------- Additional Comments From stevenb at suse dot de 2005-03-12 21:54 ------- Subject: Re: [3.3/3.4 regression] pessimization of "goto *"
Combine runs before register allocation. You cannot run it after register allocation. I don't think you can run it twice, even. And no, after register allocation you are not magically going to win back that register. Tough luck. Given your numbers, replacing the reg with its known value might still be a win. But I'm not going to do it ;-) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15242
