https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96337
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|rtl-optimization |ipa
Summary|GCC 10.2: twice as slow for |[10/11 Regression] GCC
|-O2 -march=x86-64 vs. GCC |10.2: twice as slow for -O2
|9.3/8.4 |-march=x86-64 vs. GCC
| |9.3/8.4
Keywords| |missed-optimization
CC| |hubicka at gcc dot gnu.org,
| |marxin at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, the workloads tested are not -O2 workloads but yes, distros likely still
will use -O2 for them unless the package itself overrides.
But IIRC the main change was that -O2 -fprofile-use no longer uses -O3
inliner settings, the settings for -O2 itself were not changed much? Honza?
