1  /* { dg-require-effective-target vect_int } */
       2  
       3  #include <stdarg.h>
       4  #include "tree-vect.h"
       5  
       6  #define N 16
       7  signed char data_ch[N] =
       8    { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 };
       9  #define SUM 210
      10  
      11  __attribute__ ((noinline)) int
      12  foo ()
      13  {
      14    int i;
      15    signed short shortsum = 0;
      16  
      17    /* widenning sum: sum chars into short.  */
      18  
      19    for (i = 0; i < N; i++)
      20      {
      21        shortsum += data_ch[i];
      22      }
      23  
      24    /* check results:  */
      25    if (shortsum != SUM)
      26      abort ();
      27  
      28    return 0;
      29  }
      30  
      31  int
      32  main (void)
      33  {
      34    check_vect ();
      35    return foo ();
      36  }
      37  
      38  /* { dg-final { scan-tree-dump "vect_recog_widen_sum_pattern: detected" "vect" } } */
      39  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_sum_qi_to_hi } } } */
      40  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_widen_sum_qi_to_hi } } } } */