gcc/testsuite/gcc.dg/torture/pr33870.c

   1 /* { dg-do run } */
   2
   3 struct X {
   4   int i;
   5   int a[4];
   6 } m;
   7
   8 int a[4];
   9
  10 int __attribute__((noinline)) foo(int b)
  11 {
  12   int (*p)[4] = b ? &a : &m.a;
  13   a[3] = 0;
  14   (*p)[3] = 1;
  15   return (*p)[3] + (*p)[2] + (*p)[1] + a[0] + a[3];
  16 }
  17
  18 extern void abort (void);
  19
  20 int main()
  21 {
  22   int i;
  23   for (i = 0; i < 4; ++i)
  24     a[i] = 0;
  25   if (foo(1) != 2)
  26     abort ();
  27   return 0;
  28 }
  29