103 lines
4.3 KiB
C++
103 lines
4.3 KiB
C++
//===- IRBuilderFolder.h - Const folder interface for IRBuilder -*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines for constant folding interface used by IRBuilder.
|
|
// It is implemented by ConstantFolder (default), TargetFolder and NoFoler.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_IR_IRBUILDERFOLDER_H
|
|
#define LLVM_IR_IRBUILDERFOLDER_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/IR/InstrTypes.h"
|
|
#include "llvm/IR/Instruction.h"
|
|
|
|
namespace llvm {
|
|
|
|
/// IRBuilderFolder - Interface for constant folding in IRBuilder.
|
|
class IRBuilderFolder {
|
|
public:
|
|
virtual ~IRBuilderFolder();
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Value-based folders.
|
|
//
|
|
// Return an existing value or a constant if the operation can be simplified.
|
|
// Otherwise return nullptr.
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
virtual Value *FoldBinOp(Instruction::BinaryOps Opc, Value *LHS,
|
|
Value *RHS) const = 0;
|
|
|
|
virtual Value *FoldExactBinOp(Instruction::BinaryOps Opc, Value *LHS,
|
|
Value *RHS, bool IsExact) const = 0;
|
|
|
|
virtual Value *FoldNoWrapBinOp(Instruction::BinaryOps Opc, Value *LHS,
|
|
Value *RHS, bool HasNUW,
|
|
bool HasNSW) const = 0;
|
|
|
|
virtual Value *FoldBinOpFMF(Instruction::BinaryOps Opc, Value *LHS,
|
|
Value *RHS, FastMathFlags FMF) const = 0;
|
|
|
|
virtual Value *FoldUnOpFMF(Instruction::UnaryOps Opc, Value *V,
|
|
FastMathFlags FMF) const = 0;
|
|
|
|
virtual Value *FoldICmp(CmpInst::Predicate P, Value *LHS,
|
|
Value *RHS) const = 0;
|
|
|
|
virtual Value *FoldGEP(Type *Ty, Value *Ptr, ArrayRef<Value *> IdxList,
|
|
bool IsInBounds = false) const = 0;
|
|
|
|
virtual Value *FoldSelect(Value *C, Value *True, Value *False) const = 0;
|
|
|
|
virtual Value *FoldExtractValue(Value *Agg,
|
|
ArrayRef<unsigned> IdxList) const = 0;
|
|
|
|
virtual Value *FoldInsertValue(Value *Agg, Value *Val,
|
|
ArrayRef<unsigned> IdxList) const = 0;
|
|
|
|
virtual Value *FoldExtractElement(Value *Vec, Value *Idx) const = 0;
|
|
|
|
virtual Value *FoldInsertElement(Value *Vec, Value *NewElt,
|
|
Value *Idx) const = 0;
|
|
|
|
virtual Value *FoldShuffleVector(Value *V1, Value *V2,
|
|
ArrayRef<int> Mask) const = 0;
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Cast/Conversion Operators
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
virtual Value *CreateCast(Instruction::CastOps Op, Constant *C,
|
|
Type *DestTy) const = 0;
|
|
virtual Value *CreatePointerCast(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreatePointerBitCastOrAddrSpaceCast(Constant *C,
|
|
Type *DestTy) const = 0;
|
|
virtual Value *CreateIntCast(Constant *C, Type *DestTy,
|
|
bool isSigned) const = 0;
|
|
virtual Value *CreateFPCast(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreateBitCast(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreateIntToPtr(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreatePtrToInt(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreateZExtOrBitCast(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreateSExtOrBitCast(Constant *C, Type *DestTy) const = 0;
|
|
virtual Value *CreateTruncOrBitCast(Constant *C, Type *DestTy) const = 0;
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Compare Instructions
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
virtual Value *CreateFCmp(CmpInst::Predicate P, Constant *LHS,
|
|
Constant *RHS) const = 0;
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_IR_IRBUILDERFOLDER_H
|