[Bug tree-optimization/84737] [8 Regression] 20% degradation in CPU2000 172.mgrid starting with r256888

[pthaugen at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84737

--- Comment #5 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
Created attachment 43601
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43601&action=edit
ipa-cp dump (r256887)

(In reply to Martin Liška from comment #4)
> Thank you, may I please ask you for the IPA CP dump file for not affected
> revision (r256887). Do I understand the numbers right that version with
> .resid_.constprop.1 is slower?

Dump attached. And yes, the version with resid_.constprop.1 is slower.

Also, I tried the patch from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84149#c5 and didn't see any
difference in execution time.