1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_COMPILER_DRIVER_COMPILER_OPTIONS_H_ 18 #define ART_COMPILER_DRIVER_COMPILER_OPTIONS_H_ 19 20 #include <ostream> 21 #include <string> 22 #include <vector> 23 24 #include "base/macros.h" 25 #include "compiler_filter.h" 26 #include "globals.h" 27 #include "optimizing/register_allocator.h" 28 #include "utils.h" 29 30 namespace art { 31 32 namespace verifier { 33 class VerifierDepsTest; 34 } // namespace verifier 35 36 class DexFile; 37 38 class CompilerOptions FINAL { 39 public: 40 // Guide heuristics to determine whether to compile method if profile data not available. 41 static const size_t kDefaultHugeMethodThreshold = 10000; 42 static const size_t kDefaultLargeMethodThreshold = 600; 43 static const size_t kDefaultSmallMethodThreshold = 60; 44 static const size_t kDefaultTinyMethodThreshold = 20; 45 static const size_t kDefaultNumDexMethodsThreshold = 900; 46 static constexpr double kDefaultTopKProfileThreshold = 90.0; 47 static const bool kDefaultGenerateDebugInfo = false; 48 static const bool kDefaultGenerateMiniDebugInfo = false; 49 static const size_t kDefaultInlineMaxCodeUnits = 32; 50 static constexpr size_t kUnsetInlineMaxCodeUnits = -1; 51 52 CompilerOptions(); 53 ~CompilerOptions(); 54 55 CompilerFilter::Filter GetCompilerFilter() const { 56 return compiler_filter_; 57 } 58 59 void SetCompilerFilter(CompilerFilter::Filter compiler_filter) { 60 compiler_filter_ = compiler_filter; 61 } 62 63 bool IsAotCompilationEnabled() const { 64 return CompilerFilter::IsAotCompilationEnabled(compiler_filter_); 65 } 66 67 bool IsJniCompilationEnabled() const { 68 return CompilerFilter::IsJniCompilationEnabled(compiler_filter_); 69 } 70 71 bool IsQuickeningCompilationEnabled() const { 72 return CompilerFilter::IsQuickeningCompilationEnabled(compiler_filter_); 73 } 74 75 bool IsVerificationEnabled() const { 76 return CompilerFilter::IsVerificationEnabled(compiler_filter_); 77 } 78 79 bool AssumeClassesAreVerified() const { 80 return compiler_filter_ == CompilerFilter::kAssumeVerified; 81 } 82 83 bool VerifyAtRuntime() const { 84 return compiler_filter_ == CompilerFilter::kExtract; 85 } 86 87 bool IsAnyCompilationEnabled() const { 88 return CompilerFilter::IsAnyCompilationEnabled(compiler_filter_); 89 } 90 91 size_t GetHugeMethodThreshold() const { 92 return huge_method_threshold_; 93 } 94 95 size_t GetLargeMethodThreshold() const { 96 return large_method_threshold_; 97 } 98 99 size_t GetSmallMethodThreshold() const { 100 return small_method_threshold_; 101 } 102 103 size_t GetTinyMethodThreshold() const { 104 return tiny_method_threshold_; 105 } 106 107 bool IsHugeMethod(size_t num_dalvik_instructions) const { 108 return num_dalvik_instructions > huge_method_threshold_; 109 } 110 111 bool IsLargeMethod(size_t num_dalvik_instructions) const { 112 return num_dalvik_instructions > large_method_threshold_; 113 } 114 115 bool IsSmallMethod(size_t num_dalvik_instructions) const { 116 return num_dalvik_instructions > small_method_threshold_; 117 } 118 119 bool IsTinyMethod(size_t num_dalvik_instructions) const { 120 return num_dalvik_instructions > tiny_method_threshold_; 121 } 122 123 size_t GetNumDexMethodsThreshold() const { 124 return num_dex_methods_threshold_; 125 } 126 127 size_t GetInlineMaxCodeUnits() const { 128 return inline_max_code_units_; 129 } 130 void SetInlineMaxCodeUnits(size_t units) { 131 inline_max_code_units_ = units; 132 } 133 134 double GetTopKProfileThreshold() const { 135 return top_k_profile_threshold_; 136 } 137 138 bool GetDebuggable() const { 139 return debuggable_; 140 } 141 142 void SetDebuggable(bool value) { 143 debuggable_ = value; 144 } 145 146 bool GetNativeDebuggable() const { 147 return GetDebuggable() && GetGenerateDebugInfo(); 148 } 149 150 // This flag controls whether the compiler collects debugging information. 151 // The other flags control how the information is written to disk. 152 bool GenerateAnyDebugInfo() const { 153 return GetGenerateDebugInfo() || GetGenerateMiniDebugInfo(); 154 } 155 156 bool GetGenerateDebugInfo() const { 157 return generate_debug_info_; 158 } 159 160 bool GetGenerateMiniDebugInfo() const { 161 return generate_mini_debug_info_; 162 } 163 164 bool GetGenerateBuildId() const { 165 return generate_build_id_; 166 } 167 168 bool GetImplicitNullChecks() const { 169 return implicit_null_checks_; 170 } 171 172 bool GetImplicitStackOverflowChecks() const { 173 return implicit_so_checks_; 174 } 175 176 bool GetImplicitSuspendChecks() const { 177 return implicit_suspend_checks_; 178 } 179 180 bool IsBootImage() const { 181 return boot_image_; 182 } 183 184 bool IsAppImage() const { 185 return app_image_; 186 } 187 188 void DisableAppImage() { 189 app_image_ = false; 190 } 191 192 // Should the code be compiled as position independent? 