gnu/dist/gcc4/gcc/testsuite/gcc.dg/vect/vect-103.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdlib.h>
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 9
   8
   9 struct extraction
  10 {
  11   int a[N];
  12   int b[N];
  13 };
  14
  15 static int a[N] = {1,2,3,4,5,6,7,8,9};
  16 static int b[N] = {17,24,7,0,2,3,4,31,82};
  17 static int c[N] = {9,17,24,7,0,2,3,4,31};
  18
  19 int main1 (int x, int y) {
  20   int i;
  21   struct extraction *p;
  22   p = (struct extraction *) malloc (sizeof (struct extraction));
  23
  24   for (i = 0; i < N; i++)
  25     {
  26        p->a[i] = a[i];
  27        p->b[i] = b[i];
  28        if (x == 135)
  29          abort (); /* to avoid vectorization  */
  30     }
  31
  32   /* Vectorizable: distance > VF.  */
  33   for (i = 0; i < N; i++)
  34     {
  35        *((int *)p + x + i) = *((int *)p + x + i + 8);
  36     }
  37
  38   /* check results: */
  39   for (i = 0; i < N; i++)
  40     {
  41        if (p->a[i] != c[i])
  42          abort();
  43     }
  44   return 0;
  45 }
  46
  47 int main (void)
  48 {
  49   check_vect ();
  50
  51   return main1 (0, N);
  52 }
  53
  54 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  55 /* { dg-final { scan-tree-dump-times "dependence distance modulo vf == 0" 1 "vect" } } */
  56 /* { dg-final { cleanup-tree-dump "vect" } } */
  57