[Bug tree-optimization/31169] Bootstrap comparison error at revision 122821

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #17 from dave at hiauly1 dot hia dot nrc dot ca  2007-03-16 02:07 -------
Subject: Re:  Bootstrap comparison error at revision 122821

> Did you try reverting the last hunk:
> 
> @@ -1816,7 +1833,8 @@
>          the new range.  */
> 
>        /* Divisions by zero result in a VARYING value.  */
> -      if (code != MULT_EXPR
> +      if ((code != MULT_EXPR
> +          && code != RSHIFT_EXPR)
>           && (vr0.type == VR_ANTI_RANGE || range_includes_zero_p (&vr1)))
>         {
>           set_value_range_to_varying (vr);

FWIW, this is the hunk that introduced the failure.

Dave


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31169