modify the condition of pattern match in bnupdate + eltwise fusion pass

mindspore/ccsrc/backend/optimizer/ascend/buffer_fusion/bnupdate_eltwise_fusion_pass.cc

@@ -27,15 +27,15 @@
 
 namespace mindspore {
 namespace opt {
-void BnupdateEltwiseFusionPass::MatchBnupdateRelu(const CNodePtr &cnode, const AnfNodePtr &relu_input,
-                                                  const session::KernelGraph &kernel_graph,
-                                                  FusedNodeRecord *candidate_fusion) {
+void BnupdateEltwiseFusionPass::MatchBnupdateDoubleOutputEltwise(const CNodePtr &cnode, const AnfNodePtr &eltwise_input,
+                                                                 const session::KernelGraph &kernel_graph,
+                                                                 FusedNodeRecord *candidate_fusion) {
   MS_EXCEPTION_IF_NULL(cnode);
   MS_EXCEPTION_IF_NULL(candidate_fusion);
   auto manager = kernel_graph.manager();
   MS_EXCEPTION_IF_NULL(manager);
-  MS_EXCEPTION_IF_NULL(relu_input);
-  auto getitem = relu_input->cast<CNodePtr>();
+  MS_EXCEPTION_IF_NULL(eltwise_input);
+  auto getitem = eltwise_input->cast<CNodePtr>();
   MS_EXCEPTION_IF_NULL(getitem);
   auto bnupdate = getitem->input(1);
   MS_EXCEPTION_IF_NULL(bnupdate);
@@ -68,10 +68,11 @@ void BnupdateEltwiseFusionPass::MatchSingleFusionPattern(const session::KernelGr
     auto cnode = node->cast<CNodePtr>();
     MS_EXCEPTION_IF_NULL(cnode);
     if (AnfAlgo::GetKernelType(cnode) == KernelType::TBE_KERNEL &&
-        AnfAlgo::GetFusionType(cnode) == kernel::FusionType::ELEMWISE) {
+        AnfAlgo::GetFusionType(cnode) == kernel::FusionType::ELEMWISE &&
+        AnfAlgo::GetOutputTensorNum(cnode) == ELTWISE_DOUBLE_OUTPUT_SIZE) {
       auto eltwise_input = cnode->input(1);
       if (eltwise_input->isa<CNode>() && AnfAlgo::CheckPrimitiveType(eltwise_input, prim::kPrimTupleGetItem)) {
-        MatchBnupdateRelu(cnode, eltwise_input, kernel_graph, candidate_fusion);
+        MatchBnupdateDoubleOutputEltwise(cnode, eltwise_input, kernel_graph, candidate_fusion);
       }
     }
   }

mindspore/ccsrc/backend/optimizer/ascend/buffer_fusion/bnupdate_eltwise_fusion_pass.h

@@ -39,8 +39,8 @@ class BnupdateEltwiseFusionPass : public FusionBasePass {
   void MatchSingleFusionPattern(const session::KernelGraph &kernel_graph, FusedNodeRecord *candidate_fusion) override;
 
  private:
-  void MatchBnupdateRelu(const CNodePtr &cnode, const AnfNodePtr &relu_input, const session::KernelGraph &kernel_graph,
-                         FusedNodeRecord *candidate_fusion);
+  void MatchBnupdateDoubleOutputEltwise(const CNodePtr &cnode, const AnfNodePtr &eltwise_input,
+                                        const session::KernelGraph &kernel_graph, FusedNodeRecord *candidate_fusion);
 };
 }  // namespace opt
 }  // namespace mindspore

mindspore/ccsrc/backend/optimizer/ascend/buffer_fusion/fusion_base_pass.h

@@ -33,6 +33,7 @@ const int8_t MAX_ELTWISE_NUM = 3;
 const int8_t MIN_ELTWISE_SIZE = 2;
 const int8_t ELTWISE_INPUT_SIZE = 2;
 const int8_t ELTWISE_DOUBLE_IN_INPUT_SIZE = 3;
+const int8_t ELTWISE_DOUBLE_OUTPUT_SIZE = 2;
 const int8_t CONV_DOUBLE_IN_INPUT_SIZE = 3;
 const int8_t CONV_QUART_IN_INPUT_SIZE = 5;
 const int8_t ELTWISE_USE = 1;