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-rw-r--r--ethosu/vela/supported_operators.py18
1 files changed, 16 insertions, 2 deletions
diff --git a/ethosu/vela/supported_operators.py b/ethosu/vela/supported_operators.py
index fdf0c6b3..c4186018 100644
--- a/ethosu/vela/supported_operators.py
+++ b/ethosu/vela/supported_operators.py
@@ -138,9 +138,23 @@ class SupportedOperators:
def check_generic_restrictions(self, op):
# check fully defined shapes
- for t in op.inputs + op.outputs:
+ for t in op.inputs:
if not t.has_fully_defined_shape():
- print("Warning:", op, "has inputs/outputs of undefined shape, placing on CPU")
+ print("Warning:", op.type, "has input(s) of undefined shape, placing on CPU")
+ return False
+ if t.shape == [] and op.type not in self.binary_elem_wise_main_ops:
+ print("Warning:", op.type, "has input(s) of shape [].",
+ "Scalar input or broadcasting is not supported for this operator,",
+ "placing on CPU")
+ return False
+ for t in op.outputs:
+ if not t.has_fully_defined_shape():
+ print("Warning:", op.type, "has output(s) of undefined shape, placing on CPU")
+ return False
+ if t.shape == []:
+ print("Warning:", op.type, "has output(s) of shape [].",
+ "Scalar input or broadcasting is not supported for this operator,",
+ "placing on CPU")
return False
# check data type