gcc/testsuite/gcc.dg/vect/slp-25.c

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
   3 /* { dg-require-effective-target vect_int } */
   4 /* { dg-add-options bind_pic_locally } */
   5
   6 #include <stdarg.h>
   7 #include "tree-vect.h"
   8
   9 #define N 128
  10
  11 /* Unaligned stores.  */
  12
  13 int ia[N+2];
  14 short sa[N+2];
  15
  16 int main1 (int n)
  17 {
  18   int i;
  19
  20   for (i = 1; i <= N/2; i++)
  21     {
  22       ia[2*i] = 25;
  23       ia[2*i + 1] = 5;
  24     }
  25
  26   /* check results:  */
  27 #pragma GCC novector
  28   for (i = 1; i <= N/2; i++)
  29     {
  30       if (ia[2*i] != 25
  31           || ia[2*i + 1] != 5)
  32         abort ();
  33     }
  34
  35   for (i = 1; i <= n/2; i++)
  36     {
  37       sa[2*i] = 25;
  38       sa[2*i + 1] = 5;
  39     }
  40
  41   /* check results:  */
  42 #pragma GCC novector
  43   for (i = 1; i <= n/2; i++)
  44     {
  45       if (sa[2*i] != 25
  46           || sa[2*i + 1] != 5)
  47         abort ();
  48     }
  49
  50
  51   return 0;
  52 }
  53
  54 int main (void)
  55 {
  56
  57   check_vect ();
  58
  59   return main1 (N);
  60 }
  61
  62 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect"  } } */
  63 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  64 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 2 "vect" { xfail { { ! vect_unaligned_possible } || { ! vect_natural_alignment } } } } } */