InjectTLIMappings.cpp File Reference

#include "llvm/Transforms/Utils/InjectTLIMappings.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/DemandedBits.h"
#include "llvm/Analysis/GlobalsModRef.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Analysis/VectorUtils.h"
#include "llvm/IR/InstIterator.h"
#include "llvm/IR/VFABIDemangler.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "inject-tli-mappings"

Functions
	STATISTIC (NumCallInjected, "Number of calls in which the mappings have been injected.")
	STATISTIC (NumVFDeclAdded, "Number of function declarations that have been added.")
	STATISTIC (NumCompUsedAdded, "Number of `@llvm.compiler.used` operands that have been added.")
static void	addVariantDeclaration (CallInst &CI, const ElementCount &VF, const VecDesc *VD)
	A helper function that adds the vector variant declaration for vectorizing the CallInst CI with a vectorization factor of VF lanes.
static void	addMappingsFromTLI (const TargetLibraryInfo &TLI, CallInst &CI)
static bool	runImpl (const TargetLibraryInfo &TLI, Function &F)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "inject-tli-mappings"

Definition at line 26 of file InjectTLIMappings.cpp.

Function Documentation

addMappingsFromTLI()

void addMappingsFromTLI ( const TargetLibraryInfo & TLI, CallInst & CI )

static

Definition at line 74 of file InjectTLIMappings.cpp.

References addVariantDeclaration(), llvm::SetVector< T, Vector, Set, N >::count(), llvm::StringRef::empty(), llvm::from_range, llvm::CallBase::getCalledFunction(), llvm::ElementCount::getFixed(), llvm::Function::getFunction(), llvm::Instruction::getModule(), llvm::Value::getName(), llvm::ElementCount::getScalable(), llvm::VecDesc::getVectorFnName(), llvm::VecDesc::getVectorFunctionABIVariantString(), llvm::TargetLibraryInfo::getVectorMappingInfo(), llvm::VFABI::getVectorVariantNames(), llvm::TargetLibraryInfo::getWidestVF(), llvm::TargetLibraryInfo::isFunctionVectorizable(), llvm::details::FixedOrScalableQuantity< ElementCount, unsigned >::isKnownLE(), llvm::CallBase::isNoBuiltin(), llvm::Predicated, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::VFABI::setVectorVariantNames().

Referenced by runImpl().

addVariantDeclaration()

void addVariantDeclaration ( CallInst & CI, const ElementCount & VF, const VecDesc * VD )

static

A helper function that adds the vector variant declaration for vectorizing the CallInst CI with a vectorization factor of VF lanes.

For each mapping, TLI provides a VABI prefix, which contains all information required to create vector function declaration.

Definition at line 40 of file InjectTLIMappings.cpp.

References llvm::appendToCompilerUsed(), assert(), llvm::Function::copyAttributesFrom(), llvm::Function::Create(), llvm::VFABI::createFunctionType(), llvm::dbgs(), DEBUG_TYPE, llvm::GlobalValue::ExternalLinkage, llvm::CallBase::getCalledFunction(), llvm::VecDesc::getCallingConv(), llvm::CallBase::getFunctionType(), llvm::Instruction::getModule(), llvm::VecDesc::getVectorFnName(), llvm::VecDesc::getVectorFunctionABIVariantString(), Info, LLVM_DEBUG, llvm::Function::setCallingConv(), llvm::Function::size(), and llvm::VFABI::tryDemangleForVFABI().

Referenced by addMappingsFromTLI().

runImpl()

bool runImpl ( const TargetLibraryInfo & TLI, Function & F )

static

Definition at line 125 of file InjectTLIMappings.cpp.

References addMappingsFromTLI(), llvm::dyn_cast(), F, I, and instructions.

STATISTIC() [1/3]

STATISTIC	(	NumCallInjected	,
		"Number of calls in which the mappings have been injected."	)

STATISTIC() [2/3]

STATISTIC	(	NumCompUsedAdded	,
		"Number of `@llvm.compiler.used` operands that have been added."	)

STATISTIC() [3/3]

STATISTIC	(	NumVFDeclAdded	,
		"Number of function declarations that have been added."	)