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

User-controlable SAT sweeper.

This commit is contained in:
Alan Mishchenko 2013-02-26 14:13:23 -05:00
parent b1c0b338a0
commit 6e65cd1431
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/aig/gia/giaSweeper.c
View File

@ -68,12 +68,12 @@ struct Swp_Man_t_
Vec_Int_t * vCondProbes; // conditions as probes
Vec_Int_t * vCondLits; // conditions as literals
// equivalence checking
sat_solver * pSat; // SAT solver
Vec_Int_t * vId2Lit; // mapping of Obj IDs into SAT literal
Vec_Int_t * vFront; // temporary frontier
Vec_Int_t * vFanins; // temporary fanins
Vec_Int_t * vCexSwp; // sweeper counter-example
Vec_Int_t * vCexUser; // user-visible counter-example
sat_solver * pSat; // SAT solver
int nSatVars; // counter of SAT variables
// statistics
int nSatCalls;
@ -124,7 +124,8 @@ static inline Swp_Man_t * Swp_ManStart( Gia_Man_t * pGia )
p->vCexSwp = Vec_IntAlloc( 100 );
p->pSat = sat_solver_new();
p->nSatVars = 1;
Swp_ManSetObj2Lit( p, 0, (Lit = Abc_Var2Lit(p->nSatVars++, 1)) );
Swp_ManSetObj2Lit( p, 0, (Lit = Abc_Var2Lit(p->nSatVars++, 0)) );
Lit = Abc_LitNot(Lit);
sat_solver_addclause( p->pSat, &Lit, &Lit + 1 );
pGia->pData = p;
return p;
@ -310,9 +311,13 @@ Gia_Man_t * Gia_SweeperExtractUserLogic( Gia_Man_t * p, Vec_Int_t * vProbeIds, V
Gia_ManConst0(p)->Value = 0;
Gia_ManForEachPi( p, pObj, i )
pObj->Value = Gia_ManAppendCi(pNew);
// create internal nodes
Gia_ManHashStart( pNew );
Gia_ManForEachObjVec( vObjIds, p, pObj, i )
pObj->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
Gia_ManHashStop( pNew );
Vec_IntFree( vObjIds );
// create outputs
Vec_IntForEachEntry( vProbeIds, ProbeId, i )
{
pObj = Gia_Lit2Obj( p, Gia_SweeperProbeLit(p, ProbeId) );