1  /* Disabling epilogues until we find a better way to deal with scans.  */
       2  /* { dg-additional-options "--param vect-epilogues-nomask=0" } */
       3  /* { dg-require-effective-target vect_int } */
       4  
       5  #include <stdarg.h>
       6  #include "tree-vect.h"
       7  
       8  #define N 128
       9  unsigned char udata_ch[N];
      10  #define SUM N*(N-1)
      11  
      12  __attribute__ ((noinline)) int
      13  foo ()
      14  {
      15    int i;
      16    unsigned int intsum = 0;
      17  
      18    for (i = 0; i < N; i++)
      19      {
      20        udata_ch[i] = i*2;
      21        asm volatile ("" ::: "memory");
      22      }
      23  
      24    /* widenning sum: sum chars into int.  */
      25    for (i = 0; i < N; i++)
      26      {
      27        intsum += udata_ch[i];
      28      }
      29  
      30    /* check results:  */
      31    if (intsum != SUM)
      32      abort ();
      33  
      34    return 0;
      35  }
      36  
      37  int
      38  main (void)
      39  {
      40    check_vect ();
      41    return foo ();
      42  }
      43  
      44  /* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" } } */
      45  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_sum_qi_to_si || vect_unpack } } } } */
      46  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { { ! vect_widen_sum_qi_to_si } && { ! vect_unpack } } } } } */