Blame sysdeps/x86/init-arch.h
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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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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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#ifdef __ASSEMBLER__
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# include <cpu-features.h>
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#else
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# include <ldsodefs.h>
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#endif
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#include <ifunc-init.h>
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#include <isa.h>
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#ifndef __x86_64__
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/* Due to the reordering and the other nifty extensions in i686, it is
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not really good to use heavily i586 optimized code on an i686. It's
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better to use i486 code if it isn't an i586. */
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# if MINIMUM_ISA == 686
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# define USE_I586 0
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# define USE_I686 1
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# else
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# define USE_I586 (HAS_ARCH_FEATURE (I586) && !HAS_ARCH_FEATURE (I686))
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# define USE_I686 HAS_ARCH_FEATURE (I686)
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# endif
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#endif
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