[Bug tree-optimization/91837] Wrong code with -ftree-loop-vectorize and -march=skylake-avx512 on some Intel machines

[dan.cooke89 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91837

--- Comment #3 from Daniel Cooke <dan.cooke89 at gmail dot com> ---
I tried replicating the issue on a CentOS machine (AWS EC2) with the exact same
CPU and got the correct output. However, I just fired up a fresh AWS EC2
instance running Ubuntu and I can replicate the bug again. Is it possible that
the bug is CPU *and* OS specific?