bitset_merge     3331 lib/regexec.c        bitset_merge (acceptable, dests_ch[i]);
bitset_merge     3448 lib/regexec.c  	  bitset_merge (accepts, node->opr.sbcset);
bitset_merge     3453 lib/regexec.c  	    bitset_merge (accepts, dfa->sb_char);
bitset_merge     3466 lib/regexec.c  	    bitset_merge (accepts, utf8_sb_map);