| /* |
| * Copyright (C) 2011 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.h" |
| #include "compiler_internals.h" |
| #include "driver/compiler_driver.h" |
| #include "driver/compiler_options.h" |
| #include "dataflow_iterator-inl.h" |
| #include "leb128.h" |
| #include "mirror/object.h" |
| #include "pass_driver.h" |
| #include "runtime.h" |
| #include "base/logging.h" |
| #include "base/timing_logger.h" |
| #include "driver/compiler_options.h" |
| #include "dex/quick/dex_file_to_method_inliner_map.h" |
| |
| namespace art { |
| |
| extern "C" void ArtInitQuickCompilerContext(art::CompilerDriver& driver) { |
| CHECK(driver.GetCompilerContext() == NULL); |
| } |
| |
| extern "C" void ArtUnInitQuickCompilerContext(art::CompilerDriver& driver) { |
| CHECK(driver.GetCompilerContext() == NULL); |
| } |
| |
| /* Default optimizer/debug setting for the compiler. */ |
| static uint32_t kCompilerOptimizerDisableFlags = 0 | // Disable specific optimizations |
| (1 << kLoadStoreElimination) | |
| // (1 << kLoadHoisting) | |
| // (1 << kSuppressLoads) | |
| // (1 << kNullCheckElimination) | |
| // (1 << kClassInitCheckElimination) | |
| // (1 << kPromoteRegs) | |
| // (1 << kTrackLiveTemps) | |
| // (1 << kSafeOptimizations) | |
| // (1 << kBBOpt) | |
| // (1 << kMatch) | |
| // (1 << kPromoteCompilerTemps) | |
| // (1 << kSuppressExceptionEdges) | |
| // (1 << kSuppressMethodInlining) | |
| 0; |
| |
| static uint32_t kCompilerDebugFlags = 0 | // Enable debug/testing modes |
| // (1 << kDebugDisplayMissingTargets) | |
| // (1 << kDebugVerbose) | |
| // (1 << kDebugDumpCFG) | |
| // (1 << kDebugSlowFieldPath) | |
| // (1 << kDebugSlowInvokePath) | |
| // (1 << kDebugSlowStringPath) | |
| // (1 << kDebugSlowestFieldPath) | |
| // (1 << kDebugSlowestStringPath) | |
| // (1 << kDebugExerciseResolveMethod) | |
| // (1 << kDebugVerifyDataflow) | |
| // (1 << kDebugShowMemoryUsage) | |
| // (1 << kDebugShowNops) | |
| // (1 << kDebugCountOpcodes) | |
| // (1 << kDebugDumpCheckStats) | |
| // (1 << kDebugDumpBitcodeFile) | |
| // (1 << kDebugVerifyBitcode) | |
| // (1 << kDebugShowSummaryMemoryUsage) | |
| // (1 << kDebugShowFilterStats) | |
| // (1 << kDebugTimings) | |
| 0; |
| |
| CompilationUnit::CompilationUnit(ArenaPool* pool) |
| : compiler_driver(NULL), |
| class_linker(NULL), |
| dex_file(NULL), |
| class_loader(NULL), |
| class_def_idx(0), |
| method_idx(0), |
| code_item(NULL), |
| access_flags(0), |
| invoke_type(kDirect), |
| shorty(NULL), |
| disable_opt(0), |
| enable_debug(0), |
| verbose(false), |
| compiler(NULL), |
| instruction_set(kNone), |
| num_dalvik_registers(0), |
| insns(NULL), |
| num_ins(0), |
| num_outs(0), |
| num_regs(0), |
| compiler_flip_match(false), |
| arena(pool), |
| arena_stack(pool), |
| mir_graph(NULL), |
| cg(NULL), |
| timings("QuickCompiler", true, false) { |
| } |
| |
| CompilationUnit::~CompilationUnit() { |
| } |
| |
| void CompilationUnit::StartTimingSplit(const char* label) { |
| if (compiler_driver->GetDumpPasses()) { |
| timings.StartSplit(label); |
| } |
| } |
| |
| void CompilationUnit::NewTimingSplit(const char* label) { |
| if (compiler_driver->GetDumpPasses()) { |
| timings.NewSplit(label); |
| } |
| } |
| |
| void CompilationUnit::EndTiming() { |
| if (compiler_driver->GetDumpPasses()) { |
