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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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147 masm_(masm), | 147 masm_(masm), |
148 info_(NULL), | 148 info_(NULL), |
149 frame_(NULL), | 149 frame_(NULL), |
150 allocator_(NULL), | 150 allocator_(NULL), |
151 state_(NULL), | 151 state_(NULL), |
152 loop_nesting_(0), | 152 loop_nesting_(0), |
153 in_safe_int32_mode_(false), | 153 in_safe_int32_mode_(false), |
154 safe_int32_mode_enabled_(true), | 154 safe_int32_mode_enabled_(true), |
155 function_return_is_shadowed_(false), | 155 function_return_is_shadowed_(false), |
156 in_spilled_code_(false), | 156 in_spilled_code_(false), |
157 jit_cookie_((FLAG_mask_constants_with_cookie) ? V8::Random() : 0) { | 157 jit_cookie_((FLAG_mask_constants_with_cookie) ? V8::RandomPrivate() : 0) { |
158 } | 158 } |
159 | 159 |
160 | 160 |
161 // Calling conventions: | 161 // Calling conventions: |
162 // ebp: caller's frame pointer | 162 // ebp: caller's frame pointer |
163 // esp: stack pointer | 163 // esp: stack pointer |
164 // edi: called JS function | 164 // edi: called JS function |
165 // esi: callee's context | 165 // esi: callee's context |
166 | 166 |
167 void CodeGenerator::Generate(CompilationInfo* info) { | 167 void CodeGenerator::Generate(CompilationInfo* info) { |
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679 } | 679 } |
680 } | 680 } |
681 } | 681 } |
682 ASSERT(has_valid_frame()); | 682 ASSERT(has_valid_frame()); |
683 ASSERT(frame_->height() == original_height + 1); | 683 ASSERT(frame_->height() == original_height + 1); |
684 } | 684 } |
685 | 685 |
686 | 686 |
687 void CodeGenerator::LoadGlobal() { | 687 void CodeGenerator::LoadGlobal() { |
688 if (in_spilled_code()) { | 688 if (in_spilled_code()) { |
689 frame_->EmitPush(GlobalObject()); | 689 frame_->EmitPush(GlobalObjectOperand()); |
690 } else { | 690 } else { |
691 Result temp = allocator_->Allocate(); | 691 Result temp = allocator_->Allocate(); |
692 __ mov(temp.reg(), GlobalObject()); | 692 __ mov(temp.reg(), GlobalObjectOperand()); |
693 frame_->Push(&temp); | 693 frame_->Push(&temp); |
694 } | 694 } |
695 } | 695 } |
696 | 696 |
697 | 697 |
698 void CodeGenerator::LoadGlobalReceiver() { | 698 void CodeGenerator::LoadGlobalReceiver() { |
699 Result temp = allocator_->Allocate(); | 699 Result temp = allocator_->Allocate(); |
700 Register reg = temp.reg(); | 700 Register reg = temp.reg(); |
701 __ mov(reg, GlobalObject()); | 701 __ mov(reg, GlobalObjectOperand()); |
702 __ mov(reg, FieldOperand(reg, GlobalObject::kGlobalReceiverOffset)); | 702 __ mov(reg, FieldOperand(reg, GlobalObject::kGlobalReceiverOffset)); |
703 frame_->Push(&temp); | 703 frame_->Push(&temp); |
704 } | 704 } |
705 | 705 |
706 | 706 |
707 void CodeGenerator::LoadTypeofExpression(Expression* expr) { | 707 void CodeGenerator::LoadTypeofExpression(Expression* expr) { |
708 // Special handling of identifiers as subexpressions of typeof. | 708 // Special handling of identifiers as subexpressions of typeof. |
709 Variable* variable = expr->AsVariableProxy()->AsVariable(); | 709 Variable* variable = expr->AsVariableProxy()->AsVariable(); |
710 if (variable != NULL && !variable->is_this() && variable->is_global()) { | 710 if (variable != NULL && !variable->is_this() && variable->is_global()) { |
711 // For a global variable we build the property reference | 711 // For a global variable we build the property reference |
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6287 Reference ref(this, property); | 6287 Reference ref(this, property); |
