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$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 9#include <assert.h> 10 11#include <immintrin.h> 12 13#include <xnnpack/common.h> 14#include <xnnpack/intrinsics-polyfill.h> 15#include <xnnpack/vunary.h> 16 17 18void xnn_f16_vclamp_ukernel__f16c_x${BATCH_TILE}( 19 size_t n, 20 const void* restrict x_ptr, 21 void* restrict y_ptr, 22 const union xnn_f16_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS 23{ 24 assert(n != 0); 25 assert(n % sizeof(uint16_t) == 0); 26 assert(x_ptr != NULL); 27 assert(y_ptr != NULL); 28 29 const uint16_t* x = (const uint16_t*) x_ptr; 30 uint16_t* y = (uint16_t*) y_ptr; 31 32 const __m256 vy_min = _mm256_load_ps(params->avx.min); 33 const __m256 vy_max = _mm256_load_ps(params->avx.max); 34 35 $if BATCH_TILE > 8: 36 for (; n >= ${BATCH_TILE} * sizeof(uint16_t); n -= ${BATCH_TILE} * sizeof(uint16_t)) { 37 __m256 vacc${ABC[0:8]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 38 $for N in range(8, BATCH_TILE, 8): 39 __m256 vacc${ABC[N:N+8]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (x + ${N}))); 40 x += ${BATCH_TILE}; 41 42 $for N in range(0, BATCH_TILE, 8): 43 vacc${ABC[N:N+8]} = _mm256_max_ps(vacc${ABC[N:N+8]}, vy_min); 44 45 $for N in range(0, BATCH_TILE, 8): 46 vacc${ABC[N:N+8]} = _mm256_min_ps(vacc${ABC[N:N+8]}, vy_max); 47 48 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc${ABC[0:8]}, _MM_FROUND_NO_EXC)); 49 $for N in range(8, BATCH_TILE, 8): 50 _mm_storeu_si128((__m128i*) (y + ${N}), _mm256_cvtps_ph(vacc${ABC[N:N+8]}, _MM_FROUND_NO_EXC)); 51 y += ${BATCH_TILE}; 52 } 53 for (; n >= 8 * sizeof(uint16_t); n -= 8 * sizeof(uint16_t)) { 54 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 55 x += 8; 56 vacc = _mm256_max_ps(vacc, vy_min); 57 vacc = _mm256_min_ps(vacc, vy_max); 58 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC)); 59 y += 8; 60 } 61 if XNN_UNLIKELY(n != 0) { 62 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x)); 63 vacc = _mm256_max_ps(vacc, vy_min); 64 vacc = _mm256_min_ps(vacc, vy_max); 65 66 __m128i vh = _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC); 67 if (n & (4 * sizeof(uint16_t))) { 68 _mm_storel_epi64((__m128i*) y, vh); 69 vh = _mm_unpackhi_epi64(vh, vh); 70 y += 4; 71 } 72 if (n & (2 * sizeof(uint16_t))) { 73 _mm_storeu_si32(y, vh); 74 vh = _mm_srli_epi64(vh, 32); 75 y += 2; 76 } 77 if (n & (1 * sizeof(uint16_t))) { 78 *y = _mm_extract_epi16(vh, 0); 79 } 80 } 81} 82