https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78348
--- Comment #1 from Yuri Rumyantsev <ysrumyan at gmail dot com> --- Created attachment 40036 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40036&action=edit test-case to reproduce Must be compiled with -O3 option to reproduce.