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| author | bors <bors@rust-lang.org> | 2022-04-28 09:27:21 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2022-04-28 09:27:21 +0000 |
| commit | 3bfeffd55bbc7d653d2df7ad265746bafe595a96 (patch) | |
| tree | 5153d315469d8f0471d83c73e272089c99b84e78 /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp | |
| parent | 71cd460616dcefd9249aa6c4ddd4c84ba1d2c476 (diff) | |
| parent | c126f7fc8bf9e2abc0cac1fae40d04f4cf21e4d0 (diff) | |
| download | rust-3bfeffd55bbc7d653d2df7ad265746bafe595a96.tar.gz rust-3bfeffd55bbc7d653d2df7ad265746bafe595a96.zip | |
Auto merge of #95904 - paolobarbolini:vecdeque-specextend, r=the8472
Add VecDeque::extend from vec::IntoIter and slice::Iter specializations Inspired from the [`Vec` `SpecExtend` implementation](https://github.com/rust-lang/rust/blob/027a232755fa9728e9699337267f6675dfd0a8ba/library/alloc/src/vec/spec_extend.rs), but without the specialization for `TrustedLen` which I'll look into in the future. Should help #95632 and https://github.com/KillingSpark/zstd-rs/pull/17 ## Benchmarks Before ``` test vec_deque::bench_extend_bytes ... bench: 862 ns/iter (+/- 10) test vec_deque::bench_extend_vec ... bench: 883 ns/iter (+/- 19) ``` After ``` test vec_deque::bench_extend_bytes ... bench: 8 ns/iter (+/- 0) test vec_deque::bench_extend_vec ... bench: 24 ns/iter (+/- 1) ```
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp')
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