RFR(M): 8200303: C2 should leverage profiling for lookupswitch/tableswitch

Vladimir Kozlov vladimir.kozlov at oracle.com
Mon Apr 9 14:42:32 UTC 2018

And since everything passed we can push webrev.02.
Let me re-test it with current jdk/hs.


On 4/9/18 7:40 AM, Vladimir Kozlov wrote:
> I did say:
>  > Please, file a bug.
> I never asked to fix it in current changes. We may never fix it due to 
> limited resources :( but we will have record. It is definitely not high 
> priority.
> Thanks,
> Vladimir
> On 4/9/18 4:02 AM, Roland Westrelin wrote:
>>> But in your case I thouight just add MachJumpNode class and its supers
>>> MachConstantNode and MachTypeNode.
>> MachJumpNode in the SA would need code to read the probabilities from
>> the MachJumpNode in the VM process (that is, read the array address and
>> then each elements, one per existing projection of the
>> MachJumpNode). That doesn't sound straightforward (and high priority
>> either). I'd like to file a bug for that and take care of it later. What
>> do you think?
>> Roland.

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