[Bug testsuite/95720] [11 Regression] New dump output filename strategy invalidates tests

[aoliva at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95720

--- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
In case that's from some board config file, I suggest prefixing it with -Wl, so
that it doesn't count as an additional input.