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Enhancements for net export feature

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- some refactoring
- better performance (was slow because layer iteration
  was done outside of loop and recursive cluster iterator)
- with selected nets, only the required hierarchy is
  produced. For this a new argument is added to
  LayoutToNetlist::create_cell_mapping (nets) which
  allows selecting the nets for which a cell mapping
  is requested
This commit is contained in:
Matthias Koefferlein
2019-06-12 22:55:24 +02:00
parent 0f666d528c
commit ebd00c186b
17 changed files with 369 additions and 133 deletions
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src/db/unit_tests/dbLayoutToNetlistReaderTests.cc
+158 -1
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@@ -86,7 +86,164 @@ TEST(1_ReaderBasic)
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au.gds");
au = tl::combine_path (au, "l2n_reader_au_1.gds");
db::compare_layouts (_this, ly2, au);
}
{
db::Layout ly2;
ly2.dbu (l2n.internal_layout ()->dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOP"));
std::map<unsigned int, const db::Region *> lmap;
lmap [ly2.insert_layer (db::LayerProperties (10, 0))] = l2n.layer_by_name ("psd");
lmap [ly2.insert_layer (db::LayerProperties (11, 0))] = l2n.layer_by_name ("nsd");
lmap [ly2.insert_layer (db::LayerProperties (3, 0)) ] = l2n.layer_by_name ("poly");
lmap [ly2.insert_layer (db::LayerProperties (4, 0)) ] = l2n.layer_by_name ("diff_cont");
lmap [ly2.insert_layer (db::LayerProperties (5, 0)) ] = l2n.layer_by_name ("poly_cont");
lmap [ly2.insert_layer (db::LayerProperties (6, 0)) ] = l2n.layer_by_name ("metal1");
lmap [ly2.insert_layer (db::LayerProperties (7, 0)) ] = l2n.layer_by_name ("via1");
lmap [ly2.insert_layer (db::LayerProperties (8, 0)) ] = l2n.layer_by_name ("metal2");
std::vector<const db::Net *> nets;
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VSS"));
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VDD"));
db::CellMapping cm = l2n.cell_mapping_into (ly2, top2, nets);
l2n.build_nets (&nets, cm, ly2, lmap, "NET_", tl::Variant (), db::LayoutToNetlist::BNH_Disconnected, 0, "DEVICE_");
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au_1b.gds");
db::compare_layouts (_this, ly2, au);
}
{
db::Layout ly2;
ly2.dbu (l2n.internal_layout ()->dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOP"));
std::map<unsigned int, const db::Region *> lmap;
lmap [ly2.insert_layer (db::LayerProperties (10, 0))] = l2n.layer_by_name ("psd");
lmap [ly2.insert_layer (db::LayerProperties (11, 0))] = l2n.layer_by_name ("nsd");
lmap [ly2.insert_layer (db::LayerProperties (3, 0)) ] = l2n.layer_by_name ("poly");
lmap [ly2.insert_layer (db::LayerProperties (4, 0)) ] = l2n.layer_by_name ("diff_cont");
lmap [ly2.insert_layer (db::LayerProperties (5, 0)) ] = l2n.layer_by_name ("poly_cont");
lmap [ly2.insert_layer (db::LayerProperties (6, 0)) ] = l2n.layer_by_name ("metal1");
lmap [ly2.insert_layer (db::LayerProperties (7, 0)) ] = l2n.layer_by_name ("via1");
lmap [ly2.insert_layer (db::LayerProperties (8, 0)) ] = l2n.layer_by_name ("metal2");
std::vector<const db::Net *> nets;
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VSS"));
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VDD"));
db::CellMapping cm = l2n.cell_mapping_into (ly2, top2, nets);
l2n.build_nets (&nets, cm, ly2, lmap, "NET_", tl::Variant (), db::LayoutToNetlist::BNH_Flatten, 0, "DEVICE_");
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au_1c.gds");
db::compare_layouts (_this, ly2, au);
}
{
db::Layout ly2;
ly2.dbu (l2n.internal_layout ()->dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOP"));
std::map<unsigned int, const db::Region *> lmap;
lmap [ly2.insert_layer (db::LayerProperties (10, 0))] = l2n.layer_by_name ("psd");
