[Bug string/20195] FMA4 detection requires CPUID execution with register eax=0x80000001

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

https://sourceware.org/bugzilla/show_bug.cgi?id=20195

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=91655fc307fec2d5a8d60446b4de11cc986b47fa

commit 91655fc307fec2d5a8d60446b4de11cc986b47fa
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Jun 7 08:00:21 2016 -0700

    Check FMA after COMMON_CPUID_INDEX_80000001

    Since the FMA4 bit is in COMMON_CPUID_INDEX_80000001 and FMA4 requires
    AVX, determine if FMA4 is usable after COMMON_CPUID_INDEX_80000001 is
    available and if AVX is usable.

        [BZ #20195]
        * sysdeps/x86/cpu-features.c (get_common_indeces): Move FMA4
        check to ...
        (init_cpu_features): Here.

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

Summary of changes:
 ChangeLog                  |    7 +++++++
 sysdeps/x86/cpu-features.c |   13 +++++++++----
 2 files changed, 16 insertions(+), 4 deletions(-)

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