[Test] add expected cycle check to StreamingMaxPool rtlsim test

tests/fpgadataflow/test_layer_streaming_maxpool_batch.py

@@ -41,6 +41,9 @@ from finn.transformation.fpgadataflow.set_exec_mode import SetExecMode
 from finn.transformation.fpgadataflow.prepare_rtlsim import PrepareRTLSim
 from finn.transformation.general import GiveUniqueNodeNames
 from finn.util.basic import gen_finn_dt_tensor
+from finn.analysis.fpgadataflow.exp_cycles_per_layer import exp_cycles_per_layer
+from finn.custom_op.registry import getCustomOp
+import numpy as np
 
 
 def make_single_maxpoolnhwc_modelwrapper(k, ifm_ch, ifm_dim, ofm_dim, idt):
@@ -154,3 +157,12 @@ def test_fpgadataflow_streamingmaxpool(idt, k, ifm_dim, ifm_ch, exec_mode):
     # execute model
     y_produced = oxe.execute_onnx(model, input_dict)["outp"]
     assert (y_produced == y_expected).all()
+
+    if exec_mode == "rtlsim":
+        node = model.get_nodes_by_op_type("StreamingMaxPool_Batch")[0]
+        inst = getCustomOp(node)
+        sim_cycles = inst.get_nodeattr("sim_cycles")
+        exp_cycles_dict = model.analysis(exp_cycles_per_layer)
+        exp_cycles = exp_cycles_dict[str(node)]
+        assert np.isclose(exp_cycles, sim_cycles, atol=15)
+        assert exp_cycles != 0