[SYCL] Add unittest for recent handler::set_arg fixes

sycl/source/detail/kernel_info.hpp

@@ -28,7 +28,7 @@ typename std::enable_if<
 get_kernel_info(RT::PiKernel Kernel, const plugin &Plugin) {
   static_assert(detail::is_kernel_info_desc<Param>::value,
                 "Invalid kernel information descriptor");
-  size_t ResultSize;
+  size_t ResultSize = 0;
 
   // TODO catch an exception and put it to list of asynchronous exceptions
   Plugin.call<PiApiKind::piKernelGetInfo>(Kernel, PiInfoCode<Param>::value, 0,

sycl/unittests/CMakeLists.txt

@@ -48,3 +48,4 @@ add_subdirectory(event)
 add_subdirectory(buffer)
 add_subdirectory(context)
 add_subdirectory(accessor)
+add_subdirectory(handler)

sycl/unittests/handler/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_sycl_unittest(HandlerTests OBJECT
+  SetArgForLocalAccessor.cpp
+)

sycl/unittests/handler/SetArgForLocalAccessor.cpp

@@ -0,0 +1,157 @@
+#include <gtest/gtest.h>
+#include <helpers/PiMock.hpp>
+
+#include <sycl/sycl.hpp>
+
+// This test checks that we pass the correct buffer size value when setting
+// local_accessor as an argument through handler::set_arg to a kernel created
+// using OpenCL interoperability methods.
+
+namespace {
+
+struct TestContext {
+  size_t localBufferArgSize = 0;
+
+  // SYCL RT has number of checks that all devices and contexts are consistent
+  // between kernel, kernel_bundle and other objects.
+  //
+  // To ensure that those checks pass, we intercept some PI calls to extract
+  // the exact PI handles of device and context used in queue creation to later
+  // return them when program/context/kernel info is requested.
+  pi_device deviceHandle;
+  pi_context contextHandle;
+
+  pi_program programHandle = createDummyHandle<pi_program>();
+
+  ~TestContext() { releaseDummyHandle<pi_program>(programHandle); }
+};
+
+TestContext GlobalContext;
+
+} // namespace
+
+pi_result redefined_piKernelSetArg(pi_kernel kernel, pi_uint32 arg_index,
+                                   size_t arg_size, const void *arg_value) {
+  GlobalContext.localBufferArgSize = arg_size;
+
+  return PI_SUCCESS;
+}
+
+pi_result after_piContextGetInfo(pi_context context, pi_context_info param_name,
+                                 size_t param_value_size, void *param_value,
+                                 size_t *param_value_size_ret) {
+  switch (param_name) {
+  case PI_CONTEXT_INFO_DEVICES:
+    if (param_value)
+      *static_cast<pi_device *>(param_value) = GlobalContext.deviceHandle;
+    if (param_value_size_ret)
+      *param_value_size_ret = sizeof(GlobalContext.deviceHandle);
+  default:;
+  }
+
+  return PI_SUCCESS;
+}
+
+pi_result after_piProgramGetInfo(pi_program program, pi_program_info param_name,
+                                 size_t param_value_size, void *param_value,
+                                 size_t *param_value_size_ret) {
+
+  switch (param_name) {
+  case PI_PROGRAM_INFO_DEVICES:
+    if (param_value_size_ret)
+      *param_value_size_ret = sizeof(GlobalContext.deviceHandle);
+    if (param_value)
+      *static_cast<pi_device *>(param_value) = GlobalContext.deviceHandle;
+    break;
+  default:;
+  }
+
+  return PI_SUCCESS;
+}
+
+pi_result redefined_piProgramGetBuildInfo(pi_program program, pi_device device,
+                                          _pi_program_build_info param_name,
+                                          size_t param_value_size,
+                                          void *param_value,
+                                          size_t *param_value_size_ret) {
+  switch (param_name) {
+  case PI_PROGRAM_BUILD_INFO_BINARY_TYPE:
+    if (param_value_size_ret)
+      *param_value_size_ret = sizeof(pi_program_binary_type);
+    if (param_value)
+      *static_cast<pi_program_binary_type *>(param_value) =
+          PI_PROGRAM_BINARY_TYPE_EXECUTABLE;
+    break;
+  default:;
+  }
+
+  return PI_SUCCESS;
+}
+
+pi_result after_piContextCreate(const pi_context_properties *properties,
+                                pi_uint32 num_devices, const pi_device *devices,
+                                void (*pfn_notify)(const char *errinfo,
+                                                   const void *private_info,
+                                                   size_t cb, void *user_data),
+                                void *user_data, pi_context *ret_context) {
+  if (ret_context)
+    GlobalContext.contextHandle = *ret_context;
+  GlobalContext.deviceHandle = *devices;
+  return PI_SUCCESS;
+}
+
+pi_result after_piKernelGetInfo(pi_kernel kernel, pi_kernel_info param_name,
+                                size_t param_value_size, void *param_value,
+                                size_t *param_value_size_ret) {
+  switch (param_name) {
+  case PI_KERNEL_INFO_CONTEXT:
+    if (param_value_size_ret)
+      *param_value_size_ret = sizeof(GlobalContext.contextHandle);
+    if (param_value)
+      *static_cast<pi_context *>(param_value) = GlobalContext.contextHandle;
+    break;
+  case PI_KERNEL_INFO_PROGRAM:
+    if (param_value_size_ret)
+      *param_value_size_ret = sizeof(GlobalContext.programHandle);
+    if (param_value)
+      *(pi_program *)param_value = GlobalContext.programHandle;
+    break;
+  default:;
+  }
+
+  return PI_SUCCESS;
+}
+
+TEST(HandlerSetArg, LocalAccessor) {
+  sycl::unittest::PiMock Mock;
+
+  Mock.redefine<sycl::detail::PiApiKind::piKernelSetArg>(
+      redefined_piKernelSetArg);
+  Mock.redefineAfter<sycl::detail::PiApiKind::piContextCreate>(
+      after_piContextCreate);
+  Mock.redefineAfter<sycl::detail::PiApiKind::piProgramGetInfo>(
+      after_piProgramGetInfo);
+  Mock.redefineAfter<sycl::detail::PiApiKind::piContextGetInfo>(
+      after_piContextGetInfo);
+  Mock.redefineAfter<sycl::detail::PiApiKind::piKernelGetInfo>(
+      after_piKernelGetInfo);
+  Mock.redefine<sycl::detail::PiApiKind::piProgramGetBuildInfo>(
+      redefined_piProgramGetBuildInfo);
+
+  constexpr size_t Size = 128;
+  sycl::queue Q;
+
+  DummyHandleT handle;
+  auto KernelCL = reinterpret_cast<typename sycl::backend_traits<
+      sycl::backend::opencl>::template input_type<sycl::kernel>>(&handle);
+  auto Kernel =
+      sycl::make_kernel<sycl::backend::opencl>(KernelCL, Q.get_context());
+
+  Q.submit([&](sycl::handler &CGH) {
+     sycl::local_accessor<float, 1> Acc(Size, CGH);
+     CGH.set_arg(0, Acc);
+     CGH.single_task(Kernel);
+   }).wait();
+
+  ASSERT_EQ(GlobalContext.localBufferArgSize, Size * sizeof(float));
+}