#include "llvm/Transforms/Utils/BuildLibCalls.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/MemoryBuiltins.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/TypeSize.h"
#include <optional>

Macros
#define	DEBUG_TYPE "build-libcalls"

Functions
	STATISTIC (NumReadNone, "Number of functions inferred as readnone")

	STATISTIC (NumInaccessibleMemOnly, "Number of functions inferred as inaccessiblememonly")

	STATISTIC (NumReadOnly, "Number of functions inferred as readonly")

	STATISTIC (NumWriteOnly, "Number of functions inferred as writeonly")

	STATISTIC (NumArgMemOnly, "Number of functions inferred as argmemonly")

	STATISTIC (NumInaccessibleMemOrArgMemOnly, "Number of functions inferred as inaccessiblemem_or_argmemonly")

	STATISTIC (NumNoUnwind, "Number of functions inferred as nounwind")

	STATISTIC (NumNoCapture, "Number of arguments inferred as nocapture")

	STATISTIC (NumWriteOnlyArg, "Number of arguments inferred as writeonly")

	STATISTIC (NumReadOnlyArg, "Number of arguments inferred as readonly")

	STATISTIC (NumNoAlias, "Number of function returns inferred as noalias")

	STATISTIC (NumNoUndef, "Number of function returns inferred as noundef returns")

	STATISTIC (NumReturnedArg, "Number of arguments inferred as returned")

	STATISTIC (NumWillReturn, "Number of functions inferred as willreturn")

	STATISTIC (NumCold, "Number of functions inferred as cold")

	STATISTIC (NumNoReturn, "Number of functions inferred as no return")

static bool	setDoesNotAccessMemory (Function &F)

static bool	setIsCold (Function &F)

static bool	setNoReturn (Function &F)

static bool	setOnlyAccessesInaccessibleMemory (Function &F)

static bool	setOnlyReadsMemory (Function &F)

static bool	setOnlyWritesMemory (Function &F)

static bool	setOnlyAccessesArgMemory (Function &F)

static bool	setOnlyAccessesInaccessibleMemOrArgMem (Function &F)

static bool	setDoesNotThrow (Function &F)

static bool	setRetDoesNotAlias (Function &F)

static bool	setDoesNotCapture (Function &F, unsigned ArgNo)

static bool	setDoesNotAlias (Function &F, unsigned ArgNo)

static bool	setOnlyReadsMemory (Function &F, unsigned ArgNo)

static bool	setOnlyWritesMemory (Function &F, unsigned ArgNo)

static bool	setRetNoUndef (Function &F)

static bool	setArgsNoUndef (Function &F)

static bool	setArgNoUndef (Function &F, unsigned ArgNo)

static bool	setRetAndArgsNoUndef (Function &F)

static bool	setReturnedArg (Function &F, unsigned ArgNo)

static bool	setNonLazyBind (Function &F)

static bool	setDoesNotFreeMemory (Function &F)

static bool	setWillReturn (Function &F)

static bool	setAlignedAllocParam (Function &F, unsigned ArgNo)

static bool	setAllocatedPointerParam (Function &F, unsigned ArgNo)

static bool	setAllocSize (Function &F, unsigned ElemSizeArg, std::optional< unsigned > NumElemsArg)

static bool	setAllocFamily (Function &F, StringRef Family)

static bool	setAllocKind (Function &F, AllocFnKind K)

static void	setArgExtAttr (Function &F, unsigned ArgNo, const TargetLibraryInfo &TLI, bool Signed=true)

static void	setRetExtAttr (Function &F, const TargetLibraryInfo &TLI, bool Signed=true)

static IntegerType *	getIntTy (IRBuilderBase &B, const TargetLibraryInfo *TLI)

static IntegerType *	getSizeTTy (IRBuilderBase &B, const TargetLibraryInfo *TLI)

static Value *	emitLibCall (LibFunc TheLibFunc, Type ReturnType, ArrayRef< Type > ParamTypes, ArrayRef< Value * > Operands, IRBuilderBase &B, const TargetLibraryInfo *TLI, bool IsVaArgs=false)

static void	appendTypeSuffix (Value *Op, StringRef &Name, SmallString< 20 > &NameBuffer)
	Append a suffix to the function name according to the type of 'Op'.

static Value *	emitUnaryFloatFnCallHelper (Value Op, LibFunc TheLibFunc, StringRef Name, IRBuilderBase &B, const AttributeList &Attrs, const TargetLibraryInfo TLI)

static Value *	emitBinaryFloatFnCallHelper (Value Op1, Value Op2, LibFunc TheLibFunc, StringRef Name, IRBuilderBase &B, const AttributeList &Attrs, const TargetLibraryInfo *TLI)

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE "build-libcalls"

Definition at line 32 of file BuildLibCalls.cpp.

