Re: How to add an additional option to dg-compile and dg-run

[Andrew Pinski]

On Mon, Jul 29, 2024 at 1:20 AM Thomas Koenig <tkoe...@netcologne.de> wrote:
>
> Hi,
>
> for the fortran-unsigned branch, I would like to be able to run all
> existing Fortran tests also with -funsigned, to make sure the option
> does not break anything on existing code.
>
> Question is: How?
>
> I came as far as
>
> $ make check-fortran RUNTESTFLAGS="--target_board=unix/-funsigned"
>
> but that causes testsuite failures because C does not recognize
> the option.
>
> Any other possibilites?

Yes you could add it into the list of Torture options that
gfortran-dg-runtest uses.
Something like:
```
diff --git a/gcc/testsuite/lib/gfortran-dg.exp
b/gcc/testsuite/lib/gfortran-dg.exp
index fcba95dc396..0589d507382 100644
--- a/gcc/testsuite/lib/gfortran-dg.exp
+++ b/gcc/testsuite/lib/gfortran-dg.exp
@@ -153,6 +153,12 @@ proc gfortran-dg-runtest { testcases flags
default-extra-flags } {
        } else {
            set option_list [list { -O } ]
        }
+       set old_option_list  $option_list
+       set option_list {}
+       foreach option $option_list {
+         lappend option_list $option
+         lappend option_list "$option -funsigned"
+       }

        set nshort [file tail [file dirname $test]]/[file tail $test]
        list-module-names $test
```
should work but I am not 100% I got the TCL syntax correct.

Thanks,
Andrew Pinski

>
> Best regards
>
>         Thomas