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$SIMD_TILE = BATCH_TILE // 8 9$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 10$assert OP == "SQR" 11#include <assert.h> 12 13#include <immintrin.h> 14 15#include <xnnpack/common.h> 16#include <xnnpack/intrinsics-polyfill.h> 17#include <xnnpack/vunary.h> 18 19 20void xnn_f16_vsqr_ukernel__f16c_x${BATCH_TILE}( 21 size_t n, 22 const void* input, 23 void* output, 24 const union xnn_f16_default_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS 25{ 26 assert(n != 0); 27 assert(n % sizeof(uint16_t) == 0); 28 assert(input != NULL); 29 assert(output != NULL); 30 31 const uint16_t* i = (const uint16_t*) input; 32 uint16_t* o = (uint16_t*) output; 33 $if BATCH_TILE > 8: 34 for (; n >= ${BATCH_TILE} * sizeof(uint16_t); n -= ${BATCH_TILE} * sizeof(uint16_t)) { 35 __m256 vacc${ABC[0]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i)); 36 $for N in range(1, SIMD_TILE): 37 __m256 vacc${ABC[N]} = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (i + ${N*8}))); 38 i += ${BATCH_TILE}; 39 40 $for N in range(SIMD_TILE): 41 vacc${ABC[N]} = _mm256_mul_ps(vacc${ABC[N]}, vacc${ABC[N]}); 42 43 _mm_storeu_si128((__m128i*) o, _mm256_cvtps_ph(vacc${ABC[0]}, _MM_FROUND_NO_EXC)); 44 $for N in range(1, SIMD_TILE): 45 _mm_storeu_si128((__m128i*) (o + ${N*8}), _mm256_cvtps_ph(vacc${ABC[N]}, _MM_FROUND_NO_EXC)); 46 o += ${BATCH_TILE}; 47 } 48 for (; n >= 8 * sizeof(uint16_t); n -= 8 * sizeof(uint16_t)) { 49 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i)); 50 i += 8; 51 vacc = _mm256_mul_ps(vacc, vacc); 52 _mm_storeu_si128((__m128i*) o, _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC)); 53 o += 8; 54 } 55 if XNN_UNLIKELY(n != 0) { 56 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i)); 57 vacc = _mm256_mul_ps(vacc, vacc); 58 __m128i vh = _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC); 59 if (n & (4 * sizeof(uint16_t))) { 60 _mm_storel_epi64((__m128i*) o, vh); 61 o += 4; 62 vh = _mm_unpackhi_epi64(vh, vh); 63 } 64 if (n & (2 * sizeof(uint16_t))) { 65 _mm_storeu_si32(o, vh); 66 o += 2; 67 vh = _mm_srli_epi64(vh, 32); 68 } 69 if (n & (1 * sizeof(uint16_t))) { 70 *o = (uint16_t) _mm_extract_epi16(vh, 0); 71 } 72 } 73} 74