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From: "rguenther at suse dot de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/106187] armhf: Miscompilation at O2 level (O0
 / O1 are working)
Date: Mon, 25 Jul 2022 11:03:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106187

--- Comment #43 from rguenther at suse dot de <rguenther at suse dot de> ---
On Mon, 25 Jul 2022, rearnsha at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106187
>=20
> --- Comment #42 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
> That would be unfortunate, it removes a lot of pointless loads in this ca=
se;
> and even the store it removes ought to be safe, if it weren't for the cor=
rupted
> alias info that results (the values /are/ the same).

We only need to scrap the case removing _stores_, removing loads is
all fine.  And the fix would, in this case, cause us to preserve
the store anyway (but I expect there are cases where we can detect
the store can be safely removed as well)=