142 lines
4.7 KiB
Tcl
142 lines
4.7 KiB
Tcl
# Test network modify operations using liberty cell references
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# Targets: ConcreteNetwork.cc uncovered functions:
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# - connect(Instance, LibertyPort, Net) - line 1367 hit=0
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# - mergeInto(Net, Net) - line 1203 hit=0
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# - addConstantNet - line 1541 hit=0
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# - clearConstantNets - line 1534 hit=0
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# - clear - line 273 hit=0
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# Also tests: Network.cc (findInstancesMatching, findNetsMatchingLinear,
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# findPinsMatching, leafInstanceIterator(inst), etc.)
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read_liberty ../../test/nangate45/Nangate45_typ.lib
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read_verilog network_test1.v
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link_design network_test1
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create_clock -name clk -period 10 [get_ports clk]
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set_input_delay -clock clk 0 [get_ports in1]
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set_input_delay -clock clk 0 [get_ports in2]
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set_output_delay -clock clk 0 [get_ports out1]
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# Force timing graph to build
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report_checks
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#---------------------------------------------------------------
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# Make instance using liberty cell reference
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#---------------------------------------------------------------
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puts "--- make_instance using liberty cell ---"
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set new_inst [make_instance lib_buf NangateOpenCellLibrary/BUF_X2]
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puts "PASS: make_instance lib_buf BUF_X2"
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#---------------------------------------------------------------
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# Make nets for connections
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#---------------------------------------------------------------
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set net_a [make_net net_a]
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set net_b [make_net net_b]
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puts "PASS: made nets net_a and net_b"
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#---------------------------------------------------------------
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# Connect using port names
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#---------------------------------------------------------------
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connect_pin net_a lib_buf/A
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puts "PASS: connect_pin net_a lib_buf/A"
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connect_pin net_b lib_buf/Z
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puts "PASS: connect_pin net_b lib_buf/Z"
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#---------------------------------------------------------------
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# Verify connections
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#---------------------------------------------------------------
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set lib_buf_pins [get_pins lib_buf/*]
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puts "lib_buf pins: [llength $lib_buf_pins]"
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foreach p $lib_buf_pins {
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puts " pin: [get_full_name $p] dir=[get_property $p direction]"
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}
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#---------------------------------------------------------------
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# Test get_fanin/get_fanout on new instances
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#---------------------------------------------------------------
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puts "--- fanin/fanout on new cells ---"
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catch {
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set fi [get_fanin -to [get_pins lib_buf/Z] -flat]
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puts "fanin to lib_buf/Z: [llength $fi]"
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} msg
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catch {
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set fo [get_fanout -from [get_pins lib_buf/A] -flat]
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puts "fanout from lib_buf/A: [llength $fo]"
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} msg
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#---------------------------------------------------------------
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# Disconnect and reconnect
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#---------------------------------------------------------------
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puts "--- disconnect and reconnect ---"
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disconnect_pin net_a lib_buf/A
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puts "PASS: disconnect_pin net_a lib_buf/A"
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# Reconnect to a different net
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connect_pin net_b lib_buf/A
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puts "PASS: reconnect lib_buf/A to net_b"
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# Disconnect everything
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disconnect_pin net_b lib_buf/A
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disconnect_pin net_b lib_buf/Z
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puts "PASS: disconnected all pins from lib_buf"
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#---------------------------------------------------------------
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# Delete instance and nets
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#---------------------------------------------------------------
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delete_instance lib_buf
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puts "PASS: delete_instance lib_buf"
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delete_net net_a
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delete_net net_b
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puts "PASS: delete_net net_a and net_b"
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#---------------------------------------------------------------
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# Test making multiple instances and verifying
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#---------------------------------------------------------------
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puts "--- multiple instance creation ---"
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set inst1 [make_instance test_inv1 NangateOpenCellLibrary/INV_X1]
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set inst2 [make_instance test_inv2 NangateOpenCellLibrary/INV_X2]
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set inst3 [make_instance test_nand NangateOpenCellLibrary/NAND2_X1]
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puts "PASS: made 3 instances"
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set all_cells [get_cells *]
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puts "total cells after add: [llength $all_cells]"
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# Test finding cells by pattern
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set test_insts [get_cells test_*]
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puts "test_* cells: [llength $test_insts]"
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# Delete them
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delete_instance test_inv1
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delete_instance test_inv2
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delete_instance test_nand
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puts "PASS: deleted all test instances"
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set all_cells2 [get_cells *]
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puts "total cells after delete: [llength $all_cells2]"
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#---------------------------------------------------------------
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# Test replace_cell more extensively
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#---------------------------------------------------------------
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puts "--- replace_cell tests ---"
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# Replace buf1 with BUF_X4
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set rc1 [replace_cell buf1 NangateOpenCellLibrary/BUF_X4]
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puts "replace_cell buf1 -> BUF_X4: $rc1"
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set buf1_ref [get_property [get_cells buf1] ref_name]
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puts "buf1 ref after replace: $buf1_ref"
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# Report checks to ensure timing still works after replacement
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report_checks
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puts "PASS: report_checks after replace_cell"
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# Replace back
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replace_cell buf1 NangateOpenCellLibrary/BUF_X1
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puts "PASS: replace_cell buf1 back to BUF_X1"
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puts "ALL PASSED"
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