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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_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/base/division-by-constant.h" | 8 #include "src/base/division-by-constant.h" |
9 #include "src/base/utils/random-number-generator.h" | 9 #include "src/base/utils/random-number-generator.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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4026 | 4026 |
4027 Condition MacroAssembler::IsObjectNameType(Register heap_object, | 4027 Condition MacroAssembler::IsObjectNameType(Register heap_object, |
4028 Register map, | 4028 Register map, |
4029 Register instance_type) { | 4029 Register instance_type) { |
4030 movp(map, FieldOperand(heap_object, HeapObject::kMapOffset)); | 4030 movp(map, FieldOperand(heap_object, HeapObject::kMapOffset)); |
4031 movzxbl(instance_type, FieldOperand(map, Map::kInstanceTypeOffset)); | 4031 movzxbl(instance_type, FieldOperand(map, Map::kInstanceTypeOffset)); |
4032 cmpb(instance_type, Immediate(static_cast<uint8_t>(LAST_NAME_TYPE))); | 4032 cmpb(instance_type, Immediate(static_cast<uint8_t>(LAST_NAME_TYPE))); |
4033 return below_equal; | 4033 return below_equal; |
4034 } | 4034 } |
4035 | 4035 |
| 4036 void MacroAssembler::GetMapConstructor(Register result, Register map, |
| 4037 Register temp) { |
| 4038 Label done, loop; |
| 4039 movp(result, FieldOperand(map, Map::kConstructorOrBackPointerOffset)); |
| 4040 bind(&loop); |
| 4041 JumpIfSmi(result, &done, Label::kNear); |
| 4042 CmpObjectType(result, MAP_TYPE, temp); |
| 4043 j(not_equal, &done, Label::kNear); |
| 4044 movp(result, FieldOperand(result, Map::kConstructorOrBackPointerOffset)); |
| 4045 jmp(&loop); |
| 4046 bind(&done); |
| 4047 } |
4036 | 4048 |
4037 void MacroAssembler::SetCounter(StatsCounter* counter, int value) { | 4049 void MacroAssembler::SetCounter(StatsCounter* counter, int value) { |
4038 if (FLAG_native_code_counters && counter->Enabled()) { | 4050 if (FLAG_native_code_counters && counter->Enabled()) { |
4039 Operand counter_operand = ExternalOperand(ExternalReference(counter)); | 4051 Operand counter_operand = ExternalOperand(ExternalReference(counter)); |
4040 movl(counter_operand, Immediate(value)); | 4052 movl(counter_operand, Immediate(value)); |
4041 } | 4053 } |
4042 } | 4054 } |
4043 | 4055 |
4044 | 4056 |
4045 void MacroAssembler::IncrementCounter(StatsCounter* counter, int value) { | 4057 void MacroAssembler::IncrementCounter(StatsCounter* counter, int value) { |
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5280 movl(rax, dividend); | 5292 movl(rax, dividend); |
5281 shrl(rax, Immediate(31)); | 5293 shrl(rax, Immediate(31)); |
5282 addl(rdx, rax); | 5294 addl(rdx, rax); |
5283 } | 5295 } |
5284 | 5296 |
5285 | 5297 |
5286 } // namespace internal | 5298 } // namespace internal |
5287 } // namespace v8 | 5299 } // namespace v8 |
5288 | 5300 |
5289 #endif // V8_TARGET_ARCH_X64 | 5301 #endif // V8_TARGET_ARCH_X64 |
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