[Bug tree-optimization/67794] New: internal compiler error: Segmentation fault

["jamrial at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67794

            Bug ID: 67794
           Summary: internal compiler error: Segmentation fault
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jamrial at gmail dot com
  Target Milestone: ---

Created attachment 36432
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36432&action=edit
Preprocessed source as generated by -freport-bug

In file included from /home/jamrial/ffmpeg/libavcodec/motion_est.c:295:0:
/home/jamrial/ffmpeg/libavcodec/motion_est_template.c: In function
âsab_diamond_search.isra.3â:
/home/jamrial/ffmpeg/libavcodec/motion_est_template.c:679:12: internal compiler
error: Segmentation fault
 static int sab_diamond_search(MpegEncContext * s, int *best, int dmin,
            ^
0xabb4ff crash_signal
     /home/jamrial/gcc-svn/gcc/toplev.c:353
0xbce129 tree_check(tree_node const*, char const*, int, char const*, tree_code)
     /home/jamrial/gcc-svn/gcc/tree.h:3116
0xbce129 has_zero_uses
     /home/jamrial/gcc-svn/gcc/ssa-iterators.h:381
0xbce129 coalesce_with_default
     /home/jamrial/gcc-svn/gcc/tree-ssa-coalesce.c:1003
0xbce129 create_outofssa_var_map
     /home/jamrial/gcc-svn/gcc/tree-ssa-coalesce.c:1202
0xbcedd0 coalesce_ssa_name()
     /home/jamrial/gcc-svn/gcc/tree-ssa-coalesce.c:1736
0xb628fe remove_ssa_form
     /home/jamrial/gcc-svn/gcc/tree-outof-ssa.c:984
0xb628fe rewrite_out_of_ssa(ssaexpand*)
     /home/jamrial/gcc-svn/gcc/tree-outof-ssa.c:1208
0x701490 execute
     /home/jamrial/gcc-svn/gcc/cfgexpand.c:6100


gcc version 6.0.0 20151001 on x86_64-pc-linux-gnu.
This regression was apparently introduced sometime in the last eight days.