On Thu, 22 Aug 2024 09:09:15 GMT, Tobias Hartmann <thartm...@openjdk.org> wrote:

>> A pin_count overflow/underflow should be a per-thread condition, not global. 
>>  If there is nothing in the nmethod to be invalidated, maybe this should be 
>> `Action_none`?
>
> Right, that would make sense to me because 
> `Deoptimization::Action_reinterpret` might also invalidate the nmethod.

The functional requirement I have is that the branch takes an uncommon trap and 
restarts / re-executes the same method the interpreter, because that version 
enters the VM where an IllegalStateException is thrown. 

I don't need the compiled method to be invalidated, only that an attempt that 
over/underflows (thread-local) restarts in the interpeter for the exception to 
be thrown. Is Action_none better suited for this purpose?

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PR Review Comment: https://git.openjdk.org/jdk/pull/20664#discussion_r1726665198

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