!2048 fix bug of multioutput byway fusion pass

Merge pull request !2048 from Etone.Chan/June

mindspore/ccsrc/pre_activate/ascend/ascend_backend_optimization.cc

@@ -68,7 +68,6 @@
 #include "pre_activate/ascend/buffer_fusion/ub_pattern_fusion.h"
 #include "pre_activate/ascend/buffer_fusion/eltwise_fusion_pass.h"
 #include "pre_activate/ascend/buffer_fusion/multi_output_fusion_pass.h"
-#include "pre_activate/ascend/buffer_fusion/stridedread_conv_stridedwrite_fusion_pass.h"
 #include "pre_activate/ascend/buffer_fusion/conv2dbackprop_eltwise_eltwise_fusion_pass.h"
 #include "pre_activate/ascend/buffer_fusion/conv2dbackprop_eltwise_fusion_pass.h"
 #include "pre_activate/ascend/buffer_fusion/conv_single_in_fusion_pass.h"
@@ -349,7 +348,6 @@ void AscendBackendUBFusionOptimization(const std::shared_ptr<session::KernelGrap
   auto ub_fusion_pm = std::make_shared<PassManager>("ub_fusion_pm");
   ub_fusion_pm->AddPass(std::make_shared<Conv2DBackpropEltwiseEltwiseFusionPass>(fusion_id_allocator));
   ub_fusion_pm->AddPass(std::make_shared<Conv2DBackpropEltwiseFusionPass>(fusion_id_allocator));
-  ub_fusion_pm->AddPass(std::make_shared<StridedReadConvStridedWriteFusionPass>(fusion_id_allocator));
   ub_fusion_pm->AddPass(std::make_shared<ConvBnReduceFusionPass>(fusion_id_allocator));
   ub_fusion_pm->AddPass(std::make_shared<ConvSingleInFusionPass>(fusion_id_allocator));
   ub_fusion_pm->AddPass(std::make_shared<BnupdateEltwiseFusionPass>(fusion_id_allocator));

mindspore/ccsrc/pre_activate/ascend/buffer_fusion/multi_output_fusion_pass.cc

@@ -36,6 +36,8 @@ void MultiOutputFusionPass::MatchMultiOutputEltwise(const CNodePtr &cnode, const
   std::unordered_set<AnfNodePtr> record{cnode};
   auto eltwise_input = cnode->input(1);
   if (CheckMultiOutputEltWiseNode(manager.get(), eltwise_input)) {
+    std::vector<int> output_used_num{SizeToInt(manager->node_users()[eltwise_input].size())};
+    AnfAlgo::SetNodeAttr(kAttrOutputUsedNum, MakeValue(output_used_num), eltwise_input);
     (void)record.insert(eltwise_input);
     auto input_cnode = eltwise_input->cast<CNodePtr>();
     MS_EXCEPTION_IF_NULL(input_cnode);