[Bug rtl-optimization/68755] [5 Regression] wrong code at -O3 on x86_64-linux-gnu (in 32-bit mode)

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68755

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Zhendong Su from comment #0)
>
> int
> main ()
> {
>   char e[5];
          ^^^^
>   for (; c < 5; c++)
>     {
>       while (a)
>         {
>           b = d;
>           if (e[8000])
                ^^^^^^^^^ Is this valid C code?
>             continue;
>           break;
>         }
>       if (b)
>         printf ("%d", a);
>     }
>   return 0;
> }