OP_NULL_CHECK_END_MEMST_PUSH  395 regcomp.c            r = add_opcode(reg, OP_NULL_CHECK_END_MEMST_PUSH);
OP_NULL_CHECK_END_MEMST_PUSH 6230 regcomp.c        { OP_NULL_CHECK_END_MEMST_PUSH,"null-check-end-memst-push", ARG_MEMNUM  },
OP_NULL_CHECK_END_MEMST_PUSH 2773 regexec.c          CASE(OP_NULL_CHECK_END_MEMST_PUSH)
OP_NULL_CHECK_END_MEMST_PUSH 2774 regexec.c            MOP_IN(OP_NULL_CHECK_END_MEMST_PUSH);