This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/83735] [8 Regression] generating unaligned store to stack with vmovaps
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 08 Jan 2018 13:53:23 +0000
- Subject: [Bug target/83735] [8 Regression] generating unaligned store to stack with vmovaps
- Auto-submitted: auto-generated
- References: <bug-83735-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83735
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
BTW, -O3 -mavx512bw ins't needed, e.g. -O3 -mavx reproduces it too.
The function doesn't really need DRAP or stack realignment, but because
stack_alignment_needed is 128, better should make sure that sp is properly
aligned. Can't reproduce with a function other than main though, even with
-fno-omit-frame-pointer.