#include <vppinfra/clib.h>
#include <x86intrin.h>
+/* *INDENT-OFF* */
#define foreach_avx2_vec256i \
- _(i,8,32,epi8) _(i,16,16,epi16) _(i,32,8,epi32) _(i,64,4,epi64x)
+ _(i,8,32,epi8) _(i,16,16,epi16) _(i,32,8,epi32) _(i,64,4,epi64)
#define foreach_avx2_vec256u \
- _(u,8,32,epi8) _(u,16,16,epi16) _(u,32,8,epi32) _(u,64,4,epi64x)
+ _(u,8,32,epi8) _(u,16,16,epi16) _(u,32,8,epi32) _(u,64,4,epi64)
#define foreach_avx2_vec256f \
_(f,32,8,ps) _(f,64,4,pd)
-/* splat, load_unaligned, store_unaligned, is_all_zero, is_all_equal */
+#define _mm256_set1_epi64 _mm256_set1_epi64x
+
+/* splat, load_unaligned, store_unaligned, is_all_zero, is_equal,
+ is_all_equal */
#define _(t, s, c, i) \
static_always_inline t##s##x##c \
t##s##x##c##_splat (t##s x) \
{ return _mm256_testz_si256 ((__m256i) x, (__m256i) x); } \
\
static_always_inline int \
+t##s##x##c##_is_equal (t##s##x##c a, t##s##x##c b) \
+{ return t##s##x##c##_is_all_zero (a ^ b); } \
+\
+static_always_inline int \
t##s##x##c##_is_all_equal (t##s##x##c v, t##s x) \
-{ return t##s##x##c##_is_all_zero (v != t##s##x##c##_splat (x)); }; \
+{ return t##s##x##c##_is_equal (v, t##s##x##c##_splat (x)); } \
+\
+static_always_inline t##s##x##c \
+t##s##x##c##_interleave_lo (t##s##x##c a, t##s##x##c b) \
+{ return (t##s##x##c) _mm256_unpacklo_##i ((__m256i) a, (__m256i) b); } \
\
+static_always_inline t##s##x##c \
+t##s##x##c##_interleave_hi (t##s##x##c a, t##s##x##c b) \
+{ return (t##s##x##c) _mm256_unpackhi_##i ((__m256i) a, (__m256i) b); } \
+
foreach_avx2_vec256i foreach_avx2_vec256u
#undef _
- always_inline u32x8
+/* *INDENT-ON* */
+
+always_inline u32x8
u32x8_permute (u32x8 v, u32x8 idx)
{
return (u32x8) _mm256_permutevar8x32_epi32 ((__m256i) v, (__m256i) idx);
}
-always_inline u32x4
-u32x8_extract_lo (u32x8 v)
+#define u64x4_permute(v, m0, m1, m2, m3) \
+ (u64x4) _mm256_permute4x64_epi64 ( \
+ (__m256i) v, ((m0) | (m1) << 2 | (m2) << 4 | (m3) << 6))
+
+/* _extract_lo, _extract_hi */
+/* *INDENT-OFF* */
+#define _(t1,t2) \
+always_inline t1 \
+t2##_extract_lo (t2 v) \
+{ return (t1) _mm256_extracti128_si256 ((__m256i) v, 0); } \
+\
+always_inline t1 \
+t2##_extract_hi (t2 v) \
+{ return (t1) _mm256_extracti128_si256 ((__m256i) v, 1); } \
+\
+always_inline t2 \
+t2##_insert_lo (t2 v1, t1 v2) \
+{ return (t2) _mm256_inserti128_si256 ((__m256i) v1, (__m128i) v2, 0); }\
+\
+always_inline t2 \
+t2##_insert_hi (t2 v1, t1 v2) \
+{ return (t2) _mm256_inserti128_si256 ((__m256i) v1, (__m128i) v2, 1); }\
+
+_(u8x16, u8x32)
+_(u16x8, u16x16)
+_(u32x4, u32x8)
+_(u64x2, u64x4)
+#undef _
+/* *INDENT-ON* */
+
+/* 256 bit packs. */
+#define _(f, t, fn) \
+ always_inline t t##_pack (f lo, f hi) \
+ { \
+ return (t) fn ((__m256i) lo, (__m256i) hi); \
+ }
+
+_ (i16x16, i8x32, _mm256_packs_epi16)
+_ (i16x16, u8x32, _mm256_packus_epi16)
+_ (i32x8, i16x16, _mm256_packs_epi32)
+_ (i32x8, u16x16, _mm256_packus_epi32)
+
+#undef _
+
+static_always_inline u32
+u8x32_msb_mask (u8x32 v)
+{
+ return _mm256_movemask_epi8 ((__m256i) v);
