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Commit d21c0be4 by Alan Mishchenko
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Added slack computation to 'stime'.

parent 266af493
Showing with 43 additions and 7 deletions
src/base/abc/abc.h
...@@ -472,6 +472,9 @@ static inline void Abc_ObjSetMvVar( Abc_Obj_t * pObj, void * pV) { Vec_At ...@@ -472,6 +472,9 @@ static inline void Abc_ObjSetMvVar( Abc_Obj_t * pObj, void * pV) { Vec_At
#define Abc_NtkForEachNodeReverse( pNtk, pNode, i ) \ #define Abc_NtkForEachNodeReverse( pNtk, pNode, i ) \
for ( i = Vec_PtrSize((pNtk)->vObjs) - 1; (i >= 0) && (((pNode) = Abc_NtkObj(pNtk, i)), 1); i-- ) \ for ( i = Vec_PtrSize((pNtk)->vObjs) - 1; (i >= 0) && (((pNode) = Abc_NtkObj(pNtk, i)), 1); i-- ) \
if ( (pNode) == NULL || !Abc_ObjIsNode(pNode) ) {} else if ( (pNode) == NULL || !Abc_ObjIsNode(pNode) ) {} else
#define Abc_NtkForEachNodeReverse1( pNtk, pNode, i ) \
for ( i = Vec_PtrSize((pNtk)->vObjs) - 1; (i >= 0) && (((pNode) = Abc_NtkObj(pNtk, i)), 1); i-- ) \
if ( (pNode) == NULL || !Abc_ObjIsNode(pNode) || !Abc_ObjFaninNum(pNode) ) {} else
#define Abc_NtkForEachGate( pNtk, pNode, i ) \ #define Abc_NtkForEachGate( pNtk, pNode, i ) \
for ( i = 0; (i < Vec_PtrSize((pNtk)->vObjs)) && (((pNode) = Abc_NtkObj(pNtk, i)), 1); i++ ) \ for ( i = 0; (i < Vec_PtrSize((pNtk)->vObjs)) && (((pNode) = Abc_NtkObj(pNtk, i)), 1); i++ ) \
if ( (pNode) == NULL || !Abc_ObjIsGate(pNode) ) {} else if ( (pNode) == NULL || !Abc_ObjIsGate(pNode) ) {} else
......
src/map/scl/sclMan.h
...@@ -53,6 +53,7 @@ struct SC_Man_ ...@@ -53,6 +53,7 @@ struct SC_Man_
int nObjs; // allocated size int nObjs; // allocated size
Vec_Int_t * vGates; // mapping of objId into gateId Vec_Int_t * vGates; // mapping of objId into gateId
SC_Pair * pLoads; // loads for each gate SC_Pair * pLoads; // loads for each gate
SC_Pair * pDepts; // departures for each gate
SC_Pair * pTimes; // arrivals for each gate SC_Pair * pTimes; // arrivals for each gate
SC_Pair * pSlews; // slews for each gate SC_Pair * pSlews; // slews for each gate
SC_Pair * pTimes2; // arrivals for each gate SC_Pair * pTimes2; // arrivals for each gate
...@@ -77,12 +78,15 @@ static inline SC_Cell * Abc_SclObjCell( SC_Man * p, Abc_Obj_t * pObj ) { re ...@@ -77,12 +78,15 @@ static inline SC_Cell * Abc_SclObjCell( SC_Man * p, Abc_Obj_t * pObj ) { re
static inline void Abc_SclObjSetCell( SC_Man * p, Abc_Obj_t * pObj, SC_Cell * pCell ) { Vec_IntWriteEntry( p->vGates, Abc_ObjId(pObj), pCell->Id ); } static inline void Abc_SclObjSetCell( SC_Man * p, Abc_Obj_t * pObj, SC_Cell * pCell ) { Vec_IntWriteEntry( p->vGates, Abc_ObjId(pObj), pCell->Id ); }
static inline SC_Pair * Abc_SclObjLoad( SC_Man * p, Abc_Obj_t * pObj ) { return p->pLoads + Abc_ObjId(pObj); } static inline SC_Pair * Abc_SclObjLoad( SC_Man * p, Abc_Obj_t * pObj ) { return p->pLoads + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjDept( SC_Man * p, Abc_Obj_t * pObj ) { return p->pDepts + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjTime( SC_Man * p, Abc_Obj_t * pObj ) { return p->pTimes + Abc_ObjId(pObj); } static inline SC_Pair * Abc_SclObjTime( SC_Man * p, Abc_Obj_t * pObj ) { return p->pTimes + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjSlew( SC_Man * p, Abc_Obj_t * pObj ) { return p->pSlews + Abc_ObjId(pObj); } static inline SC_Pair * Abc_SclObjSlew( SC_Man * p, Abc_Obj_t * pObj ) { return p->pSlews + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjTime2( SC_Man * p, Abc_Obj_t * pObj ) { return p->pTimes2 + Abc_ObjId(pObj); } static inline SC_Pair * Abc_SclObjTime2( SC_Man * p, Abc_Obj_t * pObj ) { return p->pTimes2 + Abc_ObjId(pObj); }
static inline SC_Pair * Abc_SclObjSlew2( SC_Man * p, Abc_Obj_t * pObj ) { return p->pSlews2 + Abc_ObjId(pObj); } static inline SC_Pair * Abc_SclObjSlew2( SC_Man * p, Abc_Obj_t * pObj ) { return p->pSlews2 + Abc_ObjId(pObj); }
static inline float Abc_SclObjTimeMax( SC_Man * p, Abc_Obj_t * pObj ) { return Abc_MaxFloat(Abc_SclObjTime(p, pObj)->rise, Abc_SclObjTime(p, pObj)->fall); } static inline float Abc_SclObjTimeMax( SC_Man * p, Abc_Obj_t * pObj ) { return Abc_MaxFloat(Abc_SclObjTime(p, pObj)->rise, Abc_SclObjTime(p, pObj)->fall); }
static inline float Abc_SclObjDepthMax( SC_Man * p, Abc_Obj_t * pObj ) { return Abc_MaxFloat(Abc_SclObjDept(p, pObj)->rise, Abc_SclObjDept(p, pObj)->fall); }
static inline float Abc_SclObjSlack( SC_Man * p, Abc_Obj_t * pObj, float D ) { return D - Abc_MaxFloat(Abc_SclObjTime(p, pObj)->rise + Abc_SclObjDept(p, pObj)->rise, Abc_SclObjTime(p, pObj)->fall + Abc_SclObjDept(p, pObj)->fall); }
static inline void Abc_SclObjDupFanin( SC_Man * p, Abc_Obj_t * pObj ) { assert( Abc_ObjIsCo(pObj) ); *Abc_SclObjTime(p, pObj) = *Abc_SclObjTime(p, Abc_ObjFanin0(pObj)); } static inline void Abc_SclObjDupFanin( SC_Man * p, Abc_Obj_t * pObj ) { assert( Abc_ObjIsCo(pObj) ); *Abc_SclObjTime(p, pObj) = *Abc_SclObjTime(p, Abc_ObjFanin0(pObj)); }
static inline float Abc_SclObjGain( SC_Man * p, Abc_Obj_t * pObj ) { return (Abc_SclObjTime2(p, pObj)->rise - Abc_SclObjTime(p, pObj)->rise) + (Abc_SclObjTime2(p, pObj)->fall - Abc_SclObjTime(p, pObj)->fall); } static inline float Abc_SclObjGain( SC_Man * p, Abc_Obj_t * pObj ) { return (Abc_SclObjTime2(p, pObj)->rise - Abc_SclObjTime(p, pObj)->rise) + (Abc_SclObjTime2(p, pObj)->fall - Abc_SclObjTime(p, pObj)->fall); }
...@@ -115,6 +119,7 @@ static inline SC_Man * Abc_SclManAlloc( SC_Lib * pLib, Abc_Ntk_t * pNtk ) ...@@ -115,6 +119,7 @@ static inline SC_Man * Abc_SclManAlloc( SC_Lib * pLib, Abc_Ntk_t * pNtk )
p->pNtk = pNtk; p->pNtk = pNtk;
p->nObjs = Abc_NtkObjNumMax(pNtk); p->nObjs = Abc_NtkObjNumMax(pNtk);
p->pLoads = ABC_CALLOC( SC_Pair, p->nObjs ); p->pLoads = ABC_CALLOC( SC_Pair, p->nObjs );
p->pDepts = ABC_CALLOC( SC_Pair, p->nObjs );
p->pTimes = ABC_CALLOC( SC_Pair, p->nObjs ); p->pTimes = ABC_CALLOC( SC_Pair, p->nObjs );
p->pSlews = ABC_CALLOC( SC_Pair, p->nObjs ); p->pSlews = ABC_CALLOC( SC_Pair, p->nObjs );
p->pTimes2 = ABC_CALLOC( SC_Pair, p->nObjs ); p->pTimes2 = ABC_CALLOC( SC_Pair, p->nObjs );
...@@ -126,6 +131,7 @@ static inline void Abc_SclManFree( SC_Man * p ) ...@@ -126,6 +131,7 @@ static inline void Abc_SclManFree( SC_Man * p )
{ {
Vec_IntFreeP( &p->vGates ); Vec_IntFreeP( &p->vGates );
ABC_FREE( p->pLoads ); ABC_FREE( p->pLoads );
ABC_FREE( p->pDepts );
ABC_FREE( p->pTimes ); ABC_FREE( p->pTimes );
ABC_FREE( p->pSlews ); ABC_FREE( p->pSlews );
ABC_FREE( p->pTimes2 ); ABC_FREE( p->pTimes2 );
...@@ -134,6 +140,7 @@ static inline void Abc_SclManFree( SC_Man * p ) ...@@ -134,6 +140,7 @@ static inline void Abc_SclManFree( SC_Man * p )
} }
static inline void Abc_SclManCleanTime( SC_Man * p ) static inline void Abc_SclManCleanTime( SC_Man * p )
{ {
memset( p->pDepts, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pTimes, 0, sizeof(SC_Pair) * p->nObjs ); memset( p->pTimes, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pSlews, 0, sizeof(SC_Pair) * p->nObjs ); memset( p->pSlews, 0, sizeof(SC_Pair) * p->nObjs );
} }
......
src/map/scl/sclTime.c
...@@ -82,7 +82,7 @@ Abc_Obj_t * Abc_SclFindMostCriticalFanin( SC_Man * p, int * pfRise, Abc_Obj_t * ...@@ -82,7 +82,7 @@ Abc_Obj_t * Abc_SclFindMostCriticalFanin( SC_Man * p, int * pfRise, Abc_Obj_t *
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
static inline void Abc_SclTimeGatePrint( SC_Man * p, Abc_Obj_t * pObj, int fRise, int Length ) static inline void Abc_SclTimeGatePrint( SC_Man * p, Abc_Obj_t * pObj, int fRise, int Length, float maxDelay )
{ {
printf( "%7d : ", Abc_ObjId(pObj) ); printf( "%7d : ", Abc_ObjId(pObj) );
printf( "%d ", Abc_ObjFaninNum(pObj) ); printf( "%d ", Abc_ObjFaninNum(pObj) );
...@@ -94,17 +94,19 @@ static inline void Abc_SclTimeGatePrint( SC_Man * p, Abc_Obj_t * pObj, int fRise ...@@ -94,17 +94,19 @@ static inline void Abc_SclTimeGatePrint( SC_Man * p, Abc_Obj_t * pObj, int fRise
printf( "%7.1f ps ) ", Abc_SclObjTimePs(p, pObj, 0) ); printf( "%7.1f ps ) ", Abc_SclObjTimePs(p, pObj, 0) );
printf( "load =%6.2f ff ", Abc_SclObjLoadFf(p, pObj, fRise >= 0 ? fRise : 0 ) ); printf( "load =%6.2f ff ", Abc_SclObjLoadFf(p, pObj, fRise >= 0 ? fRise : 0 ) );
printf( "slew =%6.1f ps ", Abc_SclObjSlewPs(p, pObj, fRise >= 0 ? fRise : 0 ) ); printf( "slew =%6.1f ps ", Abc_SclObjSlewPs(p, pObj, fRise >= 0 ? fRise : 0 ) );
printf( "slack =%6.1f ps", Abc_SclObjSlack(p, pObj, maxDelay) );
printf( "\n" ); printf( "\n" );
} }
void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort ) void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort )
{ {
int i, nLength = 0, fRise = 0; int i, nLength = 0, fRise = 0;
