1 // Auto-generated file. Do not edit!
2 //   Template: src/f32-velu/avx2-rr1-p6.c.in
3 //   Generator: tools/xngen
4 //
5 // Copyright 2020 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/common.h>
15 #include <xnnpack/vunary.h>
16 
17 
18 static const int32_t mask_table[14] = {-1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0};
19 
xnn_f32_velu_ukernel__avx2_rr1_p6_x56(size_t n,const float * x,float * y,const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS (1)])20 void xnn_f32_velu_ukernel__avx2_rr1_p6_x56(
21     size_t n,
22     const float* x,
23     float* y,
24     const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)])
25 {
26   assert(n % sizeof(float) == 0);
27 
28   const __m256 vprescale = _mm256_broadcast_ps((const __m128*) params->sse.prescale);
29   const __m256 valpha = _mm256_broadcast_ps((const __m128*) params->sse.alpha);
30   const __m256 vbeta = _mm256_broadcast_ps((const __m128*) params->sse.beta);
31 
32   const __m256 vsat_cutoff = _mm256_set1_ps(-0x1.154246p+4f);
33   const __m256 vmagic_bias = _mm256_set1_ps(0x1.8000FEp23f);
34   const __m256 vlog2e = _mm256_set1_ps(0x1.715476p+0f);
35   const __m256 vminus_ln2 = _mm256_set1_ps(-0x1.62E43p-1f);
36   const __m256 vc6 = _mm256_set1_ps(0x1.6b7338p-10f);
37   const __m256 vc5 = _mm256_set1_ps(0x1.12278Ep-7f);
38   const __m256 vc4 = _mm256_set1_ps(0x1.555716p-5f);
39   const __m256 vc3 = _mm256_set1_ps(0x1.5554B0p-3f);
40   const __m256 vc2 = _mm256_set1_ps(0x1.FFFFFEp-2f);
41 
42   for (; n >= 56 * sizeof(float); n -= 56 * sizeof(float)) {
43     __m256 vx0 = _mm256_loadu_ps(x);
44     __m256 vx1 = _mm256_loadu_ps(x + 8);
45     __m256 vx2 = _mm256_loadu_ps(x + 16);
46     __m256 vx3 = _mm256_loadu_ps(x + 24);
47     __m256 vx4 = _mm256_loadu_ps(x + 32);
48     __m256 vx5 = _mm256_loadu_ps(x + 40);
49     __m256 vx6 = _mm256_loadu_ps(x + 48);
50     x += 56;
51 
52     const __m256 vz0 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx0, vprescale));
53     const __m256 vz1 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx1, vprescale));
54     const __m256 vz2 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx2, vprescale));
55     const __m256 vz3 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx3, vprescale));
56     const __m256 vz4 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx4, vprescale));
57     const __m256 vz5 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx5, vprescale));
58     const __m256 vz6 = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx6, vprescale));
59 
60     __m256 vn0 = _mm256_fmadd_ps(vz0, vlog2e, vmagic_bias);
61     __m256 vn1 = _mm256_fmadd_ps(vz1, vlog2e, vmagic_bias);
62     __m256 vn2 = _mm256_fmadd_ps(vz2, vlog2e, vmagic_bias);
63     __m256 vn3 = _mm256_fmadd_ps(vz3, vlog2e, vmagic_bias);
64     __m256 vn4 = _mm256_fmadd_ps(vz4, vlog2e, vmagic_bias);
65     __m256 vn5 = _mm256_fmadd_ps(vz5, vlog2e, vmagic_bias);
66     __m256 vn6 = _mm256_fmadd_ps(vz6, vlog2e, vmagic_bias);
67 
68     __m256 vs0 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn0), 23));
