On Mon, 12 Jul 2021 17:59:32 GMT, Brian Burkhalter <b...@openjdk.org> wrote:
>> Please consider this change to make the `float` and `double` versions of >> `java.lang.Math.abs()` branch-free. > > Brian Burkhalter has refreshed the contents of this pull request, and > previous commits have been removed. The incremental views will show > differences compared to the previous content of the PR. I wonder when this improvement actually takes place. I see that there's equivalent asm [generated](https://github.com/openjdk/jdk/blob/87d2761f1b4572633de020b2d4681918c6f10f06/src/hotspot/cpu/x86/x86.ad#L3215) for x86 for 10 years already. Why the intrinsified version doesn't work on Linux, so changes in Java result in performance improvement? Just curious. Thanks. ------------- PR: https://git.openjdk.java.net/jdk/pull/4711
