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Import stdarch 1.49.0
This commit imports stdarch 1.49.0 into libgrust/rustc-lib/stdarch. This is necessary for compiling libcore, as libcore attempts to reuse some files from stdarch. Signed-off-by: Owen Avery <[email protected]>
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‎libgrust/rustc-lib/stdarch/.cirrus.yml‎

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task:
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name: x86_64-unknown-freebsd
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freebsd_instance:
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image: freebsd-12-1-release-amd64
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setup_script:
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- pkg install -y curl
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- curl https://sh.rustup.rs -sSf --output rustup.sh
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- sh rustup.sh --default-toolchain nightly -y
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- . $HOME/.cargo/env
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- rustup default nightly
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test_script:
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- . $HOME/.cargo/env
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- cargo build --all

‎libgrust/rustc-lib/stdarch/.github/workflows/main.yml‎

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name: CI
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on:
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push:
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branches:
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- auto
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- try
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pull_request:
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branches:
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- master
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jobs:
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style:
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name: Check Style
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install Rust
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run: rustup update nightly && rustup default nightly
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- run: ci/style.sh
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docs:
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name: Build Documentation
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needs: [style]
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install Rust
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run: rustup update nightly && rustup default nightly
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- run: ci/dox.sh
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env:
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CI: 1
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- name: Publish documentation
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run: |
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cd target/doc
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git init
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git add .
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git -c user.name='ci' -c user.email='ci' commit -m init
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git push -f -q https://git:${{ secrets.github_token }}@github.com/${{ github.repository }} HEAD:gh-pages
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if: github.event_name == 'push' && github.event.ref == 'refs/heads/master'
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verify:
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name: Automatic intrinsic verification
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needs: [style]
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install Rust
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run: rustup update nightly && rustup default nightly
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- run: cargo test --manifest-path crates/stdarch-verify/Cargo.toml
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env_override:
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name: Env Override
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needs: [style]
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install Rust
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run: rustup update nightly && rustup default nightly
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- run: RUST_STD_DETECT_UNSTABLE=avx cargo test --features=std_detect_env_override --manifest-path crates/std_detect/Cargo.toml env_override_no_avx
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test:
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needs: [style]
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name: Test
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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target:
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# Dockers that are run through docker on linux
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- i686-unknown-linux-gnu
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- x86_64-unknown-linux-gnu
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- x86_64-unknown-linux-gnu-emulated
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- arm-unknown-linux-gnueabihf
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- armv7-unknown-linux-gnueabihf
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- aarch64-unknown-linux-gnu
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- powerpc64le-unknown-linux-gnu
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- mips-unknown-linux-gnu
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- mips64-unknown-linux-gnuabi64
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- mips64el-unknown-linux-gnuabi64
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- s390x-unknown-linux-gnu
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- wasm32-wasi
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- i586-unknown-linux-gnu
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- x86_64-linux-android
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- arm-linux-androideabi
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- mipsel-unknown-linux-musl
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- aarch64-linux-android
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- nvptx64-nvidia-cuda
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- thumbv6m-none-eabi
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- thumbv7m-none-eabi
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- thumbv7em-none-eabi
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- thumbv7em-none-eabihf
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# macOS targets
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- x86_64-apple-darwin
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# FIXME: gh-actions build environment doesn't have linker support
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# - i686-apple-darwin
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# Windows targets
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- x86_64-pc-windows-msvc
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# FIXME: Disassembly not implemented for the # following targets:
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# - x86_64-pc-windows-gnu:
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# - i686-pc-windows-gnu:
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# - i686-pc-windows-msvc:
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include:
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- target: i686-unknown-linux-gnu
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os: ubuntu-latest
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- target: x86_64-unknown-linux-gnu
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os: ubuntu-latest
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- target: x86_64-unknown-linux-gnu-emulated
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os: ubuntu-latest
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test_everything: true
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rustflags: --cfg stdarch_intel_sde
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- target: arm-unknown-linux-gnueabihf
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os: ubuntu-latest
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- target: armv7-unknown-linux-gnueabihf
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os: ubuntu-latest
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rustflags: -C target-feature=+neon
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- target: mips-unknown-linux-gnu
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os: ubuntu-latest
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norun: true
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- target: mips64-unknown-linux-gnuabi64
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os: ubuntu-latest
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norun: true
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- target: mips64el-unknown-linux-gnuabi64
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os: ubuntu-latest
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norun: true
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- target: powerpc64le-unknown-linux-gnu
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os: ubuntu-latest
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disable_assert_instr: true
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- target: s390x-unknown-linux-gnu
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os: ubuntu-latest
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- target: wasm32-wasi
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os: ubuntu-latest
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- target: aarch64-unknown-linux-gnu
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os: ubuntu-latest
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- target: x86_64-apple-darwin
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os: macos-latest
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- target: x86_64-pc-windows-msvc
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os: windows-latest
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- target: i586-unknown-linux-gnu
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os: ubuntu-latest
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- target: x86_64-linux-android
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os: ubuntu-latest
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disable_assert_instr: 1
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- target: arm-linux-androideabi
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os: ubuntu-latest
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disable_assert_instr: 1
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- target: mipsel-unknown-linux-musl
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os: ubuntu-latest
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norun: 1
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- target: aarch64-linux-android
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os: ubuntu-latest
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disable_assert_instr: 1
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- target: nvptx64-nvidia-cuda
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os: ubuntu-latest
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- target: thumbv6m-none-eabi
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os: ubuntu-latest
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- target: thumbv7m-none-eabi
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os: ubuntu-latest
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- target: thumbv7em-none-eabi
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os: ubuntu-latest
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- target: thumbv7em-none-eabihf
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os: ubuntu-latest
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steps:
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- uses: actions/checkout@master
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- name: Install Rust (rustup)
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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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if: matrix.os != 'macos-latest'
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- name: Install Rust (macos)
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run: |
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curl https://sh.rustup.rs | sh -s -- -y --default-toolchain nightly
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echo "##[add-path]$HOME/.cargo/bin"
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rustup update nightly --no-self-update
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rustup default nightly
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if: matrix.os == 'macos-latest'
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- run: |
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rustup default nightly
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rustup target add ${{ matrix.target }}
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if: "!endsWith(matrix.target, 'emulated')"
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- run: cargo generate-lockfile
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# Configure some env vars based on matrix configuration
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- run: echo "##[set-env name=NORUN]1"
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if: matrix.norun != '' || startsWith(matrix.target, 'thumb') || matrix.target == 'nvptx64-nvidia-cuda'
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- run: echo "##[set-env name=STDARCH_TEST_EVERYTHING]1"
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if: matrix.test_everything != ''
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- run: echo "##[set-env name=RUSTFLAGS]${{ matrix.rustflags }}"
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if: matrix.rustflags != ''
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- run: echo "##[set-env name=STDARCH_DISABLE_ASSERT_INSTR]1"
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if: matrix.disable_assert_instr != ''
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- run: echo "##[set-env name=NOSTD]1"
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if: startsWith(matrix.target, 'thumb') || matrix.target == 'nvptx64-nvidia-cuda'
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# Windows & OSX go straight to `run.sh` ...
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- run: ./ci/run.sh
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shell: bash
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if: matrix.os != 'ubuntu-latest' || startsWith(matrix.target, 'thumb')
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env:
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TARGET: ${{ matrix.target }}
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# ... while Linux goes to `run-docker.sh`
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- run: ./ci/run-docker.sh ${{ matrix.target }}
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shell: bash
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if: "matrix.os == 'ubuntu-latest' && !startsWith(matrix.target, 'thumb')"
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env:
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TARGET: ${{ matrix.target }}

‎libgrust/rustc-lib/stdarch/.gitignore‎

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Cargo.lock
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.*.swp
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target
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tags
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crates/stdarch-gen/aarch64.rs
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crates/stdarch-gen/arm.rs

