gcc/testsuite/gcc.dg/vect/vect-72.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-add-options bind_pic_locally } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 128
   8
   9 /* unaligned load.  */
  10
  11 char ia[N];
  12 char ib[N+1];
  13
  14 __attribute__ ((noinline))
  15 int main1 ()
  16 {
  17   int i;
  18
  19   for (i=0; i < N+1; i++)
  20     {
  21       ib[i] = i;
  22       if (i%3 == 0)
  23         ib[i] = 5;
  24       /* Avoid vectorization.  */
  25       __asm__ volatile ("" : : : "memory");
  26     }
  27
  28   for (i = 1; i < N+1; i++)
  29     {
  30       ia[i-1] = ib[i];
  31     }
  32
  33   /* check results:  */
  34   for (i = 1; i <= N; i++)
  35     {
  36       if (ia[i-1] != ib[i])
  37         abort ();
  38     }
  39
  40   return 0;
  41 }
  42
  43 int main (void)
  44 {
  45   check_vect ();
  46
  47   return main1 ();
  48 }
  49
  50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { vect_no_align && { ! vect_hw_misalign } } } } } */
  51 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { ! vect_unaligned_possible } } } } */
  52 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */