glibc/sysdeps/x86_64/multiarch/varshift.h

28 lines
1.1 KiB
C

/* Helper for variable shifts of SSE registers.
Copyright (C) 2010 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. */
extern char ___m128i_shift_right[31] __attribute__ ((visibility ("hidden")));
static __inline__ __m128i
__m128i_shift_right (__m128i value, unsigned long offset)
{
return _mm_shuffle_epi8 (value, _mm_loadu_si128 ((__m128 *) (___m128i_shift_right + offset)));
}