[Bugfix] No opcounters in function arguments...

python/dune/codegen/sumfact/autotune.py

@@ -207,6 +207,10 @@ def generate_standalone_code_google_benchmark(sf, filename):
     write_global_data(sf, filename)
 
     with open(filename, "a") as f:
+        arguments = ', '.join(sf.interface.signature_args)
+        if len(arguments) > 0:
+            arguments = ', ' + arguments
+        arguments = 'const char* buffer0, const char* buffer 1' + arguments
         f.write("void sumfact_kernel({})\n".format(arguments))
         for line in knl.member.lines[1:]:
             f.write("{}\n".format(line))