LLVM 17.0.0git
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Provides information about what library functions are available for the current target. More...
#include "llvm/Analysis/TargetLibraryInfo.h"
Public Member Functions | |
TargetLibraryInfo (const TargetLibraryInfoImpl &Impl, std::optional< const Function * > F=std::nullopt) | |
TargetLibraryInfo (const TargetLibraryInfo &TLI)=default | |
TargetLibraryInfo (TargetLibraryInfo &&TLI) | |
TargetLibraryInfo & | operator= (const TargetLibraryInfo &TLI)=default |
TargetLibraryInfo & | operator= (TargetLibraryInfo &&TLI) |
bool | areInlineCompatible (const TargetLibraryInfo &CalleeTLI, bool AllowCallerSuperset) const |
Determine whether a callee with the given TLI can be inlined into caller with this TLI, based on 'nobuiltin' attributes. | |
bool | isValidProtoForLibFunc (const FunctionType &FTy, LibFunc F, const Module &M) const |
Return true if the function type FTy is valid for the library function F, regardless of whether the function is available. | |
bool | getLibFunc (StringRef funcName, LibFunc &F) const |
Searches for a particular function name. | |
bool | getLibFunc (const Function &FDecl, LibFunc &F) const |
bool | getLibFunc (const CallBase &CB, LibFunc &F) const |
If a callbase does not have the 'nobuiltin' attribute, return if the called function is a known library function and set F to that function. | |
void | disableAllFunctions () LLVM_ATTRIBUTE_UNUSED |
Disables all builtins. | |
void | setUnavailable (LibFunc F) LLVM_ATTRIBUTE_UNUSED |
Forces a function to be marked as unavailable. | |
TargetLibraryInfoImpl::AvailabilityState | getState (LibFunc F) const |
bool | has (LibFunc F) const |
Tests whether a library function is available. | |
bool | isFunctionVectorizable (StringRef F, const ElementCount &VF) const |
bool | isFunctionVectorizable (StringRef F) const |
StringRef | getVectorizedFunction (StringRef F, const ElementCount &VF) const |
bool | hasOptimizedCodeGen (LibFunc F) const |
Tests if the function is both available and a candidate for optimized code generation. | |
StringRef | getName (LibFunc F) const |
Attribute::AttrKind | getExtAttrForI32Param (bool Signed=true) const |
Attribute::AttrKind | getExtAttrForI32Return (bool Signed=true) const |
AttributeList | getAttrList (LLVMContext *C, ArrayRef< unsigned > ArgNos, bool Signed, bool Ret=false, AttributeList AL=AttributeList()) const |
unsigned | getWCharSize (const Module &M) const |
Returns the size of the wchar_t type in bytes or 0 if the size is unknown. | |
unsigned | getSizeTSize (const Module &M) const |
Returns the size of the size_t type in bits. | |
unsigned | getIntSize () const |
Get size of a C-level int or unsigned int, in bits. | |
bool | invalidate (Module &, const PreservedAnalyses &, ModuleAnalysisManager::Invalidator &) |
Handle invalidation from the pass manager. | |
bool | invalidate (Function &, const PreservedAnalyses &, FunctionAnalysisManager::Invalidator &) |
void | getWidestVF (StringRef ScalarF, ElementCount &FixedVF, ElementCount &ScalableVF) const |
Returns the largest vectorization factor used in the list of vector functions. | |
bool | isKnownVectorFunctionInLibrary (StringRef F) const |
Check if the function "F" is listed in a library known to LLVM. | |
Static Public Member Functions | |
static void | initExtensionsForTriple (bool &ShouldExtI32Param, bool &ShouldExtI32Return, bool &ShouldSignExtI32Param, bool &ShouldSignExtI32Return, const Triple &T) |
static Attribute::AttrKind | getExtAttrForI32Param (const Triple &T, bool Signed=true) |
static Attribute::AttrKind | getExtAttrForI32Return (const Triple &T, bool Signed=true) |
Friends | |
class | TargetLibraryAnalysis |
class | TargetLibraryInfoWrapperPass |
Provides information about what library functions are available for the current target.
