Use x86-64 bits/byteswap.h for both i386 and x86_64

7 files changed, 14 insertions, 175 deletions

diff --git a/ChangeLog b/ChangeLog
index 4adb73a8c8..5b1346e188 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2012-05-30  H.J. Lu  <hongjiu.lu@intel.com>
+
+	[BZ #14117]
+	* sysdeps/i386/bits/byteswap.h: Removed.
+	* sysdeps/i386/bits/byteswap-16.h: Likewise.
+	* sysdeps/x86_64/bits/byteswap.h: Renamed to ...
+	* sysdeps/x86/bits/byteswap.h: This.
+	* sysdeps/x86_64/bits/byteswap-16.h: Renamed to ...
+	* sysdeps/x86/bits/byteswap-16.h: This.
+	* sysdeps/i386/Implies: Add x86.
+	* sysdeps/x86_64/Implies: Likewise.
+
 2012-05-30  David S. Miller  <davem@davemloft.net>
 
 	* soft-fp/soft-fp.h (FP_CUR_EXCEPTIONS): Define.
diff --git a/sysdeps/i386/Implies b/sysdeps/i386/Implies
index 3a32442d63..20b2dffc29 100644
--- a/sysdeps/i386/Implies
+++ b/sysdeps/i386/Implies
@@ -1,3 +1,4 @@
+x86
 wordsize-32
 ieee754/ldbl-96
 ieee754/dbl-64
diff --git a/sysdeps/i386/bits/byteswap.h b/sysdeps/i386/bits/byteswap.h
deleted file mode 100644
index 3542816385..0000000000
--- a/sysdeps/i386/bits/byteswap.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997-2012  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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H
-# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifndef _BITS_BYTESWAP_H
-#define _BITS_BYTESWAP_H 1
-
-/* Swap bytes in 16 bit value.  */
-#define __bswap_constant_16(x) \
-     ((unsigned short int) ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)))
-
-/* Get __bswap_16.  */
-#include <bits/byteswap-16.h>
-
-/* Swap bytes in 32 bit value.  */
-#define __bswap_constant_32(x) \
-     ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) |		      \
-      (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
-
-#ifdef __GNUC__
-# if __GNUC__ >= 2
-/* To swap the bytes in a word the i486 processors and up provide the
-   `bswap' opcode.  On i386 we have to use three instructions.  */
-#  if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ \
-      && !defined __pentium4__ && !defined __k8__ && !defined __athlon__ \
-      && !defined __k6__ && !defined __nocona__ && !defined __core2__ \
-      && !defined __geode__ && !defined __amdfam10__
-#   define __bswap_32(x)						      \
-     (__extension__							      \
-      ({ register unsigned int __v, __x = (x);				      \
-	 if (__builtin_constant_p (__x))				      \
-	   __v = __bswap_constant_32 (__x);				      \
-	 else								      \
-	   __asm__ ("rorw $8, %w0;"					      \
-		    "rorl $16, %0;"					      \
-		    "rorw $8, %w0"					      \
-		    : "=r" (__v)					      \
-		    : "0" (__x)						      \
-		    : "cc");						      \
-	 __v; }))
-#  else
-#   define __bswap_32(x) \
-     (__extension__							      \
-      ({ register unsigned int __v, __x = (x);				      \
-	 if (__builtin_constant_p (__x))				      \
-	   __v = __bswap_constant_32 (__x);				      \
-	 else								      \
-	   __asm__ ("bswap %0" : "=r" (__v) : "0" (__x));		      \
-	 __v; }))
-#  endif
-# else
-#  define __bswap_32(x) \
-     (__extension__							      \
-      ({ register unsigned int __x = (x); __bswap_constant_32 (__x); }))
-# endif
-#else
