1// Copyright 2022 Google LLC 2// 3// This source code is licensed under the BSD-style license found in the 4// LICENSE file in the root directory of this source tree. 5 6$assert BATCH_TILE % 8 == 0 7$assert BATCH_TILE >= 8 8$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 9#include <assert.h> 10 11#include <immintrin.h> 12 13#include <xnnpack/common.h> 14#include <xnnpack/vunary.h> 15 16 17void xnn_f16_vclamp_ukernel__f16c_x${BATCH_TILE}( 18 size_t n, 19 const void* restrict x_ptr, 20 void* restrict y_ptr, 21 const union xnn_f16_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS 22{ 23 assert(n != 0); 24 assert(n % sizeof(uint16_t) == 0); 25 assert(x_ptr != NULL); 26 assert(y_ptr != NULL); 27 28 const uint16_t* x = (const uint16_t*) x_ptr; 29 uint16_t* y = (uint16_t*) y_ptr; 30 31 const __m256 vy_min = _mm256_load_ps(params->avx.min); 32 const __m256 vy_max = _mm256_load_ps(params->avx.max); 33 34 $if BATCH_TILE > 8: 35 for (; n >= ${BATCH_TILE} * sizeof(uint16_t); n -= ${BATCH_TILE} * sizeof(uint16_t)) { 36 __m256 vacc${ABC[0:8]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 37 $for N in range(8, BATCH_TILE, 8): 38 __m256 vacc${ABC[N:N+8]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (x + ${N}))); 39 x += ${BATCH_TILE}; 40 41 $for N in range(0, BATCH_TILE, 8): 42 vacc${ABC[N:N+8]} = _mm256_max_ps(vacc${ABC[N:N+8]}, vy_min); 43 44 $for N in range(0, BATCH_TILE, 8): 45 vacc${ABC[N:N+8]} = _mm256_min_ps(vacc${ABC[N:N+8]}, vy_max); 46 47 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc${ABC[0:8]}, _MM_FROUND_NO_EXC)); 48 $for N in range(8, BATCH_TILE, 8): 49 _mm_storeu_si128((__m128i*) (y + ${N}), _mm256_cvtps_ph(vacc${ABC[N:N+8]}, _MM_FROUND_NO_EXC)); 50 y += ${BATCH_TILE}; 51 } 52 for (; n >= 8 * sizeof(uint16_t); n -= 8 * sizeof(uint16_t)) { 53 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 54 x += 8; 55 vacc = _mm256_max_ps(vacc, vy_min); 56 vacc = _mm256_min_ps(vacc, vy_max); 57 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC)); 58 y += 8; 59 } 60 if XNN_UNLIKELY(n != 0) { 61 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 62 vacc = _mm256_max_ps(vacc, vy_min); 63 vacc = _mm256_min_ps(vacc, vy_max); 64 65 __m128i vh = _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC); 66 if (n & (4 * sizeof(uint16_t))) { 67 _mm_storel_epi64((__m128i*) y, vh); 68 vh = _mm_unpackhi_epi64(vh, vh); 69 y += 4; 70 } 71 if (n & (2 * sizeof(uint16_t))) { 72 *((uint32_t*) y) = (uint32_t) _mm_cvtsi128_si32(vh); 73 vh = _mm_srli_epi64(vh, 32); 74 y += 2; 75 } 76 if (n & (1 * sizeof(uint16_t))) { 77 *y = _mm_extract_epi16(vh, 0); 78 } 79 } 80} 81