commit 63afc08ca7c8a511d4dcf5c288b4204427cc4e1f
author Nuno Lopes <nunoplopes@sapo.pt> Fri May 18 00:14:36 2012 +0000
committer Nuno Lopes <nunoplopes@sapo.pt> Fri May 18 00:14:36 2012 +0000
tree 2787faa0309a2bc0c70d9a4bb889e893b64de086
parent badd100c260da2cb4ec6f82e1c68c7e203082511

fix corner case in ConstantRange::intersectWith().
this fixes the missed optimization I was seeing in the CorrelatedValuePropagation pass

llvm-svn: 157032

llvm/lib/Support/ConstantRange.cpp

diff --git a/llvm/lib/Support/ConstantRange.cpp b/llvm/lib/Support/ConstantRange.cpp
index 5206cf1..e7d8483 100644
--- a/llvm/lib/Support/ConstantRange.cpp
+++ b/llvm/lib/Support/ConstantRange.cpp
@@ -288,7 +288,7 @@
       if (CR.Upper.ult(Upper))
         return CR;
 
-      if (CR.Upper.ult(Lower))
+      if (CR.Upper.ule(Lower))
         return ConstantRange(CR.Lower, Upper);
 
       if (getSetSize().ult(CR.getSetSize()))