-static __inline unsigned int
-__bswap_32 (unsigned int __bsx)
-{
-  return __bswap_constant_32 (__bsx);
-}
-#endif
-
-
-#if defined __GNUC__ && __GNUC__ >= 2
-/* Swap bytes in 64 bit value.  */
-# define __bswap_constant_64(x) \
-     (__extension__ ((((x) & 0xff00000000000000ull) >> 56)		      \
-		     | (((x) & 0x00ff000000000000ull) >> 40)		      \
-		     | (((x) & 0x0000ff0000000000ull) >> 24)		      \
-		     | (((x) & 0x000000ff00000000ull) >> 8)		      \
-		     | (((x) & 0x00000000ff000000ull) << 8)		      \
-		     | (((x) & 0x0000000000ff0000ull) << 24)		      \
-		     | (((x) & 0x000000000000ff00ull) << 40)		      \
-		     | (((x) & 0x00000000000000ffull) << 56)))
-
-# define __bswap_64(x) \
-     (__extension__							      \
-      ({ union { __extension__ unsigned long long int __ll;		      \
-		 unsigned long int __l[2]; } __w, __r;			      \
-	 if (__builtin_constant_p (x))					      \
-	   __r.__ll = __bswap_constant_64 (x);				      \
-	 else								      \
-	   {								      \
-	     __w.__ll = (x);						      \
-	     __r.__l[0] = __bswap_32 (__w.__l[1]);			      \
-	     __r.__l[1] = __bswap_32 (__w.__l[0]);			      \
-	   }								      \
-	 __r.__ll; }))
-#elif __GLIBC_HAVE_LONG_LONG
-# define __bswap_constant_64(x) \
-     ((((x) & 0xff00000000000000ull) >> 56)				      \
-      | (((x) & 0x00ff000000000000ull) >> 40)				      \
-      | (((x) & 0x0000ff0000000000ull) >> 24)				      \
-      | (((x) & 0x000000ff00000000ull) >> 8)				      \
-      | (((x) & 0x00000000ff000000ull) << 8)				      \
-      | (((x) & 0x0000000000ff0000ull) << 24)				      \
-      | (((x) & 0x000000000000ff00ull) << 40)				      \
-      | (((x) & 0x00000000000000ffull) << 56))
-
-static __inline unsigned long long int
-__bswap_64 (unsigned long long int __bsx)
-{
-  return __bswap_constant_64 (__bsx);
-}
-#endif
-
-#endif /* _BITS_BYTESWAP_H */
diff --git a/sysdeps/i386/bits/byteswap-16.h b/sysdeps/x86/bits/byteswap-16.h
index 584eb86b74..584eb86b74 100644
--- a/sysdeps/i386/bits/byteswap-16.h
+++ b/sysdeps/x86/bits/byteswap-16.h
diff --git a/sysdeps/x86_64/bits/byteswap.h b/sysdeps/x86/bits/byteswap.h
index 4178439334..4178439334 100644
--- a/sysdeps/x86_64/bits/byteswap.h
+++ b/sysdeps/x86/bits/byteswap.h
diff --git a/sysdeps/x86_64/Implies b/sysdeps/x86_64/Implies
index c8d7d2d91a..811c19a8f2 100644
--- a/sysdeps/x86_64/Implies
+++ b/sysdeps/x86_64/Implies
@@ -1,3 +1,4 @@
+x86
 ieee754/ldbl-96
 ieee754/dbl-64/wordsize-64
 ieee754/dbl-64
diff --git a/sysdeps/x86_64/bits/byteswap-16.h b/sysdeps/x86_64/bits/byteswap-16.h
deleted file mode 100644
index 584eb86b74..0000000000
--- a/sysdeps/x86_64/bits/byteswap-16.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Macros to swap the order of bytes in 16-bit integer values.
-   Copyright (C) 2012 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
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_BYTESWAP_H
-# error "Never use <bits/byteswap-16.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifdef __GNUC__
-# if __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
-#else
-static __inline unsigned short int
-__bswap_16 (unsigned short int __bsx)
-{
-  return __bswap_constant_16 (__bsx);
-}
-#endif