1*4bdc9457SAndroid Build Coastguard Worker// Copyright 2022 Google LLC 2*4bdc9457SAndroid Build Coastguard Worker// 3*4bdc9457SAndroid Build Coastguard Worker// This source code is licensed under the BSD-style license found in the 4*4bdc9457SAndroid Build Coastguard Worker// LICENSE file in the root directory of this source tree. 5*4bdc9457SAndroid Build Coastguard Worker 6*4bdc9457SAndroid Build Coastguard Worker$assert BATCH_TILE >= 16 7*4bdc9457SAndroid Build Coastguard Worker$assert BATCH_TILE % 16 == 0 8*4bdc9457SAndroid Build Coastguard Worker$SIMD_TILE = BATCH_TILE // 16 9*4bdc9457SAndroid Build Coastguard Worker$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 10*4bdc9457SAndroid Build Coastguard Worker#include <assert.h> 11*4bdc9457SAndroid Build Coastguard Worker 12*4bdc9457SAndroid Build Coastguard Worker#include <tmmintrin.h> 13*4bdc9457SAndroid Build Coastguard Worker 14*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/common.h> 15*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/vcvt.h> 16*4bdc9457SAndroid Build Coastguard Worker#include <xnnpack/unaligned.h> 17*4bdc9457SAndroid Build Coastguard Worker 18*4bdc9457SAndroid Build Coastguard Worker 19*4bdc9457SAndroid Build Coastguard Worker$XINT8_T = {"QS8": "int8_t", "QU8": "uint8_t"}[DATATYPE] 20*4bdc9457SAndroid Build Coastguard Worker$_MM_PACKXS_EPI16 = {"QS8": "_mm_packs_epi16", "QU8": "_mm_packus_epi16"}[DATATYPE] 21*4bdc9457SAndroid Build Coastguard Workervoid xnn_${DATATYPE.lower()}_vcvt_ukernel__ssse3_x${BATCH_TILE}( 22*4bdc9457SAndroid Build Coastguard Worker size_t n, 23*4bdc9457SAndroid Build Coastguard Worker const ${XINT8_T}* x, 24*4bdc9457SAndroid Build Coastguard Worker ${XINT8_T}* y, 25*4bdc9457SAndroid Build Coastguard Worker const union xnn_${DATATYPE.lower()}_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS 26*4bdc9457SAndroid Build Coastguard Worker{ 27*4bdc9457SAndroid Build Coastguard Worker assert(n != 0); 28*4bdc9457SAndroid Build Coastguard Worker assert(n % sizeof(${XINT8_T}) == 0); 29*4bdc9457SAndroid Build Coastguard Worker assert(x != NULL); 30*4bdc9457SAndroid Build Coastguard Worker assert(y != NULL); 31*4bdc9457SAndroid Build Coastguard Worker 32*4bdc9457SAndroid Build Coastguard Worker const __m128i vinput_zero_point = _mm_load_si128((const __m128i*) params->ssse3.input_zero_point); 33*4bdc9457SAndroid Build Coastguard Worker const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->ssse3.multiplier); 34*4bdc9457SAndroid Build Coastguard Worker const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->ssse3.output_zero_point); 35*4bdc9457SAndroid Build Coastguard Worker $if DATATYPE == "QU8": 36*4bdc9457SAndroid Build Coastguard Worker const __m128i vzero = _mm_setzero_si128(); 37*4bdc9457SAndroid Build Coastguard Worker $if BATCH_TILE > 8: 38*4bdc9457SAndroid Build Coastguard Worker for (; n >= ${BATCH_TILE} * sizeof(${XINT8_T}); n -= ${BATCH_TILE} * sizeof(${XINT8_T})) { 39*4bdc9457SAndroid Build Coastguard Worker const __m128i vx${ABC[0]} = _mm_loadu_si128((const __m128i*) x); 40*4bdc9457SAndroid Build Coastguard Worker $for N in range(1, SIMD_TILE): 41*4bdc9457SAndroid Build Coastguard Worker const __m128i vx${ABC[N]} = _mm_loadu_si128((const __m128i*) (x + ${N * 16})); 42*4bdc9457SAndroid Build Coastguard Worker x += ${BATCH_TILE}; 43*4bdc9457SAndroid Build Coastguard Worker 44*4bdc9457SAndroid Build Coastguard Worker $for N in range(SIMD_TILE): 45*4bdc9457SAndroid Build Coastguard Worker $if DATATYPE == "QU8": 46*4bdc9457SAndroid Build Coastguard Worker __m128i vacc${ABC[2*N]} = _mm_unpacklo_epi8(vx${ABC[N]}, vzero); 47*4bdc9457SAndroid Build Coastguard Worker __m128i vacc${ABC[2*N+1]} = _mm_unpackhi_epi8(vx${ABC[N]}, vzero); 48*4bdc9457SAndroid Build Coastguard Worker $else: 49*4bdc9457SAndroid Build Coastguard Worker const __m128i vm${ABC[N]} = _mm_cmpgt_epi8(_mm_setzero_si128(), vx${ABC[N]}); 50*4bdc9457SAndroid Build Coastguard Worker __m128i vacc${ABC[2*N]} = _mm_unpacklo_epi8(vx${ABC[N]}, vm${ABC[N]}); 51*4bdc9457SAndroid Build Coastguard Worker __m128i vacc${ABC[2*N+1]} = _mm_unpackhi_epi8(vx${ABC[N]}, vm${ABC[N]}); 52*4bdc9457SAndroid Build Coastguard Worker 53*4bdc9457SAndroid Build Coastguard Worker $for N in range(2*SIMD_TILE): 54*4bdc9457SAndroid Build Coastguard Worker vacc${ABC[N]} = _mm_sub_epi16(vinput_zero_point, vacc${ABC[N]}); 55*4bdc9457SAndroid Build Coastguard Worker 56*4bdc9457SAndroid Build Coastguard Worker $for N in range(2*SIMD_TILE): 57*4bdc9457SAndroid Build Coastguard Worker vacc${ABC[N]} = _mm_slli_epi16(vacc${ABC[N]}, 7); 58*4bdc9457SAndroid Build Coastguard Worker 59*4bdc9457SAndroid Build Coastguard Worker $for N in range(2*SIMD_TILE): 60*4bdc9457SAndroid Build Coastguard Worker vacc${ABC[N]} = _mm_mulhrs_epi16(vacc${ABC[N]}, vmultiplier); 61*4bdc9457SAndroid Build Coastguard Worker 62*4bdc9457SAndroid Build Coastguard Worker $for N in range(2*SIMD_TILE): 63*4bdc9457SAndroid Build Coastguard Worker vacc${ABC[N]} = _mm_adds_epi16(vacc${ABC[N]}, voutput_zero_point); 64*4bdc9457SAndroid Build Coastguard Worker 65*4bdc9457SAndroid Build Coastguard Worker $for N in range(SIMD_TILE): 66*4bdc9457SAndroid Build Coastguard Worker const __m128i vy${ABC[N]} = ${_MM_PACKXS_EPI16}(vacc${ABC[2*N]}, vacc${ABC[2*N+1]}); 67*4bdc9457SAndroid Build Coastguard Worker 68*4bdc9457SAndroid Build Coastguard Worker _mm_storeu_si128((__m128i*) y, vy${ABC[0]}); 69*4bdc9457SAndroid Build Coastguard Worker $for N in range(1, SIMD_TILE): 70*4bdc9457SAndroid Build Coastguard Worker _mm_storeu_si128((__m128i*) (y + ${N * 16}), vy${ABC[N]}); 71*4bdc9457SAndroid Build Coastguard Worker y += ${BATCH_TILE}; 72*4bdc9457SAndroid Build Coastguard Worker } 73*4bdc9457SAndroid Build Coastguard Worker for (; n >= 16 * sizeof(${XINT8_T}); n -= 16 * sizeof(${XINT8_T})) { 74*4bdc9457SAndroid Build Coastguard Worker const __m128i vx = _mm_loadu_si128((const __m128i*) x); 75*4bdc9457SAndroid Build Coastguard Worker x += 16; 76*4bdc9457SAndroid Build Coastguard Worker 77*4bdc9457SAndroid Build Coastguard Worker $if DATATYPE == "QU8": 78*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_lo = _mm_unpacklo_epi8(vx, vzero); 79*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_hi = _mm_unpackhi_epi8(vx, vzero); 80*4bdc9457SAndroid Build Coastguard Worker $else: 81*4bdc9457SAndroid Build Coastguard Worker const __m128i vm = _mm_cmpgt_epi8(_mm_setzero_si128(), vx); 82*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_lo = _mm_unpacklo_epi8(vx, vm); 83*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_hi = _mm_unpackhi_epi8(vx, vm); 84*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_sub_epi16(vinput_zero_point, vacc_lo); 85*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_sub_epi16(vinput_zero_point, vacc_hi); 86*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_slli_epi16(vacc_lo, 7); 87*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_slli_epi16(vacc_hi, 7); 88*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_mulhrs_epi16(vacc_lo, vmultiplier); 89*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_mulhrs_epi16(vacc_hi, vmultiplier); 90*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_adds_epi16(vacc_lo, voutput_zero_point); 91*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_adds_epi16(vacc_hi, voutput_zero_point); 