Function Documentation

◆ appendTypeSuffix()

static void appendTypeSuffix	(	Value *	Op,
		StringRef &	Name,
		SmallString< 20 > &	NameBuffer
	)

static

Append a suffix to the function name according to the type of 'Op'.

Definition at line 1726 of file BuildLibCalls.cpp.

References Name.

Referenced by llvm::emitBinaryFloatFnCall(), and llvm::emitUnaryFloatFnCall().

◆ emitBinaryFloatFnCallHelper()

static Value * emitBinaryFloatFnCallHelper	(	Value *	Op1,
		Value *	Op2,
		LibFunc	TheLibFunc,
		StringRef	Name,
		IRBuilderBase &	B,
		const AttributeList &	Attrs,
		const TargetLibraryInfo *	TLI
	)

static

Definition at line 1788 of file BuildLibCalls.cpp.

References assert(), B, F, llvm::getOrInsertLibFunc(), llvm::Value::getType(), llvm::inferNonMandatoryLibFuncAttrs(), Name, llvm::CallBase::setAttributes(), and llvm::CallBase::setCallingConv().

Referenced by llvm::emitBinaryFloatFnCall().

◆ emitLibCall()

static Value * emitLibCall	(	LibFunc	TheLibFunc,
		Type *	ReturnType,
		ArrayRef< Type * >	ParamTypes,
		ArrayRef< Value * >	Operands,
		IRBuilderBase &	B,
		const TargetLibraryInfo *	TLI,
		bool	IsVaArgs = `false`
	)

static

◆ emitUnaryFloatFnCallHelper()

static Value * emitUnaryFloatFnCallHelper	(	Value *	Op,
		LibFunc	TheLibFunc,
		StringRef	Name,
		IRBuilderBase &	B,
		const AttributeList &	Attrs,
		const TargetLibraryInfo *	TLI
	)

static

Definition at line 1740 of file BuildLibCalls.cpp.

References assert(), B, F, llvm::getOrInsertLibFunc(), Name, llvm::CallBase::setAttributes(), and llvm::CallBase::setCallingConv().

Referenced by llvm::emitUnaryFloatFnCall().

◆ getIntTy()

static IntegerType * getIntTy	(	IRBuilderBase &	B,
		const TargetLibraryInfo *	TLI
	)

static

Definition at line 1473 of file BuildLibCalls.cpp.

References B, and llvm::TargetLibraryInfo::getIntSize().

Referenced by llvm::emitBCmp(), llvm::emitFPutC(), llvm::emitFPutS(), llvm::emitMemCCpy(), llvm::emitMemChr(), llvm::emitMemCmp(), llvm::emitMemRChr(), llvm::emitPutChar(), llvm::emitPutS(), llvm::emitSNPrintf(), llvm::emitSPrintf(), llvm::emitStrChr(), llvm::emitStrNCmp(), llvm::emitVSNPrintf(), and llvm::emitVSPrintf().

◆ getSizeTTy()

static IntegerType * getSizeTTy	(	IRBuilderBase &	B,
		const TargetLibraryInfo *	TLI
	)

static

Definition at line 1477 of file BuildLibCalls.cpp.

References B, and llvm::TargetLibraryInfo::getSizeTSize().

Referenced by llvm::emitBCmp(), llvm::emitCalloc(), llvm::emitFWrite(), llvm::emitMalloc(), llvm::emitMemCCpy(), llvm::emitMemChr(), llvm::emitMemCmp(), llvm::emitMemCpyChk(), llvm::emitMemPCpy(), llvm::emitMemRChr(), llvm::emitSNPrintf(), llvm::emitStpNCpy(), llvm::emitStrLCat(), llvm::emitStrLCpy(), llvm::emitStrLen(), llvm::emitStrNCat(), llvm::emitStrNCmp(), llvm::emitStrNCpy(), and llvm::emitVSNPrintf().

