[SYCL][UR] do not expose UR as a backend of SYCL

sycl/include/sycl/backend_types.hpp

@@ -32,7 +32,6 @@ enum class backend : char {
       ext_intel_esimd_emulator,
   ext_oneapi_hip = 6,
   hip __SYCL2020_DEPRECATED("use 'ext_oneapi_hip' instead") = ext_oneapi_hip,
-  ext_oneapi_unified_runtime = 7,
 };
 
 template <backend Backend> class backend_traits;
@@ -64,9 +63,6 @@ inline std::ostream &operator<<(std::ostream &Out, backend be) {
   case backend::ext_oneapi_hip:
     Out << "ext_oneapi_hip";
     break;
-  case backend::ext_oneapi_unified_runtime:
-    Out << "ext_oneapi_unified_runtime";
-    break;
   case backend::all:
     Out << "all";
   }

sycl/include/sycl/detail/pi.hpp

@@ -70,29 +70,25 @@ bool trace(TraceLevel level);
 #define __SYCL_CUDA_PLUGIN_NAME "pi_cuda.dll"
 #define __SYCL_ESIMD_EMULATOR_PLUGIN_NAME "pi_esimd_emulator.dll"
 #define __SYCL_HIP_PLUGIN_NAME "libpi_hip.dll"
-#define __SYCL_UNIFIED_RUNTIME_PLUGIN_NAME "pi_unified_runtime.dll"
 #else
 #define __SYCL_OPENCL_PLUGIN_NAME "libpi_opencl.dll"
 #define __SYCL_LEVEL_ZERO_PLUGIN_NAME "libpi_level_zero.dll"
 #define __SYCL_CUDA_PLUGIN_NAME "libpi_cuda.dll"
 #define __SYCL_ESIMD_EMULATOR_PLUGIN_NAME "libpi_esimd_emulator.dll"
 #define __SYCL_HIP_PLUGIN_NAME "libpi_hip.dll"
-#define __SYCL_UNIFIED_RUNTIME_PLUGIN_NAME "libpi_unified_runtime.dll"
 #endif
 #elif defined(__SYCL_RT_OS_LINUX)
 #define __SYCL_OPENCL_PLUGIN_NAME "libpi_opencl.so"
 #define __SYCL_LEVEL_ZERO_PLUGIN_NAME "libpi_level_zero.so"
 #define __SYCL_CUDA_PLUGIN_NAME "libpi_cuda.so"
 #define __SYCL_ESIMD_EMULATOR_PLUGIN_NAME "libpi_esimd_emulator.so"
-#define __SYCL_UNIFIED_RUNTIME_PLUGIN_NAME "libpi_unified_runtime.so"
 #define __SYCL_HIP_PLUGIN_NAME "libpi_hip.so"
 #elif defined(__SYCL_RT_OS_DARWIN)
 #define __SYCL_OPENCL_PLUGIN_NAME "libpi_opencl.dylib"
 #define __SYCL_LEVEL_ZERO_PLUGIN_NAME "libpi_level_zero.dylib"
 #define __SYCL_CUDA_PLUGIN_NAME "libpi_cuda.dylib"
 #define __SYCL_ESIMD_EMULATOR_PLUGIN_NAME "libpi_esimd_emulator.dylib"
 #define __SYCL_HIP_PLUGIN_NAME "libpi_hip.dylib"
-#define __SYCL_UNIFIED_RUNTIME_PLUGIN_NAME "libpi_unified_runtime.dylib"
 #else
 #error "Unsupported OS"
 #endif

sycl/source/detail/config.cpp

@@ -172,15 +172,14 @@ getSyclDeviceTypeMap() {
 
 // Array is used by SYCL_DEVICE_FILTER and SYCL_DEVICE_ALLOWLIST and
 // ONEAPI_DEVICE_SELECTOR
-const std::array<std::pair<std::string, backend>, 8> &getSyclBeMap() {
-  static const std::array<std::pair<std::string, backend>, 8> SyclBeMap = {
+const std::array<std::pair<std::string, backend>, 7> &getSyclBeMap() {
+  static const std::array<std::pair<std::string, backend>, 7> SyclBeMap = {
       {{"host", backend::host},
        {"opencl", backend::opencl},
        {"level_zero", backend::ext_oneapi_level_zero},
        {"cuda", backend::ext_oneapi_cuda},
        {"hip", backend::ext_oneapi_hip},
        {"esimd_emulator", backend::ext_intel_esimd_emulator},
-       {"ext_oneapi_unified_runtime", backend::ext_oneapi_unified_runtime},
        {"*", backend::all}}};
   return SyclBeMap;
 }

sycl/source/detail/config.hpp

@@ -237,7 +237,7 @@ getSyclDeviceTypeMap();
 
