gcc/testsuite/gcc.dg/vect/vect-109.c

   1 /* { dg-skip-if "" { vect_no_align } } */
   2 /* { dg-require-effective-target vect_int } */
   3 /* { dg-add-options bind_pic_locally } */
   4
   5 #include <stdarg.h>
   6 #include "tree-vect.h"
   7
   8 #define N 32
   9
  10 short sa[N];
  11 short sc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
  12                 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
  13 short sb[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
  14                 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
  15 int ia[N];
  16 int ic[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
  17                0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  18 int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
  19                0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  20
  21 __attribute__ ((noinline))
  22 int main1 (int n)
  23 {
  24   int i;
  25
  26   /* Multiple types with different sizes, used in idependent
  27      copmutations. Vectorizable.  */
  28   for (i = 0; i < n; i++)
  29     {
  30       sa[i+2] = sb[i] + sc[i];
  31       ia[i+1] = ib[i] + ic[i];
  32     }
  33
  34   /* check results:  */
  35   for (i = 0; i < n; i++)
  36     {
  37       if (sa[i+2] != sb[i] + sc[i] || ia[i+1] != ib[i] + ic[i])
  38         abort ();
  39     }
  40
  41   return 0;
  42 }
  43
  44 int main2 (int n)
  45 {
  46   int i;
  47
  48   /* Multiple types with different sizes, used in idependent
  49      copmutations. Vectorizable.  */
  50   for (i = 0; i < n; i++)
  51     {
  52       ia[i+1] = ib[i] + ic[i];
  53       sa[i] = sb[i] + sc[i];
  54     }
  55
  56   /* check results:  */
  57   for (i = 0; i < n; i++)
  58     {
  59       if (sa[i] != sb[i] + sc[i] || ia[i+1] != ib[i] + ic[i])
  60         abort ();
  61     }
  62
  63   return 0;
  64 }
  65
  66
  67 int main (void)
  68 {
  69   check_vect ();
  70
  71   main1 (N-2);
  72   main2 (N-1);
  73
  74   return 0;
  75 }
  76
  77 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target vect_element_align } } } */
  78 /* { dg-final { scan-tree-dump-times "not vectorized: unsupported unaligned store" 2 "vect" { xfail vect_element_align } } } */
  79 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 3 "vect" { target vect_element_align xfail { ! vect_unaligned_possible } } } } */
  80