gcc/testsuite/gcc.dg/vect/vect-66.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 int main1 ()
   9 {
  10   int i, j;
  11   int ib[6] = {0,3,6,9,12,15};
  12   int ia[8][5][6];
  13   int ic[16][16][5][6];
  14
  15   /* Multidimensional array. Aligned. */
  16   for (i = 0; i < 16; i++)
  17     {
  18       for (j = 0; j < 4; j++)
  19         {
  20            ia[2][6][j] = 5;
  21         }
  22     }
  23
  24   /* check results: */
  25   for (i = 0; i < 16; i++)
  26     {
  27       for (j = 0; j < 4; j++)
  28         {
  29            if (ia[2][6][j] != 5)
  30                 abort();
  31         }
  32     }
  33   /* Multidimensional array. Aligned. */
  34   for (i = 0; i < 16; i++)
  35     {
  36       for (j = 0; j < 4; j++)
  37            ia[3][6][j+2] = 5;
  38     }
  39
  40   /* check results: */
  41   for (i = 0; i < 16; i++)
  42     {
  43       for (j = 2; j < 6; j++)
  44         {
  45            if (ia[3][6][j] != 5)
  46                 abort();
  47         }
  48     }
  49
  50   /* Multidimensional array. Not aligned. */
  51   for (i = 0; i < 16; i++)
  52     {
  53       for (j = 0; j < 4; j++)
  54         {
  55            ic[2][1][6][j+1] = 5;
  56         }
  57     }
  58
  59   /* check results: */
  60   for (i = 0; i < 16; i++)
  61     {
  62       for (j = 0; j < 4; j++)
  63         {
  64            if (ic[2][1][6][j+1] != 5)
  65                 abort();
  66         }
  67     }
  68
  69   return 0;
  70 }
  71
  72 int main (void)
  73 {
  74   check_vect ();
  75
  76   return main1 ();
  77 }
  78
  79 /* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" } } */
  80 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
  81 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" } } */
  82 /* { dg-final { cleanup-tree-dump "vect" } } */