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51 lines
1.5 KiB
51 lines
1.5 KiB
4 months ago
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/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_COMPILER_OPTIMIZING_CODE_SINKING_H_
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#define ART_COMPILER_OPTIMIZING_CODE_SINKING_H_
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#include "nodes.h"
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#include "optimization.h"
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namespace art {
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/**
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* Optimization pass to move instructions into uncommon branches,
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* when it is safe to do so.
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*/
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class CodeSinking : public HOptimization {
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public:
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CodeSinking(HGraph* graph,
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OptimizingCompilerStats* stats,
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const char* name = kCodeSinkingPassName)
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: HOptimization(graph, name, stats) {}
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bool Run() override;
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static constexpr const char* kCodeSinkingPassName = "code_sinking";
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private:
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// Try to move code only used by `end_block` and all its post-dominated / dominated
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// blocks, to these blocks.
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void SinkCodeToUncommonBranch(HBasicBlock* end_block);
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DISALLOW_COPY_AND_ASSIGN(CodeSinking);
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};
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} // namespace art
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#endif // ART_COMPILER_OPTIMIZING_CODE_SINKING_H_
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