This both allows optimizations to handle them specially and frontends to disable such optimizations through -fno-builtin etc.
Definition at line 234 of file TargetLibraryInfo.h.
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inlineexplicit |
Definition at line 246 of file TargetLibraryInfo.h.
References disableAllFunctions(), F, getLibFunc(), and setUnavailable().
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default |
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inline |
Definition at line 271 of file TargetLibraryInfo.h.
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inline |
Determine whether a callee with the given TLI can be inlined into caller with this TLI, based on 'nobuiltin' attributes.
When requested, allow inlining into a caller with a superset of the callee's nobuiltin attributes, which is conservatively correct.
Definition at line 284 of file TargetLibraryInfo.h.
References B.
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inline |
Disables all builtins.
This can be used for options like -fno-builtin.
Definition at line 324 of file TargetLibraryInfo.h.
References llvm::BitVector::set().
Referenced by TargetLibraryInfo().
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inline |
Definition at line 486 of file TargetLibraryInfo.h.
References llvm::CallingConv::C, and Signed.
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inline |
Definition at line 448 of file TargetLibraryInfo.h.
References Signed.
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inlinestatic |
Definition at line 438 of file TargetLibraryInfo.h.
References initExtensionsForTriple(), and Signed.
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inline |
Definition at line 478 of file TargetLibraryInfo.h.
References Signed.
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inlinestatic |
Definition at line 468 of file TargetLibraryInfo.h.
References initExtensionsForTriple(), and Signed.
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inline |
Get size of a C-level int or unsigned int, in bits.
Definition at line 507 of file TargetLibraryInfo.h.
References llvm::TargetLibraryInfoImpl::getIntSize().
Referenced by getIntTy().
If a callbase does not have the 'nobuiltin' attribute, return if the called function is a known library function and set F to that function.
Definition at line 316 of file TargetLibraryInfo.h.
References F, llvm::CallBase::getCalledFunction(), getLibFunc(), and llvm::CallBase::isNoBuiltin().
Definition at line 310 of file TargetLibraryInfo.h.
References F, and llvm::TargetLibraryInfoImpl::getLibFunc().
Searches for a particular function name.
If it is one of the known library functions, return true and set F to the corresponding value.
Definition at line 306 of file TargetLibraryInfo.h.
References F, and llvm::TargetLibraryInfoImpl::getLibFunc().
Referenced by llvm::callsGCLeafFunction(), llvm::MemoryOpRemark::canHandle(), llvm::ConstantFoldCall(), llvm::emitBinaryFloatFnCall(), llvm::emitUnaryFloatFnCall(), foldSqrt(), getAllocationDataForFunction(), llvm::getAllocationFamily(), llvm::MemoryLocation::getForArgument(), llvm::getFreedOperand(), llvm::getIntrinsicForCallSite(), getLibFunc(), llvm::inferNonMandatoryLibFuncAttrs(), insertSinCosCall(), isKnownLibFunction(), llvm::isLibFuncEmittable(), llvm::isMathLibCallNoop(), llvm::maybeMarkSanitizerLibraryCallNoBuiltin(), llvm::FortifiedLibCallSimplifier::optimizeCall(), llvm::LibCallSimplifier::optimizeCall(), optimizeCall(), runPartiallyInlineLibCalls(), llvm::FastISel::selectInstruction(), TargetLibraryInfo(), and llvm::InstCombinerImpl::visitFree().
Definition at line 386 of file TargetLibraryInfo.h.
References assert(), F, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and getState().
Referenced by llvm::emitCalloc(), llvm::emitFPutC(), llvm::emitFPutS(), llvm::emitFWrite(), emitLibCall(), llvm::emitMalloc(), llvm::emitPutChar(), llvm::emitPutS(), llvm::getFloatFn(), llvm::getOrInsertLibFunc(), and llvm::isLibFuncEmittable().
