OLD | NEW |
1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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 |
(...skipping 162 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
173 // the physical frame for storing frame-allocated locals. | 173 // the physical frame for storing frame-allocated locals. |
174 void Enter(); | 174 void Enter(); |
175 void Exit(); | 175 void Exit(); |
176 | 176 |
177 // Prepare for returning from the frame by spilling locals and | 177 // Prepare for returning from the frame by spilling locals and |
178 // dropping all non-locals elements in the virtual frame. This | 178 // dropping all non-locals elements in the virtual frame. This |
179 // avoids generating unnecessary merge code when jumping to the | 179 // avoids generating unnecessary merge code when jumping to the |
180 // shared return site. Emits code for spills. | 180 // shared return site. Emits code for spills. |
181 void PrepareForReturn(); | 181 void PrepareForReturn(); |
182 | 182 |
| 183 // Number of local variables after when we use a loop for allocating. |
| 184 static const int kLocalVarBound = 5; |
| 185 |
183 // Allocate and initialize the frame-allocated locals. | 186 // Allocate and initialize the frame-allocated locals. |
184 void AllocateStackSlots(); | 187 void AllocateStackSlots(); |
185 | 188 |
186 // The current top of the expression stack as an assembly operand. | 189 // The current top of the expression stack as an assembly operand. |
187 MemOperand Top() { return MemOperand(sp, 0); } | 190 MemOperand Top() { return MemOperand(sp, 0); } |
188 | 191 |
189 // An element of the expression stack as an assembly operand. | 192 // An element of the expression stack as an assembly operand. |
190 MemOperand ElementAt(int index) { | 193 MemOperand ElementAt(int index) { |
191 return MemOperand(sp, index * kPointerSize); | 194 return MemOperand(sp, index * kPointerSize); |
192 } | 195 } |
(...skipping 327 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
520 | 523 |
521 // Classes that need raw access to the elements_ array. | 524 // Classes that need raw access to the elements_ array. |
522 friend class DeferredCode; | 525 friend class DeferredCode; |
523 friend class JumpTarget; | 526 friend class JumpTarget; |
524 }; | 527 }; |
525 | 528 |
526 | 529 |
527 } } // namespace v8::internal | 530 } } // namespace v8::internal |
528 | 531 |
529 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ | 532 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ |
OLD | NEW |