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Rewrite (and improve) CI.
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‎.github/workflows/ci.yml

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name: CI
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on:
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pull_request:
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push:
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branches:
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- master
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env:
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CARGO_NET_RETRY: 10
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RUSTUP_MAX_RETRIES: 10
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jobs:
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x86-tests:
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name: "${{ matrix.target_feature }} on ${{ matrix.target }}"
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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target: [x86_64-pc-windows-msvc, i686-pc-windows-msvc, i586-pc-windows-msvc, x86_64-unknown-linux-gnu, x86_64-apple-darwin]
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# `default` means we use the default target config for the target,
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# `native` means we run with `-Ctarget-cpu=native`, and anything else is
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# an arg to `-Ctarget-feature`
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target_feature: [default, native, +sse3, +ssse3, +sse4.1, +sse4.2, +avx, +avx2]
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exclude:
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# The macos runners seem to only reliably support up to `avx`.
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- { target: x86_64-apple-darwin, target_feature: +avx2 }
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# These features are statically known to be present for all 64 bit
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# macs, and thus are covered by the `default` test
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- { target: x86_64-apple-darwin, target_feature: +sse3 }
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- { target: x86_64-apple-darwin, target_feature: +ssse3 }
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# -Ctarget-cpu=native sounds like bad-news if target != host
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- { target: i686-pc-windows-msvc, target_feature: native }
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- { target: i586-pc-windows-msvc, target_feature: native }
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include:
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# Populate the `matrix.os` field
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- { target: x86_64-apple-darwin, os: macos-latest }
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- { target: x86_64-unknown-linux-gnu, os: ubuntu-latest }
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- { target: x86_64-pc-windows-msvc, os: windows-latest }
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- { target: i686-pc-windows-msvc, os: windows-latest }
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- { target: i586-pc-windows-msvc, os: windows-latest }
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# These are globally available on all the other targets.
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- { target: i586-pc-windows-msvc, target_feature: +sse, os: windows-latest }
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- { target: i586-pc-windows-msvc, target_feature: +sse2, os: windows-latest }
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# Annoyingly, the x86_64-unknown-linux-gnu runner *almost* always has
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# avx512vl, but occasionally doesn't. As a result, we still run that
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# one under travis.
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup target add ${{ matrix.target }}
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- name: Configure RUSTFLAGS
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shell: bash
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run: |
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case "${{ matrix.target_feature }}" in
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default)
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;;
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native)
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echo "RUSTFLAGS=-Ctarget-cpu=native" >> $GITHUB_ENV
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;;
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*)
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echo "RUSTFLAGS=-Ctarget-feature=${{ matrix.target_feature }}" >> $GITHUB_ENV
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;;
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esac
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# Super useful for debugging why a SIGILL occurred.
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- name: Dump target configuration and support
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run: |
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rustc -Vv
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echo "Caveat: not all target features are expected to be logged"
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echo "## Requested target configuration (RUSTFLAGS=$RUSTFLAGS)"
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rustc --print=cfg --target=${{ matrix.target }} $RUSTFLAGS
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echo "## Supported target configuration for --target=${{ matrix.target }}"
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rustc --print=cfg --target=${{ matrix.target }} -Ctarget-cpu=native
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echo "## Natively supported target configuration"
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rustc --print=cfg -Ctarget-cpu=native
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- name: Test (debug)
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run: cargo test --verbose --target=${{ matrix.target }}
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- name: Test (release)
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run: cargo test --verbose --target=${{ matrix.target }} --release
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cross-tests:
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name: "${{ matrix.target }} (via cross)"
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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# TODO: Sadly, we cant configure target-feature in a meaningful way
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# because `cross` doesn't tell qemu to enable any non-default cpu
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# features, nor does it give us a way to do so.
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#
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# Ultimately, we'd like to do something like [rust-lang/stdarch][stdarch].
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# This is a lot more complex... but in practice it's likely that we can just
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# snarf the docker config from around [here][1000-dockerfiles].
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#
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# [stdarch]: https://github.com/rust-lang/stdarch/blob/a5db4eaf/.github/workflows/main.yml#L67
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# [1000-dockerfiles]: https://github.com/rust-lang/stdarch/tree/a5db4eaf/ci/docker
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matrix:
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target:
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- i586-unknown-linux-gnu
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# 32-bit arm has a few idiosyncracies like having subnormal flushing
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# to zero on by default. Ideally we'd set
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- armv7-unknown-linux-gnueabihf
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# Note: The issue above means neither of these mips targets will use
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# MSA (mips simd) but MIPS uses a nonstandard binary representation
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# for NaNs which makes it worth testing on despite that.
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- mips-unknown-linux-gnu
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- mips64-unknown-linux-gnuabi64
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- riscv64gc-unknown-linux-gnu
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steps:
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- uses: actions/checkout@v2
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- name: Setup Rust
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run: |
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rustup update nightly --no-self-update
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rustup default nightly
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rustup target add ${{ matrix.target }}
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rustup component add rust-src
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- name: Install Cross
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# Equivalent to `cargo install cross`, but downloading a prebuilt
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# binary. Ideally we wouldn't hardcode a version, but the version number
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# being part of the tarball means we can't just use the download/latest
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# URL :(
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run: |
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CROSS_URL=https://github.com/rust-embedded/cross/releases/download/v0.2.1/cross-v0.2.1-x86_64-unknown-linux-gnu.tar.gz
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mkdir -p "$HOME/.bin"
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curl -sfSL --retry-delay 10 --retry 5 "${CROSS_URL}" | tar zxf - -C "$HOME/.bin"
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echo "$HOME/.bin" >> $GITHUB_PATH
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- name: Test (debug)
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run: cross test --verbose --target=${{ matrix.target }}
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- name: Test (release)
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run: cross test --verbose --target=${{ matrix.target }} --release
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