gcc/testsuite/gcc.dg/uninit-18.c

   1 /* { dg-do compile }  */
   2 /* { dg-options "-O -Wuninitialized" } */
   3
   4 char *foo(int bar, char *baz)
   5 {
   6   char *tmp;
   7
   8   if (bar & 3)
   9     tmp = baz;
  10
  11   switch (bar) {
  12   case 1:
  13     tmp[5] = 7;    /* { dg-bogus "may be used uninitialized" } */
  14     break;
  15   case 2:
  16     tmp[11] = 15;  /* { dg-bogus "may be used uninitialized" } */
  17     break;
  18   default:
  19     tmp = 0;
  20     break;
  21   }
  22
  23   return tmp;      /* { dg-bogus "may be used uninitialized" } */
  24 }