On Sun, 2005-09-11 at 16:41 +0200, Zdenek Dvorak wrote: > No, it unfortunately cannot help. The new blocks are placed before the > loop, and jump threading only occurs inside the loop, so the sizes of > copied blocks remain small. Yea, you're right. It's been a while since I looked at this...
The other alternative is to simply cap the number of iterations when backedges are threaded. > I guess the only real fix is to remove jump threading from dom and make > a separate, non-iterative pass for it. Which of course is quite a bit > of work. It is certainly a lot of work. I've got bits and pieces of that around here, but nothing terribly useful yet. jeff
