[CI] Add "loader" support to conformance testing

This expands our CI to test the loader; the dispatcher that is
used when multiple adapters are availabe.

The old "run on hardware" jobs should behave the same (they have
the loader tests disabled), but there is a new
`combined-opencl-level-zero` job that tests a build with both
OpenCL and Level Zero available.

Author: RossBrunton

.github/workflows/build-hw-reusable.yml

@@ -7,13 +7,21 @@ on:
       adapter_name:
         required: true
         type: string
+      other_adapter_name:
+        required: false
+        type: string
+        default: ""
       runner_name:
         required: true
         type: string
       platform:
         required: false
         type: string
         default: ""
+      other_platform:
+        required: false
+        type: string
+        default: ""
       static_loader:
         required: false
         type: string
@@ -39,9 +47,14 @@ jobs:
     if: github.repository == 'oneapi-src/unified-runtime'  # run only on upstream; forks won't have the HW
     strategy:
       matrix:
-        adapter: [
-          {name: "${{inputs.adapter_name}}", platform: "${{inputs.platform}}", static_Loader: "${{inputs.static_loader}}", static_adapter: "${{inputs.static_loader}}"},
-        ]
+        adapter: [{
+          name: "${{inputs.adapter_name}}",
+          other_name: "${{inputs.other_adapter_name}}",
+          platform: "${{inputs.platform}}",
+          other_platform: "${{inputs.other_platform}}",
+          static_Loader: "${{inputs.static_loader}}",
+          static_adapter: "${{inputs.static_loader}}"
+        }]
         build_type: [Debug, Release]
         compiler: [{c: gcc, cxx: g++}, {c: clang, cxx: clang++}]
         # TODO: The latest L0 loader segfaults when built with clang.
@@ -82,13 +95,14 @@ jobs:
         -DUR_ENABLE_TRACING=ON
         -DUR_DEVELOPER_MODE=ON
         -DUR_BUILD_TESTS=ON
-        -DUR_CONFORMANCE_TEST_LOADER=OFF
         -DUR_BUILD_ADAPTER_${{matrix.adapter.name}}=ON
+        ${{ matrix.adapter.other_name != '' && format('-DUR_BUILD_ADAPTER_{0}=ON', matrix.adapter.other_name) || '' }}
         -DUR_STATIC_LOADER=${{matrix.adapter.static_Loader}}
         -DUR_STATIC_ADAPTER_${{matrix.adapter.name}}=${{matrix.adapter.static_adapter}}
         -DUR_DPCXX=${{github.workspace}}/dpcpp_compiler/bin/clang++
         -DUR_SYCL_LIBRARY_DIR=${{github.workspace}}/dpcpp_compiler/lib
         -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install
+        -DUR_CONFORMANCE_TEST_LOADER=${{ matrix.adapter.other_name != '' && 'ON' || 'OFF' }}
         ${{ matrix.adapter.name == 'HIP' && '-DUR_CONFORMANCE_AMD_ARCH=gfx1030' || '' }}
         ${{ matrix.adapter.name == 'HIP' && '-DUR_HIP_PLATFORM=AMD' || '' }}
 
@@ -103,10 +117,12 @@ jobs:
     - name: Test adapter specific
       working-directory: ${{github.workspace}}/build
       run: ctest -C ${{matrix.build_type}} --output-on-failure -L "adapter-specific" --timeout 180
+      # Don't run adapter specific tests when building multiple adapters
+      if: ${{ matrix.adapter.other_name == '' }}
 
     - name: Test adapters
       working-directory: ${{github.workspace}}/build
-      run: env UR_CTS_ADAPTER_PLATFORM="${{matrix.adapter.platform}}" ctest -C ${{matrix.build_type}} --output-on-failure -L "conformance" --timeout 180
+      run: env UR_CTS_ADAPTER_PLATFORM="${{matrix.adapter.name}}:${{matrix.adapter.platform}};${{matrix.adapter.other_name}}:${{matrix.adapter.other_platform}}" ctest -C ${{matrix.build_type}} --output-on-failure -L "conformance" --timeout 180
 
     - name: Get information about platform
       if: ${{ always() }}

.github/workflows/cmake.yml

@@ -177,6 +177,15 @@ jobs:
       adapter_name: NATIVE_CPU
       runner_name: NATIVE_CPU
 
+  combined-opencl-level-zero:
+    name: OpenCL + Level Zero
+    uses: ./.github/workflows/build-hw-reusable.yml
+    with:
+      adapter_name: OPENCL
+      other_adapter_name: L0
+      runner_name: L0
+      platform: "Intel(R) OpenCL"
+
   e2e-level-zero:
     name: E2E L0
     permissions:

scripts/templates/ldrddi.cpp.mako

@@ -40,6 +40,9 @@ namespace ur_loader
         add_local = False
     %>${th.get_initial_null_set(obj)}
 
+        // For testing
+        abort();
+
         [[maybe_unused]] auto context = getContext();
         %if re.match(r"\w+AdapterGet$", th.make_func_name(n, tags, obj)):