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Build and package compiler runtime resources #1046

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260f48a
Do not use install-distribution-stripped as target
mhegazy Oct 17, 2025
b44fbb2
Add new job to build compiler-rt
mhegazy Oct 17, 2025
fc9b02d
Get llvm version through lit
mhegazy Oct 18, 2025
cad07c4
Download the binaries
mhegazy Oct 18, 2025
e2e5331
Do not use install-distribution-stripped as target
mhegazy Oct 17, 2025
33d3228
Remove irrelivant section
mhegazy Oct 21, 2025
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244 changes: 243 additions & 1 deletion .github/workflows/swift-toolchain.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -1260,6 +1260,208 @@ jobs:
symbolsFolder: ${{ github.workspace }}/BinaryCache/1
searchPattern: '**/*.exe'

compiler-rt:
needs: [compilers]
runs-on: ${{ inputs.default_build_runner }}

strategy:
fail-fast: false
matrix: ${{ fromJSON(inputs.target_matrix) }}

name: ${{ matrix.os }} ${{ matrix.arch }} Compiler Runtime

steps:
- uses: actions/checkout@v4.2.2
with:
path: ${{ github.workspace }}/SourceCache/ci-build
show-progress: false
- uses: ./SourceCache/ci-build/.github/actions/setup-build
if: matrix.os != 'Android' || inputs.build_android
with:
setup-vs-dev-env: ${{ matrix.os == 'Windows' }}
host-arch: ${{ matrix.arch }}
swift-version: ${{ env.PINNED_BOOTSTRAP_TOOLCHAIN_VERSION }}
- uses: seanmiddleditch/gha-setup-ninja@96bed6edff20d1dd61ecff9b75cc519d516e6401 # master
if: inputs.build_os == 'Darwin'
- name: Compute workspace hash
if: matrix.os != 'Android' || inputs.build_android
id: workspace_hash
run: |
$stringAsStream = [System.IO.MemoryStream]::new()
$writer = [System.IO.StreamWriter]::new($stringAsStream)
$writer.write("${{ github.workspace }}")
$writer.Flush()
$stringAsStream.Position = 0
$hash = (Get-FileHash -Algorithm SHA256 -InputStream $stringAsStream).Hash
echo "hash=$hash" >> $env:GITHUB_OUTPUT
- name: Setup sccache
if: matrix.os != 'Android' || inputs.build_android
uses: ./SourceCache/ci-build/.github/actions/setup-sccache
with:
s3-bucket: ${{ vars.SCCACHE_S3_BUCKET }}
aws-region: ${{ vars.SCCACHE_AWS_REGION }}
aws-arn: ${{ vars.SCCACHE_AWS_ARN }}
disk-max-size: 500M
disk-cache-key: ${{ steps.workspace_hash.outputs.hash }}-${{ matrix.os }}-${{ matrix.arch }}-compiler-rt

- name: Download Compilers
if: matrix.os != 'Android' || inputs.build_android
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: ${{ inputs.build_os }}-${{ inputs.build_arch }}-Asserts-compilers
path: ${{ github.workspace }}/BinaryCache/Library
- uses: actions/checkout@v4.2.2
if: matrix.os != 'Android' || inputs.build_android
with:
repository: swiftlang/llvm-project
ref: ${{ inputs.llvm_project_revision }}
path: ${{ github.workspace }}/SourceCache/llvm-project
show-progress: false

- uses: nttld/setup-ndk@v1
if: matrix.os == 'Android' && inputs.build_android
id: setup-ndk
with:
ndk-version: ${{ inputs.ANDROID_NDK_VERSION }}
local-cache: true

- uses: actions/setup-python@v5
if: matrix.os != 'Android' || inputs.build_android
with:
python-version: ${{ inputs.python_version }}
architecture: x64 # FIXME(#1004): Remove workaround installing x64 Python on ARM64 CI hosts

- name: Get LLVM version
if: matrix.os != 'Android' || inputs.build_android
id: get-llvm-version
run: |
$litOutput = python ${{ github.workspace }}/SourceCache/llvm-project/llvm/utils/lit/lit.py --version
$litVersion = ($litOutput | Select-String -Pattern 'lit (\d+)' | ForEach-Object { $_.Matches[0].Groups[1].Value })
echo "llvm-version=$litVersion" >> $env:GITHUB_OUTPUT
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This isn't entirely guaranteed to be correct. lit is available as a separate pip project as well.

