[tree-ssa] RFC: Making control flow more explicit

[Zdenek Dvorak]

Hello,

> PS.  Hmm now I think of it, how are those numbers possible?  Didn't
> these patches break the loop optimizer???

yes, but I have found out recently that you have already broken it
before me :-).  The code you currently produce makes the loops not to
be recognized correctly by some of loop optimizations (loop header
copying, unroller).

Still I am surprised by the numbers, IMHO it should not work that well.

Zdenek