‎libgrust/rustc-lib/stdarch/CONTRIBUTING.md‎

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# Contributing to stdarch
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The `stdarch` crate is more than willing to accept contributions! First you'll
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probably want to check out the repository and make sure that tests pass for you:
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```
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$ git clone https://github.com/rust-lang/stdarch
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$ cd stdarch
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$ cargo +nightly test
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```
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To run codegen tests, run in release mode:
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```
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$ cargo +nightly test --release -p coresimd
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```
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Remember that this repository requires the nightly channel of Rust! If any of
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the above steps don't work, [please let us know][new]!
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Next up you can [find an issue][issues] to help out on, we've selected a few
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with the [`help wanted`][help] and [`impl-period`][impl] tags which could
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particularly use some help. You may be most interested in [#40][vendor],
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implementing all vendor intrinsics on x86. That issue's got some good pointers
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about where to get started!
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If you've got general questions feel free to [join us on gitter][gitter] and ask
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around! Feel free to ping either @BurntSushi or @alexcrichton with questions.
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[gitter]: https://gitter.im/rust-impl-period/WG-libs-simd
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# How to write examples for stdarch intrinsics
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There are a few features that must be enabled for the given intrinsic to work
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properly and the example must only be run by `cargo test --doc` when the feature
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is supported by the CPU. As a result, the default `fn main` that is generated by
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`rustdoc` will not work (in most cases). Consider using the following as a guide
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to ensure your example works as expected.
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```rust
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/// # // We need cfg_target_feature to ensure the example is only
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/// # // run by `cargo test --doc` when the CPU supports the feature
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/// # #![feature(cfg_target_feature)]
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/// # // We need target_feature for the intrinsic to work
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/// # #![feature(target_feature)]
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/// #
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/// # // rustdoc by default uses `extern crate stdarch`, but we need the
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/// # // `#[macro_use]`
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/// # #[macro_use] extern crate stdarch;
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/// #
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/// # // The real main function
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/// # fn main() {
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/// # // Only run this if `<target feature>` is supported
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/// # if cfg_feature_enabled!("<target feature>") {
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/// # // Create a `worker` function that will only be run if the target feature
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/// # // is supported and ensure that `target_feature` is enabled for your worker
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/// # // function
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/// # #[target_feature(enable = "<target feature>")]
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/// # unsafe fn worker() {
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///
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/// // Write your example here. Feature specific intrinsics will work here! Go wild!
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///
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/// # }
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/// # unsafe { worker(); }
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/// # }
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/// # }
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```
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If some of the above syntax does not look familiar, the [Documentation as tests] section
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of the [Rust Book] describes the `rustdoc` syntax quite well. As always, feel free
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to [join us on gitter][gitter] and ask us if you hit any snags, and thank you for helping
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to improve the documentation of `stdarch`!
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[new]: https://github.com/rust-lang/stdarch/issues/new
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[issues]: https://github.com/rust-lang/stdarch/issues
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[help]: https://github.com/rust-lang/stdarch/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22
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[impl]: https://github.com/rust-lang/stdarch/issues?q=is%3Aissue+is%3Aopen+label%3Aimpl-period
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[vendor]: https://github.com/rust-lang/stdarch/issues/40
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[Documentation as tests]: https://doc.rust-lang.org/book/first-edition/documentation.html#documentation-as-tests
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[Rust Book]: https://doc.rust-lang.org/book/first-edition

‎libgrust/rustc-lib/stdarch/Cargo.toml‎

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[workspace]
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members = [
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"crates/stdarch-verify",
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"crates/core_arch",
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"crates/std_detect",
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"crates/stdarch-gen",
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"examples/"
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]
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exclude = [
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"crates/wasm-assert-instr-tests"
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]
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[profile.release]
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debug = true
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opt-level = 3
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incremental = true
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[profile.bench]
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debug = 1
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opt-level = 3
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incremental = true

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