optimizing_compiler.cc revision e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7
1b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray/* 2b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * Copyright (C) 2014 The Android Open Source Project 3b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * 4b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * Licensed under the Apache License, Version 2.0 (the "License"); 5b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * you may not use this file except in compliance with the License. 6b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * You may obtain a copy of the License at 7b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * 8b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * http://www.apache.org/licenses/LICENSE-2.0 9b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * 10b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * Unless required by applicable law or agreed to in writing, software 11b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * distributed under the License is distributed on an "AS IS" BASIS, 12b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * See the License for the specific language governing permissions and 14b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray * limitations under the License. 15b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray */ 16b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray 1753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe#include "optimizing_compiler.h" 1853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 19f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray#include <fstream> 20787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include <stdint.h> 21787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 22787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include "builder.h" 23787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include "code_generator.h" 2453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe#include "compiler.h" 2575be28332b278cff9039b54bfb228ac72f539cccRoland Levillain#include "constant_folding.h" 2675be28332b278cff9039b54bfb228ac72f539cccRoland Levillain#include "dead_code_elimination.h" 27787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include "driver/compiler_driver.h" 2892cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray#include "driver/dex_compilation_unit.h" 29e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray#include "elf_writer_quick.h" 30f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray#include "graph_visualizer.h" 31d31cf3d55a0847c018c4eaa2b349b8eea509de64Nicolas Geoffray#include "gvn.h" 323c04974a90b0e03f4b509010bff49f0b2a3da57fNicolas Geoffray#include "instruction_simplifier.h" 33e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray#include "jni/quick/jni_compiler.h" 34e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray#include "mirror/art_method-inl.h" 35787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include "nodes.h" 3626a25ef62a13f409f941aa39825a51b4d6f0f047Nicolas Geoffray#include "prepare_for_register_allocation.h" 37a7062e05e6048c7f817d784a5b94e3122e25b1ecNicolas Geoffray#include "register_allocator.h" 387dc206a53a42a658f52d5cb0b7e79b47da370c9bNicolas Geoffray#include "ssa_phi_elimination.h" 39804d09372cc3d80d537da1489da4a45e0e19aa5dNicolas Geoffray#include "ssa_liveness_analysis.h" 40787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray#include "utils/arena_allocator.h" 41b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray 42b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffraynamespace art { 43b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray 44787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray/** 45787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray * Used by the code generator, to allocate the code in a vector. 46787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray */ 47787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffrayclass CodeVectorAllocator FINAL : public CodeAllocator { 48787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray public: 4988157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray CodeVectorAllocator() {} 50787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 51787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray virtual uint8_t* Allocate(size_t size) { 52787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray size_ = size; 5392cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray memory_.resize(size); 54787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray return &memory_[0]; 55787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray } 56787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 57787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray size_t GetSize() const { return size_; } 5892cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray const std::vector<uint8_t>& GetMemory() const { return memory_; } 59787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 60787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray private: 61787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray std::vector<uint8_t> memory_; 62787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray size_t size_; 63787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 64787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray DISALLOW_COPY_AND_ASSIGN(CodeVectorAllocator); 65787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray}; 66787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 67f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray/** 68f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray * If set to true, generates a file suitable for the c1visualizer tool and IRHydra. 