mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-22 20:43:44 +02:00
b4f244209e
this would have been required because of the use of DataLayout, but that has moved into the IR proper. It is still required because this folder uses the constant folding in the analysis library (which uses the datalayout) as the more aggressive basis of its folder. llvm-svn: 202832
263 lines
10 KiB
C++
263 lines
10 KiB
C++
//====- TargetFolder.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 TargetFolder class, a helper for IRBuilder.
|
|
// It provides IRBuilder with a set of methods for creating constants with
|
|
// target dependent folding, in addition to the same target-independent
|
|
// folding that the ConstantFolder class provides. For general constant
|
|
// creation and folding, use ConstantExpr and the routines in
|
|
// llvm/Analysis/ConstantFolding.h.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ANALYSIS_TARGETFOLDER_H
|
|
#define LLVM_ANALYSIS_TARGETFOLDER_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/Analysis/ConstantFolding.h"
|
|
#include "llvm/IR/Constants.h"
|
|
#include "llvm/IR/InstrTypes.h"
|
|
|
|
namespace llvm {
|
|
|
|
class DataLayout;
|
|
|
|
/// TargetFolder - Create constants with target dependent folding.
|
|
class TargetFolder {
|
|
const DataLayout *DL;
|
|
|
|
/// Fold - Fold the constant using target specific information.
|
|
Constant *Fold(Constant *C) const {
|
|
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
|
|
if (Constant *CF = ConstantFoldConstantExpression(CE, DL))
|
|
return CF;
|
|
return C;
|
|
}
|
|
|
|
public:
|
|
explicit TargetFolder(const DataLayout *DL) : DL(DL) {}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Binary Operators
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateAdd(Constant *LHS, Constant *RHS,
|
|
bool HasNUW = false, bool HasNSW = false) const {
|
|
return Fold(ConstantExpr::getAdd(LHS, RHS, HasNUW, HasNSW));
|
|
}
|
|
Constant *CreateFAdd(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getFAdd(LHS, RHS));
|
|
}
|
|
Constant *CreateSub(Constant *LHS, Constant *RHS,
|
|
bool HasNUW = false, bool HasNSW = false) const {
|
|
return Fold(ConstantExpr::getSub(LHS, RHS, HasNUW, HasNSW));
|
|
}
|
|
Constant *CreateFSub(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getFSub(LHS, RHS));
|
|
}
|
|
Constant *CreateMul(Constant *LHS, Constant *RHS,
|
|
bool HasNUW = false, bool HasNSW = false) const {
|
|
return Fold(ConstantExpr::getMul(LHS, RHS, HasNUW, HasNSW));
|
|
}
|
|
Constant *CreateFMul(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getFMul(LHS, RHS));
|
|
}
|
|
Constant *CreateUDiv(Constant *LHS, Constant *RHS, bool isExact = false)const{
|
|
return Fold(ConstantExpr::getUDiv(LHS, RHS, isExact));
|
|
}
|
|
Constant *CreateSDiv(Constant *LHS, Constant *RHS, bool isExact = false)const{
|
|
return Fold(ConstantExpr::getSDiv(LHS, RHS, isExact));
|
|
}
|
|
Constant *CreateFDiv(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getFDiv(LHS, RHS));
|
|
}
|
|
Constant *CreateURem(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getURem(LHS, RHS));
|
|
}
|
|
Constant *CreateSRem(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getSRem(LHS, RHS));
|
|
}
|
|
Constant *CreateFRem(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getFRem(LHS, RHS));
|
|
}
|
|
Constant *CreateShl(Constant *LHS, Constant *RHS,
|
|
bool HasNUW = false, bool HasNSW = false) const {
|
|
return Fold(ConstantExpr::getShl(LHS, RHS, HasNUW, HasNSW));
|
|
}
|
|
Constant *CreateLShr(Constant *LHS, Constant *RHS, bool isExact = false)const{
|
|
return Fold(ConstantExpr::getLShr(LHS, RHS, isExact));
|
|
}
|
|
Constant *CreateAShr(Constant *LHS, Constant *RHS, bool isExact = false)const{
|
|
return Fold(ConstantExpr::getAShr(LHS, RHS, isExact));
|
|
}
|
|
Constant *CreateAnd(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getAnd(LHS, RHS));
|
|
}
|
|
Constant *CreateOr(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getOr(LHS, RHS));
|
|
}
|
|
Constant *CreateXor(Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::getXor(LHS, RHS));
|
|
}
|
|
|
|
Constant *CreateBinOp(Instruction::BinaryOps Opc,
|
|
Constant *LHS, Constant *RHS) const {
|
|
return Fold(ConstantExpr::get(Opc, LHS, RHS));
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Unary Operators
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateNeg(Constant *C,
|
|
bool HasNUW = false, bool HasNSW = false) const {
|
|
return Fold(ConstantExpr::getNeg(C, HasNUW, HasNSW));
|
|
}
|
|
Constant *CreateFNeg(Constant *C) const {
|
|
return Fold(ConstantExpr::getFNeg(C));
|
|
}
|
|
Constant *CreateNot(Constant *C) const {
|
|
return Fold(ConstantExpr::getNot(C));
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Memory Instructions
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateGetElementPtr(Constant *C,
|
|
ArrayRef<Constant *> IdxList) const {
|
|
return Fold(ConstantExpr::getGetElementPtr(C, IdxList));
|
|
}
|
|
Constant *CreateGetElementPtr(Constant *C, Constant *Idx) const {
|
|
// This form of the function only exists to avoid ambiguous overload
|
|
// warnings about whether to convert Idx to ArrayRef<Constant *> or
|
|
// ArrayRef<Value *>.
