diff options
author | Ingo Molnar <mingo@kernel.org> | 2018-04-12 09:42:34 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-04-12 09:42:34 +0200 |
commit | ef389b734691cdc8beb009dd402135dcdcb86a56 (patch) | |
tree | 9523a37db93cb7c7874a5f18b4d9a7014898b814 /arch/mn10300/lib/ashrdi3.c | |
parent | a774635db5c430cbf21fa5d2f2df3d23aaa8e782 (diff) | |
parent | c76fc98260751e71c884dc1a18a07e427ef033b5 (diff) |
Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mn10300/lib/ashrdi3.c')
-rw-r--r-- | arch/mn10300/lib/ashrdi3.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/arch/mn10300/lib/ashrdi3.c b/arch/mn10300/lib/ashrdi3.c deleted file mode 100644 index c54f61ddf0b5..000000000000 --- a/arch/mn10300/lib/ashrdi3.c +++ /dev/null @@ -1,61 +0,0 @@ -/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */ -/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public Licence as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC 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 General Public Licence for more details. - -You should have received a copy of the GNU General Public Licence -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -#define BITS_PER_UNIT 8 - -typedef int SItype __attribute__((mode(SI))); -typedef unsigned int USItype __attribute__((mode(SI))); -typedef int DItype __attribute__((mode(DI))); -typedef int word_type __attribute__((mode(__word__))); - -struct DIstruct { - SItype low; - SItype high; -}; - -union DIunion { - struct DIstruct s; - DItype ll; -}; - -DItype __ashrdi3(DItype u, word_type b) -{ - union DIunion w; - union DIunion uu; - word_type bm; - - if (b == 0) - return u; - - uu.ll = u; - - bm = (sizeof(SItype) * BITS_PER_UNIT) - b; - if (bm <= 0) { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = uu.s.high >> (sizeof(SItype) * BITS_PER_UNIT - 1); - w.s.low = uu.s.high >> -bm; - } else { - USItype carries = (USItype)uu.s.high << bm; - w.s.high = uu.s.high >> b; - w.s.low = ((USItype)uu.s.low >> b) | carries; - } - - return w.ll; -} |