LLVM  17.0.0git
Macros | Functions
BuildLibCalls.cpp File Reference
#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/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/TypeSize.h"
#include <optional>
Include dependency graph for BuildLibCalls.cpp:

Go to the source code of this file.

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")
 
static bool setDoesNotAccessMemory (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 void markRegisterParameterAttributes (Function *F)
 
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'. More...
 
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 31 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 1682 of file BuildLibCalls.cpp.

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 1744 of file BuildLibCalls.cpp.

References assert(), Attrs, B, Callee, F, llvm::FunctionCallee::getCallee(), llvm::getOrInsertLibFunc(), llvm::Value::getType(), llvm::inferNonMandatoryLibFuncAttrs(), M, llvm::CallBase::setAttributes(), llvm::CallBase::setCallingConv(), and llvm::Value::stripPointerCasts().

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

Definition at line 1438 of file BuildLibCalls.cpp.

References B, Callee, F, llvm::FunctionType::get(), llvm::FunctionCallee::getCallee(), llvm::TargetLibraryInfo::getName(), llvm::getOrInsertLibFunc(), llvm::inferNonMandatoryLibFuncAttrs(), llvm::isLibFuncEmittable(), M, Operands, llvm::CallBase::setCallingConv(), and llvm::Value::stripPointerCasts().

Referenced by llvm::emitBCmp(), llvm::emitMemCCpy(), llvm::emitMemChr(), llvm::emitMemCmp(), llvm::emitMemPCpy(), llvm::emitMemRChr(), llvm::emitSNPrintf(), llvm::emitSPrintf(), llvm::emitStpCpy(), llvm::emitStpNCpy(), llvm::emitStrCat(), llvm::emitStrChr(), llvm::emitStrCpy(), llvm::emitStrDup(), llvm::emitStrLCat(), llvm::emitStrLCpy(), llvm::emitStrLen(), llvm::emitStrNCat(), llvm::emitStrNCmp(), llvm::emitStrNCpy(), llvm::emitVSNPrintf(), and llvm::emitVSPrintf().

◆ emitUnaryFloatFnCallHelper()

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

Definition at line 1696 of file BuildLibCalls.cpp.

References assert(), Attrs, B, Callee, F, llvm::FunctionCallee::getCallee(), llvm::getOrInsertLibFunc(), M, llvm::CallBase::setAttributes(), llvm::CallBase::setCallingConv(), and llvm::Value::stripPointerCasts().

Referenced by llvm::emitUnaryFloatFnCall().

◆ getIntTy()

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

Definition at line 1429 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 1433 of file BuildLibCalls.cpp.

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

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().

◆ markRegisterParameterAttributes()

static void markRegisterParameterAttributes ( Function *  F)
static

Definition at line 1251 of file BuildLibCalls.cpp.

References assert(), llvm::CallingConv::C, CC, DL, F, M, N, and llvm::CallingConv::X86_StdCall.

Referenced by llvm::getOrInsertLibFunc().

◆ setAlignedAllocParam()

static bool setAlignedAllocParam ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 215 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocatedPointerParam()

static bool setAllocatedPointerParam ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 222 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocFamily()

static bool setAllocFamily ( Function &  F,
StringRef  Family 
)
static

Definition at line 238 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setAllocKind()

static bool setAllocKind ( Function &  F,
AllocFnKind  K 
)
static

Definition at line 245 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 229 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 1236 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 170 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setArgsNoUndef()

static bool setArgsNoUndef ( Function &  F)
static

Definition at line 158 of file BuildLibCalls.cpp.

References F.

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

◆ setDoesNotAccessMemory()

static bool setDoesNotAccessMemory ( Function &  F)
static

Definition at line 52 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotAlias()

static bool setDoesNotAlias ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 124 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotCapture()

static bool setDoesNotCapture ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 116 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotFreeMemory()

static bool setDoesNotFreeMemory ( Function &  F)
static

Definition at line 200 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setDoesNotThrow()

static bool setDoesNotThrow ( Function &  F)
static

Definition at line 100 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setNonLazyBind()

static bool setNonLazyBind ( Function &  F)
static

Definition at line 193 of file BuildLibCalls.cpp.

References F.

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

◆ setOnlyAccessesArgMemory()

static bool setOnlyAccessesArgMemory ( Function &  F)
static

Definition at line 84 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyAccessesInaccessibleMemOrArgMem()

static bool setOnlyAccessesInaccessibleMemOrArgMem ( Function &  F)
static

Definition at line 92 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyAccessesInaccessibleMemory()

static bool setOnlyAccessesInaccessibleMemory ( Function &  F)
static

Definition at line 60 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyReadsMemory() [1/2]

static bool setOnlyReadsMemory ( Function &  F)
static

Definition at line 68 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyReadsMemory() [2/2]

static bool setOnlyReadsMemory ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 132 of file BuildLibCalls.cpp.

References F.

◆ setOnlyWritesMemory() [1/2]

static bool setOnlyWritesMemory ( Function &  F)
static

Definition at line 76 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setOnlyWritesMemory() [2/2]

static bool setOnlyWritesMemory ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 140 of file BuildLibCalls.cpp.

References F.

◆ setRetAndArgsNoUndef()

static bool setRetAndArgsNoUndef ( Function &  F)
static

Definition at line 178 of file BuildLibCalls.cpp.

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

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setRetDoesNotAlias()

static bool setRetDoesNotAlias ( Function &  F)
static

Definition at line 108 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 1243 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 148 of file BuildLibCalls.cpp.

References F.

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

◆ setReturnedArg()

static bool setReturnedArg ( Function &  F,
unsigned  ArgNo 
)
static

Definition at line 185 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ setWillReturn()

static bool setWillReturn ( Function &  F)
static

Definition at line 207 of file BuildLibCalls.cpp.

References F.

Referenced by llvm::inferNonMandatoryLibFuncAttrs().

◆ STATISTIC() [1/14]

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

◆ STATISTIC() [2/14]

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

◆ STATISTIC() [3/14]

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

◆ STATISTIC() [4/14]

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

◆ STATISTIC() [5/14]

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

◆ STATISTIC() [6/14]

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

◆ STATISTIC() [7/14]

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

◆ STATISTIC() [8/14]

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

◆ STATISTIC() [9/14]

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

◆ STATISTIC() [10/14]

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

◆ STATISTIC() [11/14]

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

◆ STATISTIC() [12/14]

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

◆ STATISTIC() [13/14]

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

◆ STATISTIC() [14/14]

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