gcc/testsuite/gcc.dg/pr29091.c

   1 /* PR c/29091 */
   2 /* { dg-do run } */
   3 /* { dg-options "-O2" } */
   4
   5 extern void abort (void);
   6
   7 __attribute__ ((vector_size (sizeof (int) * 4))) int a = { 1, 2 };
   8 int d = 3;
   9 __attribute__ ((vector_size (sizeof (int) * 4))) int b = { 4, 5, 6 };
  10 int e = 7;
  11 __attribute__ ((vector_size (sizeof (int) * 4))) int c = { };
  12
  13 int
  14 main (void)
  15 {
  16   int *p = (int *) &a;
  17   if (p[0] != 1)
  18     abort ();
  19   if (p[1] != 2)
  20     abort ();
  21   if (p[2] != 0)
  22     abort ();
  23   if (p[3] != 0)
  24     abort ();
  25   p = (int *) &b;
  26   if (p[0] != 4)
  27     abort ();
  28   if (p[1] != 5)
  29     abort ();
  30   if (p[2] != 6)
  31     abort ();
  32   if (p[3] != 0)
  33     abort ();
  34   p = (int *) &c;
  35   if (p[0] != 0)
  36     abort ();
  37   if (p[1] != 0)
  38     abort ();
  39   if (p[2] != 0)
  40     abort ();
  41   if (p[3] != 0)
  42     abort ();
  43   return 0;
  44 }