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llvm-6502/include/llvm/Support/IRBuilder.h
Dan Gohman b60182f1b0 Add an accessor method to return the insertion point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-20 21:45:41 +00:00

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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/Constants.h"
#include "llvm/Instructions.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Function.h"
#include "llvm/Support/ConstantFolder.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.
/// The first template argument handles whether or not to preserve names in the
/// final instruction output. This defaults to on. The second template argument
/// specifies a class to use for creating constants. This defaults to creating
/// minimally folded constants.
template <bool preserveNames=true, typename T = ConstantFolder> class IRBuilder{
BasicBlock *BB;
BasicBlock::iterator InsertPt;
T Folder;
public:
IRBuilder(const T& F = T()) : Folder(F) { ClearInsertionPoint(); }
explicit IRBuilder(BasicBlock *TheBB, const T& F = T())
: Folder(F) { SetInsertPoint(TheBB); }
IRBuilder(BasicBlock *TheBB, BasicBlock::iterator IP, const T& F = T())
: Folder(F) { SetInsertPoint(TheBB, IP); }
/// getFolder - Get the constant folder being used.
const T& getFolder() { return Folder; }
/// isNamePreserving - Return true if this builder is configured to actually
/// add the requested names to IR created through it.
bool isNamePreserving() const { return preserveNames; }
//===--------------------------------------------------------------------===//
// 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; }
BasicBlock::iterator GetInsertPoint() const { return InsertPt; }
/// 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 (preserveNames && 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));
}
/// CreateAggregateRet - Create a sequence of N insertvalue instructions,
/// with one Value from the retVals array each, that build a aggregate
/// return value one value at a time, and a ret instruction to return
/// the resulting aggregate value. This is a convenience function for
/// code that uses aggregate return values as a vehicle for having
/// multiple return values.
///
ReturnInst *CreateAggregateRet(Value * const* retVals, unsigned N) {
const Type *RetType = BB->getParent()->getReturnType();
Value *V = UndefValue::get(RetType);
for (unsigned i = 0; i != N; ++i)
V = CreateInsertValue(V, retVals[i], i, "mrv");
return Insert(ReturnInst::Create(V));
}
/// 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 Folder.CreateAdd(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 Folder.CreateSub(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 Folder.CreateMul(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 Folder.CreateUDiv(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 Folder.CreateSDiv(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 Folder.CreateFDiv(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 Folder.CreateURem(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 Folder.CreateSRem(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 Folder.CreateFRem(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 Folder.CreateShl(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 Folder.CreateLShr(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 Folder.CreateAShr(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 Folder.CreateAnd(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 Folder.CreateOr(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 Folder.CreateXor(LC, RC);
return Insert(BinaryOperator::CreateXor(LHS, RHS), Name);
}
Value *CreateBinOp(Instruction::BinaryOps Opc,
Value *LHS, Value *RHS, const char *Name = "") {
if (Constant *LC = dyn_cast<Constant>(LHS))
if (Constant *RC = dyn_cast<Constant>(RHS))
return Folder.CreateBinOp(Opc, LC, RC);
return Insert(BinaryOperator::Create(Opc, LHS, RHS), Name);
}
Value *CreateNeg(Value *V, const char *Name = "") {
if (Constant *VC = dyn_cast<Constant>(V))
return Folder.CreateNeg(VC);
return Insert(BinaryOperator::CreateNeg(V), Name);
}
Value *CreateNot(Value *V, const char *Name = "") {
if (Constant *VC = dyn_cast<Constant>(V))
return Folder.CreateNot(VC);
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 = "") {
return Insert(new LoadInst(Ptr), Name);
}
LoadInst *CreateLoad(Value *Ptr, bool isVolatile, const char *Name = "") {
return Insert(new LoadInst(Ptr, 0, isVolatile), Name);
}
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 Folder.CreateGetElementPtr(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 Folder.CreateGetElementPtr(PC, &IC, 1);
return Insert(GetElementPtrInst::Create(Ptr, Idx), Name);
}
Value *CreateConstGEP1_32(Value *Ptr, unsigned Idx0, const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int32Ty, Idx0);
