[Bug preprocessor/78497] compiling with -save-temps adds -Wimplicit-fallthrough warnings

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78497

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-11-24
          Component|regression                  |preprocessor
     Ever confirmed|0                           |1

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  I'm also not sure we can do much about this... (inject a #pragma
diagnostic into preprocessed output?)