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GET /api/patches/2226776/?format=api
{ "id": 2226776, "url": "http://patchwork.ozlabs.org/api/patches/2226776/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.8@forge-stage.sourceware.org/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.8@forge-stage.sourceware.org>", "list_archive_url": null, "date": "2026-04-22T18:49:45", "name": "[v1,08/10] Added test for volatile", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "40fac03c1a22e6ffcb7d72b7180463ab4eeb4a43", "submitter": { "id": 93223, "url": "http://patchwork.ozlabs.org/api/people/93223/?format=api", "name": "tkaminsk via Sourceware Forge", "email": "forge-bot+tkaminsk@forge-stage.sourceware.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.8@forge-stage.sourceware.org/mbox/", "series": [ { "id": 501094, "url": "http://patchwork.ozlabs.org/api/series/501094/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=501094", "date": "2026-04-22T18:49:39", "name": "WIP: libstdc++: add support for cv-qualified types in atomic_ref (P3323R1)", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501094/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226776/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226776/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=2620:52:6:3111::32; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)", "sourceware.org; dmarc=none (p=none dis=none)\n header.from=forge-stage.sourceware.org", "sourceware.org;\n spf=pass smtp.mailfrom=forge-stage.sourceware.org", "server2.sourceware.org;\n arc=none smtp.remote-ip=38.145.34.39" ], "Received": [ "from vm01.sourceware.org (vm01.sourceware.org\n [IPv6:2620:52:6:3111::32])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g18cX2qqXz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 05:37:00 +1000 (AEST)", "from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id C414542CABD4\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 19:36:50 +0000 (GMT)", "from forge-stage.sourceware.org (vm08.sourceware.org [38.145.34.39])\n by sourceware.org (Postfix) with ESMTPS id 22B19407EE03\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 18:51:10 +0000 (GMT)", "from forge-stage.sourceware.org (localhost [IPv6:::1])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256)\n (No client certificate requested)\n by forge-stage.sourceware.org (Postfix) with ESMTPS id 449CF43597\n for <gcc-patches@gcc.gnu.org>; Wed, 22 Apr 2026 18:51:08 +0000 (UTC)" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org C414542CABD4", "OpenDKIM Filter v2.11.0 sourceware.org 22B19407EE03" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org 22B19407EE03", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org 22B19407EE03", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1776883870; cv=none;\n b=bgYyvvtn5daY58wsW+kJzKWBZOP7vwQKtUZN9oWNVHvo2AjbgOKMGWq00MC07OGk+9G9q+Y24LpB8Za06CEfLLRk2GQDkUlBdFpDaS73hh0q+NMT3hYHyNdSDPGUeTtzQHnqFWwuKR3aWzWAiFz6Lb2mcBevCwNdaADHa2Qwo3s=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=sourceware.org; s=key;\n t=1776883870; c=relaxed/simple;\n bh=cpq2eEHZWrWxToM+MQWGt7ynIKhEzJgbUueDt2W0hnk=;\n h=From:Date:Subject:MIME-Version:To:Message-ID;\n b=ufzFrQBdqc57++4ipknRDfpWWRI764dG0Zahxhx17P7xIp0T8TAbkb/X6MrjHMzyLcgy0jj/RjmiWVHEudw0BO5bPDW/Uop8QAy4nCLskSQ1ue+qZh/Je7AMmNEf90XxXYbcF1tXU4FHUQIIJxmJXqn/JCu8mzlwKCDvrMyzx04=", "ARC-Authentication-Results": "i=1; server2.sourceware.org", "From": "tkaminsk via Sourceware Forge\n <forge-bot+tkaminsk@forge-stage.sourceware.org>", "Date": "Wed, 22 Apr 2026 18:49:45 +0000", "Subject": "[PATCH v1 08/10] Added test for volatile", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "To": "gcc-patches mailing list <gcc-patches@gcc.gnu.org>", "Message-ID": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.8@forge-stage.sourceware.org>", "X-Mailer": "batrachomyomachia", "X-Pull-Request-Organization": "gcc", "X-Pull-Request-Repository": "gcc-TEST", "X-Pull-Request": "https://forge.sourceware.org/gcc/gcc-TEST/pulls/85", "References": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.0@forge-stage.sourceware.org>", "In-Reply-To": "\n <bmm.hhup55wx16.gcc.gcc-TEST.tkaminsk.85.1.0@forge-stage.sourceware.org>", "X-Patch-URL": "\n