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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21427 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
//===-- ConstantFolding.h - Internal Constant Folding Interface -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source 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 (internal) constant folding interfaces for LLVM. These
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// interfaces are used by the ConstantExpr::get* methods to automatically fold
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// constants when possible.
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//
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// These operators may return a null object if I don't know how to perform the
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// specified operation on the specified constant types.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CONSTANTFOLDING_H
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#define CONSTANTFOLDING_H
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#include <vector>
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namespace llvm {
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class Value;
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class Constant;
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class Type;
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// Constant fold various types of instruction...
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Constant *ConstantFoldCastInstruction(const Constant *V, const Type *DestTy);
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Constant *ConstantFoldSelectInstruction(const Constant *Cond,
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const Constant *V1,
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const Constant *V2);
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Constant *ConstantFoldBinaryInstruction(unsigned Opcode, const Constant *V1,
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const Constant *V2);
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Constant *ConstantFoldGetElementPtr(const Constant *C,
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const std::vector<Value*> &IdxList);
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} // End llvm namespace
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#endif
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