[10] RFR: 8178384: Reduce work in java.lang.invoke initializers

[Remi Forax]

Currently playing with a pattern matching representation for Amber, if think we need a form of array constant that does not require a bootstrap method.
Afaik, an array of any existing constants does not need a Java code to construct itself.

Rémi 


On April 10, 2017 6:18:07 PM GMT+02:00, Paul Sandoz <paul.sandoz at oracle.com> wrote:
>+1
>
>These named functions really wanna be LDC’ed but i suspect using
>constant dynamic + representation in source (when available) might
>result in it’s own bootstrap issues, still it would be interesting to
>try when available.
>
>Paul.
>
>> On 10 Apr 2017, at 07:09, Claes Redestad <claes.redestad at oracle.com>
>wrote:
>> 
>> Hi,
>> 
>> profiling initializers in java.lang.invoke shows we're still doing
>various things during
>> class initialization which could be done lazily or not at all. The
>proposed patch
>> reduce bytecode executed, memory churn and retained heap footprint
>when
>> initializing java.lang.invoke:
>> 
>> Webrev: http://cr.openjdk.java.net/~redestad/8178384/jdk.01/
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8178384
>> 
>> Testing: java.lang.invoke jtreg tests, sanity performance testing
>> 
>> Thanks!
>> 
>> /Claes

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