diff --git a/paddle/fluid/ir_adaptor/translator/op_compat_info.h b/paddle/fluid/ir_adaptor/translator/op_compat_info.h
index b07e31c8a13eed56ef765ce7c84464b21a6e3eb1..1bb2f4d8131b4af00c27c3e8b74f2b7ea4c8bdc3 100644
--- a/paddle/fluid/ir_adaptor/translator/op_compat_info.h
+++ b/paddle/fluid/ir_adaptor/translator/op_compat_info.h
@@ -28,6 +28,9 @@ namespace translator {
 
 using MutableAttributeInfo = std::vector<std::string>;
 
+static constexpr char kPhiGradSuffix[] = "_grad";
+static constexpr char kFluidVarGradSuffix[] = "@GRAD";
+
 class OpNameNormalizer {
  private:
   OpNameNormalizer();  // Disallow instantiation outside of the class.
@@ -76,11 +79,11 @@ class OpNameNormalizer {
 
   std::string GetLegacyArgName(const std::string& op_type,
                                const std::string& arg_name) {
-    bool is_grad_op = (op_type.find("grad") != std::string::npos);
-    bool is_grad_arg = (arg_name.find("grad") != std::string::npos);
+    bool is_grad_op = (op_type.find(kPhiGradSuffix) != std::string::npos);
+    bool is_grad_arg = (arg_name.find(kPhiGradSuffix) != std::string::npos);
     if (is_grad_op && is_grad_arg) {
-      std::string target = "_grad";
-      std::string data = "@GRAD";
+      std::string target = kPhiGradSuffix;
+      std::string data = kFluidVarGradSuffix;
 
       size_t first_grad_pos = arg_name.find(target);
       size_t type_pos = op_type.find(target);
@@ -95,9 +98,7 @@ class OpNameNormalizer {
       return legacy_name;
     } else if (is_grad_op && !is_grad_arg) {
       // backwward op using forward args: like trace_grad using forward input
-      std::string target = "_grad";
-
-      size_t type_pos = op_type.find(target);
+      size_t type_pos = op_type.find(kPhiGradSuffix);
       std::string legacy_name =
           this->GetLegacyArgName(op_type.substr(0, type_pos), arg_name);
 
diff --git a/paddle/phi/api/yaml/op_compat.yaml b/paddle/phi/api/yaml/op_compat.yaml
index 8e8cca4296e7d05e79f4837886eb63fde45b0e78..109fc6946ce2c61a18311a307ebad0fe08eccccf 100755
--- a/paddle/phi/api/yaml/op_compat.yaml
+++ b/paddle/phi/api/yaml/op_compat.yaml
@@ -2835,6 +2835,12 @@
   outputs :
     {warpctcgrad : WarpCTCGrad, loss : Loss}
 
+- op : warprnnt
+  inputs :
+    {input : input, label : label,  input_lengths : input_lengths, label_lengths : label_lengths}
+  outputs :
+    {loss : loss, warprnntgrad : warprnntgrad}
+
 - op : where
   backward : where_grad
   inputs :
diff --git a/test/white_list/new_ir_op_test_white_list b/test/white_list/new_ir_op_test_white_list
index 0c61420afc90f1580c8817b5e732a99959d45579..4504eaae470616dd7dcbb7906184d65149cb8e50 100644
--- a/test/white_list/new_ir_op_test_white_list
+++ b/test/white_list/new_ir_op_test_white_list
@@ -57,3 +57,4 @@ test_triangular_solve_op
 test_trunc_op
 test_unfold_op
 test_unpool3d_op
+test_warprnnt_op