LLVM
15.0.0git
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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 } |
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. More... | |
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. More... | |
void | setUnavailable (LibFunc F) |
Forces a function to be marked as unavailable. More... | |
void | setAvailable (LibFunc F) |
Forces a function to be marked as available. More... | |
void | setAvailableWithName (LibFunc F, StringRef Name) |
Forces a function to be marked as available and provide an alternate name that must be used. More... | |
void | disableAllFunctions () |
Disables all builtins. More... | |
void | addVectorizableFunctions (ArrayRef< VecDesc > Fns) |
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction. More... | |
void | addVectorizableFunctionsFromVecLib (enum VectorLibrary VecLib) |
Calls addVectorizableFunctions with a known preset of functions for the given vector library. More... | |
bool | isFunctionVectorizable (StringRef F, const ElementCount &VF) const |
Return true if the function F has a vector equivalent with vectorization factor VF. More... | |
bool | isFunctionVectorizable (StringRef F) const |
Return true if the function F has a vector equivalent with any vectorization factor. More... | |
StringRef | getVectorizedFunction (StringRef F, const ElementCount &VF) const |
Return the name of the equivalent of F, vectorized with factor VF. More... | |
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. More... | |
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. More... | |
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. 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... | |
unsigned | getIntSize () const |
Get size of a C-level int or unsigned int, in bits. More... | |
void | setIntSize (unsigned Bits) |
Initialize the C-level size of an integer. More... | |
void | getWidestVF (StringRef ScalarF, ElementCount &FixedVF, ElementCount &Scalable) const |
Returns the largest vectorization factor used in the list of vector functions. More... | |
Static Public Member Functions | |
static bool | isCallingConvCCompatible (CallBase *CI) |
Returns true if call site / callee has cdecl-compatible calling conventions. More... | |
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 49 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 |
Definition at line 90 of file TargetLibraryInfo.h.
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | ) |
Definition at line 832 of file TargetLibraryInfo.cpp.
References initialize().
Definition at line 839 of file TargetLibraryInfo.cpp.
References initialize(), and T.
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | const TargetLibraryInfoImpl & | TLI | ) |
Definition at line 846 of file TargetLibraryInfo.cpp.
References memcpy().
TargetLibraryInfoImpl::TargetLibraryInfoImpl | ( | TargetLibraryInfoImpl && | TLI | ) |
Definition at line 856 of file TargetLibraryInfo.cpp.
References llvm::sys::path::begin(), llvm::sys::path::end(), and move.
Add a set of scalar -> vector mappings, queryable via getVectorizedFunction and getScalarizedFunction.
Definition at line 1836 of file TargetLibraryInfo.cpp.
References llvm::append_range(), compareByScalarFnName(), compareByVectorFnName(), and llvm::sort().
Referenced by addVectorizableFunctionsFromVecLib().
void TargetLibraryInfoImpl::addVectorizableFunctionsFromVecLib | ( | enum VectorLibrary | VecLib | ) |
Calls addVectorizableFunctions with a known preset of functions for the given vector library.
Definition at line 1844 of file TargetLibraryInfo.cpp.
References Accelerate, addVectorizableFunctions(), DarwinLibSystemM, LIBMVEC_X86, MASSV, NoLibrary, and SVML.
Referenced by initialize().
void TargetLibraryInfoImpl::disableAllFunctions | ( | ) |
Disables all builtins.
This can be used for options like -fno-builtin.
Definition at line 1820 of file TargetLibraryInfo.cpp.
Referenced by initialize().
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inline |
Get size of a C-level int or unsigned int, in bits.
Definition at line 197 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 1806 of file TargetLibraryInfo.cpp.
References assert(), F, llvm::Function::getFunctionType(), getLibFunc(), llvm::Value::getName(), llvm::GlobalValue::getParent(), llvm::Function::isIntrinsic(), and M.
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 900 of file TargetLibraryInfo.cpp.
References llvm::sys::path::begin(), llvm::StringRef::empty(), and sanitizeFunctionName().
Referenced by getLibFunc(), and llvm::TargetLibraryInfo::getLibFunc().
StringRef TargetLibraryInfoImpl::getVectorizedFunction | ( | StringRef | F, |
const ElementCount & | VF | ||
) | 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 1903 of file TargetLibraryInfo.cpp.
References compareWithScalarFnName(), F, I, llvm::lower_bound(), and sanitizeFunctionName().
Referenced by llvm::TargetLibraryInfo::getVectorizedFunction(), and isFunctionVectorizable().
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 1926 of file TargetLibraryInfo.cpp.
References M.
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 1958 of file TargetLibraryInfo.cpp.
References compareWithScalarFnName(), llvm::StringRef::empty(), llvm::LinearPolySize< ElementCount >::getFixed(), llvm::LinearPolySize< ElementCount >::getScalable(), I, llvm::LinearPolySize< ElementCount >::isKnownGT(), llvm::lower_bound(), and sanitizeFunctionName().
Referenced by llvm::TargetLibraryInfo::getWidestVF().
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Returns true if call site / callee has cdecl-compatible calling conventions.
Definition at line 101 of file TargetLibraryInfo.cpp.
References llvm::CallBase::getCallingConv(), llvm::CallBase::getFunctionType(), llvm::Instruction::getModule(), llvm::Module::getTargetTriple(), and isCallingConvCCompatible().
Referenced by llvm::FortifiedLibCallSimplifier::optimizeCall(), and llvm::LibCallSimplifier::optimizeCall().
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static |
Definition at line 107 of file TargetLibraryInfo.cpp.
References F, and isCallingConvCCompatible().
bool TargetLibraryInfoImpl::isFunctionVectorizable | ( | StringRef | F | ) | const |
Return true if the function F has a vector equivalent with any vectorization factor.
Definition at line 1892 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 160 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 868 of file TargetLibraryInfo.cpp.
References memcpy().
TargetLibraryInfoImpl & TargetLibraryInfoImpl::operator= | ( | TargetLibraryInfoImpl && | TLI | ) |
Definition at line 878 of file TargetLibraryInfo.cpp.
References llvm::sys::path::begin(), llvm::sys::path::end(), and move.
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inline |
Forces a function to be marked as available.
Definition at line 129 of file TargetLibraryInfo.h.
References F.
Referenced by initialize().
Forces a function to be marked as available and provide an alternate name that must be used.
Definition at line 135 of file TargetLibraryInfo.h.
Referenced by initialize().
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inline |
Initialize the C-level size of an integer.
Definition at line 202 of file TargetLibraryInfo.h.
References llvm::tgtok::Bits.
Referenced by initialize().
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inline |
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 175 of file TargetLibraryInfo.h.
Referenced by initialize().
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inline |
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 182 of file TargetLibraryInfo.h.
Referenced by initialize().
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inline |
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 188 of file TargetLibraryInfo.h.
Referenced by initialize().
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inline |
Forces a function to be marked as unavailable.
Definition at line 124 of file TargetLibraryInfo.h.
References F, and Unavailable.
Referenced by initialize().
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friend |
Definition at line 50 of file TargetLibraryInfo.h.