/*
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* Copyright 2015 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author: Oded Gabbay <oded.gabbay@redhat.com>
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*/
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/**
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* @file
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* POWER8 intrinsics portability header.
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*
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*/
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#ifndef U_PWR8_H_
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#define U_PWR8_H_
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#if defined(_ARCH_PWR8) && defined(PIPE_ARCH_LITTLE_ENDIAN)
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#define VECTOR_ALIGN_16 __attribute__ ((__aligned__ (16)))
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typedef VECTOR_ALIGN_16 vector unsigned char __m128i;
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typedef VECTOR_ALIGN_16 union m128i {
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__m128i m128i;
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vector signed int m128si;
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vector unsigned int m128ui;
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ubyte ub[16];
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ushort us[8];
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int i[4];
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uint ui[4];
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} __m128i_union;
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static inline __m128i
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vec_set_epi32 (int i3, int i2, int i1, int i0)
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{
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__m128i_union vdst;
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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vdst.i[0] = i0;
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vdst.i[1] = i1;
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vdst.i[2] = i2;
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vdst.i[3] = i3;
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#else
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vdst.i[3] = i0;
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vdst.i[2] = i1;
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vdst.i[1] = i2;
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vdst.i[0] = i3;
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#endif
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return (__m128i) vdst.m128si;
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}
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static inline __m128i
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vec_setr_epi32 (int i0, int i1, int i2, int i3)
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{
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return vec_set_epi32 (i3, i2, i1, i0);
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}
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static inline __m128i
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vec_unpacklo_epi32 (__m128i even, __m128i odd)
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{
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static const __m128i perm_mask =
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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{ 0, 1, 2, 3, 16, 17, 18, 19, 4, 5, 6, 7, 20, 21, 22, 23};
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#else
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{24, 25, 26, 27, 8, 9, 10, 11, 28, 29, 30, 31, 12, 13, 14, 15};
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#endif
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return vec_perm (even, odd, perm_mask);
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}
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static inline __m128i
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vec_unpackhi_epi32 (__m128i even, __m128i odd)
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{
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static const __m128i perm_mask =
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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{ 8, 9, 10, 11, 24, 25, 26, 27, 12, 13, 14, 15, 28, 29, 30, 31};
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#else
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{16, 17, 18, 19, 0, 1, 2, 3, 20, 21, 22, 23, 4, 5, 6, 7};
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#endif
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return vec_perm (even, odd, perm_mask);
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}
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static inline __m128i
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vec_unpacklo_epi64 (__m128i even, __m128i odd)
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{
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static const __m128i perm_mask =
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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{ 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23};
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#else
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{24, 25, 26, 27, 28, 29, 30, 31, 8, 9, 10, 11, 12, 13, 14, 15};
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#endif
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return vec_perm (even, odd, perm_mask);
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}
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static inline __m128i
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vec_unpackhi_epi64 (__m128i even, __m128i odd)
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{
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static const __m128i perm_mask =
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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{ 8, 9, 10, 11, 12, 13, 14, 15, 24, 25, 26, 27, 28, 29, 30, 31};
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#else
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{16, 17, 18, 19, 20, 21, 22, 23, 0, 1, 2, 3, 4, 5, 6, 7};
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#endif
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return vec_perm (even, odd, perm_mask);
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}
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static inline __m128i
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vec_add_epi32 (__m128i a, __m128i b)
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{
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return (__m128i) vec_add ((vector signed int) a, (vector signed int) b);
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}
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static inline __m128i
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vec_sub_epi32 (__m128i a, __m128i b)
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{
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return (__m128i) vec_sub ((vector signed int) a, (vector signed int) b);
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}
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/* Call this function ONLY on POWER8 and newer platforms */
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static inline __m128i
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vec_mullo_epi32 (__m128i a, __m128i b)
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{
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__m128i v;
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__asm__(
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"vmuluwm %0, %1, %2 \n"
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: "=v" (v)
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: "v" (a), "v" (b)
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);
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return v;
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}
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static inline __m128i
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vec_andnot_si128 (__m128i a, __m128i b)
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{
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return vec_andc (b, a);
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}
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static inline void
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transpose4_epi32(const __m128i * restrict a,
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const __m128i * restrict b,
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const __m128i * restrict c,
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const __m128i * restrict d,
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__m128i * restrict o,
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__m128i * restrict p,
