git: openjdk/loom: fibers: ThreadIdentifier to use cmpxchg for 64-bit values

[duke]

Changeset: b18e0e84
Author:    mgronlun <markus.gronlund at oracle.com>
Date:      2022-03-22 17:54:40 +0000
URL:       https://git.openjdk.java.net/loom/commit/b18e0e84a27c2f0118a6791576f91762dd9bfe46

ThreadIdentifier to use cmpxchg for 64-bit values

! src/hotspot/share/jfr/support/jfrThreadLocal.cpp
! src/hotspot/share/prims/jvm.cpp
+ src/hotspot/share/runtime/threadIdentifier.cpp
+ src/hotspot/share/runtime/threadIdentifier.hpp
- src/hotspot/share/runtime/threadIdentifiers.cpp
- src/hotspot/share/runtime/threadIdentifiers.hpp