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)

	TargetLibraryInfo (const TargetLibraryInfo &TLI)

	TargetLibraryInfo (TargetLibraryInfo &&TLI)

TargetLibraryInfo &	operator= (const TargetLibraryInfo &TLI)

TargetLibraryInfo &	operator= (TargetLibraryInfo &&TLI)

bool	getLibFunc (StringRef funcName, LibFunc &F) const
	Searches for a particular function name. More...

bool	getLibFunc (const Function &FDecl, LibFunc &F) const

bool	getLibFunc (ImmutableCallSite CS, LibFunc &F) const
	If a callsite does not have the 'nobuiltin' attribute, return if the called function is a known library function and set F to that function. More...

bool	has (LibFunc F) const
	Tests whether a library function is available. More...

bool	isFunctionVectorizable (StringRef F, unsigned VF) const

bool	isFunctionVectorizable (StringRef F) const

StringRef	getVectorizedFunction (StringRef F, unsigned VF) const

bool	hasOptimizedCodeGen (LibFunc F) const
	Tests if the function is both available and a candidate for optimized code generation. More...

StringRef	getName (LibFunc F) const

Attribute::AttrKind	getExtAttrForI32Param (bool Signed=true) const
	Returns extension attribute kind to be used for i32 parameters corresponding to C-level int or unsigned int. More...

Attribute::AttrKind	getExtAttrForI32Return (bool Signed=true) const
	Returns extension attribute kind to be used for i32 return values corresponding to C-level int or unsigned int. More...

unsigned	getWCharSize (const Module &M) const
	Returns the size of the wchar_t type in bytes or 0 if the size is unknown. More...

bool	invalidate (Module &, const PreservedAnalyses &, ModuleAnalysisManager::Invalidator &)
	Handle invalidation from the pass manager. More...

bool	invalidate (Function &, const PreservedAnalyses &, FunctionAnalysisManager::Invalidator &)

Friends
class	TargetLibraryAnalysis

class	TargetLibraryInfoWrapperPass

Detailed Description

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 206 of file TargetLibraryInfo.h.

Constructor & Destructor Documentation

◆ TargetLibraryInfo() [1/3]

llvm::TargetLibraryInfo::TargetLibraryInfo ( const TargetLibraryInfoImpl & Impl )

inlineexplicit

Definition at line 213 of file TargetLibraryInfo.h.

◆ TargetLibraryInfo() [2/3]

llvm::TargetLibraryInfo::TargetLibraryInfo ( const TargetLibraryInfo & TLI )

inline

Definition at line 216 of file TargetLibraryInfo.h.

◆ TargetLibraryInfo() [3/3]

llvm::TargetLibraryInfo::TargetLibraryInfo ( TargetLibraryInfo && TLI )

inline

Definition at line 217 of file TargetLibraryInfo.h.

Member Function Documentation

◆ getExtAttrForI32Param()

Attribute::AttrKind llvm::TargetLibraryInfo::getExtAttrForI32Param ( bool Signed = true ) const

inline

Returns extension attribute kind to be used for i32 parameters corresponding to C-level int or unsigned int.

May be zeroext, signext, or none.

Definition at line 305 of file TargetLibraryInfo.h.

References llvm::Attribute::None, llvm::Attribute::SExt, Signed, and llvm::Attribute::ZExt.

Referenced by getOrInsertValueProfilingCall(), and shouldKeepInEntry().

◆ getExtAttrForI32Return()

Attribute::AttrKind llvm::TargetLibraryInfo::getExtAttrForI32Return ( bool Signed = true ) const

inline

Returns extension attribute kind to be used for i32 return values corresponding to C-level int or unsigned int.

May be zeroext, signext, or none.

Definition at line 316 of file TargetLibraryInfo.h.

References llvm::Attribute::None, llvm::Attribute::SExt, Signed, and llvm::Attribute::ZExt.

◆ getLibFunc() [1/3]

bool llvm::TargetLibraryInfo::getLibFunc	(	StringRef	funcName,
		LibFunc &	F
	)		const

inline

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 231 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::getLibFunc().

Referenced by llvm::callsGCLeafFunction(), computeUnlikelySuccessors(), FindCXAAtExit(), getAllocationDataForFunction(), llvm::MemoryLocation::getForArgument(), llvm::getIntrinsicForCallSite(), llvm::inferLibFuncAttributes(), llvm::isFreeCall(), isKnownLibFunction(), isLocallyOpenedFile(), llvm::isMathLibCallNoop(), isWriteOnlyParam(), llvm::maybeMarkSanitizerLibraryCallNoBuiltin(), llvm::FortifiedLibCallSimplifier::optimizeCall(), optimizeCall(), runPartiallyInlineLibCalls(), and shouldKeepInEntry().

◆ getLibFunc() [2/3]

bool llvm::TargetLibraryInfo::getLibFunc	(	const Function &	FDecl,
		LibFunc &	F
	)		const

inline

Definition at line 235 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::getLibFunc().

◆ getLibFunc() [3/3]

bool llvm::TargetLibraryInfo::getLibFunc	(	ImmutableCallSite	CS,
		LibFunc &	F
	)		const

inline

If a callsite 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 241 of file TargetLibraryInfo.h.

References llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::getCalledFunction(), and llvm::CallSiteBase< FunTy, BBTy, ValTy, UserTy, UseTy, InstrTy, CallTy, InvokeTy, IterTy >::isNoBuiltin().

