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ARM NEON support (#32)
* Put something in the readme so we can have a PR * Add drone file * update build status * unguard for sse4.2 to allow rust to polyfill on older platforms * Add more simd tests * RFC: Neon support (pretty much working) (#35) * feat: neon support * feat: temp stub replacements for neon intrinsics (pending rust-lang/stdarch#792) * fix: drone CI rustup nightly * feat: fix guards, use rust stdlib for bit count operations * fix: remove double semicolon * feat: fancy generic generator functions, thanks @Licenser * Update extq intrinsics * Use simd-lite (#39) * Use simd-lite * Update badge * Update badge * Get rid of transmutes * Use NeonInit trait * vqsubq_u8 fix * vqsubq_u8 fix pt. 2 * use reexprted values from simd-lite * add simd-lite real version
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‎.drone.yml‎

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kind: pipeline
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name: test-on-avx2
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platform:
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arch: amd64
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steps:
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- name: test
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image: rust:1
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environment:
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RUSTFLAGS: '-C target-cpu=native'
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commands:
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- cargo build --verbose --all
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- cargo test --verbose --all
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---
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kind: pipeline
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name: test-on-sse42
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platform:
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arch: amd64
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steps:
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- name: test
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image: rust:1
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environment:
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RUSTFLAGS: '-C target-cpu=native -C target-feature=-avx2'
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commands:
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- cargo build --verbose --all
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- cargo test --verbose --all
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---
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kind: pipeline
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name: test-on-pre-sse42
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platform:
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arch: amd64
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steps:
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- name: test
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image: rust:1
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environment:
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RUSTFLAGS: '-C target-cpu=native -C target-feature=-avx2,-sse4.2'
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commands:
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- cargo build --verbose --all
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- cargo test --verbose --all
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---
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kind: pipeline
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name: test-on-arm64
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platform:
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arch: arm64
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steps:
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- name: test
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image: rust:1
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commands:
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- rustup default nightly
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- rustup update
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- cargo clean && cargo +nightly build --verbose --all --features neon
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- cargo +nightly test --verbose --all --features neon

‎Cargo.toml‎

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perfcnt = { version = "0.4", optional = true }
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getopts = { version = "0.2", optional = true }
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colored = { version = "1.7", optional = true }
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simd-lite = { version = "0.1.0", optional = true }
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[features]
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default = ["swar-number-parsing", "serde_impl"]
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# Support for ARM NEON SIMD
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neon = ["simd-lite"]
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# use 8 number at once parsing strategy
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swar-number-parsing = []
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# serde compatibility

‎README.md‎

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# SIMD Json for Rust   [![Build Status]][circleci.com] [![Windows Build Status]][appveyor.com] [![Latest Version]][crates.io]
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# SIMD Json for Rust   [![Build Status]][drone.io] [![Windows Build Status]][appveyor.com] [![Latest Version]][crates.io]
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[Build Status]: https://circleci.com/gh/Licenser/simdjson-rs/tree/master.svg?style=svg
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[circleci.com]: https://circleci.com/gh/Licenser/simdjson-rs/tree/master
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[Windows Build Status]: https://ci.appveyor.com/api/projects/status/0kf0v6hj5v2gite9?svg=true
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[Build Status]: https://cloud.drone.io/api/badges/simd-lite/simdjson-rs/status.svg
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[drone.io]: https://cloud.drone.io/simd-lite/simdjson-rs
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[Windows Build Status]: https://ci.appveyor.com/api/projects/status/ffi2ese7dxse6pb8?svg=true
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[appveyor.com]: https://ci.appveyor.com/project/Licenser/simdjson-rs
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[Latest Version]: https://img.shields.io/crates/v/simd-json.svg
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[crates.io]: https://crates.io/crates/simd-json
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To be able to take advantage of simdjson your system needs to be SIMD compatible. This means to compile with native cpu support and the given features. Look at [The cargo config in this repository](.cargo/config) to get an example.
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simd-json.rs supports AVX2, SSE4.2 and NEON.
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### jemalloc
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If you are writing performance centric code, make sure to use jemalloc and not the system allocator (which has now become default in rust), it gives a very noticeable boost in performance.

‎data/fail/fail70.json‎

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["string contains bad UTF-8 €"]

‎data/fail/fail71.json‎

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["contains bad UTF-8 �"]

‎data/fail/fail72.json‎

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["contains bad UTF-8 �"]

‎data/fail/fail73.json‎

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["bad UTF-8 �"]

‎data/fail/fail74.json‎

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["UTF-8 �"]

‎data/fail/fail75.json‎

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[" �"]

‎data/fail/fail76.json‎

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["�"]

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