diff options
| -rw-r--r-- | src/base/abc/abcNtk.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/base/abc/abcNtk.c b/src/base/abc/abcNtk.c index 166d79e6..821cca4c 100644 --- a/src/base/abc/abcNtk.c +++ b/src/base/abc/abcNtk.c @@ -1464,6 +1464,11 @@ void Abc_NtkDropOneOutput( Abc_Ntk_t * pNtk, int iOutput ) { Abc_Obj_t * pObj, * pConst0, * pFaninNew; pObj = Abc_NtkPo( pNtk, iOutput ); + if ( Abc_ObjFanin0(pObj) == Abc_AigConst1(pNtk) && !Abc_ObjFaninC0(pObj) ) + { + Abc_ObjXorFaninC( pObj, 0 ); + return; + } pConst0 = Abc_ObjNot( Abc_AigConst1(pNtk) ); pFaninNew = Abc_ObjNotCond( pConst0, Abc_ObjFaninC0(pObj) ); Abc_ObjPatchFanin( pObj, Abc_ObjFanin0(pObj), pFaninNew ); |