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Point LLVM 21 prebuilt URLs at the upstream release #413

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Point LLVM 21 prebuilt URLs at the upstream release #413

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8d93983
Point LLVM 21 prebuilt URLs at the upstream release
brandonros Sep 22, 2026
44ff9e0
ci: fix digest artifact pattern matching llvm21 image digests
brandonros Sep 23, 2026
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2 changes: 1 addition & 1 deletion .github/workflows/ci_linux.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -131,7 +131,7 @@ jobs:
if: matrix.variance.llvm == 21
env:
LLVM_ARCH: ${{ matrix.variance.artifact }}
PREBUILT_LLVM_URL: ${{ vars.PREBUILT_LLVM_URL || 'https://github.com/brandonros/rustc_codegen_nvvm-llvm/releases/download/llvm-21.1.8' }}
PREBUILT_LLVM_URL: ${{ vars.PREBUILT_LLVM_URL || 'https://github.com/Rust-GPU/rustc_codegen_nvvm-llvm/releases/download/llvm-21.1.8' }}
run: |
mkdir -p llvm-prebuilt
curl --fail --location --retry 3 \
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4 changes: 2 additions & 2 deletions .github/workflows/container_images.yml
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Expand Up @@ -140,7 +140,7 @@ jobs:
if: github.event_name != 'pull_request'
uses: actions/upload-artifact@v4
with:
name: digests-${{ env.ARTIFACT_NAME }}-${{ matrix.platform.arch }}
name: digests-${{ matrix.platform.arch }}-${{ env.ARTIFACT_NAME }}
path: /tmp/digests/*
if-no-files-found: error
retention-days: 1
Expand Down Expand Up @@ -178,7 +178,7 @@ jobs:
uses: actions/download-artifact@v4
with:
path: /tmp/digests
pattern: digests-${{ env.ARTIFACT_NAME }}-*
pattern: digests-*-${{ env.ARTIFACT_NAME }}
merge-multiple: true
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
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7 changes: 3 additions & 4 deletions guide/src/guide/getting_started.md
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Expand Up @@ -33,7 +33,7 @@ appends `linux-x86_64.tar.xz`, `linux-aarch64.tar.xz`, or
`windows-x86_64.tar.xz` for the host platform.

```sh
export PREBUILT_LLVM_URL=https://github.com/brandonros/rustc_codegen_nvvm-llvm/releases/download/llvm-21.1.8
export PREBUILT_LLVM_URL=https://github.com/Rust-GPU/rustc_codegen_nvvm-llvm/releases/download/llvm-21.1.8
USE_PREBUILT_LLVM=1 cargo build -p rustc_codegen_nvvm --features llvm21
```

Expand All @@ -42,9 +42,8 @@ used only if local discovery fails. Select archives matching the backend's
LLVM version; the override also applies to LLVM 7 builds.

Linux CI accepts the same directory through the repository Actions variable
`PREBUILT_LLVM_URL`. Its LLVM 21 jobs default to the release above, whose
three archives match the artifacts from
[run 34781677658](https://github.com/brandonros/rustc_codegen_nvvm-llvm/actions/runs/34781677658).
`PREBUILT_LLVM_URL`. Its LLVM 21 jobs default to the release above, which is
also the backend's built-in default.

## CUDA basics

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