| /* |
| * 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. |
| */ |
| |
| #include <stdint.h> |
| |
| #include "builder.h" |
| #include "code_generator.h" |
| #include "compilers.h" |
| #include "driver/compiler_driver.h" |
| #include "driver/dex_compilation_unit.h" |
| #include "nodes.h" |
| #include "utils/arena_allocator.h" |
| |
| namespace art { |
| |
| /** |
| * Used by the code generator, to allocate the code in a vector. |
| */ |
| class CodeVectorAllocator FINAL : public CodeAllocator { |
| public: |
| CodeVectorAllocator() { } |
| |
| virtual uint8_t* Allocate(size_t size) { |
| size_ = size; |
| memory_.resize(size); |
| return &memory_[0]; |
| } |
| |
| size_t GetSize() const { return size_; } |
| const std::vector<uint8_t>& GetMemory() const { return memory_; } |
| |
| private: |
| std::vector<uint8_t> memory_; |
| size_t size_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CodeVectorAllocator); |
| }; |
| |
| |
| CompiledMethod* OptimizingCompiler::TryCompile(CompilerDriver& driver, |
| const DexFile::CodeItem* code_item, |
| uint32_t access_flags, |
| InvokeType invoke_type, |
| uint16_t class_def_idx, |
| uint32_t method_idx, |
| jobject class_loader, |
| const DexFile& dex_file) const { |
| DexCompilationUnit dex_compilation_unit( |
| nullptr, class_loader, art::Runtime::Current()->GetClassLinker(), dex_file, code_item, |
| class_def_idx, method_idx, access_flags, driver.GetVerifiedMethod(&dex_file, method_idx)); |
| |
| // For testing purposes, we put a special marker on method names that should be compiled |
| // with this compiler. This makes sure we're not regressing. |
| bool shouldCompile = dex_compilation_unit.GetSymbol().find("00024opt_00024") != std::string::npos; |
| |
| ArenaPool pool; |
| ArenaAllocator arena(&pool); |
| HGraphBuilder builder(&arena, &dex_compilation_unit, &dex_file); |
| HGraph* graph = builder.BuildGraph(*code_item); |
| if (graph == nullptr) { |
| if (shouldCompile) { |
| LOG(FATAL) << "Could not build graph in optimizing compiler"; |
| } |
| return nullptr; |
| } |
| |
| InstructionSet instruction_set = driver.GetInstructionSet(); |
| // The optimizing compiler currently does not have a Thumb2 assembler. |
| if (instruction_set == kThumb2) { |
| instruction_set = kArm; |
| } |
| CodeGenerator* codegen = CodeGenerator::Create(&arena, graph, instruction_set); |
| if (codegen == nullptr) { |
| if (shouldCompile) { |
| LOG(FATAL) << "Could not find code generator for optimizing compiler"; |
| } |
| return nullptr; |
| } |
| |
| CodeVectorAllocator allocator; |
| codegen->Compile(&allocator); |
| |
| std::vector<uint8_t> mapping_table; |
| codegen->BuildMappingTable(&mapping_table); |
| std::vector<uint8_t> vmap_table; |
| codegen->BuildVMapTable(&vmap_table); |
| std::vector<uint8_t> gc_map; |
| codegen->BuildNativeGCMap(&gc_map, dex_compilation_unit); |
| |
| return new CompiledMethod(driver, |
| instruction_set, |
| allocator.GetMemory(), |
| codegen->GetFrameSize(), |
| codegen->GetCoreSpillMask(), |
| 0, /* FPR spill mask, unused */ |
| mapping_table, |
| vmap_table, |
| gc_map, |
| nullptr, |
| nullptr); |
| } |
| |
| } // namespace art |