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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_X87 | 7 #if V8_TARGET_ARCH_X87 |
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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1489 | 1489 |
1490 case Variable::LOOKUP: { | 1490 case Variable::LOOKUP: { |
1491 Comment cmnt(masm_, "[ Lookup variable"); | 1491 Comment cmnt(masm_, "[ Lookup variable"); |
1492 Label done, slow; | 1492 Label done, slow; |
1493 // Generate code for loading from variables potentially shadowed | 1493 // Generate code for loading from variables potentially shadowed |
1494 // by eval-introduced variables. | 1494 // by eval-introduced variables. |
1495 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); | 1495 EmitDynamicLookupFastCase(var, NOT_INSIDE_TYPEOF, &slow, &done); |
1496 __ bind(&slow); | 1496 __ bind(&slow); |
1497 __ push(esi); // Context. | 1497 __ push(esi); // Context. |
1498 __ push(Immediate(var->name())); | 1498 __ push(Immediate(var->name())); |
1499 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 1499 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
1500 __ bind(&done); | 1500 __ bind(&done); |
1501 context()->Plug(eax); | 1501 context()->Plug(eax); |
1502 break; | 1502 break; |
1503 } | 1503 } |
1504 } | 1504 } |
1505 } | 1505 } |
1506 | 1506 |
1507 | 1507 |
1508 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { | 1508 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) { |
1509 Comment cmnt(masm_, "[ RegExpLiteral"); | 1509 Comment cmnt(masm_, "[ RegExpLiteral"); |
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2674 { PreservePositionScope scope(masm()->positions_recorder()); | 2674 { PreservePositionScope scope(masm()->positions_recorder()); |
2675 // Generate code for loading from variables potentially shadowed by | 2675 // Generate code for loading from variables potentially shadowed by |
2676 // eval-introduced variables. | 2676 // eval-introduced variables. |
2677 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); | 2677 EmitDynamicLookupFastCase(proxy->var(), NOT_INSIDE_TYPEOF, &slow, &done); |
2678 } | 2678 } |
2679 __ bind(&slow); | 2679 __ bind(&slow); |
2680 // Call the runtime to find the function to call (returned in eax) and | 2680 // Call the runtime to find the function to call (returned in eax) and |
2681 // the object holding it (returned in edx). | 2681 // the object holding it (returned in edx). |
2682 __ push(context_register()); | 2682 __ push(context_register()); |
2683 __ push(Immediate(proxy->name())); | 2683 __ push(Immediate(proxy->name())); |
2684 __ CallRuntime(Runtime::kLoadContextSlot, 2); | 2684 __ CallRuntime(Runtime::kLoadLookupSlot, 2); |
2685 __ push(eax); // Function. | 2685 __ push(eax); // Function. |
2686 __ push(edx); // Receiver. | 2686 __ push(edx); // Receiver. |
2687 | 2687 |
2688 // If fast case code has been generated, emit code to push the function | 2688 // If fast case code has been generated, emit code to push the function |
2689 // and receiver and have the slow path jump around this code. | 2689 // and receiver and have the slow path jump around this code. |
2690 if (done.is_linked()) { | 2690 if (done.is_linked()) { |
2691 Label call; | 2691 Label call; |
2692 __ jmp(&call, Label::kNear); | 2692 __ jmp(&call, Label::kNear); |
2693 __ bind(&done); | 2693 __ bind(&done); |
2694 // Push function. | 2694 // Push function. |
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4079 } else if (var->IsStackAllocated() || var->IsContextSlot()) { | 4079 } else if (var->IsStackAllocated() || var->IsContextSlot()) { |
4080 // Result of deleting non-global variables is false. 'this' is | 4080 // Result of deleting non-global variables is false. 'this' is |
4081 // not really a variable, though we implement it as one. The | 4081 // not really a variable, though we implement it as one. The |
4082 // subexpression does not have side effects. | 4082 // subexpression does not have side effects. |
4083 context()->Plug(var->is_this()); | 4083 context()->Plug(var->is_this()); |
4084 } else { | 4084 } else { |
4085 // Non-global variable. Call the runtime to try to delete from the | 4085 // Non-global variable. Call the runtime to try to delete from the |
4086 // context where the variable was introduced. | 4086 // context where the variable was introduced. |
4087 __ push(context_register()); | 4087 __ push(context_register()); |
4088 __ push(Immediate(var->name())); | 4088 __ push(Immediate(var->name())); |
4089 __ CallRuntime(Runtime::kDeleteContextSlot, 2); | 4089 __ CallRuntime(Runtime::kDeleteLookupSlot, 2); |
4090 context()->Plug(eax); | 4090 context()->Plug(eax); |
4091 } | 4091 } |
4092 } else { | 4092 } else { |
4093 // Result of deleting non-property, non-variable reference is true. | 4093 // Result of deleting non-property, non-variable reference is true. |
4094 // The subexpression may have side effects. | 4094 // The subexpression may have side effects. |
4095 VisitForEffect(expr->expression()); | 4095 VisitForEffect(expr->expression()); |
4096 context()->Plug(true); | 4096 context()->Plug(true); |
4097 } | 4097 } |
4098 break; | 4098 break; |
4099 } | 4099 } |
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4372 Comment cmnt(masm_, "[ Lookup slot"); | 4372 Comment cmnt(masm_, "[ Lookup slot"); |
4373 Label done, slow; | 4373 Label done, slow; |
4374 | 4374 |
4375 // Generate code for loading from variables potentially shadowed | 4375 // Generate code for loading from variables potentially shadowed |
4376 // by eval-introduced variables. | 4376 // by eval-introduced variables. |
4377 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); | 4377 EmitDynamicLookupFastCase(proxy->var(), INSIDE_TYPEOF, &slow, &done); |
4378 | 4378 |
4379 __ bind(&slow); | 4379 __ bind(&slow); |
4380 __ push(esi); | 4380 __ push(esi); |
4381 __ push(Immediate(proxy->name())); | 4381 __ push(Immediate(proxy->name())); |
4382 __ CallRuntime(Runtime::kLoadContextSlotNoReferenceError, 2); | 4382 __ CallRuntime(Runtime::kLoadLookupSlotNoReferenceError, 2); |
4383 PrepareForBailout(expr, TOS_REG); | 4383 PrepareForBailout(expr, TOS_REG); |
4384 __ bind(&done); | 4384 __ bind(&done); |
4385 | 4385 |
4386 context()->Plug(eax); | 4386 context()->Plug(eax); |
4387 } else { | 4387 } else { |
4388 // This expression cannot throw a reference error at the top level. | 4388 // This expression cannot throw a reference error at the top level. |
4389 VisitInDuplicateContext(expr); | 4389 VisitInDuplicateContext(expr); |
4390 } | 4390 } |
4391 } | 4391 } |
4392 | 4392 |
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4789 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4789 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4790 Assembler::target_address_at(call_target_address, | 4790 Assembler::target_address_at(call_target_address, |
4791 unoptimized_code)); | 4791 unoptimized_code)); |
4792 return OSR_AFTER_STACK_CHECK; | 4792 return OSR_AFTER_STACK_CHECK; |
4793 } | 4793 } |
4794 | 4794 |
4795 | 4795 |
4796 } } // namespace v8::internal | 4796 } } // namespace v8::internal |
4797 | 4797 |
4798 #endif // V8_TARGET_ARCH_X87 | 4798 #endif // V8_TARGET_ARCH_X87 |
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