Fix test/CodeGen/Generic/vector-constantexpr.ll

llvm-svn: 36123
diff --git a/llvm/lib/VMCore/Function.cpp b/llvm/lib/VMCore/Function.cpp
index 5176a05..6853173 100644
--- a/llvm/lib/VMCore/Function.cpp
+++ b/llvm/lib/VMCore/Function.cpp
@@ -226,6 +226,8 @@
 ///
 unsigned Function::getIntrinsicID(bool noAssert) const {
   const ValueName *ValName = this->getValueName();
+  if (!ValName)
+    return 0;
   unsigned Len = ValName->getKeyLength();
   const char *Name = ValName->getKeyData();