1  /* PR tree-optimization/59523 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O3" } */
       4  /* { dg-additional-options "-mavx2" { target { i?86-*-* x86_64-*-* } } } */
       5  /* { dg-require-effective-target alloca } */
       6  
       7  int *
       8  foo (int a, int *b, int *c, int *d)
       9  {
      10    int i, *r = __builtin_alloca (a * sizeof (int));
      11    __builtin_memcpy (r, d, a * sizeof (int));
      12    for (i = 0; i < 64; i++)
      13      c[i] += b[i];
      14    for (i = 0; i < a; i++)
      15      if (r[i] == 0)
      16        r[i] = 1;
      17    return r;
      18  }
      19  
      20  /* { dg-prune-output "-Wreturn-local-addr" } */