diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index 2949042..ee260e9 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -2133,6 +2133,9 @@
     if (ConstantArray *CA = dyn_cast<ConstantArray>(Init)) {
       for (User::op_iterator i = CA->op_begin(), e = CA->op_end(); i != e; ++i)
         Elts.push_back(cast<Constant>(*i));
+    } else if (ConstantVector *CV = dyn_cast<ConstantVector>(Init)) {
+      for (User::op_iterator i = CV->op_begin(), e = CV->op_end(); i != e; ++i)
+        Elts.push_back(cast<Constant>(*i));
     } else if (isa<ConstantAggregateZero>(Init)) {
       Elts.assign(NumElts, Constant::getNullValue(InitTy->getElementType()));
     } else {