| timings.EndSplit(); |
| if (enable_debug & (1 << kDebugTimings)) { |
| LOG(INFO) << "TIMINGS " << PrettyMethod(method_idx, *dex_file); |
| LOG(INFO) << Dumpable<TimingLogger>(timings); |
| } |
| } |
| } |
| |
| static CompiledMethod* CompileMethod(CompilerDriver& driver, |
| Compiler* 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, |
| void* llvm_compilation_unit) { |
| VLOG(compiler) << "Compiling " << PrettyMethod(method_idx, dex_file) << "..."; |
| if (code_item->insns_size_in_code_units_ >= 0x10000) { |
| LOG(INFO) << "Method size exceeds compiler limits: " << code_item->insns_size_in_code_units_ |
| << " in " << PrettyMethod(method_idx, dex_file); |
| return NULL; |
| } |
| |
| const CompilerOptions& compiler_options = driver.GetCompilerOptions(); |
| CompilerOptions::CompilerFilter compiler_filter = compiler_options.GetCompilerFilter(); |
| if (compiler_filter == CompilerOptions::kInterpretOnly) { |
| return nullptr; |
| } |
| |
| ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); |
| CompilationUnit cu(driver.GetArenaPool()); |
| |
| cu.compiler_driver = &driver; |
| cu.class_linker = class_linker; |
| cu.instruction_set = driver.GetInstructionSet(); |
| cu.target64 = (cu.instruction_set == kX86_64) || (cu.instruction_set == kArm64); |
| cu.compiler = compiler; |
| // TODO: x86_64 & arm64 are not yet implemented. |
| DCHECK((cu.instruction_set == kThumb2) || |
| (cu.instruction_set == kX86) || |
| (cu.instruction_set == kMips)); |
| |
| |
| /* Adjust this value accordingly once inlining is performed */ |
| cu.num_dalvik_registers = code_item->registers_size_; |
| // TODO: set this from command line |
| cu.compiler_flip_match = false; |
| bool use_match = !cu.compiler_method_match.empty(); |
| bool match = use_match && (cu.compiler_flip_match ^ |
| (PrettyMethod(method_idx, dex_file).find(cu.compiler_method_match) != |
| std::string::npos)); |
| if (!use_match || match) { |
| cu.disable_opt = kCompilerOptimizerDisableFlags; |
| cu.enable_debug = kCompilerDebugFlags; |
| cu.verbose = VLOG_IS_ON(compiler) || |
| (cu.enable_debug & (1 << kDebugVerbose)); |
| } |
| |
| /* |
| * TODO: rework handling of optimization and debug flags. Should we split out |
| * MIR and backend flags? Need command-line setting as well. |
| */ |
| |
| compiler->InitCompilationUnit(cu); |
| |
| if (cu.instruction_set == kMips) { |
| // Disable some optimizations for mips for now |
| cu.disable_opt |= ( |
| (1 << kLoadStoreElimination) | |
| (1 << kLoadHoisting) | |
| (1 << kSuppressLoads) | |
| (1 << kNullCheckElimination) | |
| (1 << kPromoteRegs) | |
| (1 << kTrackLiveTemps) | |
| (1 << kSafeOptimizations) | |
| (1 << kBBOpt) | |
| (1 << kMatch) | |
| (1 << kPromoteCompilerTemps)); |
| } |
| |
| cu.StartTimingSplit("BuildMIRGraph"); |
| cu.mir_graph.reset(new MIRGraph(&cu, &cu.arena)); |
| |
| /* |
| * After creation of the MIR graph, also create the code generator. |
| * The reason we do this is that optimizations on the MIR graph may need to get information |
| * that is only available if a CG exists. |
| */ |
| cu.cg.reset(compiler->GetCodeGenerator(&cu, llvm_compilation_unit)); |
| |
| /* Gathering opcode stats? */ |
| if (kCompilerDebugFlags & (1 << kDebugCountOpcodes)) { |
| cu.mir_graph->EnableOpcodeCounting(); |
| } |
| |
