Bug fix: unhandled & symbol in Liberty formula representation

src/map/amap/amapParse.c

@@ -37,6 +37,7 @@ ABC_NAMESPACE_IMPL_START
 #define AMAP_EQN_SYM_NEG     '!'   // negation before the variable
 #define AMAP_EQN_SYM_NEGAFT  '\''  // negation after the variable
 #define AMAP_EQN_SYM_AND     '*'   // logic AND
+#define AMAP_EQN_SYM_AND2    '&'   // logic AND
 #define AMAP_EQN_SYM_XOR     '^'   // logic XOR
 #define AMAP_EQN_SYM_OR      '+'   // logic OR
 #define AMAP_EQN_SYM_OR2     '|'   // logic OR
@@ -184,6 +185,7 @@ Hop_Obj_t * Amap_ParseFormula( FILE * pOutput, char * pFormInit, Vec_Ptr_t * vVa
                 Vec_PtrPush( pStackFn, Hop_Not( (Hop_Obj_t *)Vec_PtrPop(pStackFn) ) );
             break;
         case AMAP_EQN_SYM_AND:
+        case AMAP_EQN_SYM_AND2:
         case AMAP_EQN_SYM_OR:
         case AMAP_EQN_SYM_OR2:
         case AMAP_EQN_SYM_XOR:
@@ -193,7 +195,7 @@ Hop_Obj_t * Amap_ParseFormula( FILE * pOutput, char * pFormInit, Vec_Ptr_t * vVa
                 Flag = AMAP_EQN_FLAG_ERROR; 
                 break;
             }
-            if ( *pTemp == AMAP_EQN_SYM_AND )
+            if ( *pTemp == AMAP_EQN_SYM_AND || *pTemp == AMAP_EQN_SYM_AND2 )
                 Vec_IntPush( pStackOp, AMAP_EQN_OPER_AND );
             else if ( *pTemp == AMAP_EQN_SYM_OR || *pTemp == AMAP_EQN_SYM_OR2 )
                 Vec_IntPush( pStackOp, AMAP_EQN_OPER_OR );
@@ -252,7 +254,7 @@ Hop_Obj_t * Amap_ParseFormula( FILE * pOutput, char * pFormInit, Vec_Ptr_t * vVa
             // scan the next name
             for ( i = 0; pTemp[i] && 
                          pTemp[i] != ' ' && pTemp[i] != '\t' && pTemp[i] != '\r' && pTemp[i] != '\n' &&
-                         pTemp[i] != AMAP_EQN_SYM_AND && pTemp[i] != AMAP_EQN_SYM_OR && pTemp[i] != AMAP_EQN_SYM_OR2 && 
+                         pTemp[i] != AMAP_EQN_SYM_AND && pTemp[i] != AMAP_EQN_SYM_AND2 && pTemp[i] != AMAP_EQN_SYM_OR && pTemp[i] != AMAP_EQN_SYM_OR2 && 
                          pTemp[i] != AMAP_EQN_SYM_XOR && pTemp[i] != AMAP_EQN_SYM_NEGAFT && pTemp[i] != AMAP_EQN_SYM_CLOSE; 
                   i++ )
               {

src/map/mio/mioFunc.c

@@ -28,7 +28,8 @@ ABC_NAMESPACE_IMPL_START
 
 // these symbols (and no other) can appear in the formulas
 #define MIO_SYMB_AND    '*'
-#define MIO_SYMB_OR1    '+'
+#define MIO_SYMB_AND2   '&'
+#define MIO_SYMB_OR     '+'
 #define MIO_SYMB_OR2    '|'
 #define MIO_SYMB_XOR    '^'
 #define MIO_SYMB_NOT    '!'
@@ -246,10 +247,12 @@ int Mio_GateCollectNames( char * pFormula, char * pPinNames[] )
 
     // remove the non-name symbols
     for ( pTemp = Buffer; *pTemp; pTemp++ )
-        if ( *pTemp == MIO_SYMB_AND || *pTemp == MIO_SYMB_OR1 || *pTemp == MIO_SYMB_OR2 
-          || *pTemp == MIO_SYMB_XOR || *pTemp == MIO_SYMB_NOT || *pTemp == MIO_SYMB_OPEN 
-          || *pTemp == MIO_SYMB_CLOSE || *pTemp == MIO_SYMB_AFTNOT )
-            *pTemp = ' ';
+        if ( *pTemp == MIO_SYMB_AND  || *pTemp == MIO_SYMB_AND2   || 
+             *pTemp == MIO_SYMB_OR   || *pTemp == MIO_SYMB_OR2    || 
+             *pTemp == MIO_SYMB_XOR  || 
+             *pTemp == MIO_SYMB_NOT  || *pTemp == MIO_SYMB_AFTNOT ||
+             *pTemp == MIO_SYMB_OPEN || *pTemp == MIO_SYMB_CLOSE )
+             *pTemp = ' ';
 
     // save the names
     nPins = 0;