!12145 cpu support tensor scalar

From: @huaweib
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

mindspore/ccsrc/backend/kernel_compiler/cpu/mkldnn/assignadd_cpu_kernel.cc

@@ -24,6 +24,10 @@ void AssignAddCPUKernel::InitKernel(const CNodePtr &kernel_node) {
   MS_EXCEPTION_IF_NULL(kernel_node);
   std::vector<size_t> src0_shape = AnfAlgo::GetInputDeviceShape(kernel_node, 0);
   std::vector<size_t> src1_shape = AnfAlgo::GetInputDeviceShape(kernel_node, 1);
+  if (src1_shape.size() == 0 && src0_shape.size() == 0) {
+    src0_shape.insert(src0_shape.begin(), 1);
+    src1_shape.insert(src1_shape.begin(), 1);
+  }
   if (src0_shape.size() != src1_shape.size() && src1_shape.size() > 1) {
     MS_LOG(EXCEPTION) << "AssignAdd only support same dim input or tensor * scalar " << src0_shape.size() << " vs "
                       << src1_shape.size();

mindspore/ccsrc/backend/kernel_compiler/cpu/mkldnn/mkl_cpu_kernel.cc

@@ -133,7 +133,11 @@ dnnl::memory::format_tag MKLCPUKernel::GetDefaultFormatTag(const dnnl::memory::d
 
 dnnl::memory::desc MKLCPUKernel::GetDefaultMemDesc(const std::vector<size_t> &shape) {
   dnnl::memory::dims dims;
-  dims.insert(dims.end(), shape.begin(), shape.end());
+  if (shape.size() == 0) {
+    dims.insert(dims.end(), 1);
+  } else {
+    dims.insert(dims.end(), shape.begin(), shape.end());
+  }
   dnnl::memory::format_tag mem_tag = GetDefaultFormatTag(dims);
   dnnl::memory::desc mem_desc(dims, dnnl::memory::data_type::f32, mem_tag);
   return mem_desc;