diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c')
-rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c b/contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c new file mode 100644 index 000000000000..e61c0647684e --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/atomic_flag_clear_explicit.c @@ -0,0 +1,26 @@ +//===-- atomic_flag_clear_explicit.c --------------------------------------===// +// +// Part of the LLVM Project, 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 +// +//===----------------------------------------------------------------------===// +// +// This file implements atomic_flag_clear_explicit from C11's stdatomic.h. +// +//===----------------------------------------------------------------------===// + +#ifndef __has_include +#define __has_include(inc) 0 +#endif + +#if __has_include(<stdatomic.h>) + +#include <stdatomic.h> +#undef atomic_flag_clear_explicit +void atomic_flag_clear_explicit(volatile atomic_flag *object, + memory_order order) { + __c11_atomic_store(&(object)->_Value, 0, order); +} + +#endif |