minor updates for the OpenCL C++ bindings (#119)

* minor updates for the OpenCL C++ bindings

Completely removes CL_SEMAPHORE_HANDLE_D3D12_FENCE_KHR
Fixes an ifdef comment

* add queries for cl_intel_required_subgroup_size

include/CL/opencl.hpp

@@ -1490,9 +1490,6 @@ inline cl_int getInfoHelper(Func f, cl_uint name, T* param, int, typename T::cl_
     F(cl_device_info, CL_DEVICE_SEMAPHORE_EXPORT_HANDLE_TYPES_KHR,      cl::vector<cl_external_semaphore_handle_type_khr>) \
     F(cl_semaphore_info_khr, CL_SEMAPHORE_EXPORT_HANDLE_TYPES_KHR,      cl::vector<cl_external_semaphore_handle_type_khr>) \
 
-#define CL_HPP_PARAM_NAME_CL_KHR_EXTERNAL_SEMAPHORE_DX_FENCE_EXT(F) \
-    F(cl_external_semaphore_handle_type_khr, CL_SEMAPHORE_HANDLE_D3D12_FENCE_KHR, void*) \
-
 #define CL_HPP_PARAM_NAME_CL_KHR_EXTERNAL_SEMAPHORE_OPAQUE_FD_EXT(F) \
     F(cl_external_semaphore_handle_type_khr, CL_SEMAPHORE_HANDLE_OPAQUE_FD_KHR, int) \
 
@@ -1816,9 +1813,14 @@ CL_HPP_DECLARE_PARAM_TRAITS_(cl_device_info, CL_DEVICE_NUM_THREADS_PER_EU_INTEL,
 CL_HPP_DECLARE_PARAM_TRAITS_(cl_device_info, CL_DEVICE_FEATURE_CAPABILITIES_INTEL, cl_device_feature_capabilities_intel)
 #endif // cl_intel_device_attribute_query
 
+#if defined(cl_intel_required_subgroup_size)
+CL_HPP_DECLARE_PARAM_TRAITS_(cl_device_info, CL_DEVICE_SUB_GROUP_SIZES_INTEL, cl::vector<size_type>)
+CL_HPP_DECLARE_PARAM_TRAITS_(cl_kernel_work_group_info, CL_KERNEL_SPILL_MEM_SIZE_INTEL, cl_ulong)
+#endif // cl_intel_required_subgroup_size
+
 #if defined(cl_intel_unified_shared_memory)
 CL_HPP_PARAM_NAME_CL_INTEL_UNIFIED_SHARED_MEMORY_(CL_HPP_DECLARE_PARAM_TRAITS_)
-#endif // cl_intel_command_queue_families
+#endif // cl_intel_unified_shared_memory
 
 // Convenience functions