On Fri, 30 Aug 2024 13:53:37 GMT, Francesco Nigro <d...@openjdk.org> wrote:
> this can be u * 0xFFFFFFFFFFFFL if value != 0 and just 0L if not: not sure if > fast(er), need to measure. > > Most of the time filling is happy with 0 since zeroing is the most common case It's a clever trick. However, I was looking at similar tricks and found that the time spent here is irrelevant (e.g. I tried to always force `0` as the value, and couldn't see any difference). ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/20712#discussion_r1738762266
