From: Chris Lattner <sabre@nondot.org>
Date: Fri, 30 Aug 2002 20:27:48 +0000 (+0000)
Subject: Initial version of LoadValueNumbering interface
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=d7f672538a3a018851fe93a416c4917c3960c285;p=oota-llvm.git

Initial version of LoadValueNumbering interface


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3539 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Analysis/LoadValueNumbering.h b/include/llvm/Analysis/LoadValueNumbering.h
new file mode 100644
index 00000000000..cca4beab1aa
--- /dev/null
+++ b/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