int k=50;
void main()
{
   if(0) k = __in;
   __out k;
}

2

   top:top top sqmain

.  _k:50

_main:
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; bp 0
   bp; sp bp
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; t1 0
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; t2 0

   t2; c1 Z; Z t2 ?+3; Z Z ?+9; Z; c1 t2; c1 t2
   Z t2 l1
   t1; (-1) t1
   _k; t1 Z; Z _k; Z
l1:

   _k (-1)

   ?+8; sp ?+4; t2; 0 t2; inc sp
   ?+8; sp ?+4; t1; 0 t1; inc sp
   sp; bp sp
   ?+8; sp ?+4; bp; 0 bp; inc sp
   ?+8; sp ?+4; ?+7; 0 ?+3; Z Z 0

sqmain:
   dec sp; ?+11; sp ?+7; ?+6; sp ?+2; 0
   ?+6; sp ?+2; ?+2 0 _main; . ?; inc sp

   Z Z (-1)

. c1:0

. t1:0 t2:0

. inc:-1 Z:0 dec:1 ax:0 bp:0 sp:-sp

Root (mg_22_2.hsq:7)
   Declaration (mg_22_2.hsq:1)
      Keyword [int] (mg_22_2.hsq:1)
      Declarator [=] (mg_22_2.hsq:1)
         Id [k] (mg_22_2.hsq:1)
         Const [50] (mg_22_2.hsq:1)
   Function:0 [main] (mg_22_2.hsq:2)
      Keyword [void] (mg_22_2.hsq:2)
      Param-type-list (mg_22_2.hsq:2)
      Block (mg_22_2.hsq:3)
         Keyword-statement [if] (mg_22_2.hsq:4)
            Equality [!=] (mg_22_2.hsq:4)
               Const [0] (mg_22_2.hsq:4)
               Const [0] (mg_22_2.hsq:4)
            Assignment [=] (mg_22_2.hsq:4)
               Variable [k] (mg_22_2.hsq:4) =:1
               OperatorIO [__in] (mg_22_2.hsq:4)
         OperatorIO [__out] (mg_22_2.hsq:5)
            Variable [k] (mg_22_2.hsq:5) =:1