From 75be28332b278cff9039b54bfb228ac72f539ccc Mon Sep 17 00:00:00 2001 From: Roland Levillain Date: Fri, 17 Oct 2014 17:02:00 +0100 Subject: Revert "Revert "Introduce a class to implement optimization passes."" This reverts commit 1ddbf6d4b37979a9f11a203c12befd5ae8b65df4. Change-Id: I110a14668d1564ee0604dc958b91394b40da89fc --- compiler/optimizing/constant_folding.h | 48 ++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 compiler/optimizing/constant_folding.h (limited to 'compiler/optimizing/constant_folding.h') diff --git a/compiler/optimizing/constant_folding.h b/compiler/optimizing/constant_folding.h new file mode 100644 index 0000000000..d2acfa6973 --- /dev/null +++ b/compiler/optimizing/constant_folding.h @@ -0,0 +1,48 @@ +/* + * 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_CONSTANT_FOLDING_H_ +#define ART_COMPILER_OPTIMIZING_CONSTANT_FOLDING_H_ + +#include "nodes.h" +#include "optimization.h" + +namespace art { + +/** + * Optimization pass performing a simple constant-expression + * evaluation on the SSA form. + * + * This class is named art::HConstantFolding to avoid name + * clashes with the art::ConstantPropagation class defined in + * compiler/dex/post_opt_passes.h. + */ +class HConstantFolding : public HOptimization { + public: + HConstantFolding(HGraph* graph, const HGraphVisualizer& visualizer) + : HOptimization(graph, true, kConstantFoldingPassName, visualizer) {} + + virtual void Run() OVERRIDE; + + static constexpr const char* kConstantFoldingPassName = "constant_folding"; + + private: + DISALLOW_COPY_AND_ASSIGN(HConstantFolding); +}; + +} // namespace art + +#endif // ART_COMPILER_OPTIMIZING_CONSTANT_FOLDING_H_ -- cgit v1.2.3-59-g8ed1b