Added a FIXME comment.

Author: bader

sycl/source/detail/program_manager/program_manager.cpp

@@ -555,6 +555,11 @@ RT::PiProgram ProgramManager::getBuiltPIProgram(
     return BuiltProgram.release();
   };
 
+  // FIXME: Level Zero creates multiple PiDevices for a single physical device
+  // when sub-device is partitioned into sub-sub-devices. Sub-sub-device is
+  // technically a command queue and we should not build program for each
+  // command queue. PiDevice probably not the right abstraction for a Level Zero
+  // command queue.
   const RT::PiDevice PiDevice = Dev->getHandleRef();
 
   auto BuildResult = getOrBuild<PiProgramT, compile_program_error>(