69     vn0 = _mm256_sub_ps(vn0, vmagic_bias);
70     __m256 vs1 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn1), 23));
71     vn1 = _mm256_sub_ps(vn1, vmagic_bias);
72     __m256 vs2 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn2), 23));
73     vn2 = _mm256_sub_ps(vn2, vmagic_bias);
74     __m256 vs3 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn3), 23));
75     vn3 = _mm256_sub_ps(vn3, vmagic_bias);
76     __m256 vs4 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn4), 23));
77     vn4 = _mm256_sub_ps(vn4, vmagic_bias);
78     __m256 vs5 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn5), 23));
79     vn5 = _mm256_sub_ps(vn5, vmagic_bias);
80     __m256 vs6 = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn6), 23));
81     vn6 = _mm256_sub_ps(vn6, vmagic_bias);
82 
83     __m256 vt0 = _mm256_fmadd_ps(vn0, vminus_ln2, vz0);
84     __m256 vt1 = _mm256_fmadd_ps(vn1, vminus_ln2, vz1);
85     __m256 vt2 = _mm256_fmadd_ps(vn2, vminus_ln2, vz2);
86     __m256 vt3 = _mm256_fmadd_ps(vn3, vminus_ln2, vz3);
87     __m256 vt4 = _mm256_fmadd_ps(vn4, vminus_ln2, vz4);
88     __m256 vt5 = _mm256_fmadd_ps(vn5, vminus_ln2, vz5);
89     __m256 vt6 = _mm256_fmadd_ps(vn6, vminus_ln2, vz6);
90 
91     __m256 vp0 = _mm256_fmadd_ps(vc6, vt0, vc5);
92     __m256 vp1 = _mm256_fmadd_ps(vc6, vt1, vc5);
93     __m256 vp2 = _mm256_fmadd_ps(vc6, vt2, vc5);
94     __m256 vp3 = _mm256_fmadd_ps(vc6, vt3, vc5);
95     __m256 vp4 = _mm256_fmadd_ps(vc6, vt4, vc5);
96     __m256 vp5 = _mm256_fmadd_ps(vc6, vt5, vc5);
97     __m256 vp6 = _mm256_fmadd_ps(vc6, vt6, vc5);
98 
99     vp0 = _mm256_fmadd_ps(vp0, vt0, vc4);
100     vp1 = _mm256_fmadd_ps(vp1, vt1, vc4);
101     vp2 = _mm256_fmadd_ps(vp2, vt2, vc4);
102     vp3 = _mm256_fmadd_ps(vp3, vt3, vc4);
103     vp4 = _mm256_fmadd_ps(vp4, vt4, vc4);
104     vp5 = _mm256_fmadd_ps(vp5, vt5, vc4);
105     vp6 = _mm256_fmadd_ps(vp6, vt6, vc4);
106 
107     vp0 = _mm256_fmadd_ps(vp0, vt0, vc3);
108     vp1 = _mm256_fmadd_ps(vp1, vt1, vc3);
109     vp2 = _mm256_fmadd_ps(vp2, vt2, vc3);
110     vp3 = _mm256_fmadd_ps(vp3, vt3, vc3);
111     vp4 = _mm256_fmadd_ps(vp4, vt4, vc3);
112     vp5 = _mm256_fmadd_ps(vp5, vt5, vc3);
113     vp6 = _mm256_fmadd_ps(vp6, vt6, vc3);
114 
115     vp0 = _mm256_fmadd_ps(vp0, vt0, vc2);
116     vp1 = _mm256_fmadd_ps(vp1, vt1, vc2);
117     vp2 = _mm256_fmadd_ps(vp2, vt2, vc2);
118     vp3 = _mm256_fmadd_ps(vp3, vt3, vc2);
119     vp4 = _mm256_fmadd_ps(vp4, vt4, vc2);
120     vp5 = _mm256_fmadd_ps(vp5, vt5, vc2);
121     vp6 = _mm256_fmadd_ps(vp6, vt6, vc2);
122 
123     vp0 = _mm256_mul_ps(vp0, vt0);
124     vt0 = _mm256_mul_ps(vt0, vs0);
125     vp1 = _mm256_mul_ps(vp1, vt1);
126     vt1 = _mm256_mul_ps(vt1, vs1);
127     vp2 = _mm256_mul_ps(vp2, vt2);
128     vt2 = _mm256_mul_ps(vt2, vs2);
129     vp3 = _mm256_mul_ps(vp3, vt3);
130     vt3 = _mm256_mul_ps(vt3, vs3);
131     vp4 = _mm256_mul_ps(vp4, vt4);
132     vt4 = _mm256_mul_ps(vt4, vs4);
133     vp5 = _mm256_mul_ps(vp5, vt5);
134     vt5 = _mm256_mul_ps(vt5, vs5);
135     vp6 = _mm256_mul_ps(vp6, vt6);
