Index: lib/Support/SmallVector.cpp
===================================================================
--- lib/Support/SmallVector.cpp
+++ lib/Support/SmallVector.cpp
@@ -33,6 +33,7 @@
     // If this wasn't grown from the inline copy, grow the allocated space.
     NewElts = realloc(this->BeginX, NewCapacityInBytes);
   }
+  assert(NewElts && "Out of memory");
 
   this->EndX = (char*)NewElts+CurSizeBytes;
   this->BeginX = NewElts;