[SYCL][CUDA] Mark LIT tests not supported by CUDA

Marks LIT tests as UNSUPPORTED that require OpenCL or behavior not
supported by PI CUDA, e.g., online compilation/linking.

Marks tests as XFAIL that could be supported by CUDA but aren't yet.

Signed-off-by: Bjoern Knafla <bjoern@codeplay.com>

Author: bjoernknafla

sycl/test/ordered_queue/prop.cpp

@@ -1,4 +1,8 @@
-// RUN: %clangxx -fsycl %s -o %t1.out -L %opencl_libs_dir -lOpenCL
+// REQUIRES: opencl
+// UNSUPPORTED: cuda
+// CUDA does not support OpenCL interop.
+//
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t1.out -L %opencl_libs_dir -lOpenCL
 // RUN: %CPU_RUN_PLACEHOLDER %t1.out
 // RUN: %GPU_RUN_PLACEHOLDER %t1.out
 

sycl/test/program_manager/env_vars.cpp

@@ -1,4 +1,9 @@
-// RUN: %clangxx -O0 -fsycl %s -o %t.out -lsycl
+// REQUIRES: opencl
+// UNSUPPORTED: cuda
+// CUDA does not support online compilation/linking.
+// CUDA does not support OpenCL linker options.
+//
+// RUN: %clangxx -O0 -fsycl -fsycl-targets=%sycl_triple %s -o %t.out -lsycl
 //
 // Deprecated SYCL_PROGRAM_BUILD_OPTIONS should work as an alias to
 // SYCL_PROGRAM_COMPILE_OPTIONS:

sycl/test/usm/mixed2template.cpp

@@ -1,4 +1,7 @@
-// RUN: %clangxx -fsycl %s -o %t1.out
+// XFAIL: cuda
+// CUDA does not support USM.
+//
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t1.out
 // RUN: env SYCL_DEVICE_TYPE=HOST %t1.out
 // RUN: %CPU_RUN_PLACEHOLDER %t1.out
 // RUN: %GPU_RUN_PLACEHOLDER %t1.out

sycl/test/usm/queue_wait.cpp

@@ -1,4 +1,7 @@
-// RUN: %clangxx -fsycl %s -o %t.out
+// XFAIL: cuda
+// CUDA does not support USM.
+//
+// RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple %s -o %t.out
 // RUN: env SYCL_DEVICE_TYPE=HOST %t.out
 // RUN: %CPU_RUN_PLACEHOLDER %t.out
 // RUN: %GPU_RUN_PLACEHOLDER %t.out