Andreas Kling a677d96b8f LibJS: Make GetById cache polymorphic ...

Instead of monomorphic (1 shape), GetById inline caches are now
polymorphic (4 shapes).

This improves inline cache hit rates greatly on most web JavaScript.
For example, Speedometer 2.1 sees 88% -> 97% cache hit rate improvement.

1.71x speedup on MicroBench/pic-get-own.js
1.82x speedup on MicroBench/pic-get-pchain.js

2025-05-07 00:27:11 +02:00

3.5 KiB

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