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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 "v8.h" | 5 #include "v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "x64/lithium-codegen-x64.h" | 9 #include "x64/lithium-codegen-x64.h" |
10 #include "code-stubs.h" | 10 #include "code-stubs.h" |
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4014 Register value = ToRegister(instr->value()); | 4014 Register value = ToRegister(instr->value()); |
4015 Condition cc = masm()->CheckSmi(value); | 4015 Condition cc = masm()->CheckSmi(value); |
4016 DeoptimizeIf(cc, instr->environment()); | 4016 DeoptimizeIf(cc, instr->environment()); |
4017 | 4017 |
4018 // We know now that value is not a smi, so we can omit the check below. | 4018 // We know now that value is not a smi, so we can omit the check below. |
4019 check_needed = OMIT_SMI_CHECK; | 4019 check_needed = OMIT_SMI_CHECK; |
4020 } | 4020 } |
4021 } | 4021 } |
4022 } else if (representation.IsDouble()) { | 4022 } else if (representation.IsDouble()) { |
4023 ASSERT(access.IsInobject()); | 4023 ASSERT(access.IsInobject()); |
| 4024 ASSERT(!hinstr->has_transition()); |
4024 ASSERT(!hinstr->NeedsWriteBarrier()); | 4025 ASSERT(!hinstr->NeedsWriteBarrier()); |
4025 XMMRegister value = ToDoubleRegister(instr->value()); | 4026 XMMRegister value = ToDoubleRegister(instr->value()); |
4026 __ movsd(FieldOperand(object, offset), value); | 4027 __ movsd(FieldOperand(object, offset), value); |
4027 return; | 4028 return; |
4028 } | 4029 } |
4029 | 4030 |
| 4031 if (hinstr->has_transition()) { |
| 4032 Handle<Map> transition = hinstr->transition_map(); |
| 4033 AddDeprecationDependency(transition); |
| 4034 if (!hinstr->NeedsWriteBarrierForMap()) { |
| 4035 __ Move(FieldOperand(object, HeapObject::kMapOffset), transition); |
| 4036 } else { |
| 4037 Register temp = ToRegister(instr->temp()); |
| 4038 __ Move(kScratchRegister, transition); |
| 4039 __ movp(FieldOperand(object, HeapObject::kMapOffset), kScratchRegister); |
| 4040 // Update the write barrier for the map field. |
| 4041 __ RecordWriteField(object, |
| 4042 HeapObject::kMapOffset, |
| 4043 kScratchRegister, |
| 4044 temp, |
| 4045 kSaveFPRegs, |
| 4046 OMIT_REMEMBERED_SET, |
| 4047 OMIT_SMI_CHECK); |
| 4048 } |
| 4049 } |
| 4050 |
4030 // Do the store. | 4051 // Do the store. |
4031 Register write_register = object; | 4052 Register write_register = object; |
4032 if (!access.IsInobject()) { | 4053 if (!access.IsInobject()) { |
4033 write_register = ToRegister(instr->temp()); | 4054 write_register = ToRegister(instr->temp()); |
4034 __ movp(write_register, FieldOperand(object, JSObject::kPropertiesOffset)); | 4055 __ movp(write_register, FieldOperand(object, JSObject::kPropertiesOffset)); |
4035 } | 4056 } |
4036 | 4057 |
4037 if (representation.IsSmi() && SmiValuesAre32Bits() && | 4058 if (representation.IsSmi() && SmiValuesAre32Bits() && |
4038 hinstr->value()->representation().IsInteger32()) { | 4059 hinstr->value()->representation().IsInteger32()) { |
4039 ASSERT(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); | 4060 ASSERT(hinstr->store_mode() == STORE_TO_INITIALIZED_ENTRY); |
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5699 __ bind(deferred->exit()); | 5720 __ bind(deferred->exit()); |
5700 __ bind(&done); | 5721 __ bind(&done); |
5701 } | 5722 } |
5702 | 5723 |
5703 | 5724 |
5704 #undef __ | 5725 #undef __ |
5705 | 5726 |
5706 } } // namespace v8::internal | 5727 } } // namespace v8::internal |
5707 | 5728 |
5708 #endif // V8_TARGET_ARCH_X64 | 5729 #endif // V8_TARGET_ARCH_X64 |
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