luke
/
abc
mirror of https://github.com/YosysHQ/abc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Bug fix in 'move_names' related to feed-through nets.

This commit is contained in:
Alan Mishchenko 2015-03-15 10:53:23 +07:00
parent 3f2b1233ee
commit 05244daba9
1 changed files with 20 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/base/abc/abcNames.c
View File

@ -509,7 +509,7 @@ void Abc_NtkShortNames( Abc_Ntk_t * pNtk )
***********************************************************************/ ***********************************************************************/
void Abc_NtkMoveNames( Abc_Ntk_t * pNtk, Abc_Ntk_t * pOld ) void Abc_NtkMoveNames( Abc_Ntk_t * pNtk, Abc_Ntk_t * pOld )
{ {
Abc_Obj_t * pObj; int i; Abc_Obj_t * pObj, * pObjCi, * pFanin; int i, Count = 0;
Nm_ManFree( pNtk->pManName ); Nm_ManFree( pNtk->pManName );
pNtk->pManName = Nm_ManCreate( Abc_NtkCiNum(pNtk) + Abc_NtkCoNum(pNtk) + Abc_NtkBoxNum(pNtk) ); pNtk->pManName = Nm_ManCreate( Abc_NtkCiNum(pNtk) + Abc_NtkCoNum(pNtk) + Abc_NtkBoxNum(pNtk) );
Abc_NtkForEachPi( pNtk, pObj, i ) Abc_NtkForEachPi( pNtk, pObj, i )
@ -521,6 +521,25 @@ void Abc_NtkMoveNames( Abc_Ntk_t * pNtk, Abc_Ntk_t * pOld )
Abc_ObjAssignName( Abc_ObjFanin0(pObj), Abc_ObjName(Abc_ObjFanin0(Abc_NtkBox(pOld, i))), NULL ); Abc_ObjAssignName( Abc_ObjFanin0(pObj), Abc_ObjName(Abc_ObjFanin0(Abc_NtkBox(pOld, i))), NULL );
Abc_ObjAssignName( Abc_ObjFanout0(pObj), Abc_ObjName(Abc_ObjFanout0(Abc_NtkBox(pOld, i))), NULL ); Abc_ObjAssignName( Abc_ObjFanout0(pObj), Abc_ObjName(Abc_ObjFanout0(Abc_NtkBox(pOld, i))), NULL );
} }
// if CO points to CI with the same name, remove buffer between them
Abc_NtkForEachCo( pNtk, pObj, i )
{
int nCiId = Nm_ManFindIdByNameTwoTypes( pNtk->pManName, Abc_ObjName(pObj), ABC_OBJ_PI, ABC_OBJ_BO );
if ( nCiId == -1 )
continue;
pObjCi = Abc_NtkObj( pNtk, nCiId );
assert( !strcmp( Abc_ObjName(pObj), Abc_ObjName(pObjCi) ) );
pFanin = Abc_ObjFanin0(pObj);
if ( pFanin == pObjCi )
continue;
assert( Abc_NodeIsBuf(pFanin) );
Abc_ObjPatchFanin( pObj, pFanin, pObjCi );
if ( Abc_ObjFanoutNum(pFanin) == 0 )
Abc_NtkDeleteObj( pFanin );
Count++;
}
if ( Count )
printf( "Redirected %d POs from buffers to PIs with the same name.\n", Count );
} }