1  /* { dg-do compile } */
       2  /* { dg-require-effective-target ilp32 } */
       3  /* { dg-options "-O" } */
       4  
       5  typedef unsigned char u8;
       6  struct __large_struct { unsigned long buf[100]; };
       7  static inline __attribute__((always_inline)) unsigned long
       8  __copy_from_user_inatomic(void *to, const void *from, unsigned long n)
       9  {
      10    unsigned long ret = 0;
      11    asm volatile("1:	mov""b"" %2,%""b""1\n" "2:\n"
      12  	       ".section .fixup,\"ax\"\n"
      13  	       "3:	mov %3,%0\n"
      14  	       "	xor""b"" %""b""1,%""b""1\n"
      15  	       "	jmp 2b\n"
      16  	       ".previous\n"
      17  	       " .section __ex_table,\"a\"\n"
      18  	       " " ".balign 4" " " "\n"
      19  	       " " ".long" " " "1b" "," "3b" "\n"
      20  	       " .previous\n"
      21  	       : "=r" (ret), "=q"(*(u8 *)to)
      22  	       : "m" ((*(struct __large_struct *)(from))), "i" (1), "0" (ret));
      23    return ret;
      24  }
      25  void romchecksum(const unsigned char *rom, unsigned char c)
      26  {
      27    unsigned char sum;
      28    for (sum = 0;
      29         !__copy_from_user_inatomic(&(c), ( typeof(c) *)(rom++), sizeof(c));)
      30      sum += c;
      31  }