|
|
return Fold(ConstantExpr::getGetElementPtr(C, Idx));
|
|
}
|
|
Constant *CreateGetElementPtr(Constant *C,
|
|
ArrayRef<Value *> IdxList) const {
|
|
return Fold(ConstantExpr::getGetElementPtr(C, IdxList));
|
|
}
|
|
|
|
Constant *CreateInBoundsGetElementPtr(Constant *C,
|
|
ArrayRef<Constant *> IdxList) const {
|
|
return Fold(ConstantExpr::getInBoundsGetElementPtr(C, IdxList));
|
|
}
|
|
Constant *CreateInBoundsGetElementPtr(Constant *C, Constant *Idx) const {
|
|
// This form of the function only exists to avoid ambiguous overload
|
|
// warnings about whether to convert Idx to ArrayRef<Constant *> or
|
|
// ArrayRef<Value *>.
|
|
return Fold(ConstantExpr::getInBoundsGetElementPtr(C, Idx));
|
|
}
|
|
Constant *CreateInBoundsGetElementPtr(Constant *C,
|
|
ArrayRef<Value *> IdxList) const {
|
|
return Fold(ConstantExpr::getInBoundsGetElementPtr(C, IdxList));
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Cast/Conversion Operators
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateCast(Instruction::CastOps Op, Constant *C,
|
|
Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getCast(Op, C, DestTy));
|
|
}
|
|
Constant *CreateIntCast(Constant *C, Type *DestTy,
|
|
bool isSigned) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getIntegerCast(C, DestTy, isSigned));
|
|
}
|
|
Constant *CreatePointerCast(Constant *C, Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getPointerCast(C, DestTy));
|
|
}
|
|
Constant *CreateFPCast(Constant *C, Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getFPCast(C, DestTy));
|
|
}
|
|
Constant *CreateBitCast(Constant *C, Type *DestTy) const {
|
|
return CreateCast(Instruction::BitCast, C, DestTy);
|
|
}
|
|
Constant *CreateIntToPtr(Constant *C, Type *DestTy) const {
|
|
return CreateCast(Instruction::IntToPtr, C, DestTy);
|
|
}
|
|
Constant *CreatePtrToInt(Constant *C, Type *DestTy) const {
|
|
return CreateCast(Instruction::PtrToInt, C, DestTy);
|
|
}
|
|
Constant *CreateZExtOrBitCast(Constant *C, Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getZExtOrBitCast(C, DestTy));
|
|
}
|
|
Constant *CreateSExtOrBitCast(Constant *C, Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getSExtOrBitCast(C, DestTy));
|
|
}
|
|
Constant *CreateTruncOrBitCast(Constant *C, Type *DestTy) const {
|
|
if (C->getType() == DestTy)
|
|
return C; // avoid calling Fold
|
|
return Fold(ConstantExpr::getTruncOrBitCast(C, DestTy));
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Compare Instructions
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateICmp(CmpInst::Predicate P, Constant *LHS,
|
|
Constant *RHS) const {
|
|
return Fold(ConstantExpr::getCompare(P, LHS, RHS));
|
|
}
|
|
Constant *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
|
|
Constant *RHS) const {
|
|
return Fold(ConstantExpr::getCompare(P, LHS, RHS));
|
|
}
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Other Instructions
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
Constant *CreateSelect(Constant *C, Constant *True, Constant *False) const {
|
|
return Fold(ConstantExpr::getSelect(C, True, False));
|
|
}
|
|
|
|
Constant *CreateExtractElement(Constant *Vec, Constant *Idx) const {
|
|
return Fold(ConstantExpr::getExtractElement(Vec, Idx));
|
|
}
|
|
|
|
Constant *CreateInsertElement(Constant *Vec, Constant *NewElt,
|
|
Constant *Idx) const {
|
|
return Fold(ConstantExpr::getInsertElement(Vec, NewElt, Idx));
|
|
}
|
|
|
|
Constant *CreateShuffleVector(Constant *V1, Constant *V2,
|
|
Constant *Mask) const {
|
|
return Fold(ConstantExpr::getShuffleVector(V1, V2, Mask));
|
|
}
|
|
|
|
Constant *CreateExtractValue(Constant *Agg,
|
|
ArrayRef<unsigned> IdxList) const {
|
|
return Fold(ConstantExpr::getExtractValue(Agg, IdxList));
|
|
}
|
|
|
|
Constant *CreateInsertValue(Constant *Agg, Constant *Val,
|
|
ArrayRef<unsigned> IdxList) const {
|
|
return Fold(ConstantExpr::getInsertValue(Agg, Val, IdxList));
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|