1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-bswap-details" } */
       3  
       4  typedef unsigned int uint32_t;
       5  typedef unsigned char uint8_t;
       6  
       7  uint32_t load_le_32_or(const uint8_t *ptr)
       8  {
       9  #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
      10    return ((uint32_t)ptr[0]) |
      11           ((uint32_t)ptr[1] << 8) |
      12           ((uint32_t)ptr[2] << 16) |
      13           ((uint32_t)ptr[3] << 24);
      14  #else
      15    return ((uint32_t)ptr[3]) |
      16           ((uint32_t)ptr[2] << 8) |
      17           ((uint32_t)ptr[1] << 16) |
      18           ((uint32_t)ptr[0] << 24);
      19  #endif
      20  }
      21  
      22  uint32_t load_le_32_add(const uint8_t *ptr)
      23  {
      24  #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
      25    return ((uint32_t)ptr[0]) +
      26           ((uint32_t)ptr[1] << 8) +
      27           ((uint32_t)ptr[2] << 16) +
      28           ((uint32_t)ptr[3] << 24);
      29  #else
      30    return ((uint32_t)ptr[3]) +
      31           ((uint32_t)ptr[2] << 8) +
      32           ((uint32_t)ptr[1] << 16) +
      33           ((uint32_t)ptr[0] << 24);
      34  #endif
      35  }
      36  
      37  uint32_t load_le_32_xor(const uint8_t *ptr)
      38  {
      39  #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
      40    return ((uint32_t)ptr[0]) ^
      41           ((uint32_t)ptr[1] << 8) ^
      42           ((uint32_t)ptr[2] << 16) ^
      43           ((uint32_t)ptr[3] << 24);
      44  #else
      45    return ((uint32_t)ptr[3]) ^
      46           ((uint32_t)ptr[2] << 8) ^
      47           ((uint32_t)ptr[1] << 16) ^
      48           ((uint32_t)ptr[0] << 24);
      49  #endif
      50  }
      51  
      52  /* { dg-final { scan-tree-dump-times "32 bit load in target endianness found" 3 "bswap" } } */
      53