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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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118 | 118 |
119 Scope* CodeGenerator::scope() { return info_->function()->scope(); } | 119 Scope* CodeGenerator::scope() { return info_->function()->scope(); } |
120 | 120 |
121 | 121 |
122 // Calling conventions: | 122 // Calling conventions: |
123 // ebp: caller's frame pointer | 123 // ebp: caller's frame pointer |
124 // esp: stack pointer | 124 // esp: stack pointer |
125 // edi: called JS function | 125 // edi: called JS function |
126 // esi: callee's context | 126 // esi: callee's context |
127 | 127 |
128 void CodeGenerator::Generate(CompilationInfo* info, Mode mode) { | 128 void CodeGenerator::Generate(CompilationInfo* info) { |
129 // Record the position for debugging purposes. | 129 // Record the position for debugging purposes. |
130 CodeForFunctionPosition(info->function()); | 130 CodeForFunctionPosition(info->function()); |
131 | 131 |
132 // Initialize state. | 132 // Initialize state. |
133 info_ = info; | 133 info_ = info; |
134 ASSERT(allocator_ == NULL); | 134 ASSERT(allocator_ == NULL); |
135 RegisterAllocator register_allocator(this); | 135 RegisterAllocator register_allocator(this); |
136 allocator_ = ®ister_allocator; | 136 allocator_ = ®ister_allocator; |
137 ASSERT(frame_ == NULL); | 137 ASSERT(frame_ == NULL); |
138 frame_ = new VirtualFrame(); | 138 frame_ = new VirtualFrame(); |
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157 CodeGenState state(this); | 157 CodeGenState state(this); |
158 | 158 |
159 // Entry: | 159 // Entry: |
160 // Stack: receiver, arguments, return address. | 160 // Stack: receiver, arguments, return address. |
161 // ebp: caller's frame pointer | 161 // ebp: caller's frame pointer |
162 // esp: stack pointer | 162 // esp: stack pointer |
163 // edi: called JS function | 163 // edi: called JS function |
164 // esi: callee's context | 164 // esi: callee's context |
165 allocator_->Initialize(); | 165 allocator_->Initialize(); |
166 | 166 |
167 if (mode == PRIMARY) { | 167 if (info->mode() == CompilationInfo::PRIMARY) { |
168 frame_->Enter(); | 168 frame_->Enter(); |
169 | 169 |
170 // Allocate space for locals and initialize them. | 170 // Allocate space for locals and initialize them. |
171 frame_->AllocateStackSlots(); | 171 frame_->AllocateStackSlots(); |
172 | 172 |
173 // Allocate the local context if needed. | 173 // Allocate the local context if needed. |
174 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; | 174 int heap_slots = scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS; |
175 if (heap_slots > 0) { | 175 if (heap_slots > 0) { |
176 Comment cmnt(masm_, "[ allocate local context"); | 176 Comment cmnt(masm_, "[ allocate local context"); |
177 // Allocate local context. | 177 // Allocate local context. |
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248 if (scope()->is_function_scope() && scope()->function() != NULL) { | 248 if (scope()->is_function_scope() && scope()->function() != NULL) { |
249 frame_->Push(Factory::the_hole_value()); | 249 frame_->Push(Factory::the_hole_value()); |
250 StoreToSlot(scope()->function()->slot(), NOT_CONST_INIT); | 250 StoreToSlot(scope()->function()->slot(), NOT_CONST_INIT); |
251 } | 251 } |
252 } else { | 252 } else { |
253 // When used as the secondary compiler for splitting, ebp, esi, | 253 // When used as the secondary compiler for splitting, ebp, esi, |
254 // and edi have been pushed on the stack. Adjust the virtual | 254 // and edi have been pushed on the stack. Adjust the virtual |
255 // frame to match this state. | 255 // frame to match this state. |
256 frame_->Adjust(3); | 256 frame_->Adjust(3); |
257 allocator_->Unuse(edi); | 257 allocator_->Unuse(edi); |
| 258 |
| 259 // Bind all the bailout labels to the beginning of the function. |
| 260 List<CompilationInfo::Bailout*>* bailouts = info->bailouts(); |
| 261 for (int i = 0; i < bailouts->length(); i++) { |
| 262 __ bind(bailouts->at(i)->label()); |
| 263 } |
258 } | 264 } |
259 | 265 |
260 // Initialize the function return target after the locals are set | 266 // Initialize the function return target after the locals are set |
261 // up, because it needs the expected frame height from the frame. | 267 // up, because it needs the expected frame height from the frame. |
262 function_return_.set_direction(JumpTarget::BIDIRECTIONAL); | 268 function_return_.set_direction(JumpTarget::BIDIRECTIONAL); |
263 function_return_is_shadowed_ = false; | 269 function_return_is_shadowed_ = false; |
264 | 270 |
265 // Generate code to 'execute' declarations and initialize functions | 271 // Generate code to 'execute' declarations and initialize functions |
266 // (source elements). In case of an illegal redeclaration we need to | 272 // (source elements). In case of an illegal redeclaration we need to |
267 // handle that instead of processing the declarations. | 273 // handle that instead of processing the declarations. |
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10775 | 10781 |
10776 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) | 10782 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) |
10777 // tagged as a small integer. | 10783 // tagged as a small integer. |
10778 __ bind(&runtime); | 10784 __ bind(&runtime); |
10779 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1); | 10785 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1); |
10780 } | 10786 } |
10781 | 10787 |
10782 #undef __ | 10788 #undef __ |
10783 | 10789 |
10784 } } // namespace v8::internal | 10790 } } // namespace v8::internal |
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