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Filter paths

AB5001

hi folks,

In my design there are  4000 flops. I need to sort them on the basis of endpoint slack value.

I wrote this script in encounter: 

set paths [report_timing -collection -from [all_registers -clock_pins] -to [all_register -data_pins] -max_points 10000 -nworst 1] 

set sorted_paths [sort_collection $paths slack]

This is sorting the paths but all instances are coming twice because of the pins SI and D. I need only one of the pin slack which ever is critical slack.

How can i filter my collection so that i get each flop only once.? 

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