gcc/testsuite/gcc.dg/uninit-17-O0.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wuninitialized" } */
   3
   4 typedef _Complex float C;
   5 C foo(int cond)
   6 {
   7   C f;
   8   __imag__ f = 0;
   9   if (cond)
  10     {
  11       __real__ f = 1;
  12       return f;
  13     }
  14   return f;
  15 }