RWByteAddressBuffer sb_rw : register(u0); int sb_rwatomicExchange(uint offset, int value) { int original_value = 0; sb_rw.InterlockedExchange(offset, value, original_value); return original_value; } RWByteAddressBuffer prevent_dce : register(u0, space2); void atomicExchange_f2e22f() { int res = sb_rwatomicExchange(0u, 1); prevent_dce.Store(0u, asuint(res)); } void fragment_main() { atomicExchange_f2e22f(); return; } [numthreads(1, 1, 1)] void compute_main() { atomicExchange_f2e22f(); return; }