gcc/testsuite/gcc.dg/fold-cvect.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O" } */
   3
   4 extern void abort (void);
   5
   6 /* We should fold all reads from xconstant and eliminate it, removing
   7    the reference to blah which cannot be resolved at link time.  */
   8 extern int blah;
   9
  10 typedef int v4si __attribute__((vector_size(16)));
  11
  12 static const struct {
  13     int *y;
  14     const v4si x[2] __attribute__((aligned(32)));
  15 } xconstant = { &blah, { { 0, 1, 2, 3 }, { 2, 3, 4, 5 } } };
  16
  17 int main()
  18 {
  19   if (sizeof (int) != 4)
  20     return 0;
  21   if (*(int *)&xconstant.x[0][0] != 0)
  22     abort ();
  23   if (*(int *)&xconstant.x[0][1] != 1)
  24     abort ();
  25   if (*(int *)&xconstant.x[0][2] != 2)
  26     abort ();
  27   if (*(int *)&xconstant.x[0][3] != 3)
  28     abort ();
  29   if (*(int *)&xconstant.x[1][0] != 2)
  30     abort ();
  31   if (*(int *)&xconstant.x[1][1] != 3)
  32     abort ();
  33   if (*(int *)&xconstant.x[1][2] != 4)
  34     abort ();
  35   if (*(int *)&xconstant.x[1][3] != 5)
  36     abort ();
  37   return 0;
  38 }