Adding new type of MUX blasting.

src/base/wlc/wlc.h

@@ -325,7 +325,7 @@ extern int            Wlc_NtkPdrAbs( Wlc_Ntk_t * p, Wlc_Par_t * pPars );
 /*=== wlcAbs2.c ========================================================*/
 extern int            Wlc_NtkAbsCore2( Wlc_Ntk_t * p, Wlc_Par_t * pPars );
 /*=== wlcBlast.c ========================================================*/
-extern Gia_Man_t *    Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nRange, int fGiaSimple, int fAddOutputs, int fBooth, int fNoCleanup, int fCreateMiter );
+extern Gia_Man_t *    Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nRange, int fGiaSimple, int fAddOutputs, int fBooth, int fNoCleanup, int fCreateMiter, int fDecMuxes );
 /*=== wlcCom.c ========================================================*/
 extern void           Wlc_SetNtk( Abc_Frame_t * pAbc, Wlc_Ntk_t * pNtk );
 /*=== wlcNtk.c ========================================================*/

src/base/wlc/wlcAbs.c

@@ -320,7 +320,7 @@ static Vec_Int_t * Wlc_NtkGetCoreSels( Gia_Man_t * pFrames, int nFrames, int fir
 
 static Gia_Man_t * Wlc_NtkUnrollWoCex(Wlc_Ntk_t * pChoice, int nFrames, int first_sel_pi, int num_sel_pis)
 {
-    Gia_Man_t * pGiaChoice = Wlc_NtkBitBlast( pChoice, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    Gia_Man_t * pGiaChoice = Wlc_NtkBitBlast( pChoice, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
     Gia_Man_t * pFrames = NULL, * pGia;
     Gia_Obj_t * pObj, * pObjRi;
     int f, i;
@@ -366,7 +366,7 @@ static Gia_Man_t * Wlc_NtkUnrollWoCex(Wlc_Ntk_t * pChoice, int nFrames, int firs
 
 static Gia_Man_t * Wlc_NtkUnrollWithCex(Wlc_Ntk_t * pChoice, Abc_Cex_t * pCex, int nbits_old_pis, int num_sel_pis, int * p_num_ppis, int sel_pi_first, int fUsePPI) 
 {
-    Gia_Man_t * pGiaChoice = Wlc_NtkBitBlast( pChoice, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    Gia_Man_t * pGiaChoice = Wlc_NtkBitBlast( pChoice, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
     int nbits_new_pis = Wlc_NtkNumPiBits( pChoice );
     int num_ppis = nbits_new_pis - nbits_old_pis - num_sel_pis;
     int num_undc_pis = Gia_ManPiNum(pGiaChoice) - nbits_new_pis;
@@ -560,7 +560,7 @@ Wlc_Ntk_t * Wlc_NtkIntroduceChoices( Wlc_Ntk_t * pNtk, Vec_Int_t * vBlacks, Vec_
 
 static Abc_Cex_t * Wlc_NtkCexIsReal( Wlc_Ntk_t * pOrig, Abc_Cex_t * pCex ) 
 {
-    Gia_Man_t * pGiaOrig = Wlc_NtkBitBlast( pOrig, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    Gia_Man_t * pGiaOrig = Wlc_NtkBitBlast( pOrig, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
     int f, i;
     Gia_Obj_t * pObj, * pObjRi;
     Abc_Cex_t * pCexReal = Abc_CexAlloc( Gia_ManRegNum(pGiaOrig), Gia_ManPiNum(pGiaOrig), pCex->iFrame + 1 );
@@ -1401,7 +1401,7 @@ Aig_Man_t * Wla_ManBitBlast( Wla_Man_t * pWla, Wlc_Ntk_t * pAbs )
     Gia_Man_t * pTemp;
     Aig_Man_t * pAig;
 
-    pWla->pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    pWla->pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
 
     // if the abstraction has flops with DC-init state,
     // new PIs were introduced by bit-blasting at the end of the PI list
@@ -1829,7 +1829,7 @@ int Wlc_NtkAbsCore( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
 
             pAbs = Wlc_NtkAbs( p, pPars, vUnmark, &vPisNew, NULL, pPars->fVerbose );
         }
-        pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0 );
+        pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
 
         // if the abstraction has flops with DC-init state,
         // new PIs were introduced by bit-blasting at the end of the PI list

src/base/wlc/wlcAbs2.c

@@ -328,7 +328,7 @@ int Wlc_NtkAbsCore2( Wlc_Ntk_t * p, Wlc_Par_t * pPars )
 
         // get abstracted GIA and the set of pseudo-PIs (vPisNew)
         pAbs = Wlc_NtkAbs( p, pPars, vUnmark, &vPisNew, pPars->fVerbose );
-        pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0 );
+        pGia = Wlc_NtkBitBlast( pAbs, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
 
