gnu/dist/gcc4/gcc/testsuite/gcc.dg/vect/vect-100.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] = {2,3,4,5,6,7,8,9,0};
  17
  18 int main1 () {
  19   int i;
  20   struct extraction *p;
  21
  22   p = (struct extraction *) malloc (sizeof (struct extraction));
  23
  24   /* Vectorizable: alias analysis determines that p can't point to a and/or b.  */
  25   for (i = 0; i < N; i++)
  26     {
  27       p->a[i] = a[i];
  28       p->b[i] = b[i];
  29     }
  30
  31   /* check results: */
  32   for (i = 0; i < N; i++)
  33     {
  34        if (p->a[i] != a[i] || p->b[i] != b[i])
  35          abort();
  36     }
  37
  38   return 0;
  39 }
  40
  41 int main2 () {
  42   int i;
  43   int c[N] = {1,2,3,4,5,6,7,8,9};
  44   int d[N] = {2,3,4,5,6,7,8,9,0};
  45   struct extraction *p;
  46   p = (struct extraction *) malloc (sizeof (struct extraction));
  47
  48   /* Vectorizable: c and d are local arrays.  */
  49   for (i = 0; i < N; i++)
  50     {
  51       p->a[i] = c[i];
  52       p->b[i] = d[i];
  53     }
  54
  55   /* check results: */
  56   for (i = 0; i < N; i++)
  57     {
  58        if (p->a[i] != c[i] || p->b[i] != d[i])
  59          abort();
  60     }
  61
  62   return 0;
  63 }
  64
  65 int main (void)
  66 {
  67   check_vect ();
  68
  69   main1 ();
  70   main2 ();
  71
  72   return 0;
  73 }
  74
  75 /* Requires versioning.  */
  76 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 0 "vect" } } */
  77 /* { dg-final { cleanup-tree-dump "vect" } } */
  78