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 void abort (void);
   6 void exit (int);
   7
   8 typedef __complex__ float cf;
   9 struct x { char c; cf f; } __attribute__ ((__packed__));
  10 extern void f2 (struct x*);
  11 extern void f1 (void);
  12 int
  13 main (void)
  14 {
  15   f1 ();
  16   exit (0);
  17 }
  18
  19 void
  20 f1 (void)
  21 {
  22   struct x s;
  23   s.f = 1;
  24   s.c = 42;
  25   f2 (&s);
  26 }
  27
  28 void
  29 f2 (struct x *y)
  30 {
  31   if (y->f != 1 || y->c != 42)
  32     abort ();
  33 }