[PATCH] Clear BB_VISITED in bb-reorder

[Andrew Pinski]

On Mon, Oct 17, 2016 at 5:26 AM, Richard Biener <rguenther@suse.de> wrote:
>
> $subject, applied as obvious.

I think you should do the same for the vectorizer too.  I noticed that
when testing the patch for loop splitting.

Thanks,
Andrew

>
> Richard.
>
> 2016-10-17  Richard Biener  <rguenther@suse.de>
>
>         * bb-reorder.c (reorder_basic_blocks_simple): Clear BB_VISITED
>         before using it.
>
> Index: gcc/bb-reorder.c
> ===================================================================
> --- gcc/bb-reorder.c    (revision 241228)
> +++ gcc/bb-reorder.c    (working copy)
> @@ -2355,7 +2355,10 @@ reorder_basic_blocks_simple (void)
>       To start with, everything points to itself, nothing is assigned yet.  */
>
>    FOR_ALL_BB_FN (bb, cfun)
> -    bb->aux = bb;
> +    {
> +      bb->aux = bb;
> +      bb->flags &= ~BB_VISITED;
> +    }
>
>    EXIT_BLOCK_PTR_FOR_FN (cfun)->aux = 0;
>