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From: "rsandifo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/94398] ICE: in vectorizable_load, at tree-vect-stmts.c:9173
Date: Mon, 30 Mar 2020 09:56:42 +0000	[thread overview]
Message-ID: <bug-94398-4-wkRcgmea54@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-94398-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94398

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2020-03-30
             Status|UNCONFIRMED                 |NEW

--- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
(In reply to rsandifo@gcc.gnu.org from comment #3)
> (In reply to Richard Biener from comment #2)
> > But the ICE happens because the result from the function at transform time
> > does not match that at analysis time.
> > 
> > Richard?
> 
> Looks like we're trying to compute:
> 
>   alignment_support_scheme
>     = vect_supportable_dr_alignment (first_dr_info, false);
>   gcc_assert (alignment_support_scheme);
> 
> even for VMAT_GATHER_SCATTER, which always accesses individual
> elements.  Guess we should set alignment_support_scheme to
> dr_unaligned_supported instead of calling
> vect_supportable_dr_alignment.

...in the gather/scatter case only, of course :-)

  parent reply	other threads:[~2020-03-30  9:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-30  9:22 [Bug tree-optimization/94398] New: " z.zhanghaijian at huawei dot com
2020-03-30  9:23 ` [Bug tree-optimization/94398] " z.zhanghaijian at huawei dot com
2020-03-30  9:31 ` rguenth at gcc dot gnu.org
2020-03-30  9:55 ` rsandifo at gcc dot gnu.org
2020-03-30  9:56 ` rsandifo at gcc dot gnu.org [this message]
2020-03-31 14:14 ` cvs-commit at gcc dot gnu.org
2021-11-29  8:45 ` pinskia at gcc dot gnu.org

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