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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_HYDROGEN_CHECK_ELIMINATION_H_ | 28 #ifndef V8_HYDROGEN_CHECK_ELIMINATION_H_ |
29 #define V8_HYDROGEN_CHECK_ELIMINATION_H_ | 29 #define V8_HYDROGEN_CHECK_ELIMINATION_H_ |
30 | 30 |
31 #include "hydrogen.h" | 31 #include "hydrogen.h" |
| 32 #include "hydrogen-alias-analysis.h" |
32 | 33 |
33 namespace v8 { | 34 namespace v8 { |
34 namespace internal { | 35 namespace internal { |
35 | 36 |
36 | 37 |
37 // Remove CheckMaps instructions through flow- and branch-sensitive analysis. | 38 // Remove CheckMaps instructions through flow- and branch-sensitive analysis. |
38 class HCheckEliminationPhase : public HPhase { | 39 class HCheckEliminationPhase : public HPhase { |
39 public: | 40 public: |
40 explicit HCheckEliminationPhase(HGraph* graph) | 41 explicit HCheckEliminationPhase(HGraph* graph) |
41 : HPhase("H_Check Elimination", graph) { } | 42 : HPhase("H_Check Elimination", graph), |
| 43 aliasing_(), |
| 44 redundant_(0), |
| 45 removed_(0), |
| 46 narrowed_(0), |
| 47 loads_(0), |
| 48 empty_(0), |
| 49 compares_true_(0), |
| 50 compares_false_(0), |
| 51 transitions_(0) { } |
42 | 52 |
43 void Run(); | 53 void Run(); |
44 | 54 |
| 55 friend class HCheckTable; |
| 56 |
45 private: | 57 private: |
46 void EliminateLocalChecks(HBasicBlock* block); | 58 void PrintStats(); |
| 59 |
| 60 HAliasAnalyzer* aliasing_; |
| 61 int redundant_; |
| 62 int removed_; |
| 63 int narrowed_; |
| 64 int loads_; |
| 65 int empty_; |
| 66 int compares_true_; |
| 67 int compares_false_; |
| 68 int transitions_; |
47 }; | 69 }; |
48 | 70 |
49 | 71 |
50 } } // namespace v8::internal | 72 } } // namespace v8::internal |
51 | 73 |
52 #endif // V8_HYDROGEN_CHECK_ELIMINATION_H_ | 74 #endif // V8_HYDROGEN_CHECK_ELIMINATION_H_ |
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