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Diffstat (limited to 'sysdeps/wordsize-32/shdi3.c')
-rw-r--r-- | sysdeps/wordsize-32/shdi3.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/sysdeps/wordsize-32/shdi3.c b/sysdeps/wordsize-32/shdi3.c deleted file mode 100644 index 52feb98bec..0000000000 --- a/sysdeps/wordsize-32/shdi3.c +++ /dev/null @@ -1,150 +0,0 @@ -/* 64-bit integer shifting. - Copyright (C) 1989, 1992-2001, 2002 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <endian.h> -#include <stdlib.h> -#include <bits/wordsize.h> -#include <shlib-compat.h> - -#if __WORDSIZE != 32 -# error This is for 32-bit targets only -#endif - -#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_6) - -typedef unsigned int UQItype __attribute__ ((mode (QI))); -typedef int SItype __attribute__ ((mode (SI))); -typedef unsigned int USItype __attribute__ ((mode (SI))); -typedef int DItype __attribute__ ((mode (DI))); -typedef unsigned int UDItype __attribute__ ((mode (DI))); -#define Wtype SItype -#define HWtype SItype -#define DWtype DItype -#define UWtype USItype -#define UHWtype USItype -#define UDWtype UDItype -#define W_TYPE_SIZE 32 -#define BITS_PER_UNIT 8 - -#include <stdlib/longlong.h> - -#if __BYTE_ORDER == __BIG_ENDIAN -struct DWstruct { Wtype high, low;}; -#elif __BYTE_ORDER == __LITTLE_ENDIAN -struct DWstruct { Wtype low, high;}; -#else -#error Unhandled endianity -#endif -typedef union { struct DWstruct s; DWtype ll; } DWunion; - - -DWtype -___lshrdi3 (DWtype u, Wtype b) -{ - DWunion w; - Wtype bm; - DWunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.high = 0; - w.s.low = (UWtype) uu.s.high >> -bm; - } - else - { - UWtype carries = (UWtype) uu.s.high << bm; - - w.s.high = (UWtype) uu.s.high >> b; - w.s.low = ((UWtype) uu.s.low >> b) | carries; - } - - return w.ll; -} -symbol_version (___lshrdi3, __lshrdi3, GLIBC_2.0); - - -DWtype -___ashldi3 (DWtype u, Wtype b) -{ - DWunion w; - Wtype bm; - DWunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - w.s.low = 0; - w.s.high = (UWtype) uu.s.low << -bm; - } - else - { - UWtype carries = (UWtype) uu.s.low >> bm; - - w.s.low = (UWtype) uu.s.low << b; - w.s.high = ((UWtype) uu.s.high << b) | carries; - } - - return w.ll; -} -symbol_version (___ashldi3, __ashldi3, GLIBC_2.0); - - -DWtype -___ashrdi3 (DWtype u, Wtype b) -{ - DWunion w; - Wtype bm; - DWunion uu; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof (Wtype) * BITS_PER_UNIT) - b; - if (bm <= 0) - { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof (Wtype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } - else - { - UWtype carries = (UWtype) uu.s.high << bm; - - w.s.high = uu.s.high >> b; - w.s.low = ((UWtype) uu.s.low >> b) | carries; - } - - return w.ll; -} -symbol_version (___ashrdi3, __ashrdi3, GLIBC_2.0); - -#endif |