Commit 7a715d74e06720c17d28ba7b4c3da0b583f8d1d3
2023-05-04T16:28:11
[layout] Cache subtable coverages in hb_map_t Proof-of-concept. Going to revert. Memory consumption is more than I like. It does speed up Roboto shaping another 15% though. Perhaps if we could add logic to choose which subtables to cache, this might be a useful approach.