Hi John,

> Am 13.08.2016 um 01:48 schrieb John Rose <john.r.r...@oracle.com>:
> This does lead me to an extra thought:  I think IM's could be given the 
> capability to have multiple entry points.  This would allow a number of 
> interesting applications, starting with exception handling that appeals to a 
> helper object, instead of a handler table and some special verifier rules.
> Immediately beyond that, although now I'm being a Mission Creep, if an IM has 
> multiple entry points for exception handling, it could also use these entry 
> points for frame resumption, as described by Ron Pressler in a previous 
> JVMLS, and Andrey Breslav this year.  (That leads to the question of how an 
> IM can yield to an suspension point, a very good question.  And something 
> that a helper object can help with.  And so on.  This might help us do fibers 
> experiments more quickly.)

multiple entry points would also, FWIW, enable OSR.

How to invoke a method with a specific entry point? Via Indy, with an extra 

The handler table that would go away if exception handling was conveniently 
pushed to a helper object would make a proud reappearance in the form of a 
valid entry point table. We don't want arbitrary jumps into the middle of 
things. :-)




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