sdcc/support/valdiag/tests/bug-895992.c

   1
   2 /* bug-895992.c
   3
   4    Life Range problem with
   5    - uninitialized variable
   6    - loop
   7    - conditional block
   8  */
   9
  10 #ifdef TEST1
  11 char p0;
  12
  13 void wait (void);
  14
  15 void foo(void)
  16 {
  17   unsigned char number;
  18   unsigned char start = 1;
  19   unsigned char i;
  20
  21   do
  22     {
  23       for (i = 1; i > 0 ; i--)
  24         wait();
  25       if (start)
  26         {
  27           number = p0;
  28           start = 0;
  29         }
  30       number--;         /* WARNING(SDCC) */
  31     }
  32   while (number != 0);
  33 }
  34 #endif