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authorAlan Mishchenko <alanmi@berkeley.edu>2017-11-06 16:43:32 -0800
committerAlan Mishchenko <alanmi@berkeley.edu>2017-11-06 16:43:32 -0800
commit716969190a4d6d944cfa24a085c9e7069d868dab (patch)
tree1a0a95bd9dfc505341c367752658c732900e55de /src/aig/gia/giaSim.c
parent94a575a5b3113d714b96ba3711124c5780151bee (diff)
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Profiling quantification and other changes.
Diffstat (limited to 'src/aig/gia/giaSim.c')
-rw-r--r--src/aig/gia/giaSim.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/src/aig/gia/giaSim.c b/src/aig/gia/giaSim.c
index 90224062..aba7f712 100644
--- a/src/aig/gia/giaSim.c
+++ b/src/aig/gia/giaSim.c
@@ -748,6 +748,154 @@ void Gia_ManSimSimulatePattern( Gia_Man_t * p, char * pFileIn, char * pFileOut )
Vec_IntFree( vPatOut );
}
+
+/**Function*************************************************************
+
+ Synopsis [Bit-parallel simulation during AIG construction.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+static inline word * Gia_ManBuiltInData( Gia_Man_t * p, int iObj )
+{
+ return Vec_WrdEntryP( p->vSims, p->nSimWords * iObj );
+}
+void Gia_ManBuiltInSimStart( Gia_Man_t * p, int nWords, int nObjs )
+{
+ int i, k;
+ assert( !p->fBuiltInSim );
+ assert( Gia_ManAndNum(p) == 0 );
+ p->fBuiltInSim = 1;
+ p->nSimWords = nWords;
+ p->vSims = Vec_WrdAlloc( p->nSimWords * nObjs );
+ Vec_WrdFill( p->vSims, p->nSimWords, 0 );
+ Gia_ManRandomW( 1 );
+ for ( i = 0; i < Gia_ManCiNum(p); i++ )
+ for ( k = 0; k < p->nSimWords; k++ )
+ Vec_WrdPush( p->vSims, Gia_ManRandomW(0) );
+}
+void Gia_ManBuiltInSimPerform( Gia_Man_t * p, int iObj )
+{
+ Gia_Obj_t * pObj = Gia_ManObj( p, iObj );
+ word * pInfo0 = Gia_ManBuiltInData( p, Gia_ObjFaninId0(pObj, iObj) );
+ word * pInfo1 = Gia_ManBuiltInData( p, Gia_ObjFaninId1(pObj, iObj) ); int w;
+ assert( p->fBuiltInSim );
+ if ( Gia_ObjFaninC0(pObj) )
+ {
+ if ( Gia_ObjFaninC1(pObj) )
+ for ( w = 0; w < p->nSimWords; w++ )
+ Vec_WrdPush( p->vSims, ~(pInfo0[w] | pInfo1[w]) );
+ else
+ for ( w = 0; w < p->nSimWords; w++ )
+ Vec_WrdPush( p->vSims, ~pInfo0[w] & pInfo1[w] );
+ }
+ else
+ {
+ if ( Gia_ObjFaninC1(pObj) )
+ for ( w = 0; w < p->nSimWords; w++ )
+ Vec_WrdPush( p->vSims, pInfo0[w] & ~pInfo1[w] );
+ else
+ for ( w = 0; w < p->nSimWords; w++ )
+ Vec_WrdPush( p->vSims, pInfo0[w] & pInfo1[w] );
+ }
+ assert( Vec_WrdSize(p->vSims) == Gia_ManObjNum(p) * p->nSimWords );
+}
+int Gia_ManBuiltInSimCheck( Gia_Man_t * p, int iLit0, int iLit1 )
+{
