GET_STACK_INDEX   697 regexec.c        mem_start_stk[mnum] = GET_STACK_INDEX(stk);\
GET_STACK_INDEX   709 regexec.c        mem_end_stk[mnum] = GET_STACK_INDEX(stk);\
GET_STACK_INDEX  2501 regexec.c            mem_start_stk[mem] = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2511 regexec.c      	mem_start_stk[mem] = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2882 regexec.c      	repeat_stk[mem] = GET_STACK_INDEX(stk);
GET_STACK_INDEX  2898 regexec.c      	repeat_stk[mem] = GET_STACK_INDEX(stk);
GET_STACK_INDEX  2934 regexec.c            si = GET_STACK_INDEX(stkp);
GET_STACK_INDEX  2967 regexec.c            si = GET_STACK_INDEX(stkp);