Compiled with Default Target(LLVM) and Built with USE_MRVL=ON

python/tvm/driver/tvmc/target.py

@@ -181,6 +181,12 @@ def validate_targets(parse_targets, additional_target_options=None):
     if additional_target_options is not None:
         for target_name in additional_target_options:
             if not any([target for target in parse_targets if target["name"] == target_name]):
+                # When built with USE_MRVL=ON, add-on target options are passed from MRVL codegen's
+                # config which has pass_default=True and compiled with default target, don't error
+                # Use case: --target="llvm" cnn.onnx
+                if (len(tvm_targets) == 1) and (target_name == "mrvl"):
+                    return
+
                 first_option = list(additional_target_options[target_name].keys())[0]
                 raise TVMCException(
                     f"Passed --target-{target_name}-{first_option}"

tests/python/driver/tvmc/test_target_options.py

@@ -86,6 +86,19 @@ def test_default_arg_for_mrvl_hybrid():
     assert parsed.target_mrvl_num_tiles == 8
 
 
+@tvm.testing.requires_mrvl
+# Test for default(LLVM) target, when built with USE_MRVL=ON
+def test_mrvl_build_with_llvm_only_target():
+    parser = argparse.ArgumentParser()
+    generate_target_args(parser)
+    parsed, _ = parser.parse_known_args(
+        [
+            "--target=llvm",
+        ]
+    )
+    assert parsed.target == "llvm"
+
+
 @tvm.testing.requires_cmsisnn
 def test_mapping_target_args():
     parser = argparse.ArgumentParser()