On 11/25/13 02:11, Bin.Cheng wrote: > > Slightly tune to make iv cand choosing algorithm more accurate: > http://gcc.gnu.org/ml/gcc-patches/2013-11/msg01574.html It would help if you had some sample codes where this patch was useful. I can kind-of see what's going on, but I'm way too unfamiliar with the tree-IV code to review this change. Jeff