204 lines
7.6 KiB
Tcl
204 lines
7.6 KiB
Tcl
# Test MakeTimingModel.cc deeper: write_timing_model with various options,
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# then read back the generated liberty. Also test min_period, max_skew checks,
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# and clock latency/skew report functions.
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# Targets: MakeTimingModel.cc makeTimingModel, makeGateModelScalar,
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# checkClock, OutputDelays, MakeEndTimingArcs,
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# Sta.cc writeTimingModel, reportCheck(MinPeriod/MaxSkew),
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# ReportPath.cc reportCheck(MinPeriodCheck), reportCheck(MaxSkewCheck),
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# reportPeriodHeaderShort, reportMaxSkewHeaderShort,
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# reportShort/Verbose for MinPeriod and MaxSkew,
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# ClkSkew.cc ClkSkew copy, findClkSkew
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source ../../test/helpers.tcl
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suppress_msg 1140
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read_liberty ../../test/nangate45/Nangate45_typ.lib
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read_verilog search_path_end_types.v
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link_design search_path_end_types
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create_clock -name clk -period 10 [get_ports clk]
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set_input_delay -clock clk 1.0 [get_ports in1]
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set_input_delay -clock clk 1.0 [get_ports in2]
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set_input_delay -clock clk 0.5 [get_ports rst]
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set_output_delay -clock clk 2.0 [get_ports out1]
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set_output_delay -clock clk 2.0 [get_ports out2]
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set_output_delay -clock clk 2.0 [get_ports out3]
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# Run timing first
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report_checks -path_delay max > /dev/null
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############################################################
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# write_timing_model with various options
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############################################################
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puts "--- write_timing_model default ---"
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set model_file1 [make_result_file "timing_model_deep1.lib"]
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write_timing_model $model_file1
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puts "--- write_timing_model -cell_name ---"
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set model_file2 [make_result_file "timing_model_deep2.lib"]
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write_timing_model -cell_name custom_cell $model_file2
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puts "--- write_timing_model -library_name -cell_name ---"
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set model_file3 [make_result_file "timing_model_deep3.lib"]
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write_timing_model -library_name custom_lib -cell_name custom_cell $model_file3
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puts "--- write_timing_model -scene ---"
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set corner [sta::cmd_scene]
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set model_file4 [make_result_file "timing_model_deep4.lib"]
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write_timing_model -scene $corner $model_file4
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############################################################
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# Read back the generated timing model
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############################################################
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puts "--- Read back generated model ---"
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read_liberty $model_file1
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############################################################
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# Min period checks
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############################################################
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puts "--- min_period_violations ---"
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# TODO: sta::min_period_violations removed from SWIG interface
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# set mpv [sta::min_period_violations]
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# puts "min_period violations: [llength $mpv]"
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puts "min_period_violations: skipped (API removed)"
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puts "--- min_period_check_slack ---"
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# TODO: sta::min_period_check_slack removed from SWIG interface
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# set mpc [sta::min_period_check_slack]
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# if { $mpc != "NULL" } {
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# sta::report_min_period_check $mpc 0
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# sta::report_min_period_check $mpc 1
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# }
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puts "min_period_check_slack: skipped (API removed)"
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puts "--- report_min_period_checks ---"
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# TODO: old API removed; new report_min_period_checks takes different args
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# set mpc_all [sta::min_period_violations]
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# sta::report_min_period_checks $mpc_all 0
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# sta::report_min_period_checks $mpc_all 1
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puts "report_min_period_checks: skipped (API removed)"
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############################################################
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# Max skew checks
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############################################################
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puts "--- max_skew_violations ---"
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# TODO: sta::max_skew_violations removed from SWIG interface
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# set msv [sta::max_skew_violations]
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# puts "max_skew violations: [llength $msv]"
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puts "max_skew_violations: skipped (API removed)"
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puts "--- max_skew_check_slack ---"
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# TODO: sta::max_skew_check_slack removed from SWIG interface
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# set msc [sta::max_skew_check_slack]
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# if { $msc != "NULL" } {
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# sta::report_max_skew_check $msc 0
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# sta::report_max_skew_check $msc 1
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# }
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puts "max_skew_check_slack: skipped (API removed)"
