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Make ASCII case conversions more than 4× faster #59283

Merged
merged 11 commits into from
Mar 28, 2019
Merged

Make ASCII case conversions more than 4× faster #59283

merged 11 commits into from
Mar 28, 2019

Commits on Mar 18, 2019

  1. Add benchmarks for [u8]::make_ascii_uppercase

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  2. Make u8::to_ascii_lowercase and to_ascii_uppercase branchless

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  3. Add benchmark for not-quite-correct “fake SIMD” make_ascii_uppercase

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  4. Tidy

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  5. Rename src/libcore/benches/ascii_case.rs to ascii.rs

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  6. Add benchmarks for u8::is_ascii*

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  7. Remove ASCII_CHARACTER_CLASS table, use match with range patterns i… 

    …nstead.
    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  8. Benchmark more possibles impls of [u8]::make_ascii_uppercase

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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  9. Simplify u8::to_ascii_{upp,low}ercase while keeping it fast

    @SimonSapin
    SimonSapin committed Mar 18, 2019
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Commits on Mar 19, 2019

  1. ASCII uppercase: add "subtract shifted bool" benchmark

    @SimonSapin
    SimonSapin committed Mar 19, 2019
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  2. ASCII uppercase: add "subtract multiplied bool" benchmark

    @SimonSapin
    SimonSapin committed Mar 19, 2019
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