https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91154

--- Comment #20 from rguenther at suse dot de <rguenther at suse dot de> ---
On Wed, 7 Aug 2019, segher at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91154
> 
> Segher Boessenkool <segher at gcc dot gnu.org> changed:
> 
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |segher at gcc dot gnu.org
> 
> --- Comment #19 from Segher Boessenkool <segher at gcc dot gnu.org> ---
> So how does this cause 12% degradation (20% by some other measurements)
> on power9?  Pretty much everything is the *opposite* way around for us:
> we do have cheap conditional moves, we do prefer integer registers.

Might be that speculating the jump (which is very very well predicted)
is still a lot faster than the conditional move.

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