ci: TEMPORARY try clang 20 riscv job

pauldreik · pauldreik · commit 032c633d6f64 · 2026-01-06T10:10:31.000+01:00
diff --git a/.github/workflows/rvv-1024-clang-20.yml b/.github/workflows/rvv-1024-clang-20.yml
@@ -0,0 +1,34 @@
+name: Ubuntu rvv VLEN=1024 (clang 20)
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install packages
+      run: |
+        sudo apt-get update -q -y
+        sudo apt-get install -y cmake make g++-riscv64-linux-gnu qemu-user-static clang-20
+    - name: Build
+      run: |
+        CXX=clang++-20 \
+        CC=clang-20 \
+        CXXFLAGS="--target=riscv64-linux-gnu -march=rv64gcv_zvbb" \
+        cmake --toolchain=cmake/toolchains-ci/riscv64-linux-gnu.cmake \
+        -DCMAKE_BUILD_TYPE=Release \
+        -B build \
+        -DSIMDUTF_FAST_TESTS=On
+        cmake --build build/ -j$(nproc)
+    - name: Test VLEN=1024
+      run: |
+        export QEMU_LD_PREFIX="/usr/riscv64-linux-gnu"
+        export QEMU_CPU="rv64,v=on,zvbb=on,vlen=1024,rvv_ta_all_1s=on,rvv_ma_all_1s=on"
+        ctest --timeout 1800 --output-on-failure --test-dir build -j $(nproc)
