GET_STACK_INDEX   600 regexec.c        mem_start_stk[mnum] = GET_STACK_INDEX(stk);\
GET_STACK_INDEX   612 regexec.c        mem_end_stk[mnum] = GET_STACK_INDEX(stk);\
GET_STACK_INDEX  2114 regexec.c            mem_start_stk[mem] = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2125 regexec.c      	mem_start_stk[mem] = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2514 regexec.c      	repeat_stk[mem] = GET_STACK_INDEX(stk);
GET_STACK_INDEX  2531 regexec.c      	repeat_stk[mem] = GET_STACK_INDEX(stk);
GET_STACK_INDEX  2569 regexec.c            si = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2603 regexec.c            si = GET_STACK_INDEX(stkp);