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deps: update regex crate

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This update brings with it a new feature of the regex crate which will
now use SIMD optimizations automatically at runtime with no necessary
compile time flags. All that's needed is to enable the `unstable` feature.

Other crates, such as bytecount and encoding_rs, are still using the
old-style SIMD support, so we leave the simd-accel and avx-accel features.
However, the binaries we distribute on Github no longer have those
features enabled, which makes them truly portable.

Fixes #135
This commit is contained in:
Andrew Gallant
2018-03-10 14:02:06 -05:00
parent 7120f32258
commit 1f70e9187c
9 changed files with 42 additions and 24 deletions
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11
README.md
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@ -286,6 +286,14 @@ If you're a **Rust programmer**, ripgrep can be installed with `cargo`.
$ cargo install ripgrep
```
If you're using Rust nightly, then use
```
$ cargo install ripgrep --features unstable
```
to get SIMD optimizations.
ripgrep isn't currently in any other package repositories.
[I'd like to change that](https://github.com/BurntSushi/ripgrep/issues/10).
@ -312,7 +320,8 @@ RUSTFLAGS="-C target-cpu=native" cargo build --release --features 'simd-accel av
```
If your machine doesn't support AVX instructions, then simply remove
`avx-accel` from the features list. Similarly for SIMD.
`avx-accel` from the features list. Similarly for SIMD (which corresponds
roughly to SSE instructions).
### Running tests