+ word * pInfo0 = Gia_ManBuiltInData( p, Abc_Lit2Var(iLit0) );
+ word * pInfo1 = Gia_ManBuiltInData( p, Abc_Lit2Var(iLit1) ); int w;
+ assert( p->fBuiltInSim );
+
+// printf( "%d %d\n", Abc_LitIsCompl(iLit0), Abc_LitIsCompl(iLit1) );
+// Extra_PrintBinary( stdout, pInfo0, 64*p->nSimWords ); printf( "\n" );
+// Extra_PrintBinary( stdout, pInfo1, 64*p->nSimWords ); printf( "\n" );
+// printf( "\n" );
+
+ if ( Abc_LitIsCompl(iLit0) )
+ {
+ if ( Abc_LitIsCompl(iLit1) )
+ for ( w = 0; w < p->nSimWords; w++ )
+ if ( ~pInfo0[w] & ~pInfo1[w] )
+ return 1;
+ else
+ for ( w = 0; w < p->nSimWords; w++ )
+ if ( ~pInfo0[w] & pInfo1[w] )
+ return 1;
+ }
+ else
+ {
+ if ( Abc_LitIsCompl(iLit1) )
+ for ( w = 0; w < p->nSimWords; w++ )
+ if ( pInfo0[w] & ~pInfo1[w] )
+ return 1;
+ else
+ for ( w = 0; w < p->nSimWords; w++ )
+ if ( pInfo0[w] & pInfo1[w] )
+ return 1;
+ }
+ return 0;
+}
+
+
+/**Function*************************************************************
+
+ Synopsis [Finds a satisfying assignment.]
+
+ Description [Returns 1 if a sat assignment is found; 0 otherwise.]
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Gia_ManObjCheckSat_rec( Gia_Man_t * p, int iLit, Vec_Int_t * vObjs )
+{
+ int iObj = Abc_Lit2Var(iLit);
+ Gia_Obj_t * pObj = Gia_ManObj( p, iObj );
+ if ( pObj->fMark0 )
+ return pObj->fMark1 == (unsigned)Abc_LitIsCompl(iLit);
+ pObj->fMark0 = 1;
+ pObj->fMark1 = Abc_LitIsCompl(iLit);
+ Vec_IntPush( vObjs, iObj );
+ if ( Gia_ObjIsAnd(pObj) )
+ {
+ if ( pObj->fMark1 == 0 ) // node value is 1
+ {
+ if ( !Gia_ManObjCheckSat_rec( p, Gia_ObjFaninLit0(pObj, iObj), vObjs ) ) return 0;
+ if ( !Gia_ManObjCheckSat_rec( p, Gia_ObjFaninLit1(pObj, iObj), vObjs ) ) return 0;
+ }
+ else
+ {
+ if ( !Gia_ManObjCheckSat_rec( p, Abc_LitNot(Gia_ObjFaninLit0(pObj, iObj)), vObjs ) ) return 0;
+ }
+ }
+ return 1;
+}
+int Gia_ManObjCheckOverlap1( Gia_Man_t * p, int iLit0, int iLit1, Vec_Int_t * vObjs )
+{
+ Gia_Obj_t * pObj;
+ int i, Res0, Res1 = 0;
+// Gia_ManForEachObj( p, pObj, i )
+// assert( pObj->fMark0 == 0 && pObj->fMark1 == 0 );
+ Vec_IntClear( vObjs );
+ Res0 = Gia_ManObjCheckSat_rec( p, iLit0, vObjs );
+ if ( Res0 )
+ Res1 = Gia_ManObjCheckSat_rec( p, iLit1, vObjs );
+ Gia_ManForEachObjVec( vObjs, p, pObj, i )
+ pObj->fMark0 = pObj->fMark1 = 0;
+ return Res0 && Res1;
+}
+int Gia_ManObjCheckOverlap( Gia_Man_t * p, int iLit0, int iLit1, Vec_Int_t * vObjs )
+{
+ if ( Gia_ManObjCheckOverlap1( p, iLit0, iLit1, vObjs ) )
+ return 1;
+ return Gia_ManObjCheckOverlap1( p, iLit1, iLit0, vObjs );
+}
+
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////