[Bug tree-optimization/103223] [12 regression] Access attribute dropped when ipa-sra is applied

[admin at levyhsu dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103223

Levy <admin at levyhsu dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |admin at levyhsu dot com

--- Comment #10 from Levy <admin at levyhsu dot com> ---
Hi Jan

Just want provide a status report that this commit
ecdf414bd89e6ba251f6b3f494407139b4dbae0e seems to caused about 50% regression
when running multi-copy 548.exchange2_r with march_native_ofast_lto on
spec2017:

Xeon(R) Platinum 8358 (IceLake) (64C 128T 512G):
BenchMarks      Copies  RunTime1        RunTime2        Rate1   Rate2   Compare
548.exchange2_r 128     479     913     700     367     -47.57%

Xeon(R) Gold 6252 (CascadeLake) (48C 96T 192G)
BenchMarks      Copies  RunTime1        RunTime2        Rate1   Rate2   Compare
548.exchange2_r 96      643     1240    391     203     -48.08%

Best
Levy