[compile] Recompile graph module during Dynamo cache loading. (#30743)

Signed-off-by: Zhengxu Chen <zhxchen17@fb.com>

vllm/compilation/caching.py

@@ -104,6 +104,7 @@ class VllmSerializableFunction(SerializableCallable):
         state = pickle.loads(data)
         fake_mode = FakeTensorMode(shape_env=ShapeEnv())
         state["graph_module"] = GraphPickler.loads(state["graph_module"], fake_mode)
+        state["graph_module"].recompile()
         state["example_inputs"] = GraphPickler.loads(state["example_inputs"], fake_mode)
         vllm_backend = VllmBackend(get_current_vllm_config(), state["prefix"])