Test Z6.3+fencembreleaseonce+fencembonceonce+fencermbonceacquire

C Z6.3+fencembreleaseonce+fencembonceonce+fencermbonceacquire
Hash=b0e9ffad2e25cd476379de3b48d103e2
Cycle=FreAcquireRelease FenceMbdWWReleaseOnce WseOnceOnce FenceMbdWWOnceOnce RfeOnceOnce FenceRmbdRROnceAcquire
Relax=FreAcquireRelease
Safe=FenceMbdWW FenceRmbdRR RfeOnceOnce WseOnceOnce
Generator=diy7 (version 7.46+3)
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Ws Rf Fr
Orig=FenceMbdWWReleaseOnce WseOnceOnce FenceMbdWWOnceOnce RfeOnceOnce FenceRmbdRROnceAcquire FreAcquireRelease

{}


P0(int* x,int* y) {
  smp_store_release(x,1);
  smp_mb();
  WRITE_ONCE(*y,1);
}

P1(int* y,int* z) {
  WRITE_ONCE(*y,2);
  smp_mb();
  WRITE_ONCE(*z,1);
}

P2(int* x,int* z) {
  int r0 = READ_ONCE(*z);
  smp_rmb();
  int r1 = smp_load_acquire(x);
}

Observed
    y=2; 2:r1=0; 2:r0=1;

C11 equivalent:

C Z6.3+fencembreleaseonce+fencembonceonce+fencermbonceacquire
Hash=b0e9ffad2e25cd476379de3b48d103e2
Cycle=FreAcquireRelease FenceMbdWWReleaseOnce WseOnceOnce FenceMbdWWOnceOnce RfeOnceOnce FenceRmbdRROnceAcquire
Relax=FreAcquireRelease
Safe=FenceMbdWW FenceRmbdRR RfeOnceOnce WseOnceOnce
Generator=diy7 (version 7.46+3)
Prefetch=0:x=F,0:y=W,1:y=F,1:z=W,2:z=F,2:x=T
Com=Ws Rf Fr
Orig=FenceMbdWWReleaseOnce WseOnceOnce FenceMbdWWOnceOnce RfeOnceOnce FenceRmbdRROnceAcquire FreAcquireRelease

{}


P0(atomic_int* x,atomic_int* y) {
  atomic_store_explicit(x,1,memory_order_release);
  atomic_thread_fence(memory_order_seq_cst);
  atomic_store_explicit(y,1,memory_order_relaxed);
}

P1(atomic_int* y,atomic_int* z) {
  atomic_store_explicit(y,2,memory_order_relaxed);
  atomic_thread_fence(memory_order_seq_cst);
  atomic_store_explicit(z,1,memory_order_relaxed);
}

P2(atomic_int* x,atomic_int* z) {
  int r0 = atomic_load_explicit(z,memory_order_relaxed);
  atomic_thread_fence(memory_order_acq_rel);
  int r1 = atomic_load_explicit(x,memory_order_acquire);
}

exists (y=2 /\ 2:r0=1 /\ 2:r1=0)