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| 1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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_JS_INLINING_HEURISTIC_H_ | 5 #ifndef V8_COMPILER_JS_INLINING_HEURISTIC_H_ |
| 6 #define V8_COMPILER_JS_INLINING_HEURISTIC_H_ | 6 #define V8_COMPILER_JS_INLINING_HEURISTIC_H_ |
| 7 | 7 |
| 8 #include "src/compiler/js-inlining.h" | 8 #include "src/compiler/js-inlining.h" |
| 9 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
| 11 namespace internal { | 11 namespace internal { |
| 12 namespace compiler { | 12 namespace compiler { |
| 13 | 13 |
| 14 class JSInliningHeuristic final : public AdvancedReducer { | 14 class JSInliningHeuristic final : public AdvancedReducer { |
| 15 public: | 15 public: |
| 16 enum Mode { kGeneralInlining, kRestrictedInlining, kStressInlining }; | 16 enum Mode { kGeneralInlining, kRestrictedInlining, kStressInlining }; |
| 17 JSInliningHeuristic(Editor* editor, Mode mode, Zone* local_zone, | 17 JSInliningHeuristic(Editor* editor, Mode mode, Zone* local_zone, |
| 18 CompilationInfo* info, JSGraph* jsgraph) | 18 CompilationInfo* info, JSGraph* jsgraph) |
| 19 : AdvancedReducer(editor), | 19 : AdvancedReducer(editor), |
| 20 mode_(mode), | 20 mode_(mode), |
| 21 local_zone_(local_zone), | 21 local_zone_(local_zone), |
| 22 jsgraph_(jsgraph), | 22 jsgraph_(jsgraph), |
| 23 inliner_(editor, local_zone, info, jsgraph), | 23 inliner_(editor, local_zone, info, jsgraph), |
| 24 candidates_(local_zone) {} | 24 candidates_(local_zone), |
| 25 info_(info) {} |
| 25 | 26 |
| 26 Reduction Reduce(Node* node) final; | 27 Reduction Reduce(Node* node) final; |
| 27 | 28 |
| 28 // Processes the list of candidates gathered while the reducer was running, | 29 // Processes the list of candidates gathered while the reducer was running, |
| 29 // and inlines call sites that the heuristic determines to be important. | 30 // and inlines call sites that the heuristic determines to be important. |
| 30 void ProcessCandidates(); | 31 void ProcessCandidates(); |
| 31 | 32 |
| 32 private: | 33 private: |
| 33 struct Candidate { | 34 struct Candidate { |
| 34 Handle<JSFunction> function; // The call target being inlined. | 35 Handle<JSFunction> function; // The call target being inlined. |
| 35 Node* node; // The call site at which to inline. | 36 Node* node; // The call site at which to inline. |
| 36 int calls; // Number of times the call site was hit. | 37 int calls; // Number of times the call site was hit. |
| 37 }; | 38 }; |
| 38 | 39 |
| 39 static bool Compare(const Candidate& left, const Candidate& right); | 40 static bool Compare(const Candidate& left, const Candidate& right); |
| 40 void PrintCandidates(); | 41 void PrintCandidates(); |
| 41 | 42 |
| 42 Mode const mode_; | 43 Mode const mode_; |
| 43 Zone* local_zone_; | 44 Zone* local_zone_; |
| 44 JSGraph* jsgraph_; | 45 JSGraph* jsgraph_; |
| 45 JSInliner inliner_; | 46 JSInliner inliner_; |
| 46 ZoneVector<Candidate> candidates_; | 47 ZoneVector<Candidate> candidates_; |
| 48 CompilationInfo* info_; |
| 47 }; | 49 }; |
| 48 | 50 |
| 49 } // namespace compiler | 51 } // namespace compiler |
| 50 } // namespace internal | 52 } // namespace internal |
| 51 } // namespace v8 | 53 } // namespace v8 |
| 52 | 54 |
| 53 #endif // V8_COMPILER_JS_INLINING_HEURISTIC_H_ | 55 #endif // V8_COMPILER_JS_INLINING_HEURISTIC_H_ |
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