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Useful AIG duplication procedure.

This commit is contained in:
Alan Mishchenko 2017-09-05 20:17:21 -07:00
parent ecae67e3bf
commit c1c6e90d3e
1 changed files with 36 additions and 0 deletions
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36
src/aig/gia/giaDup.c
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@ -1557,6 +1557,42 @@ Gia_Man_t * Gia_ManDupCofactorVar( Gia_Man_t * p, int iVar, int Value )
Gia_ManStop( pTemp );
return pNew;
}
Gia_Man_t * Gia_ManDupMux( int iVar, Gia_Man_t * pCof1, Gia_Man_t * pCof0 )
{
Gia_Man_t * pGia[2] = {pCof0, pCof1};
Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj;
int i, n;
assert( Gia_ManRegNum(pCof0) == 0 );
assert( Gia_ManRegNum(pCof1) == 0 );
assert( Gia_ManCoNum(pCof0) == 1 );
assert( Gia_ManCoNum(pCof1) == 1 );
assert( Gia_ManCiNum(pCof1) == Gia_ManCiNum(pCof0) );
assert( iVar >= 0 && iVar < Gia_ManCiNum(pCof1) );
pNew = Gia_ManStart( Gia_ManObjNum(pCof1) + Gia_ManObjNum(pCof0) );
pNew->pName = Abc_UtilStrsav( pCof1->pName );
pNew->pSpec = Abc_UtilStrsav( pCof1->pSpec );
Gia_ManHashAlloc( pNew );
for ( n = 0; n < 2; n++ )
{
Gia_ManFillValue( pGia[n] );
Gia_ManConst0(pGia[n])->Value = 0;
Gia_ManForEachCi( pGia[n], pObj, i )
pObj->Value = n ? Gia_ManCi(pGia[0], i)->Value : Gia_ManAppendCi(pNew);
Gia_ManForEachCo( pGia[n], pObj, i )
Gia_ManDupCofactorVar_rec( pNew, pGia[n], Gia_ObjFanin0(pObj) );
}
Gia_ManForEachCo( pGia[0], pObj, i )
{
int Ctrl = Gia_ManCi(pGia[0], iVar)->Value;
int Lit1 = Gia_ObjFanin0Copy(Gia_ManCo(pGia[1], i));
int Lit0 = Gia_ObjFanin0Copy(pObj);
Gia_ManAppendCo( pNew, Gia_ManHashMux( pNew, Ctrl, Lit1, Lit0 ) );
}
pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp );
return pNew;
}
/**Function*************************************************************