Abc_Obj_t * pObj, * pPivot = Abc_SclFindCriticalCo( p, &fRise ); Abc_Obj_t * pObj, * pPivot = Abc_SclFindCriticalCo( p, &fRise );
float maxDelay = Abc_SclObjTimePs(p, pPivot, fRise);
printf( "WireLoad model = \"%s\". ", p->pWLoadUsed ? p->pWLoadUsed : "none" ); printf( "WireLoad model = \"%s\". ", p->pWLoadUsed ? p->pWLoadUsed : "none" );
printf( "Gates = %d. ", Abc_NtkNodeNum(p->pNtk) ); printf( "Gates = %d. ", Abc_NtkNodeNum(p->pNtk) );
printf( "Area = %.2f. ", Abc_SclGetTotalArea( p ) ); printf( "Area = %.2f. ", Abc_SclGetTotalArea( p ) );
printf( "Critical delay = %.1f ps\n", Abc_SclObjTimePs(p, pPivot, fRise) ); printf( "Critical delay = %.1f ps\n", maxDelay );
if ( fShort ) if ( fShort )
return; return;
...@@ -118,7 +120,7 @@ void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort ) ...@@ -118,7 +120,7 @@ void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort )
// print timing // print timing
Abc_NtkForEachNodeReverse( p->pNtk, pObj, i ) Abc_NtkForEachNodeReverse( p->pNtk, pObj, i )
if ( Abc_ObjFaninNum(pObj) > 0 ) if ( Abc_ObjFaninNum(pObj) > 0 )
Abc_SclTimeGatePrint( p, pObj, -1, nLength ); Abc_SclTimeGatePrint( p, pObj, -1, nLength, maxDelay );
} }
else else
{ {
...@@ -135,7 +137,7 @@ void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort ) ...@@ -135,7 +137,7 @@ void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort )
while ( pObj && Abc_ObjIsNode(pObj) ) while ( pObj && Abc_ObjIsNode(pObj) )
{ {
printf( "Critical path -- " ); printf( "Critical path -- " );
Abc_SclTimeGatePrint( p, pObj, fRise, nLength ); Abc_SclTimeGatePrint( p, pObj, fRise, nLength, maxDelay );
pObj = Abc_SclFindMostCriticalFanin( p, &fRise, pObj ); pObj = Abc_SclFindMostCriticalFanin( p, &fRise, pObj );
} }
} }
...@@ -206,7 +208,25 @@ void Abc_SclTimePin( SC_Man * p, SC_Timing * pTime, Abc_Obj_t * pObj, Abc_Obj_t ...@@ -206,7 +208,25 @@ void Abc_SclTimePin( SC_Man * p, SC_Timing * pTime, Abc_Obj_t * pObj, Abc_Obj_t
pSlewOut->fall = Abc_MaxFloat( pSlewOut->fall, Abc_SclLookup(pTime->pFallTrans, pSlewIn->rise, pLoad->fall) ); pSlewOut->fall = Abc_MaxFloat( pSlewOut->fall, Abc_SclLookup(pTime->pFallTrans, pSlewIn->rise, pLoad->fall) );
} }
} }
void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj ) void Abc_SclDeptPin( SC_Man * p, SC_Timing * pTime, Abc_Obj_t * pObj, Abc_Obj_t * pFanin )
{
SC_Pair * pDepIn = Abc_SclObjDept( p, pFanin ); // modified
SC_Pair * pSlewIn = Abc_SclObjSlew( p, pFanin );
SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
SC_Pair * pDepOut = Abc_SclObjDept( p, pObj );
if (pTime->tsense == sc_ts_Pos || pTime->tsense == sc_ts_Non)
{
pDepIn->rise = Abc_MaxFloat( pDepIn->rise, pDepOut->rise + Abc_SclLookup(pTime->pCellRise, pSlewIn->rise, pLoad->rise) );
pDepIn->fall = Abc_MaxFloat( pDepIn->fall, pDepOut->fall + Abc_SclLookup(pTime->pCellFall, pSlewIn->fall, pLoad->fall) );
}
