On September 5, 2016 7:20:57 PM GMT+02:00, Jakub Jelinek <ja...@redhat.com> 
wrote:
>Hi!
>
>While it would be perhaps nice to pass explicit location_t in the
>target
>option handling code, there are hundreds of error/warning/sorry calls
>in lots of backends, and lots of those routines are used not just
>for the process_options time (i.e. command line options), but also for
>pragma GCC target and target option handling, so at least for the time
>being
>I think it is easier to just use UNKNOWN_LOCATION for the command line
>option diagnostics.
>
>Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

OK.

Thanks,
Richard.

>2016-09-05  Jakub Jelinek  <ja...@redhat.com>
>
>       PR middle-end/77475
>       * toplev.c (process_options): Temporarily set input_location
>       to UNKNOWN_LOCATION around targetm.target_option.override () call.
>
>--- gcc/toplev.c.jj    2016-09-03 11:18:55.000000000 +0200
>+++ gcc/toplev.c       2016-09-05 15:05:19.819995470 +0200
>@@ -1220,7 +1220,10 @@ process_options (void)
>   no_backend = lang_hooks.post_options (&main_input_filename);
> 
>   /* Some machines may reject certain combinations of options.  */
>+  location_t saved_location = input_location;
>+  input_location = UNKNOWN_LOCATION;
>   targetm.target_option.override ();
>+  input_location = saved_location;
> 
>   if (flag_diagnostics_generate_patch)
>       global_dc->edit_context_ptr = new edit_context ();
>
>       Jakub


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