1  /* { dg-require-effective-target vect_int } */
       2  
       3  #include "tree-vect.h"
       4  int arr[2048];
       5  int res[100] = { 2148, 2146, 2144, 2142, 2140, 2138, 2136, 2134, 2132, 2130,
       6  		 2128, 2126, 2124, 2122, 2120, 2118, 2116, 2114, 2112, 2110,
       7  		 2108, 2106, 2104, 2102, 2100, 2098, 2096, 2094, 2092, 2090,
       8  		 2088, 2086, 2084, 2082, 2080, 2078, 2076, 2074, 2072, 2070,
       9  		 2068, 2066, 2064, 2062, 2060, 2058, 2056, 2054, 3078, 2050};
      10  
      11  __attribute__ ((noinline)) int
      12  foo (int *a, int *b, int len)
      13  {
      14    int i;
      15    int *a1 = a;
      16    int *a0 = a1 - 4;
      17    for (i = 0; i < len; i++)
      18      {
      19        *b = *a0 + *a1;
      20        b--;
      21        a0++;
      22        a1++;
      23      }
      24    return 0;
      25  }
      26  
      27  int main (void)
      28  {
      29    int *a = &arr[1027];
      30    int *b = &arr[1024];
      31  
      32    int i;
      33    for (i = 0; i < 2048; i++)
      34      arr[i] = i;
      35  
      36    foo (a, b, 50);
      37  
      38    for (i = 975; i < 1025; i++)
      39      if (arr[i] != res[i - 975])
      40        abort ();
      41  
      42    return 0;
      43  }
      44  
      45  /* { dg-final { scan-tree-dump "improved number of alias checks from \[0-9\]* to 1" "vect" { target vect_perm } } } */