add pt2tf tool

2020-09-23 09:09:49 +08:00
parent 7f7b7df65d
commit 18aefa4dd0
407 changed files with 16211 additions and 0 deletions
@@ -0,0 +1,29 @@
+import copy
+import tensorflow as tf
+
+from onnx_tf.handlers.backend_handler import BackendHandler
+from onnx_tf.handlers.handler import onnx_op
+from onnx_tf.handlers.handler import tf_func
+from .gather_and_scatter_mixin import GatherAndScatterMixin
+
+
+@onnx_op("Gather")
+@tf_func(tf.gather)
+class Gather(GatherAndScatterMixin, BackendHandler):
+
+  @classmethod
+  def version_1(cls, node, **kwargs):
+    return [cls.make_tensor_from_onnx_node(node, **kwargs)]
+
+  @classmethod
+  def version_11(cls, node, **kwargs):
+    x = kwargs["tensor_dict"][node.inputs[0]]
+    indices = kwargs["tensor_dict"][node.inputs[1]]
+    attrs = copy.deepcopy(node.attrs)
+    axis = attrs.get("axis", 0)
+    result = cls.chk_idx_out_of_bounds_along_axis(x, axis, indices)
+    msg = 'Gather indices are out of bounds, please double check the indices and retry.'
+    with tf.control_dependencies([tf.compat.v1.assert_equal(result, True, message=msg)]):
+      indices = cls.process_neg_idx_along_axis(x, axis, indices)
+      attrs['axis'] = axis
+      return [cls.make_tensor_from_onnx_node(node, attrs=attrs, inputs=[x, indices], **kwargs)]