◆ setAlignedAllocParam()

static bool setAlignedAllocParam	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 234 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocatedPointerParam()

static bool setAllocatedPointerParam	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 241 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocFamily()

static bool setAllocFamily	(	Function &	F,
		StringRef	Family
	)

static

Definition at line 257 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocKind()

static bool setAllocKind	(	Function &	F,
		AllocFnKind	K
	)

static

Definition at line 264 of file BuildLibCalls.cpp.

References F, and llvm::Attribute::get().

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocSize()

static bool setAllocSize	(	Function &	F,
		unsigned	ElemSizeArg,
		std::optional< unsigned >	NumElemsArg
	)

static

Definition at line 248 of file BuildLibCalls.cpp.

References F, and llvm::Attribute::getWithAllocSizeArgs().

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setArgExtAttr()

static void setArgExtAttr	(	Function &	F,
		unsigned	ArgNo,
		const TargetLibraryInfo &	TLI,
		bool	Signed = `true`
	)

static

Definition at line 1285 of file BuildLibCalls.cpp.

References F, llvm::Attribute::None, and Signed.

Referenced by llvm::getOrInsertLibFunc().

◆ setArgNoUndef()

static bool setArgNoUndef	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 189 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setArgsNoUndef()

static bool setArgsNoUndef ( Function & F )

static

Definition at line 177 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs(), and setRetAndArgsNoUndef().

◆ setDoesNotAccessMemory()

static bool setDoesNotAccessMemory ( Function & F )

static

Definition at line 55 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotAlias()

static bool setDoesNotAlias	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 143 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotCapture()

static bool setDoesNotCapture	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 135 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotFreeMemory()

static bool setDoesNotFreeMemory ( Function & F )

static

Definition at line 219 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotThrow()

static bool setDoesNotThrow ( Function & F )

static

Definition at line 119 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setIsCold()

static bool setIsCold ( Function & F )

static

Definition at line 63 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setNonLazyBind()

static bool setNonLazyBind ( Function & F )

static

Definition at line 212 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs(), and lowerObjCCall().

◆ setNoReturn()

static bool setNoReturn ( Function & F )

static

Definition at line 71 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyAccessesArgMemory()

static bool setOnlyAccessesArgMemory ( Function & F )

static

Definition at line 103 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyAccessesInaccessibleMemOrArgMem()

static bool setOnlyAccessesInaccessibleMemOrArgMem ( Function & F )

static

Definition at line 111 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyAccessesInaccessibleMemory()

static bool setOnlyAccessesInaccessibleMemory ( Function & F )

static

Definition at line 79 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyReadsMemory() [1/2]

static bool setOnlyReadsMemory ( Function & F )

static

Definition at line 87 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyReadsMemory() [2/2]

static bool setOnlyReadsMemory	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 151 of file BuildLibCalls.cpp.

References F.

◆ setOnlyWritesMemory() [1/2]

static bool setOnlyWritesMemory ( Function & F )

static

Definition at line 95 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyWritesMemory() [2/2]

static bool setOnlyWritesMemory	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 159 of file BuildLibCalls.cpp.

References F.

◆ setRetAndArgsNoUndef()

static bool setRetAndArgsNoUndef ( Function & F )

static

Definition at line 197 of file BuildLibCalls.cpp.

References F, setArgsNoUndef(), and setRetNoUndef().

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setRetDoesNotAlias()

static bool setRetDoesNotAlias ( Function & F )

static

Definition at line 127 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setRetExtAttr()

static void setRetExtAttr	(	Function &	F,
		const TargetLibraryInfo &	TLI,
		bool	Signed = `true`
	)

static

Definition at line 1292 of file BuildLibCalls.cpp.

References F, llvm::Attribute::None, and Signed.

Referenced by llvm::getOrInsertLibFunc().

◆ setRetNoUndef()

static bool setRetNoUndef ( Function & F )

static

Definition at line 167 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs(), and setRetAndArgsNoUndef().

