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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_ARM | 7 #if V8_TARGET_ARCH_ARM | 
| 8 | 8 | 
| 9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" | 
| 10 #include "src/codegen.h" | 10 #include "src/codegen.h" | 
| (...skipping 1957 matching lines...) Expand 10 before | Expand all | Expand 10 after  Loading... | 
| 1968 } | 1968 } | 
| 1969 | 1969 | 
| 1970 | 1970 | 
| 1971 void FullCodeGenerator::VisitYield(Yield* expr) { | 1971 void FullCodeGenerator::VisitYield(Yield* expr) { | 
| 1972   Comment cmnt(masm_, "[ Yield"); | 1972   Comment cmnt(masm_, "[ Yield"); | 
| 1973   // Evaluate yielded value first; the initial iterator definition depends on | 1973   // Evaluate yielded value first; the initial iterator definition depends on | 
| 1974   // this.  It stays on the stack while we update the iterator. | 1974   // this.  It stays on the stack while we update the iterator. | 
| 1975   VisitForStackValue(expr->expression()); | 1975   VisitForStackValue(expr->expression()); | 
| 1976 | 1976 | 
| 1977   switch (expr->yield_kind()) { | 1977   switch (expr->yield_kind()) { | 
| 1978     case Yield::SUSPEND: | 1978     case Yield::kSuspend: | 
| 1979       // Pop value from top-of-stack slot; box result into result register. | 1979       // Pop value from top-of-stack slot; box result into result register. | 
| 1980       EmitCreateIteratorResult(false); | 1980       EmitCreateIteratorResult(false); | 
| 1981       __ push(result_register()); | 1981       __ push(result_register()); | 
| 1982       // Fall through. | 1982       // Fall through. | 
| 1983     case Yield::INITIAL: { | 1983     case Yield::kInitial: { | 
| 1984       Label suspend, continuation, post_runtime, resume; | 1984       Label suspend, continuation, post_runtime, resume; | 
| 1985 | 1985 | 
| 1986       __ jmp(&suspend); | 1986       __ jmp(&suspend); | 
| 1987 | 1987 | 
| 1988       __ bind(&continuation); | 1988       __ bind(&continuation); | 
| 1989       __ jmp(&resume); | 1989       __ jmp(&resume); | 
| 1990 | 1990 | 
| 1991       __ bind(&suspend); | 1991       __ bind(&suspend); | 
| 1992       VisitForAccumulatorValue(expr->generator_object()); | 1992       VisitForAccumulatorValue(expr->generator_object()); | 
| 1993       DCHECK(continuation.pos() > 0 && Smi::IsValid(continuation.pos())); | 1993       DCHECK(continuation.pos() > 0 && Smi::IsValid(continuation.pos())); | 
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| 2005       __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 2005       __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 
| 2006       __ bind(&post_runtime); | 2006       __ bind(&post_runtime); | 
| 2007       __ pop(result_register()); | 2007       __ pop(result_register()); | 
| 2008       EmitReturnSequence(); | 2008       EmitReturnSequence(); | 
| 2009 | 2009 | 
| 2010       __ bind(&resume); | 2010       __ bind(&resume); | 
| 2011       context()->Plug(result_register()); | 2011       context()->Plug(result_register()); | 
| 2012       break; | 2012       break; | 
| 2013     } | 2013     } | 
| 2014 | 2014 | 
| 2015     case Yield::FINAL: { | 2015     case Yield::kFinal: { | 
| 2016       VisitForAccumulatorValue(expr->generator_object()); | 2016       VisitForAccumulatorValue(expr->generator_object()); | 
| 2017       __ mov(r1, Operand(Smi::FromInt(JSGeneratorObject::kGeneratorClosed))); | 2017       __ mov(r1, Operand(Smi::FromInt(JSGeneratorObject::kGeneratorClosed))); | 
| 2018       __ str(r1, FieldMemOperand(result_register(), | 2018       __ str(r1, FieldMemOperand(result_register(), | 
| 2019                                  JSGeneratorObject::kContinuationOffset)); | 2019                                  JSGeneratorObject::kContinuationOffset)); | 
| 2020       // Pop value from top-of-stack slot, box result into result register. | 2020       // Pop value from top-of-stack slot, box result into result register. | 
| 2021       EmitCreateIteratorResult(true); | 2021       EmitCreateIteratorResult(true); | 
| 2022       EmitUnwindBeforeReturn(); | 2022       EmitUnwindBeforeReturn(); | 
| 2023       EmitReturnSequence(); | 2023       EmitReturnSequence(); | 
| 2024       break; | 2024       break; | 
| 2025     } | 2025     } | 
| 2026 | 2026 | 
| 2027     case Yield::DELEGATING: { | 2027     case Yield::kDelegating: { | 
| 2028       VisitForStackValue(expr->generator_object()); | 2028       VisitForStackValue(expr->generator_object()); | 
| 2029 | 2029 | 
| 2030       // Initial stack layout is as follows: | 2030       // Initial stack layout is as follows: | 
| 2031       // [sp + 1 * kPointerSize] iter | 2031       // [sp + 1 * kPointerSize] iter | 
| 2032       // [sp + 0 * kPointerSize] g | 2032       // [sp + 0 * kPointerSize] g | 
| 2033 | 2033 | 
| 2034       Label l_catch, l_try, l_suspend, l_continuation, l_resume; | 2034       Label l_catch, l_try, l_suspend, l_continuation, l_resume; | 
| 2035       Label l_next, l_call, l_loop; | 2035       Label l_next, l_call, l_loop; | 
| 2036       Register load_receiver = LoadConvention::ReceiverRegister(); | 2036       Register load_receiver = LoadConvention::ReceiverRegister(); | 
| 2037       Register load_name = LoadConvention::NameRegister(); | 2037       Register load_name = LoadConvention::NameRegister(); | 
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| 4927 | 4927 | 
| 4928   DCHECK(interrupt_address == | 4928   DCHECK(interrupt_address == | 
| 4929          isolate->builtins()->OsrAfterStackCheck()->entry()); | 4929          isolate->builtins()->OsrAfterStackCheck()->entry()); | 
| 4930   return OSR_AFTER_STACK_CHECK; | 4930   return OSR_AFTER_STACK_CHECK; | 
| 4931 } | 4931 } | 
| 4932 | 4932 | 
| 4933 | 4933 | 
| 4934 } }  // namespace v8::internal | 4934 } }  // namespace v8::internal | 
| 4935 | 4935 | 
| 4936 #endif  // V8_TARGET_ARCH_ARM | 4936 #endif  // V8_TARGET_ARCH_ARM | 
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