read_verilog dffs.v
design -save read

hierarchy -top dff
proc
equiv_opt -assert -map +/efinix/cells_sim.v synth_efinix # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd dff # Constrain all select calls below inside the top module
select -assert-count 1 t:EFX_FF
select -assert-count 1 t:EFX_GBUFCE

select -assert-none t:EFX_FF t:EFX_GBUFCE %% t:* %D

design -load read
hierarchy -top dffe
proc
equiv_opt -assert -map +/efinix/cells_sim.v synth_efinix # equivalency check
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd dffe # Constrain all select calls below inside the top module
select -assert-count 1 t:EFX_FF
select -assert-count 1 t:EFX_GBUFCE
select -assert-count 1 t:EFX_LUT4

select -assert-none t:EFX_FF t:EFX_GBUFCE t:EFX_LUT4 %% t:* %D