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2a504a6 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | // -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of libcu++, the C++ Standard Library for your entire system,
// under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
// Atomics for C11
template <typename _Tp>
struct __cxx_atomic_base_impl {
_LIBCUDACXX_INLINE_VISIBILITY
__cxx_atomic_base_impl() noexcept = default;
constexpr explicit __cxx_atomic_base_impl(_Tp value) noexcept
: __a_value(value) {}
_LIBCUDACXX_DISABLE_EXTENSION_WARNING _Atomic(_Tp) __a_value;
};
#ifndef _LIBCUDACXX_ATOMIC_IS_LOCK_FREE
#define _LIBCUDACXX_ATOMIC_IS_LOCK_FREE(__x) __c11_atomic_is_lock_free(__x, 0)
#endif
_LIBCUDACXX_INLINE_VISIBILITY inline
void __cxx_atomic_thread_fence(memory_order __order) noexcept {
__c11_atomic_thread_fence(static_cast<__memory_order_underlying_t>(__order));
}
_LIBCUDACXX_INLINE_VISIBILITY inline
void __cxx_atomic_signal_fence(memory_order __order) noexcept {
__c11_atomic_signal_fence(static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val) noexcept {
__c11_atomic_init(&__a->__a_value, __val);
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
void __cxx_atomic_init(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val) noexcept {
__c11_atomic_init(&__a->__a_value, __val);
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __val, memory_order __order) noexcept {
__c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
void __cxx_atomic_store(__cxx_atomic_base_impl<_Tp> * __a, _Tp __val, memory_order __order) noexcept {
__c11_atomic_store(&__a->__a_value, __val, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const volatile* __a, memory_order __order) noexcept {
using __ptr_type = typename remove_const<decltype(__a->__a_value)>::type*;
return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_load(__cxx_atomic_base_impl<_Tp> const* __a, memory_order __order) noexcept {
using __ptr_type = typename remove_const<decltype(__a->__a_value)>::type*;
return __c11_atomic_load(const_cast<__ptr_type>(&__a->__a_value), static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __value, memory_order __order) noexcept {
return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_exchange(__cxx_atomic_base_impl<_Tp> * __a, _Tp __value, memory_order __order) noexcept {
return __c11_atomic_exchange(&__a->__a_value, __value, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) noexcept {
return __c11_atomic_compare_exchange_strong(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
bool __cxx_atomic_compare_exchange_strong(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) noexcept {
return __c11_atomic_compare_exchange_strong(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) noexcept {
return __c11_atomic_compare_exchange_weak(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
bool __cxx_atomic_compare_exchange_weak(__cxx_atomic_base_impl<_Tp> * __a, _Tp* __expected, _Tp __value, memory_order __success, memory_order __failure) noexcept {
return __c11_atomic_compare_exchange_weak(&__a->__a_value, __expected, __value, static_cast<__memory_order_underlying_t>(__success), static_cast<__memory_order_underlying_t>(__failure));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp* __cxx_atomic_fetch_add(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_add(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp> * __a, _Tp __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> volatile* __a, ptrdiff_t __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp* __cxx_atomic_fetch_sub(__cxx_atomic_base_impl<_Tp*> * __a, ptrdiff_t __delta, memory_order __order) noexcept {
return __c11_atomic_fetch_sub(&__a->__a_value, __delta, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_and(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_and(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_or(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_or(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> volatile* __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
template<class _Tp>
_LIBCUDACXX_INLINE_VISIBILITY
_Tp __cxx_atomic_fetch_xor(__cxx_atomic_base_impl<_Tp> * __a, _Tp __pattern, memory_order __order) noexcept {
return __c11_atomic_fetch_xor(&__a->__a_value, __pattern, static_cast<__memory_order_underlying_t>(__order));
}
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