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Fixing a non-reproducibility issue in "lutmin".

This commit is contained in:
Alan Mishchenko 2025-11-13 07:50:10 -08:00
parent b1c73c160c
commit 6534475fa1
1 changed files with 4 additions and 3 deletions
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7
src/base/abci/abcLutmin.c
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@ -1083,8 +1083,10 @@ Abc_Obj_t * Abc_NtkBddDecompose( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, int nLu
}
// cofactor w.r.t. the bound set variables
vCofs = Abc_NtkBddCofactors( dd, (DdNode *)pNode->pData, nLutSize );
vUniq = Vec_PtrDup( vCofs );
Vec_PtrUniqify( vUniq, (int (*)(const void *, const void *))Vec_PtrSortCompare );
// collect unique cofactors in the order they appear
vUniq = Vec_PtrAlloc( Vec_PtrSize(vCofs) );
Vec_PtrForEachEntry( DdNode *, vCofs, bCof, i )
Vec_PtrPushUnique( vUniq, bCof );
// only perform decomposition which it is support reducing with two less vars
if( Vec_PtrSize(vUniq) > (1 << (nLutSize-2)) )
{
@ -1257,4 +1259,3 @@ void Abc_NtkBddDecExplore( Abc_Obj_t * pNode ) {}
ABC_NAMESPACE_IMPL_END