gcc/testsuite/gcc.dg/uninit-19.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -Wuninitialized" } */
   3
   4 int a, l, m;
   5 float *b;
   6 float c, d, e, g, h;
   7 unsigned char i, k;
   8 void
   9 fn1 (int p1, float *f1, float *f2, float *f3, unsigned char *c1, float *f4,
  10      unsigned char *c2, float *p10)
  11 {
  12   if (p1 & 8)
  13     b[3] = p10[a];  /* 13.  */
  14 }
  15
  16 void
  17 fn2 ()
  18 {
  19   float *n;
  20   if (l & 6)
  21     n = &c + m;
  22   fn1 (l, &d, &e, &g, &i, &h, &k, n);  /* 22.  */
  23 }
  24
  25 /* { dg-warning "may be used uninitialized" "" { target nonpic } 13 } */
  26 /* { dg-warning "may be used uninitialized" "" { target { ! nonpic } } 22 } */