1// Copyright 2020 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$assert BATCH_TILE % 4 == 0 7$assert BATCH_TILE >= 4 8$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 9#include <assert.h> 10 11#include <xmmintrin.h> 12 13#include <xnnpack/vunary.h> 14#include <xnnpack/common.h> 15 16 17void xnn_f32_relu_ukernel__sse_x${BATCH_TILE}( 18 size_t n, 19 const float* x, 20 float* y, 21 const union xnn_f32_relu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN 22{ 23 assert(n != 0); 24 assert(n % sizeof(float) == 0); 25 assert(x != NULL); 26 assert(y != NULL); 27 28 const __m128 vzero = _mm_setzero_ps(); 29 30 for (; n >= ${BATCH_TILE} * sizeof(float); n -= ${BATCH_TILE} * sizeof(float)) { 31 __m128 vacc${ABC[0:4]} = _mm_loadu_ps(x); 32 $for N in range(4, BATCH_TILE, 4): 33 __m128 vacc${ABC[N:N+4]} = _mm_loadu_ps(x + ${N}); 34 x += ${BATCH_TILE}; 35 36 $for N in range(0, BATCH_TILE, 4): 37 vacc${ABC[N:N+4]} = _mm_max_ps(vacc${ABC[N:N+4]}, vzero); 38 39 _mm_storeu_ps(y, vacc${ABC[0:4]}); 40 $for N in range(4, BATCH_TILE, 4): 41 _mm_storeu_ps(y + ${N}, vacc${ABC[N:N+4]}); 42 y += ${BATCH_TILE}; 43 } 44 $if BATCH_TILE > 4: 45 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { 46 __m128 vacc = _mm_loadu_ps(x); 47 x += 4; 48 49 vacc = _mm_max_ps(vacc, vzero); 50 51 _mm_storeu_ps(y, vacc); 52 y += 4; 53 } 54 if XNN_UNLIKELY(n != 0) { 55 __m128 vacc = _mm_loadu_ps(x); 56 vacc = _mm_max_ps(vacc, vzero); 57 58 if (n & (2 * sizeof(float))) { 59 _mm_storel_pi((__m64*) y, vacc); 60 vacc = _mm_movehl_ps(vacc, vacc); 61 y += 2; 62 } 63 if (n & (1 * sizeof(float))) { 64 _mm_store_ss(y, vacc); 65 } 66 } 67} 68