diff --git a/libstdc++-v3/config/cpu/aarch64/opt/bits/opt_random.h b/libstdc++-v3/config/cpu/aarch64/opt/bits/opt_random.h
new file mode 100644
index 0000000..7a49f3c
--- /dev/null
+++ b/libstdc++-v3/config/cpu/aarch64/opt/bits/opt_random.h
@@ -0,0 +1,52 @@
+// Optimizations for random number functions, aarch64 version -*- C++ -*-
+
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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.
+
+// This library 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
+// .
+
+/** @file bits/opt_random.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{random}
+ */
+
+#ifndef _BITS_OPT_RANDOM_H
+#define _BITS_OPT_RANDOM_H 1
+
+#ifdef __ARM_NEON
+#include "arm_neon.h"
+#endif
+
+
+#pragma GCC system_header
+
+
+namespace std _GLIBCXX_VISIBILITY (default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+
+#endif // _BITS_OPT_RANDOM_H
diff --git a/libstdc++-v3/config/cpu/aarch64/opt/ext/opt_random.h b/libstdc++-v3/config/cpu/aarch64/opt/ext/opt_random.h
new file mode 100644
index 0000000..5099c85
--- /dev/null
+++ b/libstdc++-v3/config/cpu/aarch64/opt/ext/opt_random.h
@@ -0,0 +1,160 @@
+// Optimizations for random number extensions, aarch64 version -*- C++ -*-
+
+// Copyright (C) 2017 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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.
+
+// This library 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
+// .
+
+/** @file ext/random.tcc
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{ext/random}
+ */
+
+#ifndef _EXT_OPT_RANDOM_H
+#define _EXT_OPT_RANDOM_H 1
+
+#pragma GCC system_header
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+
+#ifdef __ARM_NEON
+
+#include "arm_neon.h"
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY (default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ namespace {
+ template
+ inline int32x4_t __aarch64_recursion (int32x4_t __a, int32x4_t __b,
+ int32x4_t __c, int32x4_t __d,
+ int32x4_t __e, int8x16_t __zero)
+ {
+ int32x4_t __y = (int32x4_t) vshrq_n_u32 ((uint32x4_t) __b, __sr1);
+ int32x4_t __z = (int32x4_t) vextq_s8 ((int8x16_t)__c, __zero, __sr2);
+ int32x4_t __v = (int32x4_t) vshlq_n_s32 (__d,__sl1);
+
+ __z = veorq_s32 (__z, __a);
+ __z = veorq_s32 (__z, __v);
+
+ int32x4_t __x = (int32x4_t) vextq_s8 (__zero,
+ (int8x16_t) __a, 16 - __sl2);
+ __y = (int32x4_t) vandq_s32 (__y, __e);
+ __z = veorq_s32 (__z, __x);
+ return veorq_s32 (__z, __y);
+ }
+
+ }
+
+
+#define _GLIBCXX_OPT_HAVE_RANDOM_SFMT_GEN_READ 1
+ template
+ void simd_fast_mersenne_twister_engine<_UIntType, __m,
+ __pos1, __sl1, __sl2, __sr1, __sr2,
+ __msk1, __msk2, __msk3, __msk4,
+ __parity1, __parity2, __parity3,
+ __parity4>::
+ _M_gen_rand (void)
+ {
+ int32x4_t __r1 = vld1q_s32 ((int32_t *)&_M_state[_M_nstate - 2]);
+ int32x4_t __r2 = vld1q_s32 ((int32_t *)&_M_state[_M_nstate - 1]);
+
+ int32_t __attribute__ ((aligned (16))) data[4] = {__msk1, __msk2,
+ __msk3, __msk4};
+ int32x4_t __aData = vld1q_s32 (data);
+ const int8x16_t zero = (int8x16_t) vdupq_n_s8 (0);
+
+ size_t __i;
+ for (__i = 0; __i < _M_nstate - __pos1; ++__i)
+ {
+ int32x4_t __r = __aarch64_recursion<__sl1, __sl2, __sr1, __sr2>
+ (_M_state[__i], _M_state[__i + __pos1], __r1, __r2, __aData, zero);
+
+ vst1q_s32 ((int32_t*) &_M_state[__i], __r);
+ __r1 = __r2;
+ __r2 = __r;
+ }
+ for (; __i < _M_nstate; ++__i)
+ {
+ int32x4_t __r = __aarch64_recursion<__sl1, __sl2, __sr1, __sr2>
+ (_M_state[__i], _M_state[__i + __pos1 - _M_nstate], __r1, __r2,
+ __aData, zero);
+
+ vst1q_s32 ((int32_t*)&_M_state[__i], __r);
+ __r1 = __r2;
+ __r2 = __r;
+ }
+
+ _M_pos = 0;
+ }
+
+
+#define _GLIBCXX_OPT_HAVE_RANDOM_SFMT_OPERATOREQUAL 1
+ template
+ bool
+ operator==(const __gnu_cxx::simd_fast_mersenne_twister_engine<_UIntType,
+ __m, __pos1, __sl1, __sl2, __sr1, __sr2,
+ __msk1, __msk2, __msk3, __msk4,
+ __parity1, __parity2, __parity3, __parity4>& __lhs,
+ const __gnu_cxx::simd_fast_mersenne_twister_engine<_UIntType,
+ __m, __pos1, __sl1, __sl2, __sr1, __sr2,
+ __msk1, __msk2, __msk3, __msk4,
+ __parity1, __parity2, __parity3, __parity4>& __rhs)
+ {
+ if (__lhs._M_pos != __rhs._M_pos)
+ return false;
+
+ uint8x16_t __res = veorq_u8 ((uint8x16_t) __lhs._M_state[0],
+ (uint8x16_t) __rhs._M_state[0]);
+
+ int32x4_t __compare_res;
+ for (size_t __i = 1; __i < __lhs._M_nstate; ++__i)
+ {
+ __compare_res = (int32x4_t) veorq_u8 ((uint8x16_t) __lhs._M_state[__i],
+ (uint8x16_t) __rhs._M_state[__i]);
+
+ __res = (uint8x16_t) vorrq_s32 ((int32x4_t) __res, __compare_res);
+ }
+
+ return ((__int128) __res == 0);
+ }
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif // __ARM_NEON
+
+#endif // __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+
+#endif // _EXT_OPT_RANDOM_H
diff --git a/libstdc++-v3/include/ext/random b/libstdc++-v3/include/ext/random
index 167c560..b8ebe2c 100644
--- a/libstdc++-v3/include/ext/random
+++ b/libstdc++-v3/include/ext/random
@@ -42,6 +42,9 @@
#ifdef __SSE2__
# include
#endif
+#ifdef __ARM_NEON
+#include "arm_neon.h"
+#endif
#if defined(_GLIBCXX_USE_C99_STDINT_TR1) && defined(UINT32_C)
@@ -184,6 +187,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#ifdef __SSE2__
__m128i _M_state[_M_nstate];
#endif
+#ifdef __ARM_NEON
+ int32x4_t _M_state[_M_nstate];
+#endif
uint32_t _M_state32[_M_nstate32];
result_type _M_stateT[state_size];
} __attribute__ ((__aligned__ (16)));
--
1.9.1