gcc/testsuite/gcc.dg/vect/vect-early-break_24.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-require-effective-target vect_double } */
   3 /* { dg-require-effective-target vect_early_break_hw } */
   4
   5 #include "tree-vect.h"
   6
   7 extern void abort (void);
   8 void __attribute__((noinline,noclone))
   9 foo (double *b, double *d, double *f)
  10 {
  11   int i;
  12   for (i = 0; i < 1024; i++)
  13     {
  14       d[2*i] = 2. * d[2*i];
  15       d[2*i+1] = 4. * d[2*i+1];
  16       b[i] = d[2*i] - 1.;
  17       f[i] = d[2*i+1] + 2.;
  18     }
  19 }
  20 int main()
  21 {
  22   double b[1024], d[2*1024], f[1024];
  23   int i;
  24
  25   check_vect ();
  26
  27   for (i = 0; i < 2*1024; i++)
  28     d[i] = 1.;
  29   foo (b, d, f);
  30   for (i = 0; i < 1024; i+= 2)
  31     {
  32       if (d[2*i] != 2.)
  33         abort ();
  34       if (d[2*i+1] != 4.)
  35         abort ();
  36     }
  37   for (i = 0; i < 1024; i++)
  38     {
  39       if (b[i] != 1.)
  40         abort ();
  41       if (f[i] != 6.)
  42         abort ();
  43     }
  44   return 0;
  45 }
  46