gcc/testsuite/gcc.dg/torture/pr53663-3.c

   1 /* { dg-do run } */
   2
   3 extern void abort (void);
   4
   5 union u
   6 {
   7   int i;
   8   float f;
   9 } v;
  10
  11 float foo (float *f)
  12 {
  13   *f = 1;
  14   v.i = 0;
  15   v.f = 0.;
  16   return *f;
  17 }
  18
  19 int main()
  20 {
  21   if (foo (&v.f) != 0.)
  22     abort ();
  23   return 0;
  24 }