gcc-4_9-branch/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-31a.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 int main1 ()
  22 {
  23   int i;
  24   struct s tmp;
  25
  26   /* unaligned */
  27   for (i = 0; i < N/2; i++)
  28     {
  29       tmp.b[i] = 5;
  30     }
  31
  32   /* check results:  */
  33   for (i = 0; i <N/2; i++)
  34     {
  35       if (tmp.b[i] != 5)
  36         abort ();
  37     }
  38
  39   return 0;
  40 }
  41
  42 int main (void)
  43 {
  44   check_vect ();
  45
  46   return main1 ();
  47 }
  48
  49 /* { dg-final { scan-tree-dump-times "vectorization not profitable" 1 "vect" } } */
  50 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_hw_misalign } } } } */
  51 /* { dg-final { cleanup-tree-dump "vect" } } */