[Bug rtl-optimization/91333] [9/10 Regression] suboptimal register allocation for inline asm

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91333

--- Comment #16 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to rsandifo@gcc.gnu.org from comment #15)
> (In reply to Jakub Jelinek from comment #14)
> > I think what matters is whether the new asm for those is the same or better
> > than before.  If the tests hardcode particular RA decisions, they'll
> > obviously FAIL when something in the RA changes.
> 
> The kind of change is from:
> 
>         mov     z2.d, x0
>         movprfx z0, z1
>         uabd    z0.d, p0/m, z0.d, z2.d
>         ret
> 
> to:
> 
>         mov     z0.d, x0
>         mov     z2.d, z0.d
>         movprfx z0, z1
>         uabd    z0.d, p0/m, z0.d, z2.d
>         ret
> 
> so this is a genuine regression.

Hi, Richard.  Could you write me what options and test (I guess it is
pr91333.c) you used.