[Bug middle-end/81832] New: ICE in expand_LOOP_DIST_ALIAS, at internal-fn.c:2273

["antoine.balestrat at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81832

            Bug ID: 81832
           Summary: ICE in expand_LOOP_DIST_ALIAS, at internal-fn.c:2273
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: antoine.balestrat at gmail dot com
  Target Milestone: ---

Hello !
I'm using a freshly built version of GCC (gcc version 8.0.0 20170812) :

$ cat tested.c
int a, b, *c;
void d(void)
{
    int **e;
    for(;;)
        for(int f = 1; f <= 6; f++)
        {
            b = 0;
            if(a)
g:
                while(a++);
            if (**e);
            else
            {
                *c = a;
                goto g;
            }
        }
}

$ xgcc -O3 -c tested.c
during RTL pass: expand
tested.c: In function ‘d’:
tested.c:2:6: internal compiler error: in expand_LOOP_DIST_ALIAS, at
internal-fn.c:2273
 void d(void)
      ^
0x958807 expand_LOOP_DIST_ALIAS
        ../../srcdir/gcc/internal-fn.c:2273
0x724bf7 expand_call_stmt
        ../../srcdir/gcc/cfgexpand.c:2577
0x724bf7 expand_gimple_stmt_1
        ../../srcdir/gcc/cfgexpand.c:3585
0x724bf7 expand_gimple_stmt
        ../../srcdir/gcc/cfgexpand.c:3751
0x726957 expand_gimple_basic_block
        ../../srcdir/gcc/cfgexpand.c:5753
0x72cb7e execute
        ../../srcdir/gcc/cfgexpand.c:6360
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.