 // Array is used by SYCL_DEVICE_FILTER and SYCL_DEVICE_ALLOWLIST and
 // ONEAPI_DEVICE_SELECTOR
-const std::array<std::pair<std::string, backend>, 8> &getSyclBeMap();
+const std::array<std::pair<std::string, backend>, 7> &getSyclBeMap();
 
 // ---------------------------------------
 // ONEAPI_DEVICE_SELECTOR support

sycl/source/detail/pi.cpp

@@ -280,8 +280,6 @@ std::vector<std::pair<std::string, backend>> findPlugins() {
                           "conjunction with SYCL_DEVICE_FILTER");
   } else if (!FilterList && !OdsTargetList) {
     PluginNames.emplace_back(__SYCL_OPENCL_PLUGIN_NAME, backend::opencl);
-    PluginNames.emplace_back(__SYCL_UNIFIED_RUNTIME_PLUGIN_NAME,
-                             backend::ext_oneapi_unified_runtime);
     PluginNames.emplace_back(__SYCL_LEVEL_ZERO_PLUGIN_NAME,
                              backend::ext_oneapi_level_zero);
     PluginNames.emplace_back(__SYCL_CUDA_PLUGIN_NAME, backend::ext_oneapi_cuda);
@@ -329,10 +327,6 @@ std::vector<std::pair<std::string, backend>> findPlugins() {
     if (list.backendCompatible(backend::opencl)) {
       PluginNames.emplace_back(__SYCL_OPENCL_PLUGIN_NAME, backend::opencl);
     }
-    if (list.backendCompatible(backend::ext_oneapi_unified_runtime)) {
-      PluginNames.emplace_back(__SYCL_UNIFIED_RUNTIME_PLUGIN_NAME,
-                               backend::ext_oneapi_unified_runtime);
-    }
     if (list.backendCompatible(backend::ext_oneapi_level_zero)) {
       PluginNames.emplace_back(__SYCL_LEVEL_ZERO_PLUGIN_NAME,
                                backend::ext_oneapi_level_zero);

sycl/test-e2e/Plugin/sycl-ls-unified-runtime.cpp

@@ -1,7 +1,7 @@
 // REQUIRES: TEMPORARY_DISABLED
 //  Unified Runtime will soon be changing its reporting.
 //
-// RUN: env ONEAPI_DEVICE_SELECTOR="ext_oneapi_unified_runtime:*" sycl-ls --verbose 2>&1 %GPU_CHECK_PLACEHOLDER
+// RUN: env ONEAPI_DEVICE_SELECTOR="ext_oneapi_level_zero:*" sycl-ls --verbose 2>&1 %GPU_CHECK_PLACEHOLDER
 
 // CHECK: 	Platforms: 1
 // CHECK-NEXT:	Platform [#1]:

sycl/test-e2e/Regression/device_num.cpp

@@ -26,7 +26,6 @@ const std::map<backend, std::string> BackendStringMap = {
     {backend::opencl, "opencl"},
     {backend::host, "host"},
     {backend::ext_oneapi_level_zero, "ext_oneapi_level_zero"},
-    {backend::ext_oneapi_unified_runtime, "ext_oneapi_unified_runtime"},
     {backend::ext_intel_esimd_emulator, "ext_intel_esimd_emulator"},
     {backend::ext_oneapi_cuda, "ext_oneapi_cuda"},
     {backend::ext_oneapi_hip, "ext_oneapi_hip"}};

sycl/unittests/allowlist/ParseAllowList.cpp

@@ -167,13 +167,9 @@ TEST(ParseAllowListTests, CheckAllValidBackendNameValuesAreProcessed) {
   sycl::detail::AllowListParsedT ActualValue =
       sycl::detail::parseAllowList(AllowList);
   sycl::detail::AllowListParsedT ExpectedValue{
-      {{"BackendName", "host"}},
-      {{"BackendName", "opencl"}},
-      {{"BackendName", "level_zero"}},
-      {{"BackendName", "cuda"}},
-      {{"BackendName", "hip"}},
-      {{"BackendName", "esimd_emulator"}},
-      {{"BackendName", "ext_oneapi_unified_runtime"}},
+      {{"BackendName", "host"}},       {{"BackendName", "opencl"}},
+      {{"BackendName", "level_zero"}}, {{"BackendName", "cuda"}},
+      {{"BackendName", "hip"}},        {{"BackendName", "esimd_emulator"}},
       {{"BackendName", "*"}}};
   EXPECT_EQ(ExpectedValue, ActualValue);
 }