1 // Auto-generated file. Do not edit!
2 // Template: src/f32-prelu/neon.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2019 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <arm_neon.h>
13
14 #include <xnnpack/math.h>
15 #include <xnnpack/prelu.h>
16
17
xnn_f32_prelu_ukernel__neon_4x8(size_t rows,size_t channels,const float * restrict input,size_t input_stride,const float * restrict weights,float * restrict output,size_t output_stride)18 void xnn_f32_prelu_ukernel__neon_4x8(
19 size_t rows,
20 size_t channels,
21 const float*restrict input,
22 size_t input_stride,
23 const float*restrict weights,
24 float*restrict output,
25 size_t output_stride) XNN_DISABLE_TSAN
26 {
27 assert(rows != 0);
28 assert(channels != 0);
29 assert(channels % sizeof(float) == 0);
30
31 const float* i0 = input;
32 float* o0 = output;
33 const float* i1 = (const float*) ((uintptr_t) i0 + input_stride);
34 float* o1 = (float*) ((uintptr_t) o0 + output_stride);
35 if XNN_UNPREDICTABLE(rows < 2) {
36 i1 = i0;
37 o1 = o0;
38 }
39 const float* i2 = (const float*) ((uintptr_t) i1 + input_stride);
40 float* o2 = (float*) ((uintptr_t) o1 + output_stride);
41 if XNN_UNPREDICTABLE(rows <= 2) {
42 i2 = i1;
43 o2 = o1;
44 }
45 const float* i3 = (const float*) ((uintptr_t) i2 + input_stride);
46 float* o3 = (float*) ((uintptr_t) o2 + output_stride);
47 if XNN_UNPREDICTABLE(rows < 4) {
48 i3 = i2;
49 o3 = o2;
50 }
51
52 const size_t input_increment = input_stride * 4 - channels;
53 const size_t output_increment = output_stride * 4 - channels;
54
55 do {
56 const float* w = weights;
57 size_t c = channels;
58 for (; c >= 8 * sizeof(float); c -= 8 * sizeof(float)) {
59 const float32x4_t vw0123 = vld1q_f32(w); w += 4;
60 const float32x4_t vw4567 = vld1q_f32(w); w += 4;
61
62 const float32x4_t vi0x0123 = vld1q_f32(i0); i0 += 4;
63 const float32x4_t vi0x4567 = vld1q_f32(i0); i0 += 4;
64 const float32x4_t vi1x0123 = vld1q_f32(i1); i1 += 4;
65 const float32x4_t vi1x4567 = vld1q_f32(i1); i1 += 4;
66 const float32x4_t vi2x0123 = vld1q_f32(i2); i2 += 4;
67 const float32x4_t vi2x4567 = vld1q_f32(i2); i2 += 4;
68 const float32x4_t vi3x0123 = vld1q_f32(i3); i3 += 4;
69 const float32x4_t vi3x4567 = vld1q_f32(i3); i3 += 4;
70
71 float32x4_t vacc0x0123 = vmulq_f32(vi0x0123, vw0123);
72 const uint32x4_t vm0x0123 = vcltq_s32(vreinterpretq_s32_f32(vi0x0123), vmovq_n_s32(0));
73 float32x4_t vacc0x4567 = vmulq_f32(vi0x4567, vw4567);
74 const uint32x4_t vm0x4567 = vcltq_s32(vreinterpretq_s32_f32(vi0x4567), vmovq_n_s32(0));
75 float32x4_t vacc1x0123 = vmulq_f32(vi1x0123, vw0123);
76 const uint32x4_t vm1x0123 = vcltq_s32(vreinterpretq_s32_f32(vi1x0123), vmovq_n_s32(0));
77 float32x4_t vacc1x4567 = vmulq_f32(vi1x4567, vw4567);
78 const uint32x4_t vm1x4567 = vcltq_s32(vreinterpretq_s32_f32(vi1x4567), vmovq_n_s32(0));
