hg: jdk/jdk: 8234331: Add robust and optimized utility for rounding up to next power of two

[claes.redestad at oracle.com]

Changeset: 0edc7fd0d7a3
Author:    redestad
Date:      2019-12-06 18:05 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/0edc7fd0d7a3

8234331: Add robust and optimized utility for rounding up to next power of two
Reviewed-by: eosterlund, stuefe, jrose

! src/hotspot/cpu/aarch64/gc/z/zGlobals_aarch64.cpp
! src/hotspot/cpu/x86/gc/z/zGlobals_x86.cpp
! src/hotspot/share/gc/z/zForwarding.cpp
! src/hotspot/share/gc/z/zHeuristics.cpp
! src/hotspot/share/gc/z/zMark.cpp
! src/hotspot/share/gc/z/zUtils.inline.hpp
! src/hotspot/share/libadt/dict.cpp
! src/hotspot/share/libadt/vectset.cpp
! src/hotspot/share/opto/block.cpp
! src/hotspot/share/opto/loopnode.cpp
! src/hotspot/share/opto/node.cpp
! src/hotspot/share/opto/phaseX.cpp
! src/hotspot/share/runtime/threadSMR.cpp
! src/hotspot/share/utilities/count_leading_zeros.hpp
! src/hotspot/share/utilities/growableArray.hpp
+ src/hotspot/share/utilities/powerOfTwo.hpp
- test/hotspot/gtest/gc/z/test_zUtils.cpp
! test/hotspot/gtest/utilities/test_count_leading_zeros.cpp
+ test/hotspot/gtest/utilities/test_powerOfTwo.cpp