1  /* { dg-do compile } */
       2  /* { dg-options "-O3 -msse2 -mno-avx" } */
       3  
       4  void fill(unsigned char __seg_gs *arr, unsigned char c, long n)
       5  {
       6    for (long i = 0; i < n; ++i)
       7      arr[i] = c;
       8  }
       9  
      10  /* { dg-final { scan-assembler "mov\[au\]p.\[ \t\]\[^,\]+, %gs:" } } */