https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106012
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-*-*
Component|tree-optimization |target
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to vincenzo Innocente from comment #3)
> Thanks for the suggestion.
>
> -fno-reciprocal-math does indeed inhibit scalar reciprocal instructions.
>
> NOT in vectorized loop though.
>
> see
>
> https://godbolt.org/z/9eMb4Tjee
For that you need -mno-recip as well ... (here it's the target expanding
the division). Maybe the target should take -fno-reciprocal-math as
enabling -mno-recip.
