mirror of https://github.com/KLayout/klayout.git
One more test for probing with a slightly more complex hierarchy.
This commit is contained in:
Matthias Koefferlein
parent
f86f8149eb
commit
bc4f9efa5d
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@ -432,3 +432,245 @@ TEST(1_Basic)
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "INV2:$2");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "RINGO:$I2");
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}
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TEST(2_Probing)
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{
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db::Layout ly;
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db::LayerMap lmap;
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unsigned int nwell = define_layer (ly, lmap, 1);
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unsigned int active = define_layer (ly, lmap, 2);
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unsigned int poly = define_layer (ly, lmap, 3);
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unsigned int poly_lbl = define_layer (ly, lmap, 3, 1);
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unsigned int diff_cont = define_layer (ly, lmap, 4);
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unsigned int poly_cont = define_layer (ly, lmap, 5);
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unsigned int metal1 = define_layer (ly, lmap, 6);
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unsigned int metal1_lbl = define_layer (ly, lmap, 6, 1);
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unsigned int via1 = define_layer (ly, lmap, 7);
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unsigned int metal2 = define_layer (ly, lmap, 8);
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unsigned int metal2_lbl = define_layer (ly, lmap, 8, 1);
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{
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db::LoadLayoutOptions options;
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options.get_options<db::CommonReaderOptions> ().layer_map = lmap;
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options.get_options<db::CommonReaderOptions> ().create_other_layers = false;
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std::string fn (tl::testsrc ());
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fn = tl::combine_path (fn, "testdata");
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fn = tl::combine_path (fn, "algo");
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fn = tl::combine_path (fn, "device_extract_l2.gds");
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tl::InputStream stream (fn);
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db::Reader reader (stream);
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reader.read (ly, options);
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}
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db::Cell &tc = ly.cell (*ly.begin_top_down ());
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db::LayoutToNetlist l2n (db::RecursiveShapeIterator (ly, tc, std::set<unsigned int> ()));
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std::auto_ptr<db::Region> rnwell (l2n.make_layer (nwell));
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std::auto_ptr<db::Region> ractive (l2n.make_layer (active));
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std::auto_ptr<db::Region> rpoly (l2n.make_polygon_layer (poly));
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std::auto_ptr<db::Region> rpoly_lbl (l2n.make_text_layer (poly_lbl));
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std::auto_ptr<db::Region> rdiff_cont (l2n.make_polygon_layer (diff_cont));
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std::auto_ptr<db::Region> rpoly_cont (l2n.make_polygon_layer (poly_cont));
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std::auto_ptr<db::Region> rmetal1 (l2n.make_polygon_layer (metal1));
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std::auto_ptr<db::Region> rmetal1_lbl (l2n.make_text_layer (metal1_lbl));
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std::auto_ptr<db::Region> rvia1 (l2n.make_polygon_layer (via1));
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std::auto_ptr<db::Region> rmetal2 (l2n.make_polygon_layer (metal2));
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std::auto_ptr<db::Region> rmetal2_lbl (l2n.make_text_layer (metal2_lbl));
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// derived regions
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db::Region rpactive = *ractive & *rnwell;
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db::Region rpgate = rpactive & *rpoly;
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db::Region rpsd = rpactive - rpgate;
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db::Region rnactive = *ractive - *rnwell;
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db::Region rngate = rnactive & *rpoly;
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db::Region rnsd = rnactive - rngate;
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// return the computed layers into the original layout and write it for debugging purposes
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unsigned int lgate = ly.insert_layer (db::LayerProperties (10, 0)); // 10/0 -> Gate
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unsigned int lsd = ly.insert_layer (db::LayerProperties (11, 0)); // 11/0 -> Source/Drain
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unsigned int lpdiff = ly.insert_layer (db::LayerProperties (12, 0)); // 12/0 -> P Diffusion
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unsigned int lndiff = ly.insert_layer (db::LayerProperties (13, 0)); // 13/0 -> N Diffusion
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rpgate.insert_into (&ly, tc.cell_index (), lgate);
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rngate.insert_into (&ly, tc.cell_index (), lgate);
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rpsd.insert_into (&ly, tc.cell_index (), lsd);
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rnsd.insert_into (&ly, tc.cell_index (), lsd);
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rpsd.insert_into (&ly, tc.cell_index (), lpdiff);
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rnsd.insert_into (&ly, tc.cell_index (), lndiff);
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// NOTE: the device extractor will add more debug layers for the transistors:
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// 20/0 -> Diffusion
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// 21/0 -> Gate
