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Removed unused, useless header file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13757 91177308-0d34-0410-b5e6-96231b3b80d8
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//===-- llvm/Support/ValueHolder.h - Wrapper for Value's --------*- 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 class defines a simple subclass of User, which keeps a pointer to a
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// Value, which automatically updates when Value::replaceAllUsesWith is called.
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// This is useful when you have pointers to Value's in your pass, but the
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// pointers get invalidated when some other portion of the algorithm is
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// replacing Values with other Values.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_VALUEHOLDER_H
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#define LLVM_SUPPORT_VALUEHOLDER_H
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#include "llvm/User.h"
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namespace llvm {
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struct ValueHolder : public User {
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ValueHolder(Value *V = 0);
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ValueHolder(const ValueHolder &VH) : User(VH.getType(), Value::TypeVal) {
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Operands.push_back(Use(VH.get(), this));
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}
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// Getters...
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Value *get() const { return (Value*)getOperand(0); }
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operator Value*() const { return (Value*)getOperand(0); }
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// Setters...
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const ValueHolder &operator=(Value *V) {
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setOperand(0, V);
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return *this;
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}
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const ValueHolder &operator=(ValueHolder &VH) {
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setOperand(0, VH);
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return *this;
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}
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virtual void print(std::ostream& OS) const {
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OS << "ValueHolder";
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}
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};
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} // End llvm namespace
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#endif
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