138 lines
5.9 KiB
Tcl
138 lines
5.9 KiB
Tcl
# Test exception paths with through nets and instances,
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# multi-object from/to, group_path default, and write_sdc
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# exercises exception writing with nets/instances.
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# Targets:
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# ExceptionPath.cc: ExceptionPath constructor, fromThruToPriority,
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# firstPt, matchesFirstPt, asString, typeString,
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# ExceptionFrom/To/Thru with instances/nets/clks combinations,
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# ExceptionPathLess comparison, checkFromThrusTo,
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# setPriority, setId
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# Sdc.cc: makeFalsePath, makeMulticyclePath, makePathDelay,
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# makeGroupPath (default), resetPath, makeExceptionFrom/Thru/To,
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# deleteExceptionFrom/Thru/To, checkExceptionFromPins/ToPins,
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# isPathGroupName
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# WriteSdc.cc: writeException, writeExceptionCmd (all types),
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# writeExceptionFrom/To/Thru with multi-objects,
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# writeExceptionValue (multicycle multiplier, delay value),
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# writeGroupPath (default and named),
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# mapThruHpins
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source ../../test/helpers.tcl
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read_liberty ../../test/nangate45/Nangate45_typ.lib
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read_verilog sdc_test2.v
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link_design sdc_test2
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create_clock -name clk1 -period 10 [get_ports clk1]
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create_clock -name clk2 -period 20 [get_ports clk2]
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set_input_delay -clock clk1 2.0 [get_ports in1]
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set_input_delay -clock clk1 2.0 [get_ports in2]
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set_input_delay -clock clk2 2.0 [get_ports in3]
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set_output_delay -clock clk1 3.0 [get_ports out1]
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set_output_delay -clock clk2 3.0 [get_ports out2]
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############################################################
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# False path with through nets
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############################################################
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set_false_path -through [get_nets n1] -to [get_ports out1]
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set_false_path -from [get_ports in2] -through [get_nets n2] -to [get_ports out1]
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# False path through net and pin combined
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set_false_path -from [get_ports in1] -through [get_nets n3] -through [get_pins nand1/ZN] -to [get_ports out1]
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############################################################
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# False path with through instances
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############################################################
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set_false_path -from [get_ports in1] -through [get_cells buf1] -to [get_ports out2]
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############################################################
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# False path with from instances
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############################################################
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set_false_path -from [get_cells reg1] -to [get_ports out2]
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############################################################
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# False path with to instances
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############################################################
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set_false_path -from [get_ports in1] -to [get_cells reg2]
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############################################################
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# Multi-object from/to
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############################################################
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set_false_path -from [list [get_ports in1] [get_ports in2]] \
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-to [list [get_ports out1] [get_ports out2]]
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# Multi-object with clocks
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set_false_path -setup -from [list [get_clocks clk1] [get_ports in3]] \
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-to [get_ports out1]
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############################################################
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# Write to verify exception writing
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############################################################
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set sdc1 [make_result_file sdc_exception_thru1.sdc]
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write_sdc -no_timestamp $sdc1
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diff_files sdc_exception_thru1.sdcok $sdc1
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############################################################
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# Unset all false paths and create new ones
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############################################################
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unset_path_exceptions -through [get_nets n1] -to [get_ports out1]
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unset_path_exceptions -from [get_ports in2] -through [get_nets n2] -to [get_ports out1]
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unset_path_exceptions -from [get_ports in1] -through [get_nets n3] -through [get_pins nand1/ZN] -to [get_ports out1]
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unset_path_exceptions -from [get_ports in1] -through [get_cells buf1] -to [get_ports out2]
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unset_path_exceptions -from [get_cells reg1] -to [get_ports out2]
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unset_path_exceptions -from [get_ports in1] -to [get_cells reg2]
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############################################################
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# Max/min delay with -ignore_clock_latency
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############################################################
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set_max_delay -from [get_ports in1] -to [get_ports out1] -ignore_clock_latency 8.0
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set_min_delay -from [get_ports in1] -to [get_ports out1] 1.0
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# Max delay with through net
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set_max_delay -from [get_ports in2] -through [get_nets n2] -to [get_ports out1] 6.0
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# Max delay with through instance
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set_max_delay -from [get_ports in3] -through [get_cells or1] -to [get_ports out2] 7.0
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############################################################
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# Multicycle path with -start/-end
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############################################################
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set_multicycle_path -setup -start 3 -from [get_ports in1] -to [get_ports out1]
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set_multicycle_path -hold -end 1 -from [get_ports in1] -to [get_ports out1]
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############################################################
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# Group path - default
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############################################################
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group_path -default -from [get_ports in1] -to [get_ports out1]
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# Named group path with through
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group_path -name grp_thru -from [get_ports in2] -through [get_pins and1/ZN] -to [get_ports out1]
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############################################################
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# Write with all exception types
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############################################################
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set sdc2 [make_result_file sdc_exception_thru2.sdc]
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write_sdc -no_timestamp $sdc2
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diff_files sdc_exception_thru2.sdcok $sdc2
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set sdc3 [make_result_file sdc_exception_thru3.sdc]
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write_sdc -no_timestamp -compatible $sdc3
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diff_files sdc_exception_thru3.sdcok $sdc3
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############################################################
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# Group path names query
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############################################################
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set gp_names [sta::group_path_names]
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puts "group_path_names = $gp_names"
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############################################################
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# is_path_group_name
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############################################################
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set is_gp [sta::is_path_group_name "grp_thru"]
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puts "is_path_group_name grp_thru = $is_gp"
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set is_gp [sta::is_path_group_name "nonexistent"]
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puts "is_path_group_name nonexistent = $is_gp"
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