On Mar 13, 2018, at 4:42 PM, Paul Sandoz <paul.san...@oracle.com> wrote:
> Given how trivial the changes are it looks ok, but not sure it really matters > in practice. Nor do I. > > — > > Note that it’s possible to selectively disable intrinsics. For future > reference, when you want to avoid copying code if you happen to benchmark > intrinsics in the future: > > -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_numberOfLeadingZeros_i Yes, I knew about that. > But you have to know the intrinsic name, you can find ‘em here: > > > http://hg.openjdk.java.net/jdk/jdk/file/63eceefeb347/src/hotspot/share/classfile/vmSymbols.hpp#l805 This latter is very helpful, thanks. Brian