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MOSFETExtractor pmos_ex ("PMOS", &ly);
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MOSFETExtractor nmos_ex ("NMOS", &ly);
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// device extraction
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db::NetlistDeviceExtractor::input_layers dl;
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dl["SD"] = &rpsd;
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dl["G"] = &rpgate;
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dl["P"] = rpoly.get (); // not needed for extraction but to return terminal shapes
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l2n.extract_devices (pmos_ex, dl);
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dl["SD"] = &rnsd;
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dl["G"] = &rngate;
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dl["P"] = rpoly.get (); // not needed for extraction but to return terminal shapes
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l2n.extract_devices (nmos_ex, dl);
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// net extraction
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// Intra-layer
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l2n.connect (rpsd);
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l2n.connect (rnsd);
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l2n.connect (*rpoly);
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l2n.connect (*rdiff_cont);
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l2n.connect (*rpoly_cont);
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l2n.connect (*rmetal1);
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l2n.connect (*rvia1);
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l2n.connect (*rmetal2);
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// Inter-layer
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l2n.connect (rpsd, *rdiff_cont);
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l2n.connect (rnsd, *rdiff_cont);
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l2n.connect (*rpoly, *rpoly_cont);
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l2n.connect (*rpoly_cont, *rmetal1);
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l2n.connect (*rdiff_cont, *rmetal1);
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l2n.connect (*rmetal1, *rvia1);
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l2n.connect (*rvia1, *rmetal2);
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l2n.connect (*rpoly, *rpoly_lbl); // attaches labels
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l2n.connect (*rmetal1, *rmetal1_lbl); // attaches labels
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l2n.connect (*rmetal2, *rmetal2_lbl); // attaches labels
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// create some mess - we have to keep references to the layers to make them not disappear
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rmetal1_lbl.reset (0);
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rmetal2_lbl.reset (0);
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rpoly_lbl.reset (0);
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l2n.extract_netlist ();
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// debug layers produced for nets
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// 202/0 -> Active
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// 203/0 -> Poly
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// 204/0 -> Diffusion contacts
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// 205/0 -> Poly contacts
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// 206/0 -> Metal1
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// 207/0 -> Via1
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// 208/0 -> Metal2
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// 210/0 -> N source/drain
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// 211/0 -> P source/drain
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std::map<const db::Region *, unsigned int> dump_map;
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dump_map [&rpsd ] = ly.insert_layer (db::LayerProperties (210, 0));
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dump_map [&rnsd ] = ly.insert_layer (db::LayerProperties (211, 0));
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dump_map [rpoly.get () ] = ly.insert_layer (db::LayerProperties (203, 0));
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dump_map [rdiff_cont.get ()] = ly.insert_layer (db::LayerProperties (204, 0));
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dump_map [rpoly_cont.get ()] = ly.insert_layer (db::LayerProperties (205, 0));
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dump_map [rmetal1.get () ] = ly.insert_layer (db::LayerProperties (206, 0));
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dump_map [rvia1.get () ] = ly.insert_layer (db::LayerProperties (207, 0));
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dump_map [rmetal2.get () ] = ly.insert_layer (db::LayerProperties (208, 0));
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// write nets to layout
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db::CellMapping cm = l2n.cell_mapping_into (ly, tc);
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dump_nets_to_layout (l2n, ly, dump_map, cm);
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dump_map.clear ();
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dump_map [&rpsd ] = ly.insert_layer (db::LayerProperties (310, 0));
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dump_map [&rnsd ] = ly.insert_layer (db::LayerProperties (311, 0));
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dump_map [rpoly.get () ] = ly.insert_layer (db::LayerProperties (303, 0));
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dump_map [rdiff_cont.get ()] = ly.insert_layer (db::LayerProperties (304, 0));
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dump_map [rpoly_cont.get ()] = ly.insert_layer (db::LayerProperties (305, 0));
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dump_map [rmetal1.get () ] = ly.insert_layer (db::LayerProperties (306, 0));
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dump_map [rvia1.get () ] = ly.insert_layer (db::LayerProperties (307, 0));
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dump_map [rmetal2.get () ] = ly.insert_layer (db::LayerProperties (308, 0));
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dump_recursive_nets_to_layout (l2n, ly, dump_map, cm);
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// compare netlist as string
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EXPECT_EQ (l2n.netlist ()->to_string (),
