New features to debug an test tech-mapping with choices.

abclib.dsp

@@ -427,6 +427,10 @@ SOURCE=.\src\base\abci\abcRewrite.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\base\abci\abcRpo.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\base\abci\abcRr.c
 # End Source File
 # Begin Source File
@@ -2311,6 +2315,10 @@ SOURCE=.\src\map\if\ifReduce.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\src\map\if\ifSelect.c
+# End Source File
+# Begin Source File
+
 SOURCE=.\src\map\if\ifSeq.c
 # End Source File
 # Begin Source File
@@ -3889,6 +3897,18 @@ SOURCE=.\src\bool\rsb\rsbMan.c
 # Begin Group "rpo"
 
 # PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=.\src\bool\rpo\literal.h
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\bool\rpo\rpo.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\bool\rpo\rpo.h
+# End Source File
 # End Group
 # End Group
 # Begin Group "prove"

src/map/if/ifSelect.c

+/**CFile****************************************************************
+
+  FileName    [ifSelect.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [FPGA mapping based on priority cuts.]
+
+  Synopsis    [Cut selection procedures.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - November 21, 2006.]
+
+  Revision    [$Id: ifSelect.c,v 1.00 2006/11/21 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "if.h"
+#include "sat/bsat/satSolver.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Prints the logic cone with choices.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void If_ObjConePrint_rec( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Ptr_t * vVisited )
+{
+    If_Cut_t * pCut;
+    pCut = If_ObjCutBest(pIfObj);
+    if ( If_CutDataInt(pCut) )
+        return;
+    Vec_PtrPush( vVisited, pCut );
+    // insert the worst case
+    If_CutSetDataInt( pCut, ~0 );
+    // skip in case of primary input
+    if ( If_ObjIsCi(pIfObj) )
+        return;
+    // compute the functions of the children
+    if ( pIfObj->pEquiv ) 
+    If_ObjConePrint_rec( pIfMan, pIfObj->pEquiv, vVisited );
+    If_ObjConePrint_rec( pIfMan, pIfObj->pFanin0, vVisited );
+    If_ObjConePrint_rec( pIfMan, pIfObj->pFanin1, vVisited );
+    printf( "%5d = %5d & %5d | %5d\n", pIfObj->Id, pIfObj->pFanin0->Id, pIfObj->pFanin1->Id, pIfObj->pEquiv ? pIfObj->pEquiv->Id : 0 );
+}
+void If_ObjConePrint( If_Man_t * pIfMan, If_Obj_t * pIfObj )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pLeaf;
+    int i;
+    Vec_PtrClear( pIfMan->vTemp );
+    If_ObjConePrint_rec( pIfMan, pIfObj, pIfMan->vTemp );
+    Vec_PtrForEachEntry( If_Cut_t *, pIfMan->vTemp, pCut, i )
+        If_CutSetDataInt( pCut, 0 );
+    // print the leaf variables
+    printf( "Cut " );
+    pCut = If_ObjCutBest(pIfObj);
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        printf( "%d ", pLeaf->Id );
+    printf( "\n" );
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Recursively derives local AIG for the cut.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManNodeShapeMap_rec( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Ptr_t * vVisited, Vec_Int_t * vShape )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pTemp;
+    int i, iFunc0, iFunc1;
+    // get the best cut
+    pCut = If_ObjCutBest(pIfObj);
+    // if the cut is visited, return the result
+    if ( If_CutDataInt(pCut) )
+        return If_CutDataInt(pCut);
+    // mark the node as visited
+    Vec_PtrPush( vVisited, pCut );
+    // insert the worst case
+    If_CutSetDataInt( pCut, ~0 );
+    // skip in case of primary input
+    if ( If_ObjIsCi(pIfObj) )
+        return If_CutDataInt(pCut);
+    // compute the functions of the children
+    for ( i = 0, pTemp = pIfObj; pTemp; pTemp = pTemp->pEquiv, i++ )
+    {