79 float32x4_t vacc2x0123 = vmulq_f32(vi2x0123, vw0123);
80 const uint32x4_t vm2x0123 = vcltq_s32(vreinterpretq_s32_f32(vi2x0123), vmovq_n_s32(0));
81 float32x4_t vacc2x4567 = vmulq_f32(vi2x4567, vw4567);
82 const uint32x4_t vm2x4567 = vcltq_s32(vreinterpretq_s32_f32(vi2x4567), vmovq_n_s32(0));
83 float32x4_t vacc3x0123 = vmulq_f32(vi3x0123, vw0123);
84 const uint32x4_t vm3x0123 = vcltq_s32(vreinterpretq_s32_f32(vi3x0123), vmovq_n_s32(0));
85 float32x4_t vacc3x4567 = vmulq_f32(vi3x4567, vw4567);
86 const uint32x4_t vm3x4567 = vcltq_s32(vreinterpretq_s32_f32(vi3x4567), vmovq_n_s32(0));
87
88 vacc0x0123 = vbslq_f32(vm0x0123, vacc0x0123, vi0x0123);
89 vacc0x4567 = vbslq_f32(vm0x4567, vacc0x4567, vi0x4567);
90 vacc1x0123 = vbslq_f32(vm1x0123, vacc1x0123, vi1x0123);
91 vacc1x4567 = vbslq_f32(vm1x4567, vacc1x4567, vi1x4567);
92 vacc2x0123 = vbslq_f32(vm2x0123, vacc2x0123, vi2x0123);
93 vacc2x4567 = vbslq_f32(vm2x4567, vacc2x4567, vi2x4567);
94 vacc3x0123 = vbslq_f32(vm3x0123, vacc3x0123, vi3x0123);
95 vacc3x4567 = vbslq_f32(vm3x4567, vacc3x4567, vi3x4567);
96
97 vst1q_f32(o0, vacc0x0123); o0 += 4;
98 vst1q_f32(o0, vacc0x4567); o0 += 4;
99 vst1q_f32(o1, vacc1x0123); o1 += 4;
100 vst1q_f32(o1, vacc1x4567); o1 += 4;
101 vst1q_f32(o2, vacc2x0123); o2 += 4;
102 vst1q_f32(o2, vacc2x4567); o2 += 4;
103 vst1q_f32(o3, vacc3x0123); o3 += 4;
104 vst1q_f32(o3, vacc3x4567); o3 += 4;
105 }
106 for (; c >= 4 * sizeof(float); c -= 4 * sizeof(float)) {
107 const float32x4_t vw0123 = vld1q_f32(w); w += 4;
108
109 const float32x4_t vi0x0123 = vld1q_f32(i0);
110 i0 += 4;
111 const float32x4_t vi1x0123 = vld1q_f32(i1);
112 i1 += 4;
113 const float32x4_t vi2x0123 = vld1q_f32(i2);
114 i2 += 4;
115 const float32x4_t vi3x0123 = vld1q_f32(i3);
116 i3 += 4;
117
118 float32x4_t vacc0x0123 = vmulq_f32(vi0x0123, vw0123);
119 const uint32x4_t vm0x0123 = vcltq_s32(vreinterpretq_s32_f32(vi0x0123), vmovq_n_s32(0));
120 float32x4_t vacc1x0123 = vmulq_f32(vi1x0123, vw0123);
121 const uint32x4_t vm1x0123 = vcltq_s32(vreinterpretq_s32_f32(vi1x0123), vmovq_n_s32(0));
122 float32x4_t vacc2x0123 = vmulq_f32(vi2x0123, vw0123);
123 const uint32x4_t vm2x0123 = vcltq_s32(vreinterpretq_s32_f32(vi2x0123), vmovq_n_s32(0));
124 float32x4_t vacc3x0123 = vmulq_f32(vi3x0123, vw0123);
125 const uint32x4_t vm3x0123 = vcltq_s32(vreinterpretq_s32_f32(vi3x0123), vmovq_n_s32(0));
126
127 vacc0x0123 = vbslq_f32(vm0x0123, vacc0x0123, vi0x0123);
128 vacc1x0123 = vbslq_f32(vm1x0123, vacc1x0123, vi1x0123);
129 vacc2x0123 = vbslq_f32(vm2x0123, vacc2x0123, vi2x0123);
130 vacc3x0123 = vbslq_f32(vm3x0123, vacc3x0123, vi3x0123);
131
132 vst1q_f32(o0, vacc0x0123); o0 += 4;
133 vst1q_f32(o1, vacc1x0123); o1 += 4;
134 vst1q_f32(o2, vacc2x0123); o2 += 4;
135 vst1q_f32(o3, vacc3x0123); o3 += 4;
136 }
137 if XNN_UNLIKELY(c != 0) {