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateGetElementPtr(PC, &Idx, 1);
return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstGEP2_32(Value *Ptr, unsigned Idx0, unsigned Idx1,
const char *Name = "") {
Value *Idxs[] = {
ConstantInt::get(Type::Int32Ty, Idx0),
ConstantInt::get(Type::Int32Ty, Idx1)
};
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateGetElementPtr(PC, Idxs, 2);
return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateConstGEP1_64(Value *Ptr, uint64_t Idx0, const char *Name = "") {
Value *Idx = ConstantInt::get(Type::Int64Ty, Idx0);
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateGetElementPtr(PC, &Idx, 1);
return Insert(GetElementPtrInst::Create(Ptr, &Idx, &Idx+1), Name);
}
Value *CreateConstGEP2_64(Value *Ptr, uint64_t Idx0, uint64_t Idx1,
const char *Name = "") {
Value *Idxs[] = {
ConstantInt::get(Type::Int64Ty, Idx0),
ConstantInt::get(Type::Int64Ty, Idx1)
};
if (Constant *PC = dyn_cast<Constant>(Ptr))
return Folder.CreateGetElementPtr(PC, Idxs, 2);
return Insert(GetElementPtrInst::Create(Ptr, Idxs, Idxs+2), Name);
}
Value *CreateStructGEP(Value *Ptr, unsigned Idx, const char *Name = "") {
return CreateConstGEP2_32(Ptr, 0, Idx, Name);
}
Value *CreateGlobalString(const char *Str = "", const char *Name = "") {
Constant *StrConstant = ConstantArray::get(Str, true);
GlobalVariable *gv = new 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 = ConstantInt::get(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 Folder.CreateCast(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 Folder.CreateIntCast(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 Folder.CreateICmp(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 Folder.CreateFCmp(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 Folder.CreateVICmp(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 Folder.CreateVFCmp(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 Folder.CreateSelect(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 Folder.CreateExtractElement(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 Folder.CreateInsertElement(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 Folder.CreateShuffleVector(V1C, V2C, MC);
return Insert(new ShuffleVectorInst(V1, V2, Mask), Name);
}
Value *CreateExtractValue(Value *Agg, unsigned Idx,
const char *Name = "") {
if (Constant *AggC = dyn_cast<Constant>(Agg))
return Folder.CreateExtractValue(AggC, &Idx, 1);
return Insert(ExtractValueInst::Create(Agg, Idx), Name);
}
template<typename InputIterator>
Value *CreateExtractValue(Value *Agg,
InputIterator IdxBegin,
InputIterator IdxEnd,
const char *Name = "") {
if (Constant *AggC = dyn_cast<Constant>(Agg))
return Folder.CreateExtractValue(AggC, IdxBegin, IdxEnd - IdxBegin);
return Insert(ExtractValueInst::Create(Agg, IdxBegin, IdxEnd), Name);
}
Value *CreateInsertValue(Value *Agg, Value *Val, unsigned Idx,
const char *Name = "") {
if (Constant *AggC = dyn_cast<Constant>(Agg))
if (Constant *ValC = dyn_cast<Constant>(Val))
return Folder.CreateInsertValue(AggC, ValC, &Idx, 1);
return Insert(InsertValueInst::Create(Agg, Val, Idx), Name);
}
template<typename InputIterator>
Value *CreateInsertValue(Value *Agg, Value *Val,
InputIterator IdxBegin,
InputIterator IdxEnd,
const char *Name = "") {
if (Constant *AggC = dyn_cast<Constant>(Agg))
if (Constant *ValC = dyn_cast<Constant>(Val))
return Folder.CreateInsertValue(AggC, ValC,
IdxBegin, IdxEnd - IdxBegin);
return Insert(InsertValueInst::Create(Agg, Val, IdxBegin, IdxEnd), Name);
}
//===--------------------------------------------------------------------===//
// Utility creation methods
//===--------------------------------------------------------------------===//
/// CreateIsNull - Return an i1 value testing if \arg Arg is null.
Value *CreateIsNull(Value *Arg, const char *Name = "") {
return CreateICmpEQ(Arg, Constant::getNullValue(Arg->getType()),
Name);
}
/// CreateIsNotNull - Return an i1 value testing if \arg Arg is not null.
Value *CreateIsNotNull(Value *Arg, const char *Name = "") {
return CreateICmpNE(Arg, Constant::getNullValue(Arg->getType()),
Name);
}
/// CreatePtrDiff - Return the i64 difference between two pointer values,
/// dividing out the size of the pointed-to objects. This is intended to
/// implement C-style pointer subtraction.
Value *CreatePtrDiff(Value *LHS, Value *RHS, const char *Name = "") {
assert(LHS->getType() == RHS->getType() &&
"Pointer subtraction operand types must match!");
const PointerType *ArgType = cast<PointerType>(LHS->getType());
Value *LHS_int = CreatePtrToInt(LHS, Type::Int64Ty);
Value *RHS_int = CreatePtrToInt(RHS, Type::Int64Ty);
Value *Difference = CreateSub(LHS_int, RHS_int);
return CreateSDiv(Difference,
ConstantExpr::getSizeOf(ArgType->getElementType()),
Name);
}
};
}
#endif
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