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Diffstat (limited to 'compiler/optimizing/dead_code_elimination.h')
| -rw-r--r-- | compiler/optimizing/dead_code_elimination.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/compiler/optimizing/dead_code_elimination.h b/compiler/optimizing/dead_code_elimination.h new file mode 100644 index 0000000000..48739be494 --- /dev/null +++ b/compiler/optimizing/dead_code_elimination.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ART_COMPILER_OPTIMIZING_DEAD_CODE_ELIMINATION_H_ +#define ART_COMPILER_OPTIMIZING_DEAD_CODE_ELIMINATION_H_ + +#include "nodes.h" + +namespace art { + +/** + * Optimization pass performing dead code elimination (removal of + * unused variables/instructions) on the SSA form. + */ +class DeadCodeElimination : public ValueObject { + public: + explicit DeadCodeElimination(HGraph* graph) + : graph_(graph) {} + + void Run(); + + private: + HGraph* const graph_; + + DISALLOW_COPY_AND_ASSIGN(DeadCodeElimination); +}; + +} // namespace art + +#endif // ART_COMPILER_OPTIMIZING_DEAD_CODE_ELIMINATION_H_ |