[Fixbug] Binary arthmatic ops raise error when one is scalar on GPU (#…

…109)

fix a bug in binary arthmatic ops

python/hidet/graph/ops/definitions/arithmetic.py

@@ -475,15 +475,15 @@ def binary_arithmetic(
     elif isinstance(x, float):
         x = dtypes.float32(x)
     elif isinstance(x, Tensor) and len(x.shape) == 0:
-        if x.trace is None:
+        if x.trace is None and x.storage is not None:
             x = x.dtype(x.item())
 
     if isinstance(y, int):
         y = dtypes.int32(y)
     elif isinstance(y, float):
         y = dtypes.float32(y)
     elif isinstance(y, Tensor) and len(y.shape) == 0:
-        if y.trace is None:
+        if y.trace is None and y.storage is not None:
             y = y.dtype(y.item())
 
     if isinstance(x, Tensor) and isinstance(y, Tensor):