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llvm-mirror/include/llvm/Support/IRBuilder.h
Eric Christopher 4c3e39e220 Add a couple more helper functions to deal with 
creating global constant strings and pointers
to global constant strings.

llvm-svn: 53051
2008-07-02 22:57:59 +00:00

580 lines
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//===---- llvm/Support/IRBuilder.h - Builder for LLVM Instrs ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the IRBuilder class, which is used as a convenient way
// to create LLVM instructions with a consistent and simplified interface.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_IRBUILDER_H
#define LLVM_SUPPORT_IRBUILDER_H
#include "llvm/BasicBlock.h"
#include "llvm/Instructions.h"
#include "llvm/Constants.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Function.h"
namespace llvm {
/// IRBuilder - This provides a uniform API for creating instructions and
/// inserting them into a basic block: either at the end of a BasicBlock, or
/// at a specific iterator location in a block.
///
/// Note that the builder does not expose the full generality of LLVM
/// instructions. For example, it cannot be used to create instructions with
/// arbitrary names (specifically, names with nul characters in them) - It only
/// supports nul-terminated C strings. For fully generic names, use
/// I->setName(). For access to extra instruction properties, use the mutators
/// (e.g. setVolatile) on the instructions after they have been created.
class IRBuilder {
BasicBlock *BB;
BasicBlock::iterator InsertPt;
public:
IRBuilder() { ClearInsertionPoint(); }
explicit IRBuilder(BasicBlock *TheBB) { SetInsertPoint(TheBB); }
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP) {
SetInsertPoint(TheBB, IP);
}
//===--------------------------------------------------------------------===//
// Builder configuration methods
//===--------------------------------------------------------------------===//
/// ClearInsertionPoint - Clear the insertion point: created instructions will
/// not be inserted into a block.
void ClearInsertionPoint() {
BB = 0;
}
BasicBlock *GetInsertBlock() const { return BB; }
/// SetInsertPoint - This specifies that created instructions should be
/// appended to the end of the specified block.
void SetInsertPoint(BasicBlock *TheBB) {
BB = TheBB;
InsertPt = BB->end();
}
/// SetInsertPoint - This specifies that created instructions should be
/// inserted at the specified point.
void SetInsertPoint(BasicBlock *TheBB, BasicBlock::iterator IP) {
BB = TheBB;
InsertPt = IP;
}
/// Insert - Insert and return the specified instruction.
template<typename InstTy>
InstTy *Insert(InstTy *I, const char *Name = "") const {
InsertHelper(I, Name);
return I;
}
/// InsertHelper - Insert the specified instruction at the specified insertion
/// point. This is split out of Insert so that it isn't duplicated for every
/// template instantiation.
void InsertHelper(Instruction *I, const char *Name) const {
if (BB) BB->getInstList().insert(InsertPt, I);
if (Name[0])
I->setName(Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Terminators
//===--------------------------------------------------------------------===//
/// CreateRetVoid - Create a 'ret void' instruction.
ReturnInst *CreateRetVoid() {
return Insert(ReturnInst::Create());
}
/// @verbatim
/// CreateRet - Create a 'ret <val>' instruction.
/// @endverbatim
ReturnInst *CreateRet(Value *V) {
return Insert(ReturnInst::Create(V));
}
ReturnInst *CreateRet(Value * const* retVals, unsigned N) {
return Insert(ReturnInst::Create(retVals, N));
}
GetResultInst *CreateGetResult(Value *V, unsigned Index,
const char *Name = "") {
return Insert(new GetResultInst(V, Index), Name);
}
/// CreateBr - Create an unconditional 'br label X' instruction.
BranchInst *CreateBr(BasicBlock *Dest) {
return Insert(BranchInst::Create(Dest));
}
/// CreateCondBr - Create a conditional 'br Cond, TrueDest, FalseDest'
/// instruction.
