diff options
Diffstat (limited to 'src/base/abc/abcUtil.c')
| -rw-r--r-- | src/base/abc/abcUtil.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/base/abc/abcUtil.c b/src/base/abc/abcUtil.c index abd8c812..33c97e83 100644 --- a/src/base/abc/abcUtil.c +++ b/src/base/abc/abcUtil.c @@ -2030,7 +2030,7 @@ Abc_Obj_t * Abc_NtkAddBuffsOne( Vec_Ptr_t * vBuffs, Abc_Obj_t * pFanin, int Leve } return pBuffer; } -Abc_Ntk_t * Abc_NtkAddBuffs( Abc_Ntk_t * pNtkInit, int fVerbose ) +Abc_Ntk_t * Abc_NtkAddBuffs( Abc_Ntk_t * pNtkInit, int fReverse, int fVerbose ) { Vec_Ptr_t * vBuffs; Abc_Ntk_t * pNtk = Abc_NtkDup( pNtkInit ); @@ -2038,6 +2038,21 @@ Abc_Ntk_t * Abc_NtkAddBuffs( Abc_Ntk_t * pNtkInit, int fVerbose ) int i, k, nLevelMax = Abc_NtkLevel( pNtk ); Abc_NtkForEachCo( pNtk, pObj, i ) pObj->Level = nLevelMax + 1; + if ( fReverse ) + { + Vec_Ptr_t * vNodes = Abc_NtkDfs( pNtk, 1 ); + assert( nLevelMax < (1<<18) ); + Vec_PtrForEachEntryReverse( Abc_Obj_t *, vNodes, pObj, i ) + { + pObj->Level = (1<<18); + Abc_ObjForEachFanout( pObj, pFanin, k ) + pObj->Level = Abc_MinInt( pFanin->Level - 1, pObj->Level ); + assert( pObj->Level > 0 ); + } + Vec_PtrFree( vNodes ); + Abc_NtkForEachCi( pNtk, pObj, i ) + pObj->Level = 0; + } vBuffs = Vec_PtrStart( Abc_NtkObjNumMax(pNtk) * (nLevelMax + 1) ); Abc_NtkForEachObj( pNtk, pObj, i ) { |