+}
+
+static_always_inline u32
+i8x32_msb_mask (i8x32 v)
+{
+ return _mm256_movemask_epi8 ((__m256i) v);
+}
+
+/* _from_ */
+/* *INDENT-OFF* */
+#define _(f,t,i) \
+static_always_inline t \
+t##_from_##f (f x) \
+{ return (t) _mm256_cvt##i ((__m128i) x); }
+
+_(u16x8, u32x8, epu16_epi32)
+_(u16x8, u64x4, epu16_epi64)
+_(u32x4, u64x4, epu32_epi64)
+_ (u8x16, u16x16, epu8_epi16)
+_(u8x16, u32x8, epu8_epi32)
+_(u8x16, u64x4, epu8_epi64)
+_(i16x8, i32x8, epi16_epi32)
+_(i16x8, i64x4, epi16_epi64)
+_(i32x4, i64x4, epi32_epi64)
+_ (i8x16, i16x16, epi8_epi16)
+_(i8x16, i32x8, epi8_epi32)
+_(i8x16, i64x4, epi8_epi64)
+#undef _
+/* *INDENT-ON* */
+
+static_always_inline u64x4
+u64x4_byte_swap (u64x4 v)
+{
+ u8x32 swap = {
+ 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8,
+ 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8,
+ };
+ return (u64x4) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) swap);
+}
+
+static_always_inline u32x8
+u32x8_byte_swap (u32x8 v)
+{
+ u8x32 swap = {
+ 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12,
+ 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+ };
+ return (u32x8) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) swap);
+}
+
+static_always_inline u16x16
+u16x16_byte_swap (u16x16 v)
+{
+ u8x32 swap = {
+ 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14,
+ 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14
+ };
+ return (u16x16) _mm256_shuffle_epi8 ((__m256i) v, (__m256i) swap);
+}
+
+#define u8x32_align_right(a, b, imm) \
+ (u8x32) _mm256_alignr_epi8 ((__m256i) a, (__m256i) b, imm)
+
+#define u64x4_align_right(a, b, imm) \
+ (u64x4) _mm256_alignr_epi64 ((__m256i) a, (__m256i) b, imm)
+
+static_always_inline u32
+u32x8_sum_elts (u32x8 sum8)
+{
+ sum8 += (u32x8) u8x32_align_right (sum8, sum8, 8);
+ sum8 += (u32x8) u8x32_align_right (sum8, sum8, 4);
+ return sum8[0] + sum8[4];
+}
+
+static_always_inline u32x8
+u32x8_hadd (u32x8 v1, u32x8 v2)
+{
+ return (u32x8) _mm256_hadd_epi32 ((__m256i) v1, (__m256i) v2);
+}
+
+static_always_inline u32
+u32x8_hxor (u32x8 v)
+{
+ u32x4 v4;
+ v4 = u32x8_extract_lo (v) ^ u32x8_extract_hi (v);
+ v4 ^= (u32x4) u8x16_align_right (v4, v4, 8);
+ v4 ^= (u32x4) u8x16_align_right (v4, v4, 4);
+ return v4[0];
+}
+
+static_always_inline u8x32
+u8x32_xor3 (u8x32 a, u8x32 b, u8x32 c)
+{
+#if __AVX512F__
+ return (u8x32) _mm256_ternarylogic_epi32 ((__m256i) a, (__m256i) b,
+ (__m256i) c, 0x96);
+#endif
+ return a ^ b ^ c;
+}
+
+static_always_inline u8x32
+u8x32_reflect_u8x16 (u8x32 x)
+{
+ static const u8x32 mask = {
+ 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
+ 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0,
+ };
+ return (u8x32) _mm256_shuffle_epi8 ((__m256i) x, (__m256i) mask);
+}
+
+static_always_inline u16x16
+u16x16_mask_last (u16x16 v, u8 n_last)
+{
+ const u16x16 masks[17] = {
+ {0},
+ {-1},
+ {-1, -1},
+ {-1, -1, -1},
+ {-1, -1, -1, -1},
+ {-1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
+ };
+
+ ASSERT (n_last < 17);
