SPIRVPrepareFunctions.cpp File Reference

#include "SPIRV.h"
#include "SPIRVSubtarget.h"
#include "SPIRVTargetMachine.h"
#include "SPIRVUtils.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/IntrinsicsSPIRV.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "llvm/Transforms/Utils/LowerMemIntrinsics.h"
#include <charconv>
#include <regex>

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Functions
void	llvm::initializeSPIRVPrepareFunctionsPass (PassRegistry &)
	INITIALIZE_PASS (SPIRVPrepareFunctions, "prepare-functions", "SPIRV prepare functions", false, false) std
static Function *	getOrCreateFunction (Module *M, Type *RetTy, ArrayRef< Type * > ArgTypes, StringRef Name)
static bool	lowerIntrinsicToFunction (IntrinsicInst *Intrinsic)
static std::string	getAnnotation (Value *AnnoVal, Value *OptAnnoVal)
static SmallVector< Metadata * >	parseAnnotation (Value *I, const std::string &Anno, LLVMContext &Ctx, Type *Int32Ty)
static void	lowerPtrAnnotation (IntrinsicInst *II)
static void	lowerFunnelShifts (IntrinsicInst *FSHIntrinsic)
static void	buildUMulWithOverflowFunc (Function *UMulFunc)
static void	lowerExpectAssume (IntrinsicInst *II)
static bool	toSpvOverloadedIntrinsic (IntrinsicInst *II, Intrinsic::ID NewID, ArrayRef< unsigned > OpNos)
static void	lowerUMulWithOverflow (IntrinsicInst *UMulIntrinsic)

Function Documentation

buildUMulWithOverflowFunc()

static void buildUMulWithOverflowFunc ( Function *  UMulFunc )

static

Definition at line 345 of file SPIRVPrepareFunctions.cpp.

References llvm::BasicBlock::Create(), llvm::IRBuilderBase::CreateICmpNE(), llvm::IRBuilderBase::CreateInsertValue(), llvm::IRBuilderBase::CreateNUWMul(), llvm::IRBuilderBase::CreateRet(), llvm::IRBuilderBase::CreateUDiv(), llvm::Function::empty(), llvm::PoisonValue::get(), llvm::Function::getArg(), llvm::Module::getContext(), llvm::GlobalValue::getParent(), llvm::Function::getReturnType(), and Mul.

Referenced by lowerUMulWithOverflow().

getAnnotation()

static std::string getAnnotation ( Value *  AnnoVal, Value *  OptAnnoVal  )

static

Definition at line 158 of file SPIRVPrepareFunctions.cpp.

References llvm::CallingConv::C, llvm::getConstantStringInfo(), I, llvm::Ref, and Struct.

Referenced by lowerPtrAnnotation().

getOrCreateFunction()

static Function * getOrCreateFunction ( Module *  M, Type *  RetTy, ArrayRef< Type * >  ArgTypes, StringRef  Name  )

static

Definition at line 80 of file SPIRVPrepareFunctions.cpp.

References llvm::Function::Create(), llvm::GlobalValue::ExternalLinkage, F, Name, RetTy, llvm::Function::setCallingConv(), llvm::GlobalValue::setDSOLocal(), and llvm::CallingConv::SPIR_FUNC.

Referenced by lowerFunnelShifts(), and lowerUMulWithOverflow().

INITIALIZE_PASS()

INITIALIZE_PASS	(	SPIRVPrepareFunctions	,
		"prepare-functions"	,
		"SPIRV prepare functions"	,
		false	,
		false
	)

Definition at line 68 of file SPIRVPrepareFunctions.cpp.

References assert(), llvm::Value::getName(), II, and llvm::StringRef::str().

lowerExpectAssume()

static void lowerExpectAssume ( IntrinsicInst *  II )

static

Definition at line 369 of file SPIRVPrepareFunctions.cpp.

References F, llvm::Intrinsic::getDeclaration(), II, and llvm_unreachable.

lowerFunnelShifts()

static void lowerFunnelShifts ( IntrinsicInst *  FSHIntrinsic )

static

Definition at line 284 of file SPIRVPrepareFunctions.cpp.

References llvm::BitWidth, llvm::BasicBlock::Create(), llvm::IRBuilderBase::CreateLShr(), llvm::IRBuilderBase::CreateOr(), llvm::IRBuilderBase::CreateRet(), llvm::IRBuilderBase::CreateShl(), llvm::IRBuilderBase::CreateSub(), llvm::IRBuilderBase::CreateURem(), llvm::IRBuilderBase::CreateVectorSplat(), llvm::Function::empty(), llvm::Function::getArg(), llvm::VectorType::getElementType(), llvm::CallBase::getFunctionType(), llvm::IRBuilderBase::getInt(), llvm::Type::getIntegerBitWidth(), llvm::IntrinsicInst::getIntrinsicID(), llvm::Instruction::getModule(), llvm::FixedVectorType::getNumElements(), getOrCreateFunction(), llvm::Function::getReturnType(), and llvm::CallBase::setCalledFunction().

lowerIntrinsicToFunction()

static bool lowerIntrinsicToFunction ( IntrinsicInst *  Intrinsic )

static

Definition at line 94 of file SPIRVPrepareFunctions.cpp.

References assert(), llvm::BasicBlock::Create(), llvm::IRBuilderBase::CreateIntrinsic(), llvm::IRBuilderBase::CreateMemSet(), llvm::IRBuilderBase::CreateRet(), llvm::IRBuilderBase::CreateRetVoid(), llvm::expandMemSetAsLoop(), F, llvm::IntrinsicLowering::LowerIntrinsicCall(), and llvm::Value::setName().

lowerPtrAnnotation()

static void lowerPtrAnnotation ( IntrinsicInst *  II )

static

Definition at line 248 of file SPIRVPrepareFunctions.cpp.

References llvm::IRBuilderBase::CreateIntrinsic(), llvm::ConstantAsMetadata::get(), llvm::MDNode::get(), llvm::MetadataAsValue::get(), llvm::MDString::get(), getAnnotation(), llvm::Type::getInt32Ty(), llvm::Value::getType(), II, parseAnnotation(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::IRBuilderBase::SetInsertPoint(), and llvm::SmallVectorBase< Size_T >::size().

lowerUMulWithOverflow()

static void lowerUMulWithOverflow ( IntrinsicInst *  UMulIntrinsic )

static

Definition at line 410 of file SPIRVPrepareFunctions.cpp.

References buildUMulWithOverflowFunc(), llvm::CallBase::getFunctionType(), llvm::Instruction::getModule(), getOrCreateFunction(), and llvm::CallBase::setCalledFunction().

parseAnnotation()

static SmallVector< Metadata * > parseAnnotation ( Value *  I, const std::string &  Anno, LLVMContext &  Ctx, Type *  Int32Ty  )

static

Definition at line 193 of file SPIRVPrepareFunctions.cpp.

References llvm::ConstantAsMetadata::get(), llvm::MDNode::get(), llvm::MDString::get(), llvm::Match, llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by lowerPtrAnnotation().

toSpvOverloadedIntrinsic()

static bool toSpvOverloadedIntrinsic ( IntrinsicInst *  II, Intrinsic::ID  NewID, ArrayRef< unsigned >  OpNos  )

static

Definition at line 395 of file SPIRVPrepareFunctions.cpp.

References llvm::ArrayRef< T >::empty(), F, llvm::Intrinsic::getDeclaration(), II, and llvm::SmallVectorTemplateBase< T, bool >::push_back().