6288 ref.GetValue(); | 6288 ref.GetValue(); |
6289 // Use global object as receiver. | 6289 // Use global object as receiver. |
6290 LoadGlobalReceiver(); | 6290 LoadGlobalReceiver(); |
6291 // Call the function. | 6291 // Call the function. |
6292 CallWithArguments(args, RECEIVER_MIGHT_BE_VALUE, node->position()); | 6292 CallWithArguments(args, RECEIVER_MIGHT_BE_VALUE, node->position()); |
6293 } else { | 6293 } else { |
6294 // Push the receiver onto the frame. | 6294 // Push the receiver onto the frame. |
6295 Load(property->obj()); | 6295 Load(property->obj()); |
6296 | 6296 |
| 6297 // Load the name of the function. |
| 6298 Load(property->key()); |
| 6299 |
| 6300 // Swap the name of the function and the receiver on the stack to follow |
| 6301 // the calling convention for call ICs. |
| 6302 Result key = frame_->Pop(); |
| 6303 Result receiver = frame_->Pop(); |
| 6304 frame_->Push(&key); |
| 6305 frame_->Push(&receiver); |
| 6306 key.Unuse(); |
| 6307 receiver.Unuse(); |
| 6308 |
6297 // Load the arguments. | 6309 // Load the arguments. |
6298 int arg_count = args->length(); | 6310 int arg_count = args->length(); |
6299 for (int i = 0; i < arg_count; i++) { | 6311 for (int i = 0; i < arg_count; i++) { |
6300 Load(args->at(i)); | 6312 Load(args->at(i)); |
6301 frame_->SpillTop(); | 6313 frame_->SpillTop(); |
6302 } | 6314 } |
6303 | 6315 |
6304 // Load the name of the function. | 6316 // Place the key on top of stack and call the IC initialization code. |
6305 Load(property->key()); | 6317 frame_->PushElementAt(arg_count + 1); |
6306 | |
6307 // Call the IC initialization code. | |
6308 CodeForSourcePosition(node->position()); | 6318 CodeForSourcePosition(node->position()); |
6309 Result result = | 6319 Result result = |
6310 frame_->CallKeyedCallIC(RelocInfo::CODE_TARGET, | 6320 frame_->CallKeyedCallIC(RelocInfo::CODE_TARGET, |
6311 arg_count, | 6321 arg_count, |
6312 loop_nesting()); | 6322 loop_nesting()); |
| 6323 frame_->Drop(); // Drop the key still on the stack. |
6313 frame_->RestoreContextRegister(); | 6324 frame_->RestoreContextRegister(); |
6314 frame_->Push(&result); | 6325 frame_->Push(&result); |
6315 } | 6326 } |
6316 } | 6327 } |
6317 | 6328 |
6318 } else { | 6329 } else { |
6319 // ---------------------------------- | 6330 // ---------------------------------- |
6320 // JavaScript example: 'foo(1, 2, 3)' // foo is not global | 6331 // JavaScript example: 'foo(1, 2, 3)' // foo is not global |
6321 // ---------------------------------- | 6332 // ---------------------------------- |
6322 | 6333 |
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6771 // If a valueOf property is not found on the object check that it's | 6782 // If a valueOf property is not found on the object check that it's |
6772 // prototype is the un-modified String prototype. If not result is false. | 6783 // prototype is the un-modified String prototype. If not result is false. |
6773 __ mov(scratch1_, FieldOperand(map_result_, Map::kPrototypeOffset)); | 6784 __ mov(scratch1_, FieldOperand(map_result_, Map::kPrototypeOffset)); |
6774 __ test(scratch1_, Immediate(kSmiTagMask)); | 6785 __ test(scratch1_, Immediate(kSmiTagMask)); |
6775 __ j(zero, &false_result); | 6786 __ j(zero, &false_result); |
6776 __ mov(scratch1_, FieldOperand(scratch1_, HeapObject::kMapOffset)); | 6787 __ mov(scratch1_, FieldOperand(scratch1_, HeapObject::kMapOffset)); |
