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(RelaxELFRelocations, 1, 1) ///< -Wa,-mrelax-relocations={yes,no} 40CODEGENOPT(AsmVerbose , 1, 0) ///< -dA, -fverbose-asm. 41CODEGENOPT(PreserveAsmComments, 1, 1) ///< -dA, -fno-preserve-as-comments. 42CODEGENOPT(AssumeSaneOperatorNew , 1, 1) ///< implicit __attribute__((malloc)) operator new 43CODEGENOPT(AssumeUniqueVTables , 1, 1) ///< Assume a class has only one vtable. 44CODEGENOPT(Autolink , 1, 1) ///< -fno-autolink 45CODEGENOPT(AutoImport , 1, 1) ///< -fno-auto-import 46CODEGENOPT(ObjCAutoRefCountExceptions , 1, 0) ///< Whether ARC should be EH-safe. 47CODEGENOPT(Backchain , 1, 0) ///< -mbackchain 48CODEGENOPT(ControlFlowGuardNoChecks , 1, 0) ///< -cfguard-no-checks 49CODEGENOPT(ControlFlowGuard , 1, 0) ///< -cfguard 50CODEGENOPT(EHContGuard , 1, 0) ///< -ehcontguard 51CODEGENOPT(CXAAtExit , 1, 1) ///< Use __cxa_atexit for calling destructors. 52CODEGENOPT(RegisterGlobalDtorsWithAtExit, 1, 1) ///< Use atexit or __cxa_atexit to register global destructors. 53CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///< Emit complete ctors/dtors as linker 54 ///< aliases to base ctors when possible. 55CODEGENOPT(DataSections , 1, 0) ///< Set when -fdata-sections is enabled. 56CODEGENOPT(UniqueSectionNames, 1, 1) ///< Set for -funique-section-names. 57CODEGENOPT(UniqueBasicBlockSectionNames, 1, 1) ///< Set for -funique-basic-block-section-names, 58 ///< Produce unique section names with 59 ///< basic block sections. 60CODEGENOPT(EnableAIXExtendedAltivecABI, 1, 0) ///< Set for -mabi=vec-extabi. Enables the extended Altivec ABI on AIX. 61CODEGENOPT(XCOFFReadOnlyPointers, 1, 0) ///< Set for -mxcoff-roptr. 62ENUM_CODEGENOPT(FramePointer, FramePointerKind, 2, FramePointerKind::None) /// frame-pointer: all,non-leaf,none 63 64CODEGENOPT(ClearASTBeforeBackend , 1, 0) ///< Free the AST before running backend code generation. Only works with -disable-free. 65CODEGENOPT(DisableFree , 1, 0) ///< Don't free memory. 66CODEGENOPT(DiscardValueNames , 1, 0) ///< Discard Value Names from the IR (LLVMContext flag) 67CODEGENOPT(DisableLLVMPasses , 1, 0) ///< Don't run any LLVM IR passes to get 68 ///< the pristine IR generated by the 69 ///< frontend. 70CODEGENOPT(DisableLifetimeMarkers, 1, 0) ///< Don't emit any lifetime markers 71CODEGENOPT(DisableO0ImplyOptNone , 1, 0) ///< Don't annonate function with optnone at O0 72CODEGENOPT(ExperimentalStrictFloatingPoint, 1, 0) ///< Enables the new, experimental 73 ///< strict floating point. 74CODEGENOPT(EnableNoundefAttrs, 1, 0) ///< Enable emitting `noundef` attributes on IR call arguments and return values 75CODEGENOPT(DebugPassManager, 1, 0) ///< Prints debug information for the new 76 ///< pass manager. 77CODEGENOPT(DisableRedZone , 1, 0) ///< Set when -mno-red-zone is enabled. 78CODEGENOPT(EmitCallSiteInfo, 1, 0) ///< Emit call site info only in the case of 79 ///< '-g' + 'O>0' level. 80CODEGENOPT(IndirectTlsSegRefs, 1, 0) ///< Set when -mno-tls-direct-seg-refs 81 ///< is specified. 82CODEGENOPT(DisableTailCalls , 1, 0) ///< Do not emit tail calls. 83CODEGENOPT(NoEscapingBlockTailCalls, 1, 0) ///< Do not emit tail calls from 84 ///< escaping blocks. 