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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef VM_LOCATIONS_H_ | 5 #ifndef VM_LOCATIONS_H_ |
| 6 #define VM_LOCATIONS_H_ | 6 #define VM_LOCATIONS_H_ |
| 7 | 7 |
| 8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
| 9 #include "vm/assembler.h" | 9 #include "vm/assembler.h" |
| 10 #include "vm/bitfield.h" | 10 #include "vm/bitfield.h" |
| 11 | 11 |
| 12 namespace dart { | 12 namespace dart { |
| 13 | 13 |
| 14 class BufferFormatter; | 14 class BufferFormatter; |
| 15 class Value; | 15 class Value; |
| 16 | 16 |
| 17 | 17 |
| 18 enum Representation { | 18 enum Representation { |
| 19 kNoRepresentation, | 19 kNoRepresentation, |
| 20 kTagged, | 20 kTagged, |
| 21 kUntagged, | 21 kUntagged, |
| 22 kUnboxedDouble, | 22 kUnboxedDouble, |
| 23 kUnboxedMint, | 23 kUnboxedMint, |
| 24 kUnboxedFloat32x4, | 24 kUnboxedFloat32x4, |
| 25 kUnboxedUint32x4, | 25 kUnboxedInt32x4, |
| 26 kNumRepresentations | 26 kNumRepresentations |
| 27 }; | 27 }; |
| 28 | 28 |
| 29 | 29 |
| 30 // Location objects are used to connect register allocator and code generator. | 30 // Location objects are used to connect register allocator and code generator. |
| 31 // Instruction templates used by code generator have a corresponding | 31 // Instruction templates used by code generator have a corresponding |
| 32 // LocationSummary object which specifies expected location for every input | 32 // LocationSummary object which specifies expected location for every input |
| 33 // and output. | 33 // and output. |
| 34 // Each location is encoded as a single word: for non-constant locations | 34 // Each location is encoded as a single word: for non-constant locations |
| 35 // low 3 bits denote location kind, rest is kind specific location payload | 35 // low 3 bits denote location kind, rest is kind specific location payload |
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| 477 BitmapBuilder* stack_bitmap_; | 477 BitmapBuilder* stack_bitmap_; |
| 478 | 478 |
| 479 const ContainsCall contains_call_; | 479 const ContainsCall contains_call_; |
| 480 RegisterSet live_registers_; | 480 RegisterSet live_registers_; |
| 481 }; | 481 }; |
| 482 | 482 |
| 483 | 483 |
| 484 } // namespace dart | 484 } // namespace dart |
| 485 | 485 |
| 486 #endif // VM_LOCATIONS_H_ | 486 #endif // VM_LOCATIONS_H_ |
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