http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58721
--- Comment #5 from Yuri Rumyantsev <ysrumyan at gmail dot com> --- Created attachment 31348 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31348&action=edit test-case to reproduce It need to be compiled with -Ofast -flto options to reproduce.