1  /* { dg-do compile } */
       2  /* { dg-require-effective-target stdint_types } */
       3  /* { dg-options "" } */
       4  /* { dg-final { scan-assembler-not "__builtin_" } } */
       5  
       6  #include <stdint.h>
       7  
       8  uint16_t foo16 (uint16_t a)
       9  {
      10    uint16_t b;
      11  
      12    b = __builtin_bswap16 (a);
      13  
      14    return b;
      15  }
      16  
      17  uint32_t foo32 (uint32_t a)
      18  {
      19    uint32_t b;
      20  
      21    b = __builtin_bswap32 (a);
      22  
      23    return b;
      24  }
      25  
      26  uint64_t foo64 (uint64_t a)
      27  {
      28    uint64_t b;
      29  
      30    b = __builtin_bswap64 (a);
      31  
      32    return b;
      33  }