gcc/testsuite/gcc.dg/vect/vect-86.c

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