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Author	SHA1	Message	Date
Jannis Harder	a5e1d3b997	formalff: Set new replaced_by_gclk attribute on removed dff's clks This attribute can be used by formal backends to indicate which clocks were mapped to the global clock. Update the btor and smt2 backend which already handle clock inputs to understand this attribute.	2022-08-16 13:37:30 +02:00
Jannis Harder	c0063288d6	Add the $anyinit cell and the formalff pass These can be used to protect undefined flip-flop initialization values from optimizations that are not sound for formal verification and can help mapping all solver-provided values in witness traces for flows that use different backends simultaneously.	2022-08-16 13:37:30 +02:00

Author

SHA1

Message

Date

Jannis Harder

a5e1d3b997

formalff: Set new replaced_by_gclk attribute on removed dff's clks

This attribute can be used by formal backends to indicate which clocks
were mapped to the global clock. Update the btor and smt2 backend which
already handle clock inputs to understand this attribute.

2022-08-16 13:37:30 +02:00

Jannis Harder

c0063288d6

Add the $anyinit cell and the formalff pass

These can be used to protect undefined flip-flop initialization values
from optimizations that are not sound for formal verification and can
help mapping all solver-provided values in witness traces for flows that
use different backends simultaneously.

2022-08-16 13:37:30 +02:00

2 commits