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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/101009] [10/11/12 Regression] wrong code with "-O3 -fno-tree-sra"
Date: Fri, 11 Jun 2021 07:33:06 +0000	[thread overview]
Message-ID: <bug-101009-4-2iccQfQmJB@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-101009-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101009

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #7)
> @@ -5435,7 +5437,7 @@ build_classic_dist_vector (struct
> data_dependence_relation
>  *ddr,
>             save_dist_v (ddr, save_v);
>         }
>      }
> -  else
> +  else if (DDR_NB_LOOPS (ddr) > 1)
>      {
>        /* There is a distance of 1 on all the outer loops: Example:
>          there is a dependence of distance 1 on loop_1 for the array A.

I suppose this one would re-introduce the problem when we add an outer loop
(and include that in dependence analysis).  So I'm testing the other one now.

  parent reply	other threads:[~2021-06-11  7:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10  8:17 [Bug tree-optimization/101009] New: " suochenyao at 163 dot com
2021-06-10  9:28 ` [Bug tree-optimization/101009] [12 Regression] " rguenth at gcc dot gnu.org
2021-06-10  9:40 ` rguenth at gcc dot gnu.org
2021-06-10 13:38 ` jakub at gcc dot gnu.org
2021-06-11  6:08 ` rguenth at gcc dot gnu.org
2021-06-11  6:23 ` rguenth at gcc dot gnu.org
2021-06-11  6:41 ` rguenth at gcc dot gnu.org
2021-06-11  7:19 ` rguenth at gcc dot gnu.org
2021-06-11  7:21 ` [Bug tree-optimization/101009] [10/11/12 " rguenth at gcc dot gnu.org
2021-06-11  7:33 ` rguenth at gcc dot gnu.org [this message]
2021-06-11  9:15 ` jakub at gcc dot gnu.org
2021-06-11  9:26 ` cvs-commit at gcc dot gnu.org
2021-06-11  9:27 ` [Bug tree-optimization/101009] [10/11 " rguenth at gcc dot gnu.org
2021-06-16 13:12 ` cvs-commit at gcc dot gnu.org
2021-09-06 10:18 ` [Bug tree-optimization/101009] [10 " cvs-commit at gcc dot gnu.org
2021-09-06 10:18 ` rguenth at gcc dot gnu.org

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