optimization/9357: [3.2/3.3/3.4 regression] SegFault with -fssa -funroll-loops -fprofile-arcs

[Janis Johnson]

The regression showed up with this patch:

Sat Oct 27 12:12:09 CEST 2001  Jan Hubicka  <jh@suse.cz>

        * cfgcleanup.c (merge_blocks_move_predecessor_nojumps,
        merge_blocks_move_successors_nojumps): Set BB_UPDATE_LIFE.
        (merge_blocks): Properly udpate life after making edge nonfallthru.
        * cfgrtl.c (merge_blocks_nomove): Update global_live_at_end.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9357