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| author | bors <bors@rust-lang.org> | 2024-01-27 08:16:49 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-01-27 08:16:49 +0000 |
| commit | 8b6a431b3d3066a54dffc7f16bf658cf5690efc9 (patch) | |
| tree | 0d096553663ab4e9c4ea2e7f995161d612007889 /compiler/rustc_pattern_analysis/src/usefulness.rs | |
| parent | 04521fd10e6eefb113ca1cefd02862599fd08640 (diff) | |
| parent | 77f31ef2b29e0ff16b9db8907327741c057bea8e (diff) | |
| download | rust-8b6a431b3d3066a54dffc7f16bf658cf5690efc9.tar.gz rust-8b6a431b3d3066a54dffc7f16bf658cf5690efc9.zip | |
Auto merge of #111379 - nyurik:intersperse-speed-up, r=cuviper
Boost iterator intersperse(_with) performance I did some benchmark digging into the `intersperse` and `intersperse_with` code as part of [this discussion](https://internals.rust-lang.org/t/add-iterate-with-separators-iterator-function/18781/13), and as a result I optimized them a bit, without relying on the peekable iterator. See also [full benchmark repo](https://github.com/nyurik/intersperse_perf) Benchmarks show near 2x performance improvements with the simple `sum` [benchmarks](https://gist.github.com/nyurik/68b6c9b3d90f0d14746d4186bf8fa1e2): 
Diffstat (limited to 'compiler/rustc_pattern_analysis/src/usefulness.rs')
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