https://forge.sourceware.org/tkaminsk/gcc/commit/91a6239aef530e4f6252bbede2aab24091aad3ec", "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>,\n <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>,\n <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe>", "Reply-To": "gcc-patches mailing list <gcc-patches@gcc.gnu.org>,\n tkaminsk@gcc.gnu.org", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "From: Tomasz Kamiński <tkaminsk@redhat.com>\n\n---\n .../testsuite/29_atomics/atomic_ref/115402.cc | 17 ----\n .../29_atomics/atomic_ref/cv_qual.cc | 94 +++++++++++++++++++\n 2 files changed, 94 insertions(+), 17 deletions(-)\n delete mode 100644 libstdc++-v3/testsuite/29_atomics/atomic_ref/115402.cc\n create mode 100644 libstdc++-v3/testsuite/29_atomics/atomic_ref/cv_qual.cc", "diff": "diff --git a/libstdc++-v3/testsuite/29_atomics/atomic_ref/115402.cc b/libstdc++-v3/testsuite/29_atomics/atomic_ref/115402.cc\ndeleted file mode 100644\nindex 615834400174..000000000000\n--- a/libstdc++-v3/testsuite/29_atomics/atomic_ref/115402.cc\n+++ /dev/null\n@@ -1,17 +0,0 @@\n-// PR libstdc++/115402\n-// { dg-do run { target c++20 } }\n-\n-#include <atomic>\n-\n-int\n-main()\n-{\n- volatile int vi = 0;\n- std::atomic_ref<volatile int> vref(vi);\n- int val = vref.load();\n- vref.exchange(val);\n- vref.compare_exchange_weak(val, 0);\n- vref.compare_exchange_strong(val, 0);\n- // TODO volatile waits are not supported\n- // vref.wait(0);\n-}\ndiff --git a/libstdc++-v3/testsuite/29_atomics/atomic_ref/cv_qual.cc b/libstdc++-v3/testsuite/29_atomics/atomic_ref/cv_qual.cc\nnew file mode 100644\nindex 000000000000..cc397de6ec61\n--- /dev/null\n+++ b/libstdc++-v3/testsuite/29_atomics/atomic_ref/cv_qual.cc\n@@ -0,0 +1,94 @@\n+// Copyright (C) 2019-2025 Free Software Foundation, Inc.\n+//\n+// This file is part of the GNU ISO C++ Library. This library is free\n+// software; you can redistribute it and/or modify it under the\n+// terms of the GNU General Public License as published by the\n+// Free Software Foundation; either version 3, or (at your option)\n+// any later version.\n+\n+// This library is distributed in the hope that it will be useful,\n+// but WITHOUT ANY WARRANTY; without even the implied warranty of\n+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n+// GNU General Public License for more details.\n+\n+// You should have received a copy of the GNU General Public License along\n+// with this library; see the file COPYING3. If not see\n+// <http://www.gnu.org/licenses/>.\n+\n+// { dg-do run { target c++20 } }\n+// { dg-require-atomic-cmpxchg-word \"\" }\n+// { dg-add-options libatomic }\n+\n+#include <atomic>\n+#include <testsuite_hooks.h>\n+\n+struct X\n+{\n+ X() = default;\n+ X(int i) : i(i) { }\n+ int i;\n+\n+ friend bool\n+ operator==(X, X) = default;\n+};\n+\n+template<typename V>\n+void\n+test01(V v0, V v1)\n+{\n+ V value;\n+\n+ if constexpr (std::atomic_ref<V>::is_always_lock_free)\n+ {\n+ std::atomic_ref<volatile V> a(value);\n+ VERIFY( a.is_lock_free() );\n+ \n+ a = v0;\n+ VERIFY( V(a) == v0 );\n+ VERIFY( a.load() == v0 );\n+\n+ a.store(v1);\n+ VERIFY( a.load() == v1 ); \n+\n+ V last = a.exchange(v0);\n+ VERIFY( a.load() == v0 );\n+ VERIFY( last == v1 );\n+\n+ V expected = a.load();\n+ while (!a.compare_exchange_weak(expected, v1))\n+ { /* weak form can fail spuriously */ }\n+ VERIFY( a.load() == v1 );\n+ VERIFY( expected == v0 );\n+\n+ bool ok;\n+ ok = a.compare_exchange_strong(expected, v0);\n+ VERIFY( !ok && a.load() == v1 && expected == v1 );\n+\n+ ok = a.compare_exchange_strong(expected, v0);\n+ VERIFY( ok && a.load() == v0 && expected == v1 );\n+\n+ std::atomic_ref<const volatile V> cva(value);\n+ VERIFY( cva.is_lock_free() );\n+ VERIFY( V(cva) == v0 );\n+ VERIFY( cva.load() == v0 );\n+ }\n+\n+ value = v0;\n+ std::atomic_ref<const V> ca(value);\n+ bool lf = ca.is_lock_free();\n+ if constexpr (std::atomic_ref<V>::is_always_lock_free)\n+ VERIFY( lf );\n+ VERIFY( V(ca) == v0 );\n+ VERIFY( ca.load() == v0 );\n+}\n+\n+int\n+main()\n+{\n+ int x;\n+ test01<bool>(false, true);\n+ test01<int>(1, 2);\n+ test01<float>(1.2, 3.4);\n+ test01<int*>(&x, &x+1);\n+ test01<X>(12, 13);\n+}\n", "prefixes": [ "v1", "08/10" ] }