LLVM 20.0.0git
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Implementation of the target library information. More...
#include "llvm/Analysis/TargetLibraryInfo.h"
Public Types | |
enum | VectorLibrary { NoLibrary , Accelerate , DarwinLibSystemM , LIBMVEC_X86 , MASSV , SVML , SLEEFGNUABI , ArmPL , AMDLIBM } |
List of known vector-functions libraries. More... | |
Public Member Functions | |
TargetLibraryInfoImpl () | |
TargetLibraryInfoImpl (const Triple &T) | |
TargetLibraryInfoImpl (const TargetLibraryInfoImpl &TLI) | |
TargetLibraryInfoImpl (TargetLibraryInfoImpl &&TLI) | |
TargetLibraryInfoImpl & | operator= (const TargetLibraryInfoImpl &TLI) |
TargetLibraryInfoImpl & | operator= (TargetLibraryInfoImpl &&TLI) |
bool | getLibFunc (StringRef funcName, LibFunc &F) const |
Searches for a particular function name. | |
bool | getLibFunc (const Function &FDecl, LibFunc &F) const |
Searches for a particular function name, also checking that its type is valid for the library function matching that name. | |
bool | getLibFunc (unsigned int Opcode, Type *Ty, LibFunc &F) const |
Searches for a function name using an Instruction Opcode . | |
void | setUnavailable (LibFunc F) |
Forces a function to be marked as unavailable. | |
void | setAvailable (LibFunc F) |
Forces a function to be marked as available. | |
void | setAvailableWithName (LibFunc F, StringRef Name) |
Forces a function to be marked as available and provide an alternate name that must be used. | |
void | disableAllFunctions () |
Disables all builtins. | |
void | addVectorizableFunctions (ArrayRef< VecDesc > Fns) |
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction. | |
void | addVectorizableFunctionsFromVecLib (enum VectorLibrary VecLib, const llvm::Triple &TargetTriple) |
Calls addVectorizableFunctions with a known preset of functions for the given vector library. | |
bool | isFunctionVectorizable (StringRef F, const ElementCount &VF) const |
Return true if the function F has a vector equivalent with vectorization factor VF. | |
bool | isFunctionVectorizable (StringRef F) const |
Return true if the function F has a vector equivalent with any vectorization factor. | |
StringRef | getVectorizedFunction (StringRef F, const ElementCount &VF, bool Masked) const |
Return the name of the equivalent of F, vectorized with factor VF. | |
const VecDesc * | getVectorMappingInfo (StringRef F, const ElementCount &VF, bool Masked) const |
Return a pointer to a VecDesc object holding all info for scalar to vector mappings in TLI for the equivalent of F, vectorized with factor VF. | |
void | setShouldExtI32Param (bool Val) |
Set to true iff i32 parameters to library functions should have signext or zeroext attributes if they correspond to C-level int or unsigned int, respectively. | |
void | setShouldExtI32Return (bool Val) |
Set to true iff i32 results from library functions should have signext or zeroext attributes if they correspond to C-level int or unsigned int, respectively. | |
void | setShouldSignExtI32Param (bool Val) |
Set to true iff i32 parameters to library functions should have signext attribute if they correspond to C-level int or unsigned int. | |
void | setShouldSignExtI32Return (bool Val) |
Set to true iff i32 results from library functions should have signext attribute if they correspond to C-level int or unsigned int. | |
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. | |
void | setIntSize (unsigned Bits) |
Initialize the C-level size of an integer. | |
void | getWidestVF (StringRef ScalarF, ElementCount &FixedVF, ElementCount &Scalable) const |
Returns the largest vectorization factor used in the list of vector functions. | |
Static Public Member Functions | |
static bool | isCallingConvCCompatible (CallBase *CI) |
Returns true if call site / callee has cdecl-compatible calling conventions. | |
static bool | isCallingConvCCompatible (Function *Callee) |
Friends | |
class | TargetLibraryInfo |
Implementation of the target library information.
This class constructs tables that hold the target library information and make it available. However, it is somewhat expensive to compute and only depends on the triple. So users typically interact with the TargetLibraryInfo
wrapper below.
Definition at line 83 of file TargetLibraryInfo.h.
List of known vector-functions libraries.
The vector-functions library defines, which functions are vectorizable and with which factor. The library can be specified by either frontend, or a commandline option, and then used by addVectorizableFunctionsFromVecLib for filling up the tables of vectorizable functions.
