofStub typeof_stub(isolate()); | 3058 __ Call(isolate()->builtins()->Typeof(), RelocInfo::CODE_TARGET); |
3061 __ CallStub(&typeof_stub); | |
3062 context()->Plug(v0); | 3059 context()->Plug(v0); |
3063 break; | 3060 break; |
3064 } | 3061 } |
3065 | 3062 |
3066 default: | 3063 default: |
3067 UNREACHABLE(); | 3064 UNREACHABLE(); |
3068 } | 3065 } |
3069 } | 3066 } |
3070 | 3067 |
3071 | 3068 |
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3420 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); | 3417 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); |
3421 __ LoadRoot(t0, Heap::kTrueValueRootIndex); | 3418 __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
3422 Split(eq, v0, Operand(t0), if_true, if_false, fall_through); | 3419 Split(eq, v0, Operand(t0), if_true, if_false, fall_through); |
3423 break; | 3420 break; |
3424 | 3421 |
3425 case Token::INSTANCEOF: { | 3422 case Token::INSTANCEOF: { |
3426 VisitForAccumulatorValue(expr->right()); | 3423 VisitForAccumulatorValue(expr->right()); |
3427 SetExpressionPosition(expr); | 3424 SetExpressionPosition(expr); |
3428 __ mov(a0, result_register()); | 3425 __ mov(a0, result_register()); |
3429 PopOperand(a1); | 3426 PopOperand(a1); |
3430 InstanceOfStub stub(isolate()); | 3427 __ Call(isolate()->builtins()->InstanceOf(), RelocInfo::CODE_TARGET); |
3431 __ CallStub(&stub); | |
3432 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); | 3428 PrepareForBailoutBeforeSplit(expr, false, NULL, NULL); |
3433 __ LoadRoot(at, Heap::kTrueValueRootIndex); | 3429 __ LoadRoot(at, Heap::kTrueValueRootIndex); |
3434 Split(eq, v0, Operand(at), if_true, if_false, fall_through); | 3430 Split(eq, v0, Operand(at), if_true, if_false, fall_through); |
3435 break; | 3431 break; |
3436 } | 3432 } |
3437 | 3433 |
3438 default: { | 3434 default: { |
3439 VisitForAccumulatorValue(expr->right()); | 3435 VisitForAccumulatorValue(expr->right()); |
3440 SetExpressionPosition(expr); | 3436 SetExpressionPosition(expr); |
3441 Condition cc = CompareIC::ComputeCondition(op); | 3437 Condition cc = CompareIC::ComputeCondition(op); |
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3676 reinterpret_cast<uint32_t>( | 3672 reinterpret_cast<uint32_t>( |
3677 isolate->builtins()->OnStackReplacement()->entry())); | 3673 isolate->builtins()->OnStackReplacement()->entry())); |
3678 return ON_STACK_REPLACEMENT; | 3674 return ON_STACK_REPLACEMENT; |
3679 } | 3675 } |
3680 | 3676 |
3681 | 3677 |
3682 } // namespace internal | 3678 } // namespace internal |
3683 } // namespace v8 | 3679 } // namespace v8 |
3684 | 3680 |
3685 #endif // V8_TARGET_ARCH_MIPS | 3681 #endif // V8_TARGET_ARCH_MIPS |
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