fixe mpi_collective detection

src/pass_mpi_collective.cpp

@@ -98,9 +98,9 @@ void pass_mpi_collective::print_tree(function *fun)
 				{
 					printf("\t\t\tStatement is a MPI function call (%s)\n",
 					       fndecl_name(gimple_call_fndecl(stmt)));
-					if (__is_mpi_collec(stmt))
+					if (__is_mpi_collec(stmt) != LAST_AND_UNUSED_MPI_COLLECTIVE_CODE)
 					{
-						printf("\t\t\t\tStatement is a MPI statement (%s)\n",
+						printf("\t\t\t\tStatement is a MPI collective (%s)\n",
 						       fndecl_name(gimple_call_fndecl(stmt)));
 					}
 				}
@@ -213,10 +213,13 @@ void pass_mpi_collective::label_collec(function *fun)
 		{
 			stmt = gsi_stmt(gsi);
 			mpi_code = is_mpi_collec(stmt);
+			if (mpi_code != LAST_AND_UNUSED_MPI_COLLECTIVE_CODE)
+			{
 				((bb_data *) bb->aux)->mpi_code = mpi_code;
 			}
 		}
 	}
+}
 
 void pass_mpi_collective::free_bb_aux(function *fun)
 {