         // if the abstraction has flops with DC-init state,
         // new PIs were introduced by bit-blasting at the end of the PI list

src/base/wlc/wlcBlast.c

@@ -109,6 +109,28 @@ int Wlc_NtkMuxTree_rec( Gia_Man_t * pNew, int * pCtrl, int nCtrl, Vec_Int_t * vD
     iLit1 = Wlc_NtkMuxTree_rec( pNew, pCtrl, nCtrl-1, vData, Shift + (1<<(nCtrl-1)) );
     return Gia_ManHashMux( pNew, pCtrl[nCtrl-1], iLit1, iLit0 );
 }
+int Wlc_NtkMuxTree2_nb( Gia_Man_t * pNew, int * pCtrl, int nCtrl, Vec_Int_t * vData, Vec_Int_t * vAnds )
+{
+    int iLitOr = 0, iLitAnd, m;
+    assert( Vec_IntSize(vData) == (1 << nCtrl) );
+    assert( Vec_IntSize(vAnds) == (1 << nCtrl) );
+    for ( m = 0; m < (1 << nCtrl); m++ )
+    {
+        iLitAnd = Gia_ManHashAnd( pNew, Vec_IntEntry(vAnds, m), Vec_IntEntry(vData, m) );
+        iLitOr  = Gia_ManHashOr( pNew, iLitOr, iLitAnd );
+    }
+    return iLitOr;
+}
+int Wlc_NtkMuxTree2( Gia_Man_t * pNew, int * pCtrl, int nCtrl, Vec_Int_t * vData, Vec_Int_t * vAnds, Vec_Int_t * vTemp )
+{
+    int m, iLit;
+    assert( Vec_IntSize(vData) == (1 << nCtrl) );
+    assert( Vec_IntSize(vAnds) == (1 << nCtrl) );
+    Vec_IntClear( vTemp );
+    Vec_IntForEachEntry( vAnds, iLit, m )
+        Vec_IntPush( vTemp, Abc_LitNot( Gia_ManHashAnd(pNew, iLit, Vec_IntEntry(vData, m)) ) );
+    return Abc_LitNot( Gia_ManHashAndMulti(pNew, vTemp) );
+}
 
 /**Function*************************************************************
 
@@ -868,7 +890,7 @@ void Wlc_BlastBooth( Gia_Man_t * pNew, int * pArgA, int * pArgB, int nArgA, int
   SeeAlso     []
 
 ***********************************************************************/
-Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nOutputRange, int fGiaSimple, int fAddOutputs, int fBooth, int fNoCleanup, int fCreateMiter )
+Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nOutputRange, int fGiaSimple, int fAddOutputs, int fBooth, int fNoCleanup, int fCreateMiter, int fDecMuxes )
 {
     int fVerbose = 0;
     int fUseOldMultiplierBlasting = 0;
@@ -1061,6 +1083,17 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, in
             Wlc_ObjForEachFanin( pObj, iFanin, k )
                 if ( k > 0 )
                     fSigned &= Wlc_NtkObj(p, iFanin)->Signed;
+            Vec_IntClear( vTemp1 );
+            if ( fDecMuxes )
+            {
+                for ( k = 0; k < (1 << nRange0); k++ )
+                {
+                    int iLitAnd = 1;
+                    for ( b = 0; b < nRange0; b++ )
+                        iLitAnd = Gia_ManHashAnd( pNew, iLitAnd, Abc_LitNotCond(pFans0[b], ((k >> b) & 1) == 0) );
+                    Vec_IntPush( vTemp1, iLitAnd );
+                }
+            }
             for ( b = 0; b < nRange; b++ )
             {
                 Vec_IntClear( vTemp0 );
@@ -1074,7 +1107,10 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, in
                         else // Statement 2
                             Vec_IntPush( vTemp0, b < nRange1 ? pFans1[b] : (Wlc_NtkObj(p, iFanin)->Signed? pFans1[nRange1-1] : 0) );
                     }
-                Vec_IntPush( vRes, Wlc_NtkMuxTree_rec(pNew, pFans0, nRange0, vTemp0, 0) );
+                if ( fDecMuxes )
+                    Vec_IntPush( vRes, Wlc_NtkMuxTree2(pNew, pFans0, nRange0, vTemp0, vTemp1, vTemp2) );
+                else
+                    Vec_IntPush( vRes, Wlc_NtkMuxTree_rec(pNew, pFans0, nRange0, vTemp0, 0) );
             }
         }
         else if ( pObj->Type == WLC_OBJ_SHIFT_R || pObj->Type == WLC_OBJ_SHIFT_RA ||

