LLVM: lib/Transforms/Utils/SimplifyLibCalls.cpp File Reference (original) (raw)

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Functions
static bool ignoreCallingConv (LibFunc Func)
static bool isOnlyUsedInEqualityComparison (Value *V, Value *With)
Return true if it is only used in equality comparisons with With.
static bool callHasFloatingPointArgument (const CallInst *CI)
static bool callHasFP128Argument (const CallInst *CI)
static Value * convertStrToInt (CallInst *CI, StringRef &Str, Value *EndPtr, uint64_t Base, bool AsSigned, IRBuilderBase &B)
static bool isOnlyUsedInComparisonWithZero (Value *V)
static bool canTransformToMemCmp (CallInst *CI, Value *Str, uint64_t Len, const DataLayout &DL)
static void annotateDereferenceableBytes (CallInst *CI, ArrayRef< unsigned > ArgNos, uint64_t DereferenceableBytes)
static void annotateNonNullNoUndefBasedOnAccess (CallInst *CI, ArrayRef< unsigned > ArgNos)
static void annotateNonNullAndDereferenceable (CallInst *CI, ArrayRef< unsigned > ArgNos, Value *Size, const DataLayout &DL)
static Value * copyFlags (const CallInst &Old, Value *New)
static Value * mergeAttributesAndFlags (CallInst *NewCI, const CallInst &Old)
static StringRef substr (StringRef Str, uint64_t Len)
static Value * memChrToCharCompare (CallInst *CI, Value *NBytes, IRBuilderBase &B, const DataLayout &DL)
static Value * optimizeMemCmpVarSize (CallInst *CI, Value *LHS, Value *RHS, Value *Size, bool StrNCmp, IRBuilderBase &B, const DataLayout &DL)
static Value * optimizeMemCmpConstantSize (CallInst *CI, Value *LHS, Value *RHS, uint64_t Len, IRBuilderBase &B, const DataLayout &DL)
static Value * replaceUnaryCall (CallInst *CI, IRBuilderBase &B, Intrinsic::ID IID)
static Value * valueHasFloatPrecision (Value *Val)
Return a variant of Val with float type.
static Value * optimizeDoubleFP (CallInst *CI, IRBuilderBase &B, bool isBinary, const TargetLibraryInfo *TLI, bool isPrecise=false)
Shrink double -> float functions.
static Value * optimizeUnaryDoubleFP (CallInst *CI, IRBuilderBase &B, const TargetLibraryInfo *TLI, bool isPrecise=false)
Shrink double -> float for unary functions.
static Value * optimizeBinaryDoubleFP (CallInst *CI, IRBuilderBase &B, const TargetLibraryInfo *TLI, bool isPrecise=false)
Shrink double -> float for binary functions.
static Value * getIntToFPVal (Value *I2F, IRBuilderBase &B, unsigned DstWidth)
static Value * getSqrtCall (Value *V, AttributeList Attrs, bool NoErrno, Module *M, IRBuilderBase &B, const TargetLibraryInfo *TLI)
static Value * createPowWithIntegerExponent (Value *Base, Value *Expo, Module *M, IRBuilderBase &B)
static bool isTrigLibCall (CallInst *CI)
static bool insertSinCosCall (IRBuilderBase &B, Function *OrigCallee, Value *Arg, bool UseFloat, Value *&Sin, Value *&Cos, Value *&SinCos, const TargetLibraryInfo *TLI)
static Value * optimizeSymmetricCall (CallInst *CI, bool IsEven, IRBuilderBase &B)
static bool isReportingError (Function *Callee, CallInst *CI, int StreamArg)
static Value * optimizeNaN (CallInst *CI)
Constant folding nan/nanf/nanl.
Variables
static cl::opt< bool > EnableUnsafeFPShrink ("enable-double-float-shrink", cl::Hidden, cl::init(false), cl::desc("Enable unsafe double to float " "shrinking for math lib calls"))
static cl::opt< bool > OptimizeHotColdNew ("optimize-hot-cold-new", cl::Hidden, cl::init(false), cl::desc("Enable hot/cold operator new library calls"))
static cl::opt< bool > OptimizeExistingHotColdNew ("optimize-existing-hot-cold-new", cl::Hidden, cl::init(false), cl::desc("Enable optimization of existing hot/cold operator new library calls"))
static cl::opt< bool > OptimizeNoBuiltinHotColdNew ("optimize-nobuiltin-hot-cold-new-new", cl::Hidden, cl::init(false), cl::desc("Enable transformation of nobuiltin operator new library calls"))
static cl::opt< unsigned, false, HotColdHintParser > ColdNewHintValue ("cold-new-hint-value", cl::Hidden, cl::init(1), cl::desc("Value to pass to hot/cold operator new for cold allocation"))
static cl::opt< unsigned, false, HotColdHintParser > NotColdNewHintValue ("notcold-new-hint-value", cl::Hidden, cl::init(128), cl::desc("Value to pass to hot/cold operator new for " "notcold (warm) allocation"))
static cl::opt< unsigned, false, HotColdHintParser > HotNewHintValue ("hot-new-hint-value", cl::Hidden, cl::init(254), cl::desc("Value to pass to hot/cold operator new for hot allocation"))
static cl::opt< unsigned, false, HotColdHintParser > AmbiguousNewHintValue ("ambiguous-new-hint-value", cl::Hidden, cl::init(222), cl::desc("Value to pass to hot/cold operator new for ambiguous allocation"))

