https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69783
--- Comment #1 from Yuri Rumyantsev <ysrumyan at gmail dot com> --- Created attachment 37671 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37671&action=edit test-case to reproduce It needs to be compiled with -Ofast -funroll-loops on x86-64