193 bool GetCompilePic() const { 194 return compile_pic_; 195 } 196 197 bool HasVerboseMethods() const { 198 return !verbose_methods_.empty(); 199 } 200 201 bool IsVerboseMethod(const std::string& pretty_method) const { 202 for (const std::string& cur_method : verbose_methods_) { 203 if (pretty_method.find(cur_method) != std::string::npos) { 204 return true; 205 } 206 } 207 return false; 208 } 209 210 std::ostream* GetInitFailureOutput() const { 211 return init_failure_output_.get(); 212 } 213 214 bool AbortOnHardVerifierFailure() const { 215 return abort_on_hard_verifier_failure_; 216 } 217 218 const std::vector<const DexFile*>* GetNoInlineFromDexFile() const { 219 return no_inline_from_; 220 } 221 222 bool ParseCompilerOption(const StringPiece& option, UsageFn Usage); 223 224 void SetNonPic() { 225 compile_pic_ = false; 226 } 227 228 const std::string& GetDumpCfgFileName() const { 229 return dump_cfg_file_name_; 230 } 231 232 bool GetDumpCfgAppend() const { 233 return dump_cfg_append_; 234 } 235 236 bool IsForceDeterminism() const { 237 return force_determinism_; 238 } 239 240 RegisterAllocator::Strategy GetRegisterAllocationStrategy() const { 241 return register_allocation_strategy_; 242 } 243 244 const std::vector<std::string>* GetPassesToRun() const { 245 return passes_to_run_; 246 } 247 248 private: 249 void ParseDumpInitFailures(const StringPiece& option, UsageFn Usage); 250 void ParseDumpCfgPasses(const StringPiece& option, UsageFn Usage); 251 void ParseInlineMaxCodeUnits(const StringPiece& option, UsageFn Usage); 252 void ParseNumDexMethods(const StringPiece& option, UsageFn Usage); 253 void ParseTinyMethodMax(const StringPiece& option, UsageFn Usage); 254 void ParseSmallMethodMax(const StringPiece& option, UsageFn Usage); 255 void ParseLargeMethodMax(const StringPiece& option, UsageFn Usage); 256 void ParseHugeMethodMax(const StringPiece& option, UsageFn Usage); 257 void ParseRegisterAllocationStrategy(const StringPiece& option, UsageFn Usage); 258 259 CompilerFilter::Filter compiler_filter_; 260 size_t huge_method_threshold_; 261 size_t large_method_threshold_; 262 size_t small_method_threshold_; 263 size_t tiny_method_threshold_; 264 size_t num_dex_methods_threshold_; 265 size_t inline_max_code_units_; 266 267 // Dex files from which we should not inline code. 268 // This is usually a very short list (i.e. a single dex file), so we 269 // prefer vector<> over a lookup-oriented container, such as set<>. 270 const std::vector<const DexFile*>* no_inline_from_; 271 272 bool boot_image_; 273 bool app_image_; 274 // When using a profile file only the top K% of the profiled samples will be compiled. 275 double top_k_profile_threshold_; 276 bool debuggable_; 277 bool generate_debug_info_; 278 bool generate_mini_debug_info_; 279 bool generate_build_id_; 280 bool implicit_null_checks_; 281 bool implicit_so_checks_; 282 bool implicit_suspend_checks_; 283 bool compile_pic_; 284 285 // Vector of methods to have verbose output enabled for. 286 std::vector<std::string> verbose_methods_; 287 288 // Abort compilation with an error if we find a class that fails verification with a hard 289 // failure. 290 bool abort_on_hard_verifier_failure_; 291 292 // Log initialization of initialization failures to this stream if not null. 293 std::unique_ptr<std::ostream> init_failure_output_; 294 295 std::string dump_cfg_file_name_; 296 bool dump_cfg_append_; 297 298 // Whether the compiler should trade performance for determinism to guarantee exactly reproducible 299 // outcomes. 300 bool force_determinism_; 301 302 RegisterAllocator::Strategy register_allocation_strategy_; 303 304 // If not null, specifies optimization passes which will be run instead of defaults. 305 // Note that passes_to_run_ is not checked for correctness and providing an incorrect 306 // list of passes can lead to unexpected compiler behaviour. This is caused by dependencies 307 // between passes. Failing to satisfy them can for example lead to compiler crashes. 308 // Passing pass names which are not recognized by the compiler will result in 309 // compiler-dependant behavior. 310 const std::vector<std::string>* passes_to_run_; 311 312 friend class Dex2Oat; 313 friend class DexToDexDecompilerTest; 314 friend class CommonCompilerTest; 315 friend class verifier::VerifierDepsTest; 316 317 DISALLOW_COPY_AND_ASSIGN(CompilerOptions); 318 }; 319 320 } // namespace art 321 322 #endif // ART_COMPILER_DRIVER_COMPILER_OPTIONS_H_ 323
