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{ "id": 2175298, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2175298/?format=api", "project": { "id": 41, "url": "http://patchwork.ozlabs.org/api/1.0/projects/41/?format=api", "name": "GNU C Library", "link_name": "glibc", "list_id": "libc-alpha.sourceware.org", "list_email": "libc-alpha@sourceware.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20251217175554.1157780-1-adhemerval.zanella@linaro.org>", "date": "2025-12-17T17:51:46", "name": "[0/8] Improve test when building with clang", "submitter": { "id": 66065, "url": "http://patchwork.ozlabs.org/api/1.0/people/66065/?format=api", "name": "Adhemerval Zanella Netto", "email": "adhemerval.zanella@linaro.org" }, "series": [ { "id": 485739, "url": "http://patchwork.ozlabs.org/api/1.0/series/485739/?format=api", "date": "2025-12-17T17:51:48", "name": "Improve test when building with clang", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/485739/mbox/" } ], "headers": { "Return-Path": "<libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "libc-alpha@sourceware.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "libc-alpha@sourceware.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=YmxFHiXy;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org\n (client-ip=38.145.34.32; helo=vm01.sourceware.org;\n envelope-from=libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org;\n receiver=patchwork.ozlabs.org)", "sourceware.org;\n\tdkim=pass (2048-bit key,\n unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=YmxFHiXy", "sourceware.org;\n dmarc=pass (p=none dis=none) header.from=linaro.org", "sourceware.org; spf=pass smtp.mailfrom=linaro.org", "server2.sourceware.org;\n arc=none smtp.remote-ip=209.85.214.172" ], "Received": [ "from vm01.sourceware.org (vm01.sourceware.org [38.145.34.32])\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 4dWhMC0MVKz1y0P\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 18 Dec 2025 04:56:55 +1100 (AEDT)", "from vm01.sourceware.org (localhost [127.0.0.1])\n\tby sourceware.org (Postfix) with ESMTP id 1E2534BA2E27\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 17 Dec 2025 17:56:53 +0000 (GMT)", "from mail-pl1-f172.google.com (mail-pl1-f172.google.com\n [209.85.214.172])\n by sourceware.org (Postfix) with ESMTPS id 412314BA2E05\n for <libc-alpha@sourceware.org>; Wed, 17 Dec 2025 17:56:01 +0000 (GMT)", "by mail-pl1-f172.google.com with SMTP id\n d9443c01a7336-2a0d6f647e2so60042265ad.1\n for <libc-alpha@sourceware.org>; Wed, 17 Dec 2025 09:56:01 -0800 (PST)", "from ubuntu-vm.. 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J . Lu\" <hjl.tools@gmail.com>, Collin Funk <collin.funk1@gmail.com>,\n Sam James <sam@gentoo.org>", "Subject": "[PATCH 0/8] Improve test when building with clang", "Date": "Wed, 17 Dec 2025 14:51:46 -0300", "Message-ID": "<20251217175554.1157780-1-adhemerval.zanella@linaro.org>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libc-alpha@sourceware.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Libc-alpha mailing list <libc-alpha.sourceware.org>", "List-Unsubscribe": "<https://sourceware.org/mailman/options/libc-alpha>,\n <mailto:libc-alpha-request@sourceware.org?subject=unsubscribe>", "List-Archive": "<https://sourceware.org/pipermail/libc-alpha/>", "List-Post": "<mailto:libc-alpha@sourceware.org>", "List-Help": "<mailto:libc-alpha-request@sourceware.org?subject=help>", "List-Subscribe": "<https://sourceware.org/mailman/listinfo/libc-alpha>,\n <mailto:libc-alpha-request@sourceware.org?subject=subscribe>", "Errors-To": "libc-alpha-bounces~incoming=patchwork.ozlabs.org@sourceware.org" }, "content": "The math change fixes most regressions when building with clang. On\nx86_64, there are only three regressions (math/test-ldouble-scalb,\nmath/test-tgmath, and math/test-tgmath2), while on aarch64, there are\ntwo (math/test-tgmath and math/test-tgmath2).\n\nAdhemerval Zanella (8):\n math: Do not use __builtin_isgreater* and __builtin_isless* on clang\n x86: Do not use __builtin_fpclassify for _Float64x/long double\n x86: Do not use __builtin_isinf_sign for _Float64x/long double\n stdio: Fix tst-vfprintf-user-type on clang\n math: Fix potential underflow on ldbl-128 erfl\n x86_64: Fix mark-plt configure test\n stdlib: Avoid strlen plt with clang\n math: Use math_opt_barrier on underflow/overflow\n\n bits/fp-builtin-denormal.h | 32 +++++++++\n math/Makefile | 1 +\n math/math.h | 96 ++++++++++++++++++++++++--\n stdio-common/tst-vfprintf-user-type.c | 1 -\n sysdeps/generic/symbol-hacks.h | 1 +\n sysdeps/ieee754/ldbl-128/e_powl.c | 6 +-\n sysdeps/ieee754/ldbl-128/s_erfl.c | 2 +-\n sysdeps/x86/bits/fp-builtin-denormal.h | 29 ++++++++\n sysdeps/x86_64/configure | 4 +-\n sysdeps/x86_64/configure.ac | 2 +-\n 10 files changed, 163 insertions(+), 11 deletions(-)\n create mode 100644 bits/fp-builtin-denormal.h\n create mode 100644 sysdeps/x86/bits/fp-builtin-denormal.h" }