diff options
Diffstat (limited to 'sysdeps/ia64')
| -rw-r--r-- | sysdeps/ia64/bits/byteswap.h | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/sysdeps/ia64/bits/byteswap.h b/sysdeps/ia64/bits/byteswap.h index d64914f36e..29d0e37d12 100644 --- a/sysdeps/ia64/bits/byteswap.h +++ b/sysdeps/ia64/bits/byteswap.h @@ -1,5 +1,6 @@ /* Macros to swap the order of bytes in integer values. - Copyright (C) 1997,1998,2000,2002,2003,2008 Free Software Foundation, Inc. + Copyright (C) 1997,1998,2000,2002,2003,2008,2011 + Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -77,17 +78,17 @@ __bswap_32 (unsigned int __bsx) /* Swap bytes in 64 bit value. */ -#define __bswap_constant_64(x) \ - ((((x) & 0xff00000000000000ul) >> 56) \ - | (((x) & 0x00ff000000000000ul) >> 40) \ - | (((x) & 0x0000ff0000000000ul) >> 24) \ - | (((x) & 0x000000ff00000000ul) >> 8) \ - | (((x) & 0x00000000ff000000ul) << 8) \ - | (((x) & 0x0000000000ff0000ul) << 24) \ - | (((x) & 0x000000000000ff00ul) << 40) \ - | (((x) & 0x00000000000000fful) << 56)) - #if defined __GNUC__ && __GNUC__ >= 2 +# define __bswap_constant_64(x) \ + (__extension__ ((((x) & 0xff00000000000000ul) >> 56) \ + | (((x) & 0x00ff000000000000ul) >> 40) \ + | (((x) & 0x0000ff0000000000ul) >> 24) \ + | (((x) & 0x000000ff00000000ul) >> 8) \ + | (((x) & 0x00000000ff000000ul) << 8) \ + | (((x) & 0x0000000000ff0000ul) << 24) \ + | (((x) & 0x000000000000ff00ul) << 40) \ + | (((x) & 0x00000000000000fful) << 56))) + # define __bswap_64(x) \ (__extension__ \ ({ register unsigned long int __v, __x = (x); \ @@ -97,9 +98,19 @@ __bswap_32 (unsigned int __bsx) __asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \ : "=r" (__v) \ : "r" ((unsigned long int) (__x))); \ - __v; })) + __v; })) #else +# define __bswap_constant_64(x) \ + ((((x) & 0xff00000000000000ul) >> 56) \ + | (((x) & 0x00ff000000000000ul) >> 40) \ + | (((x) & 0x0000ff0000000000ul) >> 24) \ + | (((x) & 0x000000ff00000000ul) >> 8) \ + | (((x) & 0x00000000ff000000ul) << 8) \ + | (((x) & 0x0000000000ff0000ul) << 24) \ + | (((x) & 0x000000000000ff00ul) << 40) \ + | (((x) & 0x00000000000000fful) << 56)) + static __inline unsigned long int __bswap_64 (unsigned long int __bsx) { |