mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-16 01:04:08 +08:00
588cb88ced
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program 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 license for more details you should have received a copy of the gnu general public license along with this program if not see the file copying or write to the free software foundation inc extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.231300438@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
559 B
C
33 lines
559 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* lib/lshrdi3.c
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/libgcc.h>
|
|
|
|
long long notrace __lshrdi3(long long u, word_type b)
|
|
{
|
|
DWunion uu, w;
|
|
word_type bm;
|
|
|
|
if (b == 0)
|
|
return u;
|
|
|
|
uu.ll = u;
|
|
bm = 32 - b;
|
|
|
|
if (bm <= 0) {
|
|
w.s.high = 0;
|
|
w.s.low = (unsigned int) uu.s.high >> -bm;
|
|
} else {
|
|
const unsigned int carries = (unsigned int) uu.s.high << bm;
|
|
|
|
w.s.high = (unsigned int) uu.s.high >> b;
|
|
w.s.low = ((unsigned int) uu.s.low >> b) | carries;
|
|
}
|
|
|
|
return w.ll;
|
|
}
|
|
EXPORT_SYMBOL(__lshrdi3);
|