Test auto/LB-LWR+R-Oc+R-Oc+R-Oc+R-Oc

LISA auto/LB-LWR+R-Oc+R-Oc+R-Oc+R-Oc
(*
 * Result: Sometimes
 * P0-P1 rf R-Oc: Never->Maybe: Note lack of C11 guarantee, control dependency
 * P1 Oc,R: Note lack of C11 guarantee
 * P1-P2 rf R-Oc: Note lack of C11 guarantee, control dependency
 * P2 Oc,R: Note lack of C11 guarantee
 * P2-P3 rf R-Oc: Note lack of C11 guarantee, control dependency
 * P3 Oc,R: Note lack of C11 guarantee
 * P3-P4 rf R-Oc: Note lack of C11 guarantee, control dependency
 * P4 Oc,LWR: Maybe->Sometimes: Control dependencies do not order trailing reads
 *)
{
 1:r4=1; 2:r4=1; 3:r4=1; 4:r4=1;
}
 P0              | P1                 | P2                 | P3                 | P4                 ;
 w[once] u0 3    | r[once] r1 x1      | r[once] r1 x2      | r[once] r1 x3      | r[once] r1 x4      ;
 w[release] x1 1 | mov r4 (neq r1 r4) | mov r4 (neq r1 r4) | mov r4 (neq r1 r4) | mov r4 (neq r1 r4) ;
                 | b[] r4 CTRL1       | b[] r4 CTRL2       | b[] r4 CTRL3       | b[] r4 CTRL4       ;
                 | w[release] x2 1    | w[release] x3 1    | w[release] x4 1    | r[once] r2 u0      ;
                 | CTRL1:             | CTRL2:             | CTRL3:             | CTRL4:             ;
Observed
    4:r2=0; 4:r1=1; 3:r1=1; 2:r1=1; 1:r1=1;