[Bug rtl-optimization/69161] [6 Regression] ICE in simplify_const_unary_operation, at simplify-rtx.c:1633

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69161

--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to ktkachov from comment #7)

You want to turn that back to at least valid C99 if that still reproduces the
issue:

> char a;
> b, c, d, e;
> fn1() {
>   int f = 0;
>   for (; f <= 4; f++) {
>     d = 0;
>     for (; d < 20; d++) {
>       long g = &c;
>       b &= (0 != g) > e;
>     }
>     e &= a;
>   }
> }

char a;
int b, c, d, e;

void
foo (void)
{
  int f;
  for (f = 0; f <= 4; f++)
    {
      for (d = 0; d < 20; d++)
        {
          long g = &c; // would it reproduce even with int *g = &c; ?
          b &= (0 != g) > e;
        }
      e &= a;
    }
}


}