https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66142
--- Comment #27 from Yuri Rumyantsev <ysrumyan at gmail dot com> --- Created attachment 37940 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37940&action=edit test-case to reproduce Need to be compiled with -Ofast -mavx2 -fopenmp options.