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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/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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2943 // Skip loop if no descriptors are valid. | 2943 // Skip loop if no descriptors are valid. |
2944 __ NumberOfOwnDescriptors(rcx, rbx); | 2944 __ NumberOfOwnDescriptors(rcx, rbx); |
2945 __ cmpp(rcx, Immediate(0)); | 2945 __ cmpp(rcx, Immediate(0)); |
2946 __ j(equal, &done); | 2946 __ j(equal, &done); |
2947 | 2947 |
2948 __ LoadInstanceDescriptors(rbx, r8); | 2948 __ LoadInstanceDescriptors(rbx, r8); |
2949 // rbx: descriptor array. | 2949 // rbx: descriptor array. |
2950 // rcx: valid entries in the descriptor array. | 2950 // rcx: valid entries in the descriptor array. |
2951 // Calculate the end of the descriptor array. | 2951 // Calculate the end of the descriptor array. |
2952 __ imulp(rcx, rcx, Immediate(DescriptorArray::kDescriptorSize)); | 2952 __ imulp(rcx, rcx, Immediate(DescriptorArray::kDescriptorSize)); |
2953 __ leap(rcx, Operand(r8, rcx, times_8, DescriptorArray::kFirstOffset)); | 2953 __ leap(rcx, |
| 2954 Operand(r8, rcx, times_pointer_size, DescriptorArray::kFirstOffset)); |
2954 // Calculate location of the first key name. | 2955 // Calculate location of the first key name. |
2955 __ addp(r8, Immediate(DescriptorArray::kFirstOffset)); | 2956 __ addp(r8, Immediate(DescriptorArray::kFirstOffset)); |
2956 // Loop through all the keys in the descriptor array. If one of these is the | 2957 // Loop through all the keys in the descriptor array. If one of these is the |
2957 // internalized string "valueOf" the result is false. | 2958 // internalized string "valueOf" the result is false. |
2958 __ jmp(&entry); | 2959 __ jmp(&entry); |
2959 __ bind(&loop); | 2960 __ bind(&loop); |
2960 __ movp(rdx, FieldOperand(r8, 0)); | 2961 __ movp(rdx, FieldOperand(r8, 0)); |
2961 __ Cmp(rdx, isolate()->factory()->value_of_string()); | 2962 __ Cmp(rdx, isolate()->factory()->value_of_string()); |
2962 __ j(equal, if_false); | 2963 __ j(equal, if_false); |
2963 __ addp(r8, Immediate(DescriptorArray::kDescriptorSize * kPointerSize)); | 2964 __ addp(r8, Immediate(DescriptorArray::kDescriptorSize * kPointerSize)); |
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4803 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4804 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4804 Assembler::target_address_at(call_target_address, | 4805 Assembler::target_address_at(call_target_address, |
4805 unoptimized_code)); | 4806 unoptimized_code)); |
4806 return OSR_AFTER_STACK_CHECK; | 4807 return OSR_AFTER_STACK_CHECK; |
4807 } | 4808 } |
4808 | 4809 |
4809 | 4810 |
4810 } } // namespace v8::internal | 4811 } } // namespace v8::internal |
4811 | 4812 |
4812 #endif // V8_TARGET_ARCH_X64 | 4813 #endif // V8_TARGET_ARCH_X64 |
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