160 lines
5.5 KiB
Tcl
160 lines
5.5 KiB
Tcl
# Test graph delay value comparison and multi-corner graph operations.
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# Targets: DelayFloat.cc/Graph.cc/GraphCmp.cc multi-corner delay paths.
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source ../../test/helpers.tcl
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#---------------------------------------------------------------
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# Multi-corner setup for graph coverage
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#---------------------------------------------------------------
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define_corners fast slow
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read_liberty -corner fast ../../test/nangate45/Nangate45_fast.lib
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read_liberty -corner slow ../../test/nangate45/Nangate45_slow.lib
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read_verilog graph_test2.v
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link_design graph_test2
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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 {d1 d2 en}]
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set_output_delay -clock clk 1.0 [get_ports {q1 q2}]
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set_input_transition 0.1 [get_ports {d1 d2 en}]
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#---------------------------------------------------------------
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# Multi-corner timing reports (exercises delay value comparison
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# across min/max analysis points in Graph)
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#---------------------------------------------------------------
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puts "--- fast corner ---"
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report_checks -corner fast
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report_checks -corner fast -path_delay min
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report_checks -corner fast -path_delay max
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puts "--- slow corner ---"
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report_checks -corner slow
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report_checks -corner slow -path_delay min
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report_checks -corner slow -path_delay max
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#---------------------------------------------------------------
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# Multi-corner report_dcalc (exercises delay subtraction/comparison)
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#---------------------------------------------------------------
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puts "--- report_dcalc per corner ---"
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report_dcalc -corner fast -from [get_pins buf1/A] -to [get_pins buf1/Z]
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puts "fast buf1 dcalc: done"
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report_dcalc -corner slow -from [get_pins buf1/A] -to [get_pins buf1/Z]
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puts "slow buf1 dcalc: done"
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report_dcalc -corner fast -from [get_pins inv1/A] -to [get_pins inv1/ZN]
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puts "fast inv1 dcalc: done"
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report_dcalc -corner slow -from [get_pins inv1/A] -to [get_pins inv1/ZN]
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puts "slow inv1 dcalc: done"
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report_dcalc -corner fast -from [get_pins and1/A1] -to [get_pins and1/ZN]
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puts "fast and1 A1 dcalc: done"
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report_dcalc -corner slow -from [get_pins and1/A1] -to [get_pins and1/ZN]
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puts "slow and1 A1 dcalc: done"
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report_dcalc -corner fast -from [get_pins or1/A1] -to [get_pins or1/ZN]
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puts "fast or1 A1 dcalc: done"
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report_dcalc -corner slow -from [get_pins or1/A1] -to [get_pins or1/ZN]
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puts "slow or1 A1 dcalc: done"
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# DFF arcs
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report_dcalc -corner fast -from [get_pins reg1/CK] -to [get_pins reg1/Q] -max
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puts "fast reg1 CK->Q: done"
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report_dcalc -corner slow -from [get_pins reg1/CK] -to [get_pins reg1/Q] -max
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puts "slow reg1 CK->Q: done"
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report_dcalc -corner fast -from [get_pins reg1/CK] -to [get_pins reg1/D] -max
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puts "fast reg1 setup: done"
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report_dcalc -corner slow -from [get_pins reg1/CK] -to [get_pins reg1/D] -min
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puts "slow reg1 hold: done"
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#---------------------------------------------------------------
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# report_checks with fields across corners (exercises graph slew access)
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#---------------------------------------------------------------
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puts "--- report_checks with fields ---"
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report_checks -corner fast -fields {slew cap input_pins}
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report_checks -corner slow -fields {slew cap input_pins}
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report_checks -corner fast -format full_clock
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report_checks -corner slow -format full_clock
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#---------------------------------------------------------------
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# Multi-corner paths (different paths in fast vs slow)
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#---------------------------------------------------------------
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puts "--- multi-corner paths ---"
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report_checks -corner fast -from [get_ports d1] -to [get_ports q1]
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report_checks -corner slow -from [get_ports d1] -to [get_ports q1]
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report_checks -corner fast -from [get_ports d2] -to [get_ports q2]
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report_checks -corner slow -from [get_ports d2] -to [get_ports q2]
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report_checks -corner fast -from [get_ports en] -to [get_ports q1]
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report_checks -corner slow -from [get_ports en] -to [get_ports q1]
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#---------------------------------------------------------------
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# Edge queries with multi-corner
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#---------------------------------------------------------------
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puts "--- timing edges multi-corner ---"
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set e1 [get_timing_edges -of_objects [get_cells and1]]
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puts "and1 edges: [llength $e1]"
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set e2 [get_timing_edges -of_objects [get_cells or1]]
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puts "or1 edges: [llength $e2]"
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set e3 [get_timing_edges -of_objects [get_cells reg1]]
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puts "reg1 edges: [llength $e3]"
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report_edges -from [get_pins and1/A1] -to [get_pins and1/ZN]
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report_edges -from [get_pins and1/A2] -to [get_pins and1/ZN]
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report_edges -from [get_pins or1/A1] -to [get_pins or1/ZN]
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report_edges -from [get_pins or1/A2] -to [get_pins or1/ZN]
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#---------------------------------------------------------------
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# Load changes with multi-corner (exercises delay recomputation)
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#---------------------------------------------------------------
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puts "--- load changes multi-corner ---"
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set_load 0.01 [get_ports q1]
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set_load 0.05 [get_ports q2]
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report_checks -corner fast
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report_checks -corner slow
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set_load 0 [get_ports q1]
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set_load 0 [get_ports q2]
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#---------------------------------------------------------------
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# report_checks -unconstrained multi-corner
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#---------------------------------------------------------------
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puts "--- unconstrained multi-corner ---"
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report_checks -corner fast -unconstrained
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report_checks -corner slow -unconstrained
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#---------------------------------------------------------------
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# Disable/enable with multi-corner
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#---------------------------------------------------------------
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puts "--- disable with multi-corner ---"
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set_disable_timing [get_cells buf1]
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report_checks -corner fast
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report_checks -corner slow
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unset_disable_timing [get_cells buf1]
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report_checks -corner fast
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report_checks -corner slow
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