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report_check_types -max_capacitance respect set_driving_cell cap limit 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2021-10-22 12:05:45 -07:00
parent 50866cfaf5
commit 5e506940a7
1 changed files with 28 additions and 1 deletions
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29
search/CheckCapacitanceLimits.cc
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@ -20,6 +20,7 @@
#include "Liberty.hh"
#include "Network.hh"
#include "Sdc.hh"
#include "InputDrive.hh"
#include "DcalcAnalysisPt.hh"
#include "GraphDelayCalc.hh"
#include "StaState.hh"
@ -164,6 +165,32 @@ CheckCapacitanceLimits::findLimit(const Pin *pin,
limit = limit1;
exists = true;
}
InputDrive *drive = sdc->findInputDrive(port);
if (drive) {
for (auto min_max : MinMax::range()) {
for (auto rf : RiseFall::range()) {
LibertyCell *cell;
LibertyPort *from_port;
float *from_slews;
LibertyPort *to_port;
drive->driveCell(rf, min_max, cell, from_port, from_slews, to_port);
if (to_port) {
LibertyPort *corner_port = to_port->cornerPort(corner->libertyIndex(min_max));
corner_port->capacitanceLimit(min_max, limit1, exists1);
if (!exists1
&& corner_port->direction()->isAnyOutput()
&& min_max == MinMax::max())
corner_port->libertyLibrary()->defaultMaxSlew(limit1, exists1);
if (exists1
&& (!exists
|| min_max->compare(limit, limit1))) {
limit = limit1;
exists = true;
}
}
}
}
}
}
else {
Cell *cell = network->cell(network->instance(pin));
@ -314,7 +341,7 @@ CheckCapacitanceLimits::checkPin(Pin *pin)
const Sdc *sdc = sta_->sdc();
const Graph *graph = sta_->graph();
Vertex *vertex = graph->pinLoadVertex(pin);
return network->direction(pin)->isAnyOutput()
return network->isDriver(pin)
&& !sim->logicZeroOne(pin)
&& !sdc->isDisabled(pin)
&& !(vertex && sta_->isIdealClock(pin));