BranchInst *CreateCondBr(Value *Cond, BasicBlock *True, BasicBlock *False) {
return Insert(BranchInst::Create(True, False, Cond));
}
/// CreateSwitch - Create a switch instruction with the specified value,
/// default dest, and with a hint for the number of cases that will be added
/// (for efficient allocation).
SwitchInst *CreateSwitch(Value *V, BasicBlock *Dest, unsigned NumCases = 10) {
return Insert(SwitchInst::Create(V, Dest, NumCases));
}
/// CreateInvoke - Create an invoke instruction.
template<typename InputIterator>
InvokeInst *CreateInvoke(Value *Callee, BasicBlock *NormalDest,
BasicBlock *UnwindDest, InputIterator ArgBegin,
InputIterator ArgEnd, const char *Name = "") {
return Insert(InvokeInst::Create(Callee, NormalDest, UnwindDest,
ArgBegin, ArgEnd), Name);
}
UnwindInst *CreateUnwind() {
return Insert(new UnwindInst());
}
UnreachableInst *CreateUnreachable() {
return Insert(new UnreachableInst());
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Binary Operators
//===--------------------------------------------------------------------===//
Value *CreateAdd(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getAdd(LC, RC);
return Insert(BinaryOperator::CreateAdd(LHS, RHS), Name);
}
Value *CreateSub(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getSub(LC, RC);
return Insert(BinaryOperator::CreateSub(LHS, RHS), Name);
}
Value *CreateMul(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getMul(LC, RC);
return Insert(BinaryOperator::CreateMul(LHS, RHS), Name);
}
Value *CreateUDiv(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getUDiv(LC, RC);
return Insert(BinaryOperator::CreateUDiv(LHS, RHS), Name);
}
Value *CreateSDiv(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getSDiv(LC, RC);
return Insert(BinaryOperator::CreateSDiv(LHS, RHS), Name);
}
Value *CreateFDiv(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getFDiv(LC, RC);
return Insert(BinaryOperator::CreateFDiv(LHS, RHS), Name);
}
Value *CreateURem(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getURem(LC, RC);
return Insert(BinaryOperator::CreateURem(LHS, RHS), Name);
}
Value *CreateSRem(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getSRem(LC, RC);
return Insert(BinaryOperator::CreateSRem(LHS, RHS), Name);
}
Value *CreateFRem(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getFRem(LC, RC);
return Insert(BinaryOperator::CreateFRem(LHS, RHS), Name);
}
Value *CreateShl(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getShl(LC, RC);
return Insert(BinaryOperator::CreateShl(LHS, RHS), Name);
}
Value *CreateLShr(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getLShr(LC, RC);
return Insert(BinaryOperator::CreateLShr(LHS, RHS), Name);
}
Value *CreateAShr(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getAShr(LC, RC);
return Insert(BinaryOperator::CreateAShr(LHS, RHS), Name);
}
Value *CreateAnd(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getAnd(LC, RC);
return Insert(BinaryOperator::CreateAnd(LHS, RHS), Name);
}
Value *CreateOr(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getOr(LC, RC);
return Insert(BinaryOperator::CreateOr(LHS, RHS), Name);
}
Value *CreateXor(Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getXor(LC, RC);
return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
}
BinaryOperator *CreateBinOp(Instruction::BinaryOps Opc,
Value *LHS, Value *RHS, const char *Name = "") {
return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
}
BinaryOperator *CreateNeg(Value *V, const char *Name = "") {
return Insert(BinaryOperator::CreateNeg(V), Name);
}
BinaryOperator *CreateNot(Value *V, const char *Name = "") {
return Insert(BinaryOperator::CreateNot(V), Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Memory Instructions
//===--------------------------------------------------------------------===//
MallocInst *CreateMalloc(const Type *Ty, Value *ArraySize = 0,
const char *Name = "") {
return Insert(new MallocInst(Ty, ArraySize), Name);
}
AllocaInst *CreateAlloca(const Type *Ty, Value *ArraySize = 0,
const char *Name = "") {
return Insert(new AllocaInst(Ty, ArraySize), Name);
}
FreeInst *CreateFree(Value *Ptr) {
return Insert(new FreeInst(Ptr));
}
LoadInst *CreateLoad(Value *Ptr, const char *Name = 0) {
return Insert(new LoadInst(Ptr, Name));
}
LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const char *Name = 0) {
return Insert(new LoadInst(Ptr, Name, isVolatile));
}
StoreInst *CreateStore(Value *Val, Value *Ptr, bool isVolatile = false) {
return Insert(new StoreInst(Val, Ptr, isVolatile));
}
template<typename InputIterator>
Value *CreateGEP(Value *Ptr, InputIterator IdxBegin,
InputIterator IdxEnd, const char *Name = "") {
if (Constant *PC = dyn_cast<Constant>(Ptr)) {
// Every index must be constant.
