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From: "qing.zhao at oracle dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug middle-end/102285] New flag -ftrivial-auto-var-init=zero causes
 many crashes in the testsuite
Date: Fri, 10 Sep 2021 23:10:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102285

--- Comment #4 from Qing Zhao <qing.zhao at oracle dot com> ---
> On Sep 10, 2021, at 5:34 PM, pinskia at gcc dot gnu.org <gcc-bugzilla@gcc=
.gnu.org> wrote:
>=20
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102285
>=20
> --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
> I wonder if most of these were fixed by r12-3447-g79f488de3036a

There are two patches by Richard Biener last night to fix two bugs:

commit 79f488de3036a4a4be08df2a782e6eb02419db19
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Sep 10 12:28:09 2021 +0200

    middle-end/102273 - avoid ICE with auto-init and nested functions

    This refactors expansion to consider non-decl LHS.  I suspect
    the is_val argument is not needed.

commit 1dae802b685937b1dc52e49d0641c75f3186ba14
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Sep 10 10:17:24 2021 +0200

    middle-end/102269 - avoid auto-init of empty types

    This avoids initializing empty types for which we'll eventually
    leave a .DEFERRED_INIT call without a LHS.

I checked the failed testing cases listed by David, many of them have empty
types.

So, I guess that the above two patches might already fix these failures.


>=20
> --=20
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