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Issue 552232: Introduce a stack-allocated structure to encapsulate compile-time information. (Closed)
Patch Set: Remove inadvertently included files. Created 10 years, 10 months ago
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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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119 in_spilled_code_(false) { 119 in_spilled_code_(false) {
120 } 120 }
121 121
122 122
123 // Calling conventions: 123 // Calling conventions:
124 // ebp: caller's frame pointer 124 // ebp: caller's frame pointer
125 // esp: stack pointer 125 // esp: stack pointer
126 // edi: called JS function 126 // edi: called JS function
127 // esi: callee's context 127 // esi: callee's context
128 128
129 void CodeGenerator::GenCode(FunctionLiteral* fun) { 129 void CodeGenerator::GenCode(FunctionLiteral* fun, CompilationInfo* info) {
130 // Record the position for debugging purposes. 130 // Record the position for debugging purposes.
131 CodeForFunctionPosition(fun); 131 CodeForFunctionPosition(fun);
132 132
133 ZoneList<Statement*>* body = fun->body(); 133 ZoneList<Statement*>* body = fun->body();
134 134
135 // Initialize state. 135 // Initialize state.
136 ASSERT(scope_ == NULL); 136 ASSERT(scope_ == NULL);
137 scope_ = fun->scope(); 137 scope_ = fun->scope();
138 ASSERT(allocator_ == NULL); 138 ASSERT(allocator_ == NULL);
139 RegisterAllocator register_allocator(this); 139 RegisterAllocator register_allocator(this);
140 allocator_ = &register_allocator; 140 allocator_ = &register_allocator;
141 ASSERT(frame_ == NULL); 141 ASSERT(frame_ == NULL);
142 frame_ = new VirtualFrame(); 142 frame_ = new VirtualFrame();
143 set_in_spilled_code(false); 143 set_in_spilled_code(false);
144 144
145 // Adjust for function-level loop nesting. 145 // Adjust for function-level loop nesting.
146 loop_nesting_ += fun->loop_nesting(); 146 loop_nesting_ += info->loop_nesting();
147 147
148 JumpTarget::set_compiling_deferred_code(false); 148 JumpTarget::set_compiling_deferred_code(false);
149 149
150 #ifdef DEBUG 150 #ifdef DEBUG
151 if (strlen(FLAG_stop_at) > 0 && 151 if (strlen(FLAG_stop_at) > 0 &&
152 fun->name()->IsEqualTo(CStrVector(FLAG_stop_at))) { 152 fun->name()->IsEqualTo(CStrVector(FLAG_stop_at))) {
153 frame_->SpillAll(); 153 frame_->SpillAll();
154 __ int3(); 154 __ int3();
155 } 155 }
156 #endif 156 #endif
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314 // compile an artificial return statement just above, and (b) there 314 // compile an artificial return statement just above, and (b) there
315 // are return statements in the body but (c) they are all shadowed. 315 // are return statements in the body but (c) they are all shadowed.
316 Result return_value; 316 Result return_value;
317 function_return_.Bind(&return_value); 317 function_return_.Bind(&return_value);
318 GenerateReturnSequence(&return_value); 318 GenerateReturnSequence(&return_value);
319 } 319 }
320 } 320 }
321 } 321 }
322 322
323 // Adjust for function-level loop nesting. 323 // Adjust for function-level loop nesting.
324 loop_nesting_ -= fun->loop_nesting(); 324 loop_nesting_ -= info->loop_nesting();
325 325
326 // Code generation state must be reset. 326 // Code generation state must be reset.
327 ASSERT(state_ == NULL); 327 ASSERT(state_ == NULL);
328 ASSERT(loop_nesting() == 0); 328 ASSERT(loop_nesting() == 0);
329 ASSERT(!function_return_is_shadowed_); 329 ASSERT(!function_return_is_shadowed_);
330 function_return_.Unuse(); 330 function_return_.Unuse();
331 DeleteFrame(); 331 DeleteFrame();
332 332
333 // Process any deferred code using the register allocator. 333 // Process any deferred code using the register allocator.
334 if (!HasStackOverflow()) { 334 if (!HasStackOverflow()) {
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10093 10093
10094 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) 10094 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater)
10095 // tagged as a small integer. 10095 // tagged as a small integer.
10096 __ bind(&runtime); 10096 __ bind(&runtime);
10097 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1); 10097 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1);
10098 } 10098 }
10099 10099
10100 #undef __ 10100 #undef __
10101 10101
10102 } } // namespace v8::internal 10102 } } // namespace v8::internal
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