Enumerator | |
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NoLibrary | |
Accelerate | |
DarwinLibSystemM | |
LIBMVEC_X86 | |
MASSV | |
SVML | |
SLEEFGNUABI | |
ArmPL | |
AMDLIBM |
Definition at line 124 of file TargetLibraryInfo.h.
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | ) |
Definition at line 907 of file TargetLibraryInfo.cpp.
References initializeBase().
Definition at line 913 of file TargetLibraryInfo.cpp.
References initialize().
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | const TargetLibraryInfoImpl & | TLI | ) |
Definition at line 920 of file TargetLibraryInfo.cpp.
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | TargetLibraryInfoImpl && | TLI | ) |
Definition at line 931 of file TargetLibraryInfo.cpp.
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction.
Definition at line 1252 of file TargetLibraryInfo.cpp.
References llvm::append_range(), compareByScalarFnName(), compareByVectorFnName(), and llvm::sort().
Referenced by addVectorizableFunctionsFromVecLib().
void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib | ( | enum VectorLibrary | VecLib, |
const llvm::Triple & | TargetTriple | ||
) |
Calls addVectorizableFunctions with a known preset of functions for the given vector library.
Definition at line 1328 of file TargetLibraryInfo.cpp.
References llvm::Triple::aarch64, llvm::Triple::aarch64_be, Accelerate, addVectorizableFunctions(), AMDLIBM, ArmPL, DarwinLibSystemM, llvm::Triple::getArch(), LIBMVEC_X86, MASSV, NoLibrary, SLEEFGNUABI, SVML, VecFuncs_Accelerate, VecFuncs_AMDLIBM, VecFuncs_ArmPL, VecFuncs_DarwinLibSystemM, VecFuncs_LIBMVEC_X86, VecFuncs_MASSV, VecFuncs_SLEEFGNUABI_VF2, VecFuncs_SLEEFGNUABI_VF4, VecFuncs_SLEEFGNUABI_VFScalable, and VecFuncs_SVML.
Referenced by llvm::driver::createTLII(), and initializeLibCalls().
void TargetLibraryInfoImpl::disableAllFunctions | ( | ) |
Disables all builtins.
This can be used for options like -fno-builtin.
Definition at line 1236 of file TargetLibraryInfo.cpp.
Referenced by initializeLibCalls().
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Get size of a C-level int or unsigned int, in bits.
Definition at line 256 of file TargetLibraryInfo.h.
Referenced by llvm::TargetLibraryInfo::getIntSize().
Searches for a particular function name, also checking that its type is valid for the library function matching that name.
If it is one of the known library functions, return true and set F to the corresponding value.
FDecl is assumed to have a parent Module when using this function.
Definition at line 1205 of file TargetLibraryInfo.cpp.
References assert(), F, llvm::Function::getFunctionType(), getLibFunc(), llvm::Value::getName(), llvm::GlobalValue::getParent(), llvm::Function::isIntrinsic(), and llvm::NotLibFunc.
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 988 of file TargetLibraryInfo.cpp.
References buildIndexMap(), llvm::StringRef::empty(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), F, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and sanitizeFunctionName().
Referenced by getLibFunc(), and llvm::TargetLibraryInfo::getLibFunc().
Searches for a function name using an Instruction Opcode
.
Currently, only the frem instruction is supported.
Definition at line 1226 of file TargetLibraryInfo.cpp.
References F, llvm::Type::isDoubleTy(), and llvm::Type::isFloatTy().
Returns the size of the size_t type in bits.
Definition at line 1434 of file TargetLibraryInfo.cpp.
Referenced by llvm::TargetLibraryInfo::getSizeTSize().
StringRef TargetLibraryInfoImpl::getVectorizedFunction | ( | StringRef | F, |
const ElementCount & | VF, | ||
bool | Masked | ||
) | const |
Return the name of the equivalent of F, vectorized with factor VF.
If no such mapping exists, return the empty string.
Definition at line 1394 of file TargetLibraryInfo.cpp.
References F, llvm::VecDesc::getVectorFnName(), getVectorMappingInfo(), and llvm::Masked.
