2 * Copyright (c) 2018 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #ifndef included_vector_avx2_h
17 #define included_vector_avx2_h
19 #include <vppinfra/clib.h>
20 #include <x86intrin.h>
23 #define foreach_avx2_vec256i \
24 _(i,8,32,epi8) _(i,16,16,epi16) _(i,32,8,epi32) _(i,64,4,epi64)
25 #define foreach_avx2_vec256u \
26 _(u,8,32,epi8) _(u,16,16,epi16) _(u,32,8,epi32) _(u,64,4,epi64)
27 #define foreach_avx2_vec256f \
28 _(f,32,8,ps) _(f,64,4,pd)
30 #define _mm256_set1_epi64 _mm256_set1_epi64x
32 /* splat, load_unaligned, store_unaligned, is_all_zero, is_equal,
34 #define _(t, s, c, i) \
35 static_always_inline t##s##x##c \
36 t##s##x##c##_splat (t##s x) \
37 { return (t##s##x##c) _mm256_set1_##i (x); } \
39 static_always_inline t##s##x##c \
40 t##s##x##c##_load_unaligned (void *p) \
41 { return (t##s##x##c) _mm256_loadu_si256 (p); } \
43 static_always_inline void \
44 t##s##x##c##_store_unaligned (t##s##x##c v, void *p) \
45 { _mm256_storeu_si256 ((__m256i *) p, (__m256i) v); } \
47 static_always_inline int \
48 t##s##x##c##_is_all_zero (t##s##x##c x) \
49 { return _mm256_testz_si256 ((__m256i) x, (__m256i) x); } \
51 static_always_inline int \
52 t##s##x##c##_is_equal (t##s##x##c a, t##s##x##c b) \
53 { return t##s##x##c##_is_all_zero (a ^ b); } \
55 static_always_inline int \
56 t##s##x##c##_is_all_equal (t##s##x##c v, t##s x) \
57 { return t##s##x##c##_is_equal (v, t##s##x##c##_splat (x)); } \
59 static_always_inline t##s##x##c \
60 t##s##x##c##_interleave_lo (t##s##x##c a, t##s##x##c b) \
61 { return (t##s##x##c) _mm256_unpacklo_##i ((__m256i) a, (__m256i) b); } \
63 static_always_inline t##s##x##c \
64 t##s##x##c##_interleave_hi (t##s##x##c a, t##s##x##c b) \
65 { return (t##s##x##c) _mm256_unpackhi_##i ((__m256i) a, (__m256i) b); } \
68 foreach_avx2_vec256i foreach_avx2_vec256u
73 u32x8_permute (u32x8 v, u32x8 idx)
75 return (u32x8) _mm256_permutevar8x32_epi32 ((__m256i) v, (__m256i) idx);
78 /* _extract_lo, _extract_hi */
82 t2##_extract_lo (t2 v) \
83 { return (t1) _mm256_extracti128_si256 ((__m256i) v, 0); } \
86 t2##_extract_hi (t2 v) \
87 { return (t1) _mm256_extracti128_si256 ((__m256i) v, 1); } \
90 t2##_insert_lo (t2 v1, t1 v2) \
91 { return (t2) _mm256_inserti128_si256 ((__m256i) v1, (__m128i) v2, 0); }\
94 t2##_insert_hi (t2 v1, t1 v2) \
95 { return (t2) _mm256_inserti128_si256 ((__m256i) v1, (__m128i) v2, 1); }\
107 static_always_inline u32
108 u8x32_msb_mask (u8x32 v)
110 return _mm256_movemask_epi8 ((__m256i) v);
116 static_always_inline t \
117 f##_extend_to_##t (f x) \
118 { return (t) _mm256_cvt##i ((__m128i) x); }
120 _(u16x8, u32x8, epu16_epi32)
121 _(u16x8, u64x4, epu16_epi64)
122 _(u32x4, u64x4, epu32_epi64)
123 _(u8x16, u16x16, epu8_epi64)
124 _(u8x16, u32x8, epu8_epi32)
125 _(u8x16, u64x4, epu8_epi64)
126 _(i16x8, i32x8, epi16_epi32)
127 _(i16x8, i64x4, epi16_epi64)
128 _(i32x4, i64x4, epi32_epi64)
129 _(i8x16, i16x16, epi8_epi64)
130 _(i8x16, i32x8, epi8_epi32)
131 _(i8x16, i64x4, epi8_epi64)
135 static_always_inline u16x16
136 u16x16_byte_swap (u16x16 v)
139 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14,
140 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14
142 return (u16x16) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) swap);
145 static_always_inline u32x8
146 u32x8_hadd (u32x8 v1, u32x8 v2)
148 return (u32x8) _mm256_hadd_epi32 ((__m256i) v1, (__m256i) v2);
151 static_always_inline u16x16
152 u16x16_mask_last (u16x16 v, u8 n_last)
154 const u16x16 masks[17] = {
160 {-1, -1, -1, -1, -1},
161 {-1, -1, -1, -1, -1, -1},
162 {-1, -1, -1, -1, -1, -1, -1},
163 {-1, -1, -1, -1, -1, -1, -1, -1},
164 {-1, -1, -1, -1, -1, -1, -1, -1, -1},
165 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
166 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
167 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
168 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
169 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
170 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
171 {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
174 ASSERT (n_last < 17);
176 return v & masks[16 - n_last];
179 static_always_inline f32x8
180 f32x8_from_u32x8 (u32x8 v)
182 return (f32x8) _mm256_cvtepi32_ps ((__m256i) v);
185 static_always_inline u32x8
186 u32x8_from_f32x8 (f32x8 v)
188 return (u32x8) _mm256_cvttps_epi32 ((__m256) v);
191 #define u16x16_blend(v1, v2, mask) \
192 (u16x16) _mm256_blend_epi16 ((__m256i) (v1), (__m256i) (v2), mask)
194 static_always_inline u64x4
195 u64x4_gather (void *p0, void *p1, void *p2, void *p3)
198 *(u64 *) p0, *(u64 *) p1, *(u64 *) p2, *(u64 *) p3
203 static_always_inline u32x8
204 u32x8_gather (void *p0, void *p1, void *p2, void *p3, void *p4, void *p5,
208 *(u32 *) p0, *(u32 *) p1, *(u32 *) p2, *(u32 *) p3,
209 *(u32 *) p4, *(u32 *) p5, *(u32 *) p6, *(u32 *) p7,
215 static_always_inline void
216 u64x4_scatter (u64x4 r, void *p0, void *p1, void *p2, void *p3)
224 static_always_inline void
225 u32x8_scatter (u32x8 r, void *p0, void *p1, void *p2, void *p3, void *p4,
226 void *p5, void *p6, void *p7)
238 static_always_inline void
239 u64x4_scatter_one (u64x4 r, int index, void *p)
241 *(u64 *) p = r[index];
244 static_always_inline void
245 u32x8_scatter_one (u32x8 r, int index, void *p)
247 *(u32 *) p = r[index];
250 static_always_inline u8x32
251 u8x32_is_greater (u8x32 v1, u8x32 v2)
253 return (u8x32) _mm256_cmpgt_epi8 ((__m256i) v1, (__m256i) v2);
256 static_always_inline u8x32
257 u8x32_blend (u8x32 v1, u8x32 v2, u8x32 mask)
259 return (u8x32) _mm256_blendv_epi8 ((__m256i) v1, (__m256i) v2,
263 #endif /* included_vector_avx2_h */
266 * fd.io coding-style-patch-verification: ON
269 * eval: (c-set-style "gnu")