[Bug analyzer/98628] [11 Regression] ICE in get_or_create_cluster, at analyzer/store.cc:2040 since r11-6513-gbe6c485b24f2b47a

["marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98628

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2021-01-11
                 CC|                            |marxin at gcc dot gnu.org
            Summary|internal compiler error: in |[11 Regression] ICE in
                   |get_or_create_cluster, at   |get_or_create_cluster, at
                   |analyzer/store.cc:2040      |analyzer/store.cc:2040
                   |                            |since
                   |                            |r11-6513-gbe6c485b24f2b47a
     Ever confirmed|0                           |1

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:

$ cat misc.i
struct chanset_t help_subst_chan;
struct chanset_t *help_subst_chan_0_0;
struct chanset_t {
  struct chanset_t *next;
  char dname[];
} help_subst() {
  char *writeidx;
  for (;; help_subst_chan = *help_subst_chan_0_0) {
    my_strcpy(help_subst_chan.next->dname);
    if (help_subst_chan_0_0) {
      writeidx++;
      *writeidx++ = ' ';
    }
  }
}