Referenced by llvm::TargetLibraryInfo::getVectorizedFunction(), and isFunctionVectorizable().
const VecDesc * TargetLibraryInfoImpl::getVectorMappingInfo | ( | StringRef | F, |
const ElementCount & | VF, | ||
bool | Masked | ||
) | const |
Return a pointer to a VecDesc object holding all info for scalar to vector mappings in TLI for the equivalent of F, vectorized with factor VF.
If no such mapping exists, return nullpointer.
Definition at line 1404 of file TargetLibraryInfo.cpp.
References compareWithScalarFnName(), F, I, llvm::lower_bound(), llvm::Masked, and sanitizeFunctionName().
Referenced by getVectorizedFunction(), and llvm::TargetLibraryInfo::getVectorMappingInfo().
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 1427 of file TargetLibraryInfo.cpp.
Referenced by llvm::TargetLibraryInfo::getWCharSize().
void TargetLibraryInfoImpl::getWidestVF | ( | StringRef | ScalarF, |
ElementCount & | FixedVF, | ||
ElementCount & | Scalable | ||
) | const |
Returns the largest vectorization factor used in the list of vector functions.
Definition at line 1479 of file TargetLibraryInfo.cpp.
References compareWithScalarFnName(), llvm::StringRef::empty(), llvm::ElementCount::getFixed(), llvm::ElementCount::getScalable(), I, llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownGT(), llvm::lower_bound(), and sanitizeFunctionName().
Referenced by llvm::TargetLibraryInfo::getWidestVF().
Returns true if call site / callee has cdecl-compatible calling conventions.
Definition at line 152 of file TargetLibraryInfo.cpp.
References llvm::CallBase::getCallingConv(), llvm::CallBase::getFunctionType(), llvm::Instruction::getModule(), and llvm::Module::getTargetTriple().
Referenced by llvm::FortifiedLibCallSimplifier::optimizeCall(), and llvm::LibCallSimplifier::optimizeCall().
Definition at line 158 of file TargetLibraryInfo.cpp.
References F.
Return true if the function F has a vector equivalent with any vectorization factor.
Definition at line 1384 of file TargetLibraryInfo.cpp.
References compareWithScalarFnName(), llvm::StringRef::empty(), I, llvm::lower_bound(), and sanitizeFunctionName().
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inline |
Return true if the function F has a vector equivalent with vectorization factor VF.
Definition at line 202 of file TargetLibraryInfo.h.
References llvm::StringRef::empty(), F, and getVectorizedFunction().
Referenced by llvm::TargetLibraryInfo::isFunctionVectorizable().
TargetLibraryInfoImpl & TargetLibraryInfoImpl::operator= | ( | const TargetLibraryInfoImpl & | TLI | ) |
Definition at line 944 of file TargetLibraryInfo.cpp.
TargetLibraryInfoImpl & TargetLibraryInfoImpl::operator= | ( | TargetLibraryInfoImpl && | TLI | ) |
Definition at line 955 of file TargetLibraryInfo.cpp.
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Forces a function to be marked as available.
Definition at line 170 of file TargetLibraryInfo.h.
References F.
Referenced by initializeLibCalls().
Forces a function to be marked as available and provide an alternate name that must be used.
Definition at line 176 of file TargetLibraryInfo.h.
References assert(), F, and Name.
Referenced by initializeLibCalls().
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Initialize the C-level size of an integer.
Definition at line 261 of file TargetLibraryInfo.h.
Referenced by initializeBase().
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Set to true iff i32 parameters to library functions should have signext or zeroext attributes if they correspond to C-level int or unsigned int, respectively.
Definition at line 225 of file TargetLibraryInfo.h.
Referenced by initializeBase().
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Set to true iff i32 results from library functions should have signext or zeroext attributes if they correspond to C-level int or unsigned int, respectively.
Definition at line 232 of file TargetLibraryInfo.h.
Referenced by initializeBase().
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Set to true iff i32 parameters to library functions should have signext attribute if they correspond to C-level int or unsigned int.
Definition at line 238 of file TargetLibraryInfo.h.
Referenced by initializeBase().
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Set to true iff i32 results from library functions should have signext attribute if they correspond to C-level int or unsigned int.
Definition at line 244 of file TargetLibraryInfo.h.
Referenced by initializeBase().
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Forces a function to be marked as unavailable.
Definition at line 165 of file TargetLibraryInfo.h.
References F, and Unavailable.
Referenced by initializeLibCalls().
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friend |
Definition at line 84 of file TargetLibraryInfo.h.