src/base/wlc/wlcCom.c

@@ -885,9 +885,9 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
     Wlc_Ntk_t * pNtk = Wlc_AbcGetNtk(pAbc);
     Vec_Int_t * vBoxIds = NULL;
     Gia_Man_t * pNew = NULL;
-    int c, iOutput = -1, nOutputRange = 2, fGiaSimple = 0, fAddOutputs = 0, fMulti = 0, fBooth = 0, fCreateMiter = 0, fVerbose  = 0;
+    int c, iOutput = -1, nOutputRange = 2, fGiaSimple = 0, fAddOutputs = 0, fMulti = 0, fBooth = 0, fCreateMiter = 0, fDecMuxes = 0, fVerbose  = 0;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "ORcombdvh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "ORcombdsvh" ) ) != EOF )
     {
         switch ( c )
         {
@@ -928,6 +928,9 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
         case 'd':
             fCreateMiter ^= 1;
             break;
+        case 's':
+            fDecMuxes ^= 1;
+            break;
         case 'v':
             fVerbose ^= 1;
             break;
@@ -954,7 +957,7 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
         return 0;
     }
     // transform
-    pNew = Wlc_NtkBitBlast( pNtk, vBoxIds, iOutput, nOutputRange, fGiaSimple, fAddOutputs, fBooth, 0, fCreateMiter );
+    pNew = Wlc_NtkBitBlast( pNtk, vBoxIds, iOutput, nOutputRange, fGiaSimple, fAddOutputs, fBooth, 0, fCreateMiter, fDecMuxes );
     Vec_IntFreeP( &vBoxIds );
     if ( pNew == NULL )
     {
@@ -964,7 +967,7 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
     Abc_FrameUpdateGia( pAbc, pNew );
     return 0;
 usage:
-    Abc_Print( -2, "usage: %%blast [-OR num] [-combdvh]\n" );
+    Abc_Print( -2, "usage: %%blast [-OR num] [-combdsvh]\n" );
     Abc_Print( -2, "\t         performs bit-blasting of the word-level design\n" );
     Abc_Print( -2, "\t-O num : zero-based index of the first word-level PO to bit-blast [default = %d]\n", iOutput );
     Abc_Print( -2, "\t-R num : the total number of word-level POs to bit-blast [default = %d]\n", nOutputRange );
@@ -973,6 +976,7 @@ usage:
     Abc_Print( -2, "\t-m     : toggle creating boxes for all multipliers in the design [default = %s]\n", fMulti? "yes": "no" );
     Abc_Print( -2, "\t-b     : toggle generating radix-4 Booth multipliers [default = %s]\n", fBooth? "yes": "no" );
     Abc_Print( -2, "\t-d     : toggle creating dual-output miter [default = %s]\n", fCreateMiter? "yes": "no" );
+    Abc_Print( -2, "\t-s     : toggle creating decoded MUXes [default = %s]\n", fDecMuxes? "yes": "no" );
     Abc_Print( -2, "\t-v     : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
     Abc_Print( -2, "\t-h     : print the command usage\n");
     return 1;

src/base/wlc/wlcGraft.c

@@ -210,7 +210,7 @@ Wlc_Ntk_t * Wlc_NtkGraftMulti( Wlc_Ntk_t * p, int fVerbose )
     Gia_Obj_t * pObj;
     Vec_Int_t * vObjsLHS = Wlc_NtkCollectObjs( p, 0, &nMultiLHS );
     Vec_Int_t * vObjsRHS = Wlc_NtkCollectObjs( p, 1, &nMultiRHS );
-    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, -1, 0, 0, 0, 0, 1, 0 );
+    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, -1, 0, 0, 0, 0, 1, 0, 0 );
     Vec_Mem_t * vTtMem = Vec_MemAlloc( nWords, 10 );
     Vec_MemHashAlloc( vTtMem, 10000 );
 
@@ -540,7 +540,7 @@ int Sbc_ManWlcNodes( Wlc_Ntk_t * pNtk, Gia_Man_t * p, Vec_Int_t * vGia2Out, int
 void Sbc_ManDetectMultTest( Wlc_Ntk_t * pNtk, int fVerbose )
 {
     extern Vec_Int_t * Sdb_StoComputeCutsDetect( Gia_Man_t * pGia );
-    Gia_Man_t * p = Wlc_NtkBitBlast( pNtk, NULL, -1, 0, 0, 0, 0, 1, 0 );
+    Gia_Man_t * p = Wlc_NtkBitBlast( pNtk, NULL, -1, 0, 0, 0, 0, 1, 0, 0 );
     Vec_Int_t * vIns, * vGia2Out;
     int iObjFound = -1;
 //    Gia_Obj_t * pObj; int i;

src/base/wlc/wlcReadVer.c

@@ -1292,7 +1292,7 @@ void Io_ReadWordTest( char * pFileName )
         return;
     Wlc_WriteVer( pNtk, "test.v", 0, 0 );
 
-    pNew = Wlc_NtkBitBlast( pNtk, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    pNew = Wlc_NtkBitBlast( pNtk, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
     Gia_AigerWrite( pNew, "test.aig", 0, 0 );
     Gia_ManStop( pNew );
 

src/base/wlc/wlcSim.c

@@ -129,7 +129,7 @@ Vec_Ptr_t * Wlc_NtkSimulate( Wlc_Ntk_t * p, Vec_Int_t * vNodes, int nWords, int
 {
     Gia_Obj_t * pObj; 
     Vec_Ptr_t * vOne, * vRes;
-    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, -1, 0, 0, 0, 0, 0, 0 );
+    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, -1, 0, 0, 0, 0, 0, 0, 0 );
     Wlc_Obj_t * pWlcObj;
     int f, i, k, w, nBits, Counter = 0;
     // allocate simulation info for one timeframe