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__m128i * restrict q,
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__m128i * restrict r)
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{
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__m128i t0 = vec_unpacklo_epi32(*a, *b);
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__m128i t1 = vec_unpacklo_epi32(*c, *d);
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__m128i t2 = vec_unpackhi_epi32(*a, *b);
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__m128i t3 = vec_unpackhi_epi32(*c, *d);
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*o = vec_unpacklo_epi64(t0, t1);
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*p = vec_unpackhi_epi64(t0, t1);
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*q = vec_unpacklo_epi64(t2, t3);
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*r = vec_unpackhi_epi64(t2, t3);
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}
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static inline __m128i
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vec_slli_epi32 (__m128i vsrc, unsigned int count)
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{
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__m128i_union vec_count;
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if (count >= 32)
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return (__m128i) vec_splats (0);
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else if (count == 0)
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return vsrc;
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/* In VMX, all shift count fields must contain the same value */
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vec_count.m128si = (vector signed int) vec_splats (count);
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return (__m128i) vec_sl ((vector signed int) vsrc, vec_count.m128ui);
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}
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static inline __m128i
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vec_srli_epi32 (__m128i vsrc, unsigned int count)
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{
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__m128i_union vec_count;
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if (count >= 32)
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return (__m128i) vec_splats (0);
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else if (count == 0)
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return vsrc;
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/* In VMX, all shift count fields must contain the same value */
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vec_count.m128si = (vector signed int) vec_splats (count);
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return (__m128i) vec_sr ((vector signed int) vsrc, vec_count.m128ui);
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}
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static inline __m128i
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vec_srai_epi32 (__m128i vsrc, unsigned int count)
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{
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__m128i_union vec_count;
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if (count >= 32)
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return (__m128i) vec_splats (0);
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else if (count == 0)
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return vsrc;
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/* In VMX, all shift count fields must contain the same value */
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vec_count.m128si = (vector signed int) vec_splats (count);
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return (__m128i) vec_sra ((vector signed int) vsrc, vec_count.m128ui);
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}
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static inline __m128i
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vec_cmpeq_epi32 (__m128i a, __m128i b)
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{
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return (__m128i) vec_cmpeq ((vector signed int) a, (vector signed int) b);
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}
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static inline __m128i
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vec_loadu_si128 (const uint32_t* src)
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{
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__m128i_union vsrc;
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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vsrc.m128ui = *((vector unsigned int *) src);
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#else
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__m128i vmask, tmp1, tmp2;
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vmask = vec_lvsl(0, src);
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tmp1 = (__m128i) vec_ld (0, src);
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tmp2 = (__m128i) vec_ld (15, src);
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vsrc.m128ui = (vector unsigned int) vec_perm (tmp1, tmp2, vmask);
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#endif
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return vsrc.m128i;
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}
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static inline __m128i
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vec_load_si128 (const uint32_t* src)
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{
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__m128i_union vsrc;
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vsrc.m128ui = *((vector unsigned int *) src);
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return vsrc.m128i;
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}
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static inline void
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vec_store_si128 (uint32_t* dest, __m128i vdata)
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{
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vec_st ((vector unsigned int) vdata, 0, dest);
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}
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/* Call this function ONLY on POWER8 and newer platforms */
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static inline int
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vec_movemask_epi8 (__m128i vsrc)
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{
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__m128i_union vtemp;
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int result;
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vtemp.m128i = vec_vgbbd(vsrc);
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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result = vtemp.ub[15] << 8 | vtemp.ub[7];
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#else
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result = vtemp.ub[0] << 8 | vtemp.ub[8];
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#endif
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return result;
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}
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static inline __m128i
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vec_packs_epi16 (__m128i a, __m128i b)
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{
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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return (__m128i) vec_packs ((vector signed short) a,
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(vector signed short) b);
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#else
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return (__m128i) vec_packs ((vector signed short) b,
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(vector signed short) a);
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#endif
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}
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static inline __m128i
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vec_packs_epi32 (__m128i a, __m128i b)
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{
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#ifdef PIPE_ARCH_LITTLE_ENDIAN
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return (__m128i) vec_packs ((vector signed int) a, (vector signed int) b);
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#else
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return (__m128i) vec_packs ((vector signed int) b, (vector signed int) a);
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#endif
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}
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#endif /* _ARCH_PWR8 && PIPE_ARCH_LITTLE_ENDIAN */
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#endif /* U_PWR8_H_ */
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