blob: 061e32b1fe75a095bf9e9e674b0091c32810f80b [file] [log] [blame]
struct atomic_compare_exchange_result_u32 {
uint old_value;
bool exchanged;
};
RWByteAddressBuffer a : register(u0);
atomic_compare_exchange_result_u32 aatomicCompareExchangeWeak(uint offset, uint compare, uint value) {
atomic_compare_exchange_result_u32 result=(atomic_compare_exchange_result_u32)0;
a.InterlockedCompareExchange(offset, compare, value, result.old_value);
result.exchanged = result.old_value == compare;
return result;
}
[numthreads(16, 1, 1)]
void main() {
uint value = 42u;
atomic_compare_exchange_result_u32 result = aatomicCompareExchangeWeak(0u, 0u, value);
return;
}