[SYCL][E2E] Print features detected by lit (#16866)

Author: aelovikov-intel

devops/actions/run-tests/e2e/action.yml

@@ -59,7 +59,7 @@ runs:
   - name: SYCL End-to-end tests
     shell: bash {0}
     env:
-      LIT_OPTS: -v --no-progress-bar --show-unsupported --show-pass --show-xfail --max-time 3600 --time-tests --param test-mode=${{ inputs.testing_mode }} --param sycl_devices=${{ inputs.target_devices }} ${{ inputs.extra_lit_opts }}
+      LIT_OPTS: -v --no-progress-bar --show-unsupported --show-pass --show-xfail --max-time 3600 --time-tests --param print_features=True --param test-mode=${{ inputs.testing_mode }} --param sycl_devices=${{ inputs.target_devices }} ${{ inputs.extra_lit_opts }}
     run: |
       ninja -C build-e2e check-sycl-e2e > e2e.log 2>&1
       exit_code=$?

sycl/test-e2e/lit.cfg.py

@@ -894,6 +894,14 @@ def open_check_file(file_name):
         ("%clang", " " + config.dpcpp_compiler + " " + config.c_flags)
     )
 
+if lit_config.params.get("print_features", False):
+    lit_config.note(
+        "Global features: {}".format(" ".join(sorted(config.available_features)))
+    )
+    lit_config.note("Per-device features:")
+    for dev, features in config.sycl_dev_features.items():
+        lit_config.note("\t{}: {}".format(dev, " ".join(sorted(features))))
+
 # Set timeout for a single test
 try:
     import psutil