add register of is_empty (#51484)

* Update interpreter_util.cc

* Update is_empty_kernel.cc

* Update is_empty_kernel.cc

paddle/fluid/framework/new_executor/interpreter/interpreter_util.cc

@@ -73,7 +73,6 @@ static std::set<std::string> OpsNeedSetOutputDtypeWhenRegisterPhiKernel = {
     "group_norm",
     "histogram",
     "instance_norm",
-    "is_empty",
     "kthvalue",
     "lamb",
     "layer_norm",

paddle/phi/kernels/is_empty_kernel.cc

@@ -39,7 +39,9 @@ PD_REGISTER_KERNEL(is_empty,
                    float,
                    double,
                    int,
-                   int64_t) {}
+                   int64_t) {
+  kernel->OutputAt(0).SetDataType(phi::DataType::BOOL);
+}
 
 #if defined(PADDLE_WITH_CUDA) || defined(PADDLE_WITH_HIP)
 PD_REGISTER_KERNEL(is_empty,