gcc/testsuite/gcc.dg/vect/vect-iv-5.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 __attribute__ ((noinline)) int main1 ()
   9 {
  10   float arr[N];
  11   float f = 1.0;
  12   int i;
  13
  14   /* Vectorization of fp induction.  */
  15
  16   for (i=0; i<N; i++)
  17     {
  18       arr[i] = f;
  19       f += 2.0;
  20     }
  21
  22   /* check results:  */
  23 #pragma GCC novector
  24   for (i = 0; i < N; i++)
  25     {
  26       if (arr[i] != 1.0 + 2.0*i)
  27         abort ();
  28     }
  29
  30   return 0;
  31 }
  32
  33 int main (void)
  34 {
  35   check_vect ();
  36
  37   return main1 ();
  38 }
  39
  40 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail {! arm_neon_ok } } } } */