138 const float32x4_t vw0123 = vld1q_f32(w); w += 4;
139
140 const float32x4_t vi0x0123 = vld1q_f32(i0);
141 i0 = (const float*) ((uintptr_t) i0 + c);
142 const float32x4_t vi1x0123 = vld1q_f32(i1);
143 i1 = (const float*) ((uintptr_t) i1 + c);
144 const float32x4_t vi2x0123 = vld1q_f32(i2);
145 i2 = (const float*) ((uintptr_t) i2 + c);
146 const float32x4_t vi3x0123 = vld1q_f32(i3);
147 i3 = (const float*) ((uintptr_t) i3 + c);
148
149 float32x4_t vacc0x0123 = vmulq_f32(vi0x0123, vw0123);
150 const uint32x4_t vm0x0123 = vcltq_s32(vreinterpretq_s32_f32(vi0x0123), vmovq_n_s32(0));
151 float32x4_t vacc1x0123 = vmulq_f32(vi1x0123, vw0123);
152 const uint32x4_t vm1x0123 = vcltq_s32(vreinterpretq_s32_f32(vi1x0123), vmovq_n_s32(0));
153 float32x4_t vacc2x0123 = vmulq_f32(vi2x0123, vw0123);
154 const uint32x4_t vm2x0123 = vcltq_s32(vreinterpretq_s32_f32(vi2x0123), vmovq_n_s32(0));
155 float32x4_t vacc3x0123 = vmulq_f32(vi3x0123, vw0123);
156 const uint32x4_t vm3x0123 = vcltq_s32(vreinterpretq_s32_f32(vi3x0123), vmovq_n_s32(0));
157
158 vacc0x0123 = vbslq_f32(vm0x0123, vacc0x0123, vi0x0123);
159 vacc1x0123 = vbslq_f32(vm1x0123, vacc1x0123, vi1x0123);
160 vacc2x0123 = vbslq_f32(vm2x0123, vacc2x0123, vi2x0123);
161 vacc3x0123 = vbslq_f32(vm3x0123, vacc3x0123, vi3x0123);
162
163 float32x2_t vacc0x01 = vget_low_f32(vacc0x0123);
164 float32x2_t vacc1x01 = vget_low_f32(vacc1x0123);
165 float32x2_t vacc2x01 = vget_low_f32(vacc2x0123);
166 float32x2_t vacc3x01 = vget_low_f32(vacc3x0123);
167 if (c & (2 * sizeof(float))) {
168 vst1_f32(o0, vacc0x01); o0 += 2;
169 vst1_f32(o1, vacc1x01); o1 += 2;
170 vst1_f32(o2, vacc2x01); o2 += 2;
171 vst1_f32(o3, vacc3x01); o3 += 2;
172
173 vacc0x01 = vget_high_f32(vacc0x0123);
174 vacc1x01 = vget_high_f32(vacc1x0123);
175 vacc2x01 = vget_high_f32(vacc2x0123);
176 vacc3x01 = vget_high_f32(vacc3x0123);
177 }
178 if (c & (1 * sizeof(float))) {
179 vst1_lane_f32(o0, vacc0x01, 0); o0 += 1;
180 vst1_lane_f32(o1, vacc1x01, 0); o1 += 1;
181 vst1_lane_f32(o2, vacc2x01, 0); o2 += 1;
182 vst1_lane_f32(o3, vacc3x01, 0); o3 += 1;
183 }
184 }
185 i0 = (const float*) ((uintptr_t) i0 + input_increment);
186 o0 = (float*) ((uintptr_t) o0 + output_increment);
187 i1 = (const float*) ((uintptr_t) i1 + input_increment);
188 o1 = (float*) ((uintptr_t) o1 + output_increment);
189 if XNN_UNPREDICTABLE(rows < 6) {
190 i1 = i0;
191 o1 = o0;
192 }
193 i2 = (const float*) ((uintptr_t) i2 + input_increment);
194 o2 = (float*) ((uintptr_t) o2 + output_increment);
195 if XNN_UNPREDICTABLE(rows <= 6) {
196 i2 = i1;
197 o2 = o1;
198 }
199 i3 = (const float*) ((uintptr_t) i3 + input_increment);
200 o3 = (float*) ((uintptr_t) o3 + output_increment);
201 if XNN_UNPREDICTABLE(rows < 8) {
202 i3 = i2;
203 o3 = o2;
204 }
205 rows = doz(rows, 4);
206 } while (rows != 0);
207 }
208