1. add shuffle_channel_detect

Author: NHZlX

paddle/fluid/framework/ir/CMakeLists.txt

@@ -70,6 +70,7 @@ pass_library(sync_batch_norm_pass base)
 pass_library(runtime_context_cache_pass base)
 pass_library(quant_conv2d_dequant_fuse_pass inference)
 pass_library(fillconstant_elementwisemul_fuse inference)
+pass_library(shuffle_channel_detect_pass inference)
 
 if(ANAKIN_FOUND)
 pass_library(simplify_anakin_priorbox_detection_out_pass inference)

paddle/fluid/framework/ir/graph_pattern_detector.cc

@@ -1706,6 +1706,37 @@ void patterns::QuantDequantOpFuse::operator()(PDNode *quant_op_input,
   }
 }
 
+void patterns::ShuffleChannelPattern::operator()(PDNode *reshape1_in) {
+  auto reshape1_op =
+      pattern->NewNode(reshape1_op_repr())->assert_is_op("reshape2");
+
+  auto reshape1_out = pattern->NewNode(reshape1_out_repr())
+                          ->assert_is_op_output("reshape2", "Out")
+                          ->assert_is_op_input("transpose2")
+                          ->AsIntermediate();
+
+  auto transpose_op =
+      pattern->NewNode(transpose_op_repr())->assert_is_op("transpose2");
+
+  auto transpose_out = pattern->NewNode(transpose_out_repr())
+                           ->assert_is_op_output("transpose2", "Out")
+                           ->assert_is_op_input("reshape2")
+                           ->AsIntermediate();
+
+  auto reshape2_op =
+      pattern->NewNode(reshape2_op_repr())->assert_is_op("reshape2");
+  auto reshape2_out = pattern->NewNode(reshape2_out_repr())
+                          ->assert_is_op_output("reshape2", "Out")
+                          ->AsOutput();
+
+  reshape1_op->LinksFrom({reshape1_in});
+  reshape1_out->LinksFrom({reshape1_op});
+  transpose_op->LinksFrom({reshape1_out});
+  transpose_out->LinksFrom({transpose_op});
+  reshape2_op->LinksFrom({transpose_out});
+  reshape2_out->LinksFrom({reshape2_op});
+}
+
 }  // namespace ir
 }  // namespace framework
 }  // namespace paddle

paddle/fluid/framework/ir/graph_pattern_detector.h

@@ -892,6 +892,21 @@ struct QuantDequantOpFuse : public PatternBase {
   }
 };
 
+struct ShuffleChannelPattern : public PatternBase {
+  ShuffleChannelPattern(PDPattern* pattern, const std::string& name_scope)
+      : PatternBase(pattern, name_scope, "shufflechannel_pattern") {}
+
+  void operator()(PDNode* reshape1_in);
+
+  PATTERN_DECL_NODE(reshape1_op);
+  PATTERN_DECL_NODE(reshape1_out);
+
+  PATTERN_DECL_NODE(transpose_op);
+  PATTERN_DECL_NODE(transpose_out);
+  PATTERN_DECL_NODE(reshape2_op);
+  PATTERN_DECL_NODE(reshape2_out);
+};
+
 }  // namespace patterns
 
 // Link two ir::Nodes from each other.

paddle/fluid/inference/api/paddle_pass_builder.cc

@@ -79,7 +79,11 @@ const std::vector<std::string> kAnakinSubgraphPasses({
     "fc_fuse_pass",                                 //
     "conv_elementwise_add_fuse_pass",               //
     "fc_gru_fuse_pass",                             //
+    "graph_viz_pass",                               //
+    "shuffle_channel_detect_pass",                  //
+    "graph_viz_pass",                               //
     "anakin_subgraph_pass",                         //
+    "graph_viz_pass",                               //
     "fc_gru_fuse_pass",                             //
 });