69f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray */ 70f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffraystatic bool kIsVisualizerEnabled = false; 71f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray 72f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray/** 73f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray * Filter to apply to the visualizer. Methods whose name contain that filter will 74f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray * be in the file. 75f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray */ 76f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffraystatic const char* kStringFilter = ""; 77f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray 7853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampeclass OptimizingCompiler FINAL : public Compiler { 7953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe public: 8053c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe explicit OptimizingCompiler(CompilerDriver* driver); 8188157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray ~OptimizingCompiler(); 8253c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 8353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe bool CanCompileMethod(uint32_t method_idx, const DexFile& dex_file, CompilationUnit* cu) const 8453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe OVERRIDE; 8553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 8653c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe CompiledMethod* Compile(const DexFile::CodeItem* code_item, 8753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uint32_t access_flags, 8853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe InvokeType invoke_type, 8953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uint16_t class_def_idx, 9053c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uint32_t method_idx, 9153c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe jobject class_loader, 9253c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const DexFile& dex_file) const OVERRIDE; 9353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 9453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe CompiledMethod* JniCompile(uint32_t access_flags, 9553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uint32_t method_idx, 9653c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const DexFile& dex_file) const OVERRIDE; 9753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 9853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const OVERRIDE 9953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 10053c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 10153c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe bool WriteElf(art::File* file, 10253c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe OatWriter* oat_writer, 10353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const std::vector<const art::DexFile*>& dex_files, 10453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const std::string& android_root, 10553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe bool is_host) const OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); 10653c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 107e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray Backend* GetCodeGenerator(CompilationUnit* cu ATTRIBUTE_UNUSED, 108e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray void* compilation_unit ATTRIBUTE_UNUSED) const OVERRIDE { 109e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray return nullptr; 110e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray } 11153c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 112e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray void InitCompilationUnit(CompilationUnit& cu ATTRIBUTE_UNUSED) const OVERRIDE {} 11353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 114e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray void Init() const OVERRIDE {} 11553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 116e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray void UnInit() const OVERRIDE {} 11753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 11853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe private: 11988157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray // Whether we should run any optimization or register allocation. If false, will 12088157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray // just run the code generation after the graph was built. 12188157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray const bool run_optimizations_; 12288157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray mutable AtomicInteger total_compiled_methods_; 12388157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray mutable AtomicInteger unoptimized_compiled_methods_; 12488157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray mutable AtomicInteger optimized_compiled_methods_; 12588157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray 12653c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe std::unique_ptr<std::ostream> visualizer_output_; 12753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 12853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe DISALLOW_COPY_AND_ASSIGN(OptimizingCompiler); 12953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe}; 13053c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 13188157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffraystatic const int kMaximumCompilationTimeBeforeWarning = 100; /* ms */ 13288157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray 13388157efc1e16707d4ae10775d4acb15121c50fe7Nicolas GeoffrayOptimizingCompiler::OptimizingCompiler(CompilerDriver* driver) 13488157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray : Compiler(driver, kMaximumCompilationTimeBeforeWarning), 13588157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray run_optimizations_( 13688157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray driver->GetCompilerOptions().GetCompilerFilter() != CompilerOptions::kTime), 13788157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray total_compiled_methods_(0), 13888157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray unoptimized_compiled_methods_(0), 139e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray optimized_compiled_methods_(0) { 140f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray if (kIsVisualizerEnabled) { 141f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray visualizer_output_.reset(new std::ofstream("art.cfg")); 142f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray } 143f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray} 144787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 14588157efc1e16707d4ae10775d4acb15121c50fe7Nicolas