+        iFunc0 = If_ManNodeShapeMap_rec( pIfMan, pTemp->pFanin0, vVisited, vShape );
+        if ( iFunc0 == ~0 )
+            continue;
+        iFunc1 = If_ManNodeShapeMap_rec( pIfMan, pTemp->pFanin1, vVisited, vShape );
+        if ( iFunc1 == ~0 )
+            continue;
+        // both branches are solved
+        Vec_IntPush( vShape, pIfObj->Id );
+        Vec_IntPush( vShape, pTemp->Id );
+        If_CutSetDataInt( pCut, 1 );
+        break;
+    }
+    return If_CutDataInt(pCut);
+}
+int If_ManNodeShapeMap( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pLeaf;
+    int i, iRes;
+    // get the best cut
+    pCut = If_ObjCutBest(pIfObj);
+    assert( pCut->nLeaves > 1 );
+    // set the leaf variables
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+    {
+        assert( If_CutDataInt( If_ObjCutBest(pLeaf) ) == 0 );
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), 1 );
+    }
+    // recursively compute the function while collecting visited cuts
+    Vec_IntClear( vShape );
+    Vec_PtrClear( pIfMan->vTemp );
+    iRes = If_ManNodeShapeMap_rec( pIfMan, pIfObj, pIfMan->vTemp, vShape ); 
+    if ( iRes == ~0 )
+    {
+        Abc_Print( -1, "If_ManNodeShapeMap(): Computing local AIG has failed.\n" );
+        return 0;
+    }
+    // clean the cuts
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), 0 );
+    Vec_PtrForEachEntry( If_Cut_t *, pIfMan->vTemp, pCut, i )
+        If_CutSetDataInt( pCut, 0 );
+    return 1;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Recursively derives the local AIG for the cut.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static inline int  If_WordCountOnes( unsigned uWord )
+{
+    uWord = (uWord & 0x55555555) + ((uWord>>1) & 0x55555555);
+    uWord = (uWord & 0x33333333) + ((uWord>>2) & 0x33333333);
+    uWord = (uWord & 0x0F0F0F0F) + ((uWord>>4) & 0x0F0F0F0F);
+    uWord = (uWord & 0x00FF00FF) + ((uWord>>8) & 0x00FF00FF);
+    return  (uWord & 0x0000FFFF) + (uWord>>16);
+}
+int If_ManNodeShapeMap2_rec( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Ptr_t * vVisited, Vec_Int_t * vShape )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pTemp, * pTempBest = NULL;
+    int i, iFunc, iFunc0, iFunc1, iBest = 0;
+    // get the best cut
+    pCut = If_ObjCutBest(pIfObj);
+    // if the cut is visited, return the result
+    if ( If_CutDataInt(pCut) )
+        return If_CutDataInt(pCut);
+    // mark the node as visited
+    Vec_PtrPush( vVisited, pCut );
+    // insert the worst case
+    If_CutSetDataInt( pCut, ~0 );
+    // skip in case of primary input
+    if ( If_ObjIsCi(pIfObj) )
+        return If_CutDataInt(pCut);
+    // compute the functions of the children
+    for ( i = 0, pTemp = pIfObj; pTemp; pTemp = pTemp->pEquiv, i++ )
+    {
+        iFunc0 = If_ManNodeShapeMap2_rec( pIfMan, pTemp->pFanin0, vVisited, vShape );
+        if ( iFunc0 == ~0 )
+            continue;
+        iFunc1 = If_ManNodeShapeMap2_rec( pIfMan, pTemp->pFanin1, vVisited, vShape );
+        if ( iFunc1 == ~0 )
+            continue;
+        iFunc = iFunc0 | iFunc1;
+//        if ( If_WordCountOnes(iBest) <= If_WordCountOnes(iFunc) )
+        if ( iBest < iFunc )
+        {
+            iBest = iFunc;
+            pTempBest = pTemp;
+        }
+    }
+    if ( pTempBest )
+    {
+        Vec_IntPush( vShape, pIfObj->Id );
+        Vec_IntPush( vShape, pTempBest->Id );
+        If_CutSetDataInt( pCut, iBest );
+    }
+    return If_CutDataInt(pCut);
+}
+int If_ManNodeShapeMap2( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pLeaf;
+    int i, iRes;
+    // get the best cut
+    pCut = If_ObjCutBest(pIfObj);
+    assert( pCut->nLeaves > 1 );
+    // set the leaf variables
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), (1 << i) );
