/usr/lib/gcc/x86_64-linux-gnu/8/include/x86intrin.h is in libgcc-8-dev 8-20180414-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 | /* Copyright (C) 2008-2018 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _X86INTRIN_H_INCLUDED
#define _X86INTRIN_H_INCLUDED
#include <ia32intrin.h>
#ifndef __iamcu__
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
#include <pmmintrin.h>
#include <tmmintrin.h>
#include <ammintrin.h>
#include <smmintrin.h>
#include <wmmintrin.h>
/* For including AVX instructions */
#include <immintrin.h>
#include <mm3dnow.h>
#include <fma4intrin.h>
#include <xopintrin.h>
#include <lwpintrin.h>
#include <bmiintrin.h>
#include <bmi2intrin.h>
#include <tbmintrin.h>
#include <lzcntintrin.h>
#include <popcntintrin.h>
#include <rdseedintrin.h>
#include <prfchwintrin.h>
#include <fxsrintrin.h>
#include <xsaveintrin.h>
#include <xsaveoptintrin.h>
#include <sgxintrin.h>
#include <pconfigintrin.h>
#endif /* __iamcu__ */
#include <adxintrin.h>
#ifndef __iamcu__
#include <clwbintrin.h>
#include <clflushoptintrin.h>
#include <xsavesintrin.h>
#include <xsavecintrin.h>
#include <mwaitxintrin.h>
#include <clzerointrin.h>
#include <wbnoinvdintrin.h>
#include <pkuintrin.h>
#endif /* __iamcu__ */
#endif /* _X86INTRIN_H_INCLUDED */
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