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maenpaa
Adventurer
Adventurer
3,290 Views
Registered: ‎09-30-2014

What paths are my timing exceptions applied to?

Dear experts,

 

While making timing exceptions, I sometimes use multiple selectors (like both "-through" and "-to" in a single set_false_path constraint).

 

Is it possible to get the list of affected paths, to ensure that the selectors do not accidentally pick some that should not be excepted?

 

Motivation:
A too small selection in timing exception usually demonstrates itself through failed implementation. However, unintended false paths could go unnoticed, and cause difficult-to-debug troubles later on. I would like to cross-check that my constraints behave as intended. How to get these data?

 

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lxnjupt
Visitor
Visitor
3,265 Views
Registered: ‎04-14-2017

report_timing -through xxxx -to xxxx -name timing_review

 

Use the same -through and -to to generate a list of selected paths. You could review them in the timing reports.

maenpaa
Adventurer
Adventurer
3,259 Views
Registered: ‎09-30-2014

After setting large-enough values for -nworst and -max_paths, the data seems to come out. A bit messy to read, but at least a solution exists. Thanks!

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