1  /* { dg-require-effective-target vect_int } */
       2  
       3  #include <stdarg.h>
       4  #include "tree-vect.h"
       5  
       6  #define N 16
       7  
       8  unsigned int ub[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
       9  unsigned int uc[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
      10  
      11  /* Vectorization of reduction using loop-aware SLP.  */
      12  
      13  __attribute__ ((noinline))
      14  int main1 (int n, int res0, int res1, int res2, int res3)
      15  {
      16    int i;
      17    unsigned int udiff0 = 5, udiff1 = 10, udiff2 = 20, udiff3 = 30;
      18  
      19    for (i = 0; i < n; i++) {
      20      udiff3 += (ub[4*i + 3] - uc[4*i + 3]);
      21      udiff2 += (ub[4*i + 2] - uc[4*i + 2]);
      22      udiff1 += (ub[4*i + 1] - uc[4*i + 1]);
      23      udiff0 += (ub[4*i] - uc[4*i]);
      24    }
      25  
      26    /* Check results:  */
      27    if (udiff0 != res0
      28        || udiff1 != res1
      29        || udiff2 != res2
      30        || udiff3 != res3)
      31      abort ();
      32  
      33    return 0;
      34  }
      35  
      36  int main (void)
      37  {
      38    check_vect ();
      39  
      40    main1 (N/4, 53, 66, 84, 102);
      41    main1 (N/4 - 1, 29, 40, 56, 72);
      42    return 0;
      43  }
      44  
      45  /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail vect_no_int_add } } } */
      46  /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { xfail vect_no_int_add } } } */
      47  /* { dg-final { scan-tree-dump-times "VEC_PERM_EXPR" 0 "vect" } } */