gcc/testsuite/gcc.dg/vect/vect-iv-4.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   unsigned int arr1[N];
  11   unsigned short arr2[N];
  12   unsigned int k = 0;
  13   unsigned short m = 3;
  14   int i = 0;
  15
  16   /* Vectorization of induction with multiple data types.  */
  17
  18    do {
  19         k = k + 2;
  20         arr1[i] = k;
  21         m = k + 3;
  22         arr2[i] = m;
  23         i++;
  24    } while (i < N);
  25
  26   /* check results:  */
  27 #pragma GCC novector
  28   for (i = 0; i < N; i++)
  29     {
  30       if (arr1[i] != 2+2*i || arr2[i] != 5 + 2*i)
  31         abort ();
  32     }
  33
  34   return 0;
  35 }
  36
  37 int main (void)
  38 {
  39   check_vect ();
  40
  41   return main1 ();
  42 }
  43
  44 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_pack_trunc } } } */