GeoffrayOptimizingCompiler::~OptimizingCompiler() { 146ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray if (total_compiled_methods_ == 0) { 147ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray LOG(INFO) << "Did not compile any method."; 148ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray } else { 149ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray size_t unoptimized_percent = (unoptimized_compiled_methods_ * 100 / total_compiled_methods_); 150ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray size_t optimized_percent = (optimized_compiled_methods_ * 100 / total_compiled_methods_); 151ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray LOG(INFO) << "Compiled " << total_compiled_methods_ << " methods: " 152ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray << unoptimized_percent << "% (" << unoptimized_compiled_methods_ << ") unoptimized, " 153ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray << optimized_percent << "% (" << optimized_compiled_methods_ << ") optimized."; 154ce71ae7daca2e9ae4eec42d7445013c37d96e385Nicolas Geoffray } 15588157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray} 15688157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray 157e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffraybool OptimizingCompiler::CanCompileMethod(uint32_t method_idx ATTRIBUTE_UNUSED, 158e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray const DexFile& dex_file ATTRIBUTE_UNUSED, 159e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray CompilationUnit* cu ATTRIBUTE_UNUSED) const { 160e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray return true; 16153c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe} 16253c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 16353c913bb71b218714823c8c87a1f92830c336f61Andreas GampeCompiledMethod* OptimizingCompiler::JniCompile(uint32_t access_flags, 16453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe uint32_t method_idx, 16553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const DexFile& dex_file) const { 166e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray return ArtQuickJniCompileMethod(GetCompilerDriver(), access_flags, method_idx, dex_file); 16753c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe} 16853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 16953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampeuintptr_t OptimizingCompiler::GetEntryPointOf(mirror::ArtMethod* method) const { 170e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray return reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); 17153c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe} 17253c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 17353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampebool OptimizingCompiler::WriteElf(art::File* file, OatWriter* oat_writer, 17453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const std::vector<const art::DexFile*>& dex_files, 17553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe const std::string& android_root, bool is_host) const { 176e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray return art::ElfWriterQuick32::Create(file, oat_writer, dex_files, android_root, is_host, 177e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray *GetCompilerDriver()); 17853c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe} 17953c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 1801ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffraystatic bool IsInstructionSetSupported(InstructionSet instruction_set) { 1811ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray return instruction_set == kArm64 1821ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray || (instruction_set == kThumb2 && !kArm32QuickCodeUseSoftFloat) 1831ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray || instruction_set == kX86 1841ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray || instruction_set == kX86_64; 1851ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray} 1861ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray 187de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffraystatic bool CanOptimize(const DexFile::CodeItem& code_item) { 188de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray // TODO: We currently cannot optimize methods with try/catch. 189de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray return code_item.tries_size_ == 0; 190de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray} 191de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray 192e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas GeoffrayCompiledMethod* OptimizingCompiler::Compile(const DexFile::CodeItem* code_item, 193e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray uint32_t access_flags, 194e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray InvokeType invoke_type, 195e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray uint16_t class_def_idx, 196e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray uint32_t method_idx, 197e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray jobject class_loader, 198e2dc6fa7aa319ee892d6ed407c986c5a3ec3dcd7Nicolas Geoffray const DexFile& dex_file) const { 1996a3c1fcb4ba42ad4d5d142c17a3712a6ddd3866fIan Rogers UNUSED(invoke_type); 20088157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray total_compiled_methods_++; 2018fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray InstructionSet instruction_set = GetCompilerDriver()->GetInstructionSet(); 2028d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray // Always use the thumb2 assembler: some runtime functionality (like implicit stack 2038d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray // overflow checks) assume thumb2. 2048d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray if (instruction_set == kArm) { 2058d486731559ba0c5e12c27b4a507181333702b7eNicolas Geoffray instruction_set = kThumb2; 2068fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray } 2078fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray 2088fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray // Do not attempt to compile on architectures we do not support. 