[Infrt] skip grad kernel in infrt frame (#41315)

* code

* code

tools/infrt/get_compat_kernel_signature.py

@@ -19,6 +19,13 @@ import json
 skip_list = ["adam_sig.cc", "adamw_sig.cc"]
 
 
+def is_grad_kernel(kernel_info):
+    kernel_name = kernel_info.split(",")[0]
+    if kernel_name.endswith("_grad"):
+        return True
+    return False
+
+
 def parse_compat_registry(kernel_info):
     name, inputs_str, attrs_str, outputs_str = kernel_info.split(",{")
     kernel_info = {}
@@ -62,6 +69,8 @@ def get_compat_kernels_info():
                         "").strip("return").strip("KernelSignature(").strip(
                             "\);").replace("\"", "").replace("\\", "")
                     registry = False
+                    if is_grad_kernel(data):
+                        continue
                     name, registry_info = parse_compat_registry(data)
 
                     if name in kernels_info: