[Bug math/20151] [ldbl-128/ldbl-128ibm] j0l, j1l, y0l, y1l return sNaN for sNaN argument

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https://sourceware.org/bugzilla/show_bug.cgi?id=20151

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=d73e7bdb3a9284eb437b6cd84923658e25f922f2

commit d73e7bdb3a9284eb437b6cd84923658e25f922f2
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Thu May 26 20:55:03 2016 +0000

    Fix ldbl-128 j0l, j1l, y0l, y1l for sNaN argument (bug 20151).

    The ldbl-128 implementations of j0l, j1l, y0l, y1l (also used for
    ldbl-128ibm) return an sNaN argument unchanged.  This patch fixes them
    to add a NaN argument to itself to quiet it before return.

    Tested for mips64.

        [BZ #20151]
        * sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_j0l): Add NaN
        argument to itself before returning result.
        (__ieee754_y0l): Likewise.
        * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_j1l): Likewise.
        (__ieee754_y1l).

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                        |    7 +++++++
 sysdeps/ieee754/ldbl-128/e_j0l.c |    4 ++--
 sysdeps/ieee754/ldbl-128/e_j1l.c |    4 ++--
 3 files changed, 11 insertions(+), 4 deletions(-)

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