2091ba0f596e9e4ddd778ab431237d11baa85594ebaNicolas Geoffray if (!IsInstructionSetSupported(instruction_set)) { 2108fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray return nullptr; 2118fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray } 2128fb5ce3a7e1dec587642f900be86729c10224174Nicolas Geoffray 213b5f62b3dc5ac2731ba8ad53cdf3d9bdb14fbf86bNicolas Geoffray if (Compiler::IsPathologicalCase(*code_item, method_idx, dex_file)) { 214b5f62b3dc5ac2731ba8ad53cdf3d9bdb14fbf86bNicolas Geoffray return nullptr; 215b5f62b3dc5ac2731ba8ad53cdf3d9bdb14fbf86bNicolas Geoffray } 216b5f62b3dc5ac2731ba8ad53cdf3d9bdb14fbf86bNicolas Geoffray 21792cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray DexCompilationUnit dex_compilation_unit( 21892cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray nullptr, class_loader, art::Runtime::Current()->GetClassLinker(), dex_file, code_item, 21972d32629303f8f39362a4099481f48646aed042fIan Rogers class_def_idx, method_idx, access_flags, 22072d32629303f8f39362a4099481f48646aed042fIan Rogers GetCompilerDriver()->GetVerifiedMethod(&dex_file, method_idx)); 22192cf83e001357329cbf41fa15a6e053fab6f4933Nicolas Geoffray 2228ccc3f5d06fd217cdaabd37e743adab2031d3720Nicolas Geoffray // For testing purposes, we put a special marker on method names that should be compiled 2238ccc3f5d06fd217cdaabd37e743adab2031d3720Nicolas Geoffray // with this compiler. This makes sure we're not regressing. 2248ccc3f5d06fd217cdaabd37e743adab2031d3720Nicolas Geoffray bool shouldCompile = dex_compilation_unit.GetSymbol().find("00024opt_00024") != std::string::npos; 22586dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray bool shouldOptimize = 22686dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray dex_compilation_unit.GetSymbol().find("00024reg_00024") != std::string::npos; 2278ccc3f5d06fd217cdaabd37e743adab2031d3720Nicolas Geoffray 228787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray ArenaPool pool; 229787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray ArenaAllocator arena(&pool); 230e50383288a75244255d3ecedcc79ffe9caf774cbNicolas Geoffray HGraphBuilder builder(&arena, &dex_compilation_unit, &dex_file, GetCompilerDriver()); 231f635e63318447ca04731b265a86a573c9ed1737cNicolas Geoffray 232787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray HGraph* graph = builder.BuildGraph(*code_item); 233787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray if (graph == nullptr) { 2345667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu CHECK(!shouldCompile) << "Could not build graph in optimizing compiler"; 235787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray return nullptr; 236787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray } 237787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 238787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray CodeGenerator* codegen = CodeGenerator::Create(&arena, graph, instruction_set); 239787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray if (codegen == nullptr) { 2405667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu CHECK(!shouldCompile) << "Could not find code generator for optimizing compiler"; 241787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray return nullptr; 242787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray } 243787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 244a7062e05e6048c7f817d784a5b94e3122e25b1ecNicolas Geoffray HGraphVisualizer visualizer( 245a7062e05e6048c7f817d784a5b94e3122e25b1ecNicolas Geoffray visualizer_output_.get(), graph, kStringFilter, *codegen, dex_compilation_unit); 246a7062e05e6048c7f817d784a5b94e3122e25b1ecNicolas Geoffray visualizer.DumpGraph("builder"); 247a7062e05e6048c7f817d784a5b94e3122e25b1ecNicolas Geoffray 248787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray CodeVectorAllocator allocator; 24986dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray 250de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray if (run_optimizations_ 251de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray && CanOptimize(*code_item) 252de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray && RegisterAllocator::CanAllocateRegistersFor(*graph, instruction_set)) { 25388157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray optimized_compiled_methods_++; 25486dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray graph->BuildDominatorTree(); 25586dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray graph->TransformToSSA(); 25686dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray visualizer.DumpGraph("ssa"); 25786dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray graph->FindNaturalLoops(); 2587dc206a53a42a658f52d5cb0b7e79b47da370c9bNicolas Geoffray 25975be28332b278cff9039b54bfb228ac72f539cccRoland Levillain HDeadCodeElimination(graph, visualizer).Execute(); 26075be28332b278cff9039b54bfb228ac72f539cccRoland Levillain HConstantFolding(graph, visualizer).Execute(); 26175be28332b278cff9039b54bfb228ac72f539cccRoland Levillain 2627dc206a53a42a658f52d5cb0b7e79b47da370c9bNicolas Geoffray SsaRedundantPhiElimination(graph).Run(); 2637dc206a53a42a658f52d5cb0b7e79b47da370c9bNicolas Geoffray SsaDeadPhiElimination(graph).Run(); 2643c04974a90b0e03f4b509010bff49f0b2a3da57fNicolas Geoffray InstructionSimplifier(graph).Run(); 265d31cf3d55a0847c018c4eaa2b349b8eea509de64Nicolas Geoffray GlobalValueNumberer(graph->GetArena(), graph).Run(); 266d31cf3d55a0847c018c4eaa2b349b8eea509de64Nicolas Geoffray visualizer.DumpGraph(kGVNPassName); 267af07bc121121d7bd7e8329c55dfe24782207b561Nicolas Geoffray InstructionSimplifier(graph).Run(); 26826a25ef62a13f409f941aa39825a51b4d6f0f047Nicolas Geoffray PrepareForRegisterAllocation(graph).Run(); 2697dc206a53a42a658f52d5cb0b7e79b47da370c9bNicolas Geoffray 27086dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray SsaLivenessAnalysis liveness(*graph, codegen); 27186dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray liveness.Analyze(); 27286dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray visualizer.DumpGraph(kLivenessPassName); 27386dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray 27486dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray RegisterAllocator register_allocator(graph->GetArena(), codegen, liveness); 27586dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray register_allocator.AllocateRegisters(); 27686dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray 27786dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray visualizer.DumpGraph(kRegisterAllocatorPassName); 27886dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray codegen->CompileOptimized(&allocator); 2793946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 2803946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray std::vector<uint8_t> mapping_table; 2813946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray SrcMap src_mapping_table; 2823946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->BuildMappingTable(&mapping_table, 2833946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray GetCompilerDriver()->GetCompilerOptions().GetIncludeDebugSymbols() ? 