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From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/115304] gcc.dg/vect/slp-gap-1.c FAILs
Date: Mon, 03 Jun 2024 09:18:58 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115304

--- Comment #3 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot U=
ni-Bielefeld.DE> ---
> --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
> It should only need vect32 - basically I assumed the target can compose t=
he
> 64bit vector from two 32bit elements.  But it might be that for this to w=
ork
> the loads would need to be aligned.
>
> What is needed is char-to-short unpacking and vector composition.  Either
> composing V2SImode or V8QImode from two V4QImode vectors.
>
> Does the following help?

Unfortunately not: makes no difference AFAICS.=