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Side by Side Diff: dart/runtime/vm/locations.h

Issue 59073003: Version 0.8.10.4 (Closed) Base URL: http://dart.googlecode.com/svn/trunk/
Patch Set: Created 7 years, 1 month ago
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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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