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[Bug middle-end/84200] [8 Regression] r256888 causes 30% performance regression of 519.lbm_r at -Ofast generic tuning on Zen
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 27 Mar 2018 10:27:04 +0000
- Subject: [Bug middle-end/84200] [8 Regression] r256888 causes 30% performance regression of 519.lbm_r at -Ofast generic tuning on Zen
- Auto-submitted: auto-generated
- References: <bug-84200-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84200
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |rguenth at gcc dot gnu.org
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
This is the strange alignment case, right? So we're not really understanding
what goes wrong here and we're merely unlucky, correct? Leaving at P3.