On Tue, Apr 2, 2013 at 11:24 AM, Mike Duigou <mike.dui...@oracle.com> wrote:
> > On Apr 2 2013, at 10:55 , Martin Buchholz wrote: > > > Thanks for the research. > > It seems like hotspot is recognizing and optimizing fill loops, rather > than > > intrinsifying calls to Arrays.fill itself (good!). > > Why wouldn't doing both be better? > > If hotspot recognizes and optimizes fill loops, Arrays.fill is optimized "for free". > > Anyways, I'd still like the "simple" fill loops in ArrayList to stay > > unchanged. Using Arrays.fill is only slightly more readable. > > Part of the goal of the change was to make the intent clearer. I'll > improve the comments instead. ArrayList is one of those classes that are important for educational reasons. Studying it will be part of many peoples' university education. So I applaud efforts to improve clarity. But I think the fill loops are sufficiently clear as they stand.
