1//===--- CodeGenOptions.def - Code generation option database ----- C++ -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// This file defines the code generation options. Users of this file 10// must define the CODEGENOPT macro to make use of this information. 11// Optionally, the user may also define ENUM_CODEGENOPT (for options 12// that have enumeration type and VALUE_CODEGENOPT is a code 13// generation option that describes a value rather than a flag. 14// 15// AFFECTING_VALUE_CODEGENOPT is used for code generation options that can 16// affect the AST. 17// 18//===----------------------------------------------------------------------===// 19#ifndef CODEGENOPT 20# error Define the CODEGENOPT macro to handle language options 21#endif 22 23#ifndef VALUE_CODEGENOPT 24# define VALUE_CODEGENOPT(Name, Bits, Default) \ 25CODEGENOPT(Name, Bits, Default) 26#endif 27 28#ifndef ENUM_CODEGENOPT 29# define ENUM_CODEGENOPT(Name, Type, Bits, Default) \ 30CODEGENOPT(Name, Bits, Default) 31#endif 32 33#ifndef AFFECTING_VALUE_CODEGENOPT 34# define AFFECTING_VALUE_CODEGENOPT(Name, Bits, Default) \ 35VALUE_CODEGENOPT(Name, Bits, Default) 36#endif 37 38CODEGENOPT(DisableIntegratedAS, 1, 0) ///< -no-integrated-as 39CODEGENOPT(Crel, 1, 0) ///< -Wa,--crel 40CODEGENOPT(ImplicitMapSyms, 1, 0) ///< -Wa,-mmapsyms=implicit 41CODEGENOPT(AsmVerbose , 1, 0) ///< -dA, -fverbose-asm. 42CODEGENOPT(PreserveAsmComments, 1, 1) ///< -dA, -fno-preserve-as-comments. 43CODEGENOPT(AssumeSaneOperatorNew , 1, 1) ///< implicit __attribute__((malloc)) operator new 44CODEGENOPT(AssumeUniqueVTables , 1, 1) ///< Assume a class has only one vtable. 45CODEGENOPT(Autolink , 1, 1) ///< -fno-autolink 46CODEGENOPT(AutoImport , 1, 1) ///< -fno-auto-import 47CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe. 48CODEGENOPT(Backchain , 1, 0) ///< -mbackchain 49CODEGENOPT(ControlFlowGuardNoChecks , 1, 0) ///< -cfguard-no-checks 50CODEGENOPT(ControlFlowGuard , 1, 0) ///< -cfguard 51CODEGENOPT(EHContGuard , 1, 0) ///< -ehcontguard 52CODEGENOPT(CXAAtExit , 1, 1) ///< Use __cxa_atexit for calling destructors. 53CODEGENOPT(RegisterGlobalDtorsWithAtExit, 1, 1) ///< Use atexit or __cxa_atexit to register global destructors. 54CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///< Emit complete ctors/dtors as linker 55 ///< aliases to base ctors when possible. 56CODEGENOPT(DataSections , 1, 0) ///< Set when -fdata-sections is enabled. 57CODEGENOPT(UniqueSectionNames, 1, 1) ///< Set for -funique-section-names. 58CODEGENOPT(UniqueBasicBlockSectionNames, 1, 1) ///< Set for -funique-basic-block-section-names, 59 ///< Produce unique section names with 60 ///< basic block sections. 61CODEGENOPT(SeparateNamedSections, 1, 0) ///< Set for -fseparate-named-sections. 62CODEGENOPT(EnableAIXExtendedAltivecABI, 1, 0) ///< Set for -mabi=vec-extabi. Enables the extended Altivec ABI on AIX. 63CODEGENOPT(XCOFFReadOnlyPointers, 1, 0) ///< Set for -mxcoff-roptr. 64CODEGENOPT(AllTocData, 1, 0) ///< AIX -mtocdata 65ENUM_CODEGENOPT(FramePointer, FramePointerKind, 2, FramePointerKind::None) /// frame-pointer: all,non-leaf,reserved,none 66 67CODEGENOPT(ClearASTBeforeBackend , 1, 0) ///< Free the AST before running backend code generation. Only works with -disable-free. 68CODEGENOPT(DisableFree , 1, 0) ///< Don't free memory. 69CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag) 70CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get 71 ///< the pristine IR generated by the 72 ///< frontend. 73CODEGENOPT(DisableLifetimeMarkers, 1, 0) ///< Don't emit any lifetime markers 74CODEGENOPT(DisableO0ImplyOptNone , 1, 0) ///< Don't annonate function with optnone at O0 75CODEGENOPT(ExperimentalStrictFloatingPoint, 1, 0) ///< Enables the new, experimental 76 ///< strict floating point. 77CODEGENOPT(EnableNoundefAttrs, 1, 0) ///< Enable emitting `noundef` attributes on IR call arguments and return values 78CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new 79 ///< pass manager. 80CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled. 81CODEGENOPT(EmitCallSiteInfo, 1, 0) ///< Emit call site info only in the case of 82 ///< '-g' + 'O>0' level. 