https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115256
--- Comment #3 from Levy Hsu <admin at levyhsu dot com> --- FYI we tried serval combinations, -funroll-loops didn't cause the issue, The link-time optimization -flto may caused the issue, we can pass with the option [-march=native -Ofast -funroll-loops]. But compiling with -flto makes it harder to minimize a test case. So we're still not clear what exactly the issue is.
