Detect name collision

Author: rolfmorel

tools/tpp-tune/tpp-tune.py

@@ -46,6 +46,8 @@ def autotune(choices: Dict[str, Sequence[ir.Attribute]]) -> Dict[str, ir.Attribu
     @walker
     def choices_finder(op):
         if isinstance(op, transform_tune.TuneSelectOp):
+            if op.name in choices:
+                raise RuntimeError(f"options name collision: {op.name} used twice")
             choices[op.name] = tuple(op.options)
 
     choices_finder(schedule.operation)