[Bug tree-optimization/92162] [10 Regression] ICE in vect_create_epilog_for_reduction, at tree-vect-loop.c:4252

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92162

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
Another test case seems to be:

double *a;
b() {
  int c, d = 1;
  for (; c < b; c++)
    for (; c < b; c++)
      if (a[c])
        d = 0;
  if (d)
    e();
}

-O3 required for this case. Bug seems to start sometime between
revision 277050 and 277010.