+    // recursively compute the function while collecting visited cuts
+    Vec_IntClear( vShape );
+    Vec_PtrClear( pIfMan->vTemp );
+    iRes = If_ManNodeShapeMap2_rec( pIfMan, pIfObj, pIfMan->vTemp, vShape ); 
+    if ( iRes == ~0 )
+    {
+        Abc_Print( -1, "If_ManNodeShapeMap2(): Computing local AIG has failed.\n" );
+        return 0;
+    }
+    // clean the cuts
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), 0 );
+    Vec_PtrForEachEntry( If_Cut_t *, pIfMan->vTemp, pCut, i )
+        If_CutSetDataInt( pCut, 0 );
+    return 1;
+}
+
+
+
+/**Function*************************************************************
+
+  Synopsis    [Collects logic cone with choices]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManConeCollect_rec( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Ptr_t * vVisited, Vec_Ptr_t * vCone )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pTemp;
+    int iFunc0, iFunc1;
+    int fRootAdded = 0;
+    int fNodeAdded = 0;
+    // get the best cut
+    pCut = If_ObjCutBest(pIfObj);
+    // if the cut is visited, return the result
+    if ( If_CutDataInt(pCut) )
+        return If_CutDataInt(pCut);
+    // mark the node as visited
+    Vec_PtrPush( vVisited, pCut );
+    // insert the worst case
+    If_CutSetDataInt( pCut, ~0 );
+    // skip in case of primary input
+    if ( If_ObjIsCi(pIfObj) )
+        return If_CutDataInt(pCut);
+    // compute the functions of the children
+    for ( pTemp = pIfObj; pTemp; pTemp = pTemp->pEquiv )
+    {
+        iFunc0 = If_ManConeCollect_rec( pIfMan, pTemp->pFanin0, vVisited, vCone );
+        if ( iFunc0 == ~0 )
+            continue;
+        iFunc1 = If_ManConeCollect_rec( pIfMan, pTemp->pFanin1, vVisited, vCone );
+        if ( iFunc1 == ~0 )
+            continue;
+        fNodeAdded = 1;
+        If_CutSetDataInt( pCut, 1 );
+        Vec_PtrPush( vCone, pTemp );
+        if ( fRootAdded == 0 && pTemp == pIfObj )
+            fRootAdded = 1;
+    }
+    if ( fNodeAdded && !fRootAdded )
+        Vec_PtrPush( vCone, pIfObj );
+    return If_CutDataInt(pCut);
+}
+Vec_Ptr_t * If_ManConeCollect( If_Man_t * pIfMan, If_Obj_t * pIfObj, If_Cut_t * pCut )
+{
+    Vec_Ptr_t * vCone;
+    If_Obj_t * pLeaf;
+    int i, RetValue;
+    // set the leaf variables
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+    {
+        assert( If_CutDataInt( If_ObjCutBest(pLeaf) ) == 0 );
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), 1 );
+    }
+    // recursively compute the function while collecting visited cuts
+    vCone = Vec_PtrAlloc( 100 );
+    Vec_PtrClear( pIfMan->vTemp );
+    RetValue = If_ManConeCollect_rec( pIfMan, pIfObj, pIfMan->vTemp, vCone ); 
+    assert( RetValue );
+    // clean the cuts
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        If_CutSetDataInt( If_ObjCutBest(pLeaf), 0 );
+    Vec_PtrForEachEntry( If_Cut_t *, pIfMan->vTemp, pCut, i )
+        If_CutSetDataInt( pCut, 0 );
+    return vCone;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Adding clauses.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static inline void sat_solver_add_choice( sat_solver * pSat, int iVar, Vec_Int_t * vVars )
+{
+    int * pVars = Vec_IntArray(vVars);
+    int nVars = Vec_IntSize(vVars);
+    int i, k, Lits[2], Value;
+    assert( Vec_IntSize(vVars) < Vec_IntCap(vVars) );
+    // create literals
+    for ( i = 0; i < nVars; i++ )
+        pVars[i] = Abc_Var2Lit( pVars[i], 0 );
+    pVars[i] = Abc_Var2Lit( iVar, 1 );
+    // add clause
+    Value = sat_solver_addclause( pSat, pVars, pVars + nVars + 1 );
+    assert( Value );
+    // undo literals
+    for ( i = 0; i < nVars; i++ )
+        pVars[i] = Abc_Lit2Var( pVars[i] );
+    // add !out => !in
+    Lits[0] = Abc_Var2Lit( iVar, 0 );
+    for ( i = 0; i < nVars; i++ )
