I am checking the code coverage for one of my Module's testbench, but the expression coverage is appearing as "n/a" , why is that so ? there are if-else & assignments in the RTL... how do I enable it ?

It would help if you told us what coverage scoring options you used at elaboration time.

If you used "irun -coverage ALL", or instead of "ALL" you had a string like "B:E" (E means expression) then you should expect to see coverage. That assumes you haven't passed the "-covdut" option to control which module is treated as the top level for coverage.

However if you used "irun -covfile my_coverage_file.ccf" then it really depends on what control commands are inside the my_coverage_file.ccf.

Hello Stephan,

            I am using the following options in my run command :

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////

"set compileOptionsTb            = -nocopyright -errormax 1 -linedebug \
                                  -messages \
                                  -COVERAGE all -covdut <dut-name> -covfile <naME.covfile>"

//////////////////////////////////////////////////////////////////////////////////////////////////////////////

And, my covfile is as follows :

select_coverage -all
set_expr_scoring -all
set_assign_scoring
set_libcell_scoring
set_fsm_scoring -hold_transition
set_fsm_arc_scoring -on
set_branch_scoring
set_explicit_block_scoring -off -case

set_ignore_library_name

/////////////////////////////////////////////////////////////////////////////

in spite of that, even though I have expressions in my dut, I cannot see them in the IMC.

Thanks in advance.

Regards,

Saraswati

I think it would be best if you can contact the Cadence support team via support@cadence.com or on the website  so that someone local to you can get in touch to look at this with you, either in person or by Webex.