From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 7C2EE3858C3A; Thu, 20 Jul 2023 04:20:17 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7C2EE3858C3A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1689826817;
	bh=dYOQtAiml2STjKu0kMLJFGjBuV+nGSqiLMcWUBsiDVw=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=Oxoks96Nq3IIi7P6jAqhK3RPJ0jSC5vjs8ZZulyi1AS/lq5RqspJ0UCVajB/VsFhf
	 M7w9QmItxJOYYpGHvN751eoITHu3uZdc/qdSkZrM1vZ7Yzk3wtc3ibadk0jI5FnM0I
	 DUuDxhHRtkCc+gbg3AWttLJcVa7shGfHyN9iQn8E=
From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/110744] [14 regression] gcc.dg/tree-ssa/pr84512.c fails
 after r14-2267-gb8806f6ffbe72
Date: Thu, 20 Jul 2023 04:20:17 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: other
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: linkw at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: linkw at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-110744-4-sf6tEgVv81@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-110744-4@http.gcc.gnu.org/bugzilla/>
References: <bug-110744-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110744

--- Comment #5 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Li Pan from comment #2)
> Hi there,
>=20
> Just try to reproduce this bug with powerPC cross compiler (sorry we don't
> have a real powerPC) with the below options. Unfortunately, I failed to
> reproduce this bug as above mentioned.

Cfarm (https://cfarm.tetaneutral.net/) recently gets one Power10 machine, y=
ou
can have a try there. :) But yeah, for this kind of compilation issue, cross
compiler is normally enough.

>=20
> Could you please help to take a look if there is something missing or
> incorrect?
>=20
> 1. Build cross compiler
>=20
> ../configure \
>   --target=3Dpowerpc-unknown-elf \

I can reproduce it with --target=3Dpowerpc64le-unknown-linux-gnu.

powerpc is 32bit Power, unfortunately lxvl and stxvl (vector with length)
hardware instructions require 64bit GPR (for holding length in some of its =
high
bits), so partial vector is not enabled there.

>   --prefix=3D${INSTALL_DIR} \
>   --disable-shared \
>   --enable-threads \
>   --enable-tls \
>   --enable-languages=3Dc,c++ \
>   --with-system-zlib \
>   --with-newlib \
>   --disable-libmudflap \
>   --disable-libssp \
>   --disable-libquadmath \
>   --disable-libgomp \
>   --enable-nls \
>   --disable-tm-clone-registry \
>   --enable-multilib \
>   --src=3D`pwd`/../ \
>   --enable-werror \
>=20
> make -j $(nproc) all-gcc && make install-gcc
>=