On Tue, 7 Jun 2022 17:14:18 GMT, Quan Anh Mai <d...@openjdk.java.net> wrote:
> Hi, > > This patch implements intrinsics for `Integer/Long::compareUnsigned` using > the same approach as the JVM does for long and floating-point comparisons. > This allows efficient and reliable usage of unsigned comparison in Java, > which is a basic operation and is important for range checks such as > discussed in #8620 . > > Thank you very much. I have added a benchmark for the intrinsic. The result is as follows, thanks a lot: Before After Benchmark (size) Mode Cnt Score Error Score Error Units Integers.compareUnsigned 500 avgt 15 0.527 ± 0.002 0.498 ± 0.011 us/op Longs.compareUnsigned 500 avgt 15 0.677 ± 0.014 0.561 ± 0.006 us/op ------------- PR: https://git.openjdk.java.net/jdk/pull/9068