search for: pr18688

...g of the SSA graph. I also think it is completely incompatible with LCSSA in its current form. It just isn't built in a way that would be friendly to preserving this kind of information. I think that's OK, but it means that I think we *can't* mix the two solutions effectively long term. PR18688 is the current manifestation of this madness. Consistently, I am finding that doing incremental update and maintaining canonical form for loops is *substantially* simpler with LoopSimplify+LCSSA. The combination is just incredibly powerful. It also has a huge advantage in the way it is structures...