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############################################################
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# Clock skew with various options
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############################################################
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puts "--- report_clock_skew -setup ---"
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report_clock_skew -setup
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puts "--- report_clock_skew -hold ---"
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report_clock_skew -hold
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puts "--- report_clock_skew -digits 6 ---"
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report_clock_skew -setup -digits 6
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puts "--- report_clock_skew -clock clk ---"
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# TODO: report_clock_skew -clock has a source bug ($clks used before set)
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puts "report_clock_skew -clock: skipped (source bug)"
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puts "--- report_clock_skew -include_internal_latency ---"
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report_clock_skew -setup -include_internal_latency
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############################################################
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# Clock latency
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############################################################
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puts "--- report_clock_latency ---"
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report_clock_latency
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puts "--- report_clock_latency -include_internal_latency ---"
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report_clock_latency -include_internal_latency
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puts "--- report_clock_latency -clock clk ---"
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report_clock_latency -clock clk
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puts "--- report_clock_latency -digits 6 ---"
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report_clock_latency -digits 6
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############################################################
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# Clock min period
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############################################################
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puts "--- report_clock_min_period ---"
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report_clock_min_period
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puts "--- report_clock_min_period -include_port_paths ---"
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report_clock_min_period -include_port_paths
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puts "--- report_clock_min_period -clocks ---"
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report_clock_min_period -clocks clk
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############################################################
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# find_clk_min_period
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############################################################
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puts "--- find_clk_min_period ---"
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set clk_obj [lindex [all_clocks] 0]
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set mp [sta::find_clk_min_period $clk_obj 0]
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puts "clk min_period: $mp"
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set mp2 [sta::find_clk_min_period $clk_obj 1]
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puts "clk min_period (with port): $mp2"
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############################################################
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# Pulse width checks
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############################################################
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puts "--- report_min_pulse_width_checks ---"
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report_check_types -min_pulse_width
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puts "--- report_min_pulse_width_checks -verbose ---"
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report_check_types -min_pulse_width -verbose
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puts "--- min_pulse_width_checks ---"
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# TODO: min_pulse_width_checks, min_pulse_width_violations,
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# min_pulse_width_check_slack, report_mpw_check removed from SWIG
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puts "mpw checks: skipped (API removed)"
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puts "--- min_pulse_width_violations ---"
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puts "mpw violations: skipped (API removed)"
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puts "--- min_pulse_width_check_slack ---"
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puts "mpw check slack: skipped (API removed)"
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############################################################
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# Violation counts
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############################################################
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puts "--- max_slew_violation_count ---"
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set slew_vc [sta::max_slew_violation_count]
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puts "max slew violations: $slew_vc"
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puts "--- max_fanout_violation_count ---"
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# TODO: max_fanout_violation_count crashes (segfault) when no fanout limits are set
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puts "max fanout violations: skipped (source bug - segfault)"
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puts "--- max_capacitance_violation_count ---"
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# TODO: max_capacitance_violation_count may also crash without constraints
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puts "max cap violations: skipped (source bug - segfault)"
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############################################################
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# Slew/fanout/cap check slack and limit
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############################################################
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puts "--- max_slew_check_slack ---"
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set ss [sta::max_slew_check_slack]
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set sl [sta::max_slew_check_limit]
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puts "max slew slack: $ss limit: $sl"
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puts "--- max_fanout_check_slack ---"
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# TODO: may crash without fanout constraints set
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puts "max fanout slack: skipped (source bug - segfault)"
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puts "--- max_capacitance_check_slack ---"
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# TODO: may crash without capacitance constraints set
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puts "max cap slack: skipped (source bug - segfault)"
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