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"Circuit RINGO ():\n"
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" XINV2PAIR $1 ($1=FB,$2=VDD,$3=VSS,$4=$I3,$5=OSC)\n"
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" XINV2PAIR $2 ($1=$I18,$2=VDD,$3=VSS,$4=FB,$5=$I9)\n"
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" XINV2PAIR $3 ($1=$I19,$2=VDD,$3=VSS,$4=$I9,$5=$I1)\n"
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" XINV2PAIR $4 ($1=$I20,$2=VDD,$3=VSS,$4=$I1,$5=$I2)\n"
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" XINV2PAIR $5 ($1=$I21,$2=VDD,$3=VSS,$4=$I2,$5=$I3)\n"
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"Circuit INV2PAIR ($1=$I7,$2=$I5,$3=$I4,$4=$I2,$5=$I1):\n"
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" XINV2 $1 (IN=$I3,$2=$I7,OUT=$I1,$4=$I4,$5=$I5)\n"
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" XINV2 $2 (IN=$I2,$2=$I6,OUT=$I3,$4=$I4,$5=$I5)\n"
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"Circuit INV2 (IN=IN,$2=$2,OUT=OUT,$4=$4,$5=$5):\n"
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" DPMOS $1 (S=$2,G=IN,D=$5) [L=0.25,W=0.95,AS=0.49875,AD=0.26125]\n"
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" DPMOS $2 (S=$5,G=$2,D=OUT) [L=0.25,W=0.95,AS=0.26125,AD=0.49875]\n"
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" DNMOS $3 (S=$2,G=IN,D=$4) [L=0.25,W=0.95,AS=0.49875,AD=0.26125]\n"
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" DNMOS $4 (S=$4,G=$2,D=OUT) [L=0.25,W=0.95,AS=0.26125,AD=0.49875]\n"
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" XTRANS $1 ($1=$2,$2=$4,$3=IN)\n"
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" XTRANS $2 ($1=$2,$2=$5,$3=IN)\n"
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" XTRANS $3 ($1=$5,$2=OUT,$3=$2)\n"
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" XTRANS $4 ($1=$4,$2=OUT,$3=$2)\n"
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"Circuit TRANS ($1=$1,$2=$2,$3=$3):\n"
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);
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// do some probing before purging
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// top level
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::DPoint (0.0, 1.8))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::Point (0, 1800))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::DPoint (-2.0, 1.8))), "(null)");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (-1.5, 1.8))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (24.5, 1.8))), "RINGO:OSC");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "RINGO:VSS");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "RINGO:$I18");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I3");
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// doesn't do anything here, but we test that this does not destroy anything:
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l2n.netlist ()->combine_devices ();
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// make pins for named nets of top-level circuits - this way they are not purged
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l2n.netlist ()->make_top_level_pins ();
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l2n.netlist ()->purge ();
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// compare netlist as string
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EXPECT_EQ (l2n.netlist ()->to_string (),
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"Circuit RINGO (FB=FB,OSC=OSC,VSS=VSS,VDD=VDD):\n"
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" XINV2PAIR $1 ($1=FB,$2=VDD,$3=VSS,$4=$I3,$5=OSC)\n"
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" XINV2PAIR $2 ($1=(null),$2=VDD,$3=VSS,$4=FB,$5=$I9)\n"
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" XINV2PAIR $3 ($1=(null),$2=VDD,$3=VSS,$4=$I9,$5=$I1)\n"
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" XINV2PAIR $4 ($1=(null),$2=VDD,$3=VSS,$4=$I1,$5=$I2)\n"
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" XINV2PAIR $5 ($1=(null),$2=VDD,$3=VSS,$4=$I2,$5=$I3)\n"
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"Circuit INV2PAIR ($1=$I7,$2=$I5,$3=$I4,$4=$I2,$5=$I1):\n"
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" XINV2 $1 (IN=$I3,$2=$I7,OUT=$I1,$4=$I4,$5=$I5)\n"
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" XINV2 $2 (IN=$I2,$2=(null),OUT=$I3,$4=$I4,$5=$I5)\n"
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"Circuit INV2 (IN=IN,$2=$2,OUT=OUT,$4=$4,$5=$5):\n"
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" DPMOS $1 (S=$2,G=IN,D=$5) [L=0.25,W=0.95,AS=0.49875,AD=0.26125]\n"
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" DPMOS $2 (S=$5,G=$2,D=OUT) [L=0.25,W=0.95,AS=0.26125,AD=0.49875]\n"
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" DNMOS $3 (S=$2,G=IN,D=$4) [L=0.25,W=0.95,AS=0.49875,AD=0.26125]\n"
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" DNMOS $4 (S=$4,G=$2,D=OUT) [L=0.25,W=0.95,AS=0.26125,AD=0.49875]\n"
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);
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// compare the collected test data
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std::string au = tl::testsrc ();
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au = tl::combine_path (au, "testdata");
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au = tl::combine_path (au, "algo");
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au = tl::combine_path (au, "device_extract_au2_with_rec_nets.gds");
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db::compare_layouts (_this, ly, au);
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// do some probing after purging
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// top level
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::DPoint (0.0, 1.8))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::Point (0, 1800))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal2, db::DPoint (-2.0, 1.8))), "(null)");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (-1.5, 1.8))), "RINGO:FB");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (24.5, 1.8))), "RINGO:OSC");
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// the transistor which supplies this probe target has been optimized away by "purge".
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (5.3, 0.0))), "(null)");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (2.6, 1.0))), "INV2PAIR:$I7");
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EXPECT_EQ (qnet_name (l2n.probe_net (*rmetal1, db::DPoint (6.4, 1.0))), "INV2PAIR:$I3");
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}
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