6777 __ mov(scratch2_, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX))); | 6788 __ mov(scratch2_, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX))); |
6778 __ mov(scratch2_, | 6789 __ mov(scratch2_, |
6779 FieldOperand(scratch2_, GlobalObject::kGlobalContextOffset)); | 6790 FieldOperand(scratch2_, GlobalObject::kGlobalContextOffset)); |
6780 __ cmp(scratch1_, | 6791 __ cmp(scratch1_, |
6781 CodeGenerator::ContextOperand( | 6792 ContextOperand(scratch2_, |
6782 scratch2_, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX)); | 6793 Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX)); |
6783 __ j(not_equal, &false_result); | 6794 __ j(not_equal, &false_result); |
6784 // Set the bit in the map to indicate that it has been checked safe for | 6795 // Set the bit in the map to indicate that it has been checked safe for |
6785 // default valueOf and set true result. | 6796 // default valueOf and set true result. |
6786 __ or_(FieldOperand(map_result_, Map::kBitField2Offset), | 6797 __ or_(FieldOperand(map_result_, Map::kBitField2Offset), |
6787 Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf)); | 6798 Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf)); |
6788 __ Set(map_result_, Immediate(1)); | 6799 __ Set(map_result_, Immediate(1)); |
6789 __ jmp(exit_label()); | 6800 __ jmp(exit_label()); |
6790 __ bind(&false_result); | 6801 __ bind(&false_result); |
6791 // Set false result. | 6802 // Set false result. |
6792 __ Set(map_result_, Immediate(0)); | 6803 __ Set(map_result_, Immediate(0)); |
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7927 } | 7938 } |
7928 | 7939 |
7929 ZoneList<Expression*>* args = node->arguments(); | 7940 ZoneList<Expression*>* args = node->arguments(); |
7930 Comment cmnt(masm_, "[ CallRuntime"); | 7941 Comment cmnt(masm_, "[ CallRuntime"); |
7931 Runtime::Function* function = node->function(); | 7942 Runtime::Function* function = node->function(); |
7932 | 7943 |
7933 if (function == NULL) { | 7944 if (function == NULL) { |
7934 // Push the builtins object found in the current global object. | 7945 // Push the builtins object found in the current global object. |
7935 Result temp = allocator()->Allocate(); | 7946 Result temp = allocator()->Allocate(); |
7936 ASSERT(temp.is_valid()); | 7947 ASSERT(temp.is_valid()); |
7937 __ mov(temp.reg(), GlobalObject()); | 7948 __ mov(temp.reg(), GlobalObjectOperand()); |
7938 __ mov(temp.reg(), FieldOperand(temp.reg(), GlobalObject::kBuiltinsOffset)); | 7949 __ mov(temp.reg(), FieldOperand(temp.reg(), GlobalObject::kBuiltinsOffset)); |
7939 frame_->Push(&temp); | 7950 frame_->Push(&temp); |
7940 } | 7951 } |
7941 | 7952 |
7942 // Push the arguments ("left-to-right"). | 7953 // Push the arguments ("left-to-right"). |
7943 int arg_count = args->length(); | 7954 int arg_count = args->length(); |
7944 for (int i = 0; i < arg_count; i++) { | 7955 for (int i = 0; i < arg_count; i++) { |
7945 Load(args->at(i)); | 7956 Load(args->at(i)); |
7946 } | 7957 } |
7947 | 7958 |
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10071 masm.GetCode(&desc); | 10082 masm.GetCode(&desc); |
10072 // Call the function from C++. | 10083 // Call the function from C++. |
10073 return FUNCTION_CAST<MemCopyFunction>(buffer); | 10084 return FUNCTION_CAST<MemCopyFunction>(buffer); |
10074 } | 10085 } |
10075 | 10086 |
10076 #undef __ | 10087 #undef __ |
10077 | 10088 |
10078 } } // namespace v8::internal | 10089 } } // namespace v8::internal |
10079 | 10090 |
10080 #endif // V8_TARGET_ARCH_IA32 | 10091 #endif // V8_TARGET_ARCH_IA32 |
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