From 3e4e6974f2c1eccf031e3c89e114de455818ef94 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 30 Aug 2002 20:27:48 +0000
Subject: [PATCH] Initial version of LoadValueNumbering interface

llvm-svn: 3539
---
 .../llvm/Analysis/LoadValueNumbering.h        | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 llvm/include/llvm/Analysis/LoadValueNumbering.h

diff --git a/llvm/include/llvm/Analysis/LoadValueNumbering.h b/llvm/include/llvm/Analysis/LoadValueNumbering.h
new file mode 100644
index 000000000000..cca4beab1aaf
--- /dev/null
+++ b/llvm/include/llvm/Analysis/LoadValueNumbering.h
@@ -0,0 +1,24 @@
+//===- llvm/Analysis/LoadValueNumbering.h - Value # Load Insts --*- C++ -*-===//
+//
+// This file defines a value numbering pass that value #'s load instructions.
+// To do this, it finds lexically identical load instructions, and uses alias
+// analysis to determine which loads are guaranteed to produce the same value.
+//
+// This pass builds off of another value numbering pass to implement value
+// numbering for non-load instructions.  It uses Alias Analysis so that it can
+// disambiguate the load instructions.  The more powerful these base analyses
+// are, the more powerful the resultant analysis will be.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
+#define LLVM_ANALYSIS_LOAD_VALUE_NUMBERING_H
+
+class Pass;
+
+/// createLoadValueNumberingPass - Create and return a new pass that implements
+/// the ValueNumbering interface.
+///
+Pass *createLoadValueNumberingPass();
+
+#endif