+
+ return v & masks[16 - n_last];
+}
+
+static_always_inline f32x8
+f32x8_from_u32x8 (u32x8 v)
+{
+ return (f32x8) _mm256_cvtepi32_ps ((__m256i) v);
+}
+
+static_always_inline u32x8
+u32x8_from_f32x8 (f32x8 v)
+{
+ return (u32x8) _mm256_cvttps_epi32 ((__m256) v);
+}
+
+#define u32x8_blend(a,b,m) \
+ (u32x8) _mm256_blend_epi32 ((__m256i) a, (__m256i) b, m)
+
+#define u16x16_blend(v1, v2, mask) \
+ (u16x16) _mm256_blend_epi16 ((__m256i) (v1), (__m256i) (v2), mask)
+
+static_always_inline u64x4
+u64x4_gather (void *p0, void *p1, void *p2, void *p3)
+{
+ u64x4 r = {
+ *(u64 *) p0, *(u64 *) p1, *(u64 *) p2, *(u64 *) p3
+ };
+ return r;
+}
+
+static_always_inline u32x8
+u32x8_gather (void *p0, void *p1, void *p2, void *p3, void *p4, void *p5,
+ void *p6, void *p7)
+{
+ u32x8 r = {
+ *(u32 *) p0, *(u32 *) p1, *(u32 *) p2, *(u32 *) p3,
+ *(u32 *) p4, *(u32 *) p5, *(u32 *) p6, *(u32 *) p7,
+ };
+ return r;
+}
+
+
+static_always_inline void
+u64x4_scatter (u64x4 r, void *p0, void *p1, void *p2, void *p3)
+{
+ *(u64 *) p0 = r[0];
+ *(u64 *) p1 = r[1];
+ *(u64 *) p2 = r[2];
+ *(u64 *) p3 = r[3];
+}
+
+static_always_inline void
+u32x8_scatter (u32x8 r, void *p0, void *p1, void *p2, void *p3, void *p4,
+ void *p5, void *p6, void *p7)
+{
+ *(u32 *) p0 = r[0];
+ *(u32 *) p1 = r[1];
+ *(u32 *) p2 = r[2];
+ *(u32 *) p3 = r[3];
+ *(u32 *) p4 = r[4];
+ *(u32 *) p5 = r[5];
+ *(u32 *) p6 = r[6];
+ *(u32 *) p7 = r[7];
+}
+
+static_always_inline void
+u64x4_scatter_one (u64x4 r, int index, void *p)
+{
+ *(u64 *) p = r[index];
+}
+
+static_always_inline void
+u32x8_scatter_one (u32x8 r, int index, void *p)
+{
+ *(u32 *) p = r[index];
+}
+
+#define u32x8_gather_u32(base, indices, scale) \
+ (u32x8) _mm256_i32gather_epi32 ((const int *) base, (__m256i) indices, scale)
+
+#ifdef __AVX512F__
+#define u32x8_scatter_u32(base, indices, v, scale) \
+ _mm256_i32scatter_epi32 (base, (__m256i) indices, (__m256i) v, scale)
+#else
+#define u32x8_scatter_u32(base, indices, v, scale) \
+ for (u32 i = 0; i < 8; i++) \
+ *((u32u *) ((u8 *) base + (scale) * (indices)[i])) = (v)[i];
+#endif
+
+static_always_inline u8x32
+u8x32_blend (u8x32 v1, u8x32 v2, u8x32 mask)
+{
+ return (u8x32) _mm256_blendv_epi8 ((__m256i) v1, (__m256i) v2,
+ (__m256i) mask);
+}
+
+#define u8x32_word_shift_left(a, n) \
+ (u8x32) _mm256_bslli_epi128 ((__m256i) a, n)
+#define u8x32_word_shift_right(a, n) \
+ (u8x32) _mm256_bsrli_epi128 ((__m256i) a, n)
+
+#define u32x8_permute_lanes(a, b, m) \
+ (u32x8) _mm256_permute2x128_si256 ((__m256i) a, (__m256i) b, m)
+#define u64x4_permute_lanes(a, b, m) \
+ (u64x4) _mm256_permute2x128_si256 ((__m256i) a, (__m256i) b, m)
+
+static_always_inline u32x8
+u32x8_min (u32x8 a, u32x8 b)
+{
+ return (u32x8) _mm256_min_epu32 ((__m256i) a, (__m256i) b);
+}
+
+static_always_inline u32
+u32x8_min_scalar (u32x8 v)
+{
+ return u32x4_min_scalar (u32x4_min (u32x8_extract_lo (v),
+ u32x8_extract_hi (v)));
+}
+
+static_always_inline void
+u32x8_transpose (u32x8 a[8])
+{
+ u64x4 r[8], x, y;
