gcc/testsuite/gcc.dg/vect/pr61680.c

   1
   2 #include "tree-vect.h"
   3
   4 double v[4096][4];
   5
   6 __attribute__((noinline, noclone)) void
   7 bar (double p[][4])
   8 {
   9   int i;
  10   double d = 172.0;
  11   for (i = 0; i < 4096; i++)
  12     {
  13       if (p[i][0] != 6.0 || p[i][1] != 6.0 || p[i][2] != 10.0)
  14         __builtin_abort ();
  15       if (__builtin_fabs (p[i][3] - d) > 0.25)
  16         __builtin_abort ();
  17     }
  18 }
  19
  20 __attribute__((noinline, noclone)) void
  21 foo (void)
  22 {
  23   int i;
  24   double w[4096][4], t;
  25   for (i = 0; i < 4096; i++)
  26     {
  27       w[i][0] = v[i][0] + 2.0;
  28       w[i][1] = v[i][1] + 1.0;
  29       w[i][2] = v[i][2] + 4.0;
  30       w[i][3] = (w[i][0] * w[i][0] + w[i][1] * w[i][1] + w[i][2] * w[i][2]);
  31     }
  32   bar (w);
  33 }
  34
  35 int
  36 main ()
  37 {
  38   int i;
  39
  40   check_vect ();
  41
  42   for (i = 0; i < 4096; i++)
  43     {
  44       v[i][0] = 4.0;
  45       v[i][1] = 5.0;
  46       v[i][2] = 6.0;
  47     }
  48   foo ();
  49   return 0;
  50 }
  51