83CODEGENOPT(IndirectTlsSegRefs, 1, 0) ///< Set when -mno-tls-direct-seg-refs 84 ///< is specified. 85CODEGENOPT(DisableTailCalls , 1, 0) ///< Do not emit tail calls. 86CODEGENOPT(NoEscapingBlockTailCalls, 1, 0) ///< Do not emit tail calls from 87 ///< escaping blocks. 88CODEGENOPT(EmitDeclMetadata , 1, 0) ///< Emit special metadata indicating what 89 ///< Decl* various IR entities came from. 90 ///< Only useful when running CodeGen as a 91 ///< subroutine. 92CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata. 93CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata. 94CODEGENOPT(EmulatedTLS , 1, 0) ///< Set by default or -f[no-]emulated-tls. 95/// Embed Bitcode mode (off/all/bitcode/marker). 96ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off) 97/// Inline asm dialect, -masm=(att|intel) 98ENUM_CODEGENOPT(InlineAsmDialect, InlineAsmDialectKind, 1, IAD_ATT) 99CODEGENOPT(OutputAsmVariant, 2, 3) ///< Set the asm variant for output (3: unspecified). 100CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables 101 ///< are required. 102CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections is enabled. 103CODEGENOPT(BBAddrMap , 1, 0) ///< Set when -fbasic-block-address-map is enabled. 104CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is 105 ///< enabled. 106CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when 107 ///< -finstrument-functions-after-inlining is enabled. 108CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when 109 ///< -finstrument-function-entry-bare is enabled. 110CODEGENOPT(CFProtectionReturn , 1, 0) ///< if -fcf-protection is 111 ///< set to full or return. 112CODEGENOPT(CFProtectionBranch , 1, 0) ///< if -fcf-protection is 113 ///< set to full or branch. 114ENUM_CODEGENOPT(CFBranchLabelScheme, CFBranchLabelSchemeKind, 2, 115 CFBranchLabelSchemeKind::Default) ///< if -mcf-branch-label-scheme is set. 116CODEGENOPT(FunctionReturnThunks, 1, 0) ///< -mfunction-return={keep|thunk-extern} 117CODEGENOPT(IndirectBranchCSPrefix, 1, 0) ///< if -mindirect-branch-cs-prefix 118 ///< is set. 119 120CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is 121 ///< enabled. 122CODEGENOPT(StackSizeSection , 1, 0) ///< Set when -fstack-size-section is enabled. 123 124///< Set when -femit-compact-unwind-non-canonical is enabled. 125CODEGENOPT(EmitCompactUnwindNonCanonical, 1, 0) 126 127///< Set when -fxray-always-emit-customevents is enabled. 128CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0) 129 130///< Set when -fxray-always-emit-typedevents is enabled. 131CODEGENOPT(XRayAlwaysEmitTypedEvents , 1, 0) 132 133///< Set when -fxray-ignore-loops is enabled. 134CODEGENOPT(XRayIgnoreLoops , 1, 0) 135 136///< Emit the XRay function index section. 137CODEGENOPT(XRayFunctionIndex , 1, 1) 138 139///< Set when -fxray-shared is enabled 140CODEGENOPT(XRayShared , 1, 0) 141 142///< Set the minimum number of instructions in a function to determine selective 143///< XRay instrumentation. 144VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200) 145 146///< Only instrument 1 in N functions, by dividing functions into N total groups and 147///< instrumenting only the specified group at a time. Group numbers start at 0 148///< and end at N-1. 149VALUE_CODEGENOPT(XRayTotalFunctionGroups, 32, 1) 150VALUE_CODEGENOPT(XRaySelectedFunctionGroup, 32, 0) 151 152VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry 153VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0) 154 155CODEGENOPT(HotPatch, 1, 0) ///< Supports the Microsoft /HOTPATCH flag and 156 ///< generates a 'patchable-function' attribute. 157 158CODEGENOPT(TlsGuards , 1, 1) ///< Controls emission of tls guards via -fms-tls-guards 159CODEGENOPT(JMCInstrument, 1, 0) ///< Set when -fjmc is enabled. 160CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled. 161CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled. 162CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled. 163CODEGENOPT(RecordMCount , 1, 0) ///< Set when -mrecord-mcount is enabled. 