https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63404
--- Comment #1 from Andi Kleen <andi-gcc at firstfloor dot org> --- Created attachment 33607 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33607&action=edit not quite yet runnable test case In the real execution blk_flush_complete_seq always ends up in the default case in the switch and crashes.
