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//===-- llvm/Support/ConstantFolder.h - Constant folding helper -*- 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 ConstantFolder class, a helper for IRBuilder.
// It provides IRBuilder with a set of methods for creating constants
// with minimal folding. For general constant creation and folding,
// use ConstantExpr and the routines in llvm/Analysis/ConstantFolding.h.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_CONSTANTFOLDER_H
#define LLVM_SUPPORT_CONSTANTFOLDER_H
#include "llvm/Constants.h"
#include "llvm/LLVMContext.h"
namespace llvm {
/// ConstantFolder - Create constants with minimum, target independent, folding.
class ConstantFolder {
LLVMContext &Context;
public:
ConstantFolder(LLVMContext &C) : Context(C) { }
//===--------------------------------------------------------------------===//
// Binary Operators
//===--------------------------------------------------------------------===//
Constant *CreateAdd(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprAdd(LHS, RHS);
}
Constant *CreateFAdd(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprFAdd(LHS, RHS);
}
Constant *CreateSub(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprSub(LHS, RHS);
}
Constant *CreateFSub(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprFSub(LHS, RHS);
}
Constant *CreateMul(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprMul(LHS, RHS);
}
Constant *CreateFMul(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprFMul(LHS, RHS);
}
Constant *CreateUDiv(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprUDiv(LHS, RHS);
}
Constant *CreateSDiv(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprSDiv(LHS, RHS);
}
Constant *CreateFDiv(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprFDiv(LHS, RHS);
}
Constant *CreateURem(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprURem(LHS, RHS);
}
Constant *CreateSRem(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprSRem(LHS, RHS);
}
Constant *CreateFRem(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprFRem(LHS, RHS);
}
Constant *CreateShl(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprShl(LHS, RHS);
}
Constant *CreateLShr(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprLShr(LHS, RHS);
}
Constant *CreateAShr(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprAShr(LHS, RHS);
}
Constant *CreateAnd(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprAnd(LHS, RHS);
}
Constant *CreateOr(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprOr(LHS, RHS);
}
Constant *CreateXor(Constant *LHS, Constant *RHS) const {
return Context.getConstantExprXor(LHS, RHS);
}
Constant *CreateBinOp(Instruction::BinaryOps Opc,
Constant *LHS, Constant *RHS) const {
return Context.getConstantExpr(Opc, LHS, RHS);
}
//===--------------------------------------------------------------------===//
// Unary Operators
//===--------------------------------------------------------------------===//
Constant *CreateNeg(Constant *C) const {
return Context.getConstantExprNeg(C);
}
Constant *CreateFNeg(Constant *C) const {
return Context.getConstantExprFNeg(C);
}
Constant *CreateNot(Constant *C) const {
return Context.getConstantExprNot(C);
}
//===--------------------------------------------------------------------===//
// Memory Instructions
//===--------------------------------------------------------------------===//
Constant *CreateGetElementPtr(Constant *C, Constant* const *IdxList,
unsigned NumIdx) const {
return Context.getConstantExprGetElementPtr(C, IdxList, NumIdx);
}
Constant *CreateGetElementPtr(Constant *C, Value* const *IdxList,
unsigned NumIdx) const {
return Context.getConstantExprGetElementPtr(C, IdxList, NumIdx);
}
//===--------------------------------------------------------------------===//
// Cast/Conversion Operators
//===--------------------------------------------------------------------===//
Constant *CreateCast(Instruction::CastOps Op, Constant *C,
const Type *DestTy) const {
return Context.getConstantExprCast(Op, C, DestTy);
}
Constant *CreateIntCast(Constant *C, const Type *DestTy,
bool isSigned) const {
return Context.getConstantExprIntegerCast(C, DestTy, isSigned);
}
Constant *CreateBitCast(Constant *C, const Type *DestTy) const {
return CreateCast(Instruction::BitCast, C, DestTy);
}
Constant *CreateIntToPtr(Constant *C, const Type *DestTy) const {
return CreateCast(Instruction::IntToPtr, C, DestTy);
}
Constant *CreatePtrToInt(Constant *C, const Type *DestTy) const {
return CreateCast(Instruction::PtrToInt, C, DestTy);
}
Constant *CreateTruncOrBitCast(Constant *C, const Type *DestTy) const {
return Context.getConstantExprTruncOrBitCast(C, DestTy);
}
//===--------------------------------------------------------------------===//
// Compare Instructions
//===--------------------------------------------------------------------===//
Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS,
Constant *RHS) const {
return Context.getConstantExprCompare(P, LHS, RHS);
}
Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
Constant *RHS) const {
return Context.getConstantExprCompare(P, LHS, RHS);
}
//===--------------------------------------------------------------------===//
// Other Instructions
//===--------------------------------------------------------------------===//
Constant *CreateSelect(Constant *C, Constant *True, Constant *False) const {
return Context.getConstantExprSelect(C, True, False);
}
Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const {
return Context.getConstantExprExtractElement(Vec, Idx);
}
Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
Constant *Idx) const {
return Context.getConstantExprInsertElement(Vec, NewElt, Idx);
}
Constant *CreateShuffleVector(Constant *V1, Constant *V2,
Constant *Mask) const {
return Context.getConstantExprShuffleVector(V1, V2, Mask);
}
Constant *CreateExtractValue(Constant *Agg, const unsigned *IdxList,
unsigned NumIdx) const {
return Context.getConstantExprExtractValue(Agg, IdxList, NumIdx);
}
Constant *CreateInsertValue(Constant *Agg, Constant *Val,
const unsigned *IdxList, unsigned NumIdx) const {
return Context.getConstantExprInsertValue(Agg, Val, IdxList, NumIdx);
}
};
}
#endif
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