| //===-- 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" |
| |
| namespace llvm { |
| |
| /// ConstantFolder - Create constants with minimum, target independent, folding. |
| class ConstantFolder { |
| public: |
| |
| //===--------------------------------------------------------------------===// |
| // Binary Operators |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateAdd(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getAdd(LHS, RHS); |
| } |
| Constant *CreateSub(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getSub(LHS, RHS); |
| } |
| Constant *CreateMul(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getMul(LHS, RHS); |
| } |
| Constant *CreateUDiv(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getUDiv(LHS, RHS); |
| } |
| Constant *CreateSDiv(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getSDiv(LHS, RHS); |
| } |
| Constant *CreateFDiv(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getFDiv(LHS, RHS); |
| } |
| Constant *CreateURem(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getURem(LHS, RHS); |
| } |
| Constant *CreateSRem(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getSRem(LHS, RHS); |
| } |
| Constant *CreateFRem(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getFRem(LHS, RHS); |
| } |
| Constant *CreateShl(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getShl(LHS, RHS); |
| } |
| Constant *CreateLShr(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getLShr(LHS, RHS); |
| } |
| Constant *CreateAShr(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getAShr(LHS, RHS); |
| } |
| Constant *CreateAnd(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getAnd(LHS, RHS); |
| } |
| Constant *CreateOr(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getOr(LHS, RHS); |
| } |
| Constant *CreateXor(Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::getXor(LHS, RHS); |
| } |
| |
| Constant *CreateBinOp(Instruction::BinaryOps Opc, |
| Constant *LHS, Constant *RHS) const { |
| return ConstantExpr::get(Opc, LHS, RHS); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Unary Operators |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateNeg(Constant *C) const { |
| return ConstantExpr::getNeg(C); |
| } |
| Constant *CreateNot(Constant *C) const { |
| return ConstantExpr::getNot(C); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Memory Instructions |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateGetElementPtr(Constant *C, Constant* const *IdxList, |
| unsigned NumIdx) const { |
| return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx); |
| } |
| Constant *CreateGetElementPtr(Constant *C, Value* const *IdxList, |
| unsigned NumIdx) const { |
| return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Cast/Conversion Operators |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateCast(Instruction::CastOps Op, Constant *C, |
| const Type *DestTy) const { |
| return ConstantExpr::getCast(Op, C, DestTy); |
| } |
| Constant *CreateIntCast(Constant *C, const Type *DestTy, |
| bool isSigned) const { |
| return ConstantExpr::getIntegerCast(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 ConstantExpr::getTruncOrBitCast(C, DestTy); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Compare Instructions |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS, |
| Constant *RHS) const { |
| return ConstantExpr::getCompare(P, LHS, RHS); |
| } |
| Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS, |
| Constant *RHS) const { |
| return ConstantExpr::getCompare(P, LHS, RHS); |
| } |
| Constant *CreateVICmp(CmpInst::Predicate P, Constant *LHS, |
| Constant *RHS) const { |
| return ConstantExpr::getCompare(P, LHS, RHS); |
| } |
| Constant *CreateVFCmp(CmpInst::Predicate P, Constant *LHS, |
| Constant *RHS) const { |
| return ConstantExpr::getCompare(P, LHS, RHS); |
| } |
| |
| //===--------------------------------------------------------------------===// |
| // Other Instructions |
| //===--------------------------------------------------------------------===// |
| |
| Constant *CreateSelect(Constant *C, Constant *True, Constant *False) const { |
| return ConstantExpr::getSelect(C, True, False); |
| } |
| |
| Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const { |
| return ConstantExpr::getExtractElement(Vec, Idx); |
| } |
| |
| Constant *CreateInsertElement(Constant *Vec, Constant *NewElt, |
| Constant *Idx) const { |
| return ConstantExpr::getInsertElement(Vec, NewElt, Idx); |
| } |
| |
| Constant *CreateShuffleVector(Constant *V1, Constant *V2, |
| Constant *Mask) const { |
| return ConstantExpr::getShuffleVector(V1, V2, Mask); |
| } |
| |
| Constant *CreateExtractValue(Constant *Agg, const unsigned *IdxList, |
| unsigned NumIdx) const { |
| return ConstantExpr::getExtractValue(Agg, IdxList, NumIdx); |
| } |
| |
| Constant *CreateInsertValue(Constant *Agg, Constant *Val, |
| const unsigned *IdxList, unsigned NumIdx) const { |
| return ConstantExpr::getInsertValue(Agg, Val, IdxList, NumIdx); |
| } |
| }; |
| |
| } |
| |
| #endif |