From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 14D423839DE6 for ; Wed, 31 Aug 2022 09:39:06 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 14D423839DE6 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1661938745; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=OGk9pkfiIpNiiQj74u+SqouwUzoMjrpDnniFvVk+sHc=; b=aeF10hS6gw6w8IpsYwdPPdzVGWM1F0HgB1lxIz7JqqtHGGipeAMtyNRB2PgCM7IAIlFLfr SS+qyZLzxQnrimYqud6gRdZvhtKsTxFXHun2r2V/y2nDjaYSr1j12E+XfevXm46eef2nOu R2SxCAXwwmFFnTw3GhO2lPNLW1pTR2A= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-516-loNm51-UPm2MDNAknTJBtw-1; Wed, 31 Aug 2022 05:39:03 -0400 X-MC-Unique: loNm51-UPm2MDNAknTJBtw-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E545E803301; Wed, 31 Aug 2022 09:39:01 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.41]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A2F13492C3B; Wed, 31 Aug 2022 09:39:01 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 27V9cxuM166708 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Wed, 31 Aug 2022 11:38:59 +0200 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 27V9cwZo166707; Wed, 31 Aug 2022 11:38:58 +0200 Date: Wed, 31 Aug 2022 11:38:58 +0200 From: Jakub Jelinek To: Jonathan Wakely , libstdc++@gcc.gnu.org, gcc-patches@gcc.gnu.org Subject: Patch ping ([PATCH] libstdc++: Outline the overlapping case of string _M_replace into a separate function [PR105329]) Message-ID: Reply-To: Jakub Jelinek References: MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,KAM_SHORT,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi! On Wed, Aug 10, 2022 at 01:27:51PM +0200, Jakub Jelinek via Gcc-patches wrote: > On Wed, Jul 27, 2022 at 11:33:29AM +0200, Jakub Jelinek via Gcc-patches wrote: > > The following patch is partially a workaround for bogus warnings > > when the compiler isn't able to fold _M_disjunct call into constant > > false, but also an optimization attempt - assuming _M_disjunct (__s) > > is rare, the patch should shrink code size for the common case and > > use library or for non-standard instantiations an out of line > > function to handle the rare case. > > I'd like to ping this patch. I'd like to ping this patch again. https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598896.html Thanks. Jakub