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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_IA32 | 5 #if V8_TARGET_ARCH_IA32 |
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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966 __ j(equal, &generic_heap_number_comparison, Label::kNear); | 966 __ j(equal, &generic_heap_number_comparison, Label::kNear); |
967 if (cc != equal) { | 967 if (cc != equal) { |
968 __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); | 968 __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset)); |
969 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); | 969 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
970 // Call runtime on identical JSObjects. Otherwise return equal. | 970 // Call runtime on identical JSObjects. Otherwise return equal. |
971 __ cmpb(ecx, Immediate(FIRST_JS_RECEIVER_TYPE)); | 971 __ cmpb(ecx, Immediate(FIRST_JS_RECEIVER_TYPE)); |
972 __ j(above_equal, &runtime_call, Label::kFar); | 972 __ j(above_equal, &runtime_call, Label::kFar); |
973 // Call runtime on identical symbols since we need to throw a TypeError. | 973 // Call runtime on identical symbols since we need to throw a TypeError. |
974 __ cmpb(ecx, Immediate(SYMBOL_TYPE)); | 974 __ cmpb(ecx, Immediate(SYMBOL_TYPE)); |
975 __ j(equal, &runtime_call, Label::kFar); | 975 __ j(equal, &runtime_call, Label::kFar); |
976 // Call runtime on identical SIMD values since we must throw a TypeError. | |
977 __ cmpb(ecx, Immediate(SIMD128_VALUE_TYPE)); | |
978 __ j(equal, &runtime_call, Label::kFar); | |
979 } | 976 } |
980 __ Move(eax, Immediate(Smi::FromInt(EQUAL))); | 977 __ Move(eax, Immediate(Smi::FromInt(EQUAL))); |
981 __ ret(0); | 978 __ ret(0); |
982 | 979 |
983 | 980 |
984 __ bind(¬_identical); | 981 __ bind(¬_identical); |
985 } | 982 } |
986 | 983 |
987 // Strict equality can quickly decide whether objects are equal. | 984 // Strict equality can quickly decide whether objects are equal. |
988 // Non-strict object equality is slower, so it is handled later in the stub. | 985 // Non-strict object equality is slower, so it is handled later in the stub. |
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3344 kStackUnwindSpace, nullptr, return_value_operand, | 3341 kStackUnwindSpace, nullptr, return_value_operand, |
3345 NULL); | 3342 NULL); |
3346 } | 3343 } |
3347 | 3344 |
3348 #undef __ | 3345 #undef __ |
3349 | 3346 |
3350 } // namespace internal | 3347 } // namespace internal |
3351 } // namespace v8 | 3348 } // namespace v8 |
3352 | 3349 |
3353 #endif // V8_TARGET_ARCH_IA32 | 3350 #endif // V8_TARGET_ARCH_IA32 |
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