LISA auto/LB-GWW+R-Dd+R-Oc+R-Dd+R-A
(*
* Result: Maybe
* P0 GWW: Never->Maybe: Should rel-acq provide any global transitivity?
* P1-P2 rf R-Oc: Note lack of C11 guarantee, control dependency
* P2 Oc,R: Note lack of C11 guarantee
*)
{
0:r3=x2; x1=y1; 2:r4=1; 2:r3=x4; x3=y3;
}
P0 | P1 | P2 | P3 | P4 | P5 ;
w[once] u0 3 | r[deref] r1 x1 | r[once] r1 x2 | r[deref] r1 x3 | r[acquire] r1 x4 | r[once] r1 v0 ;
w[release] x1 r3 | w[release] r1 1 | mov r4 (neq r1 r4) | w[release] r1 1 | w[once] v0 1 | f[mb] ;
| | b[] r4 CTRL2 | | | r[once] r2 u0 ;
| | w[release] x3 r3 | | | ;
| | CTRL2: | | | ;
Observed
5:r2=0; 5:r1=1; 4:r1=1; 3:r1=x4; 2:r1=1; 1:r1=x2;