1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Transforms/IPO/SimplifyLibCalls.cpp b/lib/Transforms/IPO/SimplifyLibCalls.cpp
index b7b5bee1eb..5900a0254f 100644
--- a/lib/Transforms/IPO/SimplifyLibCalls.cpp
+++ b/lib/Transforms/IPO/SimplifyLibCalls.cpp
@@ -1571,7 +1571,7 @@ public:
                               ConstantInt::get(V->getType(), 128), 
                               V->getName()+".isascii", CI);
     if (Cmp->getType() != CI->getType())
-      Cmp = new BitCastInst(Cmp, CI->getType(), Cmp->getName(), CI);
+      Cmp = new ZExtInst(Cmp, CI->getType(), Cmp->getName(), CI);
     return ReplaceCallWith(CI, Cmp);
   }
 } isasciiOptimizer;