add ONNX ReduceL1/L2 op and fixed clip op (#635)

* add ReduceL1/L2 op and fixed clip op

* remove print

* fixed comments

x2paddle/decoder/tf_decoder.py

@@ -99,7 +99,6 @@ class TFGraphNode(GraphNode):
     @property
     def name(self):
         if hasattr(self, 'index'):
-            print(self.layer_type)
             return self.layer_name + "_p{}".format(self.index)
         return self.layer_name
 

x2paddle/op_mapper/onnx2paddle/opset9/opset.py

@@ -1181,7 +1181,7 @@ class OpSet9():
                     outputs=[node.name],
                     **layer_attrs)
             else:
-            raise
+                raise Exception("max_value or min_value can't be None")
 
     @print_mapping_info
     def Split(self, node):
@@ -2226,3 +2226,31 @@ class OpSet9():
                     "scores": scores.name},
             outputs=layer_outputs,
             **layer_attrs)
+
+    @print_mapping_info
+    def ReduceL1(self, node):
+        output_name = node.name
+        layer_outputs = [output_name]
+        val_x = self.graph.get_input_node(node, idx=0, copy=True)
+        axes = node.get_attr('axes')
+        keepdims = False if node.get_attr('keepdims') == 0 else True
+        layer_attrs = {'p': 1, 'axis': axes, 'keepdim': keepdims}
+        self.paddle_graph.add_layer(
+            "paddle.norm",
+            inputs={"x": val_x.name},
+            outputs=layer_outputs,
+            **layer_attrs)
+
+    @print_mapping_info
+    def ReduceL2(self, node):
+        output_name = node.name
+        layer_outputs = [output_name]
+        val_x = self.graph.get_input_node(node, idx=0, copy=True)
+        axes = node.get_attr('axes')
+        keepdims = False if node.get_attr('keepdims') == 0 else True
+        layer_attrs = {'p': 2, 'axis': axes, 'keepdim': keepdims}
+        self.paddle_graph.add_layer(
+            "paddle.norm",
+            inputs={"x": val_x.name},
+            outputs=layer_outputs,
+            **layer_attrs)