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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 #if V8_TARGET_ARCH_X64 | 7 #if V8_TARGET_ARCH_X64 |
8 | 8 |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/base/division-by-constant.h" | 10 #include "src/base/division-by-constant.h" |
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2845 if (dst.is(rax)) { | 2845 if (dst.is(rax)) { |
2846 AllowDeferredHandleDereference embedding_raw_address; | 2846 AllowDeferredHandleDereference embedding_raw_address; |
2847 load_rax(cell.location(), RelocInfo::CELL); | 2847 load_rax(cell.location(), RelocInfo::CELL); |
2848 } else { | 2848 } else { |
2849 Move(dst, cell, RelocInfo::CELL); | 2849 Move(dst, cell, RelocInfo::CELL); |
2850 movp(dst, Operand(dst, 0)); | 2850 movp(dst, Operand(dst, 0)); |
2851 } | 2851 } |
2852 } | 2852 } |
2853 | 2853 |
2854 | 2854 |
| 2855 void MacroAssembler::CmpWeakValue(Register value, Handle<WeakCell> cell, |
| 2856 Register scratch) { |
| 2857 Move(scratch, cell, RelocInfo::EMBEDDED_OBJECT); |
| 2858 cmpp(value, FieldOperand(scratch, WeakCell::kValueOffset)); |
| 2859 } |
| 2860 |
| 2861 |
| 2862 void MacroAssembler::LoadWeakValue(Register value, Handle<WeakCell> cell, |
| 2863 Label* miss) { |
| 2864 Move(value, cell, RelocInfo::EMBEDDED_OBJECT); |
| 2865 movp(value, FieldOperand(value, WeakCell::kValueOffset)); |
| 2866 JumpIfSmi(value, miss); |
| 2867 } |
| 2868 |
| 2869 |
2855 void MacroAssembler::Drop(int stack_elements) { | 2870 void MacroAssembler::Drop(int stack_elements) { |
2856 if (stack_elements > 0) { | 2871 if (stack_elements > 0) { |
2857 addp(rsp, Immediate(stack_elements * kPointerSize)); | 2872 addp(rsp, Immediate(stack_elements * kPointerSize)); |
2858 } | 2873 } |
2859 } | 2874 } |
2860 | 2875 |
2861 | 2876 |
2862 void MacroAssembler::DropUnderReturnAddress(int stack_elements, | 2877 void MacroAssembler::DropUnderReturnAddress(int stack_elements, |
2863 Register scratch) { | 2878 Register scratch) { |
2864 DCHECK(stack_elements > 0); | 2879 DCHECK(stack_elements > 0); |
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5394 if (mag.shift > 0) sarl(rdx, Immediate(mag.shift)); | 5409 if (mag.shift > 0) sarl(rdx, Immediate(mag.shift)); |
5395 movl(rax, dividend); | 5410 movl(rax, dividend); |
5396 shrl(rax, Immediate(31)); | 5411 shrl(rax, Immediate(31)); |
5397 addl(rdx, rax); | 5412 addl(rdx, rax); |
5398 } | 5413 } |
5399 | 5414 |
5400 | 5415 |
5401 } } // namespace v8::internal | 5416 } } // namespace v8::internal |
5402 | 5417 |
5403 #endif // V8_TARGET_ARCH_X64 | 5418 #endif // V8_TARGET_ARCH_X64 |
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