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DRT: Handle unconnected pins when initializing maze costs #10079

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Merged
maliberty merged 2 commits into from
Apr 7, 2026
Merged

DRT: Handle unconnected pins when initializing maze costs #10079

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3ab0c7e
drt: fix ignored terms in initializing the maze costs if they are not…
osamahammad21 Apr 7, 2026
90c34f4
drt: fix ok
osamahammad21 Apr 7, 2026
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8 changes: 2 additions & 6 deletions src/drt/src/dr/FlexDR_init.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2732,16 +2732,12 @@ void FlexDRWorker::initMazeCost_fixedObj(const frDesign* design)
switch (obj->typeId()) {
case frcBTerm: { // term no bloat
auto* net = static_cast<frBTerm*>(obj)->getNet();
if (net != nullptr) {
frNet2Terms[net].insert(obj);
}
frNet2Terms[net].insert(obj);
break;
}
case frcInstTerm: {
auto* net = static_cast<frInstTerm*>(obj)->getNet();
if (net != nullptr) {
frNet2Terms[net].insert(obj);
}
frNet2Terms[net].insert(obj);
if (isRoutingLayer) {
// unblock planar edge for obs over pin, ap will unblock via edge
// for legal pin access
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12 changes: 6 additions & 6 deletions src/drt/test/down_access_term.defok
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Original file line number Diff line number Diff line change
Expand Up @@ -39,20 +39,20 @@ NETS 1 ;
NEW met1 ( 135120 155955 ) ( * 158175 )
NEW met1 ( 112080 155955 ) ( 135120 * )
NEW met1 ( 112080 155215 ) ( * 155955 )
NEW met1 ( 1680 155215 ) ( 112080 * )
NEW met1 ( 144720 158175 ) ( 145200 * )
NEW met1 ( 135600 158175 ) ( 144240 * )
NEW met1 ( 144240 158175 ) ( 145200 * )
NEW met2 ( 145200 144855 ) ( * 158175 )
NEW met1 ( 135600 158175 ) ( 144720 * )
NEW met1 ( 1680 155215 ) ( 112080 * )
NEW li1 ( 145200 144855 ) L1M1_PR_MR
NEW met1 ( 145200 144855 ) M1M2_PR
NEW met3 ( 1440 155030 ) M3M4_PR
NEW met4 ( 1440 155030 ) M4M5_PR
NEW met2 ( 1680 155030 ) M2M3_PR
NEW met1 ( 1680 155215 ) M1M2_PR
NEW li1 ( 112080 154845 ) L1M1_PR_MR
NEW li1 ( 135600 158175 ) L1M1_PR_MR
NEW li1 ( 144720 158175 ) L1M1_PR_MR
NEW li1 ( 144240 158175 ) L1M1_PR_MR
NEW met1 ( 145200 158175 ) M1M2_PR
NEW li1 ( 145200 144855 ) L1M1_PR_MR
NEW met1 ( 145200 144855 ) M1M2_PR
NEW met3 ( 1440 155030 ) RECT ( -380 -150 0 150 ) ;
END NETS
END DESIGN
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