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Merged into ValueNumbering.cpp

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3545 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2002-08-30 22:30:51 +00:00
parent 3e813b38f1
commit c447b4b791
1 changed files with 0 additions and 37 deletions
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include/llvm/Analysis/BasicValueNumbering.h
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//===- llvm/Analysis/BasicValueNumbering.h - Value #'ing Impl ---*- C++ -*-===//
//
// This file defines the default implementation of the Value Numbering
// interface, which uses the SSA value graph to find lexically identical
// expressions. This does not require any computation ahead of time, so it is a
// very fast default implementation.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_BASIC_VALUE_NUMBERING_H
#define LLVM_ANALYSIS_BASIC_VALUE_NUMBERING_H
#include "llvm/Analysis/ValueNumbering.h"
#include "llvm/Pass.h"
struct BasicValueNumbering : public FunctionPass, public ValueNumbering {
/// Pass Implementation stuff. This isn't much of a pass.
///
bool runOnFunction(Function &) { return false; }
/// getAnalysisUsage - Does not modify anything.
///
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
/// getEqualNumberNodes - Return nodes with the same value number as the
/// specified Value. This fills in the argument vector with any equal values.
///
/// This is where our implementation is.
///
virtual void getEqualNumberNodes(Value *V1,
std::vector<Value*> &RetVals) const;
};
#endif