Support for multiple instances?

Ok I have the test case ready.

Please find below 3 possible situations:

A: The blocks have the same name, the same functionality and the same interface,

Quartus issues a warning and proceed, the synthesis will be correct.

Picture: duplicated_ignored_warning_when_io_and_functionality_is_matching.png

B: The blocks have the same name with the same interface but different functionality,

Quartus issues a warning and proceed, the synthesis will be Incorrect.

C: The blocks have the same name but different functionality and different interface,

Quartus issues an error.

Picture named duplicated_ignored_error_when_blocks_have_different_function.png