164CODEGENOPT(PackedStack , 1, 0) ///< Set when -mpacked-stack is enabled. 165CODEGENOPT(LessPreciseFPMAD , 1, 0) ///< Enable less precise MAD instructions to 166 ///< be generated. 167CODEGENOPT(PrepareForLTO , 1, 0) ///< Set when -flto is enabled on the 168 ///< compile step. 169CODEGENOPT(PrepareForThinLTO , 1, 0) ///< Set when -flto=thin is enabled on the 170 ///< compile step. 171CODEGENOPT(LTOUnit, 1, 0) ///< Emit IR to support LTO unit features (CFI, whole 172 ///< program vtable opt). 173CODEGENOPT(FatLTO, 1, 0) ///< Set when -ffat-lto-objects is enabled. 174CODEGENOPT(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support 175 /// CFI and traditional whole program 176 /// devirtualization that require whole 177 /// program IR support. 178CODEGENOPT(UnifiedLTO, 1, 0) ///< Use the unified LTO pipeline. 179CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can 180 ///< be used with an incremental 181 ///< linker. 182CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants. 183CODEGENOPT(MergeFunctions , 1, 0) ///< Set when -fmerge-functions is enabled. 184CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled. 185CODEGENOPT(NoExecStack , 1, 0) ///< Set when -Wa,--noexecstack is enabled. 186CODEGENOPT(MipsMsa , 1, 0) ///< Set when -Wa,-mmsa is enabled. 187CODEGENOPT(FatalWarnings , 1, 0) ///< Set when -Wa,--fatal-warnings is 188 ///< enabled. 189CODEGENOPT(NoWarn , 1, 0) ///< Set when -Wa,--no-warn is enabled. 190CODEGENOPT(NoTypeCheck , 1, 0) ///< Set when -Wa,--no-type-check is enabled. 191CODEGENOPT(MisExpect , 1, 0) ///< Set when -Wmisexpect is enabled 192CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled. 193CODEGENOPT(StackClashProtector, 1, 0) ///< Set when -fstack-clash-protection is enabled. 194CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled. 195CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined. 196CODEGENOPT(OpenCLCorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt 197CODEGENOPT(HIPCorrectlyRoundedDivSqrt, 1, 1) ///< -fno-hip-fp32-correctly-rounded-divide-sqrt 198CODEGENOPT(DisableBlockSignatureString, 1, 0) ///< Set when -fdisable-block-signature-string is enabled. 199CODEGENOPT(HIPSaveKernelArgName, 1, 0) ///< Set when -fhip-kernel-arg-name is enabled. 200CODEGENOPT(UniqueInternalLinkageNames, 1, 0) ///< Internal Linkage symbols get unique names. 201CODEGENOPT(SplitMachineFunctions, 1, 0) ///< Split machine functions using profile information. 202CODEGENOPT(PPCUseFullRegisterNames, 1, 0) ///< Print full register names in assembly 203CODEGENOPT(X86RelaxRelocations, 1, 1) ///< -Wa,-mrelax-relocations={yes,no} 204CODEGENOPT(X86Sse2Avx , 1, 0) ///< -Wa,-msse2avx 205 206/// When false, this attempts to generate code as if the result of an 207/// overflowing conversion matches the overflowing behavior of a target's native 208/// float-to-int conversion instructions. 209CODEGENOPT(StrictFloatCastOverflow, 1, 1) 210 211CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss. 212/// Method of Objective-C dispatch to use. 213ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy) 214/// Replace certain message sends with calls to ObjC runtime entrypoints 215CODEGENOPT(ObjCConvertMessagesToRuntimeCalls , 1, 1) 216CODEGENOPT(ObjCAvoidHeapifyLocalBlocks, 1, 0) 217 218 219// The optimization options affect frontend options, whicn in turn do affect the AST. 220AFFECTING_VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified. 221AFFECTING_VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified. 222 223CODEGENOPT(AtomicProfileUpdate , 1, 0) ///< Set -fprofile-update=atomic 224/// Choose profile instrumenation kind or no instrumentation. 225ENUM_CODEGENOPT(ProfileInstr, ProfileInstrKind, 2, ProfileNone) 226/// Choose profile kind for PGO use compilation. 227ENUM_CODEGENOPT(ProfileUse, ProfileInstrKind, 2, ProfileNone) 228/// Partition functions into N groups and select only functions in group i to be 229/// instrumented. Selected group numbers can be 0 to N-1 inclusive. 