feat(container): add ubuntu24-cuda13 image with LLVM 19.1.7

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: brandonros

.github/workflows/container_images.yml

@@ -42,6 +42,9 @@ jobs:
           - name: RockyLinux-9/CUDA-13.0.2
             image: "rust-gpu/rust-cuda-rockylinux9-cuda13"
             dockerfile: ./container/rockylinux9-cuda13/Dockerfile
+          - name: Ubuntu-24.04/CUDA-13.0.2/LLVM-19.1.7
+            image: "rust-gpu/rust-cuda-ubuntu24-cuda13-llvm19"
+            dockerfile: ./container/ubuntu24-cuda13-llvm19/Dockerfile
     steps:
       - name: Free up space
         # Without this the job will likely run out of disk space.
@@ -165,6 +168,8 @@ jobs:
             image: "rust-gpu/rust-cuda-rockylinux9-cuda12"
           - name: RockyLinux-9/CUDA-13.0.2
             image: "rust-gpu/rust-cuda-rockylinux9-cuda13"
+          - name: Ubuntu-24.04/CUDA-13.0.2/LLVM-19.1.7
+            image: "rust-gpu/rust-cuda-ubuntu24-cuda13-llvm19"
     steps:
       - name: Set artifact name
         run: |

container/ubuntu24-cuda13-llvm19/Dockerfile

@@ -0,0 +1,99 @@
+FROM nvcr.io/nvidia/cuda:13.0.2-cudnn-devel-ubuntu24.04 AS llvm-builder
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -qq -y install \
+    build-essential \
+    clang \
+    curl \
+    libffi-dev \
+    libedit-dev \
+    libncurses5-dev \
+    libssl-dev \
+    libtinfo-dev \
+    libxml2-dev \
+    cmake \
+    ninja-build \
+    pkg-config \
+    python3 \
+    xz-utils \
+    zlib1g-dev && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /data/llvm19
+
+# Download and build LLVM 19.1.7 (the active LLVM 19 pin used by `rustc_codegen_nvvm`).
+# LLVM 8+ ships as a monorepo tarball; cmake source root is the `llvm/` subdir.
+RUN curl -sSf -L -O https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.7/llvm-project-19.1.7.src.tar.xz && \
+    tar -xf llvm-project-19.1.7.src.tar.xz && \
+    cd llvm-project-19.1.7.src && \
+    mkdir build && cd build && \
+    ARCH=$(dpkg --print-architecture) && \
+    if [ "$ARCH" = "amd64" ]; then \
+        TARGETS="X86;NVPTX"; \
+    else \
+        TARGETS="AArch64;NVPTX"; \
+    fi && \
+    cmake -G Ninja \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DLLVM_TARGETS_TO_BUILD="$TARGETS" \
+        -DLLVM_BUILD_LLVM_DYLIB=ON \
+        -DLLVM_LINK_LLVM_DYLIB=ON \
+        -DLLVM_ENABLE_ASSERTIONS=OFF \
+        -DLLVM_ENABLE_BINDINGS=OFF \
+        -DLLVM_INCLUDE_EXAMPLES=OFF \
+        -DLLVM_INCLUDE_TESTS=OFF \
+        -DLLVM_INCLUDE_BENCHMARKS=OFF \
+        -DLLVM_ENABLE_ZLIB=ON \
+        -DLLVM_ENABLE_TERMINFO=ON \
+        -DCMAKE_INSTALL_PREFIX=/opt/llvm-19 \
+        ../llvm && \
+    ninja -j$(nproc) && \
+    ninja install && \
+    cd ../.. && \
+    rm -rf llvm-project-19.1.7.src*
+
+FROM nvcr.io/nvidia/cuda:13.0.2-cudnn-devel-ubuntu24.04
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -qq -y install \
+    build-essential \
+    clang \
+    curl \
+    libssl-dev \
+    libtinfo-dev \
+    pkg-config \
+    xz-utils \
+    zlib1g-dev \
+    cmake \
+    libfontconfig-dev \
+    libx11-xcb-dev \
+    libxcursor-dev \
+    libxi-dev \
+    libxinerama-dev \
+    libxrandr-dev && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY --from=llvm-builder /opt/llvm-19 /opt/llvm-19
+RUN ln -s /opt/llvm-19/bin/llvm-config /usr/bin/llvm-config && \
+    ln -s /opt/llvm-19/bin/llvm-config /usr/bin/llvm-config-19 && \
+    ln -s /opt/llvm-19/bin/llvm-as /usr/bin/llvm-as-19
+
+# Get Rust (install rustup; toolchain installed from rust-toolchain.toml below)
+RUN curl -sSf -L https://sh.rustup.rs | bash -s -- -y --profile minimal --default-toolchain none
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Setup the workspace
+WORKDIR /data/rust-cuda
+RUN --mount=type=bind,source=rust-toolchain.toml,target=/data/rust-cuda/rust-toolchain.toml \
+    rustup show
+
+# Add nvvm + LLVM 19 dylib to the runtime linker path.
+ENV LD_LIBRARY_PATH="/opt/llvm-19/lib:/usr/local/cuda/nvvm/lib64:${LD_LIBRARY_PATH}"
+
+# `rustc_codegen_nvvm`'s build.rs probes `LLVM_CONFIG_19` to locate the LLVM 19
+# toolchain when the `llvm19` cargo feature is on. The feature itself is gated;
+# downstream crates that depend on `cuda_builder` must build with
+# `--features llvm19` for this to take effect — that propagates through to
+# `nvvm/llvm19` (default `NvvmArch` = Blackwell) and `rustc_codegen_nvvm/llvm19`
+# (LLVM 19 codegen path) per crates/cuda_builder/Cargo.toml.
+ENV LLVM_CONFIG_19=/opt/llvm-19/bin/llvm-config
+ENV LLVM_LINK_STATIC=1
+ENV RUST_LOG=info