gcc/testsuite/gcc.dg/vect/vect-87.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include <stdarg.h>
   4 #include "tree-vect.h"
   5
   6 #define N 16
   7
   8 __attribute__ ((noinline))
   9 int main1 (int n, int *a)
  10 {
  11   int i, j, k;
  12   int b[N];
  13
  14   for (i = 0; i < n; i++)
  15     {
  16       for (j = 0; j < n; j++)
  17         {
  18           k = i + n;
  19           a[j] = k;
  20         }
  21       b[i] = k;
  22     }
  23
  24
  25   for (j = 0; j < n; j++)
  26     if (a[j] != i + n - 1)
  27       abort();
  28
  29   for (j = 0; j < n; j++)
  30     if (b[j] != j + n)
  31       abort();
  32
  33   return 0;
  34 }
  35
  36 int main (void)
  37 {
  38   int a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  39
  40   check_vect ();
  41
  42   main1 (N, a);
  43   main1 (0, a);
  44   main1 (1, a);
  45   main1 (2, a);
  46   main1 (N-1, a);
  47
  48   return 0;
  49 }
  50
  51 /* Fails for targets that don't vectorize PLUS (e.g alpha).  */
  52 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  53 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  54 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" {target vector_alignment_reachable} } } */
  55 /* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 1 "vect" {target { {! vector_alignment_reachable} && {! vect_hw_misalign} } } } } */
  56 /* { dg-final { cleanup-tree-dump "vect" } } */