Returns the size of the size_t type in bits.
Definition at line 504 of file TargetLibraryInfo.h.
References llvm::TargetLibraryInfoImpl::getSizeTSize().
Referenced by getSizeTTy().
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inline |
Definition at line 333 of file TargetLibraryInfo.h.
References F.
Referenced by getName(), has(), and hasOptimizedCodeGen().
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inline |
Definition at line 349 of file TargetLibraryInfo.h.
References F, and llvm::TargetLibraryInfoImpl::getVectorizedFunction().
Referenced by addMappingsFromTLI(), and replaceWithCallToVeclib().
Returns the size of the wchar_t type in bytes or 0 if the size is unknown.
This queries the 'wchar_size' metadata.
Definition at line 499 of file TargetLibraryInfo.h.
References llvm::TargetLibraryInfoImpl::getWCharSize().
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inline |
Returns the largest vectorization factor used in the list of vector functions.
Definition at line 525 of file TargetLibraryInfo.h.
References llvm::TargetLibraryInfoImpl::getWidestVF().
Referenced by addMappingsFromTLI(), and llvm::isTLIScalarize().
Tests whether a library function is available.
Definition at line 340 of file TargetLibraryInfo.h.
References F, and getState().
Referenced by llvm::callsGCLeafFunction(), llvm::MemoryOpRemark::canHandle(), getAllocationDataForFunction(), llvm::getAllocationFamily(), llvm::MemoryLocation::getForArgument(), llvm::getFreedOperand(), llvm::getOrInsertLibFunc(), llvm::inferNonMandatoryLibFuncAttrs(), llvm::isLibFuncEmittable(), runPartiallyInlineLibCalls(), and llvm::InstCombinerImpl::visitFree().
Tests if the function is both available and a candidate for optimized code generation.
Definition at line 355 of file TargetLibraryInfo.h.
References F, and getState().
Referenced by llvm::maybeMarkSanitizerLibraryCallNoBuiltin(), and llvm::FastISel::selectInstruction().
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inlinestatic |
Definition at line 396 of file TargetLibraryInfo.h.
References llvm::Triple::sparcv9, and llvm::Triple::systemz.
Referenced by getExtAttrForI32Param(), getExtAttrForI32Return(), and initialize().
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inline |
Definition at line 519 of file TargetLibraryInfo.h.
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inline |
Handle invalidation from the pass manager.
If we try to invalidate this info, just return false. It cannot become invalid even if the module or function changes.
Definition at line 515 of file TargetLibraryInfo.h.
Definition at line 346 of file TargetLibraryInfo.h.
References F, and llvm::TargetLibraryInfoImpl::isFunctionVectorizable().
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inline |
Definition at line 343 of file TargetLibraryInfo.h.
References F, and llvm::TargetLibraryInfoImpl::isFunctionVectorizable().
Referenced by addMappingsFromTLI(), isKnownVectorFunctionInLibrary(), llvm::isTLIScalarize(), and replaceWithCallToVeclib().
Check if the function "F" is listed in a library known to LLVM.
Definition at line 531 of file TargetLibraryInfo.h.
References isFunctionVectorizable().
Referenced by isKnownLibFunction().
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inline |
Return true if the function type FTy is valid for the library function F, regardless of whether the function is available.
Definition at line 297 of file TargetLibraryInfo.h.
References F.
Referenced by llvm::isLibFuncEmittable().
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default |
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inline |
Definition at line 274 of file TargetLibraryInfo.h.
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inline |
Forces a function to be marked as unavailable.
Definition at line 329 of file TargetLibraryInfo.h.
References F, and llvm::BitVector::set().
Referenced by TargetLibraryInfo().
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friend |
Definition at line 235 of file TargetLibraryInfo.h.
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friend |
Definition at line 236 of file TargetLibraryInfo.h.