JDK-8004330 : Add missing Unsafe entry points for addAndGet() family
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2012-12-03
  • Updated: 2013-04-30
  • Resolved: 2012-12-21
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JDK 8 Other
8 b70Fixed hs25Fixed
Related Reports
Cloners :  
JDK-8005966 - Add missing Unsafe entry points for addAndGet() family
Relates :  
JDK-7023898 - Intrinsify AtomicLongFieldUpdater.getAndIncrement()
Description
This is missing from JDK-7023898. 

The VM support for intrinsifying Unsafe calls in question is there, but no methods is exposed in Unsafe to link against. Should add:

public int getAndAddInt(Object o, long offset, int delta) 
public long getAndAddLong(Object o, long offset, long delta)
public long getAndAddLong(Object o, long offset, long delta) 
public int getAndSetInt(Object o, long offset, int x) 
public long getAndSetLong(Object o, long offset, long x) 
public Object getAndSetObject(Object o, long offset, Object x)