From c912875261ae9da7e6ffeeb3466b7d467ee4b010 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Fri, 17 Jun 2016 20:21:39 -0700
Subject: New command 'phase_map'.

---
 src/base/abci/abc.c   | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/opt/sfm/sfmArea.c |  2 +-
 2 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index e067756f..699b5ec1 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -242,6 +242,7 @@ static int Abc_CommandRecMerge3              ( Abc_Frame_t * pAbc, int argc, cha
 
 static int Abc_CommandMap                    ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAmap                   ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandPhaseMap               ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandUnmap                  ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAttach                 ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandSuperChoice            ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -876,6 +877,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
 
     Cmd_CommandAdd( pAbc, "SC mapping",   "map",           Abc_CommandMap,              1 );
     Cmd_CommandAdd( pAbc, "SC mapping",   "amap",          Abc_CommandAmap,             1 );
+    Cmd_CommandAdd( pAbc, "SC mapping",   "phase_map",     Abc_CommandPhaseMap,         1 );
     Cmd_CommandAdd( pAbc, "SC mapping",   "unmap",         Abc_CommandUnmap,            1 );
     Cmd_CommandAdd( pAbc, "SC mapping",   "attach",        Abc_CommandAttach,           1 );
     Cmd_CommandAdd( pAbc, "SC mapping",   "superc",        Abc_CommandSuperChoice,      1 );
@@ -15565,6 +15567,59 @@ usage:
     return 1;
 }
 
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandPhaseMap( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    extern void Abc_NtkChangePerform( Abc_Ntk_t * pNtk, int fVerbose );
+    Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);
+    int fVerbose = 0, c;
+    // set defaults
+    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 ( pNtk == NULL )
+    {
+        Abc_Print( -1, "Empty network.\n" );
+        return 1;
+    }
+    if ( !Abc_NtkHasMapping(pNtk) )
+    {
+        Abc_Print( -1, "Cannot unmap the network that is not mapped.\n" );
+        return 1;
+    }
+    Abc_NtkChangePerform( pNtk, fVerbose );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: phase_map [-vh]\n" );
+    Abc_Print( -2, "\t        tries to replace each gate by its complement (area-only)\n" );
+    Abc_Print( -2, "\t-v    : toggles verbose output [default = %s]\n", fVerbose? "yes": "no" );
+    Abc_Print( -2, "\t-h    : print the command usage\n");
+    return 1;
+}
+
 
 /**Function*************************************************************
 
diff --git a/src/opt/sfm/sfmArea.c b/src/opt/sfm/sfmArea.c
index f957438e..68a8c142 100644
--- a/src/opt/sfm/sfmArea.c
+++ b/src/opt/sfm/sfmArea.c
@@ -295,7 +295,7 @@ void Abc_ObjChangePerform( Abc_Obj_t * pObj, Vec_Int_t * vInfo, Vec_Int_t * vFir
         assert( Abc_ObjFanoutNum(pObj) == 0 );
         Abc_NtkDeleteObj(pObj);
         pObj = pFanin;
-        assert( fUseInv == 0 );
+//        assert( fUseInv == 0 );
     }
     else
         Abc_ObjChangeUpdate( pObj, iFanin, pCells, pNodeInfo, vTemp );
-- 
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