1C ISA2+poonceonces 2 3(* 4 * Result: Sometimes 5 * 6 * Given a release-acquire chain ordering the first process's store 7 * against the last process's load, is ordering preserved if all of the 8 * smp_store_release() invocations are replaced by WRITE_ONCE() and all 9 * of the smp_load_acquire() invocations are replaced by READ_ONCE()? 10 *) 11 12{ 13 int x; 14 int y; 15 int z; 16} 17 18P0(int *x, int *y) 19{ 20 WRITE_ONCE(*x, 1); 21 WRITE_ONCE(*y, 1); 22} 23 24P1(int *y, int *z) 25{ 26 int r0; 27 28 r0 = READ_ONCE(*y); 29 WRITE_ONCE(*z, 1); 30} 31 32P2(int *x, int *z) 33{ 34 int r0; 35 int r1; 36 37 r0 = READ_ONCE(*z); 38 r1 = READ_ONCE(*x); 39} 40 41exists (1:r0=1 /\ 2:r0=1 /\ 2:r1=0) 42