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GateTableModel::gateDelay do not clip delays 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2026-03-31 14:20:50 -07:00
parent 1d4b516239
commit 9eb9edb0b3
1 changed files with 6 additions and 7 deletions
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13
liberty/TableModel.cc
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@ -108,19 +108,18 @@ GateTableModel::gateDelay(const Pvt *pvt,
float &gate_delay, float &gate_delay,
float &drvr_slew) const float &drvr_slew) const
{ {
if (delay_models_) if (delay_models_ && delay_models_->model())
gate_delay = findValue(pvt, delay_models_->model(), in_slew, load_cap, 0.0); gate_delay = findValue(pvt, delay_models_->model(), in_slew, load_cap, 0.0);
else else
gate_delay = 0.0; gate_delay = 0.0;
if (slew_models_) if (slew_models_ && slew_models_->model()) {
drvr_slew = findValue(pvt, slew_models_->model(), in_slew, load_cap, 0.0); drvr_slew = findValue(pvt, slew_models_->model(), in_slew, load_cap, 0.0);
else // Clip negative slews to zero.
drvr_slew = 0.0;
// Clip negative delays and slews to zero.
if (gate_delay < 0.0)
gate_delay = 0.0;
if (drvr_slew < 0.0) if (drvr_slew < 0.0)
drvr_slew = 0.0; drvr_slew = 0.0;
}
else
drvr_slew = 0.0;
} }
void void