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$ABC = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ" 9$assert OP in ["ABS", "NEG", "SQR"] 10#include <assert.h> 11 12#include <arm_neon.h> 13 14#include <xnnpack/common.h> 15#include <xnnpack/vunary.h> 16 17 18$VOPQ_F32 = { 19$ "ABS": lambda x: "vabsq_f32(%s)" % x, 20$ "NEG": lambda x: "vnegq_f32(%s)" % x, 21$ "SQR": lambda x: "vmulq_f32(%s, %s)" % (x, x), 22$}[OP] 23$PARAMS = { 24$ "ABS": "const union xnn_f32_abs_params params[restrict XNN_MIN_ELEMENTS(1)]", 25$ "NEG": "const union xnn_f32_neg_params params[restrict XNN_MIN_ELEMENTS(1)]", 26$ "SQR": "const void* params", 27$}[OP] 28void xnn_f32_v${OP.lower()}_ukernel__neon_x${BATCH_TILE}( 29 size_t n, 30 const float* x, 31 float* y, 32 ${PARAMS}) XNN_DISABLE_TSAN 33{ 34 assert(n != 0); 35 assert(n % sizeof(float) == 0); 36 assert(x != NULL); 37 assert(y != NULL); 38 39 for (; n >= ${BATCH_TILE} * sizeof(float); n -= ${BATCH_TILE} * sizeof(float)) { 40 $for N in range(0, BATCH_TILE, 4): 41 const float32x4_t vx${ABC[N:N+4]} = vld1q_f32(x); x += 4; 42 43 $for N in range(0, BATCH_TILE, 4): 44 const float32x4_t vy${ABC[N:N+4]} = ${VOPQ_F32("vx" + ABC[N:N+4])}; 45 46 $for N in range(0, BATCH_TILE, 4): 47 vst1q_f32(y, vy${ABC[N:N+4]}); y += 4; 48 } 49 $if BATCH_TILE > 4: 50 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) { 51 const float32x4_t vx = vld1q_f32(x); x += 4; 52 const float32x4_t vy = ${VOPQ_F32("vx")}; 53 vst1q_f32(y, vy); y += 4; 54 } 55 if XNN_UNLIKELY(n != 0) { 56 const float32x4_t vx = vld1q_f32(x); 57 const float32x4_t vy = ${VOPQ_F32("vx")}; 58 float32x2_t vy_lo = vget_low_f32(vy); 59 if (n & (2 * sizeof(float))) { 60 vst1_f32(y, vy_lo); y += 2; 61 vy_lo = vget_high_f32(vy); 62 } 63 if (n & (1 * sizeof(float))) { 64 vst1_lane_f32(y, vy_lo, 0); 65 } 66 } 67} 68