hg: jdk/sandbox: 4 new changesets

[chris.hegarty at oracle.com]

Changeset: d88223a1963f
Author:    stefank
Date:      2020-09-02 11:13 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/d88223a1963f

8252513: ZGC: Contiguous memory reservation probing is broken for TB heap sizes
Reviewed-by: eosterlund, pliden

! src/hotspot/share/gc/z/zVirtualMemory.cpp

Changeset: 8a06b3ecb880
Author:    stefank
Date:      2020-09-02 11:13 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/8a06b3ecb880

8252514: ZGC: Physical memory splitting is broken
Reviewed-by: eosterlund, pliden

! src/hotspot/share/gc/z/zPhysicalMemory.cpp

Changeset: 5975becce4a3
Author:    stefank
Date:      2020-09-02 11:13 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/5975becce4a3

8252589: Code duplication in ParallelSPCleanupTask
Reviewed-by: shade, dholmes

! src/hotspot/share/runtime/safepoint.cpp

Changeset: a03acefd254d
Author:    stefank
Date:      2020-09-02 11:13 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/a03acefd254d

8252656: Replace RegisterArrayForGC mechanism with plain Handles
Reviewed-by: coleenp, tschatzl, dholmes

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp