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Fixing assertion failure when all POs have constant functions.

This commit is contained in:
Alan Mishchenko 2014-02-06 12:40:55 -08:00
parent 48912a2247
commit 05fbf4bd69
2 changed files with 4 additions and 1 deletions
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3
src/map/scl/sclSize.c
View File

@ -50,12 +50,15 @@ Abc_Obj_t * Abc_SclFindCriticalCo( SC_Man * p, int * pfRise )
Abc_Obj_t * pObj, * pPivot = NULL;
float fMaxArr = 0;
int i;
assert( Abc_NtkPoNum(p->pNtk) > 0 );
Abc_NtkForEachCo( p->pNtk, pObj, i )
{
SC_Pair * pArr = Abc_SclObjTime( p, pObj );
if ( fMaxArr < pArr->rise ) fMaxArr = pArr->rise, *pfRise = 1, pPivot = pObj;
if ( fMaxArr < pArr->fall ) fMaxArr = pArr->fall, *pfRise = 0, pPivot = pObj;
}
if ( fMaxArr == 0 )
pPivot = Abc_NtkPo(p->pNtk, 0);
assert( pPivot != NULL );
return pPivot;
}

2
src/map/scl/sclUpsize.c
View File

@ -898,7 +898,7 @@ void Abc_SclUpsizePerform( SC_Lib * pLib, Abc_Ntk_t * pNtk, SC_SizePars * pPars
// perform upsizing
nAllPos = nAllNodes = nAllTfos = nAllUpsizes = 0;
if ( p->BestDelay <= pPars->DelayUser )
printf( "Current delay (%.2f ps) is better than the target delay (%.2f ps).\n", p->BestDelay, (float)pPars->DelayUser );
printf( "Current delay (%.2f ps) does not exceed the target delay (%.2f ps). Upsizing is not performed.\n", p->BestDelay, (float)pPars->DelayUser );
else
for ( i = 0; i < pPars->nIters; i++ )
{