Test m5dl

PPC m5dl (PPCMFiveDepLwSync)
"Hexa test: ST ; ST || LD ; LD, see also b?.litmus tests"
{
 0:r1=1; 0:r4=x; 0:r5=y; 1:r4=x; 1:r5=y;
 2:r2=2; 2:r4=x;
 3:r2=2; 3:r5=y;
}

P0           |P1           |P2           |P3           ;
stw r1,0(r4) |lwz r1,0(r5) |stw r2,0(r4) |stw r2,0(r5) ;
sync         |xor r9,r1,r1 |             |             ;
stw r1,0(r5) |lwzx r2,r9,r4|             |             ;
locations [1:r1; 1:r2; x; y;]
exists (
(1:r1=2 /\  1:r2=0 /\  x=1 /\  y=2) \/
(1:r1=2 /\  1:r2=0 /\  x=2 /\  y=2) \/
(1:r1=2 /\  1:r2=2 /\  x=1 /\  y=2)
)