2843946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray &src_mapping_table : nullptr); 2853946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 2863946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray std::vector<uint8_t> stack_map; 2873946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->BuildStackMaps(&stack_map); 2883946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 2893946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray return new CompiledMethod(GetCompilerDriver(), 2903946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray instruction_set, 2913946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray allocator.GetMemory(), 2923946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->GetFrameSize(), 2933946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->GetCoreSpillMask(), 2943946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 0, /* FPR spill mask, unused */ 2953946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray mapping_table, 2963946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray stack_map); 29786dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray } else if (shouldOptimize && RegisterAllocator::Supports(instruction_set)) { 29886dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray LOG(FATAL) << "Could not allocate registers in optimizing compiler"; 2995667fdbb6e441dee7534ade18b628ed396daf593Zheng Xu UNREACHABLE(); 30086dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray } else { 30188157efc1e16707d4ae10775d4acb15121c50fe7Nicolas Geoffray unoptimized_compiled_methods_++; 30286dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray codegen->CompileBaseline(&allocator); 30386dbb9a12119273039ce272b41c809fa548b37b6Nicolas Geoffray 304de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray if (CanOptimize(*code_item)) { 305de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray // Run these phases to get some test coverage. 306de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray graph->BuildDominatorTree(); 307de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray graph->TransformToSSA(); 308de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray visualizer.DumpGraph("ssa"); 309de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray graph->FindNaturalLoops(); 310de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray SsaRedundantPhiElimination(graph).Run(); 311de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray SsaDeadPhiElimination(graph).Run(); 312de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray GlobalValueNumberer(graph->GetArena(), graph).Run(); 313de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray SsaLivenessAnalysis liveness(*graph, codegen); 314de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray liveness.Analyze(); 315de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray visualizer.DumpGraph(kLivenessPassName); 316de58ab2c03ff8112b07ab827c8fa38f670dfc656Nicolas Geoffray } 317787c3076635cf117eb646c5a89a9014b2072fb44Nicolas Geoffray 3183946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray std::vector<uint8_t> mapping_table; 3193946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray SrcMap src_mapping_table; 3203946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->BuildMappingTable(&mapping_table, 3213946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray GetCompilerDriver()->GetCompilerOptions().GetIncludeDebugSymbols() ? 3223946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray &src_mapping_table : nullptr); 3233946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray std::vector<uint8_t> vmap_table; 3243946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->BuildVMapTable(&vmap_table); 3253946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray std::vector<uint8_t> gc_map; 3263946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->BuildNativeGCMap(&gc_map, dex_compilation_unit); 3273946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 3283946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray return new CompiledMethod(GetCompilerDriver(), 3293946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray instruction_set, 3303946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray allocator.GetMemory(), 3313946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->GetFrameSize(), 3323946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray codegen->GetCoreSpillMask(), 3333946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray 0, /* FPR spill mask, unused */ 3343946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray &src_mapping_table, 3353946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray mapping_table, 3363946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray vmap_table, 3373946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray gc_map, 3383946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray nullptr); 3393946844c34ad965515f677084b07d663d70ad1b8Nicolas Geoffray } 340b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray} 341b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray 34253c913bb71b218714823c8c87a1f92830c336f61Andreas GampeCompiler* CreateOptimizingCompiler(CompilerDriver* driver) { 34353c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe return new OptimizingCompiler(driver); 34453c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe} 34553c913bb71b218714823c8c87a1f92830c336f61Andreas Gampe 346b34f69ab43aaf7a6e6045c95f398baf566ef5023Nicolas Geoffray} // namespace art 347