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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_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
| 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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| 1492 | 1492 |
| 1493 case Variable::LOOKUP: { | 1493 case Variable::LOOKUP: { |
| 1494 Comment cmnt(masm_, "[ Lookup variable"); | 1494 Comment cmnt(masm_, "[ Lookup variable"); |
| 1495 Label done, slow; | 1495 Label done, slow; |
| 1496 // Generate code for loading from variables potentially shadowed | 1496 // Generate code for loading from variables potentially shadowed |
| 1497 // by eval-introduced variables. | 1497 // by eval-introduced variables. |
| 1498 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); | 1498 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); |
| 1499 __ bind(&slow); | 1499 __ bind(&slow); |
| 1500 __ push(esi); // Context. | 1500 __ push(esi); // Context. |
| 1501 __ push(Immediate(var->name())); | 1501 __ push(Immediate(var->name())); |
| 1502 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 1502 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
| 1503 __ bind(&done); | 1503 __ bind(&done); |
| 1504 context()->Plug(eax); | 1504 context()->Plug(eax); |
| 1505 break; | 1505 break; |
| 1506 } | 1506 } |
| 1507 } | 1507 } |
| 1508 } | 1508 } |
| 1509 | 1509 |
| 1510 | 1510 |
| 1511 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { | 1511 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { |
| 1512 Comment cmnt(masm_, "[ RegExpLiteral"); | 1512 Comment cmnt(masm_, "[ RegExpLiteral"); |
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| 2680 { PreservePositionScope scope(masm()->positions_recorder()); | 2680 { PreservePositionScope scope(masm()->positions_recorder()); |
| 2681 // Generate code for loading from variables potentially shadowed by | 2681 // Generate code for loading from variables potentially shadowed by |
| 2682 // eval-introduced variables. | 2682 // eval-introduced variables. |
| 2683 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); | 2683 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); |
| 2684 } | 2684 } |
| 2685 __ bind(&slow); | 2685 __ bind(&slow); |
| 2686 // Call the runtime to find the function to call (returned in eax) and | 2686 // Call the runtime to find the function to call (returned in eax) and |
| 2687 // the object holding it (returned in edx). | 2687 // the object holding it (returned in edx). |
| 2688 __ push(context_register()); | 2688 __ push(context_register()); |
| 2689 __ push(Immediate(proxy->name())); | 2689 __ push(Immediate(proxy->name())); |
| 2690 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 2690 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
| 2691 __ push(eax); // Function. | 2691 __ push(eax); // Function. |
| 2692 __ push(edx); // Receiver. | 2692 __ push(edx); // Receiver. |
| 2693 | 2693 |
| 2694 // If fast case code has been generated, emit code to push the function | 2694 // If fast case code has been generated, emit code to push the function |
| 2695 // and receiver and have the slow path jump around this code. | 2695 // and receiver and have the slow path jump around this code. |
| 2696 if (done.is_linked()) { | 2696 if (done.is_linked()) { |
| 2697 Label call; | 2697 Label call; |
| 2698 __ jmp(&call, Label::kNear); | 2698 __ jmp(&call, Label::kNear); |
| 2699 __ bind(&done); | 2699 __ bind(&done); |
| 2700 // Push function. | 2700 // Push function. |
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| 4086 } else if (var->IsStackAllocated() || var->IsContextSlot()) { | 4086 } else if (var->IsStackAllocated() || var->IsContextSlot()) { |
| 4087 // Result of deleting non-global variables is false. 'this' is | 4087 // Result of deleting non-global variables is false. 'this' is |
| 4088 // not really a variable, though we implement it as one. The | 4088 // not really a variable, though we implement it as one. The |
| 4089 // subexpression does not have side effects. | 4089 // subexpression does not have side effects. |
| 4090 context()->Plug(var->is_this()); | 4090 context()->Plug(var->is_this()); |
| 4091 } else { | 4091 } else { |
| 4092 // Non-global variable. Call the runtime to try to delete from the | 4092 // Non-global variable. Call the runtime to try to delete from the |
| 4093 // context where the variable was introduced. | 4093 // context where the variable was introduced. |
| 4094 __ push(context_register()); | 4094 __ push(context_register()); |
| 4095 __ push(Immediate(var->name())); | 4095 __ push(Immediate(var->name())); |
| 4096 __ CallRuntime(Runtime::kDeleteContextSlot, 2); | 4096 __ CallRuntime(Runtime::kDeleteLookupSlot, 2); |
| 4097 context()->Plug(eax); | 4097 context()->Plug(eax); |
| 4098 } | 4098 } |
| 4099 } else { | 4099 } else { |
| 4100 // Result of deleting non-property, non-variable reference is true. | 4100 // Result of deleting non-property, non-variable reference is true. |
| 4101 // The subexpression may have side effects. | 4101 // The subexpression may have side effects. |
| 4102 VisitForEffect(expr->expression()); | 4102 VisitForEffect(expr->expression()); |
| 4103 context()->Plug(true); | 4103 context()->Plug(true); |
| 4104 } | 4104 } |
| 4105 break; | 4105 break; |
| 4106 } | 4106 } |
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| 4379 Comment cmnt(masm_, "[ Lookup slot"); | 4379 Comment cmnt(masm_, "[ Lookup slot"); |
| 4380 Label done, slow; | 4380 Label done, slow; |
| 4381 | 4381 |
| 4382 // Generate code for loading from variables potentially shadowed | 4382 // Generate code for loading from variables potentially shadowed |
| 4383 // by eval-introduced variables. | 4383 // by eval-introduced variables. |
| 4384 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); | 4384 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); |
| 4385 | 4385 |
| 4386 __ bind(&slow); | 4386 __ bind(&slow); |
| 4387 __ push(esi); | 4387 __ push(esi); |
| 4388 __ push(Immediate(proxy->name())); | 4388 __ push(Immediate(proxy->name())); |
| 4389 __ CallRuntime(Runtime::kLoadContextSlotNoReferenceError, 2); | 4389 __ CallRuntime(Runtime::kLoadLookupSlotNoReferenceError, 2); |
| 4390 PrepareForBailout(expr, TOS_REG); | 4390 PrepareForBailout(expr, TOS_REG); |
| 4391 __ bind(&done); | 4391 __ bind(&done); |
| 4392 | 4392 |
| 4393 context()->Plug(eax); | 4393 context()->Plug(eax); |
| 4394 } else { | 4394 } else { |
| 4395 // This expression cannot throw a reference error at the top level. | 4395 // This expression cannot throw a reference error at the top level. |
| 4396 VisitInDuplicateContext(expr); | 4396 VisitInDuplicateContext(expr); |
| 4397 } | 4397 } |
| 4398 } | 4398 } |
| 4399 | 4399 |
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| 4796 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4796 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
| 4797 Assembler::target_address_at(call_target_address, | 4797 Assembler::target_address_at(call_target_address, |
| 4798 unoptimized_code)); | 4798 unoptimized_code)); |
| 4799 return OSR_AFTER_STACK_CHECK; | 4799 return OSR_AFTER_STACK_CHECK; |
| 4800 } | 4800 } |
| 4801 | 4801 |
| 4802 | 4802 |
| 4803 } } // namespace v8::internal | 4803 } } // namespace v8::internal |
| 4804 | 4804 |
| 4805 #endif // V8_TARGET_ARCH_IA32 | 4805 #endif // V8_TARGET_ARCH_IA32 |
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