lmap [ly2.insert_layer (db::LayerProperties (11, 0))] = l2n.layer_by_name ("nsd");
lmap [ly2.insert_layer (db::LayerProperties (3, 0)) ] = l2n.layer_by_name ("poly");
lmap [ly2.insert_layer (db::LayerProperties (4, 0)) ] = l2n.layer_by_name ("diff_cont");
lmap [ly2.insert_layer (db::LayerProperties (5, 0)) ] = l2n.layer_by_name ("poly_cont");
lmap [ly2.insert_layer (db::LayerProperties (6, 0)) ] = l2n.layer_by_name ("metal1");
lmap [ly2.insert_layer (db::LayerProperties (7, 0)) ] = l2n.layer_by_name ("via1");
lmap [ly2.insert_layer (db::LayerProperties (8, 0)) ] = l2n.layer_by_name ("metal2");
std::vector<const db::Net *> nets;
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VSS"));
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VDD"));
db::CellMapping cm = l2n.cell_mapping_into (ly2, top2, nets);
l2n.build_nets (&nets, cm, ly2, lmap, "NET_", tl::Variant (), db::LayoutToNetlist::BNH_SubcircuitCells, "CIRCUIT_", "DEVICE_");
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au_1d.gds");
db::compare_layouts (_this, ly2, au);
}
{
db::Layout ly2;
ly2.dbu (l2n.internal_layout ()->dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOP"));
std::map<unsigned int, const db::Region *> lmap;
lmap [ly2.insert_layer (db::LayerProperties (10, 0))] = l2n.layer_by_name ("psd");
lmap [ly2.insert_layer (db::LayerProperties (11, 0))] = l2n.layer_by_name ("nsd");
lmap [ly2.insert_layer (db::LayerProperties (3, 0)) ] = l2n.layer_by_name ("poly");
lmap [ly2.insert_layer (db::LayerProperties (4, 0)) ] = l2n.layer_by_name ("diff_cont");
lmap [ly2.insert_layer (db::LayerProperties (5, 0)) ] = l2n.layer_by_name ("poly_cont");
lmap [ly2.insert_layer (db::LayerProperties (6, 0)) ] = l2n.layer_by_name ("metal1");
lmap [ly2.insert_layer (db::LayerProperties (7, 0)) ] = l2n.layer_by_name ("via1");
lmap [ly2.insert_layer (db::LayerProperties (8, 0)) ] = l2n.layer_by_name ("metal2");
std::vector<const db::Net *> nets;
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VSS"));
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VDD"));
nets.push_back (l2n.netlist ()->circuit_by_name ("INV2")->net_by_name ("IN"));
db::CellMapping cm = l2n.cell_mapping_into (ly2, top2, nets);
l2n.build_nets (&nets, cm, ly2, lmap, "NET_", tl::Variant (), db::LayoutToNetlist::BNH_SubcircuitCells, "CIRCUIT_", 0);
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au_1e.gds");
db::compare_layouts (_this, ly2, au);
}
{
db::Layout ly2;
ly2.dbu (l2n.internal_layout ()->dbu ());
db::Cell &top2 = ly2.cell (ly2.add_cell ("TOP"));
std::map<unsigned int, const db::Region *> lmap;
lmap [ly2.insert_layer (db::LayerProperties (10, 0))] = l2n.layer_by_name ("psd");
lmap [ly2.insert_layer (db::LayerProperties (11, 0))] = l2n.layer_by_name ("nsd");
lmap [ly2.insert_layer (db::LayerProperties (3, 0)) ] = l2n.layer_by_name ("poly");
lmap [ly2.insert_layer (db::LayerProperties (4, 0)) ] = l2n.layer_by_name ("diff_cont");
lmap [ly2.insert_layer (db::LayerProperties (5, 0)) ] = l2n.layer_by_name ("poly_cont");
lmap [ly2.insert_layer (db::LayerProperties (6, 0)) ] = l2n.layer_by_name ("metal1");
lmap [ly2.insert_layer (db::LayerProperties (7, 0)) ] = l2n.layer_by_name ("via1");
lmap [ly2.insert_layer (db::LayerProperties (8, 0)) ] = l2n.layer_by_name ("metal2");
std::vector<const db::Net *> nets;
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VSS"));
nets.push_back (l2n.netlist ()->circuit_by_name ("RINGO")->net_by_name ("VDD"));
nets.push_back (l2n.netlist ()->circuit_by_name ("INV2")->net_by_name ("IN"));
db::CellMapping cm = l2n.const_cell_mapping_into (ly2, top2);
l2n.build_nets (&nets, cm, ly2, lmap, "NET_", tl::Variant (), db::LayoutToNetlist::BNH_SubcircuitCells, "CIRCUIT_", "DEVICE_");
std::string au = tl::testsrc ();
au = tl::combine_path (au, "testdata");
au = tl::combine_path (au, "algo");
au = tl::combine_path (au, "l2n_reader_au_1f.gds");
db::compare_layouts (_this, ly2, au);
}