From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 82471 invoked by alias); 4 Aug 2016 07:33:33 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 82444 invoked by uid 89); 4 Aug 2016 07:33:33 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.0 required=5.0 tests=AWL,BAYES_40,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy=andrey, Andrey, sk:segher@, sk:segher X-HELO: mail.ispras.ru Received: from mail.ispras.ru (HELO mail.ispras.ru) (83.149.199.45) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 04 Aug 2016 07:33:20 +0000 Received: from [10.10.3.52] (pluton2.ispras.ru [83.149.199.44]) by mail.ispras.ru (Postfix) with ESMTPSA id 3161954006B; Thu, 4 Aug 2016 10:33:18 +0300 (MSK) Subject: Re: [PATCH 6/9] sel-sched: Don't mess with register restores To: Segher Boessenkool , gcc-patches@gcc.gnu.org References: <38963d815ea81b55d5b8e2ed85f2b347aad21395.1470015604.git.segher@kernel.crashing.org> Cc: bschmidt@redhat.com From: Andrey Belevantsev Message-ID: Date: Thu, 04 Aug 2016 07:33:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Thunderbird/47.0 MIME-Version: 1.0 In-Reply-To: <38963d815ea81b55d5b8e2ed85f2b347aad21395.1470015604.git.segher@kernel.crashing.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2016-08/txt/msg00278.txt.bz2 Hello, On 01.08.2016 4:42, Segher Boessenkool wrote: > If selective scheduling copies register restores it confuses dwarf2cfi. > > 2016-06-07 Segher Boessenkool > > * sel-sched-ir.c (init_global_and_expr_for_insn): Don't copy > instructions with a REG_CFA_RESTORE note. OK from sel-sched POV. Best, Andrey > --- > gcc/sel-sched-ir.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c > index 83f813a..4a3984a 100644 > --- a/gcc/sel-sched-ir.c > +++ b/gcc/sel-sched-ir.c > @@ -3015,6 +3015,7 @@ init_global_and_expr_for_insn (insn_t insn) > /* TRAP_IF though have an INSN code is control_flow_insn_p (). */ > || control_flow_insn_p (insn) > || volatile_insn_p (PATTERN (insn)) > + || find_reg_note (insn, REG_CFA_RESTORE, NULL) > || (targetm.cannot_copy_insn_p > && targetm.cannot_copy_insn_p (insn))) > force_unique_p = true; >