230VALUE_CODEGENOPT(ProfileTotalFunctionGroups, 32, 1) 231VALUE_CODEGENOPT(ProfileSelectedFunctionGroup, 32, 0) 232CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to 233 ///< enable code coverage analysis. 234CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping 235 ///< regions. 236CODEGENOPT(MCDCCoverage , 1, 0) ///< Enable MC/DC code coverage criteria. 237VALUE_CODEGENOPT(MCDCMaxConds, 16, 32767) ///< MC/DC Maximum conditions. 238VALUE_CODEGENOPT(MCDCMaxTVs, 32, 0x7FFFFFFE) ///< MC/DC Maximum test vectors. 239 240 /// If -fpcc-struct-return or -freg-struct-return is specified. 241ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default) 242 243CODEGENOPT(RelaxAll , 1, 0) ///< Relax all machine code instructions. 244CODEGENOPT(RelaxedAliasing , 1, 0) ///< Set when -fno-strict-aliasing is enabled. 245CODEGENOPT(PointerTBAA , 1, 1) ///< Whether or not to use distinct TBAA tags for pointers. 246CODEGENOPT(StructPathTBAA , 1, 0) ///< Whether or not to use struct-path TBAA. 247CODEGENOPT(NewStructPathTBAA , 1, 0) ///< Whether or not to use enhanced struct-path TBAA. 248CODEGENOPT(SaveTempLabels , 1, 0) ///< Save temporary labels. 249CODEGENOPT(SanitizeAddressUseAfterScope , 1, 0) ///< Enable use-after-scope detection 250 ///< in AddressSanitizer 251ENUM_CODEGENOPT(SanitizeAddressUseAfterReturn, 252 llvm::AsanDetectStackUseAfterReturnMode, 2, 253 llvm::AsanDetectStackUseAfterReturnMode::Runtime 254 ) ///< Set detection mode for stack-use-after-return. 255CODEGENOPT(SanitizeAddressPoisonCustomArrayCookie, 1, 256 0) ///< Enable poisoning operator new[] which is not a replaceable 257 ///< global allocation function in AddressSanitizer 258CODEGENOPT(SanitizeAddressGlobalsDeadStripping, 1, 0) ///< Enable linker dead stripping 259 ///< of globals in AddressSanitizer 260CODEGENOPT(SanitizeAddressUseOdrIndicator, 1, 0) ///< Enable ODR indicator globals 261CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in 262 ///< MemorySanitizer 263ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2, 264 llvm::AsanDtorKind::Global) ///< Set how ASan global 265 ///< destructors are emitted. 266CODEGENOPT(SanitizeMemoryParamRetval, 1, 0) ///< Enable detection of uninitialized 267 ///< parameters and return values 268 ///< in MemorySanitizer 269CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection 270 ///< in MemorySanitizer 271CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI. 272CODEGENOPT(SanitizeMinimalRuntime, 1, 0) ///< Use "_minimal" sanitizer runtime for 273 ///< diagnostics. 274CODEGENOPT(SanitizeCfiICallGeneralizePointers, 1, 0) ///< Generalize pointer types in 275 ///< CFI icall function signatures 276CODEGENOPT(SanitizeCfiICallNormalizeIntegers, 1, 0) ///< Normalize integer types in 277 ///< CFI icall function signatures 278CODEGENOPT(SanitizeCfiCanonicalJumpTables, 1, 0) ///< Make jump table symbols canonical 279 ///< instead of creating a local jump table. 280CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage 281 ///< instrumentation. 282CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage 283 ///< for indirect calls. 284CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in 285 ///< in sanitizer coverage. 286CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing 287 ///< in sanitizer coverage. 288CODEGENOPT(SanitizeCoverageTraceDiv, 1, 0) ///< Enable div instruction tracing 289 ///< in sanitizer coverage. 290CODEGENOPT(SanitizeCoverageTraceGep, 1, 0) ///< Enable GEP instruction tracing 291 ///< in sanitizer coverage. 292CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters 293 ///< in sanitizer coverage. 294CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing 295 ///< in sanitizer coverage. 296CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard 297 ///< in sanitizer coverage. 298CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters. 299CODEGENOPT(SanitizeCoverageInlineBoolFlag, 1, 0) ///< Use inline bool flag. 300CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table. 301CODEGENOPT(SanitizeCoverageControlFlow, 1, 0) ///< Collect control flow 302CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning. 303CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing 304CODEGENOPT(SanitizeCoverageTraceLoads, 1, 0) ///< Enable tracing of loads. 