This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/84419] [8 Regression] SPEC CPU2017/CPU2006 521/621, 527/627, 554/654, 445, 454, 481, 416 runfails after r256628 with march=skylake-avx512
- From: "alexander.nesterovskiy at intel dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 19 Feb 2018 15:54:35 +0000
- Subject: [Bug tree-optimization/84419] [8 Regression] SPEC CPU2017/CPU2006 521/621, 527/627, 554/654, 445, 454, 481, 416 runfails after r256628 with march=skylake-avx512
- Auto-submitted: auto-generated
- References: <bug-84419-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84419
--- Comment #5 from Alexander Nesterovskiy <alexander.nesterovskiy at intel dot com> ---
Yes, looks like the problem is with unaligned access (there is no fail in
reproducer when starting a loop with i=0).
It seems that your patch works - there are no runfails for reproducer, 445,
521, 527, 554 (tested on SPEC train workload).
I'll report upon finishing other benchmarks.