1*0b57cec5SDimitry Andric //===-- atomic_thread_fence.c ---------------------------------------------===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric // 9*0b57cec5SDimitry Andric // This file implements atomic_thread_fence from C11's stdatomic.h. 10*0b57cec5SDimitry Andric // 11*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 12*0b57cec5SDimitry Andric 13*0b57cec5SDimitry Andric #ifndef __has_include 14*0b57cec5SDimitry Andric #define __has_include(inc) 0 15*0b57cec5SDimitry Andric #endif 16*0b57cec5SDimitry Andric 17*0b57cec5SDimitry Andric #if __has_include(<stdatomic.h>) 18*0b57cec5SDimitry Andric 19*0b57cec5SDimitry Andric #include <stdatomic.h> 20*0b57cec5SDimitry Andric #undef atomic_thread_fence atomic_thread_fence(memory_order order)21*0b57cec5SDimitry Andricvoid atomic_thread_fence(memory_order order) { 22*0b57cec5SDimitry Andric __c11_atomic_thread_fence(order); 23*0b57cec5SDimitry Andric } 24*0b57cec5SDimitry Andric 25*0b57cec5SDimitry Andric #endif 26