--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/i386/avx512ifmaintrin.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,104 @@
+/* Copyright (C) 2013-2017 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 _IMMINTRIN_H_INCLUDED
+#error "Never use <avx512ifmaintrin.h> directly; include <immintrin.h> instead."
+#endif
+
+#ifndef _AVX512IFMAINTRIN_H_INCLUDED
+#define _AVX512IFMAINTRIN_H_INCLUDED
+
+#ifndef __AVX512IFMA__
+#pragma GCC push_options
+#pragma GCC target("avx512ifma")
+#define __DISABLE_AVX512IFMA__
+#endif /* __AVX512IFMA__ */
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_madd52lo_epu64 (__m512i __X, __m512i __Y, __m512i __Z)
+{
+  return (__m512i) __builtin_ia32_vpmadd52luq512_mask ((__v8di) __X,
+						       (__v8di) __Y,
+						       (__v8di) __Z,
+						       (__mmask8) -1);
+}
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_madd52hi_epu64 (__m512i __X, __m512i __Y, __m512i __Z)
+{
+  return (__m512i) __builtin_ia32_vpmadd52huq512_mask ((__v8di) __X,
+						       (__v8di) __Y,
+						       (__v8di) __Z,
+						       (__mmask8) -1);
+}
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_mask_madd52lo_epu64 (__m512i __W, __mmask8 __M, __m512i __X,
+			    __m512i __Y)
+{
+  return (__m512i) __builtin_ia32_vpmadd52luq512_mask ((__v8di) __W,
+						       (__v8di) __X,
+						       (__v8di) __Y,
+						       (__mmask8) __M);
+}
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_mask_madd52hi_epu64 (__m512i __W, __mmask8 __M, __m512i __X,
+			    __m512i __Y)
+{
+  return (__m512i) __builtin_ia32_vpmadd52huq512_mask ((__v8di) __W,
+						       (__v8di) __X,
+						       (__v8di) __Y,
+						       (__mmask8) __M);
+}
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_maskz_madd52lo_epu64 (__mmask8 __M, __m512i __X, __m512i __Y, __m512i __Z)
+{
+  return (__m512i) __builtin_ia32_vpmadd52luq512_maskz ((__v8di) __X,
+							(__v8di) __Y,
+							(__v8di) __Z,
+							(__mmask8) __M);
+}
+
+extern __inline __m512i
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_maskz_madd52hi_epu64 (__mmask8 __M, __m512i __X, __m512i __Y, __m512i __Z)
+{
+  return (__m512i) __builtin_ia32_vpmadd52huq512_maskz ((__v8di) __X,
+							(__v8di) __Y,
+							(__v8di) __Z,
+							(__mmask8) __M);
+}
+
+#ifdef __DISABLE_AVX512IFMA__
+#undef __DISABLE_AVX512IFMA__
+#pragma GCC pop_options
+#endif /* __DISABLE_AVX512IFMA__ */
+
+#endif /* _AVX512IFMAINTRIN_H_INCLUDED */