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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109780] [12/13/14 Regression] csmith: runtime crash with
 -O2 -march=znver1
Date: Thu, 29 Jun 2023 09:17:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109780

--- Comment #25 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Xi Ruoyao from comment #24)
> (In reply to H.J. Lu from comment #23)
> > Created attachment 55424 [details]
> > An updated patch
>=20
> Unfortunately Spidermonkey 115 still crashes even with the patch (and -O3
> -march=3Dtigerlike -mtune=3Dtigerlake -fno-exceptions).  The problem seem=
s an
> unaligned stack slot is assigned for an object of a 512-bit aligned class=
.=20
> Then the pointer to the object is passed to another function which stores
> into the object with 256-bit vmovdqu but the stack slot is only aligned to
> 128-bit in fact.  I'll try to reduce.

Nope, it seems a bug in mozilla code.=