gcc/testsuite/gcc.dg/vect/pr65310.c

   1 /* { dg-do compile } */
   2
   3 struct a
   4 {
   5   int a[100];
   6 };
   7 typedef struct a b __attribute__ ((aligned (32)));
   8 typedef struct a c __attribute__ ((aligned (4)));
   9
  10 int t(b *a)
  11 {
  12   int i;
  13   c *ptr = a;
  14   for (i=0;i<100;i++)
  15     ptr->a[i]++;
  16 }
  17
  18 /* The memory access is through a pointer of type c which means
  19    *ptr is not aligned.  */
  20
  21 /* { dg-final { scan-tree-dump "can't force alignment" "vect" { xfail vect_element_align_preferred } } } */
  22 /* { dg-final { scan-tree-dump-not "misalign = 0" "vect" { xfail vect_element_align_preferred } } } */