!8317 Bugfix in GraphKernel after all integer ValueNodes are changed to int64

From: @dayschan
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

mindspore/ccsrc/backend/kernel_compiler/akg/akg_kernel_json_decoder.cc

@@ -75,7 +75,7 @@ class CNodeDecoder {
       std::string value = attr_json[kJsonKeyValue];
       return MakeValue(value);
     } else if (type == "int") {
-      int value = attr_json[kJsonKeyValue];
+      int64_t value = attr_json[kJsonKeyValue];
       return MakeValue(value);
     } else if (type == "bool") {
       bool value = attr_json[kJsonKeyValue];
@@ -84,7 +84,7 @@ class CNodeDecoder {
       float value = attr_json[kJsonKeyValue];
       return MakeValue(value);
     } else if (type == "listInt") {
-      std::vector<int> value = attr_json[kJsonKeyValue];
+      std::vector<int64_t> value = attr_json[kJsonKeyValue];
       return MakeValue(value);
     } else if (type == "listStr") {
       std::vector<std::string> value = attr_json[kJsonKeyValue];

mindspore/ccsrc/backend/optimizer/graph_kernel/graph_kernel_helper.cc

@@ -513,8 +513,8 @@ void ReplaceNewFuseCNode(const FuncGraphPtr &func_graph, const AnfNodePtr &new_f
       MS_EXCEPTION_IF_NULL(value_input);
       auto value_node = value_input->cast<ValueNodePtr>();
       MS_EXCEPTION_IF_NULL(value_node);
-      int item_idx = GetValue<int>(value_node->value());
-      int new_item_idx = SizeToLong(out_idx) + offset + item_idx;
+      auto item_idx = GetValue<int64_t>(value_node->value());
+      int64_t new_item_idx = SizeToLong(out_idx) + offset + item_idx;
       fn_inputs.clear();
       fn_inputs.push_back(NewValueNode(prim::kPrimTupleGetItem));
       fn_inputs.push_back(new_fuse_cnode);

mindspore/ccsrc/backend/optimizer/graph_kernel/graph_kernel_splitter.cc

@@ -272,7 +272,7 @@ class AreaGraph {
       size_t input_area = node_area_map_[input_node];
       // if the input node is in a tuple, then we need to create a GetItem fot it.
       if (node_index_in_returned_tuple_.count(input_node) != 0) {
-        int idx_val = SizeToLong(node_index_in_returned_tuple_[input_node]);
+        auto idx_val = SizeToLong(node_index_in_returned_tuple_[input_node]);
         auto idx = NewValueNode(idx_val);
         idx->set_abstract(std::make_shared<abstract::AbstractScalar>(idx_val));
         AnfNodePtrList getitem_inputs = {NewValueNode(prim::kPrimTupleGetItem), main_cnodes[input_area], idx};