IntrinsicLowering.cpp File Reference

#include "llvm/CodeGen/IntrinsicLowering.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"

Include dependency graph for IntrinsicLowering.cpp:

Go to the source code of this file.

Functions
template<class ArgIt >
static void	EnsureFunctionExists (Module &M, const char *Name, ArgIt ArgBegin, ArgIt ArgEnd, Type *RetTy)
static void	EnsureFPIntrinsicsExist (Module &M, Function *Fn, const char *FName, const char *DName, const char *LDName)
template<class ArgIt >
static CallInst *	ReplaceCallWith (const char *NewFn, CallInst *CI, ArgIt ArgBegin, ArgIt ArgEnd, Type *RetTy)
static Value *	LowerBSWAP (LLVMContext &Context, Value *V, Instruction *IP)
static Value *	LowerCTPOP (LLVMContext &Context, Value *V, Instruction *IP)
static Value *	LowerCTLZ (LLVMContext &Context, Value *V, Instruction *IP)
static void	ReplaceFPIntrinsicWithCall (CallInst *CI, const char *Fname, const char *Dname, const char *LDname)

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Function Documentation

static void EnsureFPIntrinsicsExist	(	Module &	M,
		Function *	Fn,
		const char *	FName,
		const char *	DName,
		const char *	LDName
	)		[static]

Definition at line 38 of file IntrinsicLowering.cpp.

References llvm::Function::arg_begin(), llvm::Function::arg_end(), llvm::Type::DoubleTyID, EnsureFunctionExists(), llvm::Type::FloatTyID, llvm::Type::FP128TyID, llvm::Module::getContext(), llvm::Type::getDoubleTy(), llvm::Type::getFloatTy(), llvm::Type::PPC_FP128TyID, and llvm::Type::X86_FP80TyID.

Referenced by llvm::IntrinsicLowering::AddPrototypes().

template<class ArgIt >

static void EnsureFunctionExists	(	Module &	M,
		const char *	Name,
		ArgIt	ArgBegin,
		ArgIt	ArgEnd,
		Type *	RetTy
	)		[static]

Definition at line 28 of file IntrinsicLowering.cpp.

References llvm::FunctionType::get(), llvm::Module::getOrInsertFunction(), and I.

Referenced by llvm::IntrinsicLowering::AddPrototypes(), and EnsureFPIntrinsicsExist().

static Value* LowerBSWAP	(	LLVMContext &	Context,
		Value *	V,
		Instruction *	IP
	)		[static]

LowerBSWAP - Emit the code to lower bswap of V before the specified instruction IP.

Definition at line 166 of file IntrinsicLowering.cpp.

References llvm::ConstantInt::get(), llvm::Type::getInt32Ty(), llvm::Type::getInt64Ty(), llvm::Instruction::getParent(), llvm::Type::getPrimitiveSizeInBits(), llvm::Value::getType(), llvm::Type::isIntegerTy(), and llvm_unreachable.

Referenced by llvm::IntrinsicLowering::LowerIntrinsicCall().

static Value* LowerCTLZ	(	LLVMContext &	Context,
		Value *	V,
		Instruction *	IP
	)		[static]

LowerCTLZ - Emit the code to lower ctlz of V before the specified instruction IP.

Definition at line 302 of file IntrinsicLowering.cpp.

References llvm::ConstantInt::get(), llvm::Instruction::getParent(), llvm::Type::getPrimitiveSizeInBits(), llvm::Value::getType(), and LowerCTPOP().

Referenced by llvm::IntrinsicLowering::LowerIntrinsicCall().

static Value* LowerCTPOP	(	LLVMContext &	Context,
		Value *	V,
		Instruction *	IP
	)		[static]

LowerCTPOP - Emit the code to lower ctpop of V before the specified instruction IP.

Definition at line 262 of file IntrinsicLowering.cpp.

References llvm::ConstantInt::get(), llvm::Instruction::getParent(), llvm::Type::getPrimitiveSizeInBits(), llvm::Value::getType(), and llvm::Type::isIntegerTy().

Referenced by LowerCTLZ(), and llvm::IntrinsicLowering::LowerIntrinsicCall().

template<class ArgIt >

static CallInst* ReplaceCallWith	(	const char *	NewFn,
		CallInst *	CI,
		ArgIt	ArgBegin,
		ArgIt	ArgEnd,
		Type *	RetTy
	)		[static]

ReplaceCallWith - This function is used when we want to lower an intrinsic call to a call of an external function. This handles hard cases such as when there was already a prototype for the external function, and if that prototype doesn't match the arguments we expect to pass in.

Definition at line 65 of file IntrinsicLowering.cpp.

References llvm::FunctionType::get(), llvm::Value::getName(), llvm::Module::getOrInsertFunction(), llvm::Instruction::getParent(), llvm::BasicBlock::getParent(), llvm::GlobalValue::getParent(), I, llvm::Value::replaceAllUsesWith(), llvm::Value::setName(), and llvm::Value::use_empty().

Referenced by llvm::IntrinsicLowering::LowerIntrinsicCall(), and ReplaceFPIntrinsicWithCall().

static void ReplaceFPIntrinsicWithCall	(	CallInst *	CI,
		const char *	Fname,
		const char *	Dname,
		const char *	LDname
	)		[static]

Definition at line 317 of file IntrinsicLowering.cpp.

References llvm::CallSiteBase< FunTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_begin(), llvm::CallSiteBase< FunTy, ValTy, UserTy, InstrTy, CallTy, InvokeTy, IterTy >::arg_end(), llvm::Type::DoubleTyID, llvm::Type::FloatTyID, llvm::Type::FP128TyID, llvm::CallInst::getArgOperand(), llvm::Value::getContext(), llvm::Type::getDoubleTy(), llvm::Type::getFloatTy(), llvm::Value::getType(), llvm::Type::getTypeID(), llvm_unreachable, llvm::Type::PPC_FP128TyID, ReplaceCallWith(), and llvm::Type::X86_FP80TyID.

Referenced by llvm::IntrinsicLowering::LowerIntrinsicCall().