diff options
Diffstat (limited to 'sysdeps/x86_64/bits/byteswap.h')
| -rw-r--r-- | sysdeps/x86_64/bits/byteswap.h | 22 |
1 files changed, 2 insertions, 20 deletions
diff --git a/sysdeps/x86_64/bits/byteswap.h b/sysdeps/x86_64/bits/byteswap.h index 472281fc82..d7e503c622 100644 --- a/sysdeps/x86_64/bits/byteswap.h +++ b/sysdeps/x86_64/bits/byteswap.h @@ -29,26 +29,8 @@ #define __bswap_constant_16(x) \ ((unsigned short int) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))) -#if defined __GNUC__ && __GNUC__ >= 2 -# define __bswap_16(x) \ - (__extension__ \ - ({ register unsigned short int __v, __x = (unsigned short int) (x); \ - if (__builtin_constant_p (__x)) \ - __v = __bswap_constant_16 (__x); \ - else \ - __asm__ ("rorw $8, %w0" \ - : "=r" (__v) \ - : "0" (__x) \ - : "cc"); \ - __v; })) -#else -/* This is better than nothing. */ -# define __bswap_16(x) \ - (__extension__ \ - ({ register unsigned short int __x = (unsigned short int) (x); \ - __bswap_constant_16 (__x); })) -#endif - +/* Get __bswap_16. */ +#include <bits/byteswap-16.h> /* Swap bytes in 32 bit value. */ #define __bswap_constant_32(x) \ |