Added automatic code generation for final state Eager Dygraph

paddle/fluid/eager/auto_code_generator/CMakeLists.txt

+add_subdirectory(final_state_generator)
+
 set(EAGER_GENERETOR_DEPS ${GLOB_OP_LIB} ${GLOB_OPERATOR_DEPS} pybind proto_desc executor layer tracer engine imperative_profiler imperative_flag)
 
 add_executable(eager_generator eager_generator.cc)

paddle/fluid/eager/auto_code_generator/final_state_generator/test.py

+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name = "A"
+B = "B"
+C = "C"
+D = "D"
+E = "E"
+x = """
+class GradNode%s : public egr::GradNodeBase {{
+   public:
+    GradNode%s() : egr::GradNodeBase() {{}}
+    GradNode%s(size_t bwd_in_slot_num, size_t bwd_out_slot_num) : 
+  egr::GradNodeBase(bwd_in_slot_num, bwd_out_slot_num) {{}}
+    ~GradNode%s() override = default;
+  
+    virtual std::vector<std::vector<egr::EagerTensor>>
+  operator()(const
+  std::vector<std::vector<egr::EagerTensor>>& grads)
+  override;
+  
+    // SetX, SetY, ...
+  {}
+    // SetAttrMap
+  {}
+  
+   private:
+     // TensorWrappers
+  {}
+     // Attribute Map
+  {}
+}};
+"""
+
+print(x.format("A", "B", "C", "D"))

python/paddle/utils/code_gen/api.yaml

@@ -111,6 +111,7 @@
     func : MatmulInferMeta
   kernel : 
     func : matmul
+  backward : matmul_grad
 
 - api : mean
   args : (const Tensor& x, const std::vector<int64_t>& axis={}, bool keep_dim=false)