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[Bug tree-optimization/84737] [8 Regression] 20% degradation in CPU2000 172.mgrid starting with r256888
- From: "pthaugen at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 07 Mar 2018 20:01:38 +0000
- Subject: [Bug tree-optimization/84737] [8 Regression] 20% degradation in CPU2000 172.mgrid starting with r256888
- Auto-submitted: auto-generated
- References: <bug-84737-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84737
--- Comment #3 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #1)
> Isn't that dup of 84149? Can you please tweak --param ipa-cp-eval-threshold
> to value to 200, 300, 400? Can you please attach -fdump-ipa-cp-details file?
I tried the param with the 3 different values and none made any difference to
execution time.