InputIterator i;
for (i = IdxBegin; i < IdxEnd; ++i) {
if (!dyn_cast<Constant>(*i))
break;
}
if (i == IdxEnd)
return ConstantExpr::getGetElementPtr(PC, &IdxBegin[0],
IdxEnd - IdxBegin);
}
return(Insert(GetElementPtrInst::Create(Ptr, IdxBegin, IdxEnd), Name));
}
Value *CreateGEP(Value *Ptr, Value *Idx, const char *Name = "") {
if (Constant *PC = dyn_cast<Constant>(Ptr))
if (Constant *IC = dyn_cast<Constant>(Idx))
return ConstantExpr::getGetElementPtr(PC, &IC, 1);
return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
}
Value *CreateStructGEP(Value *Ptr, unsigned Idx, const char *Name = "") {
llvm::Value *Idxs[] = {
ConstantInt::get(llvm::Type::Int32Ty, 0),
ConstantInt::get(llvm::Type::Int32Ty, Idx)
};
if (Constant *PC = dyn_cast<Constant>(Ptr))
return ConstantExpr::getGetElementPtr(PC, Idxs, 2);
return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateGlobalString(const char *Str = "", const char *Name = "") {
Constant *StrConstant = ConstantArray::get(Str, true);
GlobalVariable *gv = new llvm::GlobalVariable(StrConstant->getType(),
true,
GlobalValue::InternalLinkage,
StrConstant,
"",
BB->getParent()->getParent(),
false);
gv->setName(Name);
return gv;
}
Value *CreateGlobalStringPtr(const char *Str = "", const char *Name = "") {
Value *gv = CreateGlobalString(Str, Name);
Value *zero = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0);
Value *Args[] = { zero, zero };
return CreateGEP(gv, Args, Args+2, Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Cast/Conversion Operators
//===--------------------------------------------------------------------===//
Value *CreateTrunc(Value *V, const Type *DestTy, const char *Name = "") {
return CreateCast(Instruction::Trunc, V, DestTy, Name);
}
Value *CreateZExt(Value *V, const Type *DestTy, const char *Name = "") {
return CreateCast(Instruction::ZExt, V, DestTy, Name);
}
Value *CreateSExt(Value *V, const Type *DestTy, const char *Name = "") {
return CreateCast(Instruction::SExt, V, DestTy, Name);
}
Value *CreateFPToUI(Value *V, const Type *DestTy, const char *Name = ""){
return CreateCast(Instruction::FPToUI, V, DestTy, Name);
}
Value *CreateFPToSI(Value *V, const Type *DestTy, const char *Name = ""){
return CreateCast(Instruction::FPToSI, V, DestTy, Name);
}
Value *CreateUIToFP(Value *V, const Type *DestTy, const char *Name = ""){
return CreateCast(Instruction::UIToFP, V, DestTy, Name);
}
Value *CreateSIToFP(Value *V, const Type *DestTy, const char *Name = ""){
return CreateCast(Instruction::SIToFP, V, DestTy, Name);
}
Value *CreateFPTrunc(Value *V, const Type *DestTy,
const char *Name = "") {
return CreateCast(Instruction::FPTrunc, V, DestTy, Name);
}
Value *CreateFPExt(Value *V, const Type *DestTy, const char *Name = "") {
return CreateCast(Instruction::FPExt, V, DestTy, Name);
}
Value *CreatePtrToInt(Value *V, const Type *DestTy,
const char *Name = "") {
return CreateCast(Instruction::PtrToInt, V, DestTy, Name);
}
Value *CreateIntToPtr(Value *V, const Type *DestTy,
const char *Name = "") {
return CreateCast(Instruction::IntToPtr, V, DestTy, Name);
}
Value *CreateBitCast(Value *V, const Type *DestTy,
const char *Name = "") {
return CreateCast(Instruction::BitCast, V, DestTy, Name);
}
Value *CreateCast(Instruction::CastOps Op, Value *V, const Type *DestTy,
