From: Chris Lattner <sabre@nondot.org>
Date: Sun, 21 May 2006 03:57:07 +0000 (+0000)
Subject: Add a note
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e8263e64371a02572ae5073cb4affe24ac35788e;p=oota-llvm.git

Add a note


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28424 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 24fb24d3867..807768002b5 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -239,3 +239,15 @@ ulong %bar() {
 it should be extended to do so.
 
 //===---------------------------------------------------------------------===//
+
+Turn this into a single byte store with no load (the other 3 bytes are
+unmodified):
+
+void %test(uint* %P) {
+	%tmp = load uint* %P
+        %tmp14 = or uint %tmp, 3305111552
+        %tmp15 = and uint %tmp14, 3321888767
+        store uint %tmp15, uint* %P
+        ret void
+}
+