+
+ r[0] = (u64x4) u32x8_interleave_lo (a[0], a[1]);
+ r[1] = (u64x4) u32x8_interleave_hi (a[0], a[1]);
+ r[2] = (u64x4) u32x8_interleave_lo (a[2], a[3]);
+ r[3] = (u64x4) u32x8_interleave_hi (a[2], a[3]);
+ r[4] = (u64x4) u32x8_interleave_lo (a[4], a[5]);
+ r[5] = (u64x4) u32x8_interleave_hi (a[4], a[5]);
+ r[6] = (u64x4) u32x8_interleave_lo (a[6], a[7]);
+ r[7] = (u64x4) u32x8_interleave_hi (a[6], a[7]);
+
+ x = u64x4_interleave_lo (r[0], r[2]);
+ y = u64x4_interleave_lo (r[4], r[6]);
+ a[0] = u32x8_permute_lanes (x, y, 0x20);
+ a[4] = u32x8_permute_lanes (x, y, 0x31);
+
+ x = u64x4_interleave_hi (r[0], r[2]);
+ y = u64x4_interleave_hi (r[4], r[6]);
+ a[1] = u32x8_permute_lanes (x, y, 0x20);
+ a[5] = u32x8_permute_lanes (x, y, 0x31);
+
+ x = u64x4_interleave_lo (r[1], r[3]);
+ y = u64x4_interleave_lo (r[5], r[7]);
+ a[2] = u32x8_permute_lanes (x, y, 0x20);
+ a[6] = u32x8_permute_lanes (x, y, 0x31);
+
+ x = u64x4_interleave_hi (r[1], r[3]);
+ y = u64x4_interleave_hi (r[5], r[7]);
+ a[3] = u32x8_permute_lanes (x, y, 0x20);
+ a[7] = u32x8_permute_lanes (x, y, 0x31);
+}
+
+static_always_inline void
+u64x4_transpose (u64x4 a[8])
+{
+ u64x4 r[4];
+
+ r[0] = u64x4_interleave_lo (a[0], a[1]);
+ r[1] = u64x4_interleave_hi (a[0], a[1]);
+ r[2] = u64x4_interleave_lo (a[2], a[3]);
+ r[3] = u64x4_interleave_hi (a[2], a[3]);
+
+ a[0] = u64x4_permute_lanes (r[0], r[2], 0x20);
+ a[1] = u64x4_permute_lanes (r[1], r[3], 0x20);
+ a[2] = u64x4_permute_lanes (r[0], r[2], 0x31);
+ a[3] = u64x4_permute_lanes (r[1], r[3], 0x31);
+}
+
+static_always_inline u8x32
+u8x32_splat_u8x16 (u8x16 a)
+{
+ return (u8x32) _mm256_broadcastsi128_si256 ((__m128i) a);
+}
+
+static_always_inline u32x8
+u32x8_splat_u32x4 (u32x4 a)
+{
+ return (u32x8) _mm256_broadcastsi128_si256 ((__m128i) a);
+}
+
+static_always_inline u64x4
+u64x4_splat_u64x2 (u64x2 a)
+{
+ return (u64x4) _mm256_broadcastsi128_si256 ((__m128i) a);
+}
+
+static_always_inline u8x32
+u8x32_load_partial (u8 *data, uword n)
{
- return (u32x4) _mm256_extracti128_si256 ((__m256i) v, 0);
+#if defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
+ return u8x32_mask_load_zero (data, pow2_mask (n));
+#else
+ u8x32 r = {};
+ if (n > 16)
+ {
+ r = u8x32_insert_lo (r, *(u8x16u *) data);
+ r = u8x32_insert_hi (r, u8x16_load_partial (data + 16, n - 16));
+ }
+ else
+ r = u8x32_insert_lo (r, u8x16_load_partial (data, n));
+ return r;
+#endif
}
-always_inline u32x4
-u32x8_extract_hi (u32x8 v)
+static_always_inline void
+u8x32_store_partial (u8x32 r, u8 *data, uword n)
{
- return (u32x4) _mm256_extracti128_si256 ((__m256i) v, 1);
+#if defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
+ u8x32_mask_store (r, data, pow2_mask (n));
+#else
+ if (n > 16)
+ {
+ *(u8x16u *) data = u8x32_extract_lo (r);
+ u8x16_store_partial (u8x32_extract_hi (r), data + 16, n - 16);
+ }
+ else
+ u8x16_store_partial (u8x32_extract_lo (r), data, n);
+#endif
}
#endif /* included_vector_avx2_h */
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