[SYCL] Test for device/platform interop constructor

SYCL/Basic/device_platform_interop.cpp

@@ -0,0 +1,46 @@
+// REQUIRES: opencl
+
+// RUN: %clangxx -fsycl %s -o %t.run
+// RUN: %GPU_RUN_PLACEHOLDER %t.run
+// RUN: %CPU_RUN_PLACEHOLDER %t.run
+// RUN: %ACC_RUN_PLACEHOLDER %t.run
+
+//==------------------- device_platform_interop.cpp ------------------------==//
+// The test for SYCL device and platform interop constructors
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <CL/sycl.hpp>
+#include <CL/sycl/backend/opencl.hpp>
+#include <iostream>
+#include <memory>
+#include <unordered_map>
+using namespace cl::sycl;
+
+int main() {
+  default_selector device_selector;
+
+  device D1(device_selector);
+  cl_device_id cl_device;
+  {
+    device D2(device_selector);
+    cl_device = D2.get_native<backend::opencl>();
+  }
+  device D3(cl_device);
+  assert(D1 == D3 && "Device impls are different");
+
+  platform P1(device_selector);
+  cl_platform_id cl_platform;
+  {
+    platform P2(device_selector);
+    cl_platform = P2.get_native<backend::opencl>();
+  }
+  platform P3(cl_platform);
+  assert(P1 == P3 && "Platform impls are different");
+
+  return 0;
+}