On Thu, Jul 9, 2015 at 11:37 AM, Bin Cheng <bin.ch...@arm.com> wrote: > Hi, > When I going through the code, I spot this minor issue. When > start_cand/orig_cand/third_cand have overall cost in order like "start_cand > < third_cand < orig_cand", GCC chooses the third_cand instead of start_cand > because we haven't set best_cost for start_cand. This is an obvious fix to > it. > > So is it OK?
Ok. I wonder if you have a testcase which this improves? Richard. > > 2015-07-08 Bin Cheng <bin.ch...@arm.com> > > * tree-ssa-loop-ivopts.c (iv_ca_narrow): Update best_cost > if start candidate has lower cost.
