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report_check_types -max_slew respect set_driving_cell slew limit 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2021-10-22 11:50:33 -07:00
parent 17bd47049d
commit 50866cfaf5
1 changed files with 28 additions and 1 deletions
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29
search/CheckSlewLimits.cc
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@ -20,6 +20,7 @@
#include "Liberty.hh" #include "Liberty.hh"
#include "Network.hh" #include "Network.hh"
#include "Sdc.hh" #include "Sdc.hh"
#include "InputDrive.hh"
#include "Graph.hh" #include "Graph.hh"
#include "DcalcAnalysisPt.hh" #include "DcalcAnalysisPt.hh"
#include "GraphDelayCalc.hh" #include "GraphDelayCalc.hh"
@ -215,6 +216,32 @@ CheckSlewLimits::findLimit(const Pin *pin,
limit = limit1; limit = limit1;
exists = true; 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->slewLimit(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 { else {
LibertyPort *port = network->libertyPort(pin); LibertyPort *port = network->libertyPort(pin);
@ -222,7 +249,7 @@ CheckSlewLimits::findLimit(const Pin *pin,
LibertyPort *corner_port = port->cornerPort(corner->libertyIndex(min_max)); LibertyPort *corner_port = port->cornerPort(corner->libertyIndex(min_max));
corner_port->slewLimit(min_max, limit1, exists1); corner_port->slewLimit(min_max, limit1, exists1);
if (!exists1 if (!exists1
&& port->direction()->isAnyOutput() && corner_port->direction()->isAnyOutput()
&& min_max == MinMax::max()) && min_max == MinMax::max())
corner_port->libertyLibrary()->defaultMaxSlew(limit1, exists1); corner_port->libertyLibrary()->defaultMaxSlew(limit1, exists1);
if (exists1 if (exists1