const char *Name = "") {
if (V->getType() == DestTy)
return V;
if (Constant *VC = dyn_cast<Constant>(V))
return ConstantExpr::getCast(Op, VC, DestTy);
return Insert(CastInst::Create(Op, V, DestTy), Name);
}
Value *CreateIntCast(Value *V, const Type *DestTy, bool isSigned,
const char *Name = "") {
if (V->getType() == DestTy)
return V;
if (Constant *VC = dyn_cast<Constant>(V))
return ConstantExpr::getIntegerCast(VC, DestTy, isSigned);
return Insert(CastInst::CreateIntegerCast(V, DestTy, isSigned), Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Compare Instructions
//===--------------------------------------------------------------------===//
Value *CreateICmpEQ(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_EQ, LHS, RHS, Name);
}
Value *CreateICmpNE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_NE, LHS, RHS, Name);
}
Value *CreateICmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_UGT, LHS, RHS, Name);
}
Value *CreateICmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_UGE, LHS, RHS, Name);
}
Value *CreateICmpULT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_ULT, LHS, RHS, Name);
}
Value *CreateICmpULE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_ULE, LHS, RHS, Name);
}
Value *CreateICmpSGT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_SGT, LHS, RHS, Name);
}
Value *CreateICmpSGE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_SGE, LHS, RHS, Name);
}
Value *CreateICmpSLT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_SLT, LHS, RHS, Name);
}
Value *CreateICmpSLE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateICmp(ICmpInst::ICMP_SLE, LHS, RHS, Name);
}
Value *CreateFCmpOEQ(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_OEQ, LHS, RHS, Name);
}
Value *CreateFCmpOGT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_OGT, LHS, RHS, Name);
}
Value *CreateFCmpOGE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_OGE, LHS, RHS, Name);
}
Value *CreateFCmpOLT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_OLT, LHS, RHS, Name);
}
Value *CreateFCmpOLE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_OLE, LHS, RHS, Name);
}
Value *CreateFCmpONE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_ONE, LHS, RHS, Name);
}
Value *CreateFCmpORD(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_ORD, LHS, RHS, Name);
}
Value *CreateFCmpUNO(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_UNO, LHS, RHS, Name);
}
Value *CreateFCmpUEQ(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_UEQ, LHS, RHS, Name);
}
Value *CreateFCmpUGT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_UGT, LHS, RHS, Name);
}
Value *CreateFCmpUGE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_UGE, LHS, RHS, Name);
}
Value *CreateFCmpULT(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_ULT, LHS, RHS, Name);
}
Value *CreateFCmpULE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_ULE, LHS, RHS, Name);
}
Value *CreateFCmpUNE(Value *LHS, Value *RHS, const char *Name = "") {
return CreateFCmp(FCmpInst::FCMP_UNE, LHS, RHS, Name);
}
Value *CreateICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getCompare(P, LC, RC);
return Insert(new ICmpInst(P, LHS, RHS), Name);
}
Value *CreateFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getCompare(P, LC, RC);
