[SYCL] Fix CUDA LIT tests (#3007)

 - set SYCL_PLUGIN parameter required for CUDA Unit tests;
 - add check-sycl-ptx target to check-sycl-cuda;
 - move test requiring GPU RT to on-device folder;
 - set cuda feature in LIT if PTX triple is set.

Author: vladimirlaz

sycl/test/CMakeLists.txt

@@ -113,12 +113,14 @@ if(SYCL_BUILD_PI_CUDA)
   add_lit_testsuite(check-sycl-ptx "Running device-agnostic SYCL regression tests for NVidia PTX"
     ${CMAKE_CURRENT_BINARY_DIR}
     ARGS ${RT_TEST_ARGS}
-    PARAMS "SYCL_TRIPLE=nvptx64-nvidia-cuda-sycldevice"
+    PARAMS "SYCL_TRIPLE=nvptx64-nvidia-cuda-sycldevice;SYCL_PLUGIN=cuda"
     DEPENDS ${SYCL_TEST_DEPS}
     EXCLUDE_FROM_CHECK_ALL
   )
 
-  add_dependencies(check-sycl check-sycl-cuda check-sycl-ptx)
+  add_dependencies(check-sycl-cuda check-sycl-ptx)
+
+  add_dependencies(check-sycl check-sycl-cuda)
 
   add_lit_testsuites(SYCL-CUDA ${CMAKE_CURRENT_SOURCE_DIR}/on-device
     PARAMS "SYCL_PLUGIN=cuda"

sycl/test/lit.cfg.py

@@ -83,6 +83,9 @@
 lit_config.note("Triple: {}".format(triple))
 config.substitutions.append( ('%sycl_triple',  triple ) )
 
+if triple == 'nvptx64-nvidia-cuda-sycldevice':
+    config.available_features.add('cuda')
+
 # Set timeout for test = 10 mins
 try:
     import psutil