85CODEGENOPT(EmitDeclMetadata , 1, 0) ///< Emit special metadata indicating what 86 ///< Decl* various IR entities came from. 87 ///< Only useful when running CodeGen as a 88 ///< subroutine. 89CODEGENOPT(EmitVersionIdentMetadata , 1, 1) ///< Emit compiler version metadata. 90CODEGENOPT(EmitOpenCLArgMetadata , 1, 0) ///< Emit OpenCL kernel arg metadata. 91CODEGENOPT(EmulatedTLS , 1, 0) ///< Set by default or -f[no-]emulated-tls. 92/// Embed Bitcode mode (off/all/bitcode/marker). 93ENUM_CODEGENOPT(EmbedBitcode, EmbedBitcodeKind, 2, Embed_Off) 94/// Inline asm dialect, -masm=(att|intel) 95ENUM_CODEGENOPT(InlineAsmDialect, InlineAsmDialectKind, 1, IAD_ATT) 96CODEGENOPT(ForbidGuardVariables , 1, 0) ///< Issue errors if C++ guard variables 97 ///< are required. 98CODEGENOPT(FunctionSections , 1, 0) ///< Set when -ffunction-sections is enabled. 99CODEGENOPT(InstrumentFunctions , 1, 0) ///< Set when -finstrument-functions is 100 ///< enabled. 101CODEGENOPT(InstrumentFunctionsAfterInlining , 1, 0) ///< Set when 102 ///< -finstrument-functions-after-inlining is enabled. 103CODEGENOPT(InstrumentFunctionEntryBare , 1, 0) ///< Set when 104 ///< -finstrument-function-entry-bare is enabled. 105CODEGENOPT(CFProtectionReturn , 1, 0) ///< if -fcf-protection is 106 ///< set to full or return. 107CODEGENOPT(CFProtectionBranch , 1, 0) ///< if -fcf-protection is 108 ///< set to full or branch. 109CODEGENOPT(FunctionReturnThunks, 1, 0) ///< -mfunction-return={keep|thunk-extern} 110CODEGENOPT(IndirectBranchCSPrefix, 1, 0) ///< if -mindirect-branch-cs-prefix 111 ///< is set. 112 113CODEGENOPT(XRayInstrumentFunctions , 1, 0) ///< Set when -fxray-instrument is 114 ///< enabled. 115CODEGENOPT(StackSizeSection , 1, 0) ///< Set when -fstack-size-section is enabled. 116 117///< Set when -femit-compact-unwind-non-canonical is enabled. 118CODEGENOPT(EmitCompactUnwindNonCanonical, 1, 0) 119 120///< Set when -fxray-always-emit-customevents is enabled. 121CODEGENOPT(XRayAlwaysEmitCustomEvents , 1, 0) 122 123///< Set when -fxray-always-emit-typedevents is enabled. 124CODEGENOPT(XRayAlwaysEmitTypedEvents , 1, 0) 125 126///< Set when -fxray-ignore-loops is enabled. 127CODEGENOPT(XRayIgnoreLoops , 1, 0) 128 129///< Emit the XRay function index section. 130CODEGENOPT(XRayFunctionIndex , 1, 1) 131 132 133///< Set the minimum number of instructions in a function to determine selective 134///< XRay instrumentation. 135VALUE_CODEGENOPT(XRayInstructionThreshold , 32, 200) 136 137///< Only instrument 1 in N functions, by dividing functions into N total groups and 138///< instrumenting only the specified group at a time. Group numbers start at 0 139///< and end at N-1. 140VALUE_CODEGENOPT(XRayTotalFunctionGroups, 32, 1) 141VALUE_CODEGENOPT(XRaySelectedFunctionGroup, 32, 0) 142 143VALUE_CODEGENOPT(PatchableFunctionEntryCount , 32, 0) ///< Number of NOPs at function entry 144VALUE_CODEGENOPT(PatchableFunctionEntryOffset , 32, 0) 145 146CODEGENOPT(HotPatch, 1, 0) ///< Supports the Microsoft /HOTPATCH flag and 147 ///< generates a 'patchable-function' attribute. 148 149CODEGENOPT(JMCInstrument, 1, 0) ///< Set when -fjmc is enabled. 150CODEGENOPT(InstrumentForProfiling , 1, 0) ///< Set when -pg is enabled. 151CODEGENOPT(CallFEntry , 1, 0) ///< Set when -mfentry is enabled. 152CODEGENOPT(MNopMCount , 1, 0) ///< Set when -mnop-mcount is enabled. 153CODEGENOPT(RecordMCount , 1, 0) ///< Set when -mrecord-mcount is enabled. 154CODEGENOPT(PackedStack , 1, 0) ///< Set when -mpacked-stack is enabled. 155CODEGENOPT(LessPreciseFPMAD , 1, 0) ///< Enable less precise MAD instructions to 156 ///< be generated. 157CODEGENOPT(PrepareForLTO , 1, 0) ///< Set when -flto is enabled on the 158 ///< compile step. 159CODEGENOPT(PrepareForThinLTO , 1, 0) ///< Set when -flto=thin is enabled on the 160 ///< compile step. 161CODEGENOPT(LTOUnit, 1, 0) ///< Emit IR to support LTO unit features (CFI, whole 162 ///< program vtable opt). 163CODEGENOPT(FatLTO, 1, 0) ///< Set when -ffat-lto-objects is enabled. 164CODEGENOPT(EnableSplitLTOUnit, 1, 0) ///< Enable LTO unit splitting to support 165 /// CFI and traditional whole program 166 /// devirtualization that require whole 167 /// program IR support. 168CODEGENOPT(UnifiedLTO, 1, 0) ///< Use the unified LTO pipeline. 169CODEGENOPT(IncrementalLinkerCompatible, 1, 0) ///< Emit an object file which can 170 ///< be used with an incremental 171 ///< linker. 172CODEGENOPT(MergeAllConstants , 1, 1) ///< Merge identical constants. 173CODEGENOPT(MergeFunctions , 1, 0) ///< Set when -fmerge-functions is enabled. 174CODEGENOPT(NoCommon , 1, 0) ///< Set when -fno-common or C++ is enabled. 175CODEGENOPT(NoExecStack , 1, 0) ///< Set when -Wa,--noexecstack is enabled. 176CODEGENOPT(FatalWarnings , 1, 0) ///< Set when -Wa,--fatal-warnings is 177 ///< enabled. 178CODEGENOPT(NoWarn , 1, 0) ///< Set when -Wa,--no-warn is enabled. 179CODEGENOPT(NoTypeCheck , 1, 0) ///< Set when -Wa,--no-type-check is enabled. 180CODEGENOPT(MisExpect , 1, 0) ///< Set when -Wmisexpect is enabled 181CODEGENOPT(EnableSegmentedStacks , 1, 0) ///< Set when -fsplit-stack is enabled. 182CODEGENOPT(StackClashProtector, 1, 0) ///< Set when -fstack-clash-protection is enabled. 183CODEGENOPT(NoImplicitFloat , 1, 0) ///< Set when -mno-implicit-float is enabled. 184CODEGENOPT(NullPointerIsValid , 1, 0) ///< Assume Null pointer deference is defined. 185CODEGENOPT(OpenCLCorrectlyRoundedDivSqrt, 1, 0) ///< -cl-fp32-correctly-rounded-divide-sqrt 186CODEGENOPT(HIPCorrectlyRoundedDivSqrt, 1, 1) ///< -fno-hip-fp32-correctly-rounded-divide-sqrt 187CODEGENOPT(HIPSaveKernelArgName, 1, 0) ///< Set when -fhip-kernel-arg-name is enabled. 188CODEGENOPT(UniqueInternalLinkageNames, 1, 0) ///< Internal Linkage symbols get unique names. 189CODEGENOPT(SplitMachineFunctions, 1, 0) ///< Split machine functions using profile information. 190CODEGENOPT(PPCUseFullRegisterNames, 1, 0) ///< Print full register names in assembly 191 192/// When false, this attempts to generate code as if the result of an 193/// overflowing conversion matches the overflowing behavior of a target's native 194/// float-to-int conversion instructions. 195CODEGENOPT(StrictFloatCastOverflow, 1, 1) 196 197CODEGENOPT(NoZeroInitializedInBSS , 1, 0) ///< -fno-zero-initialized-in-bss. 198/// Method of Objective-C dispatch to use. 199ENUM_CODEGENOPT(ObjCDispatchMethod, ObjCDispatchMethodKind, 2, Legacy) 200/// Replace certain message sends with calls to ObjC runtime entrypoints 201CODEGENOPT(ObjCConvertMessagesToRuntimeCalls , 1, 1) 202CODEGENOPT(ObjCAvoidHeapifyLocalBlocks, 1, 0) 203 204 205// The optimization options affect frontend options, whicn in turn do affect the AST. 206AFFECTING_VALUE_CODEGENOPT(OptimizationLevel, 2, 0) ///< The -O[0-3] option specified. 