336   saint_t limit, next;  in tr_introsort()  local
339   for(ssize = 0, limit = tr_ilg(last - first);;) {  in tr_introsort()
341     if(limit < 0) {  in tr_introsort()
342       if(limit == -1) {  in tr_introsort()
363             last = a, limit = tr_ilg(a - first);  in tr_introsort()
365             first = b, limit = tr_ilg(last - b);  in tr_introsort()
367             STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
372             first = b, limit = tr_ilg(last - b);  in tr_introsort()
374             last = a, limit = tr_ilg(a - first);  in tr_introsort()
376             STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
379       } else if(limit == -2) {  in tr_introsort()
388         STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
405               ISAd += incr, last = a, limit = next;  in tr_introsort()
409                 first = a, limit = -3;  in tr_introsort()
411                 ISAd += incr, last = a, limit = next;  in tr_introsort()
417               first = a, limit = -3;  in tr_introsort()
419               STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
423           STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
431       limit = -3;  in tr_introsort()
435     if(limit-- == 0) {  in tr_introsort()
440       limit = -3;  in tr_introsort()
464               STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
470               ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
474               STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
478               STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
479               ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
482             STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
483             STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
484             ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
490               STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
496               ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
500               STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
504               STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
505               ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
508             STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
509             STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
510             ISAd += incr, first = a, last = b, limit = next;  in tr_introsort()
517             STACK_PUSH5(ISAd, b, last, limit, trlink);  in tr_introsort()
522             STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
526             STACK_PUSH5(ISAd, first, a, limit, trlink);  in tr_introsort()
531             STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()
537         limit = tr_ilg(last - first), ISAd += incr;  in tr_introsort()
540         STACK_POP5(ISAd, first, last, limit, trlink);  in tr_introsort()