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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
//===- llvm/Analysis/LoadValueNumbering.h - Value # Load Insts --*- 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 a value numbering pass that value #'s load instructions.
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// To do this, it finds lexically identical load instructions, and uses alias
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// analysis to determine which loads are guaranteed to produce the same value.
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//
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// This pass builds off of another value numbering pass to implement value
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// numbering for non-load instructions. It uses Alias Analysis so that it can
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// disambiguate the load instructions. The more powerful these base analyses
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// are, the more powerful the resultant analysis will be.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
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#define LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
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namespace llvm {
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class FunctionPass;
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/// createLoadValueNumberingPass - Create and return a new pass that implements
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/// the ValueNumbering interface.
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///
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FunctionPass *createLoadValueNumberingPass();
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} // End llvm namespace
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#endif
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