return Insert(new FCmpInst(P, LHS, RHS), Name);
}
Value *CreateVICmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getCompare(P, LC, RC);
return Insert(new VICmpInst(P, LHS, RHS), Name);
}
Value *CreateVFCmp(CmpInst::Predicate P, Value *LHS, Value *RHS,
const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return ConstantExpr::getCompare(P, LC, RC);
return Insert(new VFCmpInst(P, LHS, RHS), Name);
}
//===--------------------------------------------------------------------===//
// Instruction creation methods: Other Instructions
//===--------------------------------------------------------------------===//
PHINode *CreatePHI(const Type *Ty, const char *Name = "") {
return Insert(PHINode::Create(Ty), Name);
}
CallInst *CreateCall(Value *Callee, const char *Name = "") {
return Insert(CallInst::Create(Callee), Name);
}
CallInst *CreateCall(Value *Callee, Value *Arg, const char *Name = "") {
return Insert(CallInst::Create(Callee, Arg), Name);
}
CallInst *CreateCall2(Value *Callee, Value *Arg1, Value *Arg2,
const char *Name = "") {
Value *Args[] = { Arg1, Arg2 };
return Insert(CallInst::Create(Callee, Args, Args+2), Name);
}
CallInst *CreateCall3(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
const char *Name = "") {
Value *Args[] = { Arg1, Arg2, Arg3 };
return Insert(CallInst::Create(Callee, Args, Args+3), Name);
}
CallInst *CreateCall4(Value *Callee, Value *Arg1, Value *Arg2, Value *Arg3,
Value *Arg4, const char *Name = "") {
Value *Args[] = { Arg1, Arg2, Arg3, Arg4 };
return Insert(CallInst::Create(Callee, Args, Args+4), Name);
}
template<typename InputIterator>
CallInst *CreateCall(Value *Callee, InputIterator ArgBegin,
InputIterator ArgEnd, const char *Name = "") {
return Insert(CallInst::Create(Callee, ArgBegin, ArgEnd), Name);
}
Value *CreateSelect(Value *C, Value *True, Value *False,
const char *Name = "") {
if (Constant *CC = dyn_cast<Constant>(C))
if (Constant *TC = dyn_cast<Constant>(True))
if (Constant *FC = dyn_cast<Constant>(False))
return ConstantExpr::getSelect(CC, TC, FC);
return Insert(SelectInst::Create(C, True, False), Name);
}
VAArgInst *CreateVAArg(Value *List, const Type *Ty, const char *Name = "") {
return Insert(new VAArgInst(List, Ty), Name);
}
Value *CreateExtractElement(Value *Vec, Value *Idx,
const char *Name = "") {
if (Constant *VC = dyn_cast<Constant>(Vec))
if (Constant *IC = dyn_cast<Constant>(Idx))
return ConstantExpr::getExtractElement(VC, IC);
return Insert(new ExtractElementInst(Vec, Idx), Name);
}
Value *CreateInsertElement(Value *Vec, Value *NewElt, Value *Idx,
const char *Name = "") {
if (Constant *VC = dyn_cast<Constant>(Vec))
if (Constant *NC = dyn_cast<Constant>(NewElt))
if (Constant *IC = dyn_cast<Constant>(Idx))
return ConstantExpr::getInsertElement(VC, NC, IC);
return Insert(InsertElementInst::Create(Vec, NewElt, Idx), Name);
}
Value *CreateShuffleVector(Value *V1, Value *V2, Value *Mask,
const char *Name = "") {
if (Constant *V1C = dyn_cast<Constant>(V1))
if (Constant *V2C = dyn_cast<Constant>(V2))
if (Constant *MC = dyn_cast<Constant>(Mask))
return ConstantExpr::getShuffleVector(V1C, V2C, MC);
return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
}
};
}
#endif
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