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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/v8.h" | |
| 9 | |
| 10 #include "src/bit-vector.h" | 8 #include "src/bit-vector.h" |
| 11 | 9 |
| 12 namespace v8 { | 10 namespace v8 { |
| 13 namespace internal { | 11 namespace internal { |
| 14 namespace compiler { | 12 namespace compiler { |
| 15 | 13 |
| 16 // Collects the spill slot requirements and the allocated general and double | 14 // Collects the spill slot requirements and the allocated general and double |
| 17 // registers for a compiled function. Frames are usually populated by the | 15 // registers for a compiled function. Frames are usually populated by the |
| 18 // register allocator and are used by Linkage to generate code for the prologue | 16 // register allocator and are used by Linkage to generate code for the prologue |
| 19 // and epilogue to compiled code. | 17 // and epilogue to compiled code. |
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| 112 int offset_; // Encodes SP or FP in the low order bit. | 110 int offset_; // Encodes SP or FP in the low order bit. |
| 113 | 111 |
| 114 static const int kFromSp = 1; | 112 static const int kFromSp = 1; |
| 115 static const int kFromFp = 0; | 113 static const int kFromFp = 0; |
| 116 }; | 114 }; |
| 117 } | 115 } |
| 118 } | 116 } |
| 119 } // namespace v8::internal::compiler | 117 } // namespace v8::internal::compiler |
| 120 | 118 |
| 121 #endif // V8_COMPILER_FRAME_H_ | 119 #endif // V8_COMPILER_FRAME_H_ |
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