Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:103043 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 66190 invoked from network); 4 Aug 2018 21:51:59 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 4 Aug 2018 21:51:59 -0000 Authentication-Results: pb1.pair.com smtp.mail=nikita.ppv@gmail.com; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=nikita.ppv@gmail.com; sender-id=pass Received-SPF: pass (pb1.pair.com: domain gmail.com designates 209.85.214.41 as permitted sender) X-PHP-List-Original-Sender: nikita.ppv@gmail.com X-Host-Fingerprint: 209.85.214.41 mail-it0-f41.google.com Received: from [209.85.214.41] ([209.85.214.41:56024] helo=mail-it0-f41.google.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 3D/A3-28158-EFF166B5 for ; Sat, 04 Aug 2018 17:51:58 -0400 Received: by mail-it0-f41.google.com with SMTP id d10-v6so12841443itj.5 for ; Sat, 04 Aug 2018 14:51:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=5aQZBeeb7+FLwzh5Ncrh2wksv6UWpvu5CneFsdKihqo=; b=SpcK4Gk5H/VBZsSzy5xycxpTKDYgD4RWU2yWmQSmf8Uu+jDRf5JdiLk3qK6WxzbsaQ cQ8rk/sKzyk+k51uRVUfWsEvwFwWv+7jLTZdc+ooEbr6vAjpU8jILcnvrlgaLWwS2g/o vuRi148sPAE32RUAH9sdvkalekqrXUC3R21vkpK601AYE5cc7UsBK3G/M0BSLGQP0EG9 qbjQTKmWtlnn2xQgBv15WnC/1RFOojSdjB83kyBntn2Fy344bcjS0FNGRg81uMVBH3PP g+Z/4dVr0hAWKmRUZ18Q7cxFMJR61/oO19XRFltIfT8W8JPt1XsfKZJ4pSi0aCx5s1EC VvBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=5aQZBeeb7+FLwzh5Ncrh2wksv6UWpvu5CneFsdKihqo=; b=tc0R3w795oFrUAIqpLvFm5SKXCo9jKwPwR7eR3el235m4sCDYfm5ZUUKuBlnK2YnG9 CQXrQgPoM0wBrNucuiqIEnuYEP5lp/b8m0gdM0wtqioLxYYxOsvRhLVVwJ8ilV5O1BUG MfHU4/C2Q1mFxgJPBMAJ5FS0bDF1kCnmtQzW+6oG9r2z5AJNa//Z+tLO9wv4IHQtIBTx 3tvUTICbvjDehe5Omdu7vOMJJPYGiOuW85H042Kn50+HX6GZaQoFXRBsMi6veBKJ28os Gv6fq4VKeWdO4NwLm9Gxm4rJmFjwLXWIrzALJZoLHBMiCLYLTPJBWdFMwapqw9Y7QKgX hkbQ== X-Gm-Message-State: AOUpUlHIAoaBdRkv24y+/vGcjdOUuvUnW101grMWaFjogUk/WP9QeR2j 3ReMVqEfNdSYQyiM2OBdolzNFQ2BlwW3AS8/eCVJnw== X-Google-Smtp-Source: AAOMgpfbqv+xCoRY7q2jcZlJ8Oguc+CNvbK+gsALlMbu0yuv0bZhuKATtieh7gLRPBTZiAdbXHMVcUMLDzPd5CZopEY= X-Received: by 2002:a02:59c9:: with SMTP id v70-v6mr7691358jad.94.1533419515516; Sat, 04 Aug 2018 14:51:55 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a6b:148a:0:0:0:0:0 with HTTP; Sat, 4 Aug 2018 14:51:55 -0700 (PDT) In-Reply-To: References: Date: Sat, 4 Aug 2018 23:51:55 +0200 Message-ID: To: Dan Ackroyd Cc: Michael Moravec , PHP internals Content-Type: multipart/alternative; boundary="000000000000839a620572a30d83" Subject: Re: [PHP-DEV] GCC -foptimize-strlen and bug #76510 From: nikita.ppv@gmail.com (Nikita Popov) --000000000000839a620572a30d83 Content-Type: text/plain; charset="UTF-8" On Sat, Aug 4, 2018 at 11:18 PM, Dan Ackroyd wrote: > On 4 August 2018 at 21:46, Michael Moravec wrote: > > > > Unfortunately this is where my journey ends - my C/GCC knowledge is not > > sufficient enough to analyse this further. > > > > Hi Michael, > > If you can reproduce the issue, it would be appropriate for you to > open a bug report with the GCC people, presumably at > https://gcc.gnu.org/bugzilla/ > > What can be done to work around optimisation bugs is quite limited. > More likely than not this is a bug on our side triggered by this optimization, not a bug in GCC. A run through valgrind might reveal something. Nikita --000000000000839a620572a30d83--