gcc/testsuite/gcc.dg/vect/vect-63.c

   1 /* { dg-require-effective-target vect_int } */
   2 /* { dg-additional-options "-fdump-tree-optimized-details-blocks" } */
   3
   4 #include <stdarg.h>
   5 #include "tree-vect.h"
   6
   7 #define N 16
   8
   9 __attribute__ ((noinline))
  10 int main1 ()
  11 {
  12   int i, j;
  13   int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
  14   int ia[N*2][4][N];
  15
  16   /* Multidimensional array. Aligned.
  17      The first dimension depends on j: use strided stores. */
  18   for (i = 0; i < N; i++)
  19     {
  20       for (j = 0; j < N; j++)
  21         {
  22            ia[i + j][1][j] = ib[i];
  23         }
  24     }
  25
  26   /* check results: */
  27   for (i = 0; i < N; i++)
  28     {
  29 #pragma GCC novector
  30       for (j = 0; j < N; j++)
  31         {
  32            if (ia[i + j][1][j] != ib[i])
  33               abort();
  34         }
  35     }
  36
  37   return 0;
  38 }
  39
  40 int main (void)
  41 {
  42   check_vect ();
  43
  44   return main1 ();
  45 }
  46
  47 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
  48 /* { dg-final { scan-tree-dump-not "Invalid sum" "optimized" } } */