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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_X87 | 5 #if V8_TARGET_ARCH_X87 |
| 6 | 6 |
| 7 #include "src/code-stubs.h" | 7 #include "src/code-stubs.h" |
| 8 #include "src/api-arguments.h" | 8 #include "src/api-arguments.h" |
| 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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| 785 __ j(equal, &generic_heap_number_comparison, Label::kNear); | 785 __ j(equal, &generic_heap_number_comparison, Label::kNear); |
| 786 if (cc != equal) { | 786 if (cc != equal) { |
| 787 __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); | 787 __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); |
| 788 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); | 788 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 789 // Call runtime on identical JSObjects. Otherwise return equal. | 789 // Call runtime on identical JSObjects. Otherwise return equal. |
| 790 __ cmpb(ecx, Immediate(FIRST_JS_RECEIVER_TYPE)); | 790 __ cmpb(ecx, Immediate(FIRST_JS_RECEIVER_TYPE)); |
| 791 __ j(above_equal, &runtime_call, Label::kFar); | 791 __ j(above_equal, &runtime_call, Label::kFar); |
| 792 // Call runtime on identical symbols since we need to throw a TypeError. | 792 // Call runtime on identical symbols since we need to throw a TypeError. |
| 793 __ cmpb(ecx, Immediate(SYMBOL_TYPE)); | 793 __ cmpb(ecx, Immediate(SYMBOL_TYPE)); |
| 794 __ j(equal, &runtime_call, Label::kFar); | 794 __ j(equal, &runtime_call, Label::kFar); |
| 795 // Call runtime on identical SIMD values since we must throw a TypeError. | |
| 796 __ cmpb(ecx, Immediate(SIMD128_VALUE_TYPE)); | |
| 797 __ j(equal, &runtime_call, Label::kFar); | |
| 798 } | 795 } |
| 799 __ Move(eax, Immediate(Smi::FromInt(EQUAL))); | 796 __ Move(eax, Immediate(Smi::FromInt(EQUAL))); |
| 800 __ ret(0); | 797 __ ret(0); |
| 801 | 798 |
| 802 | 799 |
| 803 __ bind(¬_identical); | 800 __ bind(¬_identical); |
| 804 } | 801 } |
| 805 | 802 |
| 806 // Strict equality can quickly decide whether objects are equal. | 803 // Strict equality can quickly decide whether objects are equal. |
| 807 // Non-strict object equality is slower, so it is handled later in the stub. | 804 // Non-strict object equality is slower, so it is handled later in the stub. |
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| 3899 kStackUnwindSpace, nullptr, return_value_operand, | 3896 kStackUnwindSpace, nullptr, return_value_operand, |
| 3900 NULL); | 3897 NULL); |
| 3901 } | 3898 } |
| 3902 | 3899 |
| 3903 #undef __ | 3900 #undef __ |
| 3904 | 3901 |
| 3905 } // namespace internal | 3902 } // namespace internal |
| 3906 } // namespace v8 | 3903 } // namespace v8 |
| 3907 | 3904 |
| 3908 #endif // V8_TARGET_ARCH_X87 | 3905 #endif // V8_TARGET_ARCH_X87 |
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