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Diffstat (limited to 'compiler/compiler_backend.cc')
-rw-r--r-- | compiler/compiler_backend.cc | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/compiler/compiler_backend.cc b/compiler/compiler_backend.cc new file mode 100644 index 0000000000..b8f21a9bf5 --- /dev/null +++ b/compiler/compiler_backend.cc @@ -0,0 +1,293 @@ +/* + * 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 "compiler_backend.h" +#include "elf_writer_quick.h" +#include "dex/quick/mir_to_lir.h" +#include "dex/mir_graph.h" +#include "driver/compiler_driver.h" +#include "mirror/art_method-inl.h" + +#ifdef ART_USE_PORTABLE_COMPILER +#include "dex/portable/mir_to_gbc.h" +#include "elf_writer_mclinker.h" +#endif + +namespace art { + +#ifdef ART_SEA_IR_MODE +extern "C" art::CompiledMethod* SeaIrCompileMethod(art::CompilerDriver& compiler, + const art::DexFile::CodeItem* code_item, + uint32_t access_flags, + art::InvokeType invoke_type, + uint16_t class_def_idx, + uint32_t method_idx, + jobject class_loader, + const art::DexFile& dex_file); +#endif + +extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver); +extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver); +extern "C" art::CompiledMethod* ArtQuickCompileMethod(art::CompilerDriver& compiler, + const art::DexFile::CodeItem* code_item, + uint32_t access_flags, + art::InvokeType invoke_type, + uint16_t class_def_idx, + uint32_t method_idx, + jobject class_loader, + const art::DexFile& dex_file); + +extern "C" art::CompiledMethod* ArtQuickJniCompileMethod(art::CompilerDriver& compiler, + uint32_t access_flags, uint32_t method_idx, + const art::DexFile& dex_file); + + +static CompiledMethod* TryCompileWithSeaIR(art::CompilerDriver& compiler, + const art::DexFile::CodeItem* code_item, + uint32_t access_flags, + art::InvokeType invoke_type, + uint16_t class_def_idx, + uint32_t method_idx, + jobject class_loader, + const art::DexFile& dex_file) { +#ifdef ART_SEA_IR_MODE + bool use_sea = Runtime::Current()->IsSeaIRMode(); + use_sea = use_sea && + (std::string::npos != PrettyMethod(method_idx, dex_file).find("fibonacci")); + if (use_sea) { + LOG(INFO) << "Using SEA IR to compile..." << std::endl; + return SeaIrCompileMethod(compiler, + code_item, + access_flags, + invoke_type, + class_def_idx, + method_idx, + class_loader, + dex_file); + } +#endif + return nullptr; +} + + +class QuickBackend : public CompilerBackend { + public: + QuickBackend() : CompilerBackend(100) {} + + void Init(CompilerDriver& driver) const { + ArtInitQuickCompilerContext(driver); + } + + void UnInit(CompilerDriver& driver) const { + ArtUnInitQuickCompilerContext(driver); + } + + CompiledMethod* Compile(CompilerDriver& compiler, + 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 { + CompiledMethod* method = TryCompileWithSeaIR(compiler, + code_item, + access_flags, + invoke_type, + class_def_idx, + method_idx, + class_loader, + dex_file); + if (method != nullptr) return method; + + return ArtQuickCompileMethod(compiler, + code_item, + access_flags, + invoke_type, + class_def_idx, + method_idx, + class_loader, + dex_file); + } + + CompiledMethod* JniCompile(CompilerDriver& driver, + uint32_t access_flags, + uint32_t method_idx, + const DexFile& dex_file) const { + return ArtQuickJniCompileMethod(driver, access_flags, method_idx, dex_file); + } + + uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const { + return reinterpret_cast<uintptr_t>(method->GetEntryPointFromQuickCompiledCode()); + } + + bool WriteElf(art::File* file, + OatWriter& oat_writer, + const std::vector<const art::DexFile*>& dex_files, + const std::string& android_root, + bool is_host, const CompilerDriver& driver) const + SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { + return art::ElfWriterQuick::Create(file, oat_writer, dex_files, android_root, is_host, driver); + } + + Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const { + Mir2Lir* mir_to_lir = nullptr; + switch (cu->instruction_set) { + case kThumb2: + mir_to_lir = ArmCodeGenerator(cu, cu->mir_graph.get(), &cu->arena); + break; + case kMips: + mir_to_lir = MipsCodeGenerator(cu, cu->mir_graph.get(), &cu->arena); + break; + case kX86: + mir_to_lir = X86CodeGenerator(cu, cu->mir_graph.get(), &cu->arena); + break; + default: + LOG(FATAL) << "Unexpected instruction set: " << cu->instruction_set; + } + + /* The number of compiler temporaries depends on backend so set it up now if possible */ + if (mir_to_lir) { + size_t max_temps = mir_to_lir->GetMaxPossibleCompilerTemps(); + bool set_max = cu->mir_graph->SetMaxAvailableNonSpecialCompilerTemps(max_temps); + CHECK(set_max); + } + return mir_to_lir;; + } + + void InitCompilationUnit(CompilationUnit& cu) const {} + + private: + DISALLOW_COPY_AND_ASSIGN(QuickBackend); +}; + +#ifdef ART_USE_PORTABLE_COMPILER + +extern "C" void ArtInitCompilerContext(art::CompilerDriver& driver); +extern "C" void ArtUnInitCompilerContext(art::CompilerDriver& driver); +extern "C" art::CompiledMethod* ArtCompileMethod(art::CompilerDriver& driver, + const art::DexFile::CodeItem* code_item, + uint32_t access_flags, + art::InvokeType invoke_type, + uint16_t class_def_idx, + uint32_t method_idx, + jobject class_loader, + const art::DexFile& dex_file); +extern "C" art::CompiledMethod* ArtLLVMJniCompileMethod(art::CompilerDriver& driver, + uint32_t access_flags, uint32_t method_idx, + const art::DexFile& dex_file); + + +class LLVMBackend : public CompilerBackend { + public: + LLVMBackend() : CompilerBackend(1000) {} + + void Init(CompilerDriver& driver) const { + ArtInitCompilerContext(driver); + } + + void UnInit(CompilerDriver& driver) const { + ArtUnInitCompilerContext(driver); + } + + CompiledMethod* Compile(CompilerDriver& compiler, + 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 { + CompiledMethod* method = TryCompileWithSeaIR(compiler, + code_item, + access_flags, + invoke_type, + class_def_idx, + method_idx, + class_loader, + dex_file); + if (method != nullptr) return method; + + return ArtCompileMethod(compiler, + code_item, + access_flags, + invoke_type, + class_def_idx, + method_idx, + class_loader, + dex_file); + } + + CompiledMethod* JniCompile(CompilerDriver& driver, + uint32_t access_flags, + uint32_t method_idx, + const DexFile& dex_file) const { + return ArtLLVMJniCompileMethod(driver, access_flags, method_idx, dex_file); + } + + uintptr_t GetEntryPointOf(mirror::ArtMethod* method) const { + return reinterpret_cast<uintptr_t>(method->GetEntryPointFromPortableCompiledCode()); + } + + bool WriteElf(art::File* file, + OatWriter& oat_writer, + const std::vector<const art::DexFile*>& dex_files, + const std::string& android_root, + bool is_host, const CompilerDriver& driver) const + SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { + return art::ElfWriterMclinker::Create( + file, oat_writer, dex_files, android_root, is_host, driver); + } + + Backend* GetCodeGenerator(CompilationUnit* cu, void* compilation_unit) const { + return PortableCodeGenerator( + cu, cu->mir_graph.get(), &cu->arena, + reinterpret_cast<art::llvm::LlvmCompilationUnit*>(compilation_unit)); + } + + void InitCompilationUnit(CompilationUnit& cu) const { + // Fused long branches not currently useful in bitcode. + cu.disable_opt |= + (1 << kBranchFusing) | + (1 << kSuppressExceptionEdges); + } + + bool isPortable() const { return true; } + + private: + DISALLOW_COPY_AND_ASSIGN(LLVMBackend); +}; +#endif + +CompilerBackend* CompilerBackend::Create(CompilerBackend::Kind kind) { + switch (kind) { + case kQuick: + return new QuickBackend(); + break; + case kPortable: +#ifdef ART_USE_PORTABLE_COMPILER + return new LLVMBackend(); +#else + LOG(FATAL) << "Portable compiler not compiled"; +#endif + break; + default: + LOG(FATAL) << "UNREACHABLE"; + } + return nullptr; +} + +} // namespace art |