From 7c5dbd4bfd9a376ce3834c96a9f1b780f0db138c Mon Sep 17 00:00:00 2001
From: wjj19950828 <wjjisloser@163.com>
Date: Mon, 11 Apr 2022 14:52:45 +0800
Subject: [PATCH] add aten::linear

---
 docs/inference_model_convertor/op_list.md |  2 +-
 x2paddle/op_mapper/pytorch2paddle/aten.py | 49 +++++++++++++++++++++++
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/docs/inference_model_convertor/op_list.md b/docs/inference_model_convertor/op_list.md
index ef7dc18..e4996c7 100755
--- a/docs/inference_model_convertor/op_list.md
+++ b/docs/inference_model_convertor/op_list.md
@@ -114,7 +114,7 @@ Aten:
 | 117 | aten::bitwise\_not | 118 | aten::bitwise\_xor | 119 | aten::bitwise\_and | 120 | aten::silu |
 | 121 | aten::repeat\_interleave | 122 | aten::maxpool1d | 123 | aten::frobenius\_norm | 124 | aten::format |
 | 125 | aten::complex | 126 | aten::real | 127 | aten::imag | 128 | aten::fft\_rfftn |
-| 129 | aten::fft\_irfftn |  |  |  |  |  |  |
+| 129 | aten::fft\_irfftn | aten::linear |  |  |  |  |  |
 
 
 Prim:
diff --git a/x2paddle/op_mapper/pytorch2paddle/aten.py b/x2paddle/op_mapper/pytorch2paddle/aten.py
index ff327ce..56d3b7d 100755
--- a/x2paddle/op_mapper/pytorch2paddle/aten.py
+++ b/x2paddle/op_mapper/pytorch2paddle/aten.py
@@ -3176,6 +3176,55 @@ def aten_len(mapper, graph, node):
     return current_inputs, current_outputs
 
 
+def aten_linear(mapper, graph, node):
+    """
+    TorchScript Code:
+        %x.6 : Float(1, 128, strides=[128, 1]) = aten::linear(%input.305, %weight.629, %bias.317)
+        Parameter meaning:
+        %x.6 (Tensor): output
+        %input.305 (Tensor): input tensor
+        %weight.629 (Tensor): weight tensor
+        %bias.317 (Tensor): bias tensor
+    """
+    scope_name = mapper.normalize_scope_name(node)
+    output_name = mapper._get_outputs_name(node)[0]
+    layer_outputs = [output_name]
+    layer_inputs = {}
+    layer_attrs = {}
+    inputs_name, inputs_node = mapper._get_inputs_name(node)
+    # outputs list
+    current_outputs = [output_name]
+    # inputs list
+    mapper._check_input(graph, inputs_node[0], inputs_name[0], current_outputs,
+                        scope_name)
+    layer_inputs["x"] = inputs_name[0]
+    # transpose weight
+    mapper._check_input(graph, inputs_node[1], inputs_name[1], current_outputs,
+                        scope_name)
+    layer_attrs_transpose = {}
+    layer_attrs_transpose["perm"] = [1, 0]
+    graph.add_layer(
+        "paddle.transpose",
+        inputs={"x": inputs_name[1]},
+        outputs=[inputs_name[1] + "_transpose"],
+        scope_name=scope_name,
+        **layer_attrs_transpose)
+    layer_inputs["weight"] = inputs_name[1] + "_transpose"
+    if len(inputs_name) == 3:
+        mapper._check_input(graph, inputs_node[2], inputs_name[2],
+                            current_outputs, scope_name)
+        layer_inputs["bias"] = inputs_name[2]
+    current_inputs = list(layer_inputs.values())
+
+    graph.add_layer(
+        "paddle.nn.functional.linear",
+        inputs=layer_inputs,
+        outputs=layer_outputs,
+        scope_name=scope_name,
+        **layer_attrs)
+    return current_inputs, current_outputs
+
+
 def aten_log(mapper, graph, node):
     """ 构构造log的PaddleLayer。
     TorchScript示例:
-- 
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