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OpenSTA
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Merge pull request #313 from The-OpenROAD-Project-staging/sta_fix_clktreedelay_crash 

clkTreeDelay to check arc without assuming it exists
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Matt Liberty 2026-03-20 06:16:46 +00:00 committed by GitHub
parent 69e11bbd0d 2e0b35c4b2
commit 2e6dd04837
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GPG Key ID: B5690EEEBB952194
3 changed files with 3 additions and 5 deletions
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2
liberty/Liberty.cc
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@ -2761,7 +2761,7 @@ LibertyPort::clkTreeDelay(float in_slew,
|| (arc_set->role() == TimingRole::clockTreePathMax()
&& min_max == MinMax::max())) {
const TimingArc *arc = arc_set->arcTo(to_rf);
if (arc->fromEdge()->asRiseFall() == from_rf) {
if (arc && arc->fromEdge()->asRiseFall() == from_rf) {
const GateTableModel *gate_model = dynamic_cast<GateTableModel*>(arc->model());
if (gate_model)
return gate_model->delayModel()->findValue(in_slew, 0.0, 0.0);

4
spice/test/spice_write.ok
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@ -24,6 +24,4 @@ Path Type: max
9.92 slack (MET)
Differences found at line 2.
.include "/workspace/sta/OpenSTA/spice/test/results/spice_out/mock_model.sp"
.include "/workspace/sta2/OpenSTA/spice/test/results/spice_out/mock_model.sp"
No differences found.

2
spice/test/spice_write.tcl
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@ -47,4 +47,4 @@ write_path_spice \
-model_file $model_file \
-power VDD \
-ground VSS
diff_files $test_name.spok [file join $spice_dir path_1.sp]
diff_files $test_name.spok [file join $spice_dir path_1.sp] "mock_model.sp"