https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121020
--- Comment #7 from Pengfei Li <Pengfei.Li2 at arm dot com> --- Hi Sam, sorry about the issue. I just followed your build steps (make command revised) but didn't reproduce it. I also tried valgrind but it exited with no error. I was trying on an Intel CPU with avx512. Could you share more about your platform?