OP_CALL           409 regcomp.c        r = add_opcode(reg, OP_CALL);
OP_CALL          1315 regcomp.c            r = add_opcode(reg, OP_CALL);
OP_CALL          6240 regcomp.c        { OP_CALL,                 "call",                 ARG_ABSADDR },
OP_CALL          3038 regexec.c          CASE(OP_CALL)  MOP_IN(OP_CALL);