[Bug 251091] lib msun remainder() gives incorrect result on powerpc64

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 14 Oct 2025 14:16:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251091

--- Comment #10 from commit-hook@FreeBSD.org ---
A commit in branch stable/14 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=439909c48b0e8b0e8dda03b9a359b73dcabb546e

commit 439909c48b0e8b0e8dda03b9a359b73dcabb546e
Author:     Ahmad Khalifa <vexeduxr@FreeBSD.org>
AuthorDate: 2025-10-10 09:30:52 +0000
Commit:     Ahmad Khalifa <vexeduxr@FreeBSD.org>
CommitDate: 2025-10-14 14:00:19 +0000

    libm: remainder: make sure x is zero

    Make sure the entirety of x is zero before flipping the sign bit.
    Otherwise the sign would be wrong for small values of x when x is
    negative and |n*y| > |x|

    Reported by:    alfredo
    PR:             251091
    Reviewed by:    kargl
    MFC after:      3 days
    Differential Revision: https://reviews.freebsd.org/D53023

    (cherry picked from commit 25cca51ed294890d20a3c0290814cd26875db686)

 lib/msun/src/e_remainder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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