Index: lib/Driver/Tools.cpp
===================================================================
--- lib/Driver/Tools.cpp
+++ lib/Driver/Tools.cpp
@@ -5126,6 +5126,7 @@
     break;
   case types::TY_PP_Asm:
     CmdArgs.push_back("-S");
+    break;
   case types::TY_Nothing:
     CmdArgs.push_back("-fsyntax-only");
     break;
Index: test/Driver/gfortran.f90
===================================================================
--- test/Driver/gfortran.f90
+++ test/Driver/gfortran.f90
@@ -251,3 +251,10 @@
 !
 ! CHECK-PR22234-NOT: clang: error: invalid output type
 ! CHECK-PR22234: "-fsyntax-only"
+!
+! Regression test for the bug introduced with PR22234 fix.
+! Make sure -fsyntax-only is not passed to gfortran during normal compilation.
+!
+! RUN: %clang -no-canonical-prefixes -target i386-linux -### %s -o %t 2>&1 \
+! RUN: | FileCheck %s --check-prefix=CHECK-PR22234-R
+! CHECK-PR22234-R-NOT: "-fsyntax-only"