old-autovect-branch/gcc/testsuite/gcc.dg/vect/vect-77.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 8
   7 #define OFF 8
   8
   9 /* Check handling of accesses for which the "initial condition" -
  10    the expression that represents the first location accessed - is
  11    more involved than just an ssa_name.  */
  12
  13 int ib[N+OFF] __attribute__ ((__aligned__(16))) = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10, 14, 22, 26, 34};
  14
  15 int main1 (int *ib, int off)
  16 {
  17   int i;
  18   int ia[N];
  19
  20   for (i = 0; i < N; i++)
  21     {
  22       ia[i] = ib[i+off];
  23     }
  24
  25
  26   /* check results:  */
  27   for (i = 0; i < N; i++)
  28     {
  29      if (ia[i] != ib[i+off])
  30         abort ();
  31     }
  32
  33   return 0;
  34 }
  35
  36 int main (void)
  37 {
  38   check_vect ();
  39
  40   main1 (ib, 8);
  41   return 0;
  42 }
  43
  44 /* For targets that don't support misaligned loads we version for the load.
  45    (The store is aligned).  */
  46
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  48 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { vect_no_align } } } } */
  49 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */
  50 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target vect_no_align } } } */
  51 /* { dg-final { cleanup-tree-dump "vect" } } */
  52