◆ annotateDereferenceableBytes()

Definition at line 276 of file SimplifyLibCalls.cpp.

References llvm::CallBase::addParamAttr(), F, llvm::CallBase::getArgOperand(), llvm::CallBase::getCaller(), llvm::Value::getContext(), llvm::CallBase::getParamDereferenceableBytes(), llvm::CallBase::getParamDereferenceableOrNullBytes(), llvm::Type::getPointerAddressSpace(), llvm::Value::getType(), llvm::Attribute::getWithDereferenceableBytes(), llvm::NullPointerIsDefined(), llvm::CallBase::paramHasAttr(), and llvm::CallBase::removeParamAttr().

Referenced by annotateNonNullAndDereferenceable(), and annotateNonNullNoUndefBasedOnAccess().

◆ annotateNonNullAndDereferenceable()

Definition at line 323 of file SimplifyLibCalls.cpp.

References annotateDereferenceableBytes(), annotateNonNullNoUndefBasedOnAccess(), DL, llvm::dyn_cast(), llvm::isKnownNonZero(), llvm::PatternMatch::m_ConstantInt(), llvm::PatternMatch::m_Select(), llvm::PatternMatch::m_Value(), llvm::PatternMatch::match(), Size, X, and Y.

◆ annotateNonNullNoUndefBasedOnAccess()

◆ callHasFloatingPointArgument()

◆ callHasFP128Argument()

◆ canTransformToMemCmp()

◆ convertStrToInt()

Definition at line 148 of file SimplifyLibCalls.cpp.

References B(), llvm::sampleprof::Base, llvm::CallBase::getArgOperand(), llvm::Type::getPrimitiveSizeInBits(), llvm::Value::getType(), llvm::isAlpha(), llvm::isDigit(), llvm::isSpace(), llvm::maxIntN(), llvm::maxUIntN(), llvm::Offset, llvm::SaturatingMultiplyAdd(), and llvm::toUpper().

◆ copyFlags()

◆ createPowWithIntegerExponent()

◆ getIntToFPVal()

◆ getSqrtCall()

◆ ignoreCallingConv()

bool ignoreCallingConv ( LibFunc Func) static

◆ insertSinCosCall()

Definition at line 2967 of file SimplifyLibCalls.cpp.

References assert(), B(), llvm::BasicBlock::begin(), llvm::dyn_cast(), llvm::FixedVectorType::get(), llvm::StructType::get(), llvm::Function::getAttributes(), llvm::TargetLibraryInfo::getLibFunc(), llvm::getOrInsertLibFunc(), llvm::GlobalValue::getParent(), llvm::Module::getTargetTriple(), llvm::Value::getType(), llvm::isLibFuncEmittable(), llvm::Type::isStructTy(), T, llvm::Triple::x86, and llvm::Triple::x86_64.

◆ isOnlyUsedInComparisonWithZero()

bool isOnlyUsedInComparisonWithZero ( Value * V) static

◆ isOnlyUsedInEqualityComparison()

◆ isReportingError()

◆ isTrigLibCall()

◆ memChrToCharCompare()

◆ mergeAttributesAndFlags()

Definition at line 352 of file SimplifyLibCalls.cpp.

References llvm::CallBase::arg_size(), copyFlags(), llvm::CallBase::getArgOperand(), llvm::Value::getContext(), llvm::CallBase::getParamAttributes(), llvm::CallBase::getRetAttributes(), llvm::Value::getType(), I, llvm::CallBase::removeParamAttrs(), llvm::CallBase::removeRetAttrs(), and llvm::CallBase::setAttributes().

◆ optimizeBinaryDoubleFP()

◆ optimizeDoubleFP()

Shrink double -> float functions.

Definition at line 1964 of file SimplifyLibCalls.cpp.

References B(), llvm::dyn_cast(), llvm::emitBinaryFloatFnCall(), llvm::emitUnaryFloatFnCall(), llvm::StringRef::ends_with(), llvm::CallBase::getArgOperand(), llvm::Function::getAttributes(), llvm::CallBase::getCalledFunction(), llvm::Instruction::getFastMathFlags(), llvm::Instruction::getFunction(), llvm::Function::getIntrinsicID(), llvm::Value::getName(), llvm::Value::getType(), isBinary(), llvm::Type::isDoubleTy(), llvm::Type::isFloatTy(), llvm::Function::isIntrinsic(), llvm::StringRef::size(), llvm::StringRef::starts_with(), llvm::Value::users(), and valueHasFloatPrecision().

Referenced by optimizeBinaryDoubleFP(), and optimizeUnaryDoubleFP().

◆ optimizeMemCmpConstantSize()

Definition at line 1542 of file SimplifyLibCalls.cpp.

References B(), llvm::ConstantFoldLoadFromConstPtr(), DL, llvm::dyn_cast(), llvm::IntegerType::get(), llvm::Value::getContext(), llvm::getKnownAlignment(), llvm::Constant::getNullValue(), llvm::Value::getType(), llvm::isOnlyUsedInZeroEqualityComparison(), LHS, and RHS.

◆ optimizeMemCmpVarSize()

Definition at line 1500 of file SimplifyLibCalls.cpp.

References B(), DL, llvm::getConstantStringInfo(), llvm::Constant::getNullValue(), llvm::ConstantInt::getSigned(), llvm::Value::getType(), llvm::CmpInst::ICMP_ULE, LHS, RHS, Size, and llvm::StringRef::size().

◆ optimizeNaN()

◆ optimizeSymmetricCall()

Definition at line 3023 of file SimplifyLibCalls.cpp.

References B(), Call, copyFlags(), llvm::CallBase::getArgOperand(), llvm::CallBase::getCalledFunction(), llvm::PatternMatch::m_CopySign(), llvm::PatternMatch::m_FAbs(), llvm::PatternMatch::m_FNeg(), llvm::MIPatternMatch::m_OneUse(), llvm::PatternMatch::m_Value(), llvm::PatternMatch::match(), and X.

◆ optimizeUnaryDoubleFP()

◆ replaceUnaryCall()

◆ substr()

Definition at line 366 of file SimplifyLibCalls.cpp.

Referenced by llvm::StringRef::consume_back(), llvm::StringRef::consume_back_insensitive(), llvm::StringRef::consume_front(), llvm::StringRef::consume_front_insensitive(), llvm::StringRef::drop_back(), llvm::StringRef::drop_front(), llvm::StringRef::drop_until(), llvm::StringRef::drop_while(), llvm::DWARFDataExtractor::DWARFDataExtractor(), llvm::DWARFDataExtractorBase< Relocator >::DWARFDataExtractorBase(), llvm::object::MachOObjectFile::getSectionContents(), llvm::PGOCtxProfileReader::PGOCtxProfileReader(), llvm::DXContainerYAML::PSVInfo::PSVInfo(), llvm::StringRef::rsplit(), llvm::DXContainerYAML::SignatureElement::SignatureElement(), llvm::StringRef::split(), llvm::StringRef::take_until(), and llvm::StringRef::take_while().

◆ valueHasFloatPrecision()

Value * valueHasFloatPrecision ( Value * Val) static

◆ AmbiguousNewHintValue

cl::opt< unsigned, false, HotColdHintParser > AmbiguousNewHintValue("ambiguous-new-hint-value", cl::Hidden, cl::init(222), cl::desc( "Value to pass to hot/cold operator new for ambiguous allocation")) ( "ambiguous-new-hint-value" , cl::Hidden , cl::init(222) , cl::desc( "Value to pass to hot/cold operator new for ambiguous allocation") ) static

◆ ColdNewHintValue

cl::opt< unsigned, false, HotColdHintParser > ColdNewHintValue("cold-new-hint-value", cl::Hidden, cl::init(1), cl::desc("Value to pass to hot/cold operator new for cold allocation")) ( "cold-new-hint-value" , cl::Hidden , cl::init(1) , cl::desc("Value to pass to hot/cold operator new for cold allocation") ) static

◆ EnableUnsafeFPShrink

cl::opt< bool > EnableUnsafeFPShrink("enable-double-float-shrink", cl::Hidden, cl::init(false), cl::desc("Enable unsafe double to float " "shrinking for math lib calls")) ( "enable-double-float-shrink" , cl::Hidden , cl::init(false) , cl::desc("Enable unsafe double to float " "shrinking for math lib calls") ) static

◆ HotNewHintValue

cl::opt< unsigned, false, HotColdHintParser > HotNewHintValue("hot-new-hint-value", cl::Hidden, cl::init(254), cl::desc("Value to pass to hot/cold operator new for hot allocation")) ( "hot-new-hint-value" , cl::Hidden , cl::init(254) , cl::desc("Value to pass to hot/cold operator new for hot allocation") ) static

◆ NotColdNewHintValue

cl::opt< unsigned, false, HotColdHintParser > NotColdNewHintValue("notcold-new-hint-value", cl::Hidden, cl::init(128), cl::desc("Value to pass to hot/cold operator new for " "notcold (warm) allocation")) ( "notcold-new-hint-value" , cl::Hidden , cl::init(128) , cl::desc("Value to pass to hot/cold operator new for " "notcold (warm) allocation") ) static

◆ OptimizeExistingHotColdNew

cl::opt< bool > OptimizeExistingHotColdNew("optimize-existing-hot-cold-new", cl::Hidden, cl::init(false), cl::desc( "Enable optimization of existing hot/cold operator new library calls")) ( "optimize-existing-hot-cold-new" , cl::Hidden , cl::init(false) , cl::desc( "Enable optimization of existing hot/cold operator new library calls") ) static

◆ OptimizeHotColdNew

cl::opt< bool > OptimizeHotColdNew("optimize-hot-cold-new", cl::Hidden, cl::init(false), cl::desc("Enable hot/cold operator new library calls")) ( "optimize-hot-cold-new" , cl::Hidden , cl::init(false) , cl::desc("Enable hot/cold operator new library calls") ) static

◆ OptimizeNoBuiltinHotColdNew

cl::opt< bool > OptimizeNoBuiltinHotColdNew("optimize-nobuiltin-hot-cold-new-new", cl::Hidden, cl::init(false), cl::desc("Enable transformation of nobuiltin operator new library calls")) ( "optimize-nobuiltin-hot-cold-new-new" , cl::Hidden , cl::init(false) , cl::desc("Enable transformation of nobuiltin operator new library calls") ) static