gcc/testsuite/gcc.dg/20010822-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-Os" } */
   3
   4 extern void abort (void);
   5
   6 void foo (unsigned long x)
   7 {
   8 }
   9
  10 typedef struct a {
  11   volatile unsigned int a1, a2, a3, a4, a5;
  12 } *A;
  13 typedef struct {
  14   volatile unsigned int b1, b2, b3, b4, b5;
  15 } *B;
  16 struct C {
  17   void *c1, *c2;
  18   A c3;
  19   unsigned char c4;
  20 };
  21
  22 void
  23 bar (struct C *c, unsigned int *d)
  24 {
  25   *d = *d | 1;
  26   ((c->c4 >= 2)
  27    ? (*(volatile unsigned int *) ((void *)(&((A)c->c3)->a5)) = *d)
  28    : (*(volatile unsigned int *) ((void *)(&((B)c->c3)->b5)) = *d));
  29
  30   foo (50);
  31 }
  32
  33 int main (void)
  34 {
  35   struct a a;
  36   struct C c;
  37   unsigned int d = 8;
  38   c.c3 = &a;
  39   c.c4 = 0;
  40   bar (&c, &d);
  41   if (a.a5 != 9)
  42     abort ();
  43   return 0;
  44 }