gcc/testsuite/gcc.dg/vect/vect-31.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 32
   7
   8 struct t{
   9   int k[N];
  10   int l;
  11 };
  12
  13 struct s{
  14   char a;       /* aligned */
  15   char b[N-1];  /* unaligned (offset 1B) */
  16   char c[N];    /* aligned (offset NB) */
  17   struct t d;   /* aligned (offset 2NB) */
  18   struct t e;   /* unaligned (offset 2N+4N+4 B) */
  19 };
  20
  21 __attribute__ ((noinline))
  22 int main1 ()
  23 {
  24   int i;
  25   struct s tmp;
  26
  27   /* unaligned */
  28   for (i = 0; i < N/2; i++)
  29     {
  30       tmp.b[i] = 5;
  31     }
  32
  33   /* check results:  */
  34   for (i = 0; i <N/2; i++)
  35     {
  36       if (tmp.b[i] != 5)
  37         abort ();
  38     }
  39
  40   /* aligned */
  41   for (i = 0; i < N/2; i++)
  42     {
  43       tmp.c[i] = 6;
  44     }
  45
  46   /* check results:  */
  47   for (i = 0; i <N/2; i++)
  48     {
  49       if (tmp.c[i] != 6)
  50         abort ();
  51     }
  52
  53   /* aligned */
  54   for (i = 0; i < N/2; i++)
  55     {
  56       tmp.d.k[i] = 7;
  57     }
  58
  59   /* check results:  */
  60   for (i = 0; i <N/2; i++)
  61     {
  62       if (tmp.d.k[i] != 7)
  63         abort ();
  64     }
  65
  66   /* unaligned */
  67   for (i = 0; i < N/2; i++)
  68     {
  69       tmp.e.k[i] = 8;
  70     }
  71
  72   /* check results:  */
  73   for (i = 0; i <N/2; i++)
  74     {
  75       if (tmp.e.k[i] != 8)
  76         abort ();
  77     }
  78
  79   return 0;
  80 }
  81
  82 int main (void)
  83 {
  84   check_vect ();
  85
  86   return main1 ();
  87 }
  88
  89 /* { dg-final { scan-tree-dump-times "vectorized 4 loops" 1 "vect" } } */
  90 /* { dg-final { cleanup-tree-dump "vect" } } */