gcc/testsuite/gcc.dg/pr67512.c

   1 /* PR middle-end/67512 */
   2 /* { dg-do compile }  */
   3 /* { dg-options "-O -Wuninitialized" } */
   4
   5 extern int fn2 (void);
   6 extern int fn3 (int);
   7 void
   8 fn1 (void)
   9 {
  10   int z, m;
  11   if (1 & m) /* { dg-warning "is used uninitialized" } */
  12     z = fn2 ();
  13   z = 1 == m ? z : 2 == m;
  14   fn3 (z);
  15 }