!8911 add control flow error of dynamic shape

From: @hwjiaorui
Reviewed-by: @jjfeing,@kisnwang
Signed-off-by: @kisnwang

mindspore/ccsrc/backend/session/ascend_session.cc

@@ -146,8 +146,7 @@ GraphId AscendSession::CompileGraphImpl(NotNull<FuncGraphPtr> func_graph) {
   std::vector<KernelGraphPtr> all_graphs;
   auto root_graph = ConstructKernelGraph(func_graph, &all_graphs);
   // Update Graph Dynamic Shape Attr
-  UpdateGraphDynamicShapeAttr(NOT_NULL(root_graph));
-  root_graph->UpdateGraphDynamicAttr();
+  UpdateAllGraphDynamicShapeAttr(all_graphs);
   BackendOptimization(all_graphs);
   // empty graph dont entry to backend
   if (root_graph->execution_order().empty()) {

mindspore/ccsrc/backend/session/session_basic.cc

@@ -1592,6 +1592,17 @@ bool IsNodeInputDynamicShape(const CNodePtr &anf_node_ptr) {
   return false;
 }
 
+void SessionBasic::UpdateAllGraphDynamicShapeAttr(const std::vector<KernelGraphPtr> &all_graphs) {
+  bool is_dynamic = false;
+  for (const auto &graph : all_graphs) {
+    UpdateGraphDynamicShapeAttr(NOT_NULL(graph));
+    is_dynamic = graph->is_dynamic_shape() || is_dynamic;
+  }
+  if (is_dynamic && all_graphs.size() > 1) {
+    MS_LOG(EXCEPTION) << "Dynamic shape is not supported with control flow.";
+  }
+}
+
 void SessionBasic::UpdateGraphDynamicShapeAttr(const NotNull<KernelGraphPtr> &root_graph) {
   for (const auto &cnode : root_graph->execution_order()) {
     auto output_dynamic = IsNodeOutputDynamicShape(NOT_NULL(cnode));

mindspore/ccsrc/backend/session/session_basic.h

@@ -183,6 +183,7 @@ class SessionBasic : public std::enable_shared_from_this<SessionBasic> {
   void InitInternalOutputParameter(const AnfNodePtr &out_node, const AnfNodePtr &parameter);
   AnfNodePtr FindPullNode(const AnfNodePtr &push_node, const std::vector<AnfNodePtr> &node_list);
   void UpdateGraphDynamicShapeAttr(const NotNull<KernelGraphPtr> &root_graph);
+  void UpdateAllGraphDynamicShapeAttr(const std::vector<KernelGraphPtr> &all_graphs);
 
   std::unordered_map<GraphId, std::shared_ptr<KernelGraph>> graphs_;
   std::unordered_map<GraphInfo, std::shared_ptr<KernelGraph>> run_op_graphs_;