!14623 Add IsDynamic func to BaseShape && PyNative perf opt

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

mindspore/ccsrc/pipeline/pynative/pynative_execute.cc

@@ -850,8 +850,8 @@ void ForwardExecutor::GetOpOutputAbstract(const OpExecInfoPtr &op_exec_info,
   MS_EXCEPTION_IF_NULL(abstract);
   auto shape = abstract->BuildShape();
   MS_EXCEPTION_IF_NULL(shape);
-  auto shape_info = shape->ToString();
-  if (shape_info.find("-1") != string::npos) {
+
+  if (shape->IsDynamic()) {
     op_exec_info->is_dynamic_shape = true;
   }
 }

mindspore/core/abstract/dshape.h

@@ -46,6 +46,7 @@ class BaseShape : public Base {
   virtual bool operator==(const BaseShape &other) const;
   bool operator!=(const BaseShape &other) const;
   std::size_t hash() const override { return tid(); }
+  virtual bool IsDynamic() const = 0;
 
   // return a deep copy
   virtual BaseShapePtr Clone() const = 0;
@@ -57,6 +58,7 @@ class NoShape : public BaseShape {
   MS_DECLARE_PARENT(NoShape, BaseShape)
   BaseShapePtr Clone() const override { return std::make_shared<NoShape>(); }
   std::string ToString() const override { return type_name(); }
+  bool IsDynamic() const override { return false; }
 };
 extern const std::shared_ptr<NoShape> kNoShape;
 
@@ -78,10 +80,13 @@ class Shape : public BaseShape {
   ShapeVector &shape() { return shape_; }
   ShapeVector &min_shape() { return min_shape_; }
   ShapeVector &max_shape() { return max_shape_; }
+  bool IsDynamic() const override {
+    return std::any_of(shape_.begin(), shape_.end(), [](int64_t s) { return s < 0; });
+  }
 
   ShapeVector shape_;      // use SHP_ANY to implement the any shape in python
-  ShapeVector min_shape_;  // record mininum length for each dynamic dimention
-  ShapeVector max_shape_;  // record maximum length for each dynamic dimention
+  ShapeVector min_shape_;  // record minimum length for each dynamic dimension
+  ShapeVector max_shape_;  // record maximum length for each dynamic dimension
 };
 using ShapePtr = std::shared_ptr<Shape>;
 using ShapePtrList = std::vector<ShapePtr>;
@@ -102,6 +107,9 @@ class SequeueShape : public BaseShape {
   const BaseShapePtrList &shape() const { return p_shapes_; }
   size_t size() const { return p_shapes_.size(); }
   const BaseShapePtr operator[](std::size_t dim) const { return p_shapes_[dim]; }
+  bool IsDynamic() const override {
+    return std::any_of(p_shapes_.begin(), p_shapes_.end(), [](const BaseShapePtr &bs) { return bs->IsDynamic(); });
+  }
 
  protected:
   BaseShapePtrList p_shapes_;  // shape list of each elements