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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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85 | 85 |
86 #include "register-allocator.h" | 86 #include "register-allocator.h" |
87 | 87 |
88 namespace v8 { | 88 namespace v8 { |
89 namespace internal { | 89 namespace internal { |
90 | 90 |
91 // Code generation can be nested. Code generation scopes form a stack | 91 // Code generation can be nested. Code generation scopes form a stack |
92 // of active code generators. | 92 // of active code generators. |
93 class CodeGeneratorScope BASE_EMBEDDED { | 93 class CodeGeneratorScope BASE_EMBEDDED { |
94 public: | 94 public: |
95 explicit CodeGeneratorScope(CodeGenerator* cgen) { | 95 explicit CodeGeneratorScope(Isolate* isolate, CodeGenerator* cgen) |
96 previous_ = top_; | 96 : isolate_(isolate) { |
97 top_ = cgen; | 97 previous_ = isolate->current_code_generator(); |
| 98 isolate->set_current_code_generator(cgen); |
98 } | 99 } |
99 | 100 |
100 ~CodeGeneratorScope() { | 101 ~CodeGeneratorScope() { |
101 top_ = previous_; | 102 isolate_->set_current_code_generator(previous_); |
102 } | 103 } |
103 | 104 |
104 static CodeGenerator* Current() { | 105 static CodeGenerator* Current(Isolate* isolate) { |
105 ASSERT(top_ != NULL); | 106 ASSERT(isolate->current_code_generator() != NULL); |
106 return top_; | 107 return isolate->current_code_generator(); |
107 } | 108 } |
108 | 109 |
109 private: | 110 private: |
110 static CodeGenerator* top_; | |
111 CodeGenerator* previous_; | 111 CodeGenerator* previous_; |
| 112 Isolate* isolate_; |
112 }; | 113 }; |
113 | 114 |
114 | |
115 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64 | 115 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64 |
116 | 116 |
117 // State of used registers in a virtual frame. | 117 // State of used registers in a virtual frame. |
118 class FrameRegisterState { | 118 class FrameRegisterState { |
119 public: | 119 public: |
120 // Captures the current state of the given frame. | 120 // Captures the current state of the given frame. |
121 explicit FrameRegisterState(VirtualFrame* frame); | 121 explicit FrameRegisterState(VirtualFrame* frame); |
122 | 122 |
123 // Saves the state in the stack. | 123 // Saves the state in the stack. |
124 void Save(MacroAssembler* masm) const; | 124 void Save(MacroAssembler* masm) const; |
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236 #ifdef DEBUG | 236 #ifdef DEBUG |
237 const char* comment_; | 237 const char* comment_; |
238 #endif | 238 #endif |
239 DISALLOW_COPY_AND_ASSIGN(DeferredCode); | 239 DISALLOW_COPY_AND_ASSIGN(DeferredCode); |
240 }; | 240 }; |
241 | 241 |
242 | 242 |
243 } } // namespace v8::internal | 243 } } // namespace v8::internal |
244 | 244 |
245 #endif // V8_CODEGEN_H_ | 245 #endif // V8_CODEGEN_H_ |
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