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1 // Auto-generated file. Do not edit!
2 //   Template: src/f32-gemm/avx-broadcast.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 <immintrin.h>
13 
14 #include <xnnpack/gemm.h>
15 
16 
xnn_f32_gemm_ukernel_4x8__avx_broadcast(size_t mr,size_t nc,size_t kc,const float * restrict a,size_t a_stride,const float * restrict w,float * restrict c,size_t cm_stride,size_t cn_stride,const union xnn_f32_output_params params[restrict static1])17 void xnn_f32_gemm_ukernel_4x8__avx_broadcast(
18     size_t mr,
19     size_t nc,
20     size_t kc,
21     const float*restrict a,
22     size_t a_stride,
23     const float*restrict w,
24     float*restrict c,
25     size_t cm_stride,
26     size_t cn_stride,
27     const union xnn_f32_output_params params[restrict static 1])
28 {
29   assert(mr != 0);
30   assert(mr <= 4);
31   assert(nc != 0);
32   assert(kc != 0);
33   assert(kc % sizeof(float) == 0);
34   assert(a != NULL);
35   assert(w != NULL);
36   assert(c != NULL);
37 
38   const float* a0 = a;
39   float* c0 = c;
40   const float* a1 = (const float*) ((uintptr_t) a0 + a_stride);
41   float* c1 = (float*) ((uintptr_t) c0 + cm_stride);
42   if XNN_UNPREDICTABLE(mr < 2) {
43     a1 = a0;
44     c1 = c0;
45   }
46   const float* a2 = (const float*) ((uintptr_t) a1 + a_stride);
47   float* c2 = (float*) ((uintptr_t) c1 + cm_stride);
48   if XNN_UNPREDICTABLE(mr <= 2) {
49     a2 = a1;
50     c2 = c1;
51   }
52   const float* a3 = (const float*) ((uintptr_t) a2 + a_stride);
53   float* c3 = (float*) ((uintptr_t) c2 + cm_stride);
54   if XNN_UNPREDICTABLE(mr != 4) {
55     a3 = a2;
56     c3 = c2;
57   }
58 
59   do {
60     __m256 vacc0x01234567 = _mm256_load_ps(w + 0);
61     __m256 vacc1x01234567 = vacc0x01234567;
62     __m256 vacc2x01234567 = vacc0x01234567;
63     __m256 vacc3x01234567 = vacc0x01234567;
64     w += 8;
65 
66     size_t k = kc;
67     do {
68       const __m256 va0 = _mm256_broadcast_ss(a0);
69       a0 += 1;
70       const __m256 va1 = _mm256_broadcast_ss(a1);
71       a1 += 1;
72       const __m256 va2 = _mm256_broadcast_ss(a2);
73       a2 += 1;
74       const __m256 va3 = _mm256_broadcast_ss(a3);
75       a3 += 1;
76 
77       const __m256 vb01234567 = _mm256_load_ps(w);
78       w += 8;
79 
80       vacc0x01234567 = _mm256_add_ps(vacc0x01234567, _mm256_mul_ps(va0, vb01234567));
81       vacc1x01234567 = _mm256_add_ps(vacc1x01234567, _mm256_mul_ps(va1, vb01234567));
82       vacc2x01234567 = _mm256_add_ps(vacc2x01234567, _mm256_mul_ps(va2, vb01234567));
83       vacc3x01234567 = _mm256_add_ps(vacc3x01234567, _mm256_mul_ps(va3, vb01234567));
84 
85       k -= sizeof(float);
86     } while (k != 0);
87 
88     const __m256 vmax = _mm256_broadcast_ps((const __m128*) params->sse.max);
89     vacc0x01234567 = _mm256_min_ps(vacc0x01234567, vmax);
90     vacc1x01234567 = _mm256_min_ps(vacc1x01234567, vmax);
