print out set_max_delay number in report_checks

[oharboe]

Description

I have a set_max_delay -from $fifo_out_pins -to [match_pins .* output 0] 2000 statement in my .sdc file.

It would be nice if somewhere that number was listed below so that I can get confirmation that I'm doing the right thing.

$ report_checks -from fifo_out.fifomem.raddr\[0\]\$_DFF_PN0_/QN -to rdata[5]
Startpoint: fifo_out.fifomem.raddr[0]$_DFF_PN0_
            (rising edge-triggered flip-flop clocked by clk_uncore)
Endpoint: rdata[5] (output port clocked by clk_uncore)
Path Group: clk_uncore
Path Type: max

  Delay    Time   Description
---------------------------------------------------------
   0.00    0.00   clock clk_uncore (rise edge)
  83.07   83.07   clock network delay (propagated)
   0.00   83.07 ^ fifo_out.fifomem.raddr[0]$_DFF_PN0_/CLK (DFFASRHQNx1_ASAP7_75t_R)
  48.37  131.44 ^ fifo_out.fifomem.raddr[0]$_DFF_PN0_/QN (DFFASRHQNx1_ASAP7_75t_R)
  18.82  150.26 ^ rebuffer38/Y (BUFx3_ASAP7_75t_R)
  16.08  166.34 ^ max_cap59/Y (BUFx16f_ASAP7_75t_R)
  16.79  183.14 ^ max_cap58/Y (BUFx16f_ASAP7_75t_R)
  10.18  193.31 v _40892_/Y (NAND2x1_ASAP7_75t_R)
  25.52  218.84 v _40893_/Y (OA211x2_ASAP7_75t_R)
  25.28  244.11 v _40894_/Y (OR3x1_ASAP7_75t_R)
  14.83  258.95 v _40895_/Y (OA21x2_ASAP7_75t_R)
  13.10  272.05 v output49/Y (BUFx2_ASAP7_75t_R)
   0.01  272.06 v rdata[5] (out)
         272.06   data arrival time

1000.00 1000.00   clock clk_uncore (rise edge)
   0.00 1000.00   clock network delay (propagated)
 -10.00  990.00   clock uncertainty
   0.00  990.00   clock reconvergence pessimism
-800.00  190.00   output external delay
         190.00   data required time
---------------------------------------------------------
         190.00   data required time
        -272.06   data arrival time
---------------------------------------------------------
         -82.06   slack (VIOLATED)

Suggested Solution

No response

Additional Context

No response

[oharboe]

Or perhaps this is a more general problem: I want to know what I asked OpenSTA to do.... There is a big leap from constraints.sdc to 2_floorplan.sdc and 2_floorplan.sdc doesn't contain information about what OpenSTA concluded it should do based on the input constraints.sdc file.

Perhaps write_sdc could add more comments?