------- Additional Comments From kazu at cs dot umass dot edu 2004-12-21 08:07 ------- Can we do something like the following?
Avoid creating multiple entries to into a loop before the loop optimizations run. Try to thread every edge after the loop optimizations run. The loop optimizers probably don't like irreducible loops, but I guess the real CPU doesn't care about them, and if we can skip some conditional jumps, that might be good. I don't know if this idea is any good, but just a thought. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19098
