[Bug libfortran/78379] Processor-specific versions for matmul

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78379

--- Comment #33 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to Thomas Koenig from comment #32)
> Created attachment 41406 [details]
> Additional files for the previous patch
> 
> Here are the new files for the patch.

Well I tried to apply the patch and test without using maintainer mode.

Running my tests in the debugger, breaking and dis-assembly shows xmmm
instructions and calls to matmul_vanilla so I think I need to enable maintainer
mode and rebuild, or something is not quite right.

Suggestions?