| // Auto-generated file. Do not edit! |
| // Template: src/f32-qs8-vcvt/avx512skx.c.in |
| // Generator: tools/xngen |
| // |
| // Copyright 2021 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #include <assert.h> |
| |
| #include <immintrin.h> |
| |
| #include <xnnpack/common.h> |
| #include <xnnpack/intrinsics-polyfill.h> |
| #include <xnnpack/vcvt.h> |
| |
| |
| void xnn_f32_qu8_vcvt_ukernel__avx512skx_x32( |
| size_t n, |
| const float* x, |
| uint8_t* y, |
| const union xnn_f32_qu8_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) |
| { |
| assert(n != 0); |
| assert(n % sizeof(float) == 0); |
| assert(x != NULL); |
| assert(y != NULL); |
| |
| const __m512 vscale = _mm512_load_ps(params->avx2.scale); |
| const __m512 voutput_max_less_zero_point = _mm512_load_ps(params->avx512.output_max_less_zero_point); |
| const __m512i voutput_zero_point = _mm512_load_si512(params->avx512.output_zero_point); |
| const __m256i vshuffle256_mask = _mm256_load_si256((const __m256i*) params->avx512.shuffle256_mask); |
| const __m256i voutput_min = _mm256_load_si256((const __m256i*) params->avx512.output_min); |
| for (; n >= 32 * sizeof(float); n -= 32 * sizeof(float)) { |
| __m512 vx0123 = _mm512_loadu_ps(x); |
| __m512 vx4567 = _mm512_loadu_ps(x + 16); |
| x += 32; |
| |
| vx0123 = _mm512_mul_ps(vx0123, vscale); |
| vx4567 = _mm512_mul_ps(vx4567, vscale); |
| |
| vx0123 = _mm512_min_ps(vx0123, voutput_max_less_zero_point); |
| vx4567 = _mm512_min_ps(vx4567, voutput_max_less_zero_point); |
| |
| const __m512i vacc0123 = _mm512_cvtps_epi32(vx0123); |
| const __m512i vacc4567 = _mm512_cvtps_epi32(vx4567); |
| |
| __m512i vacc04152637 = _mm512_packs_epi32(vacc0123, vacc4567); |
| |
| vacc04152637 = _mm512_adds_epi16(vacc04152637, voutput_zero_point); |
| |
| __m256i vy04261537 = _mm256_packus_epi16(_mm512_castsi512_si256(vacc04152637), _mm512_extracti32x8_epi32(vacc04152637, 1)); |
| |
| vy04261537 = _mm256_max_epu8(vy04261537, voutput_min); |
| |
| const __m256i vy01234567 = _mm256_permutevar8x32_epi32(vy04261537, vshuffle256_mask); |
| |
| _mm256_storeu_si256((__m256i*) y, vy01234567); |
| y += 32; |
| } |
| for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) { |
| __m512 vx0123 = _mm512_loadu_ps(x); |
| vx0123 = _mm512_mul_ps(vx0123, vscale); |
| vx0123 = _mm512_min_ps(vx0123, voutput_max_less_zero_point); |
| x += 16; |
| |
| const __m512i vacc0123 = _mm512_cvtps_epi32(vx0123); |
| |
| __m256i vacc0213 = _mm256_packs_epi32(_mm512_castsi512_si256(vacc0123), _mm512_extracti32x8_epi32(vacc0123, 1)); |
| vacc0213 = _mm256_adds_epi16(vacc0213, _mm512_castsi512_si256(voutput_zero_point)); |
| const __m128i vy0213 = _mm_packus_epi16(_mm256_castsi256_si128(vacc0213), _mm256_extracti128_si256(vacc0213, 1)); |
| __m128i vy0123 = _mm_shuffle_epi32(vy0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| vy0123 = _mm_max_epu8(vy0123, _mm256_castsi256_si128(voutput_min)); |
| |
| _mm_storeu_si128((__m128i*) y, vy0123); |
| y += 16; |
| } |
| if XNN_UNLIKELY(n != 0) { |
| assert(n >= 1 * sizeof(float)); |
| assert(n <= 15 * sizeof(float)); |
| |
| // Prepare mask for valid elements (depends on n). |
| n >>= 2 /* log2(sizeof(float)) */; |
| const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1))); |
| |
| __m512 vx0123 = _mm512_maskz_loadu_ps(vmask, x); |
| vx0123 = _mm512_mul_ps(vx0123, vscale); |
| vx0123 = _mm512_min_ps(vx0123, voutput_max_less_zero_point); |
| |
| const __m512i vacc0123 = _mm512_cvtps_epi32(vx0123); |
| |
| __m256i vacc0213 = _mm256_packs_epi32(_mm512_castsi512_si256(vacc0123), _mm512_extracti32x8_epi32(vacc0123, 1)); |
| vacc0213 = _mm256_adds_epi16(vacc0213, _mm512_castsi512_si256(voutput_zero_point)); |
| const __m128i vy0213 = _mm_packus_epi16(_mm256_castsi256_si128(vacc0213), _mm256_extracti128_si256(vacc0213, 1)); |
| __m128i vy0123 = _mm_shuffle_epi32(vy0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| vy0123 = _mm_max_epu8(vy0123, _mm256_castsi256_si128(voutput_min)); |
| |
| _mm_mask_storeu_epi8(y, vmask, vy0123); |
| } |
| } |