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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_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
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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2014 Expression *value, | 2014 Expression *value, |
2015 JSGeneratorObject::ResumeMode resume_mode) { | 2015 JSGeneratorObject::ResumeMode resume_mode) { |
2016 // The value stays in rax, and is ultimately read by the resumed generator, as | 2016 // The value stays in rax, and is ultimately read by the resumed generator, as |
2017 // if CallRuntime(Runtime::kSuspendJSGeneratorObject) returned it. Or it | 2017 // if CallRuntime(Runtime::kSuspendJSGeneratorObject) returned it. Or it |
2018 // is read to throw the value when the resumed generator is already closed. | 2018 // is read to throw the value when the resumed generator is already closed. |
2019 // rbx will hold the generator object until the activation has been resumed. | 2019 // rbx will hold the generator object until the activation has been resumed. |
2020 VisitForStackValue(generator); | 2020 VisitForStackValue(generator); |
2021 VisitForAccumulatorValue(value); | 2021 VisitForAccumulatorValue(value); |
2022 __ Pop(rbx); | 2022 __ Pop(rbx); |
2023 | 2023 |
| 2024 // Store input value into generator object. |
| 2025 __ movp(FieldOperand(rbx, JSGeneratorObject::kInputOffset), |
| 2026 result_register()); |
| 2027 __ movp(rcx, result_register()); |
| 2028 __ RecordWriteField(rbx, JSGeneratorObject::kInputOffset, rcx, rdx, |
| 2029 kDontSaveFPRegs); |
| 2030 |
2024 // Load suspended function and context. | 2031 // Load suspended function and context. |
2025 __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kContextOffset)); | 2032 __ movp(rsi, FieldOperand(rbx, JSGeneratorObject::kContextOffset)); |
2026 __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset)); | 2033 __ movp(rdi, FieldOperand(rbx, JSGeneratorObject::kFunctionOffset)); |
2027 | 2034 |
2028 // Push receiver. | 2035 // Push receiver. |
2029 __ Push(FieldOperand(rbx, JSGeneratorObject::kReceiverOffset)); | 2036 __ Push(FieldOperand(rbx, JSGeneratorObject::kReceiverOffset)); |
2030 | 2037 |
2031 // Push holes for arguments to generator function. | 2038 // Push holes for arguments to generator function. |
2032 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); | 2039 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); |
2033 __ LoadSharedFunctionInfoSpecialField(rdx, rdx, | 2040 __ LoadSharedFunctionInfoSpecialField(rdx, rdx, |
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4718 Assembler::target_address_at(call_target_address, | 4725 Assembler::target_address_at(call_target_address, |
4719 unoptimized_code)); | 4726 unoptimized_code)); |
4720 return OSR_AFTER_STACK_CHECK; | 4727 return OSR_AFTER_STACK_CHECK; |
4721 } | 4728 } |
4722 | 4729 |
4723 | 4730 |
4724 } // namespace internal | 4731 } // namespace internal |
4725 } // namespace v8 | 4732 } // namespace v8 |
4726 | 4733 |
4727 #endif // V8_TARGET_ARCH_X64 | 4734 #endif // V8_TARGET_ARCH_X64 |
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