Re: [PATCH] tree.def: Remove outdated comment on SAD_EXPR

[Richard Biener via Gcc-patches]

> Am 08.02.2023 um 10:17 schrieb Jakub Jelinek via Gcc-patches 
> <gcc-patches@gcc.gnu.org>:
> 
> Hi!
> 
> While looking at PR108692, I've noticed SAD_EXPR comment mentions that
> WIDEN_MINUS_EXPR is missing, which is not true anymore since r11-5160.
> 
> The following patch just removes that part of the comment.
> 
> Ok for trunk?

Ok

Richard 
> 
> 2023-02-08  Jakub Jelinek  <ja...@redhat.com>
> 
>    * tree.def (SAD_EXPR): Remove outdated comment about missing
>    WIDEN_MINUS_EXPR.
> 
> --- gcc/tree.def.jj    2023-01-02 09:32:28.118202450 +0100
> +++ gcc/tree.def    2023-02-08 10:05:52.795587292 +0100
> @@ -1341,8 +1341,7 @@ DEFTREECODE (WIDEN_SUM_EXPR, "widen_sum_
>    The first two arguments are of type t1 which should be integer.
>    The third argument and the result are of type t2, such that t2 is at least
>    twice the size of t1.  Like DOT_PROD_EXPR, SAD_EXPR (arg1,arg2,arg3) is
> -   equivalent to (note we don't have WIDEN_MINUS_EXPR now, but we assume its
> -   behavior is similar to WIDEN_SUM_EXPR):
> +   equivalent to:
>        tmp = WIDEN_MINUS_EXPR (arg1, arg2)
>        tmp2 = ABS_EXPR (tmp)
>        arg3 = PLUS_EXPR (tmp2, arg3)
> 
>    Jakub
>