[Bug middle-end/98173] -fno-tree-pta improves tfft2 benchmark by 50% on zen and -march=natie.

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98173

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unknown                     |11.0
           Keywords|                            |missed-optimization

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
PTA certainly can increase register pressure by means of more disambiguations
and thus more store-motion or PRE.  But you hardly can blame PTA for that ;)