# an example with reducible control # flow graph that exposes poor # handling of looping constructs @start %ten = copy 10 %dum = copy 0 # dummy live-through temprorary @loop %alt = phi @start 0, @left %alt1, @right %alt1 %cnt = phi @start 100, @left %cnt, @right %cnt1 %alt1 = sub 1, %alt jez %alt1, @left, @right @left %x = phi @loop 10, @left %x1 %x1 = sub %x, 1 %z = copy %x jez %z, @loop, @left @right %cnt1 = sub %cnt, %ten jez %cnt1, @end, @loop @end %ret = add %cnt, %dum ret