http://cr.openjdk.java.net/~vlivanov/8234923/webrev.00/
https://bugs.openjdk.java.net/browse/JDK-8234923
The fix for 8234401 is incomplete: though it does notify the JVM about
call site target update (by calling setTargetNormal [2]), on JVM side
JITs skip nmethod dependencies for ConstantCallSites irrespective of
whether they are fully initialized or not. So, affected nmethods aren't
invalidated.
The fix is to make JITs aware about initialization status of
ConstantCallSite instance by inspecting its isFrozen field and register
proper nmethod dependency if a CallSite is being initialized.
Testing: tier1-6
Best regards,
Vladimir Ivanov
[1]
https://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2019-November/036019.html
[2] https://hg.openjdk.java.net/jdk/jdk/rev/a6e25566cb56#l1.26
