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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 | |
2870 void MacroAssembler::Drop(int stack_elements) { | 2855 void MacroAssembler::Drop(int stack_elements) { |
2871 if (stack_elements > 0) { | 2856 if (stack_elements > 0) { |
2872 addp(rsp, Immediate(stack_elements * kPointerSize)); | 2857 addp(rsp, Immediate(stack_elements * kPointerSize)); |
2873 } | 2858 } |
2874 } | 2859 } |
2875 | 2860 |
2876 | 2861 |
2877 void MacroAssembler::DropUnderReturnAddress(int stack_elements, | 2862 void MacroAssembler::DropUnderReturnAddress(int stack_elements, |
2878 Register scratch) { | 2863 Register scratch) { |
2879 DCHECK(stack_elements > 0); | 2864 DCHECK(stack_elements > 0); |
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5409 if (mag.shift > 0) sarl(rdx, Immediate(mag.shift)); | 5394 if (mag.shift > 0) sarl(rdx, Immediate(mag.shift)); |
5410 movl(rax, dividend); | 5395 movl(rax, dividend); |
5411 shrl(rax, Immediate(31)); | 5396 shrl(rax, Immediate(31)); |
5412 addl(rdx, rax); | 5397 addl(rdx, rax); |
5413 } | 5398 } |
5414 | 5399 |
5415 | 5400 |
5416 } } // namespace v8::internal | 5401 } } // namespace v8::internal |
5417 | 5402 |
5418 #endif // V8_TARGET_ARCH_X64 | 5403 #endif // V8_TARGET_ARCH_X64 |
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