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not sure i understand what you mean?

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Mostly that I'm not sure if we should be using lit as the source of the version information.

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@compnerd should we have this as an input to the build? or is there a better way to get the version?


- name: Configure LLVM
if: matrix.os != 'Android' || inputs.build_android
uses: ./SourceCache/ci-build/.github/actions/configure-cmake-project
with:
project-name: llvm
swift-version: ${{ inputs.swift_version }}
enable-caching: true
debug-info: ${{ inputs.debug_info }}
build-os: ${{ inputs.build_os }}
build-arch: ${{ inputs.build_arch }}
os: ${{ matrix.os }}
arch: ${{ matrix.arch }}
src-dir: ${{ github.workspace }}/SourceCache/llvm-project/llvm
bin-dir: ${{ github.workspace }}/BinaryCache/llvm
android-api-level: ${{ inputs.ANDROID_API_LEVEL }}
android-clang-version: ${{ inputs.ANDROID_CLANG_VERSION }}
ndk-path: ${{ steps.setup-ndk.outputs.ndk-path }}
msvc-compilers: ${{ inputs.use_host_toolchain && '@("ASM_MASM", "C", "CXX")' || '@()' }}
pinned-compilers: ${{ inputs.use_host_toolchain && '@()' || '@("ASM_MASM", "C", "CXX")' }}
cmake-defines: |
@{
'LLVM_ENABLE_ASSERTIONS' = "YES";
'LLVM_HOST_TRIPLE' = "${{ matrix.triple }}";
'CMAKE_C_FLAGS' = "${{ inputs.use_host_toolchain && '' || '-fuse-ld=lld' }}";
'CMAKE_CXX_FLAGS' = "${{ inputs.use_host_toolchain && '' || '-fuse-ld=lld' }}";
}

- name: Configure ClangBuiltins
if: matrix.os != 'Android' || inputs.build_android
uses: ./SourceCache/ci-build/.github/actions/configure-cmake-project
with:
project-name: ClangBuiltins
swift-version: ${{ inputs.swift_version }}
enable-caching: true
debug-info: ${{ inputs.debug_info }}
build-os: ${{ inputs.build_os }}
build-arch: ${{ inputs.build_arch }}
os: ${{ matrix.os }}
arch: ${{ matrix.arch }}
src-dir: ${{ github.workspace }}/SourceCache/llvm-project/compiler-rt/lib/builtins
bin-dir: ${{ github.workspace }}/BinaryCache/ClangBuiltins
android-api-level: ${{ inputs.ANDROID_API_LEVEL }}
android-clang-version: ${{ inputs.ANDROID_CLANG_VERSION }}
ndk-path: ${{ steps.setup-ndk.outputs.ndk-path }}
install-dir: ${{ github.workspace }}/BuildRoot/Library/Developer/Toolchains/${{ inputs.swift_version }}+Asserts/usr/lib/clang/${{ steps.get-llvm-version.outputs.llvm-version }}
built-compilers: '@("ASM", "C", "CXX")'
cmake-defines: |
@{
'LLVM_DIR' = "${{ github.workspace }}/BinaryCache/llvm/lib/cmake/llvm";
'LLVM_ENABLE_PER_TARGET_RUNTIME_DIR' = "YES";
'COMPILER_RT_DEFAULT_TARGET_ONLY' = "YES";
}
- name: Build ClangBuiltins
if: matrix.os != 'Android' || inputs.build_android
run: cmake --build ${{ github.workspace }}/BinaryCache/ClangBuiltins
- name: Install ClangBuiltins
if: matrix.os != 'Android' || inputs.build_android
run: cmake --build ${{ github.workspace }}/BinaryCache/ClangBuiltins --target install-compiler-rt

