mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 12:12:47 +01:00
54 lines
2.4 KiB
C++
54 lines
2.4 KiB
C++
//===-- ConstantFolding.h - Internal Constant Folding Interface -*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the (internal) constant folding interfaces for LLVM. These
|
|
// interfaces are used by the ConstantExpr::get* methods to automatically fold
|
|
// constants when possible.
|
|
//
|
|
// These operators may return a null object if I don't know how to perform the
|
|
// specified operation on the specified constant types.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef CONSTANTFOLDING_H
|
|
#define CONSTANTFOLDING_H
|
|
|
|
namespace llvm {
|
|
class Value;
|
|
class Constant;
|
|
class Type;
|
|
|
|
// Constant fold various types of instruction...
|
|
Constant *ConstantFoldCastInstruction(
|
|
unsigned opcode, ///< The opcode of the cast
|
|
const Constant *V, ///< The source constant
|
|
const Type *DestTy ///< The destination type
|
|
);
|
|
Constant *ConstantFoldSelectInstruction(const Constant *Cond,
|
|
const Constant *V1,
|
|
const Constant *V2);
|
|
Constant *ConstantFoldExtractElementInstruction(const Constant *Val,
|
|
const Constant *Idx);
|
|
Constant *ConstantFoldInsertElementInstruction(const Constant *Val,
|
|
const Constant *Elt,
|
|
const Constant *Idx);
|
|
Constant *ConstantFoldShuffleVectorInstruction(const Constant *V1,
|
|
const Constant *V2,
|
|
const Constant *Mask);
|
|
Constant *ConstantFoldBinaryInstruction(unsigned Opcode, const Constant *V1,
|
|
const Constant *V2);
|
|
Constant *ConstantFoldCompareInstruction(unsigned short predicate,
|
|
const Constant *C1,
|
|
const Constant *C2);
|
|
Constant *ConstantFoldGetElementPtr(const Constant *C,
|
|
Constant* const *Idxs, unsigned NumIdx);
|
|
} // End llvm namespace
|
|
|
|
#endif
|