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