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This may be used as the second IRBuilder template parameter, the idea being that people learning LLVM may find it helpful (several people asked on IRC if it was possible to turn off constant folding because it made it hard for them to see what was going on). Compiles, but otherwise completely untested. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54698 91177308-0d34-0410-b5e6-96231b3b80d8
190 lines
6.8 KiB
C++
190 lines
6.8 KiB
C++
//===-- llvm/Support/ConstantFolder.h - Constant folding helper -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the ConstantFolder class, a helper for IRBuilder.
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// It provides IRBuilder with a set of methods for creating constants
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// with minimal folding. For general constant creation and folding,
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// use ConstantExpr and the routines in llvm/Analysis/ConstantFolding.h.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_CONSTANTFOLDER_H
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#define LLVM_SUPPORT_CONSTANTFOLDER_H
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#include "llvm/Constants.h"
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namespace llvm {
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/// ConstantFolder - Create constants with minimum, target independent, folding.
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class ConstantFolder {
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public:
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//===--------------------------------------------------------------------===//
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// Binary Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateAdd(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getAdd(LHS, RHS);
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}
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Constant *CreateSub(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getSub(LHS, RHS);
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}
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Constant *CreateMul(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getMul(LHS, RHS);
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}
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Constant *CreateUDiv(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getUDiv(LHS, RHS);
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}
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Constant *CreateSDiv(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getSDiv(LHS, RHS);
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}
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Constant *CreateFDiv(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getFDiv(LHS, RHS);
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}
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Constant *CreateURem(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getURem(LHS, RHS);
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}
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Constant *CreateSRem(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getSRem(LHS, RHS);
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}
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Constant *CreateFRem(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getFRem(LHS, RHS);
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}
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Constant *CreateShl(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getShl(LHS, RHS);
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}
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Constant *CreateLShr(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getLShr(LHS, RHS);
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}
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Constant *CreateAShr(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getAShr(LHS, RHS);
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}
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Constant *CreateAnd(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getAnd(LHS, RHS);
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}
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Constant *CreateOr(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getOr(LHS, RHS);
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}
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Constant *CreateXor(Constant *LHS, Constant *RHS) const {
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return ConstantExpr::getXor(LHS, RHS);
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}
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Constant *CreateBinOp(Instruction::BinaryOps Opc,
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Constant *LHS, Constant *RHS) const {
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return ConstantExpr::get(Opc, LHS, RHS);
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}
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//===--------------------------------------------------------------------===//
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// Unary Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateNeg(Constant *C) const {
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return ConstantExpr::getNeg(C);
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}
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Constant *CreateNot(Constant *C) const {
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return ConstantExpr::getNot(C);
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}
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//===--------------------------------------------------------------------===//
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// Memory Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateGetElementPtr(Constant *C, Constant* const *IdxList,
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unsigned NumIdx) const {
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return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx);
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}
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Constant *CreateGetElementPtr(Constant *C, Value* const *IdxList,
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unsigned NumIdx) const {
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return ConstantExpr::getGetElementPtr(C, IdxList, NumIdx);
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}
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//===--------------------------------------------------------------------===//
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// Cast/Conversion Operators
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//===--------------------------------------------------------------------===//
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Constant *CreateCast(Instruction::CastOps Op, Constant *C,
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const Type *DestTy) const {
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return ConstantExpr::getCast(Op, C, DestTy);
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}
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Constant *CreateIntCast(Constant *C, const Type *DestTy,
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bool isSigned) const {
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return ConstantExpr::getIntegerCast(C, DestTy, isSigned);
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}
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Constant *CreateBitCast(Constant *C, const Type *DestTy) const {
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return CreateCast(Instruction::BitCast, C, DestTy);
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}
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Constant *CreateIntToPtr(Constant *C, const Type *DestTy) const {
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return CreateCast(Instruction::IntToPtr, C, DestTy);
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}
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Constant *CreatePtrToInt(Constant *C, const Type *DestTy) const {
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return CreateCast(Instruction::PtrToInt, C, DestTy);
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}
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Constant *CreateTruncOrBitCast(Constant *C, const Type *DestTy) const {
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return ConstantExpr::getTruncOrBitCast(C, DestTy);
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}
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//===--------------------------------------------------------------------===//
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// Compare Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return ConstantExpr::getCompare(P, LHS, RHS);
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}
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Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return ConstantExpr::getCompare(P, LHS, RHS);
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}
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Constant *CreateVICmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return ConstantExpr::getCompare(P, LHS, RHS);
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}
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Constant *CreateVFCmp(CmpInst::Predicate P, Constant *LHS,
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Constant *RHS) const {
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return ConstantExpr::getCompare(P, LHS, RHS);
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}
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//===--------------------------------------------------------------------===//
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// Other Instructions
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//===--------------------------------------------------------------------===//
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Constant *CreateSelect(Constant *C, Constant *True, Constant *False) const {
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return ConstantExpr::getSelect(C, True, False);
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}
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Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const {
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return ConstantExpr::getExtractElement(Vec, Idx);
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}
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Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
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Constant *Idx) const {
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return ConstantExpr::getInsertElement(Vec, NewElt, Idx);
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}
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Constant *CreateShuffleVector(Constant *V1, Constant *V2,
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Constant *Mask) const {
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return ConstantExpr::getShuffleVector(V1, V2, Mask);
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}
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Constant *CreateExtractValue(Constant *Agg, const unsigned *IdxList,
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unsigned NumIdx) const {
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return ConstantExpr::getExtractValue(Agg, IdxList, NumIdx);
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}
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Constant *CreateInsertValue(Constant *Agg, Constant *Val,
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const unsigned *IdxList, unsigned NumIdx) const {
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return ConstantExpr::getInsertValue(Agg, Val, IdxList, NumIdx);
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}
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};
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}
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#endif
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