hg: jdk/sandbox: 2 new changesets

[chris.hegarty at oracle.com]

Changeset: d0ff3ee1bf40
Author:    aph
Date:      2020-03-11 12:38 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/d0ff3ee1bf40

8240829: Use a fast O(1) algorithm for exact_log2
Reviewed-by: jrose, redestad

! src/hotspot/share/utilities/powerOfTwo.hpp
! test/hotspot/gtest/utilities/test_powerOfTwo.cpp

Changeset: f9893c227e12
Author:    aph
Date:      2020-03-11 15:02 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/f9893c227e12

Merge