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Fixed #807 - now supporting incremental connect and clear_connections in DRC/LVS

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This commit is contained in:
Matthias Koefferlein
2021-05-24 21:56:57 +02:00
parent 58afc47071
commit 1c8442f485
10 changed files with 241 additions and 18 deletions
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testdata/ruby/dbLayoutToNetlist.rb
Vendored
+59 -1
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@@ -170,7 +170,8 @@ class DBLayoutToNetlist_TestClass < TestBase
# Perform netlist extraction
l2n.extract_netlist
assert_equal(l2n.netlist.to_s, <<END)
nl_string = l2n.netlist.to_s
assert_equal(nl_string, <<END)
circuit TRANS ($1=$1,$2=$2);
end;
circuit INV2 (OUT=OUT,$2=$3,$3=$4);
@@ -218,6 +219,15 @@ END
assert_equal(r.to_s,
"(-980,-420;-980,2420;-620,2420;-620,-420);(-800,820;-800,1180;580,1180;580,820);(-980,2420;-980,3180;-620,3180;-620,2420);(-980,-380;-980,380;-620,380;-620,-380)")
assert_equal(l2n.is_extracted?, true)
l2n.reset_extracted
assert_equal(l2n.is_extracted?, false)
assert_equal(l2n.netlist.inspect, "nil")
l2n.extract_netlist
assert_equal(l2n.is_extracted?, true)
assert_equal(l2n.netlist.to_s, nl_string)
end
def test_10_LayoutToNetlistExtractionWithoutDevices
@@ -755,6 +765,54 @@ END
assert_equal((a2_10.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(201, 0)))).to_s, "")
assert_equal((a2_17.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(202, 0)))).to_s, "")
# --- simple incremental antenna check with metal1 + metal2
l2n._destroy
l2n = RBA::LayoutToNetlist::new(dss)
l2n.register(rdiode, "diode")
l2n.register(rpoly, "poly")
l2n.register(rcont, "cont")
l2n.register(rmetal1, "metal1")
l2n.register(rvia1, "via1")
l2n.register(rmetal2, "metal2")
l2n.connect(rpoly)
l2n.connect(rcont)
l2n.connect(rmetal1)
l2n.connect(rmetal2)
l2n.connect(rpoly, rcont)
l2n.connect(rcont, rmetal1)
assert_equal(l2n.is_extracted?, false)
l2n.extract_netlist
assert_equal(l2n.is_extracted?, true)
a1_3 = l2n.antenna_check(rpoly, rmetal1, 3)
a1_10 = l2n.antenna_check(rpoly, rmetal1, 10)
a1_30 = l2n.antenna_check(rpoly, rmetal1, 30)
# Note: flatten.merged performs some normalization
assert_equal((a1_3.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(100, 0)))).to_s, "")
assert_equal((a1_10.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(101, 0)))).to_s, "")
assert_equal((a1_30.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(102, 0)))).to_s, "")
l2n.connect(rmetal1, rvia1)
l2n.connect(rvia1, rmetal2)
assert_equal(l2n.is_extracted?, false)
l2n.extract_netlist
assert_equal(l2n.is_extracted?, true)
a2_5 = l2n.antenna_check(rpoly, rmetal2, 5)
a2_10 = l2n.antenna_check(rpoly, rmetal2, 10)
a2_17 = l2n.antenna_check(rpoly, rmetal2, 17)
# Note: flatten.merged performs some normalization
assert_equal((a2_5.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(200, 0)))).to_s, "")
assert_equal((a2_10.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(201, 0)))).to_s, "")
assert_equal((a2_17.flatten ^ RBA::Region::new(ly_au.top_cell.begin_shapes_rec(ly_au.layer(202, 0)))).to_s, "")
# --- antenna check with diodes and antenna effect reduction
l2n._destroy