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Issue 6685088: Merge isolates to bleeding_edge. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 9 years, 9 months ago
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1 // Copyright 2008 the V8 project authors. All rights reserved. 1 // Copyright 2008 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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128 virtual void Bind(); 128 virtual void Bind();
129 virtual void Bind(Result* arg); 129 virtual void Bind(Result* arg);
130 void Bind(Result* arg0, Result* arg1); 130 void Bind(Result* arg0, Result* arg1);
131 131
132 // Emit a call to a jump target. There must be a current frame at 132 // Emit a call to a jump target. There must be a current frame at
133 // the call. The frame at the target is the same as the current 133 // the call. The frame at the target is the same as the current
134 // frame except for an extra return address on top of it. The frame 134 // frame except for an extra return address on top of it. The frame
135 // after the call is the same as the frame before the call. 135 // after the call is the same as the frame before the call.
136 void Call(); 136 void Call();
137 137
138 static void set_compiling_deferred_code(bool flag) {
139 compiling_deferred_code_ = flag;
140 }
141
142 protected: 138 protected:
143 // Directionality flag set at initialization time. 139 // Directionality flag set at initialization time.
144 Directionality direction_; 140 Directionality direction_;
145 141
146 // A list of frames reaching this block via forward jumps. 142 // A list of frames reaching this block via forward jumps.
147 ZoneList<VirtualFrame*> reaching_frames_; 143 ZoneList<VirtualFrame*> reaching_frames_;
148 144
149 // A parallel list of labels for merge code. 145 // A parallel list of labels for merge code.
150 ZoneList<Label> merge_labels_; 146 ZoneList<Label> merge_labels_;
151 147
152 // The frame used on entry to the block and expected at backward 148 // The frame used on entry to the block and expected at backward
153 // jumps to the block. Set when the jump target is bound, but may 149 // jumps to the block. Set when the jump target is bound, but may
154 // or may not be set for forward-only blocks. 150 // or may not be set for forward-only blocks.
155 VirtualFrame* entry_frame_; 151 VirtualFrame* entry_frame_;
156 152
157 // The actual entry label of the block. 153 // The actual entry label of the block.
158 Label entry_label_; 154 Label entry_label_;
159 155
160 // Implementations of Jump, Branch, and Bind with all arguments and 156 // Implementations of Jump, Branch, and Bind with all arguments and
161 // return values using the virtual frame. 157 // return values using the virtual frame.
162 void DoJump(); 158 void DoJump();
163 void DoBranch(Condition cc, Hint hint); 159 void DoBranch(Condition cc, Hint hint);
164 void DoBind(); 160 void DoBind();
165 161
166 private: 162 private:
167 static bool compiling_deferred_code_;
168
169 // Add a virtual frame reaching this labeled block via a forward jump, 163 // Add a virtual frame reaching this labeled block via a forward jump,
170 // and a corresponding merge code label. 164 // and a corresponding merge code label.
171 void AddReachingFrame(VirtualFrame* frame); 165 void AddReachingFrame(VirtualFrame* frame);
172 166
173 // Perform initialization required during entry frame computation 167 // Perform initialization required during entry frame computation
174 // after setting the virtual frame element at index in frame to be 168 // after setting the virtual frame element at index in frame to be
175 // target. 169 // target.
176 inline void InitializeEntryElement(int index, FrameElement* target); 170 inline void InitializeEntryElement(int index, FrameElement* target);
177 171
178 // Compute a frame to use for entry to this block. 172 // Compute a frame to use for entry to this block.
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235 // The expected height of the expression stack where the target will 229 // The expected height of the expression stack where the target will
236 // be bound, statically known at initialization time. 230 // be bound, statically known at initialization time.
237 int expected_height_; 231 int expected_height_;
238 232
239 DISALLOW_COPY_AND_ASSIGN(BreakTarget); 233 DISALLOW_COPY_AND_ASSIGN(BreakTarget);
240 }; 234 };
241 235
242 } } // namespace v8::internal 236 } } // namespace v8::internal
243 237
244 #endif // V8_JUMP_TARGET_HEAVY_H_ 238 #endif // V8_JUMP_TARGET_HEAVY_H_
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