gcc/testsuite/gcc.c-torture/execute/20020227-1.c

   1 /* This testcase failed on mmix-knuth-mmixware.  Problem was with storing
   2    to an unaligned mem:SC, gcc tried doing it by parts from a (concat:SC
   3    (reg:SF 293) (reg:SF 294)).  */
   4
   5 typedef __complex__ float cf;
   6 struct x { char c; cf f; } __attribute__ ((__packed__));
   7 extern void f2 (struct x*);
   8 extern void f1 (void);
   9 int
  10 main (void)
  11 {
  12   f1 ();
  13   exit (0);
  14 }
  15
  16 void
  17 f1 (void)
  18 {
  19   struct x s;
  20   s.f = 1;
  21   s.c = 42;
  22   f2 (&s);
  23 }
  24
  25 void
  26 f2 (struct x *y)
  27 {
  28   if (y->f != 1 || y->c != 42)
  29     abort ();
  30 }