91     vacc2x01234567 = _mm256_min_ps(vacc2x01234567, vmax);
92     vacc3x01234567 = _mm256_min_ps(vacc3x01234567, vmax);
93 
94     const __m256 vmin = _mm256_broadcast_ps((const __m128*) params->sse.min);
95     vacc0x01234567 = _mm256_max_ps(vacc0x01234567, vmin);
96     vacc1x01234567 = _mm256_max_ps(vacc1x01234567, vmin);
97     vacc2x01234567 = _mm256_max_ps(vacc2x01234567, vmin);
98     vacc3x01234567 = _mm256_max_ps(vacc3x01234567, vmin);
99 
100     if XNN_LIKELY(nc >= 8) {
101       _mm256_storeu_ps(c3, vacc3x01234567);
102       c3 = (float*) ((uintptr_t) c3 + cn_stride);
103       _mm256_storeu_ps(c2, vacc2x01234567);
104       c2 = (float*) ((uintptr_t) c2 + cn_stride);
105       _mm256_storeu_ps(c1, vacc1x01234567);
106       c1 = (float*) ((uintptr_t) c1 + cn_stride);
107       _mm256_storeu_ps(c0, vacc0x01234567);
108       c0 = (float*) ((uintptr_t) c0 + cn_stride);
109 
110       a3 = (const float*) ((uintptr_t) a3 - kc);
111       a2 = (const float*) ((uintptr_t) a2 - kc);
112       a1 = (const float*) ((uintptr_t) a1 - kc);
113       a0 = (const float*) ((uintptr_t) a0 - kc);
114 
115       nc -= 8;
116     } else {
117       __m128 vacc3x0123 = _mm256_castps256_ps128(vacc3x01234567);
118       __m128 vacc2x0123 = _mm256_castps256_ps128(vacc2x01234567);
119       __m128 vacc1x0123 = _mm256_castps256_ps128(vacc1x01234567);
120       __m128 vacc0x0123 = _mm256_castps256_ps128(vacc0x01234567);
121       if (nc & 4) {
122         _mm_storeu_ps(c3, vacc3x0123);
123         _mm_storeu_ps(c2, vacc2x0123);
124         _mm_storeu_ps(c1, vacc1x0123);
125         _mm_storeu_ps(c0, vacc0x0123);
126 
127         vacc3x0123 = _mm256_extractf128_ps(vacc3x01234567, 1);
128         vacc2x0123 = _mm256_extractf128_ps(vacc2x01234567, 1);
129         vacc1x0123 = _mm256_extractf128_ps(vacc1x01234567, 1);
130         vacc0x0123 = _mm256_extractf128_ps(vacc0x01234567, 1);
131 
132         c3 += 4;
133         c2 += 4;
134         c1 += 4;
135         c0 += 4;
136       }
137       if (nc & 2) {
138         _mm_storel_pi((__m64*) c3, vacc3x0123);
139         _mm_storel_pi((__m64*) c2, vacc2x0123);
140         _mm_storel_pi((__m64*) c1, vacc1x0123);
141         _mm_storel_pi((__m64*) c0, vacc0x0123);
142 
143         vacc3x0123 = _mm_movehl_ps(vacc3x0123, vacc3x0123);
144         vacc2x0123 = _mm_movehl_ps(vacc2x0123, vacc2x0123);
145         vacc1x0123 = _mm_movehl_ps(vacc1x0123, vacc1x0123);
146         vacc0x0123 = _mm_movehl_ps(vacc0x0123, vacc0x0123);
147 
148         c3 += 2;
149         c2 += 2;
150         c1 += 2;
151         c0 += 2;
152       }
153       if (nc & 1) {
154         _mm_store_ss(c3, vacc3x0123);
155         _mm_store_ss(c2, vacc2x0123);
156         _mm_store_ss(c1, vacc1x0123);
157         _mm_store_ss(c0, vacc0x0123);
158       }
159 
160       nc = 0;
161     }
162   } while (nc != 0);
163 }
164