gcc/testsuite/gcc.dg/uninit-15-O0.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wuninitialized" } */
   3
   4 /* XFAIL for now, the uninitialized pass runs before inlining only at -O0.  */
   5
   6 inline int __attribute__((always_inline))
   7 foo (int i)
   8 {
   9     if (i) return 1; /* { dg-warning "is used uninitialized" {} { xfail *-*-* } } */
  10     return 0;
  11 }
  12
  13 void baz();
  14
  15 void bar()
  16 {
  17     int j;           /* { dg-message "was declared here" {} { xfail *-*-* } } */
  18     for (; foo(j); ++j)
  19         baz();
  20 }