+    {
+        Lits[1] = Abc_Var2Lit( pVars[i], 1 );
+        Value = sat_solver_addclause( pSat, Lits, Lits + 2 );
+        assert( Value );
+    }
+    // add excluvisity
+    for ( i = 0; i < nVars; i++ )
+    for ( k = i+1; k < nVars; k++ )
+    {
+        Lits[0] = Abc_Var2Lit( pVars[i], 1 );
+        Lits[1] = Abc_Var2Lit( pVars[k], 1 );
+        Value = sat_solver_addclause( pSat, Lits, Lits + 2 );
+        assert( Value );
+    }
+}
+static inline int  If_ObjSatVar( If_Obj_t * pIfObj )            { return If_CutDataInt(If_ObjCutBest(pIfObj));  }
+static inline void If_ObjSetSatVar( If_Obj_t * pIfObj, int v )  { If_CutSetDataInt( If_ObjCutBest(pIfObj), v ); }
+
+
+/**Function*************************************************************
+
+  Synopsis    [Recursively derives the local AIG for the cut.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void If_ManNodeShape2_rec( sat_solver * pSat, If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape )
+{
+    If_Obj_t * pTemp;
+    assert( sat_solver_var_value(pSat, If_ObjSatVar(pIfObj)) == 1 );
+    if ( pIfObj->fMark )
+        return;
+    pIfObj->fMark = 1;
+    for ( pTemp = pIfObj; pTemp; pTemp = pTemp->pEquiv )
+        if ( sat_solver_var_value(pSat, If_ObjSatVar(pTemp)+1) == 1 )
+            break;
+    assert( pTemp != NULL );
+    If_ManNodeShape2_rec( pSat, pIfMan, pTemp->pFanin0, vShape );
+    If_ManNodeShape2_rec( pSat, pIfMan, pTemp->pFanin1, vShape );
+    Vec_IntPush( vShape, pIfObj->Id );
+    Vec_IntPush( vShape, pTemp->Id );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Solve the problem of selecting choices for the given cut.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManNodeShapeSat( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape )
+{
+    sat_solver * pSat;
+    If_Cut_t * pCut;
+    Vec_Ptr_t * vCone;
+    Vec_Int_t * vFanins;
+    If_Obj_t * pObj, * pTemp;
+    int i, Lit, Status;
+
+    // get best cut
+    pCut = If_ObjCutBest(pIfObj);
+    assert( pCut->nLeaves > 1 );
+
+    // collect the cone
+    vCone = If_ManConeCollect( pIfMan, pIfObj, pCut );
+
+    // assign SAT variables
+    // EXTERNAL variable is even numbered
+    // INTERNAL variable is odd numbered
+    If_CutForEachLeaf( pIfMan, pCut, pObj, i )
+    {
+        assert( If_ObjSatVar(pObj) == 0 );
+        If_ObjSetSatVar( pObj, 2*(i+1) );
+    }
+    Vec_PtrForEachEntry( If_Obj_t *, vCone, pObj, i )
+    {
+        assert( If_ObjSatVar(pObj) == 0 );
+        If_ObjSetSatVar( pObj, 2*(i+1+pCut->nLeaves) );
+    }
+
+    // start SAT solver
+    pSat = sat_solver_new();
+    sat_solver_setnvars( pSat, 2 * (pCut->nLeaves + Vec_PtrSize(vCone) + 1) );
+
+    // add constraints
+    vFanins = Vec_IntAlloc( 100 );
+    Vec_PtrForEachEntry( If_Obj_t *, vCone, pObj, i )
+    {
+        assert( If_ObjIsAnd(pObj) );
+        Vec_IntClear( vFanins );
+        for ( pTemp = pObj; pTemp; pTemp = pTemp->pEquiv )
+            if ( If_ObjSatVar(pTemp) )
+                Vec_IntPush( vFanins, If_ObjSatVar(pTemp)+1 ); // internal
+        assert( Vec_IntSize(vFanins) > 0 );
+        sat_solver_add_choice( pSat, If_ObjSatVar(pObj), vFanins ); // external
+        assert( If_ObjSatVar(pObj) > 0 );
+//        sat_solver_add_and( pSat, If_ObjSatVar(pObj)+1, If_ObjSatVar(pObj->pFanin0), If_ObjSatVar(pObj->pFanin1), 0, 0 );
+        if ( If_ObjSatVar(pObj->pFanin0) > 0 && If_ObjSatVar(pObj->pFanin1) > 0 )
+        {
+            int Lits[2];
+            Lits[0] = Abc_Var2Lit( If_ObjSatVar(pObj)+1,        1 );
+            Lits[1] = Abc_Var2Lit( If_ObjSatVar(pObj->pFanin0), 0 );
+            Status = sat_solver_addclause( pSat, Lits, Lits + 2 );
+            assert( Status );
+
+            Lits[0] = Abc_Var2Lit( If_ObjSatVar(pObj)+1,        1 );
