guberti commented on code in PR #12671:
URL: https://github.com/apache/tvm/pull/12671#discussion_r964826851


##########
python/tvm/relay/qnn/op/legalizations.py:
##########
@@ -433,15 +443,15 @@ def _qnn_conv2d_legalize_arm_cpu(attrs, inputs, types):
         attrs["groups"],
     )
     use_int8_on_arm = (not is_depthwise) and is_aarch64_arm() and 
attrs["data_layout"] == "NHWC"
-    if use_int8_on_arm or is_fast_int8_on_arm():
+    if use_int8_on_arm or is_fast_int8_on_arm() or is_cortexm_arm():
         return helper_change_dtypes_to_be_same(attrs, inputs, types, 
relay.qnn.op.conv2d)
     return helper_no_fast_int8_hw_legalization(attrs, inputs, types, 
relay.nn.conv2d)

Review Comment:
   Yep, that sounds good, and should make us pass the existing unit tests. I 
think we should be good to merge once the CI is green.



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