Install and use clang in GPU test jobs. (#18076)

Missed this when setting up these AMD jobs / migrating the NVIDIA job
away from Docker. The jobs had been using gcc :P

ci-exactly: build_packages, test_amd_mi250, test_amd_mi300,
test_amd_w7900, test_nvidia_t4

.github/workflows/pkgci_test_amd_mi250.yml

@@ -30,11 +30,11 @@ jobs:
       IREE_HIP_DISABLE: 0
       IREE_HIP_TEST_TARGET_CHIP: "gfx90a"
     steps:
-      - name: Checking out repository
+      - name: Check out repository
         uses: actions/[email protected]
         with:
           submodules: false
-      - name: "Checking out runtime submodules"
+      - name: Check out runtime submodules
         run: ./build_tools/scripts/git/update_runtime_submodules.sh
       - uses: actions/[email protected]
         with:
@@ -49,9 +49,16 @@ jobs:
           ./build_tools/pkgci/setup_venv.py ${VENV_DIR} \
             --artifact-path=${PACKAGE_DOWNLOAD_DIR} \
             --fetch-gh-workflow=${{ inputs.artifact_run_id }}
-      - name: "Building tests"
+      - name: Install build dependencies
+        run: |
+          sudo apt update
+          sudo apt install -y cmake clang ninja-build libstdc++-12-dev
+          echo "CC=clang" >> $GITHUB_ENV
+          echo "CXX=clang++" >> $GITHUB_ENV
+
+      - name: Build tests
         run: ./build_tools/pkgci/build_tests_using_package.sh ${VENV_DIR}/bin
-      - name: "Running GPU tests"
+      - name: Run GPU tests
         env:
           CTEST_PARALLEL_LEVEL: 2
           IREE_CTEST_LABEL_REGEX: ^requires-gpu|^driver=hip$

.github/workflows/pkgci_test_amd_mi300.yml

@@ -35,11 +35,11 @@ jobs:
         if: contains(matrix.name, 'gfx942')
         run: |
           sudo chmod -R 777 ~/actions-runner/_work
-      - name: Checking out repository
+      - name: Check out repository
         uses: actions/[email protected]
         with:
           submodules: false
-      - name: "Checking out runtime submodules"
+      - name: Check out runtime submodules
         run: ./build_tools/scripts/git/update_runtime_submodules.sh
       - uses: actions/[email protected]
         with:
@@ -54,9 +54,16 @@ jobs:
           ./build_tools/pkgci/setup_venv.py ${VENV_DIR} \
             --artifact-path=${PACKAGE_DOWNLOAD_DIR} \
             --fetch-gh-workflow=${{ inputs.artifact_run_id }}
-      - name: "Building tests"
+      - name: Install build dependencies
+        run: |
+          sudo apt update
+          sudo apt install -y cmake clang ninja-build libstdc++-12-dev
+          echo "CC=clang" >> $GITHUB_ENV
+          echo "CXX=clang++" >> $GITHUB_ENV
+
+      - name: Build tests
         run: ./build_tools/pkgci/build_tests_using_package.sh ${VENV_DIR}/bin
-      - name: "Running GPU tests"
+      - name: Run GPU tests
         env:
           CTEST_PARALLEL_LEVEL: 2
           IREE_CTEST_LABEL_REGEX: ^requires-gpu|^driver=hip$

.github/workflows/pkgci_test_amd_w7900.yml

@@ -30,11 +30,11 @@ jobs:
       IREE_HIP_DISABLE: 0
       IREE_HIP_TEST_TARGET_CHIP: "gfx1100"
     steps:
-      - name: Checking out repository
+      - name: Check out repository
         uses: actions/[email protected]
         with:
           submodules: false
-      - name: "Checking out runtime submodules"
+      - name: Check out runtime submodules
         run: ./build_tools/scripts/git/update_runtime_submodules.sh
       - uses: actions/[email protected]
         with:
@@ -49,9 +49,10 @@ jobs:
           ./build_tools/pkgci/setup_venv.py ${VENV_DIR} \
             --artifact-path=${PACKAGE_DOWNLOAD_DIR} \
             --fetch-gh-workflow=${{ inputs.artifact_run_id }}
-      - name: "Building tests"
+
+      - name: Build tests
         run: ./build_tools/pkgci/build_tests_using_package.sh ${VENV_DIR}/bin
-      - name: "Running GPU tests"
+      - name: Run GPU tests
         env:
           CTEST_PARALLEL_LEVEL: 1
           IREE_CTEST_LABEL_REGEX: ^requires-gpu|^driver=vulkan$|^driver=hip$

.github/workflows/pkgci_test_nvidia_t4.yml

@@ -34,19 +34,13 @@ jobs:
       IREE_CUDA_DISABLE: 0
       IREE_HIP_DISABLE: 1
     steps:
-      - name: Checking out repository
+      - name: Check out repository
         uses: actions/[email protected]
         with:
           submodules: false
-      - name: "Checking out runtime submodules"
+      - name: Check out runtime submodules
         run: ./build_tools/scripts/git/update_runtime_submodules.sh
-      - name: Install dependencies
-        run: |
-          sudo apt update
-          sudo apt install -y cmake clang ninja-build
-          export CC=clang
-          export CXX=clang
-      - name: Querying GPU information
+      - name: Query GPU information
         run: |
           ./build_tools/scripts/check_cuda.sh
           ./build_tools/scripts/check_vulkan.sh
@@ -63,9 +57,16 @@ jobs:
           ./build_tools/pkgci/setup_venv.py ${VENV_DIR} \
             --artifact-path=${PACKAGE_DOWNLOAD_DIR} \
             --fetch-gh-workflow=${{ inputs.artifact_run_id }}
-      - name: "Building tests"
+      - name: Install build dependencies
+        run: |
+          sudo apt update
+          sudo apt install -y cmake clang ninja-build libstdc++-12-dev
+          echo "CC=clang" >> $GITHUB_ENV
+          echo "CXX=clang++" >> $GITHUB_ENV
+
+      - name: Build tests
         run: ./build_tools/pkgci/build_tests_using_package.sh ${VENV_DIR}/bin
-      - name: "Running GPU tests"
+      - name: Run GPU tests
         env:
           CTEST_PARALLEL_LEVEL: 2
           IREE_CTEST_LABEL_REGEX: ^requires-gpu|^driver=vulkan$|^driver=cuda$

.github/workflows/samples.yml

@@ -49,9 +49,9 @@ jobs:
       - name: "Installing build dependencies"
         run: |
           sudo apt update
-          sudo apt install cmake clang ninja-build
-          export CC=clang
-          export CXX=clang++
+          sudo apt install -y cmake clang ninja-build libstdc++-12-dev
+          echo "CC=clang" >> $GITHUB_ENV
+          echo "CXX=clang++" >> $GITHUB_ENV
       - name: "Setting up Python"
         uses: actions/[email protected]
         with: