RFR: 8188046: java.lang.Math.mutliplyHigh does not run in constant time

Roger Riggs rriggs at openjdk.java.net
Fri Jul 2 14:10:15 UTC 2021


On Thu, 1 Jul 2021 23:46:00 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Please consider this proposal to remove the fast path in `java.lang.Math.multiplyHigh()` the small performance improvement of which is eclipsed by the branch penalty.

Marked as reviewed by rriggs (Reviewer).

-------------

PR: https://git.openjdk.java.net/jdk/pull/4660


More information about the core-libs-dev mailing list