[PATCH] D20017: Aggressive choosing best loop top

[Balaram Makam via llvm-commits]

bmakam added a subscriber: bmakam.
bmakam added a comment.

Thanks for working on this. This pattern is also seen in spec2006/mcf, I will test this patch on AArch64/Kryo and let you know the results. FWIW, I think this is always good when the Loop has a single latch only, but for loops with multiple latches it might not always be beneficial without knowing the actual branch probabilities.


http://reviews.llvm.org/D20017