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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/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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3149 } | 3149 } |
3150 | 3150 |
3151 __ SmiUntag(value); | 3151 __ SmiUntag(value); |
3152 // No need to untag a smi for two-byte addressing. | 3152 // No need to untag a smi for two-byte addressing. |
3153 __ mov_w(FieldOperand(string, index, times_1, SeqTwoByteString::kHeaderSize), | 3153 __ mov_w(FieldOperand(string, index, times_1, SeqTwoByteString::kHeaderSize), |
3154 value); | 3154 value); |
3155 context()->Plug(string); | 3155 context()->Plug(string); |
3156 } | 3156 } |
3157 | 3157 |
3158 | 3158 |
3159 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) { | |
3160 ZoneList<Expression*>* args = expr->arguments(); | |
3161 DCHECK(args->length() == 2); | |
3162 | |
3163 VisitForStackValue(args->at(0)); // Load the object. | |
3164 VisitForAccumulatorValue(args->at(1)); // Load the value. | |
3165 __ pop(ebx); // eax = value. ebx = object. | |
3166 | |
3167 Label done; | |
3168 // If the object is a smi, return the value. | |
3169 __ JumpIfSmi(ebx, &done, Label::kNear); | |
3170 | |
3171 // If the object is not a value type, return the value. | |
3172 __ CmpObjectType(ebx, JS_VALUE_TYPE, ecx); | |
3173 __ j(not_equal, &done, Label::kNear); | |
3174 | |
3175 // Store the value. | |
3176 __ mov(FieldOperand(ebx, JSValue::kValueOffset), eax); | |
3177 | |
3178 // Update the write barrier. Save the value as it will be | |
3179 // overwritten by the write barrier code and is needed afterward. | |
3180 __ mov(edx, eax); | |
3181 __ RecordWriteField(ebx, JSValue::kValueOffset, edx, ecx, kDontSaveFPRegs); | |
3182 | |
3183 __ bind(&done); | |
3184 context()->Plug(eax); | |
3185 } | |
3186 | |
3187 | |
3188 void FullCodeGenerator::EmitToInteger(CallRuntime* expr) { | 3159 void FullCodeGenerator::EmitToInteger(CallRuntime* expr) { |
3189 ZoneList<Expression*>* args = expr->arguments(); | 3160 ZoneList<Expression*>* args = expr->arguments(); |
3190 DCHECK_EQ(1, args->length()); | 3161 DCHECK_EQ(1, args->length()); |
3191 | 3162 |
3192 // Load the argument into eax and convert it. | 3163 // Load the argument into eax and convert it. |
3193 VisitForAccumulatorValue(args->at(0)); | 3164 VisitForAccumulatorValue(args->at(0)); |
3194 | 3165 |
3195 // Convert the object to an integer. | 3166 // Convert the object to an integer. |
3196 Label done_convert; | 3167 Label done_convert; |
3197 __ JumpIfSmi(eax, &done_convert, Label::kNear); | 3168 __ JumpIfSmi(eax, &done_convert, Label::kNear); |
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4507 Assembler::target_address_at(call_target_address, | 4478 Assembler::target_address_at(call_target_address, |
4508 unoptimized_code)); | 4479 unoptimized_code)); |
4509 return OSR_AFTER_STACK_CHECK; | 4480 return OSR_AFTER_STACK_CHECK; |
4510 } | 4481 } |
4511 | 4482 |
4512 | 4483 |
4513 } // namespace internal | 4484 } // namespace internal |
4514 } // namespace v8 | 4485 } // namespace v8 |
4515 | 4486 |
4516 #endif // V8_TARGET_ARCH_IA32 | 4487 #endif // V8_TARGET_ARCH_IA32 |
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