From patchwork Wed Aug 16 16:05:26 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H.J. Lu" X-Patchwork-Id: 22150 Received: (qmail 13904 invoked by alias); 16 Aug 2017 16:05:32 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 13050 invoked by uid 89); 16 Aug 2017 16:05:30 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.0 required=5.0 tests=AWL, BAYES_00, FREEMAIL_FROM, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=credit X-HELO: mail-oi0-f49.google.com 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=CpeotB2ar5crzhMjcFAM7EymmNKd+mUqPyoaKGXUS7k=; b=NF6VGqjt1KTfIOW1LMl1PXkhAJfPo7r3Hje+sfDoYhesHFpJCqQq0oXR5jI6gaiTuj O9yRjlSuWapdNsST/yaEhlJCwQF2WhIc6Ls66u1P9eAkwncWjr1YBt2V0cS6tR6sCBjN eeduQl562XRfbSWz8VzSsma79AETtZO/QKCvjZuxZXeHKOMk8ElFH8CJqV3K7ziGzAny l9MH34Q9DMgy0+PxEOZn72/a5T9rS+DMMEC9jqP6BiOcxxMFcDyYcPgbj998z5HvuvU0 MyAeshVkoU0zSf3YOL/3Bcw3pYsmPUI4OHcJ6VB/6ksiNsw3PoFH2sbIfm+KiMt6l7mW v1Xw== X-Gm-Message-State: AHYfb5jPOFxRbtTip99rOs0h7EExio/gOusexALpuL7S/UfHnJYPcXNP x/fpVSU2c34FufloxX9NQs762VnrWQ== X-Received: by 10.202.81.68 with SMTP id f65mr2882409oib.2.1502899527751; Wed, 16 Aug 2017 09:05:27 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <86ecc4b5-f543-3ece-df7e-e2fb654ad8d1@redhat.com> References: <20170816133450.GA4074@gmail.com> <6d943008-ffb1-af02-ddf3-f287fe99ff1f@redhat.com> <4606116b-1bb3-1f3b-2f6f-c8de0afe43bd@redhat.com> <86ecc4b5-f543-3ece-df7e-e2fb654ad8d1@redhat.com> From: "H.J. Lu" Date: Wed, 16 Aug 2017 09:05:26 -0700 Message-ID: Subject: Re: [PATCH] x86-64: Optimize e_expf with FMA [BZ #21912] To: "Carlos O'Donell" Cc: GNU C Library , Arjan van de Ven On Wed, Aug 16, 2017 at 9:00 AM, Carlos O'Donell wrote: > On 08/16/2017 11:57 AM, H.J. Lu wrote: >> On Wed, Aug 16, 2017 at 8:45 AM, Carlos O'Donell wrote: >>> On 08/16/2017 11:33 AM, H.J. Lu wrote: >>>> Here is the updated patch I am checking in. >>> >>> LGTM. Please include a NEWS entry describing the new optimizations for Intel. >>> >> >> Like this? > > You should attribute this to Intel or the particular author who wrote the > optimization to give them visible credit :-) > > Otherwise looks good. > I am going to check in this. Thanks. From 1eba220f5a2b37fd35d0ec8f7f35dc92d91831ad Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 16 Aug 2017 08:56:24 -0700 Subject: [PATCH] Mention x86-64 FMA optimization in NEWS * NEWS: Mention x86-64 FMA optimization. --- NEWS | 3 +++ 1 file changed, 3 insertions(+) diff --git a/NEWS b/NEWS index 0008df16c0..0475e225ca 100644 --- a/NEWS +++ b/NEWS @@ -11,6 +11,9 @@ Major new features: [Add new features here] +* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin and tan + with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel. + Deprecated and removed features, and other changes affecting compatibility: * On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer -- 2.13.5