Test MP+lwsync+addr+3W

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PPC MP+lwsync+addr+3W
"MP, with non-zero fr"
Prefetch=0:x=F,0:y=W,1:y=F,1:x=T
{
0:r2=x; 0:r4=y;
1:r2=y; 1:r5=x;
2:r2=x;
3:r2=x;
}
 P0           | P1            | P2           | P3           ;
 li r1,3      | lwz r1,0(r2)  | li r1,1      | li r1,2      ;
 stw r1,0(r2) | xor r3,r1,r1  | stw r1,0(r2) | stw r1,0(r2) ;
              |               | sync         | sync         ;
 lwsync       | lwzx r4,r3,r5 | lwz r3,0(r2) | lwz r3,0(r2) ;
 li r3,1      |               |              |              ;
 stw r3,0(r4) |               |              |              ;
locations [1:r1; 1:r4;]
exists
 (1:r1=1 /\ 2:r3=2 /\ 3:r3=3 /\ (1:r4=0 \/ 1:r4=1 \/ 1:r4=2))