Switch ci-sdxl github runner and refactor workflow. (#644)

The `mi300-sdxl-kernel` runner has been offline for a few weeks, so runs
of this workflow have been queued:
https://github.com/nod-ai/shark-ai/actions/workflows/ci-sdxl.yaml. This
`mi300x-4` runner is probably fit to run this workflow.

Also refactored the workflow to not use explicit build steps, which
loosens the requirements on installed software and helps make progress
on #584.

.github/workflows/ci-sdxl.yaml

@@ -35,9 +35,9 @@ env:
   LIBSHORTFIN_DIR: ${{ github.workspace }}/shortfin/
 
 jobs:
-  build-and-test:
-    name: Build and test
-    runs-on: mi300-sdxl-kernel
+  install-and-test:
+    name: Install and test
+    runs-on: mi300x-4
 
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
@@ -55,53 +55,27 @@ jobs:
           sudo apt install ninja -y
         fi
 
-    - name: Checkout IREE repo
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      with:
-        repository: iree-org/iree
-        path: ${{ env.IREE_REPO_DIR }}
-        submodules: false
-        ref: iree-3.1.0rc20241204
-
-    - name: Initalize IREE submodules
-      working-directory: ${{ env.IREE_REPO_DIR }}
-      run : |
-        git submodule update --init --depth 1 -- third_party/benchmark
-        git submodule update --init --depth 1 -- third_party/cpuinfo/
-        git submodule update --init --depth 1 -- third_party/flatcc
-        git submodule update --init --depth 1 -- third_party/googletest
-        git submodule update --init --depth 1 -- third_party/hip-build-deps/
-
     - name: Setup Python
       uses: actions/setup-python@0b93645e9fea7318ecaed2b359559ac225c90a2b # v5.3.0
       with:
         python-version: "3.12"
         cache: "pip"
-    - name: Install Python packages
-      # TODO: Switch to `pip install -r requirements.txt -e shortfin/`.
+
+    - name: Install requirements
       working-directory: ${{ env.LIBSHORTFIN_DIR }}
       run: |
         pip install -r requirements-tests.txt
         pip install -r requirements-iree-compiler.txt
         pip freeze
 
-    - name: Build shortfin (full)
+    - name: Install shortfin
       working-directory: ${{ env.LIBSHORTFIN_DIR }}
       run: |
-        mkdir build
-        cmake -GNinja \
-          -S. \
-          -Bbuild \
-          -DCMAKE_C_COMPILER=clang-18 \
-          -DCMAKE_CXX_COMPILER=clang++-18 \
-          -DSHORTFIN_BUNDLE_DEPS=ON \
-          -DSHORTFIN_IREE_SOURCE_DIR="${{ env.IREE_REPO_DIR }}" \
-          -DSHORTFIN_BUILD_PYTHON_BINDINGS=ON
-        cmake --build build --target all
-        pip install -v -e build/
+        pip install --no-compile -e .
 
-    - name: Test shortfin (full)
+    - name: Test apps/sd/e2e_test
       working-directory: ${{ env.LIBSHORTFIN_DIR }}
+      env:
+        HIP_VISIBLE_DEVICES: 0
       run: |
-        ctest --timeout 30 --output-on-failure --test-dir build
-        HIP_VISIBLE_DEVICES=0 pytest tests/apps/sd/e2e_test.py -v -s --system=amdgpu
+        pytest tests/apps/sd/e2e_test.py -v -s --system=amdgpu