Added broadcast layout infernece (#438)

Signed-off-by: Chen Xin <jack.chen@verisilicon.com>

Co-authored-by: Chen Xin <jack.chen@verisilicon.com>

src/tim/transform/layout_inference.cc

@@ -63,6 +63,7 @@
 #include "ops/default_layout_inference.h"
 #include "ops/transpose_layout_inference.h"
 #include "ops/unidirectional_lstm_layout_inference.h"
+#include "ops/broadcast_layout_inference.h"
 
 #include <algorithm>
 #include <deque>
@@ -265,6 +266,7 @@ std::vector<std::shared_ptr<vx::Tensor>> HandleLayoutInfer(
     REGIST_LAYOUT_INFERENCE(VSI_NN_OP_PERMUTE, Transpose);
     REGIST_LAYOUT_INFERENCE(VSI_NN_OP_CONV3D, Conv3d);
     REGIST_LAYOUT_INFERENCE(VSI_NN_OP_LSTM_OVXLIB, UnidirectionalLstm);
+    REGIST_LAYOUT_INFERENCE(VSI_NN_OP_EXPAND_BROADCAST, Broadcast);
     REGIST_LOGICAL_LAYOUT_INFERENCE(VSI_NN_OP_LOGICAL_OPS);
     REGIST_REDUCE_LAYOUT_INFERENCE(VSI_NN_OP_REDUCE);
     // use default layout inference

src/tim/transform/ops/broadcast_layout_inference.h

@@ -0,0 +1,71 @@
+/****************************************************************************
+ *
+ *    Copyright (c) 2022 Vivante Corporation
+ *
+ *    Permission is hereby granted, free of charge, to any person obtaining a
+ *    copy of this software and associated documentation files (the "Software"),
+ *    to deal in the Software without restriction, including without limitation
+ *    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *    and/or sell copies of the Software, and to permit persons to whom the
+ *    Software is furnished to do so, subject to the following conditions:
+ *
+ *    The above copyright notice and this permission notice shall be included in
+ *    all copies or substantial portions of the Software.
+ *
+ *    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ *    DEALINGS IN THE SOFTWARE.
+ *
+ *****************************************************************************/
+#ifndef TIM_LAYOUT_INFER_BROADCAST_LAYOUT_INFERENCE_H_
+#define TIM_LAYOUT_INFER_BROADCAST_LAYOUT_INFERENCE_H_
+
+#include "ops/op_layout_inference.h"
+#include "permute_vector.h"
+#include "direct_map_op_impl.h"
+
+namespace tim {
+namespace transform {
+
+class BroadcastLayoutInfer : public OpLayoutInfer {
+ public:
+  BroadcastLayoutInfer(
+      const std::shared_ptr<vx::Operation> op,
+      std::shared_ptr<layout_inference_impl::LayoutInferContext>& context)
+      : OpLayoutInfer(op, context) {}
+
+  // reverse any applied permute on it's input tensor
+  void OnInputs(
+      std::vector<std::shared_ptr<vx::Tensor>>& next_tensors) override {
+    ReverseInputsPermuteVector();
+
+    auto cloned_op = op_->Clone(context_->infer_graph_);
+
+    for (const auto& i_src : op_->impl()->InputsTensor()) {
+      (*cloned_op).BindInput(context_->GetMapedTensor(i_src));
+    }
+
+    std::vector<std::shared_ptr<IPermuteVector>> required_pv_lst;
+    for (auto out_tensor : op_->impl()->OutputsTensor()) {
+      required_pv_lst.push_back(
+          MakeShared(op_->impl()->node()->nn_param.expand_broadcast.dim_num));
+    }
+    auto out_infer = CreateOutputsTensor(required_pv_lst);
+
+    (*cloned_op).BindOutputs(out_infer);
+    uint32_t i = 0;
+    for (auto out_tensor : op_->impl()->OutputsTensor()) {
+      context_->SetPermuteVector(out_tensor, required_pv_lst[i++]);
+      next_tensors.push_back(out_tensor);
+    }
+  }
+};
+
+}  // namespace transform
+}  // namespace tim
+
+#endif