1 // Auto-generated file. Do not edit!
2 // Template: src/f32-prelu/sse.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 <smmintrin.h>
13
14 #include <xnnpack/math.h>
15 #include <xnnpack/prelu.h>
16
17
xnn_f32_prelu_ukernel__sse41_2x4(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__sse41_2x4(
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
40 const size_t input_increment = input_stride * 2 - channels;
41 const size_t output_increment = output_stride * 2 - channels;
42
43 do {
44 const float* w = weights;
45 size_t c = channels;
46 for (; c >= 4 * sizeof(float); c -= 4 * sizeof(float)) {
47 const __m128 vw0123 = _mm_load_ps(w);
48 w += 4;
49
50 const __m128 vi0x0123 = _mm_loadu_ps(i0);
51 i0 += 4;
52 const __m128 vi1x0123 = _mm_loadu_ps(i1);
53 i1 += 4;
54
55 const __m128 vprod0x0123 = _mm_mul_ps(vi0x0123, vw0123);
56 const __m128 vprod1x0123 = _mm_mul_ps(vi1x0123, vw0123);
57
58 const __m128 vacc0x0123 = _mm_blendv_ps(vi0x0123, vprod0x0123, vi0x0123);
59 const __m128 vacc1x0123 = _mm_blendv_ps(vi1x0123, vprod1x0123, vi1x0123);
60
61 _mm_storeu_ps(o0, vacc0x0123);
62 o0 += 4;
63 _mm_storeu_ps(o1, vacc1x0123);
64 o1 += 4;
65 }
66 if XNN_UNLIKELY(c != 0) {
67 const __m128 vw0123 = _mm_load_ps(w);
68 w = (const float*) ((uintptr_t) w + c);
69
70 const __m128 vi0x0123 = _mm_loadu_ps(i0);
71 i0 = (const float*) ((uintptr_t) i0 + c);
72 const __m128 vi1x0123 = _mm_loadu_ps(i1);
73 i1 = (const float*) ((uintptr_t) i1 + c);
74
75 const __m128 vprod0x0123 = _mm_mul_ps(vi0x0123, vw0123);
76 const __m128 vprod1x0123 = _mm_mul_ps(vi1x0123, vw0123);
77
78 __m128 vacc0x0123 = _mm_blendv_ps(vi0x0123, vprod0x0123, vi0x0123);
79 __m128 vacc1x0123 = _mm_blendv_ps(vi1x0123, vprod1x0123, vi1x0123);
80
81 if (c & (2 * sizeof(float))) {
82 _mm_storel_pi((__m64*) o0, vacc0x0123);
83 _mm_storel_pi((__m64*) o1, vacc1x0123);
84
85 vacc0x0123 = _mm_movehl_ps(vacc0x0123, vacc0x0123);
86 vacc1x0123 = _mm_movehl_ps(vacc1x0123, vacc1x0123);
87
88 o0 += 2;
89 o1 += 2;
90 }
91 if (c & (1 * sizeof(float))) {
92 _mm_store_ss(o0, vacc0x0123);
93 _mm_store_ss(o1, vacc1x0123);
94
95 o0 += 1;
96 o1 += 1;
97 }
98 }
99 i0 = (const float*) ((uintptr_t) i0 + input_increment);
100 o0 = (float*) ((uintptr_t) o0 + output_increment);
101 i1 = (const float*) ((uintptr_t) i1 + input_increment);
102 o1 = (float*) ((uintptr_t) o1 + output_increment);
103 if XNN_UNPREDICTABLE(rows < 4) {
104 i1 = i0;
105 o1 = o0;
106 }
107 rows = doz(rows, 2);
108 } while (rows != 0);
109 }
110