[Bug math/15918] Unnecessary check for equality in hypotf()

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https://sourceware.org/bugzilla/show_bug.cgi?id=15918

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=694aabefd2eb3a0e2c5624d7feb1d7310b2bdd8b

commit 694aabefd2eb3a0e2c5624d7feb1d7310b2bdd8b
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue Sep 15 17:24:23 2015 +0000

    Simplify hypotf infinity handling (bug 15918).

    Bug 15918 points out that the handling of infinities in hypotf can be
    simplified: it's enough to return the absolute value of the infinite
    argument without first comparing it to the other argument and possibly
    returning that other argument's absolute value.  This patch makes that
    cleanup (which should not change how hypotf behaves on any input).

    Tested for x86_64.

        [BZ #15918]
        * sysdeps/ieee754/flt-32/e_hypotf.c (__ieee754_hypotf): Simplify
        handling of cases where one argument is an infinity.

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

Summary of changes:
 ChangeLog                         |    4 ++++
 NEWS                              |   12 ++++++------
 sysdeps/ieee754/flt-32/e_hypotf.c |   12 ++----------
 3 files changed, 12 insertions(+), 16 deletions(-)

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