check_timing

Flag ideal clocks in a design:
lappend timing_check_defaults ideal_clocks
check_timing

All subsequently created clocks are propagated by default.
set timing_all_clocks_propagated true
set_propagated_clock [all_clocks]

get_attribute [get_pins  PIN_NAME] clocks
get_attribute [get_pins  PIN_NAME] case_value/constant_value

list_attributes [get_cells CELL_NAME ] -application class 
report_attributes [get_cells  CELL_NAME] -application class

all_fanin -to -flat -trace_arcs all