Filtering Based on Properties - 2024.1 English

The object query get_* commands have a common option to filter the query based on any property value attached to the object. This is a powerful capability for the object query commands. For example, to query all cells of primitive type FD do the following:

get_cells * -hierarchical -filter “lib_cell == FD”

To do more elaborate string filtering, utilize the =~ operator to do string pattern matching. For example, to query all flip-flop types in the design, do the following:

get_cells * -hierarchical -filter “lib_cell =~ FD*”

Multiple filter properties can be combined with other property filters with logical OR (||) and AND (&&) operators to make very powerful searches. To query every cell in the design that if of any flop type and has a placed location constraint:

get_cells * -hierarchical -filter {lib_cell =~ FD* && loc != “”}