blob: a19a5806e1ad67805a4c90dc6b9a038e6bfa90fa [file] [log] [blame]
RWByteAddressBuffer a : register(u0, space0);
struct atomic_compare_exchange_weak_ret_type {
uint old_value;
bool exchanged;
};
atomic_compare_exchange_weak_ret_type tint_atomicCompareExchangeWeak(RWByteAddressBuffer buffer, uint offset, uint compare, uint value) {
atomic_compare_exchange_weak_ret_type result=(atomic_compare_exchange_weak_ret_type)0;
buffer.InterlockedCompareExchange(offset, compare, value, result.old_value);
result.exchanged = result.old_value == compare;
return result;
}
[numthreads(16, 1, 1)]
void main() {
uint value = 42u;
const atomic_compare_exchange_weak_ret_type result = tint_atomicCompareExchangeWeak(a, 0u, 0u, value);
return;
}