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

   1 /* Disabling epilogues until we find a better way to deal with scans.  */
   2 /* { dg-additional-options "--param vect-epilogues-nomask=0 -fdump-tree-optimized-details-blocks" } */
   3 /* { dg-skip-if "" { vect_no_align } } */
   4 /* { dg-require-effective-target vect_int } */
   5 /* { dg-add-options bind_pic_locally } */
   6
   7 #include <stdarg.h>
   8 #include "tree-vect.h"
   9
  10 #define N 32
  11
  12 short sa[N];
  13 short sc[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 short sb[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
  16                 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
  17 int ia[N];
  18 int ic[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 int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,
  21                0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
  22
  23 __attribute__ ((noinline))
  24 int main1 (int n)
  25 {
  26   int i;
  27
  28   /* Multiple types with different sizes, used in idependent
  29      copmutations. Vectorizable.  */
  30   for (i = 0; i < n; i++)
  31     {
  32       sa[i+2] = sb[i] + sc[i];
  33       ia[i+1] = ib[i] + ic[i];
  34     }
  35
  36   /* check results:  */
  37 #pragma GCC novector
  38   for (i = 0; i < n; i++)
  39     {
  40       if (sa[i+2] != sb[i] + sc[i] || ia[i+1] != ib[i] + ic[i])
  41         abort ();
  42     }
  43
  44   return 0;
  45 }
  46
  47 int main2 (int n)
  48 {
  49   int i;
  50
  51   /* Multiple types with different sizes, used in idependent
  52      copmutations. Vectorizable.  */
  53   for (i = 0; i < n; i++)
  54     {
  55       ia[i+1] = ib[i] + ic[i];
  56       sa[i] = sb[i] + sc[i];
  57     }
  58
  59   /* check results:  */
  60 #pragma GCC novector
  61   for (i = 0; i < n; i++)
  62     {
  63       if (sa[i] != sb[i] + sc[i] || ia[i+1] != ib[i] + ic[i])
  64         abort ();
  65     }
  66
  67   return 0;
  68 }
  69
  70
  71 int main (void)
  72 {
  73   check_vect ();
  74
  75   main1 (N-2);
  76   main2 (N-1);
  77
  78   return 0;
  79 }
  80
  81 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target vect_element_align } } } */
  82 /* { dg-final { scan-tree-dump-times "unsupported unaligned access" 2 "vect" { xfail vect_element_align } } } */
  83 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 3 "vect" { target vect_element_align xfail { ! vect_unaligned_possible } } } } */
  84
  85 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */