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Merge pull request #538 from marcelwa/fraig-store-restore-pi-order 

fraig_store: restore the PI order when the name comparison fails
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alanminko 2026-08-16 01:46:54 +09:00 committed by GitHub
parent 094c1ca741 4d504f20ba
commit a954df2892
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1 changed files with 16 additions and 0 deletions
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16
src/base/abci/abcFraig.c
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@ -670,13 +670,29 @@ int Abc_NtkFraigStore( Abc_Ntk_t * pNtkAdd )
extern int Abc_NodeCompareCiCo( Abc_Ntk_t * pNtkOld, Abc_Ntk_t * pNtkNew );
if ( !Abc_NodeCompareCiCo(pNtk, (Abc_Ntk_t *)Vec_PtrEntry(vStore, 0)) )
{
// Abc_NtkCompareSignals() sorts the PIs/POs/boxes of both networks by name as a
// side effect, which is what makes the comparison meaningful when the two do use
// the same names. When they do not, the comparison fails, the store is reset and
// this network is kept -- so the sort has to be undone here. Otherwise the stored
// network is a permutation of the one the caller read in, and everything after it
// is off by that permutation with nothing to indicate it.
Vec_Ptr_t * vPis = Vec_PtrDup( pNtk->vPis );
Vec_Ptr_t * vPos = Vec_PtrDup( pNtk->vPos );
Vec_Ptr_t * vBoxes = Vec_PtrDup( pNtk->vBoxes );
// reorder PIs of pNtk2 according to pNtk1
if ( !Abc_NtkCompareSignals( pNtk, (Abc_Ntk_t *)Vec_PtrEntry(vStore, 0), 1, 1 ) )
{
Vec_PtrFree( pNtk->vPis ); pNtk->vPis = vPis; vPis = NULL;
Vec_PtrFree( pNtk->vPos ); pNtk->vPos = vPos; vPos = NULL;
Vec_PtrFree( pNtk->vBoxes ); pNtk->vBoxes = vBoxes; vBoxes = NULL;
Abc_NtkOrderCisCos( pNtk );
printf( "Trying to store the network with different primary inputs.\n" );
printf( "The previously stored networks are deleted and this one is added.\n" );
Abc_NtkFraigStoreClean();
}
if ( vPis ) Vec_PtrFree( vPis );
if ( vPos ) Vec_PtrFree( vPos );
if ( vBoxes ) Vec_PtrFree( vBoxes );
}
}
Vec_PtrPush( vStore, pNtk );