From: Chris Lattner <sabre@nondot.org>
Date: Sat, 11 Mar 2006 20:17:08 +0000 (+0000)
Subject: add a note
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=c20995e070ff96da2d4698b67827a99f4a3bbb43;p=oota-llvm.git

add a note


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26708 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index d92f9c99062..f77fbc2eea7 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -117,6 +117,10 @@ it needs to turn the shifts into multiplies to get it.
 
 //===---------------------------------------------------------------------===//
 
+Reassociate should turn: X*X*X*X -> t=(X*X) (t*t) to eliminate a multiply.
+
+//===---------------------------------------------------------------------===//
+
 These two functions should generate the same code on big-endian systems:
 
 int g(int *j,int *l)  {  return memcmp(j,l,4);  }