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issue33 set_assigned_transition output_pin incr dcalc 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2024-05-30 09:15:34 -07:00
parent 2b0d0f9d23
commit e5e33ccb0d
2 changed files with 17 additions and 7 deletions
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22
dcalc/GraphDelayCalc.cc
View File

@ -1019,8 +1019,10 @@ GraphDelayCalc::annotateDelaysSlews(Edge *edge,
dcalc_result.drvrSlew(), dcalc_ap);
if (!edge->role()->isLatchDtoQ()) {
Vertex *drvr_vertex = edge->to(graph_);
annotateLoadDelays(drvr_vertex, arc->toEdge()->asRiseFall(), dcalc_result,
load_pin_index_map, delay_zero, true, dcalc_ap);
delay_changed |= annotateLoadDelays(drvr_vertex, arc->toEdge()->asRiseFall(),
dcalc_result,
load_pin_index_map, delay_zero, true,
dcalc_ap);
}
return delay_changed;
}
@ -1075,7 +1077,7 @@ GraphDelayCalc::annotateDelaySlew(Edge *edge,
// Annotate wire arc delays and load pin slews.
// extra_delay is additional wire delay to add to delay returned
// by the delay calculator.
void
bool
GraphDelayCalc::annotateLoadDelays(Vertex *drvr_vertex,
const RiseFall *drvr_rf,
ArcDcalcResult &dcalc_result,
@ -1084,6 +1086,7 @@ GraphDelayCalc::annotateLoadDelays(Vertex *drvr_vertex,
bool merge,
const DcalcAnalysisPt *dcalc_ap)
{
bool changed = false;
DcalcAPIndex ap_index = dcalc_ap->index();
const MinMax *slew_min_max = dcalc_ap->slewMinMax();
VertexOutEdgeIterator edge_iter(drvr_vertex, graph_);
@ -1100,17 +1103,21 @@ GraphDelayCalc::annotateLoadDelays(Vertex *drvr_vertex,
load_vertex->name(sdc_network_),
delayAsString(wire_delay, this),
delayAsString(load_slew, this));
bool load_changed = false;
if (!load_vertex->slewAnnotated(drvr_rf, slew_min_max)) {
if (drvr_vertex->slewAnnotated(drvr_rf, slew_min_max)) {
// Copy the driver slew to the load if it is annotated.
const Slew &drvr_slew = graph_->slew(drvr_vertex,drvr_rf,ap_index);
graph_->setSlew(load_vertex, drvr_rf, ap_index, drvr_slew);
load_changed = true;
}
else {
const Slew &slew = graph_->slew(load_vertex, drvr_rf, ap_index);
if (!merge
|| delayGreater(load_slew, slew, slew_min_max, this))
|| delayGreater(load_slew, slew, slew_min_max, this)) {
graph_->setSlew(load_vertex, drvr_rf, ap_index, load_slew);
load_changed = true;
}
}
}
if (!graph_->wireDelayAnnotated(wire_edge, drvr_rf, ap_index)) {
@ -1123,15 +1130,18 @@ GraphDelayCalc::annotateLoadDelays(Vertex *drvr_vertex,
if (!merge
|| delayGreater(wire_delay_extra, delay, delay_min_max, this)) {
graph_->setWireArcDelay(wire_edge, drvr_rf, ap_index, wire_delay_extra);
if (observer_)
observer_->delayChangedTo(load_vertex);
load_changed = true;
}
}
if (load_changed && observer_)
observer_->delayChangedTo(load_vertex);
// Enqueue bidirect driver from load vertex.
if (sdc_->bidirectDrvrSlewFromLoad(load_pin))
iter_->enqueue(graph_->pinDrvrVertex(load_pin));
changed |= load_changed;
}
}
return changed;
}
LoadPinIndexMap

2
include/sta/GraphDelayCalc.hh
View File

@ -209,7 +209,7 @@ protected:
ArcDelay &gate_delay,
Slew &gate_slew,
const DcalcAnalysisPt *dcalc_ap);
void annotateLoadDelays(Vertex *drvr_vertex,
bool annotateLoadDelays(Vertex *drvr_vertex,
const RiseFall *drvr_rf,
ArcDcalcResult &dcalc_result,
LoadPinIndexMap &load_pin_index_map,