◆ getName()

StringRef llvm::TargetLibraryInfo::getName ( LibFunc F ) const

inline

◆ getVectorizedFunction()

StringRef llvm::TargetLibraryInfo::getVectorizedFunction	(	StringRef	F,
		unsigned	VF
	)		const

inline

Definition at line 256 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::getVectorizedFunction().

Referenced by llvm::InnerLoopVectorizer::widenInstruction().

◆ getWCharSize()

unsigned llvm::TargetLibraryInfo::getWCharSize ( const Module & M ) const

inline

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 323 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::getWCharSize().

◆ has()

bool llvm::TargetLibraryInfo::has ( LibFunc F ) const

inline

Tests whether a library function is available.

Definition at line 247 of file TargetLibraryInfo.h.

Referenced by llvm::callsGCLeafFunction(), CanCombineFCOPYSIGN_EXTEND_ROUND(), llvm::canConstantFoldCallTo(), deleteDeadInstruction(), llvm::emitCalloc(), llvm::emitFGetCUnlocked(), llvm::emitFGetSUnlocked(), llvm::emitFPutC(), llvm::emitFPutCUnlocked(), llvm::emitFPutS(), llvm::emitFPutSUnlocked(), llvm::emitFReadUnlocked(), llvm::emitFWrite(), llvm::emitFWriteUnlocked(), llvm::emitMalloc(), llvm::emitMemChr(), llvm::emitMemCmp(), llvm::emitMemCpyChk(), llvm::emitPutChar(), llvm::emitPutS(), llvm::emitStrChr(), llvm::emitStrCpy(), llvm::emitStrLen(), llvm::emitStrNCmp(), llvm::emitStrNCpy(), FindCXAAtExit(), getAllocationDataForFunction(), llvm::MemoryLocation::getForArgument(), hasAnalyzableMemoryWrite(), llvm::hasUnaryFloatFn(), llvm::inferLibFuncAttributes(), llvm::isFreeCall(), isLocallyOpenedFile(), isWriteOnlyParam(), and runPartiallyInlineLibCalls().

◆ hasOptimizedCodeGen()

bool llvm::TargetLibraryInfo::hasOptimizedCodeGen ( LibFunc F ) const

inline

Tests if the function is both available and a candidate for optimized code generation.

Definition at line 262 of file TargetLibraryInfo.h.

Referenced by llvm::maybeMarkSanitizerLibraryCallNoBuiltin().

◆ invalidate() [1/2]

bool llvm::TargetLibraryInfo::invalidate	(	Module &	,
		const PreservedAnalyses &	,
		ModuleAnalysisManager::Invalidator &
	)

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 331 of file TargetLibraryInfo.h.

◆ invalidate() [2/2]

bool llvm::TargetLibraryInfo::invalidate	(	Function &	,
		const PreservedAnalyses &	,
		FunctionAnalysisManager::Invalidator &
	)

inline

Definition at line 335 of file TargetLibraryInfo.h.

◆ isFunctionVectorizable() [1/2]

bool llvm::TargetLibraryInfo::isFunctionVectorizable	(	StringRef	F,
		unsigned	VF
	)		const

inline

Definition at line 250 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::isFunctionVectorizable().

Referenced by getVectorCallCost(), isKnownLibFunction(), and llvm::MemoryDepChecker::Dependence::print().

◆ isFunctionVectorizable() [2/2]

bool llvm::TargetLibraryInfo::isFunctionVectorizable ( StringRef F ) const

inline

Definition at line 253 of file TargetLibraryInfo.h.

References llvm::TargetLibraryInfoImpl::isFunctionVectorizable().

◆ operator=() [1/2]

TargetLibraryInfo& llvm::TargetLibraryInfo::operator= ( const TargetLibraryInfo & TLI )

inline

Definition at line 218 of file TargetLibraryInfo.h.

◆ operator=() [2/2]

TargetLibraryInfo& llvm::TargetLibraryInfo::operator= ( TargetLibraryInfo && TLI )

inline

Definition at line 222 of file TargetLibraryInfo.h.

Friends And Related Function Documentation

◆ TargetLibraryAnalysis

friend class TargetLibraryAnalysis

friend

Definition at line 207 of file TargetLibraryInfo.h.

◆ TargetLibraryInfoWrapperPass

friend class TargetLibraryInfoWrapperPass

friend

Definition at line 208 of file TargetLibraryInfo.h.

The documentation for this class was generated from the following file:

include/llvm/Analysis/TargetLibraryInfo.h

Public Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ TargetLibraryInfo() [1/3]

◆ TargetLibraryInfo() [2/3]

◆ TargetLibraryInfo() [3/3]

Member Function Documentation

◆ getExtAttrForI32Param()

◆ getExtAttrForI32Return()

◆ getLibFunc() [1/3]

◆ getLibFunc() [2/3]

◆ getLibFunc() [3/3]

◆ getName()

◆ getVectorizedFunction()

◆ getWCharSize()

◆ has()

◆ hasOptimizedCodeGen()

◆ invalidate() [1/2]

◆ invalidate() [2/2]

◆ isFunctionVectorizable() [1/2]

◆ isFunctionVectorizable() [2/2]

◆ operator=() [1/2]

◆ operator=() [2/2]

Friends And Related Function Documentation

◆ TargetLibraryAnalysis

◆ TargetLibraryInfoWrapperPass