[Bug math/23253] tgamma test suite failures on i686 with -march=x86-64 -mtune=generic -mfpmath=sse

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23253

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5fab7fe1dc9cab9a46cf5c8840aa9b7ea3a26296

commit 5fab7fe1dc9cab9a46cf5c8840aa9b7ea3a26296
Author: Florian Weimer <fweimer@redhat.com>
Date:   Wed Jul 4 12:01:31 2018 +0200

    math: Set 387 and SSE2 rounding mode for tgamma on i386 [BZ #23253]

    Previously, only the SSE2 rounding mode was set, so the assembler
    implementations using 387 were not following the expecting rounding
    mode.

    (cherry picked from commit f496b28e61d0342f579bf794c71b80e9c7d0b1b5)

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

Summary of changes:
 ChangeLog                       |   22 ++++++++++++
 NEWS                            |    1 +
 sysdeps/generic/math_private.h  |   68 +++++++++++++++++++++------------------
 sysdeps/i386/Makefile           |    8 ++++
 sysdeps/i386/fpu/fenv_private.h |   18 +++++++---
 5 files changed, 81 insertions(+), 36 deletions(-)

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