◆ setReturnedArg()

static bool setReturnedArg	(	Function &	F,
		unsigned	ArgNo
	)

static

Definition at line 204 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setWillReturn()

static bool setWillReturn ( Function & F )

static

Definition at line 226 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ STATISTIC() [1/16]

STATISTIC	(	NumArgMemOnly	,
		"Number of functions inferred as argmemonly"
	)

◆ STATISTIC() [2/16]

STATISTIC	(	NumCold	,
		"Number of functions inferred as cold"
	)

◆ STATISTIC() [3/16]

STATISTIC	(	NumInaccessibleMemOnly	,
		"Number of functions inferred as inaccessiblememonly"
	)

◆ STATISTIC() [4/16]

STATISTIC	(	NumInaccessibleMemOrArgMemOnly	,
		"Number of functions inferred as inaccessiblemem_or_argmemonly"
	)

◆ STATISTIC() [5/16]

STATISTIC	(	NumNoAlias	,
		"Number of function returns inferred as noalias"
	)

◆ STATISTIC() [6/16]

STATISTIC	(	NumNoCapture	,
		"Number of arguments inferred as nocapture"
	)

◆ STATISTIC() [7/16]

STATISTIC	(	NumNoReturn	,
		"Number of functions inferred as no return"
	)

◆ STATISTIC() [8/16]

STATISTIC	(	NumNoUndef	,
		"Number of function returns inferred as noundef returns"
	)

◆ STATISTIC() [9/16]

STATISTIC	(	NumNoUnwind	,
		"Number of functions inferred as nounwind"
	)

◆ STATISTIC() [10/16]

STATISTIC	(	NumReadNone	,
		"Number of functions inferred as readnone"
	)

◆ STATISTIC() [11/16]

STATISTIC	(	NumReadOnly	,
		"Number of functions inferred as readonly"
	)

◆ STATISTIC() [12/16]

STATISTIC	(	NumReadOnlyArg	,
		"Number of arguments inferred as readonly"
	)

◆ STATISTIC() [13/16]

STATISTIC	(	NumReturnedArg	,
		"Number of arguments inferred as returned"
	)

◆ STATISTIC() [14/16]

STATISTIC	(	NumWillReturn	,
		"Number of functions inferred as willreturn"
	)

◆ STATISTIC() [15/16]

STATISTIC	(	NumWriteOnly	,
		"Number of functions inferred as writeonly"
	)

◆ STATISTIC() [16/16]

STATISTIC	(	NumWriteOnlyArg	,
		"Number of arguments inferred as writeonly"
	)

Macros

Functions

Macro Definition Documentation

◆ DEBUG_TYPE

Function Documentation

◆ appendTypeSuffix()

◆ emitBinaryFloatFnCallHelper()

◆ emitLibCall()

◆ emitUnaryFloatFnCallHelper()

◆ getIntTy()

◆ getSizeTTy()

◆ setAlignedAllocParam()

◆ setAllocatedPointerParam()

◆ setAllocFamily()

◆ setAllocKind()

◆ setAllocSize()

◆ setArgExtAttr()

◆ setArgNoUndef()

◆ setArgsNoUndef()

◆ setDoesNotAccessMemory()

◆ setDoesNotAlias()

◆ setDoesNotCapture()

◆ setDoesNotFreeMemory()

◆ setDoesNotThrow()

◆ setIsCold()

◆ setNonLazyBind()

◆ setNoReturn()

◆ setOnlyAccessesArgMemory()

◆ setOnlyAccessesInaccessibleMemOrArgMem()

◆ setOnlyAccessesInaccessibleMemory()

◆ setOnlyReadsMemory() [1/2]

◆ setOnlyReadsMemory() [2/2]

◆ setOnlyWritesMemory() [1/2]

◆ setOnlyWritesMemory() [2/2]

◆ setRetAndArgsNoUndef()

◆ setRetDoesNotAlias()

◆ setRetExtAttr()

◆ setRetNoUndef()

◆ setReturnedArg()

◆ setWillReturn()

◆ STATISTIC() [1/16]

◆ STATISTIC() [2/16]

◆ STATISTIC() [3/16]

◆ STATISTIC() [4/16]

◆ STATISTIC() [5/16]

◆ STATISTIC() [6/16]

◆ STATISTIC() [7/16]

◆ STATISTIC() [8/16]

◆ STATISTIC() [9/16]

◆ STATISTIC() [10/16]

◆ STATISTIC() [11/16]

◆ STATISTIC() [12/16]

◆ STATISTIC() [13/16]

◆ STATISTIC() [14/16]

◆ STATISTIC() [15/16]

◆ STATISTIC() [16/16]