207AFFECTING_VALUE_CODEGENOPT(OptimizeSize, 2, 0) ///< If -Os (==1) or -Oz (==2) is specified. 208 209CODEGENOPT(AtomicProfileUpdate , 1, 0) ///< Set -fprofile-update=atomic 210/// Choose profile instrumenation kind or no instrumentation. 211ENUM_CODEGENOPT(ProfileInstr, ProfileInstrKind, 2, ProfileNone) 212/// Choose profile kind for PGO use compilation. 213ENUM_CODEGENOPT(ProfileUse, ProfileInstrKind, 2, ProfileNone) 214/// Partition functions into N groups and select only functions in group i to be 215/// instrumented. Selected group numbers can be 0 to N-1 inclusive. 216VALUE_CODEGENOPT(ProfileTotalFunctionGroups, 32, 1) 217VALUE_CODEGENOPT(ProfileSelectedFunctionGroup, 32, 0) 218CODEGENOPT(CoverageMapping , 1, 0) ///< Generate coverage mapping regions to 219 ///< enable code coverage analysis. 220CODEGENOPT(DumpCoverageMapping , 1, 0) ///< Dump the generated coverage mapping 221 ///< regions. 222CODEGENOPT(MCDCCoverage , 1, 0) ///< Enable MC/DC code coverage criteria. 223 224 /// If -fpcc-struct-return or -freg-struct-return is specified. 225ENUM_CODEGENOPT(StructReturnConvention, StructReturnConventionKind, 2, SRCK_Default) 226 227CODEGENOPT(RelaxAll , 1, 0) ///< Relax all machine code instructions. 228CODEGENOPT(RelaxedAliasing , 1, 0) ///< Set when -fno-strict-aliasing is enabled. 229CODEGENOPT(StructPathTBAA , 1, 0) ///< Whether or not to use struct-path TBAA. 230CODEGENOPT(NewStructPathTBAA , 1, 0) ///< Whether or not to use enhanced struct-path TBAA. 231CODEGENOPT(SaveTempLabels , 1, 0) ///< Save temporary labels. 232CODEGENOPT(SanitizeAddressUseAfterScope , 1, 0) ///< Enable use-after-scope detection 233 ///< in AddressSanitizer 234ENUM_CODEGENOPT(SanitizeAddressUseAfterReturn, 235 llvm::AsanDetectStackUseAfterReturnMode, 2, 236 llvm::AsanDetectStackUseAfterReturnMode::Runtime 237 ) ///< Set detection mode for stack-use-after-return. 238CODEGENOPT(SanitizeAddressPoisonCustomArrayCookie, 1, 239 0) ///< Enable poisoning operator new[] which is not a replaceable 240 ///< global allocation function in AddressSanitizer 241CODEGENOPT(SanitizeAddressGlobalsDeadStripping, 1, 0) ///< Enable linker dead stripping 242 ///< of globals in AddressSanitizer 243CODEGENOPT(SanitizeAddressUseOdrIndicator, 1, 0) ///< Enable ODR indicator globals 244CODEGENOPT(SanitizeMemoryTrackOrigins, 2, 0) ///< Enable tracking origins in 245 ///< MemorySanitizer 246ENUM_CODEGENOPT(SanitizeAddressDtor, llvm::AsanDtorKind, 2, 247 llvm::AsanDtorKind::Global) ///< Set how ASan global 248 ///< destructors are emitted. 249CODEGENOPT(SanitizeMemoryParamRetval, 1, 0) ///< Enable detection of uninitialized 250 ///< parameters and return values 251 ///< in MemorySanitizer 252CODEGENOPT(SanitizeMemoryUseAfterDtor, 1, 0) ///< Enable use-after-delete detection 253 ///< in MemorySanitizer 254CODEGENOPT(SanitizeCfiCrossDso, 1, 0) ///< Enable cross-dso support in CFI. 255CODEGENOPT(SanitizeMinimalRuntime, 1, 0) ///< Use "_minimal" sanitizer runtime for 256 ///< diagnostics. 