From 68a5fefa90f03fdf5a238ac85c9439c6b03eae96 Mon Sep 17 00:00:00 2001 From: Nicolas Geoffray Date: Tue, 18 Feb 2014 16:43:35 +0000 Subject: Initial check-in of an optimizing compiler. The classes and the names are very much inspired by V8/Dart. It currently only supports the RETURN_VOID dex instruction, and there is a pretty printer to check if the building of the graph is correct. Change-Id: Id5ef1b317ab997010d4e3888e456c26bef1ab9c0 --- compiler/optimizing/builder.h | 57 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 compiler/optimizing/builder.h (limited to 'compiler/optimizing/builder.h') diff --git a/compiler/optimizing/builder.h b/compiler/optimizing/builder.h new file mode 100644 index 0000000000..3e94fba228 --- /dev/null +++ b/compiler/optimizing/builder.h @@ -0,0 +1,57 @@ +/* + * 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_BUILDER_H_ +#define ART_COMPILER_OPTIMIZING_BUILDER_H_ + +#include "utils/allocation.h" + +namespace art { + +class ArenaAllocator; +class Instruction; +class HBasicBlock; +class HGraph; + +class HGraphBuilder : public ValueObject { + public: + explicit HGraphBuilder(ArenaAllocator* arena) + : arena_(arena), + entry_block_(nullptr), + exit_block_(nullptr), + current_block_(nullptr), + graph_(nullptr) { } + + HGraph* BuildGraph(const uint16_t* start, const uint16_t* end); + + private: + // Analyzes the dex instruction and adds HInstruction to the graph + // to execute that instruction. Returns whether the instruction can + // be handled. + bool AnalyzeDexInstruction(const Instruction& instruction); + + ArenaAllocator* const arena_; + HBasicBlock* entry_block_; + HBasicBlock* exit_block_; + HBasicBlock* current_block_; + HGraph* graph_; + + DISALLOW_COPY_AND_ASSIGN(HGraphBuilder); +}; + +} // namespace art + +#endif // ART_COMPILER_OPTIMIZING_BUILDER_H_ -- cgit v1.2.3-59-g8ed1b