Jonah Williams 5b67468e21 [Impeller] Compute ContextContentOptions key via bit manipulating (instead of hashing each property). (flutter/engine#48902) ...

The hash function we use for pipeline hashncash is actually pretty slow. Since all of the properties we hash on fit in 64 bits, we can compute a hash value directly. From local benchmarking this is about twice as fast, which still leaves quite a bit of room for future improvement (faster hashmap? not using a hashmap at all?)

2023-12-13 19:57:06 +00:00

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src/flutter

[Impeller] Compute ContextContentOptions key via bit manipulating (instead of hashing each property). (flutter/engine#48902)

2023-12-13 19:57:06 +00:00