From nobody Wed Jul 26 23:51:22 2023 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4RB9f23mqrz4p9FT; Wed, 26 Jul 2023 23:51:22 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4RB9f23CqWz4HlH; Wed, 26 Jul 2023 23:51:22 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1690415482; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=etqbJluaUvXJospdLeYcqIfPC9yfKmSWp22JD2/7qlQ=; b=tHtGz6b4jeyL+x91PFPSqavq21vTPafg3QoYHXKc2qllChSatx7m/VETmeK+p0NeNS2xfe oMUyUtKBo0aHVm331gL4cWWhM9Jv4xylnZiF9WUSu8oV6Xo04TjADu8JyBV4dgYfNu1p1N uNf6WsWwHsHweUYuictBKGqH8cKxI+pJ0Q+dNywjQ+zogtfglqFR058P52fsTTh4Rr8XNe 1OzfmUwuVC48z58+MJzGwH0gptu+zOqYl4Z5x0AMt6/fqaNhlZj8WTGsne6BoaRUA/kj7W evvKtyXeNyq3BHDlKaZUCV3FolIlvgASzhCZylkjy/sgyIkMJ8LOZWq0DyzARA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1690415482; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=etqbJluaUvXJospdLeYcqIfPC9yfKmSWp22JD2/7qlQ=; b=B0uOD/xC/kKaCLAxxRIOCCGuCtEwibsOwbGjZIYssIofcr07zxwXk/eILB2+Rr/swPHoRB Pt/85OTo13rMTzZ24PsG6kRLC6a+Wzn9C1LD6G7S3CK/MsRyx676Jm8+eEmm5RGoV+OVjE cbUBPZjUMe+buRCcgmRloYvZnmXbPAX4OAOjMpMopuzktGRYvh4QgWuRB+fAYKNmlmUfFk kfuyo3rOe0XbSuF4yA7ZaNVw4DDbBStNJsZ+LeKutDG5Qrrh2RDlREzcSyaI1qK7rsBNcb qkMpx+dC6udm1jZgyZezs82hEqwatMERRYUaUQoMFXwx/r8vo3xLr+cALI/y9w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1690415482; a=rsa-sha256; cv=none; b=f6DdIPotA+XXJ3BFAMbCcMry4Ncgb0PA/pIQ6pCm3UWr8PLH5JY0T+8GnAJGSngCnKPTJ/ Mg/gIjO1GSTAgUNuA+BW/KWEb7ej2e1p2s8rTBGO6u8JkUcQGf8f+eua9AFMaqVgGJ38LM RWi0PGFieqmZSfRtc29/2iHPEuzmmpP4tO3OHRzbjcpVS0KEiWQ3Yd5QXhwMQANKcQdym8 nkcv9YR5cU67m1RFo/EyP5u0VTuRMu1AnDWWcCnh5IbIPFURtg+jtSCNt1qDhU6kf1jrlY idRAt3uRIx1PAsC9ill5zw7KUiFAt2jWXyvzL1dCTz0t5snYugT7YlIRmaq61A== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4RB9f22KDcz12wd; Wed, 26 Jul 2023 23:51:22 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.17.1/8.17.1) with ESMTP id 36QNpMwX060637; Wed, 26 Jul 2023 23:51:22 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.17.1/8.17.1/Submit) id 36QNpM4l060636; Wed, 26 Jul 2023 23:51:22 GMT (envelope-from git) Date: Wed, 26 Jul 2023 23:51:22 GMT Message-Id: <202307262351.36QNpM4l060636@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ed Maste Subject: git: 2b01ffb88416 - stable/13 - Fix powf(). List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 2b01ffb8841635440e03dd2f8c3f7a013f1c8bba Auto-Submitted: auto-generated The branch stable/13 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=2b01ffb8841635440e03dd2f8c3f7a013f1c8bba commit 2b01ffb8841635440e03dd2f8c3f7a013f1c8bba Author: Mark Murray AuthorDate: 2021-09-06 17:26:39 +0000 Commit: Ed Maste CommitDate: 2023-07-26 23:07:29 +0000 Fix powf(). Summary: From Steve Kargl: Paul Zimmermann has identified a bug in Openlibm's powf(), which is identical to FreeBSD's libm. Both derived from fdlibm. https://github.com/JuliaMath/openlibm/issues/212. Consider % cat h.c int main(void) { float x, y, z; x = 0x1.ffffecp-1F; y = -0x1.000002p+27F; z = 0x1.557a86p115F; printf("%e %e %e <-- should be %e\n", x, y, powf(x,y), z); return 0; } % cc -o h -fno-builtin h.c -lm && ./h 9.999994e-01 -1.342177e+08 inf <-- should be 5.540807e+34 Reviewers: manu Subscribers: imp, andrew, emaste Differential Revision: https://reviews.freebsd.org/D31865 (cherry picked from commit 292815eac623035493854f133200a4b1041fa246) --- lib/msun/src/e_powf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/msun/src/e_powf.c b/lib/msun/src/e_powf.c index 33eedad50b16..122da455f740 100644 --- a/lib/msun/src/e_powf.c +++ b/lib/msun/src/e_powf.c @@ -136,7 +136,7 @@ __ieee754_powf(float x, float y) /* |y| is huge */ if(iy>0x4d000000) { /* if |y| > 2**27 */ /* over/underflow if x is not close to one */ - if(ix<0x3f7ffff7) return (hy<0)? sn*huge*huge:sn*tiny*tiny; + if(ix<0x3f7ffff6) return (hy<0)? sn*huge*huge:sn*tiny*tiny; if(ix>0x3f800007) return (hy>0)? sn*huge*huge:sn*tiny*tiny; /* now |1-x| is tiny <= 2**-20, suffice to compute log(x) by x-x^2/2+x^3/3-x^4/4 */