92*4bdc9457SAndroid Build Coastguard Worker 93*4bdc9457SAndroid Build Coastguard Worker const __m128i vy = ${_MM_PACKXS_EPI16}(vacc_lo, vacc_hi); 94*4bdc9457SAndroid Build Coastguard Worker _mm_storeu_si128((__m128i*) y, vy); 95*4bdc9457SAndroid Build Coastguard Worker y += 16; 96*4bdc9457SAndroid Build Coastguard Worker } 97*4bdc9457SAndroid Build Coastguard Worker if XNN_UNLIKELY(n != 0) { 98*4bdc9457SAndroid Build Coastguard Worker assert(n >= 1 * sizeof(${XINT8_T})); 99*4bdc9457SAndroid Build Coastguard Worker assert(n <= 15 * sizeof(${XINT8_T})); 100*4bdc9457SAndroid Build Coastguard Worker 101*4bdc9457SAndroid Build Coastguard Worker const __m128i vx = _mm_loadu_si128((const __m128i*) x); 102*4bdc9457SAndroid Build Coastguard Worker 103*4bdc9457SAndroid Build Coastguard Worker $if DATATYPE == "QU8": 104*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_lo = _mm_unpacklo_epi8(vx, vzero); 105*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_hi = _mm_unpackhi_epi8(vx, vzero); 106*4bdc9457SAndroid Build Coastguard Worker $else: 107*4bdc9457SAndroid Build Coastguard Worker const __m128i vm = _mm_cmpgt_epi8(_mm_setzero_si128(), vx); 108*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_lo = _mm_unpacklo_epi8(vx, vm); 109*4bdc9457SAndroid Build Coastguard Worker __m128i vacc_hi = _mm_unpackhi_epi8(vx, vm); 110*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_sub_epi16(vinput_zero_point, vacc_lo); 111*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_sub_epi16(vinput_zero_point, vacc_hi); 112*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_slli_epi16(vacc_lo, 7); 113*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_slli_epi16(vacc_hi, 7); 114*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_mulhrs_epi16(vacc_lo, vmultiplier); 115*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_mulhrs_epi16(vacc_hi, vmultiplier); 116*4bdc9457SAndroid Build Coastguard Worker vacc_lo = _mm_adds_epi16(vacc_lo, voutput_zero_point); 117*4bdc9457SAndroid Build Coastguard Worker vacc_hi = _mm_adds_epi16(vacc_hi, voutput_zero_point); 118*4bdc9457SAndroid Build Coastguard Worker 119*4bdc9457SAndroid Build Coastguard Worker __m128i vy = ${_MM_PACKXS_EPI16}(vacc_lo, vacc_hi); 120*4bdc9457SAndroid Build Coastguard Worker if (n & (8 * sizeof(${XINT8_T}))) { 121*4bdc9457SAndroid Build Coastguard Worker _mm_storel_epi64((__m128i*) y, vy); 122*4bdc9457SAndroid Build Coastguard Worker vy = _mm_unpackhi_epi64(vy, vy); 123*4bdc9457SAndroid Build Coastguard Worker y += 8; 124*4bdc9457SAndroid Build Coastguard Worker } 125*4bdc9457SAndroid Build Coastguard Worker if (n & (4 * sizeof(${XINT8_T}))) { 126*4bdc9457SAndroid Build Coastguard Worker unaligned_store_u32(y, (uint32_t) _mm_cvtsi128_si32(vy)); 127*4bdc9457SAndroid Build Coastguard Worker vy = _mm_srli_epi64(vy, 32); 128*4bdc9457SAndroid Build Coastguard Worker y += 4; 129*4bdc9457SAndroid Build Coastguard Worker } 130*4bdc9457SAndroid Build Coastguard Worker uint32_t vy_lo = (uint32_t) _mm_cvtsi128_si32(vy); 131*4bdc9457SAndroid Build Coastguard Worker if (n & (2 * sizeof(${XINT8_T}))) { 132*4bdc9457SAndroid Build Coastguard Worker unaligned_store_u16(y, (uint16_t) vy_lo); 133*4bdc9457SAndroid Build Coastguard Worker vy_lo >>= 16; 134*4bdc9457SAndroid Build Coastguard Worker y += 2; 135*4bdc9457SAndroid Build Coastguard Worker } 136*4bdc9457SAndroid Build Coastguard Worker if (n & (1 * sizeof(${XINT8_T}))) { 137*4bdc9457SAndroid Build Coastguard Worker *y = (${XINT8_T}) vy_lo; 138*4bdc9457SAndroid Build Coastguard Worker } 139*4bdc9457SAndroid Build Coastguard Worker } 140*4bdc9457SAndroid Build Coastguard Worker} 141