305CODEGENOPT(SanitizeCoverageTraceStores, 1, 0) ///< Enable tracing of stores. 306CODEGENOPT(SanitizeBinaryMetadataCovered, 1, 0) ///< Emit PCs for covered functions. 307CODEGENOPT(SanitizeBinaryMetadataAtomics, 1, 0) ///< Emit PCs for atomic operations. 308CODEGENOPT(SanitizeBinaryMetadataUAR, 1, 0) ///< Emit PCs for start of functions 309 ///< that are subject for use-after-return checking. 310CODEGENOPT(SanitizeStats , 1, 0) ///< Collect statistics for sanitizers. 311CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled. 312CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float. 313CODEGENOPT(SpeculativeLoadHardening, 1, 0) ///< Enable speculative load hardening. 314CODEGENOPT(FineGrainedBitfieldAccesses, 1, 0) ///< Enable fine-grained bitfield accesses. 315CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum definition. 316CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers 317CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report or -ftime-report= is enabled. 318CODEGENOPT(TimePassesPerRun , 1, 0) ///< Set when -ftime-report=per-pass-run is enabled. 319CODEGENOPT(TimeTrace , 1, 0) ///< Set when -ftime-trace is enabled. 320VALUE_CODEGENOPT(TimeTraceGranularity, 32, 500) ///< Minimum time granularity (in microseconds), 321 ///< traced by time profiler 322CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are unrolled. 323CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are rerolled. 324CODEGENOPT(NoUseJumpTables , 1, 0) ///< Set when -fno-jump-tables is enabled. 325VALUE_CODEGENOPT(UnwindTables, 2, 0) ///< Unwind tables (1) or asynchronous unwind tables (2) 326CODEGENOPT(LinkBitcodePostopt, 1, 0) ///< Link builtin bitcodes after optimization pipeline. 327CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer. 328CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer. 329CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate. 330 331/// Treat loops as finite: language, always, never. 332ENUM_CODEGENOPT(FiniteLoops, FiniteLoopsKind, 2, FiniteLoopsKind::Language) 333 334 /// Attempt to use register sized accesses to bit-fields in structures, when 335 /// possible. 336CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0) 337 338CODEGENOPT(VerifyModule , 1, 1) ///< Control whether the module should be run 339 ///< through the LLVM Verifier. 340CODEGENOPT(VerifyEach , 1, 1) ///< Control whether the LLVM verifier 341 ///< should run after every pass. 342 343CODEGENOPT(StackRealignment , 1, 0) ///< Control whether to force stack 344 ///< realignment. 345CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or 346 ///< .ctors. 347VALUE_CODEGENOPT(LoopAlignment , 32, 0) ///< Overrides default loop 348 ///< alignment, if not 0. 349VALUE_CODEGENOPT(StackAlignment , 32, 0) ///< Overrides default stack 350 ///< alignment, if not 0. 351VALUE_CODEGENOPT(StackProbeSize , 32, 4096) ///< Overrides default stack 352 ///< probe size, even if 0. 353VALUE_CODEGENOPT(WarnStackSize , 32, UINT_MAX) ///< Set via -fwarn-stack-size. 354CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used 355CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists. 356 357CODEGENOPT(WholeProgramVTables, 1, 0) ///< Whether to apply whole-program 358 /// vtable optimization. 359 360CODEGENOPT(VirtualFunctionElimination, 1, 0) ///< Whether to apply the dead 361 /// virtual function elimination 362 /// optimization. 363 364/// Whether to use public LTO visibility for entities in std and stdext 365/// namespaces. This is enabled by clang-cl's /MT and /MTd flags. 366CODEGENOPT(LTOVisibilityPublicStd, 1, 0) 367 368/// The user specified number of registers to be used for integral arguments, 369/// or 0 if unspecified. 370VALUE_CODEGENOPT(NumRegisterParameters, 32, 0) 371 372/// The threshold to put data into small data section. 373VALUE_CODEGENOPT(SmallDataLimit, 32, 0) 374 375/// The lower bound for a buffer to be considered for stack protection. 