Function s_sleep 

pub fn s_sleep<const COUNT: u32>()

🔬This is a nightly-only experimental API. (stdarch_amdgpu #149988)

Available on target_arch=amdgpu only.

Sleeps for approximately COUNT * 64 cycles.

COUNT must be a constant. Only the lower 7 bits of COUNT are used. If COUNT == 0x8000, sleep forever until woken up, or killed.