+            Lits[1] = Abc_Var2Lit( If_ObjSatVar(pObj->pFanin1), 0 );
+            Status = sat_solver_addclause( pSat, Lits, Lits + 2 );
+            assert( Status );
+        }
+    }
+    Vec_IntFree( vFanins );
+
+    // set cut variables to 1
+    pCut = If_ObjCutBest(pIfObj);
+    If_CutForEachLeaf( pIfMan, pCut, pObj, i )
+    {
+        Lit = Abc_Var2Lit( If_ObjSatVar(pObj), 0 ); // external
+        Status = sat_solver_addclause( pSat, &Lit, &Lit + 1 );
+        assert( Status );
+    }
+    // set output variable to 1
+    Lit = Abc_Var2Lit( If_ObjSatVar(pIfObj), 0 ); // external
+    Status = sat_solver_addclause( pSat, &Lit, &Lit + 1 );
+    assert( Status );
+
+    // solve the problem
+    Status = sat_solver_solve( pSat, NULL, NULL, 0, 0, 0, 0 );
+    assert( Status == l_True );
+
+    // mark cut nodes
+    If_CutForEachLeaf( pIfMan, pCut, pObj, i )
+    {
+        assert( pObj->fMark == 0 );
+        pObj->fMark = 1;
+    }
+
+    // select the node's shape
+    Vec_IntClear( vShape );
+    assert( pIfObj->fMark == 0 );
+    If_ManNodeShape2_rec( pSat, pIfMan, pIfObj, vShape ); 
+
+    // cleanup
+    sat_solver_delete( pSat );
+    If_CutForEachLeaf( pIfMan, pCut, pObj, i )
+    {
+        If_ObjSetSatVar( pObj, 0 );
+        pObj->fMark = 0;
+    }
+    Vec_PtrForEachEntry( If_Obj_t *, vCone, pObj, i )
+    {
+        If_ObjSetSatVar( pObj, 0 );
+        pObj->fMark = 0;
+    }
+    Vec_PtrFree( vCone );
+    return 1;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Verify that the shape is correct.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManCheckShape( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape )
+{
+    If_Cut_t * pCut;
+    If_Obj_t * pLeaf;
+    int i, Entry1, Entry2, RetValue = 1;
+    // check that the marks are not set
+    pCut = If_ObjCutBest(pIfObj);
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        assert( pLeaf->fMark == 0 );
+    // set the marks of the shape
+    Vec_IntForEachEntryDouble( vShape, Entry1, Entry2, i )
+    {
+        pLeaf = If_ManObj(pIfMan, Entry2);
+        pLeaf->pFanin0->fMark = 1;
+        pLeaf->pFanin1->fMark = 1;
+    }
+    // check that the leaves are marked
+    If_CutForEachLeaf( pIfMan, pCut, pLeaf, i )
+        if ( pLeaf->fMark == 0 )
+            RetValue = 0;
+        else
+            pLeaf->fMark = 0;
+    // clean the inner marks
+    Vec_IntForEachEntryDouble( vShape, Entry1, Entry2, i )
+    {
+        pLeaf = If_ManObj(pIfMan, Entry2);
+        pLeaf->pFanin0->fMark = 0;
+        pLeaf->pFanin1->fMark = 0;
+    }
+    return RetValue;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Recursively compute the set of nodes supported by the cut.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManNodeShape( If_Man_t * pIfMan, If_Obj_t * pIfObj, Vec_Int_t * vShape, int fExact )
+{
+    int RetValue;
+//    if ( pIfMan->nChoices == 0 )
+    {
+        RetValue = If_ManNodeShapeMap( pIfMan, pIfObj, vShape );
+        assert( RetValue );
+        if ( !fExact || If_ManCheckShape(pIfMan, pIfObj, vShape) )
+            return 1;
+    }
+//    if ( pIfObj->Id == 1254 && If_ObjCutBest(pIfObj)->nLeaves == 7 )
+//        If_ObjConePrint( pIfMan, pIfObj );
+    RetValue = If_ManNodeShapeMap2( pIfMan, pIfObj, vShape );
+    assert( RetValue );
+    RetValue = If_ManCheckShape(pIfMan, pIfObj, vShape);
+//    assert( RetValue );
+//    printf( "%d", RetValue );
+    return 1;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+

src/map/if/module.make

@@ -10,6 +10,7 @@ SRC +=  src/map/if/ifCom.c \
     src/map/if/ifMan.c \
     src/map/if/ifMap.c \
     src/map/if/ifReduce.c \
+    src/map/if/ifSelect.c \
     src/map/if/ifSeq.c \
     src/map/if/ifTime.c \
     src/map/if/ifTruth.c \