376VALUE_CODEGENOPT(SSPBufferSize, 32, 0) 377 378/// The kind of inlining to perform. 379ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining) 380 381/// The maximum stack size a function can have to be considered for inlining. 382VALUE_CODEGENOPT(InlineMaxStackSize, 32, UINT_MAX) 383 384// Vector functions library to use. 385ENUM_CODEGENOPT(VecLib, llvm::driver::VectorLibrary, 3, llvm::driver::VectorLibrary::NoLibrary) 386 387/// The default TLS model to use. 388ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel) 389 390/// Whether to enable TLSDESC. AArch64 enables TLSDESC regardless of this value. 391CODEGENOPT(EnableTLSDESC, 1, 0) 392 393/// Bit size of immediate TLS offsets (0 == use the default). 394VALUE_CODEGENOPT(TLSSize, 8, 0) 395 396/// The types of variables that we will extend the live ranges of. 397ENUM_CODEGENOPT(ExtendVariableLiveness, ExtendVariableLivenessKind, 2, ExtendVariableLivenessKind::None) 398 399/// The default stack protector guard offset to use. 400VALUE_CODEGENOPT(StackProtectorGuardOffset, 32, INT_MAX) 401 402/// Number of path components to strip when emitting checks. (0 == full 403/// filename) 404VALUE_CODEGENOPT(EmitCheckPathComponentsToStrip, 32, 0) 405 406/// Whether to report the hotness of the code region for optimization remarks. 407CODEGENOPT(DiagnosticsWithHotness, 1, 0) 408 409/// Whether to use direct access relocations (instead of GOT) to reference external data symbols. 410CODEGENOPT(DirectAccessExternalData, 1, 0) 411 412/// Whether we should use the undefined behaviour optimization for control flow 413/// paths that reach the end of a function without executing a required return. 414CODEGENOPT(StrictReturn, 1, 1) 415 416/// Whether emit pseudo probes for sample pgo profile collection. 417CODEGENOPT(PseudoProbeForProfiling, 1, 0) 418 419CODEGENOPT(NoPLT, 1, 0) 420 421/// Whether to emit all vtables 422CODEGENOPT(ForceEmitVTables, 1, 0) 423 424/// Whether to emit an address-significance table into the object file. 425CODEGENOPT(Addrsig, 1, 0) 426 427/// Whether to emit unused static constants. 428CODEGENOPT(KeepStaticConsts, 1, 0) 429 430/// Whether to emit all variables that have a persistent storage duration, 431/// including global, static and thread local variables. 432CODEGENOPT(KeepPersistentStorageVariables, 1, 0) 433 434/// Whether to follow the AAPCS enforcing at least one read before storing to a volatile bitfield 435CODEGENOPT(ForceAAPCSBitfieldLoad, 1, 0) 436 437/// Assume that by-value parameters do not alias any other values. 438CODEGENOPT(PassByValueIsNoAlias, 1, 0) 439 440/// Whether to store register parameters to stack. 441CODEGENOPT(SaveRegParams, 1, 0) 442 443/// Whether to not follow the AAPCS that enforces volatile bit-field access width to be 444/// according to the field declaring type width. 445CODEGENOPT(AAPCSBitfieldWidth, 1, 1) 446 447/// Sets the IEEE bit in the expected default floating point mode register. 448/// Floating point opcodes that support exception flag gathering quiet and 449/// propagate signaling NaN inputs per IEEE 754-2008 (AMDGPU Only) 450CODEGENOPT(EmitIEEENaNCompliantInsts, 1, 1) 451 452// Whether to emit Swift Async function extended frame information: auto, 453// never, always. 454ENUM_CODEGENOPT(SwiftAsyncFramePointer, SwiftAsyncFramePointerKind, 2, 455 SwiftAsyncFramePointerKind::Always) 456 457/// Whether to skip RAX setup when passing variable arguments (x86 only). 458CODEGENOPT(SkipRaxSetup, 1, 0) 459 460/// Whether to zero out caller-used registers before returning. 461ENUM_CODEGENOPT(ZeroCallUsedRegs, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind, 462 5, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind::Skip) 463 464/// Modify C++ ABI to returning `this` pointer from constructors and 465/// non-deleting destructors. (No effect on Microsoft ABI.) 466CODEGENOPT(CtorDtorReturnThis, 1, 0) 467 468/// FIXME: Make DebugOptions its own top-level .def file. 469#include "DebugOptions.def" 470 471#undef CODEGENOPT 472#undef ENUM_CODEGENOPT 473#undef VALUE_CODEGENOPT 474#undef AFFECTING_VALUE_CODEGENOPT 475