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authorbors <bors@rust-lang.org>2023-02-13 04:06:04 +0000
committerbors <bors@rust-lang.org>2023-02-13 04:06:04 +0000
commit96834f0231277e8feb8dcf185b2af082ad2e39f6 (patch)
tree46bc6d81fa66df61191983401a960844b78ddfe0 /tests/rustdoc-js-std/parser-errors.js
parent7740f9a571b3c6510607b17b29c81eeb24a7c79a (diff)
parent5eff2645335e86f714a92a592f81936fead1f6a4 (diff)
downloadrust-96834f0231277e8feb8dcf185b2af082ad2e39f6.tar.gz
Auto merge of #107191 - Voultapher:reverse-timsort-scan-direction, r=thomcc
Reverse Timsort scan direction Another PR in the series of stable sort improvements. Best reviewed by looking at the individual commits. The main perf gain here is for fully ascending (sorted) or reversed inputs for cheap to compare types such as `u64`, these see a ~1.5x speedup. ![timsort_evo2_hot_u64_10k](https://user-images.githubusercontent.com/6864584/213913351-cfdf452f-a37c-4bc6-a811-d10c60e66eca.png) ![timsort_evo2_hot_string_10k](https://user-images.githubusercontent.com/6864584/213913354-d9cc395a-2b48-4f54-b687-09174b9e35ce.png) Types such as string with indirect pre-fetching see only minor changes. Further speedups are planned in future PRs so, I wouldn't spend too much time for benchmarks here.
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