OLD | NEW |
| (Empty) |
1 // Copyright 2013 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef V8_HYDROGEN_BCE_H_ | |
6 #define V8_HYDROGEN_BCE_H_ | |
7 | |
8 #include "src/hydrogen.h" | |
9 | |
10 namespace v8 { | |
11 namespace internal { | |
12 | |
13 | |
14 class BoundsCheckBbData; | |
15 class BoundsCheckKey; | |
16 class BoundsCheckTable : private ZoneHashMap { | |
17 public: | |
18 explicit BoundsCheckTable(Zone* zone); | |
19 | |
20 INLINE(BoundsCheckBbData** LookupOrInsert(BoundsCheckKey* key, Zone* zone)); | |
21 INLINE(void Insert(BoundsCheckKey* key, BoundsCheckBbData* data, Zone* zone)); | |
22 INLINE(void Delete(BoundsCheckKey* key)); | |
23 | |
24 private: | |
25 DISALLOW_COPY_AND_ASSIGN(BoundsCheckTable); | |
26 }; | |
27 | |
28 | |
29 class HBoundsCheckEliminationPhase : public HPhase { | |
30 public: | |
31 explicit HBoundsCheckEliminationPhase(HGraph* graph) | |
32 : HPhase("H_Bounds checks elimination", graph), table_(zone()) { } | |
33 | |
34 void Run() { | |
35 EliminateRedundantBoundsChecks(graph()->entry_block()); | |
36 } | |
37 | |
38 private: | |
39 void EliminateRedundantBoundsChecks(HBasicBlock* bb); | |
40 BoundsCheckBbData* PreProcessBlock(HBasicBlock* bb); | |
41 void PostProcessBlock(HBasicBlock* bb, BoundsCheckBbData* data); | |
42 | |
43 BoundsCheckTable table_; | |
44 | |
45 DISALLOW_COPY_AND_ASSIGN(HBoundsCheckEliminationPhase); | |
46 }; | |
47 | |
48 | |
49 } // namespace internal | |
50 } // namespace v8 | |
51 | |
52 #endif // V8_HYDROGEN_BCE_H_ | |
OLD | NEW |