diff options
| -rw-r--r-- | ggml-quants.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ggml-quants.c b/ggml-quants.c index ce654f09..73c3bb41 100644 --- a/ggml-quants.c +++ b/ggml-quants.c @@ -10248,8 +10248,12 @@ void ggml_vec_dot_iq1_s_q8_K (int n, float * GGML_RESTRICT s, size_t bs, const uint64_t aux64; - __m256i v_gindex; - const uint16_t * gindex = (const uint16_t *)&v_gindex; + typedef union m256i_uint16 { + __m256i reg; + uint16_t s[16]; + } m256i_uint16_t; + + m256i_uint16_t v_gindex; __m256 accum = _mm256_setzero_ps(); for (int i = 0; i < nb; ++i) { @@ -10264,13 +10268,13 @@ void ggml_vec_dot_iq1_s_q8_K (int n, float * GGML_RESTRICT s, size_t bs, const memcpy(&aux64, sc, 8); sc += 8; const __m128i qh = _mm_shuffle_epi8(_mm_set_epi64x(aux64 >> 4, aux64), shuffle_h); const __m256i hbit = _mm256_cvtepu8_epi16(_mm_and_si128(qh, m8)); - v_gindex = _mm256_or_si256(_mm256_cvtepu8_epi16(ql), _mm256_slli_epi16(hbit, 5)); + v_gindex.reg = _mm256_or_si256(_mm256_cvtepu8_epi16(ql), _mm256_slli_epi16(hbit, 5)); const __m128i scales = _mm_or_si128(_mm_slli_epi16(_mm_and_si128(qh, m7), 1), m1); for (int i32 = 0; i32 < 4; ++i32) { const __m256i q8b = _mm256_loadu_si256((const __m256i*)q8); q8 += 32; - const __m256i q1b = _mm256_set_epi64x(iq1s_grid[gindex[4*i32+3]], iq1s_grid[gindex[4*i32+2]], - iq1s_grid[gindex[4*i32+1]], iq1s_grid[gindex[4*i32+0]]); + const __m256i q1b = _mm256_set_epi64x(iq1s_grid[v_gindex.s[4*i32+3]], iq1s_grid[v_gindex.s[4*i32+2]], + iq1s_grid[v_gindex.s[4*i32+1]], iq1s_grid[v_gindex.s[4*i32+0]]); const __m256i dot = mul_add_epi8(q1b, q8b); const __m256i s16 = _mm256_cvtepi8_epi16(_mm_shuffle_epi8(scales, shuffle_s[i32])); const __m256i p = _mm256_madd_epi16(s16, dot); |