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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_X87 | 5 #if V8_TARGET_ARCH_X87 |
6 | 6 |
7 #include "src/code-factory.h" | 7 #include "src/code-factory.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/compiler.h" | |
11 #include "src/debug/debug.h" | 10 #include "src/debug/debug.h" |
12 #include "src/full-codegen/full-codegen.h" | 11 #include "src/full-codegen/full-codegen.h" |
13 #include "src/ic/ic.h" | 12 #include "src/ic/ic.h" |
14 #include "src/parser.h" | 13 #include "src/parser.h" |
15 #include "src/scopes.h" | 14 #include "src/scopes.h" |
16 #include "src/x87/frames-x87.h" | 15 #include "src/x87/frames-x87.h" |
17 | 16 |
18 namespace v8 { | 17 namespace v8 { |
19 namespace internal { | 18 namespace internal { |
20 | 19 |
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126 __ bind(&ok); | 125 __ bind(&ok); |
127 } | 126 } |
128 | 127 |
129 // Open a frame scope to indicate that there is a frame on the stack. The | 128 // Open a frame scope to indicate that there is a frame on the stack. The |
130 // MANUAL indicates that the scope shouldn't actually generate code to set up | 129 // MANUAL indicates that the scope shouldn't actually generate code to set up |
131 // the frame (that is done below). | 130 // the frame (that is done below). |
132 FrameScope frame_scope(masm_, StackFrame::MANUAL); | 131 FrameScope frame_scope(masm_, StackFrame::MANUAL); |
133 | 132 |
134 info->set_prologue_offset(masm_->pc_offset()); | 133 info->set_prologue_offset(masm_->pc_offset()); |
135 __ Prologue(info->IsCodePreAgingActive()); | 134 __ Prologue(info->IsCodePreAgingActive()); |
136 info->AddNoFrameRange(0, masm_->pc_offset()); | |
137 | 135 |
138 { Comment cmnt(masm_, "[ Allocate locals"); | 136 { Comment cmnt(masm_, "[ Allocate locals"); |
139 int locals_count = info->scope()->num_stack_slots(); | 137 int locals_count = info->scope()->num_stack_slots(); |
140 // Generators allocate locals, if any, in context slots. | 138 // Generators allocate locals, if any, in context slots. |
141 DCHECK(!IsGeneratorFunction(literal()->kind()) || locals_count == 0); | 139 DCHECK(!IsGeneratorFunction(literal()->kind()) || locals_count == 0); |
142 if (locals_count == 1) { | 140 if (locals_count == 1) { |
143 __ push(Immediate(isolate()->factory()->undefined_value())); | 141 __ push(Immediate(isolate()->factory()->undefined_value())); |
144 } else if (locals_count > 1) { | 142 } else if (locals_count > 1) { |
145 if (locals_count >= 128) { | 143 if (locals_count >= 128) { |
146 Label ok; | 144 Label ok; |
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426 Label ok; | 424 Label ok; |
427 __ j(positive, &ok, Label::kNear); | 425 __ j(positive, &ok, Label::kNear); |
428 __ push(eax); | 426 __ push(eax); |
429 __ call(isolate()->builtins()->InterruptCheck(), | 427 __ call(isolate()->builtins()->InterruptCheck(), |
430 RelocInfo::CODE_TARGET); | 428 RelocInfo::CODE_TARGET); |
431 __ pop(eax); | 429 __ pop(eax); |
432 EmitProfilingCounterReset(); | 430 EmitProfilingCounterReset(); |
433 __ bind(&ok); | 431 __ bind(&ok); |
434 | 432 |
435 SetReturnPosition(literal()); | 433 SetReturnPosition(literal()); |
436 int no_frame_start = masm_->pc_offset(); | |
437 __ leave(); | 434 __ leave(); |
438 | 435 |
439 int arg_count = info_->scope()->num_parameters() + 1; | 436 int arg_count = info_->scope()->num_parameters() + 1; |
440 int arguments_bytes = arg_count * kPointerSize; | 437 int arguments_bytes = arg_count * kPointerSize; |
441 __ Ret(arguments_bytes, ecx); | 438 __ Ret(arguments_bytes, ecx); |
442 info_->AddNoFrameRange(no_frame_start, masm_->pc_offset()); | |
443 } | 439 } |
444 } | 440 } |
445 | 441 |
446 | 442 |
447 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const { | 443 void FullCodeGenerator::StackValueContext::Plug(Variable* var) const { |
448 DCHECK(var->IsStackAllocated() || var->IsContextSlot()); | 444 DCHECK(var->IsStackAllocated() || var->IsContextSlot()); |
449 MemOperand operand = codegen()->VarOperand(var, result_register()); | 445 MemOperand operand = codegen()->VarOperand(var, result_register()); |
450 // Memory operands can be pushed directly. | 446 // Memory operands can be pushed directly. |
451 __ push(operand); | 447 __ push(operand); |
452 } | 448 } |
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5133 Assembler::target_address_at(call_target_address, | 5129 Assembler::target_address_at(call_target_address, |
5134 unoptimized_code)); | 5130 unoptimized_code)); |
5135 return OSR_AFTER_STACK_CHECK; | 5131 return OSR_AFTER_STACK_CHECK; |
5136 } | 5132 } |
5137 | 5133 |
5138 | 5134 |
5139 } // namespace internal | 5135 } // namespace internal |
5140 } // namespace v8 | 5136 } // namespace v8 |
5141 | 5137 |
5142 #endif // V8_TARGET_ARCH_X87 | 5138 #endif // V8_TARGET_ARCH_X87 |
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