Blame sysdeps/x86_64/multiarch/sched_cpucount.c

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/* Count bits in CPU set.  x86-64 multi-arch version.
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   This file is part of the GNU C Library.
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   Copyright (C) 2008-2018 Free Software Foundation, Inc.
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   Contributed by Ulrich Drepper <drepper@redhat.com>.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <sched.h>
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#include "init-arch.h"
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#define __sched_cpucount static generic_cpucount
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#include <posix/sched_cpucount.c>
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#undef __sched_cpucount
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#define POPCNT(l) \
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  ({ __cpu_mask r; \
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     asm ("popcnt %1, %0" : "=r" (r) : "0" (l));\
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     r; })
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#define __sched_cpucount static popcount_cpucount
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#include <posix/sched_cpucount.c>
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#undef __sched_cpucount
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libc_ifunc (__sched_cpucount,
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	    HAS_CPU_FEATURE (POPCNT) ? popcount_cpucount : generic_cpucount);