gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-slp-33.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 s{
   9   short a;      /* aligned */
  10   char b[N-1];  /* unaligned (offset 2B) */
  11 };
  12
  13 int main1 ()
  14 {
  15   int i;
  16   struct s tmp;
  17
  18   /* unaligned */
  19   for (i = 0; i < N/4; i++)
  20     {
  21       tmp.b[2*i] = 5;
  22       tmp.b[2*i+1] = 15;
  23     }
  24
  25   /* check results:  */
  26   for (i = 0; i <N/4; i++)
  27     {
  28       if (tmp.b[2*i] != 5
  29           || tmp.b[2*i+1] != 15)
  30         abort ();
  31     }
  32
  33   return 0;
  34 }
  35
  36 int main (void)
  37 {
  38   check_vect ();
  39
  40   return main1 ();
  41 }
  42
  43 /* { dg-final { scan-tree-dump-times "vectorization not profitable" 1 "vect" } } */
  44 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } } */
  45 /* { dg-final { cleanup-tree-dump "vect" } } */