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Changing 'if' to allow for delay optimization on sequential paths only.

This commit is contained in:
Alan Mishchenko 2012-05-20 22:18:23 +07:00
parent c6af9094c0
commit 77b83074e0
2 changed files with 9 additions and 8 deletions
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12
src/map/if/if.h
View File

@ -129,8 +129,10 @@ struct If_Par_t_
int fUseCnfs; // use local CNFs as a cost function
int fUseMv; // use local MV-SOPs as a cost function
int fUseAdders; // timing model for adders
int nLatchesCi; // the number of latches in seq mapping
int nLatchesCo; // the number of latches in seq mapping
int nLatchesCi; // the number of latches among the CIs
int nLatchesCo; // the number of latches among the COs
int nLatchesCiBox; // the number of white box outputs among the CIs
int nLatchesCoBox; // the number of white box inputs among the COs
int fLiftLeaves; // shift the leaves for seq mapping
int fUseCoAttrs; // use CO attributes
If_Lib_t * pLutLib; // the LUT library
@ -381,15 +383,15 @@ static inline void If_AndClear( If_And_t * pNode ) { *
Vec_PtrForEachEntry( If_Obj_t *, p->vCos, pObj, i )
// iterator over the primary inputs
#define If_ManForEachPi( p, pObj, i ) \
Vec_PtrForEachEntryStop( If_Obj_t *, p->vCis, pObj, i, If_ManCiNum(p) - p->pPars->nLatchesCi )
Vec_PtrForEachEntryStop( If_Obj_t *, p->vCis, pObj, i, If_ManCiNum(p) - p->pPars->nLatchesCi - p->pPars->nLatchesCiBox )
// iterator over the primary outputs
#define If_ManForEachPo( p, pObj, i ) \
Vec_PtrForEachEntryStop( If_Obj_t *, p->vCos, pObj, i, If_ManCoNum(p) - p->pPars->nLatchesCo )
Vec_PtrForEachEntryStartStop( If_Obj_t *, p->vCos, pObj, i, p->pPars->nLatchesCoBox, If_ManCoNum(p) - p->pPars->nLatchesCo )
// iterator over the latches
#define If_ManForEachLatchInput( p, pObj, i ) \
Vec_PtrForEachEntryStart( If_Obj_t *, p->vCos, pObj, i, If_ManCoNum(p) - p->pPars->nLatchesCo )
#define If_ManForEachLatchOutput( p, pObj, i ) \
Vec_PtrForEachEntryStart( If_Obj_t *, p->vCis, pObj, i, If_ManCiNum(p) - p->pPars->nLatchesCi )
Vec_PtrForEachEntryStartStop( If_Obj_t *, p->vCis, pObj, i, If_ManCiNum(p) - p->pPars->nLatchesCi - p->pPars->nLatchesCiBox, If_ManCiNum(p) - p->pPars->nLatchesCiBox )
// iterator over all objects in topological order
#define If_ManForEachObj( p, pObj, i ) \
Vec_PtrForEachEntry( If_Obj_t *, p->vObjs, pObj, i )

5
src/map/if/ifUtil.c
View File

@ -279,11 +279,10 @@ void If_ManComputeRequired( If_Man_t * p )
}
else if ( p->pPars->fLatchPaths )
{
assert( 0 );
If_ManForEachPo( p, pObj, i )
Tim_ManSetCoRequired( p->pManTim, pObj->IdPio, IF_FLOAT_LARGE );
Tim_ManSetCoRequired( p->pManTim, i, IF_FLOAT_LARGE );
If_ManForEachLatchInput( p, pObj, i )
Tim_ManSetCoRequired( p->pManTim, pObj->IdPio, p->RequiredGlo );
Tim_ManSetCoRequired( p->pManTim, i, p->RequiredGlo );
}
else
{