!9884 Fix bug while there are multiple embedding-lookup

From: @zpac
Reviewed-by: @limingqi107,@kisnwang
Signed-off-by: @kisnwang

mindspore/ccsrc/backend/kernel_compiler/cpu/ps/sparse_apply_adam_ps_kernel.cc

@@ -82,6 +82,9 @@ void SparseApplyAdamPSKernel::ReInit(const std::vector<AddressPtr> &inputs) {
 bool SparseApplyAdamPSKernel::Execute(const std::vector<AddressPtr> &inputs, const std::vector<AddressPtr> &workspace,
                                       const std::vector<AddressPtr> &outputs) {
   ReInit(inputs);
+  if (indices_size_ == 0) {
+    return true;
+  }
   return Launch(inputs, workspace, outputs);
 }
 

mindspore/ccsrc/backend/kernel_compiler/cpu/ps/sparse_apply_ftrl_ps_kernel.cc

@@ -89,6 +89,9 @@ void SparseApplyFtrlPSKernel::ReInit(const std::vector<AddressPtr> &inputs) {
 bool SparseApplyFtrlPSKernel::Execute(const std::vector<AddressPtr> &inputs, const std::vector<AddressPtr> &workspace,
                                       const std::vector<AddressPtr> &outputs) {
   ReInit(inputs);
+  if (indices_size_ == 0) {
+    return true;
+  }
   return Launch(inputs, workspace, outputs);
 }
 

mindspore/ccsrc/backend/kernel_compiler/cpu/ps/sparse_apply_lazy_adam_ps_kernel.cc

@@ -82,6 +82,9 @@ bool SparseApplyLazyAdamPSKernel::Execute(const std::vector<AddressPtr> &inputs,
                                           const std::vector<AddressPtr> &workspace,
                                           const std::vector<AddressPtr> &outputs) {
   ReInit(inputs);
+  if (indices_size_ == 0) {
+    return true;
+  }
   return Launch(inputs, workspace, outputs);
 }