156 lines
5.1 KiB
Tcl
156 lines
5.1 KiB
Tcl
# Test pi_pole_residue parasitic model creation and query.
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source ../../test/helpers.tcl
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# Read ASAP7 libraries
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read_liberty ../../test/asap7/asap7sc7p5t_SEQ_RVT_FF_nldm_220123.lib
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read_liberty ../../test/asap7/asap7sc7p5t_INVBUF_RVT_FF_nldm_220122.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_SIMPLE_RVT_FF_nldm_211120.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_OA_RVT_FF_nldm_211120.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_AO_RVT_FF_nldm_211120.lib.gz
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read_verilog ../../test/reg1_asap7.v
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link_design top
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create_clock -name clk -period 500 {clk1 clk2 clk3}
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set_input_delay -clock clk 1 {in1 in2}
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set_output_delay -clock clk 1 [get_ports out]
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set_input_transition 10 {in1 in2 clk1 clk2 clk3}
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set_propagated_clock {clk1 clk2 clk3}
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#---------------------------------------------------------------
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# Test 1: Read SPEF to create parasitic networks, then reduce
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# to pi_pole_residue via dmp_ceff_two_pole delay calculator
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# Exercises: ReduceParasitics.cc reduceToPiPoleResidue path
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#---------------------------------------------------------------
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puts "--- Test 1: SPEF with dmp_ceff_two_pole reduction ---"
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read_spef ../../test/reg1_asap7.spef
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set_delay_calculator dmp_ceff_two_pole
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report_checks
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report_checks -path_delay min
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report_checks -from [get_ports in1] -to [get_ports out]
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report_checks -from [get_ports in2] -to [get_ports out]
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report_checks -fields {slew cap input_pins net fanout}
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#---------------------------------------------------------------
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# Test 3: Delay calc reports with two-pole model
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# Exercises: parasitic access through dcalc for pole/residue
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#---------------------------------------------------------------
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puts "--- Test 3: dcalc with two-pole ---"
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report_dcalc -from [get_pins u1/A] -to [get_pins u1/Y] -max
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puts "dcalc u1 A->Y max: done"
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report_dcalc -from [get_pins u1/A] -to [get_pins u1/Y] -min
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puts "dcalc u1 A->Y min: done"
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report_dcalc -from [get_pins u2/A] -to [get_pins u2/Y] -max
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puts "dcalc u2 A->Y max: done"
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report_dcalc -from [get_pins u2/B] -to [get_pins u2/Y] -max
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puts "dcalc u2 B->Y max: done"
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report_dcalc -from [get_pins r1/CLK] -to [get_pins r1/Q] -max
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puts "dcalc r1 CLK->Q max: done"
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report_dcalc -from [get_pins r2/CLK] -to [get_pins r2/Q] -max
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puts "dcalc r2 CLK->Q max: done"
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report_dcalc -from [get_pins r3/CLK] -to [get_pins r3/Q] -max
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puts "dcalc r3 CLK->Q max: done"
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#---------------------------------------------------------------
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# Test 4: Switch between delay calculators to exercise
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# different parasitic reduction branches
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#---------------------------------------------------------------
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puts "--- Test 4: switch delay calculators ---"
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# Arnoldi uses different reduction paths
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set_delay_calculator arnoldi
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report_checks
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# Query arnoldi-reduced values
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report_dcalc -from [get_pins u1/A] -to [get_pins u1/Y] -max
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puts "arnoldi dcalc u1: done"
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report_dcalc -from [get_pins u2/A] -to [get_pins u2/Y] -max
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puts "arnoldi dcalc u2: done"
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# Switch back to dmp_ceff_elmore (exercises deleteReducedParasitics)
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set_delay_calculator dmp_ceff_elmore
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report_checks
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# Switch to two-pole again (re-reduces)
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set_delay_calculator dmp_ceff_two_pole
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report_checks
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# Lumped cap
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set_delay_calculator lumped_cap
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report_checks
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#---------------------------------------------------------------
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# Test 5: SPEF with coupling caps and two-pole reduction
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# Exercises: coupling cap handling in pole/residue model
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#---------------------------------------------------------------
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puts "--- Test 5: coupling + two-pole ---"
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set_delay_calculator dmp_ceff_two_pole
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read_spef -keep_capacitive_coupling parasitics_coupling_spef.spef
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report_checks
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report_checks -path_delay min
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report_checks -fields {slew cap}
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# Elmore with coupling (exercises reduction from coupling network)
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set_delay_calculator dmp_ceff_elmore
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report_checks
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#---------------------------------------------------------------
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# Test 6: Re-read SPEF to exercise cleanup
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#---------------------------------------------------------------
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puts "--- Test 6: re-read SPEF ---"
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set_delay_calculator dmp_ceff_two_pole
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read_spef ../../test/reg1_asap7.spef
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report_checks
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# Net reports with different calculators
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foreach net_name {r1q r2q u1z u2z out} {
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report_net -digits 4 $net_name
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puts "report_net $net_name: done"
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}
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#---------------------------------------------------------------
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# Test 7: Parasitic annotation
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#---------------------------------------------------------------
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puts "--- Test 7: annotation ---"
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report_parasitic_annotation
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report_parasitic_annotation -report_unannotated
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#---------------------------------------------------------------
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# Test 8: Manual pi model then query isPiElmore vs isPiPoleResidue
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# Exercises: the type-checking branches in ConcreteParasitics
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#---------------------------------------------------------------
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puts "--- Test 8: manual pi + elmore then query ---"
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set msg [sta::set_pi_model u1/Y 0.005 10.0 0.003]
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puts "set_pi_model u1/Y: $msg"
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set msg [sta::set_elmore u1/Y u2/B 0.005]
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puts "set_elmore u1/Y->u2/B: $msg"
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# Run timing with different calculators to force re-reduction
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set_delay_calculator dmp_ceff_elmore
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report_checks
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set_delay_calculator dmp_ceff_two_pole
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report_checks
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set_delay_calculator lumped_cap
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report_checks
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