From fdf0fb27837102be168f2743101d3fa59f799050 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Tue, 2 Jul 2019 23:39:53 +0300
Subject: Adding command &permute.

---
 src/aig/gia/giaDup.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 src/base/abci/abc.c  | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+)

diff --git a/src/aig/gia/giaDup.c b/src/aig/gia/giaDup.c
index ae38a95a..fe0ed932 100644
--- a/src/aig/gia/giaDup.c
+++ b/src/aig/gia/giaDup.c
@@ -925,6 +925,51 @@ Gia_Man_t * Gia_ManDupPermFlopGap( Gia_Man_t * p, Vec_Int_t * vFfMask )
     return pSpread;
 }
 
+/**Function*************************************************************
+
+  Synopsis    [Appends second AIG without any changes.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Gia_Man_t * Gia_ManDupPiPerm( Gia_Man_t * p )
+{
+    Gia_Man_t * pNew, * pOne;
+    Gia_Obj_t * pObj;
+    int i;
+    Gia_ManRandom(1);
+    pNew = Gia_ManStart( Gia_ManObjNum(p) );
+    pNew->pName = Abc_UtilStrsav( p->pName );
+    pNew->pSpec = Abc_UtilStrsav( p->pSpec );
+    Gia_ManHashAlloc( pNew );
+    Gia_ManConst0(p)->Value = 0;
+    Gia_ManForEachCi( p, pObj, i )
+        pObj->Value = Gia_ManAppendCi( pNew );
+    Gia_ManForEachAnd( p, pObj, i )
+    {
+        int iLit0 = Gia_ObjFanin0Copy(pObj);
+        int iLit1 = Gia_ObjFanin1Copy(pObj);
+        int iPlace0 = Gia_ManRandom(0) % Gia_ManCiNum(p);
+        int iPlace1 = Gia_ManRandom(0) % Gia_ManCiNum(p);
+        if ( Abc_Lit2Var(iLit0) <= Gia_ManCiNum(p) )
+            iLit0 = Abc_Var2Lit( iPlace0+1, Abc_LitIsCompl(iLit0) );
+        if ( Abc_Lit2Var(iLit1) <= Gia_ManCiNum(p) )
+            iLit1 = Abc_Var2Lit( iPlace1+1, Abc_LitIsCompl(iLit1) );
+        pObj->Value = Gia_ManHashAnd( pNew, iLit0, iLit1 );
+    }
+    Gia_ManForEachCo( p, pObj, i )
+        pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
+    Gia_ManHashStop( pNew );
+    Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) );
+    pNew = Gia_ManCleanup( pOne = pNew );
+    Gia_ManStop( pOne );
+    return pNew;
+}
+
 /**Function*************************************************************
 
   Synopsis    [Appends second AIG without any changes.]
diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index 63ea7050..3d532619 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -475,6 +475,7 @@ static int Abc_CommandAbc9Dch                ( Abc_Frame_t * pAbc, int argc, cha
 static int Abc_CommandAbc9Rpm                ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9BackReach          ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Posplit            ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandAbc9Permute            ( Abc_Frame_t * pAbc, int argc, char ** argv );
 #ifdef ABC_USE_CUDD
 static int Abc_CommandAbc9ReachM             ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9ReachP             ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -1174,6 +1175,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
     Cmd_CommandAdd( pAbc, "ABC9",         "&rpm",          Abc_CommandAbc9Rpm,          0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&back_reach",   Abc_CommandAbc9BackReach,    0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&posplit",      Abc_CommandAbc9Posplit,      0 );
+    Cmd_CommandAdd( pAbc, "ABC9",         "&permute",      Abc_CommandAbc9Permute,      0 );
 #ifdef ABC_USE_CUDD
     Cmd_CommandAdd( pAbc, "ABC9",         "&reachm",       Abc_CommandAbc9ReachM,       0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&reachp",       Abc_CommandAbc9ReachP,       0 );
@@ -39715,6 +39717,53 @@ usage:
     return 1;
 }
 
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandAbc9Permute( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    extern Gia_Man_t * Gia_ManDupPiPerm( Gia_Man_t * p );
+    Gia_Man_t * pTemp;
+    int c, fVerbose = 0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'v':
+            fVerbose ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( pAbc->pGia == NULL )
+    {
+        Abc_Print( -1, "Abc_CommandAbc9Posplit(): There is no AIG.\n" );
+        return 1;
+    }
+    pTemp = Gia_ManDupPiPerm( pAbc->pGia );
+    Abc_FrameUpdateGia( pAbc, pTemp );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: &permute [-vh]\n" );
+    Abc_Print( -2, "\t         permutes primary inputs\n" );
+    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;
+}
+
 #ifdef ABC_USE_CUDD
 
 /**Function*************************************************************
-- 
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