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dcalc use load slew changes to stop propagation

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Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry
2024-12-15 18:16:22 -08:00
parent 49a931b0d1
commit 2d11aa9c5e
5 changed files with 90 additions and 31 deletions
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25
include/sta/GraphDelayCalc.hh
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@@ -26,7 +26,6 @@
#include "SearchClass.hh"
#include "DcalcAnalysisPt.hh"
#include "StaState.hh"
#include "Delay.hh"
#include "ArcDelayCalc.hh"
namespace sta {
@@ -41,6 +40,7 @@ class FindVertexDelays;
class NetCaps;
typedef Map<const Vertex*, MultiDrvrNet*> MultiDrvrNetMap;
typedef vector<SlewSeq> DrvrLoadSlews;
// This class traverses the graph calling the arc delay calculator and
// annotating delays on graph edges.
@@ -163,8 +163,9 @@ protected:
const TimingArc *arc,
float from_slew,
const DcalcAnalysisPt *dcalc_ap);
bool findDriverDelays(Vertex *drvr_vertex,
ArcDelayCalc *arc_delay_calc);
void findDriverDelays(Vertex *drvr_vertex,
ArcDelayCalc *arc_delay_calc,
LoadPinIndexMap &load_pin_index_map);
MultiDrvrNet *multiDrvrNet(const Vertex *drvr_vertex) const;
MultiDrvrNet *findMultiDrvrNet(Vertex *drvr_pin);
MultiDrvrNet *makeMultiDrvrNet(Vertex *drvr_vertex);
@@ -172,20 +173,23 @@ protected:
Vertex *firstLoad(Vertex *drvr_vertex);
bool findDriverDelays1(Vertex *drvr_vertex,
MultiDrvrNet *multi_drvr,
ArcDelayCalc *arc_delay_calc);
ArcDelayCalc *arc_delay_calc,
LoadPinIndexMap &load_pin_index_map);
void initLoadSlews(Vertex *drvr_vertex);
bool findDriverEdgeDelays(Vertex *drvr_vertex,
const MultiDrvrNet *multi_drvr,
Edge *edge,
ArcDelayCalc *arc_delay_calc,
const MultiDrvrNet *multi_drvr,
Edge *edge,
ArcDelayCalc *arc_delay_calc,
LoadPinIndexMap &load_pin_index_map,
// Return value.
array<bool, RiseFall::index_count> &delay_exists);
bool findDriverArcDelays(Vertex *drvr_vertex,
const MultiDrvrNet *multi_drvr,
Edge *edge,
const TimingArc *arc,
LoadPinIndexMap &load_pin_index_map,
const DcalcAnalysisPt *dcalc_ap,
ArcDelayCalc *arc_delay_calc);
ArcDelayCalc *arc_delay_calc,
LoadPinIndexMap &load_pin_index_map);
ArcDcalcArgSeq makeArcDcalcArgs(Vertex *drvr_vertex,
const MultiDrvrNet *multi_drvr,
Edge *edge,
@@ -205,6 +209,9 @@ protected:
void findVertexDelay(Vertex *vertex,
ArcDelayCalc *arc_delay_calc,
bool propagate);
DrvrLoadSlews loadSlews(LoadPinIndexMap &load_pin_index_map);
bool loadSlewsChanged(DrvrLoadSlews &prev_load_slews,
LoadPinIndexMap &load_pin_index_map);
void enqueueTimingChecksEdges(Vertex *vertex);
bool annotateDelaysSlews(Edge *edge,
const TimingArc *arc,