Message ID | 20230914064949.29787-34-kmatsui@gcc.gnu.org |
---|---|
State | Unresolved |
Headers |
Return-Path: <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp167509vqi; Thu, 14 Sep 2023 00:18:20 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHpnBsE2oz6JGgmZOtgS9E1cVkXUzLTB40nt3oySbuHYYB5tlgkT/Ycq/XWWti+/MFD7xYf X-Received: by 2002:a05:6512:238a:b0:4ff:834b:e01b with SMTP id c10-20020a056512238a00b004ff834be01bmr4923468lfv.19.1694675900373; Thu, 14 Sep 2023 00:18:20 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1694675900; cv=none; d=google.com; s=arc-20160816; b=YZG7UmkER/kIrGlakIJFtAIdg6D2DBwZiNKbsQ+t4IrWx7BfZOvoeahEVTWSXt2UsQ +mkJ8MW9hQFcRwHgaRGyKgPxhmInBOgihDs/W4JXO5gYMxCfTN9pxz3bq9Bq/xScSlds Ygrx/X6RoYtONxwFjSJ25ubVjZHU1Rmg3IhXn18+Sf6kjE2xuZ3gSeeqNjzvPyXJlK5r +JNIIOZj2k8o2cdTJEtSW0Q/nwKwcGdjTpwFJFOBLykZ+6dQcev0AWgJ13hcDcEvC4c2 S56gXfYQW+pjSqdQD+iFy+vJHQDFUd3kXJe3ss2PfK7dQ7m+U3l97Iupwz/OK6CuvaDx eWpw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:from:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence :content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:dmarc-filter:delivered-to :dkim-signature:dkim-filter; bh=noKDFtKJFjfo7apPynoK1CS9k2hGzaYhkiB5OX56sE8=; fh=kSSy/oyUXqQD15FLeKdymIgDBFPFITPA1Gj52CNOxRQ=; b=jjEh17QN9AmSvCTND6kKg6obim0ZomAIQHcWdhDMGnQCzfYLR62zLCcNeGmOpUKtw8 y3iZiP7CMGrPHaCAFq9EoNWkOlrm7ZdDPHC2IX7HgAU9vmz/97cEktPJXgEJQW+xPuPu hNSf5QinwzkxTG9Y1X8bMalpt+Vm7JrvBkWMUK9SO6Dl7TSBNy9vo8l/dUZic4Kc5m6E AuHhtBC7NxOOctRRJQNAft+FsMquT6zOOHaVXC3Lp/B0IjwFLyQX+h6eHCyf0vxkLiGy uWOX6Hk1Vd2MKX5b17hWY0A4GoiC1W/HagDzI0TtcxSWCwjS9gTWyR8uvI3vHTa0wa7W M8Mg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=HAvzzfdO; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id z14-20020aa7c64e000000b0052a1a79597esi776938edr.655.2023.09.14.00.18.20 for <ouuuleilei@gmail.com> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 00:18:20 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=HAvzzfdO; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 52B3F3890970 for <ouuuleilei@gmail.com>; Thu, 14 Sep 2023 07:00:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 52B3F3890970 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694674820; bh=noKDFtKJFjfo7apPynoK1CS9k2hGzaYhkiB5OX56sE8=; h=To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=HAvzzfdOjrhdQKFa6MBaKRsq8736rLqj+pEcf/DnhQBSQY+tFygSkeA9AO/BmW94B qiQ/EymCtHESuXN7ha0ZChc/uq5MUDkA/5kuCVT/DghX+f0SUUpcNZbT/fkVUuSrY8 VIDVN7vfXMeW9ng+mp8SR73ntKPbsJax4CF/UPmQ= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from mx0b-00641c01.pphosted.com (mx0b-00641c01.pphosted.com [205.220.177.146]) by sourceware.org (Postfix) with ESMTPS id 986DF385E03D; Thu, 14 Sep 2023 06:51:16 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 986DF385E03D Received: from pps.filterd (m0247476.ppops.net [127.0.0.1]) by mx0a-00641c01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38E6fVIm014102; Thu, 14 Sep 2023 06:51:16 GMT Received: from mxout24.cac.washington.edu (mxout24.cac.washington.edu [140.142.234.158]) by mx0a-00641c01.pphosted.com (PPS) with ESMTPS id 3t3rxxgvfe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Sep 2023 06:51:15 +0000 Received: from smtp.washington.edu (smtp.washington.edu [140.142.234.157]) by mxout24.cac.washington.edu (8.14.4+UW20.07/8.14.4+UW22.04) with ESMTP id 38E6osi7032288 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Sep 2023 23:50:54 -0700 X-Auth-Received: from localhost.localdomain ([10.154.75.179]) (authenticated authid=kmatsui) by smtp.washington.edu (8.16.1+UW21.10/8.14.4+UW19.10) with ESMTPSA id 38E6nupu027316 (version=TLSv1.2 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Wed, 13 Sep 2023 23:50:53 -0700 X-UW-Orig-Sender: kmatsui@smtp.washington.edu To: gcc-patches@gcc.gnu.org Cc: libstdc++@gcc.gnu.org, Ken Matsui <kmatsui@gcc.gnu.org> Subject: [PATCH v11 33/40] libstdc++: Optimize is_fundamental trait performance Date: Wed, 13 Sep 2023 23:43:12 -0700 Message-ID: <20230914064949.29787-34-kmatsui@gcc.gnu.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230914064949.29787-1-kmatsui@gcc.gnu.org> References: <20230914064949.29787-1-kmatsui@gcc.gnu.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: odEQfv1y9_23-mPk-JOwVRoafDakND4D X-Proofpoint-GUID: odEQfv1y9_23-mPk-JOwVRoafDakND4D X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-14_04,2023-09-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 mlxlogscore=538 malwarescore=0 bulkscore=0 mlxscore=0 clxscore=1034 priorityscore=1501 impostorscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309140060 X-Spam-Status: No, score=-13.1 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> From: Ken Matsui via Gcc-patches <gcc-patches@gcc.gnu.org> Reply-To: Ken Matsui <kmatsui@gcc.gnu.org> Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" <gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1776996476757191546 X-GMAIL-MSGID: 1776996476757191546 |
Series |
Optimize type traits performance
|
|
Checks
Context | Check | Description |
---|---|---|
snail/gcc-patch-check | warning | Git am fail log |
Commit Message
Ken Matsui
Sept. 14, 2023, 6:43 a.m. UTC
This patch optimizes the performance of the is_fundamental trait by
dispatching to the new __is_arithmetic built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_fundamental_v): Use __is_arithmetic
built-in trait.
(is_fundamental): Likewise. Optimize the original implementation.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
---
libstdc++-v3/include/std/type_traits | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index cc466e0f606..88171e1a672 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -739,11 +739,21 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif /// is_fundamental +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_arithmetic) + template<typename _Tp> + struct is_fundamental + : public __bool_constant<__is_arithmetic(_Tp) + || is_void<_Tp>::value + || is_null_pointer<_Tp>::value> + { }; +#else template<typename _Tp> struct is_fundamental - : public __or_<is_arithmetic<_Tp>, is_void<_Tp>, - is_null_pointer<_Tp>>::type + : public __bool_constant<is_arithmetic<_Tp>::value + || is_void<_Tp>::value + || is_null_pointer<_Tp>::value> { }; +#endif /// is_object #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_function) \ @@ -3354,13 +3364,15 @@ template <typename _Tp> #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_arithmetic) template <typename _Tp> inline constexpr bool is_arithmetic_v = __is_arithmetic(_Tp); +template <typename _Tp> + inline constexpr bool is_fundamental_v + = __is_arithmetic(_Tp) || is_void_v<_Tp> || is_null_pointer_v<_Tp>; #else template <typename _Tp> inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value; -#endif - template <typename _Tp> inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value; +#endif #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_function) \ && _GLIBCXX_USE_BUILTIN_TRAIT(__is_reference)