257CODEGENOPT(SanitizeCfiICallGeneralizePointers, 1, 0) ///< Generalize pointer types in 258 ///< CFI icall function signatures 259CODEGENOPT(SanitizeCfiICallNormalizeIntegers, 1, 0) ///< Normalize integer types in 260 ///< CFI icall function signatures 261CODEGENOPT(SanitizeCfiCanonicalJumpTables, 1, 0) ///< Make jump table symbols canonical 262 ///< instead of creating a local jump table. 263CODEGENOPT(SanitizeCoverageType, 2, 0) ///< Type of sanitizer coverage 264 ///< instrumentation. 265CODEGENOPT(SanitizeCoverageIndirectCalls, 1, 0) ///< Enable sanitizer coverage 266 ///< for indirect calls. 267CODEGENOPT(SanitizeCoverageTraceBB, 1, 0) ///< Enable basic block tracing in 268 ///< in sanitizer coverage. 269CODEGENOPT(SanitizeCoverageTraceCmp, 1, 0) ///< Enable cmp instruction tracing 270 ///< in sanitizer coverage. 271CODEGENOPT(SanitizeCoverageTraceDiv, 1, 0) ///< Enable div instruction tracing 272 ///< in sanitizer coverage. 273CODEGENOPT(SanitizeCoverageTraceGep, 1, 0) ///< Enable GEP instruction tracing 274 ///< in sanitizer coverage. 275CODEGENOPT(SanitizeCoverage8bitCounters, 1, 0) ///< Use 8-bit frequency counters 276 ///< in sanitizer coverage. 277CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing 278 ///< in sanitizer coverage. 279CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard 280 ///< in sanitizer coverage. 281CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters. 282CODEGENOPT(SanitizeCoverageInlineBoolFlag, 1, 0) ///< Use inline bool flag. 283CODEGENOPT(SanitizeCoveragePCTable, 1, 0) ///< Create a PC Table. 284CODEGENOPT(SanitizeCoverageControlFlow, 1, 0) ///< Collect control flow 285CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning. 286CODEGENOPT(SanitizeCoverageStackDepth, 1, 0) ///< Enable max stack depth tracing 287CODEGENOPT(SanitizeCoverageTraceLoads, 1, 0) ///< Enable tracing of loads. 288CODEGENOPT(SanitizeCoverageTraceStores, 1, 0) ///< Enable tracing of stores. 289CODEGENOPT(SanitizeBinaryMetadataCovered, 1, 0) ///< Emit PCs for covered functions. 290CODEGENOPT(SanitizeBinaryMetadataAtomics, 1, 0) ///< Emit PCs for atomic operations. 291CODEGENOPT(SanitizeBinaryMetadataUAR, 1, 0) ///< Emit PCs for start of functions 292 ///< that are subject for use-after-return checking. 293CODEGENOPT(SanitizeStats , 1, 0) ///< Collect statistics for sanitizers. 294CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled. 295CODEGENOPT(SoftFloat , 1, 0) ///< -soft-float. 296CODEGENOPT(SpeculativeLoadHardening, 1, 0) ///< Enable speculative load hardening. 297CODEGENOPT(FineGrainedBitfieldAccesses, 1, 0) ///< Enable fine-grained bitfield accesses. 298CODEGENOPT(StrictEnums , 1, 0) ///< Optimize based on strict enum definition. 299CODEGENOPT(StrictVTablePointers, 1, 0) ///< Optimize based on the strict vtable pointers 300CODEGENOPT(TimePasses , 1, 0) ///< Set when -ftime-report or -ftime-report= is enabled. 301CODEGENOPT(TimePassesPerRun , 1, 0) ///< Set when -ftime-report=per-pass-run is enabled. 302CODEGENOPT(TimeTrace , 1, 0) ///< Set when -ftime-trace is enabled. 303VALUE_CODEGENOPT(TimeTraceGranularity, 32, 500) ///< Minimum time granularity (in microseconds), 304 ///< traced by time profiler 305CODEGENOPT(UnrollLoops , 1, 0) ///< Control whether loops are unrolled. 