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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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1558 } | 1558 } |
1559 | 1559 |
1560 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), | 1560 // Test for NaN. Sadly, we can't just compare to Factory::nan_value(), |
1561 // so we do the second best thing - test it ourselves. | 1561 // so we do the second best thing - test it ourselves. |
1562 Label heap_number; | 1562 Label heap_number; |
1563 // If it's not a heap number, then return equal for (in)equality operator. | 1563 // If it's not a heap number, then return equal for (in)equality operator. |
1564 __ Cmp(FieldOperand(rdx, HeapObject::kMapOffset), | 1564 __ Cmp(FieldOperand(rdx, HeapObject::kMapOffset), |
1565 factory->heap_number_map()); | 1565 factory->heap_number_map()); |
1566 __ j(equal, &heap_number, Label::kNear); | 1566 __ j(equal, &heap_number, Label::kNear); |
1567 if (cc != equal) { | 1567 if (cc != equal) { |
| 1568 Label not_simd; |
1568 __ movp(rcx, FieldOperand(rax, HeapObject::kMapOffset)); | 1569 __ movp(rcx, FieldOperand(rax, HeapObject::kMapOffset)); |
1569 __ movzxbl(rcx, FieldOperand(rcx, Map::kInstanceTypeOffset)); | 1570 __ movzxbl(rcx, FieldOperand(rcx, Map::kInstanceTypeOffset)); |
1570 // Call runtime on identical objects. Otherwise return equal. | 1571 // Call runtime on identical objects. Otherwise return equal. |
1571 __ cmpb(rcx, Immediate(static_cast<uint8_t>(FIRST_SPEC_OBJECT_TYPE))); | 1572 __ cmpb(rcx, Immediate(static_cast<uint8_t>(FIRST_SPEC_OBJECT_TYPE))); |
1572 __ j(above_equal, &runtime_call, Label::kFar); | 1573 __ j(above_equal, &runtime_call, Label::kFar); |
1573 // Call runtime on identical symbols since we need to throw a TypeError. | 1574 // Call runtime on identical symbols since we need to throw a TypeError. |
1574 __ cmpb(rcx, Immediate(static_cast<uint8_t>(SYMBOL_TYPE))); | 1575 __ cmpb(rcx, Immediate(static_cast<uint8_t>(SYMBOL_TYPE))); |
1575 __ j(equal, &runtime_call, Label::kFar); | 1576 __ j(equal, &runtime_call, Label::kFar); |
1576 // Call runtime on identical SIMD values since we must throw a TypeError. | 1577 // Call runtime on identical SIMD values since we must throw a TypeError. |
1577 __ cmpb(rcx, Immediate(static_cast<uint8_t>(FLOAT32X4_TYPE))); | 1578 __ cmpb(rcx, Immediate(static_cast<uint8_t>(FIRST_SIMD128_VALUE_TYPE))); |
1578 __ j(equal, &runtime_call, Label::kFar); | 1579 __ j(less, ¬_simd, Label::kFar); |
| 1580 __ cmpb(rcx, Immediate(static_cast<uint8_t>(LAST_SIMD128_VALUE_TYPE))); |
| 1581 __ j(less_equal, &runtime_call, Label::kFar); |
| 1582 __ bind(¬_simd); |
1579 if (is_strong(strength())) { | 1583 if (is_strong(strength())) { |
1580 // We have already tested for smis and heap numbers, so if both | 1584 // We have already tested for smis and heap numbers, so if both |
1581 // arguments are not strings we must proceed to the slow case. | 1585 // arguments are not strings we must proceed to the slow case. |
1582 __ testb(rcx, Immediate(kIsNotStringMask)); | 1586 __ testb(rcx, Immediate(kIsNotStringMask)); |
1583 __ j(not_zero, &runtime_call, Label::kFar); | 1587 __ j(not_zero, &runtime_call, Label::kFar); |
1584 } | 1588 } |
1585 } | 1589 } |
1586 __ Set(rax, EQUAL); | 1590 __ Set(rax, EQUAL); |
1587 __ ret(0); | 1591 __ ret(0); |
1588 | 1592 |
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5583 kStackSpace, nullptr, return_value_operand, NULL); | 5587 kStackSpace, nullptr, return_value_operand, NULL); |
5584 } | 5588 } |
5585 | 5589 |
5586 | 5590 |
5587 #undef __ | 5591 #undef __ |
5588 | 5592 |
5589 } // namespace internal | 5593 } // namespace internal |
5590 } // namespace v8 | 5594 } // namespace v8 |
5591 | 5595 |
5592 #endif // V8_TARGET_ARCH_X64 | 5596 #endif // V8_TARGET_ARCH_X64 |
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