How to get the preprocessor output from irun?

Hi.

The irun svpp mode was deprecated several years ago. It was only ever a stop-gap to handle certain SV constructs that the Incisive parser didn't support at the time.

If you move to Incisive version 15.20, you won't need svpp. Better still, talk to your local Cadence team about upgrading to Xcelium, which replaced Incisive at the start of 2017, it has very good SV support.

Thank you！ So I guess Xcelium will support preprocessor output, right?

There is no pre-processor now, all the parsing is done natively. Why do you think you need access to a preprocessor? What are you trying to do?

well, sometimes there're macros which are really complicated, so I think a pre-processor could help to debug in such scenario.

You can use the "-parseinfo macro" option to irun/xrun.

By default, -parseinfo macro applies globally, affecting all instances in the design. Optionally, you can limit the report by specifying a list of one or more module names.

The macro argument provides the following information on these macro instances:

-- The source code where the macro was used.

-- The macro definition used to expand the macro instance.

I hope this helps.

Great! Thank you!

Ah, for macros, try adding "-parseinfo macro" to see all the macros expanded in the log.