- name: Configure ClangRuntime
if: matrix.os != 'Android' || inputs.build_android
uses: ./SourceCache/ci-build/.github/actions/configure-cmake-project
with:
project-name: ClangRuntime
swift-version: ${{ inputs.swift_version }}
enable-caching: true
debug-info: ${{ inputs.debug_info }}
build-os: ${{ inputs.build_os }}
build-arch: ${{ inputs.build_arch }}
os: ${{ matrix.os }}
arch: ${{ matrix.arch }}
src-dir: ${{ github.workspace }}/SourceCache/llvm-project/compiler-rt
bin-dir: ${{ github.workspace }}/BinaryCache/ClangRuntime
android-api-level: ${{ inputs.ANDROID_API_LEVEL }}
android-clang-version: ${{ inputs.ANDROID_CLANG_VERSION }}
ndk-path: ${{ steps.setup-ndk.outputs.ndk-path }}
install-dir: ${{ github.workspace }}/BuildRoot/Library/Developer/Toolchains/${{ inputs.swift_version }}+Asserts/usr/lib/clang/${{ steps.get-llvm-version.outputs.llvm-version }}
built-compilers: '@("ASM", "C", "CXX")'
cmake-defines: |
@{
'LLVM_DIR' = "${{ github.workspace }}/BinaryCache/llvm/lib/cmake/llvm";
'LLVM_ENABLE_PER_TARGET_RUNTIME_DIR' = "YES";
'COMPILER_RT_DEFAULT_TARGET_ONLY' = "YES";
'COMPILER_RT_BUILD_BUILTINS' = "NO";
'COMPILER_RT_BUILD_CRT' = "NO";
'COMPILER_RT_BUILD_LIBFUZZER' = "NO";
'COMPILER_RT_BUILD_ORC' = "NO";
'COMPILER_RT_BUILD_XRAY' = "NO";
'COMPILER_RT_BUILD_PROFILE' = "YES";
'COMPILER_RT_BUILD_SANITIZERS' = "YES";
}
- name: Build ClangRuntime
if: matrix.os != 'Android' || inputs.build_android
run: cmake --build ${{ github.workspace }}/BinaryCache/ClangRuntime
- name: Install ClangRuntime
if: matrix.os != 'Android' || inputs.build_android
run: cmake --build ${{ github.workspace }}/BinaryCache/ClangRuntime --target install-compiler-rt

- uses: thebrowsercompany/gha-upload-tar-artifact@e18c33b1cd416d0d96a91dc6dce06219f98e4e27 # main
if: matrix.os != 'Android' || inputs.build_android
with:
name: ${{ matrix.os }}-${{ matrix.arch }}-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library

- name: Upload PDBs to Azure
uses: microsoft/action-publish-symbols@v2.1.6
if: ${{ inputs.debug_info && matrix.os == 'Windows' }}
with:
accountName: ${{ vars.SYMBOL_SERVER_ACCOUNT }}
personalAccessToken: ${{ secrets.SYMBOL_SERVER_PAT }}
symbolsFolder: ${{ github.workspace }}/BinaryCache
searchPattern: '**/*.pdb'

- name: Upload DLLs to Azure
uses: microsoft/action-publish-symbols@v2.1.6
if: ${{ inputs.debug_info && matrix.os == 'Windows' }}
with:
accountName: ${{ vars.SYMBOL_SERVER_ACCOUNT }}
personalAccessToken: ${{ secrets.SYMBOL_SERVER_PAT }}
symbolsFolder: ${{ github.workspace }}/BinaryCache
searchPattern: '**/*.dll'


zlib:
runs-on: ${{ inputs.default_build_runner }}

Expand Down Expand Up @@ -4091,7 +4293,7 @@ jobs:
# TODO: Build this on macOS or make an equivalent Mac-only job
if: inputs.build_os == 'Windows'
name: Package Tools
needs: [compilers, macros, debugging_tools, devtools, stdlib, sdk, configure_signing]
needs: [compilers, compiler-rt, macros, debugging_tools, devtools, stdlib, sdk, configure_signing]
runs-on: ${{ inputs.default_build_runner }}

strategy:
Expand Down Expand Up @@ -4127,6 +4329,46 @@ jobs:
name: Windows-${{ matrix.arch }}-NoAsserts-compilers
path: ${{ github.workspace }}/BuildRoot/Library

- name: Download Compilers Runtime (Windows-amd64)
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Windows-amd64-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Windows-arm64)
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Windows-arm64-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Windows-x86)
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Windows-x86-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Android-arm64)
if: inputs.build_android
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Android-arm64-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Android-armv7)
if: inputs.build_android
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Android-armv7-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Android-x86_64)
if: inputs.build_android
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Android-x86_64-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library
- name: Download Compilers Runtime (Android-i686)
if: inputs.build_android
uses: thebrowsercompany/gha-download-tar-artifact@59992d91335d4ecba543c8535f7d07238e42125d # main
with:
name: Android-i686-compiler-rt
path: ${{ github.workspace }}/BuildRoot/Library

- name: Download Developer Tools
uses: actions/download-artifact@v4
with:
Expand Down