copy_opt_exact_info 4686 regcomp.c          copy_opt_exact_info(now, alt);
copy_opt_exact_info 4702 regcomp.c          copy_opt_exact_info(now, alt);
copy_opt_exact_info 4905 regcomp.c          copy_opt_exact_info(&to->expr, &add->expr);
copy_opt_exact_info 5105 regcomp.c      	    copy_opt_exact_info(&opt->expr, &nopt.exb);
copy_opt_exact_info 5107 regcomp.c      	    copy_opt_exact_info(&opt->expr, &nopt.exm);