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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_FRAME_H_ | 5 #ifndef V8_COMPILER_FRAME_H_ |
6 #define V8_COMPILER_FRAME_H_ | 6 #define V8_COMPILER_FRAME_H_ |
7 | 7 |
8 #include "src/bit-vector.h" | 8 #include "src/bit-vector.h" |
9 #include "src/frames.h" | 9 #include "src/frames.h" |
10 | 10 |
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52 // -n | | Caller | 52 // -n | | Caller |
53 // ... | ... | frame slots | 53 // ... | ... | frame slots |
54 // -2 | parameter n-1 | (slot < 0) | 54 // -2 | parameter n-1 | (slot < 0) |
55 // |- - - - - - - - -| | | 55 // |- - - - - - - - -| | |
56 // -1 | parameter n | v | 56 // -1 | parameter n | v |
57 // -----+-----------------+-------------------------------- | 57 // -----+-----------------+-------------------------------- |
58 // 0 | return addr | ^ ^ | 58 // 0 | return addr | ^ ^ |
59 // |- - - - - - - - -| | | | 59 // |- - - - - - - - -| | | |
60 // 1 | saved frame ptr | Fixed | | 60 // 1 | saved frame ptr | Fixed | |
61 // |- - - - - - - - -| Header <-- frame ptr | | 61 // |- - - - - - - - -| Header <-- frame ptr | |
62 // 2 | Context | | | | 62 // 2 | Marker/Context | | | |
63 // |- - - - - - - - -| | | | 63 // |- - - - - - - - -| | | |
64 // 3 |JSFunction/Marker| v | | 64 // 3 | [JSFunction] | v | |
65 // +-----------------+---- | | 65 // +-----------------+---- | |
66 // 4 | spill 1 | ^ Callee | 66 // 4 | spill 1 | ^ Callee |
67 // |- - - - - - - - -| | frame slots | 67 // |- - - - - - - - -| | frame slots |
68 // ... | ... | Spill slots (slot >= 0) | 68 // ... | ... | Spill slots (slot >= 0) |
69 // |- - - - - - - - -| | | | 69 // |- - - - - - - - -| | | |
70 // m+3 | spill m | v | | 70 // m+3 | spill m | v | |
71 // +-----------------+---- | | 71 // +-----------------+---- | |
72 // m+4 | callee-saved 1 | ^ | | 72 // m+4 | callee-saved 1 | ^ | |
73 // |- - - - - - - - -| | | | 73 // |- - - - - - - - -| | | |
74 // | ... | Callee-saved | | 74 // | ... | Callee-saved | |
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229 private: | 229 private: |
230 Frame* const frame_; | 230 Frame* const frame_; |
231 bool access_frame_with_fp_; | 231 bool access_frame_with_fp_; |
232 int sp_delta_; | 232 int sp_delta_; |
233 }; | 233 }; |
234 } // namespace compiler | 234 } // namespace compiler |
235 } // namespace internal | 235 } // namespace internal |
236 } // namespace v8 | 236 } // namespace v8 |
237 | 237 |
238 #endif // V8_COMPILER_FRAME_H_ | 238 #endif // V8_COMPILER_FRAME_H_ |
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