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GET /api/patches/1475742/?format=api
{ "id": 1475742, "url": "http://patchwork.ozlabs.org/api/patches/1475742/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-39-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20210508014802.892561-39-richard.henderson@linaro.org>", "list_archive_url": null, "date": "2021-05-08T01:47:28", "name": "[38/72] softfloat: Use mulu64 for mul64To128", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "85db3e0ce5fa0362c8b459a6e825be0342926032", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20210508014802.892561-39-richard.henderson@linaro.org/mbox/", "series": [ { "id": 242770, "url": "http://patchwork.ozlabs.org/api/series/242770/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=242770", "date": "2021-05-08T01:46:53", "name": "Convert floatx80 and float128 to FloatParts", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/242770/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1475742/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1475742/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=<UNKNOWN>)", "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=c6tA/hOm;\n\tdkim-atps=neutral" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 4FcWFL25wtz9sX5\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 8 May 2021 12:18:14 +1000 (AEST)", "from localhost ([::1]:38880 helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1lfCXk-0007pi-9r\n\tfor incoming@patchwork.ozlabs.org; Fri, 07 May 2021 22:18:12 -0400", "from eggs.gnu.org ([2001:470:142:3::10]:41004)\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1lfC5G-0004ro-1o\n for qemu-devel@nongnu.org; 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a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20161025;\n h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n :references:mime-version:content-transfer-encoding;\n bh=RndXytbTpyoZf87SoTBz0zxUXITxwgpEDPn6NB45UNI=;\n b=rVFr6l1mYHa20vI1528ERaEClsTTsjZkhjqPNm8jsjV++bFKtU5N37rRT+II7uqxC9\n SXyj6bgPXs4lFOExdLTXZ6uieiFRuCI+m2SzsK5h+zIuXEsUXiUwvKQgmJNu2cmJeVeW\n PgCWmie7A26uPSFUCVB/gZ4N3icCMpCqIRfLUxmUh6/FMOmL9eu+nDkm8bLchOhkEOZN\n DEwbtN0EVgTEApsdj7WeQ9UIRykhpv6x3AlNHAOq0DJRc1N7sQkqXDNsGV3YBY4pRUMv\n r2BbuoKGHszKoUuP3oEx+APEl2wO3x+22uiJj9IYe8TILiHTsVxKOqV5ewQJcARUR09D\n vkgQ==", "X-Gm-Message-State": "AOAM532gxzju3dx2VALkPaIyZRft1sLm7K9aqpeL5kv8vQyW1FxMhb+H\n uc1U+fj8mvGOddp1/evGtqbavpu8WKkudA==", "X-Google-Smtp-Source": "\n ABdhPJxct59W6X+6AxKcvJkDerATd0RDWxCQpzf/iL4f6VzDrB5VER+ZDXW+pOekakaM4+kHdjHilA==", "X-Received": "by 2002:a17:902:a9cb:b029:ed:61be:2cfb with SMTP id\n b11-20020a170902a9cbb02900ed61be2cfbmr13180155plr.9.1620438508352;\n Fri, 07 May 2021 18:48:28 -0700 (PDT)", "From": "Richard Henderson <richard.henderson@linaro.org>", "To": "qemu-devel@nongnu.org", "Subject": "[PATCH 38/72] softfloat: Use mulu64 for mul64To128", "Date": "Fri, 7 May 2021 18:47:28 -0700", "Message-Id": "<20210508014802.892561-39-richard.henderson@linaro.org>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20210508014802.892561-1-richard.henderson@linaro.org>", "References": "<20210508014802.892561-1-richard.henderson@linaro.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::634;\n envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x634.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "<qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Cc": "alex.bennee@linaro.org, david@redhat.com", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "\"Qemu-devel\"\n <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>" }, "content": "Via host-utils.h, we use a host widening multiply for\n64-bit hosts, and a common subroutine for 32-bit hosts.\n\nReviewed-by: Alex Bennée <alex.bennee@linaro.org>\nReviewed-by: David Hildenbrand <david@redhat.com>\nSigned-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n include/fpu/softfloat-macros.h | 23 +++--------------------\n 1 file changed, 3 insertions(+), 20 deletions(-)", "diff": "diff --git a/include/fpu/softfloat-macros.h b/include/fpu/softfloat-macros.h\nindex 2e3760a9c1..f6dfbe108d 100644\n--- a/include/fpu/softfloat-macros.h\n+++ b/include/fpu/softfloat-macros.h\n@@ -470,27 +470,10 @@ static inline void sub192(uint64_t a0, uint64_t a1, uint64_t a2,\n | `z0Ptr' and `z1Ptr'.\n *----------------------------------------------------------------------------*/\n \n-static inline void mul64To128( uint64_t a, uint64_t b, uint64_t *z0Ptr, uint64_t *z1Ptr )\n+static inline void\n+mul64To128(uint64_t a, uint64_t b, uint64_t *z0Ptr, uint64_t *z1Ptr)\n {\n- uint32_t aHigh, aLow, bHigh, bLow;\n- uint64_t z0, zMiddleA, zMiddleB, z1;\n-\n- aLow = a;\n- aHigh = a>>32;\n- bLow = b;\n- bHigh = b>>32;\n- z1 = ( (uint64_t) aLow ) * bLow;\n- zMiddleA = ( (uint64_t) aLow ) * bHigh;\n- zMiddleB = ( (uint64_t) aHigh ) * bLow;\n- z0 = ( (uint64_t) aHigh ) * bHigh;\n- zMiddleA += zMiddleB;\n- z0 += ( ( (uint64_t) ( zMiddleA < zMiddleB ) )<<32 ) + ( zMiddleA>>32 );\n- zMiddleA <<= 32;\n- z1 += zMiddleA;\n- z0 += ( z1 < zMiddleA );\n- *z1Ptr = z1;\n- *z0Ptr = z0;\n-\n+ mulu64(z1Ptr, z0Ptr, a, b);\n }\n \n /*----------------------------------------------------------------------------\n", "prefixes": [ "38/72" ] }