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Issue 888613002: Initial switch to Chromium-style CHECK_* and DCHECK_* macros. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: CHECK_NULL/NOT_NULL is back. Created 5 years, 10 months ago
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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_IA32 7 #if V8_TARGET_ARCH_IA32
8 8
9 #include "src/base/bits.h" 9 #include "src/base/bits.h"
10 #include "src/bootstrapper.h" 10 #include "src/bootstrapper.h"
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1699 if (cc == equal && strict()) { 1699 if (cc == equal && strict()) {
1700 Label slow; // Fallthrough label. 1700 Label slow; // Fallthrough label.
1701 Label not_smis; 1701 Label not_smis;
1702 // If we're doing a strict equality comparison, we don't have to do 1702 // If we're doing a strict equality comparison, we don't have to do
1703 // type conversion, so we generate code to do fast comparison for objects 1703 // type conversion, so we generate code to do fast comparison for objects
1704 // and oddballs. Non-smi numbers and strings still go through the usual 1704 // and oddballs. Non-smi numbers and strings still go through the usual
1705 // slow-case code. 1705 // slow-case code.
1706 // If either is a Smi (we know that not both are), then they can only 1706 // If either is a Smi (we know that not both are), then they can only
1707 // be equal if the other is a HeapNumber. If so, use the slow case. 1707 // be equal if the other is a HeapNumber. If so, use the slow case.
1708 STATIC_ASSERT(kSmiTag == 0); 1708 STATIC_ASSERT(kSmiTag == 0);
1709 DCHECK_EQ(0, Smi::FromInt(0)); 1709 DCHECK_EQ(static_cast<Smi*>(0), Smi::FromInt(0));
1710 __ mov(ecx, Immediate(kSmiTagMask)); 1710 __ mov(ecx, Immediate(kSmiTagMask));
1711 __ and_(ecx, eax); 1711 __ and_(ecx, eax);
1712 __ test(ecx, edx); 1712 __ test(ecx, edx);
1713 __ j(not_zero, &not_smis, Label::kNear); 1713 __ j(not_zero, &not_smis, Label::kNear);
1714 // One operand is a smi. 1714 // One operand is a smi.
1715 1715
1716 // Check whether the non-smi is a heap number. 1716 // Check whether the non-smi is a heap number.
1717 STATIC_ASSERT(kSmiTagMask == 1); 1717 STATIC_ASSERT(kSmiTagMask == 1);
1718 // ecx still holds eax & kSmiTag, which is either zero or one. 1718 // ecx still holds eax & kSmiTag, which is either zero or one.
1719 __ sub(ecx, Immediate(0x01)); 1719 __ sub(ecx, Immediate(0x01));
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5081 ApiParameterOperand(2), kStackSpace, nullptr, 5081 ApiParameterOperand(2), kStackSpace, nullptr,
5082 Operand(ebp, 7 * kPointerSize), NULL); 5082 Operand(ebp, 7 * kPointerSize), NULL);
5083 } 5083 }
5084 5084
5085 5085
5086 #undef __ 5086 #undef __
5087 5087
5088 } } // namespace v8::internal 5088 } } // namespace v8::internal
5089 5089
5090 #endif // V8_TARGET_ARCH_IA32 5090 #endif // V8_TARGET_ARCH_IA32
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