306CODEGENOPT(RerollLoops , 1, 0) ///< Control whether loops are rerolled. 307CODEGENOPT(NoUseJumpTables , 1, 0) ///< Set when -fno-jump-tables is enabled. 308VALUE_CODEGENOPT(UnwindTables, 2, 0) ///< Unwind tables (1) or asynchronous unwind tables (2) 309CODEGENOPT(VectorizeLoop , 1, 0) ///< Run loop vectorizer. 310CODEGENOPT(VectorizeSLP , 1, 0) ///< Run SLP vectorizer. 311CODEGENOPT(ProfileSampleAccurate, 1, 0) ///< Sample profile is accurate. 312 313/// Treat loops as finite: language, always, never. 314ENUM_CODEGENOPT(FiniteLoops, FiniteLoopsKind, 2, FiniteLoopsKind::Language) 315 316 /// Attempt to use register sized accesses to bit-fields in structures, when 317 /// possible. 318CODEGENOPT(UseRegisterSizedBitfieldAccess , 1, 0) 319 320CODEGENOPT(VerifyModule , 1, 1) ///< Control whether the module should be run 321 ///< through the LLVM Verifier. 322CODEGENOPT(VerifyEach , 1, 1) ///< Control whether the LLVM verifier 323 ///< should run after every pass. 324 325CODEGENOPT(StackRealignment , 1, 0) ///< Control whether to force stack 326 ///< realignment. 327CODEGENOPT(UseInitArray , 1, 0) ///< Control whether to use .init_array or 328 ///< .ctors. 329VALUE_CODEGENOPT(LoopAlignment , 32, 0) ///< Overrides default loop 330 ///< alignment, if not 0. 331VALUE_CODEGENOPT(StackAlignment , 32, 0) ///< Overrides default stack 332 ///< alignment, if not 0. 333VALUE_CODEGENOPT(StackProbeSize , 32, 4096) ///< Overrides default stack 334 ///< probe size, even if 0. 335VALUE_CODEGENOPT(WarnStackSize , 32, UINT_MAX) ///< Set via -fwarn-stack-size. 336CODEGENOPT(NoStackArgProbe, 1, 0) ///< Set when -mno-stack-arg-probe is used 337CODEGENOPT(EmitLLVMUseLists, 1, 0) ///< Control whether to serialize use-lists. 338 339CODEGENOPT(WholeProgramVTables, 1, 0) ///< Whether to apply whole-program 340 /// vtable optimization. 341 342CODEGENOPT(VirtualFunctionElimination, 1, 0) ///< Whether to apply the dead 343 /// virtual function elimination 344 /// optimization. 345 346/// Whether to use public LTO visibility for entities in std and stdext 347/// namespaces. This is enabled by clang-cl's /MT and /MTd flags. 348CODEGENOPT(LTOVisibilityPublicStd, 1, 0) 349 350/// The user specified number of registers to be used for integral arguments, 351/// or 0 if unspecified. 352VALUE_CODEGENOPT(NumRegisterParameters, 32, 0) 353 354/// The threshold to put data into small data section. 355VALUE_CODEGENOPT(SmallDataLimit, 32, 0) 356 357/// The lower bound for a buffer to be considered for stack protection. 358VALUE_CODEGENOPT(SSPBufferSize, 32, 0) 359 360/// The kind of inlining to perform. 361ENUM_CODEGENOPT(Inlining, InliningMethod, 2, NormalInlining) 362 363/// The maximum stack size a function can have to be considered for inlining. 364VALUE_CODEGENOPT(InlineMaxStackSize, 32, UINT_MAX) 365 366// Vector functions library to use. 367ENUM_CODEGENOPT(VecLib, llvm::driver::VectorLibrary, 3, llvm::driver::VectorLibrary::NoLibrary) 368 369/// The default TLS model to use. 370ENUM_CODEGENOPT(DefaultTLSModel, TLSModel, 2, GeneralDynamicTLSModel) 371 372/// Whether to enable TLSDESC. AArch64 enables TLSDESC regardless of this value. 373CODEGENOPT(EnableTLSDESC, 1, 0) 374 375/// Bit size of immediate TLS offsets (0 == use the default). 