From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-patches-return-403718-listarch-gcc-patches=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 50687 invoked by alias); 23 Jul 2015 20:31:23 -0000
Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-patches.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-patches/>
List-Post: <mailto:gcc-patches@gcc.gnu.org>
List-Help: <mailto:gcc-patches-help@gcc.gnu.org>
Sender: gcc-patches-owner@gcc.gnu.org
Received: (qmail 50674 invoked by uid 89); 23 Jul 2015 20:31:23 -0000
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2
X-HELO: gate.crashing.org
Received: from gate.crashing.org (HELO gate.crashing.org) (63.228.1.57) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA encrypted) ESMTPS; Thu, 23 Jul 2015 20:31:22 +0000
Received: from gate.crashing.org (localhost.localdomain [127.0.0.1])	by gate.crashing.org (8.14.1/8.13.8) with ESMTP id t6NKVDo7014962;	Thu, 23 Jul 2015 15:31:13 -0500
Received: (from segher@localhost)	by gate.crashing.org (8.14.1/8.14.1/Submit) id t6NKVCWf014959;	Thu, 23 Jul 2015 15:31:12 -0500
Date: Thu, 23 Jul 2015 20:35:00 -0000
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Alexandre Oliva <aoliva@redhat.com>
Cc: Richard Biener <richard.guenther@gmail.com>, Jeff Law <law@redhat.com>,        GCC Patches <gcc-patches@gcc.gnu.org>,        Christophe Lyon <christophe.lyon@linaro.org>,        David Edelsohn <dje.gcc@gmail.com>,        Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: [PR64164] drop copyrename, integrate into expand
Message-ID: <20150723203112.GB27818@gate.crashing.org>
References: <orwpzcv2a2.fsf@livre.home> <CAFiYyc38hY5jfVx-92f1i2aZKMVynPt1YrdWCObX3T45a_2V3Q@mail.gmail.com> <ork2u0imrg.fsf@free.home> <CAFiYyc1FQkwXDo0pKXkLmc-pgN9zAG2_+ru0TQsVQRWgVUqR1w@mail.gmail.com> <ory4ifhkkg.fsf@free.home> <ora8ut3oh6.fsf@livre.home> <CAFiYyc3Dq3CycGg=YoD+eCbSBkPUHfpG-o5OhBag4Da8L3SwTQ@mail.gmail.com> <orio9cw10j.fsf@livre.home> <CAFiYyc3k9xh_6RGbTdHYOJ-aEmUWVeFRoWy=YzCHFDNSdtTXCA@mail.gmail.com> <orwpxqvqnp.fsf@livre.home>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <orwpxqvqnp.fsf@livre.home>
User-Agent: Mutt/1.4.2.3i
X-IsSubscribed: yes
X-SW-Source: 2015-07/txt/msg01979.txt.bz2

On Thu, Jul 23, 2015 at 12:29:14PM -0300, Alexandre Oliva wrote:
> Yeah.  Thanks, I've tested it with this change, and I'm now checking
> this in (full patch first; adjusted incremental patch at the end):

Unfortunately it causes about a thousand test fails on powerpc64-linux
(at least, it seems to be this patch, I haven't actually checked).

Some representative backtraces:


/home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr54713-1.c: In function 'f1':
/home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr54713-1.c:13:1: internal compiler error: in expand_one_stack_var_1, at cfgexpand.c:1221
0x1030eae7 expand_one_stack_var_1
	/home/segher/src/gcc/gcc/cfgexpand.c:1221
0x10320a23 expand_one_ssa_partition
	/home/segher/src/gcc/gcc/cfgexpand.c:1295
0x10320a23 expand_used_vars
	/home/segher/src/gcc/gcc/cfgexpand.c:1940
0x10322ea3 execute
	/home/segher/src/gcc/gcc/cfgexpand.c:6084


/home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr39928-1.c: In function 'vq_nbest':
/home/segher/src/gcc/gcc/testsuite/gcc.c-torture/compile/pr39928-1.c:6:1: internal compiler error: in emit_move_insn, at expr.c:3552
0x1046f587 emit_move_insn(rtx_def*, rtx_def*)
	/home/segher/src/gcc/gcc/expr.c:3551
0x104daa67 assign_parm_setup_reg
	/home/segher/src/gcc/gcc/function.c:3322
0x104dd063 assign_parms
	/home/segher/src/gcc/gcc/function.c:3766
0x104e0aa7 expand_function_start(tree_node*)
	/home/segher/src/gcc/gcc/function.c:5192
0x10322f07 execute
	/home/segher/src/gcc/gcc/cfgexpand.c:6105


I have the full testsuite logs if you want them.


Segher