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Side by Side Diff: runtime/vm/flow_graph_optimizer.h

Issue 21013005: Optimize equuality operation for two Boolean arguments. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 7 years, 4 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, 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_FLOW_GRAPH_OPTIMIZER_H_ 5 #ifndef VM_FLOW_GRAPH_OPTIMIZER_H_
6 #define VM_FLOW_GRAPH_OPTIMIZER_H_ 6 #define VM_FLOW_GRAPH_OPTIMIZER_H_
7 7
8 #include "vm/intermediate_language.h" 8 #include "vm/intermediate_language.h"
9 #include "vm/flow_graph.h" 9 #include "vm/flow_graph.h"
10 10
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182 template <typename T> 182 template <typename T>
183 void HandleEqualityCompare(EqualityCompareInstr* comp, 183 void HandleEqualityCompare(EqualityCompareInstr* comp,
184 T current_instruction); 184 T current_instruction);
185 185
186 static bool CanStrictifyEqualityCompare(EqualityCompareInstr* call); 186 static bool CanStrictifyEqualityCompare(EqualityCompareInstr* call);
187 187
188 template <typename T> 188 template <typename T>
189 bool StrictifyEqualityCompare(EqualityCompareInstr* compare, 189 bool StrictifyEqualityCompare(EqualityCompareInstr* compare,
190 T current_instruction) const; 190 T current_instruction) const;
191 191
192 template <typename T>
193 bool StrictifyEqualityCompareWithICData(EqualityCompareInstr* compare,
194 const ICData& unary_ic_data,
195 T current_instruction);
196
192 void OptimizeLeftShiftBitAndSmiOp(Definition* bit_and_instr, 197 void OptimizeLeftShiftBitAndSmiOp(Definition* bit_and_instr,
193 Definition* left_instr, 198 Definition* left_instr,
194 Definition* right_instr); 199 Definition* right_instr);
195 200
196 void AddToGuardedFields(const Field& field); 201 void AddToGuardedFields(const Field& field);
197 202
198 FlowGraph* flow_graph_; 203 FlowGraph* flow_graph_;
199 GrowableArray<const Field*>* guarded_fields_; 204 GrowableArray<const Field*>* guarded_fields_;
200 205
201 DISALLOW_COPY_AND_ASSIGN(FlowGraphOptimizer); 206 DISALLOW_COPY_AND_ASSIGN(FlowGraphOptimizer);
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373 // Optimize spill stores inside try-blocks by identifying values that always 378 // Optimize spill stores inside try-blocks by identifying values that always
374 // contain a single known constant at catch block entry. 379 // contain a single known constant at catch block entry.
375 class TryCatchAnalyzer : public AllStatic { 380 class TryCatchAnalyzer : public AllStatic {
376 public: 381 public:
377 static void Optimize(FlowGraph* flow_graph); 382 static void Optimize(FlowGraph* flow_graph);
378 }; 383 };
379 384
380 } // namespace dart 385 } // namespace dart
381 386
382 #endif // VM_FLOW_GRAPH_OPTIMIZER_H_ 387 #endif // VM_FLOW_GRAPH_OPTIMIZER_H_
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