op_pmreplstart cPMOP->op_pmreplstart opindex
op_pmnext *(OP**)&cPMOP->op_pmnext opindex
#ifdef USE_ITHREADS
-op_pmstashpv cPMOP->op_pmstashpv pvindex
+op_pmstashpv cPMOP pvindex x
op_pmreplrootpo cPMOP->op_pmreplroot OP*/PADOFFSET
#else
op_pmstash *(SV**)&cPMOP->op_pmstash svindex