diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -1821,7 +1821,8 @@
           else
             os << "host";
           os << " (";
-          os << TC->getTriple().normalize();
+          if (TC)
+            os << TC->getTriple().normalize();
 
           if (BoundArch)
             os << ":" << BoundArch;