376VALUE_CODEGENOPT(TLSSize, 8, 0) 377 378/// The default stack protector guard offset to use. 379VALUE_CODEGENOPT(StackProtectorGuardOffset, 32, INT_MAX) 380 381/// Number of path components to strip when emitting checks. (0 == full 382/// filename) 383VALUE_CODEGENOPT(EmitCheckPathComponentsToStrip, 32, 0) 384 385/// Whether to report the hotness of the code region for optimization remarks. 386CODEGENOPT(DiagnosticsWithHotness, 1, 0) 387 388/// Whether to use direct access relocations (instead of GOT) to reference external data symbols. 389CODEGENOPT(DirectAccessExternalData, 1, 0) 390 391/// Whether we should use the undefined behaviour optimization for control flow 392/// paths that reach the end of a function without executing a required return. 393CODEGENOPT(StrictReturn, 1, 1) 394 395/// Whether emit pseudo probes for sample pgo profile collection. 396CODEGENOPT(PseudoProbeForProfiling, 1, 0) 397 398/// Whether 3-component vector type is preserved. 399CODEGENOPT(PreserveVec3Type, 1, 0) 400 401CODEGENOPT(NoPLT, 1, 0) 402 403/// Whether to emit all vtables 404CODEGENOPT(ForceEmitVTables, 1, 0) 405 406/// Whether to emit an address-significance table into the object file. 407CODEGENOPT(Addrsig, 1, 0) 408 409/// Whether to emit unused static constants. 410CODEGENOPT(KeepStaticConsts, 1, 0) 411 412/// Whether to emit all variables that have a persistent storage duration, 413/// including global, static and thread local variables. 414CODEGENOPT(KeepPersistentStorageVariables, 1, 0) 415 416/// Whether to follow the AAPCS enforcing at least one read before storing to a volatile bitfield 417CODEGENOPT(ForceAAPCSBitfieldLoad, 1, 0) 418 419/// Assume that by-value parameters do not alias any other values. 420CODEGENOPT(PassByValueIsNoAlias, 1, 0) 421 422/// Whether to not follow the AAPCS that enforces volatile bit-field access width to be 423/// according to the field declaring type width. 424CODEGENOPT(AAPCSBitfieldWidth, 1, 1) 425 426/// Sets the IEEE bit in the expected default floating point mode register. 427/// Floating point opcodes that support exception flag gathering quiet and 428/// propagate signaling NaN inputs per IEEE 754-2008 (AMDGPU Only) 429CODEGENOPT(EmitIEEENaNCompliantInsts, 1, 1) 430 431// Whether to emit Swift Async function extended frame information: auto, 432// never, always. 433ENUM_CODEGENOPT(SwiftAsyncFramePointer, SwiftAsyncFramePointerKind, 2, 434 SwiftAsyncFramePointerKind::Always) 435 436/// Whether to skip RAX setup when passing variable arguments (x86 only). 437CODEGENOPT(SkipRaxSetup, 1, 0) 438 439/// Whether to zero out caller-used registers before returning. 440ENUM_CODEGENOPT(ZeroCallUsedRegs, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind, 441 5, llvm::ZeroCallUsedRegs::ZeroCallUsedRegsKind::Skip) 442 443/// Modify C++ ABI to returning `this` pointer from constructors and 444/// non-deleting destructors. (No effect on Microsoft ABI.) 445CODEGENOPT(CtorDtorReturnThis, 1, 0) 446 447/// FIXME: Make DebugOptions its own top-level .def file. 448#include "DebugOptions.def" 449 450#undef CODEGENOPT 451#undef ENUM_CODEGENOPT 452#undef VALUE_CODEGENOPT 453#undef AFFECTING_VALUE_CODEGENOPT 454