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Other changes to enable new features in the mapper (bug fix).

This commit is contained in:
Alan Mishchenko 2011-07-15 12:27:40 +07:00
parent 2dd6b9789d
commit 96e44e313e
1 changed files with 48 additions and 0 deletions
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48
src/base/abci/abcIf.c
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@ -40,6 +40,7 @@ extern void Abc_NtkBddReorder( Abc_Ntk_t * pNtk, int fVerbose );
extern void Abc_NtkBidecResyn( Abc_Ntk_t * pNtk, int fVerbose );
extern void Abc_NtkCollectPoDrivers( If_Man_t * p, Abc_Ntk_t * pNtk );
extern void Abc_NtkCreateChoiceDrivers( If_Man_t * p );
extern void Abc_NtkFreePoDrivers( If_Man_t * p, Abc_Ntk_t * pNtk );
////////////////////////////////////////////////////////////////////////
@ -139,6 +140,7 @@ Abc_Ntk_t * Abc_NtkIf( Abc_Ntk_t * pNtk, If_Par_t * pPars )
// perform FPGA mapping
if ( pPars->fEnableRealPos )
Abc_NtkCollectPoDrivers( pIfMan, pNtk );
Abc_NtkCreateChoiceDrivers( pIfMan );
if ( !If_ManPerformMapping( pIfMan ) )
{
Abc_NtkFreePoDrivers( pIfMan, pNtk );
@ -762,6 +764,52 @@ void Abc_NtkCollectPoDrivers( If_Man_t * p, Abc_Ntk_t * pNtk )
// printf( "\n" );
}
/**Function*************************************************************
Synopsis [Frees PO drivers.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkCreateChoiceDrivers( If_Man_t * p )
{
Vec_Int_t * vVec;
If_Obj_t * pObj, * pTemp;
int i, Counter = 0;
if ( p->pDriverCuts == NULL )
return;
If_ManForEachNode( p, pObj, i )
{
// skip non-choice nodes
if ( pObj->pEquiv == NULL || pObj->nRefs == 0 )
continue;
// find driver cut
vVec = NULL;
for ( pTemp = pObj; pTemp; pTemp = pTemp->pEquiv )
if ( p->pDriverCuts[pTemp->Id] != NULL )
{
vVec = Vec_IntDup( p->pDriverCuts[pTemp->Id] );
break;
}
if ( vVec == NULL )
continue;
// transfer driver cut to the root node
for ( pTemp = pObj; pTemp; pTemp = pTemp->pEquiv )
{
Vec_IntFreeP( &p->pDriverCuts[pTemp->Id] );
p->pDriverCuts[pTemp->Id] = Vec_IntDup( vVec );
}
Vec_IntFree( vVec );
Counter++;
}
// printf( "Choice driver cut updates = %d.\n", Counter );
}
/**Function*************************************************************
Synopsis [Frees PO drivers.]