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GET /api/1.1/patches/2219765/?format=api
{ "id": 2219765, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2219765/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/6327994.e9J7NaK4W3@vir-laptop/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/1.1/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 }, "msgid": "<6327994.e9J7NaK4W3@vir-laptop>", "date": "2026-04-04T08:31:13", "name": "libstdc++: Guard use of float16_t and bfloat16_t", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "2d05531b10c6b664eff64af54bc9f5e88898d6c8", "submitter": { "id": 92625, "url": "http://patchwork.ozlabs.org/api/1.1/people/92625/?format=api", "name": "Matthias Kretz", "email": "MatthiasKretz@gmx.net" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/6327994.e9J7NaK4W3@vir-laptop/mbox/", "series": [ { "id": 498706, "url": "http://patchwork.ozlabs.org/api/1.1/series/498706/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=498706", "date": "2026-04-04T08:31:13", "name": "libstdc++: Guard use of float16_t and bfloat16_t", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498706/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219765/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219765/checks/", "tags": {}, "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\tdkim=pass (2048-bit key;\n secure) header.d=gmx.net header.i=matthiaskretz@gmx.net header.a=rsa-sha256\n header.s=s31663417 header.b=BgQ8I1Ck;\n\tdkim-atps=neutral", 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legolas.ozlabs.org (Postfix) with ESMTPS id 4fnppK2TpWz1yG2\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 04 Apr 2026 19:36:09 +1100 (AEDT)", "from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 58B164BA23FF\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 4 Apr 2026 08:36:07 +0000 (GMT)", "from mout.gmx.net (mout.gmx.net [212.227.15.15])\n by sourceware.org (Postfix) with ESMTPS id A2A2D4BA23C3;\n Sat, 4 Apr 2026 08:35:34 +0000 (GMT)", "from client.hidden.invalid by mail.gmx.net (mrgmx004\n [212.227.17.190]) with ESMTPSA (Nemesis) id 1M42jK-1w8wTd0bcu-003AK9; Sat, 04\n Apr 2026 10:35:33 +0200" ], "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 sourceware.org 58B164BA23FF", "OpenDKIM Filter v2.11.0 sourceware.org A2A2D4BA23C3" ], "DMARC-Filter": "OpenDMARC Filter v1.4.2 sourceware.org A2A2D4BA23C3", "ARC-Filter": "OpenARC Filter v1.0.0 sourceware.org A2A2D4BA23C3", "ARC-Seal": "i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1775291735; cv=none;\n 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content-transfer-encoding:content-type:date:from:message-id:\n mime-version:reply-to:subject:to;\n b=BgQ8I1CkLvGtrOo4AFSAsKrCCZrFcLXo40k/l7bwMAlAftABp42fP4ZDO7160qLG\n HIkbCKJTRGE4kJAuAPoX0bAa+7M/sju6gZLGXO2FPV/ufp3zoUoW1F4ADBlbg0yEB\n +Vk1DGiiBDNPI8Ln8IY5dBustRWjAyiSLLbFvmbShImZM5aXrQPaaZZ0+pc50lTlZ\n 6xj+bsOuYaq5GXewx9m+9wGCNVUzhJH4bSQpteqJbh4e0ZC4mOB5L+dqEVo6vdzSk\n tQPYPw8kYmvmocIbho22rDVnqPxpYWOzwFbevXQEINvH2FYLI15W1L8l4h4fOOmUU\n bEu6cxmm2H1PTKCzwg==", "X-UI-Sender-Class": "724b4f7f-cbec-4199-ad4e-598c01a50d3a", "From": "Matthias Kretz <MatthiasKretz@gmx.net>", "To": "libstdc++@gcc.gnu.org, gcc-patches@gcc.gnu.org", "Subject": "[PATCH] libstdc++: Guard use of float16_t and bfloat16_t", "Date": "Sat, 04 Apr 2026 10:31:13 +0200", "Message-ID": "<6327994.e9J7NaK4W3@vir-laptop>", "Organization": "GSI Helmholtz Center for Heavy Ion Research", "MIME-Version": "1.0", "Content-Transfer-Encoding": "quoted-printable", "Content-Type": "text/plain; charset=\"utf-8\"", "X-Provags-ID": 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adALq5+xXC13lkIWt+6FtMLPtoJikFUC11XQIGaM+En9Z8pWELp/gp6YvZu8vevIt0QNMm2Ds\n MchRLj8w80RqWCigxJjnaYb0WkSoi08XQ==", "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>", "Errors-To": "gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org" }, "content": "The rest of this test is still relevant, thus only the (b)float16_t\ntests are made optional rather than skipping the whole test via\ndg-effective-target.\n\nlibstdc++-v3/ChangeLog:\n\n\tPR libstdc++/124722\n\t* testsuite/std/simd/traits_impl.cc: Add __STDCPP_FLOAT16_T__\n and __STDCPP_BFLOAT16_T__ guards.\n\nSigned-off-by: Matthias Kretz <m.kretz@gsi.de>\n---\n libstdc++-v3/testsuite/std/simd/traits_impl.cc | 16 +++++++++++++++-\n 1 file changed, 15 insertions(+), 1 deletion(-)\n\n static_assert(__vectorizable<T>);\n@@ -25,7 +31,9 @@ namespace simd\n \n static_assert(!__vectorizable<const float>);\n static_assert(!__vectorizable<float&>);\n+#ifdef __STDCPP_BFLOAT16_T__\n static_assert(!__vectorizable<std::bfloat16_t>);\n+#endif\n \n template for (constexpr int N : {1, 2, 4, 8})\n {\n@@ -82,8 +90,10 @@ namespace simd\n static_assert( __value_preserving_convertible_to<float, double>);\n static_assert(!__value_preserving_convertible_to<double, float>);\n \n+#ifdef __STDCPP_FLOAT16_T__\n static_assert(__explicitly_convertible_to<float, float16_t>);\n static_assert(__explicitly_convertible_to<long, float16_t>);\n+#endif\n \n static_assert(__constexpr_wrapper_like<std::constant_wrapper<2>>);\n static_assert(__constexpr_wrapper_like<std::integral_constant<int, 1>>);\n@@ -95,7 +105,9 @@ namespace simd\n static_assert(!__broadcast_constructible<const int, float>);\n \n static_assert(__broadcast_constructible<decltype(std::cw<2>), float>);\n+#ifdef __STDCPP_FLOAT16_T__\n static_assert(__broadcast_constructible<decltype(std::cw<0.f>), \nstd::float16_t>);\n+#endif\n \n \n static_assert(__higher_rank_than<long, int>);\n@@ -112,7 +124,9 @@ namespace simd\n static_assert(__higher_rank_than<unsigned long, int>);\n static_assert(__higher_rank_than<unsigned long long, long>);\n \n+#ifdef __STDCPP_FLOAT16_T__\n static_assert(__higher_rank_than<float, float16_t>);\n+#endif\n static_assert(__higher_rank_than<float32_t, float>);\n static_assert(__higher_rank_than<double, float32_t>);\n static_assert(__higher_rank_than<double, float>);", "diff": "diff --git a/libstdc++-v3/testsuite/std/simd/traits_impl.cc b/libstdc++-v3/\ntestsuite/std/simd/traits_impl.cc\nindex a264bd5f140..06bf6d5be25 100644\n--- a/libstdc++-v3/testsuite/std/simd/traits_impl.cc\n+++ b/libstdc++-v3/testsuite/std/simd/traits_impl.cc\n@@ -9,7 +9,9 @@\n \n namespace simd = std::simd;\n \n+#ifdef __STDCPP_FLOAT16_T__\n using std::float16_t;\n+#endif\n using std::float32_t;\n using std::float64_t;\n \n@@ -17,7 +19,11 @@ namespace simd\n \n void test()\n {\n- template for (auto t : {float(), double(), float16_t(), float32_t(), \nfloat64_t()})\n+ template for (auto t : {float(), double(),\n+#ifdef __STDCPP_FLOAT16_T__\n+\t\t\t float16_t(),\n+#endif\n+\t\t\t float32_t(), float64_t()})\n {\n using T = decltype(t);\n", "prefixes": [] }