Converting dch-style equivalences into scorr-style ones.

src/aig/gia/giaEquiv.c

@@ -581,6 +581,18 @@ Gia_Man_t * Gia_ManEquivReduce( Gia_Man_t * p, int fUseAll, int fDualOut, int fS
     Gia_Man_t * pNew;
     Gia_Obj_t * pObj;
     int i;
+    if ( !p->pReprs && p->pSibls )
+    {
+        p->pReprs = ABC_CALLOC( Gia_Rpr_t, Gia_ManObjNum(p) );
+        for ( i = 0; i < Gia_ManObjNum(p); i++ )
+            Gia_ObjSetRepr( p, i, GIA_VOID );
+        for ( i = 0; i < Gia_ManObjNum(p); i++ )
+            if ( p->pSibls[i] > 0 )
+                Gia_ObjSetRepr( p, i, p->pSibls[i] );
+        printf( "Created equivalence classes.\n" );
+        ABC_FREE( p->pNexts );
+        p->pNexts = Gia_ManDeriveNexts( p );
+    }
     if ( !p->pReprs )
     {
         Abc_Print( 1, "Gia_ManEquivReduce(): Equivalence classes are not available.\n" );