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From GitBox <...@apache.org>
Subject [GitHub] [incubator-tvm] maheshambule commented on a change in pull request #5330: [Frontend][TFLite] support for FILL and SPLIT_V operators
Date Tue, 14 Apr 2020 13:02:01 GMT
maheshambule commented on a change in pull request #5330: [Frontend][TFLite] support for FILL
and SPLIT_V operators
URL: https://github.com/apache/incubator-tvm/pull/5330#discussion_r408117481
 
 

 ##########
 File path: python/tvm/relay/frontend/tflite.py
 ##########
 @@ -1488,6 +1511,42 @@ def convert_split(self, op):
 
         return out
 
+    def convert_split_v(self, op):
+        """SPLIT_V implementation."""
+        try:
+            from tflite.Operator import Operator
+        except ImportError:
+            raise ImportError("The tflite package must be installed")
+
+        assert isinstance(op, Operator)
+        input_tensors = self.get_input_tensors(op)
+
+        assert len(input_tensors) == 3, "input tensors length should be == 3"
+
+        axis_tensor = input_tensors[2]
+        split_axis = self.get_tensor_value(axis_tensor)
+        input_tensor = input_tensors[0]
+        input_tensor_idx = input_tensor.tensor_idx
+
+        in_expr = self.get_expr(input_tensor_idx)
+        if self.has_expr(input_tensors[1].tensor_idx):
+            raise tvm.error.OpNotImplemented("For size_splits parameter of SPLIT_V operator,
"
+                                             "only constant values are supported.")
+
+        size_splits = list(self.get_tensor_value(input_tensors[1]))
+        size_splits = tuple(np.cumsum(size_splits)[:-1])
+
+        out = _op.split(in_expr, size_splits, axis=int(split_axis))
+        # Relay does not like a TupleWrapper of 1 element, further this
+        # only shows up with tf1.13 if we use a split with num_splits==1.
+        # In tf 1.14 this doesn't appear as it is automatically a reshape
+        # operation.
+        if isinstance(out, _expr.TupleWrapper):
+            if out.size == 1:
 
 Review comment:
   done

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