if (pTime->tsense == sc_ts_Neg || pTime->tsense == sc_ts_Non)
{
pDepIn->fall = Abc_MaxFloat( pDepIn->fall, pDepOut->rise + Abc_SclLookup(pTime->pCellRise, pSlewIn->fall, pLoad->rise) );
pDepIn->rise = Abc_MaxFloat( pDepIn->rise, pDepOut->fall + Abc_SclLookup(pTime->pCellFall, pSlewIn->rise, pLoad->fall) );
}
}
void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj, int fDept )
{ {
SC_Timings * pRTime; SC_Timings * pRTime;
SC_Timing * pTime; SC_Timing * pTime;
...@@ -215,6 +235,7 @@ void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj ) ...@@ -215,6 +235,7 @@ void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj )
int k; int k;
if ( Abc_ObjIsCo(pObj) ) if ( Abc_ObjIsCo(pObj) )
{ {
if ( !fDept )
Abc_SclObjDupFanin( p, pObj ); Abc_SclObjDupFanin( p, pObj );
return; return;
} }
...@@ -230,6 +251,9 @@ void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj ) ...@@ -230,6 +251,9 @@ void Abc_SclTimeGate( SC_Man * p, Abc_Obj_t * pObj )
{ {
assert( Vec_PtrSize(pRTime->vTimings) == 1 ); assert( Vec_PtrSize(pRTime->vTimings) == 1 );
pTime = (SC_Timing *)Vec_PtrEntry( pRTime->vTimings, 0 ); pTime = (SC_Timing *)Vec_PtrEntry( pRTime->vTimings, 0 );
if ( fDept )
Abc_SclDeptPin( p, pTime, pObj, Abc_ObjFanin(pObj, k) );
else
Abc_SclTimePin( p, pTime, pObj, Abc_ObjFanin(pObj, k) ); Abc_SclTimePin( p, pTime, pObj, Abc_ObjFanin(pObj, k) );
} }
} }
...@@ -246,7 +270,7 @@ void Abc_SclTimeCone( SC_Man * p, Vec_Int_t * vCone ) ...@@ -246,7 +270,7 @@ void Abc_SclTimeCone( SC_Man * p, Vec_Int_t * vCone )
if ( fVerbose && Abc_ObjIsNode(pObj) ) if ( fVerbose && Abc_ObjIsNode(pObj) )
printf( " before (%6.1f ps %6.1f ps) ", Abc_SclObjTimePs(p, pObj, 1), Abc_SclObjTimePs(p, pObj, 0) ); printf( " before (%6.1f ps %6.1f ps) ", Abc_SclObjTimePs(p, pObj, 1), Abc_SclObjTimePs(p, pObj, 0) );
Abc_SclTimeGate( p, pObj ); Abc_SclTimeGate( p, pObj, 0 );
if ( fVerbose && Abc_ObjIsNode(pObj) ) if ( fVerbose && Abc_ObjIsNode(pObj) )
printf( "after (%6.1f ps %6.1f ps)\n", Abc_SclObjTimePs(p, pObj, 1), Abc_SclObjTimePs(p, pObj, 0) ); printf( "after (%6.1f ps %6.1f ps)\n", Abc_SclObjTimePs(p, pObj, 1), Abc_SclObjTimePs(p, pObj, 0) );
...@@ -259,7 +283,9 @@ void Abc_SclTimeNtkRecompute( SC_Man * p, float * pArea, float * pDelay ) ...@@ -259,7 +283,9 @@ void Abc_SclTimeNtkRecompute( SC_Man * p, float * pArea, float * pDelay )
Abc_SclComputeLoad( p ); Abc_SclComputeLoad( p );
Abc_SclManCleanTime( p ); Abc_SclManCleanTime( p );
Abc_NtkForEachNode1( p->pNtk, pObj, i ) Abc_NtkForEachNode1( p->pNtk, pObj, i )
Abc_SclTimeGate( p, pObj ); Abc_SclTimeGate( p, pObj, 0 );
Abc_NtkForEachNodeReverse1( p->pNtk, pObj, i )
Abc_SclTimeGate( p, pObj, 1 );
Abc_NtkForEachCo( p->pNtk, pObj, i ) Abc_NtkForEachCo( p->pNtk, pObj, i )
Abc_SclObjDupFanin( p, pObj ); Abc_SclObjDupFanin( p, pObj );
if ( pArea ) if ( pArea )
......
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