| // Check early if we should skip this compilation if using the profiled filter. |
| if (cu.compiler_driver->ProfilePresent()) { |
| std::string methodname = PrettyMethod(method_idx, dex_file); |
| if (cu.mir_graph->SkipCompilation(methodname)) { |
| return NULL; |
| } |
| } |
| |
| /* Build the raw MIR graph */ |
| cu.mir_graph->InlineMethod(code_item, access_flags, invoke_type, class_def_idx, method_idx, |
| class_loader, dex_file); |
| |
| cu.NewTimingSplit("MIROpt:CheckFilters"); |
| if (compiler_filter != CompilerOptions::kInterpretOnly) { |
| if (cu.mir_graph->SkipCompilation()) { |
| return NULL; |
| } |
| } |
| |
| /* Create the pass driver and launch it */ |
| PassDriver pass_driver(&cu); |
| pass_driver.Launch(); |
| |
| if (cu.enable_debug & (1 << kDebugDumpCheckStats)) { |
| cu.mir_graph->DumpCheckStats(); |
| } |
| |
| if (kCompilerDebugFlags & (1 << kDebugCountOpcodes)) { |
| cu.mir_graph->ShowOpcodeStats(); |
| } |
| |
| /* Reassociate sreg names with original Dalvik vreg names. */ |
| cu.mir_graph->RemapRegLocations(); |
| |
| /* Free Arenas from the cu.arena_stack for reuse by the cu.arena in the codegen. */ |
| if (cu.enable_debug & (1 << kDebugShowMemoryUsage)) { |
| if (cu.arena_stack.PeakBytesAllocated() > 256 * 1024) { |
| MemStats stack_stats(cu.arena_stack.GetPeakStats()); |
| LOG(INFO) << PrettyMethod(method_idx, dex_file) << " " << Dumpable<MemStats>(stack_stats); |
| } |
| } |
| cu.arena_stack.Reset(); |
| |
| CompiledMethod* result = NULL; |
| |
| cu.cg->Materialize(); |
| |
| cu.NewTimingSplit("Dedupe"); /* deduping takes up the vast majority of time in GetCompiledMethod(). */ |
| result = cu.cg->GetCompiledMethod(); |
| cu.NewTimingSplit("Cleanup"); |
| |
| if (result) { |
| VLOG(compiler) << "Compiled " << PrettyMethod(method_idx, dex_file); |
| } else { |
| VLOG(compiler) << "Deferred " << PrettyMethod(method_idx, dex_file); |
| } |
| |
| if (cu.enable_debug & (1 << kDebugShowMemoryUsage)) { |
| if (cu.arena.BytesAllocated() > (1 * 1024 *1024)) { |
| MemStats mem_stats(cu.arena.GetMemStats()); |
| LOG(INFO) << PrettyMethod(method_idx, dex_file) << " " << Dumpable<MemStats>(mem_stats); |
| } |
| } |
| |
| if (cu.enable_debug & (1 << kDebugShowSummaryMemoryUsage)) { |
| LOG(INFO) << "MEMINFO " << cu.arena.BytesAllocated() << " " << cu.mir_graph->GetNumBlocks() |
| << " " << PrettyMethod(method_idx, dex_file); |
| } |
| |
| cu.EndTiming(); |
| driver.GetTimingsLogger()->AddLogger(cu.timings); |
| return result; |
| } |
| |
| CompiledMethod* CompileOneMethod(CompilerDriver& driver, |
| Compiler* 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, |
| void* compilation_unit) { |
| return CompileMethod(driver, compiler, code_item, access_flags, invoke_type, class_def_idx, |
| method_idx, class_loader, dex_file, compilation_unit); |
| } |
| |
| } // namespace art |
| |
| extern "C" art::CompiledMethod* |
| ArtQuickCompileMethod(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) { |
| // TODO: check method fingerprint here to determine appropriate backend type. Until then, use build default |
| art::Compiler* compiler = driver.GetCompiler(); |
| return art::CompileOneMethod(driver, compiler, code_item, access_flags, invoke_type, |
| class_def_idx, method_idx, class_loader, dex_file, |
| NULL /* use thread llvm_info */); |
| } |