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[Bug rtl-optimization/78116] [7 regression] Performance drop after r241173 on avx512 target
- 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: Tue, 28 Feb 2017 16:10:41 +0000
- Subject: [Bug rtl-optimization/78116] [7 regression] Performance drop after r241173 on avx512 target
- Auto-submitted: auto-generated
- References: <bug-78116-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78116
--- Comment #12 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
Now that pr77536 has been fixed can this issue be closed? The first testcase no
longer has any loads from the stack in the loop, but does have 4 reg copies
that seem like they could get cleaned up (RA/reload issue as Bin mentioned?).
The second testcase is totally cleaned up.