136     vt6 = _mm256_mul_ps(vt6, vs6);
137 
138     vs0 = _mm256_fmsub_ps(vs0, valpha, valpha);
139     vp0 = _mm256_fmadd_ps(vp0, vt0, vt0);
140     vs1 = _mm256_fmsub_ps(vs1, valpha, valpha);
141     vp1 = _mm256_fmadd_ps(vp1, vt1, vt1);
142     vs2 = _mm256_fmsub_ps(vs2, valpha, valpha);
143     vp2 = _mm256_fmadd_ps(vp2, vt2, vt2);
144     vs3 = _mm256_fmsub_ps(vs3, valpha, valpha);
145     vp3 = _mm256_fmadd_ps(vp3, vt3, vt3);
146     vs4 = _mm256_fmsub_ps(vs4, valpha, valpha);
147     vp4 = _mm256_fmadd_ps(vp4, vt4, vt4);
148     vs5 = _mm256_fmsub_ps(vs5, valpha, valpha);
149     vp5 = _mm256_fmadd_ps(vp5, vt5, vt5);
150     vs6 = _mm256_fmsub_ps(vs6, valpha, valpha);
151     vp6 = _mm256_fmadd_ps(vp6, vt6, vt6);
152 
153     const __m256 ve0 = _mm256_fmadd_ps(vp0, valpha, vs0);
154     vx0 = _mm256_mul_ps(vx0, vbeta);
155     const __m256 ve1 = _mm256_fmadd_ps(vp1, valpha, vs1);
156     vx1 = _mm256_mul_ps(vx1, vbeta);
157     const __m256 ve2 = _mm256_fmadd_ps(vp2, valpha, vs2);
158     vx2 = _mm256_mul_ps(vx2, vbeta);
159     const __m256 ve3 = _mm256_fmadd_ps(vp3, valpha, vs3);
160     vx3 = _mm256_mul_ps(vx3, vbeta);
161     const __m256 ve4 = _mm256_fmadd_ps(vp4, valpha, vs4);
162     vx4 = _mm256_mul_ps(vx4, vbeta);
163     const __m256 ve5 = _mm256_fmadd_ps(vp5, valpha, vs5);
164     vx5 = _mm256_mul_ps(vx5, vbeta);
165     const __m256 ve6 = _mm256_fmadd_ps(vp6, valpha, vs6);
166     vx6 = _mm256_mul_ps(vx6, vbeta);
167 
168     const __m256 vy0 = _mm256_blendv_ps(vx0, ve0, vx0);
169     const __m256 vy1 = _mm256_blendv_ps(vx1, ve1, vx1);
170     const __m256 vy2 = _mm256_blendv_ps(vx2, ve2, vx2);
171     const __m256 vy3 = _mm256_blendv_ps(vx3, ve3, vx3);
172     const __m256 vy4 = _mm256_blendv_ps(vx4, ve4, vx4);
173     const __m256 vy5 = _mm256_blendv_ps(vx5, ve5, vx5);
174     const __m256 vy6 = _mm256_blendv_ps(vx6, ve6, vx6);
175 
176     _mm256_storeu_ps(y, vy0);
177     _mm256_storeu_ps(y + 8, vy1);
178     _mm256_storeu_ps(y + 16, vy2);
179     _mm256_storeu_ps(y + 24, vy3);
180     _mm256_storeu_ps(y + 32, vy4);
181     _mm256_storeu_ps(y + 40, vy5);
182     _mm256_storeu_ps(y + 48, vy6);
183     y += 56;
184   }
185   for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
186     __m256 vx = _mm256_loadu_ps(x);
187     x += 8;
188 
189     const __m256 vz = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx, vprescale));
190 
191     __m256 vn = _mm256_fmadd_ps(vz, vlog2e, vmagic_bias);
192     __m256 vs = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn), 23));
193     vn = _mm256_sub_ps(vn, vmagic_bias);
194 
195     __m256 vt = _mm256_fmadd_ps(vn, vminus_ln2, vz);
196 
197     __m256 vp = _mm256_fmadd_ps(vc6, vt, vc5);
198     vp = _mm256_fmadd_ps(vp, vt, vc4);
199     vp = _mm256_fmadd_ps(vp, vt, vc3);
200     vp = _mm256_fmadd_ps(vp, vt, vc2);
201     vp = _mm256_mul_ps(vp, vt);
202 
203     vt = _mm256_mul_ps(vt, vs);
204     vs = _mm256_fmsub_ps(vs, valpha, valpha);
205     vp = _mm256_fmadd_ps(vp, vt, vt);
206     const __m256 ve = _mm256_fmadd_ps(vp, valpha, vs);
207 
208     vx = _mm256_mul_ps(vx, vbeta);
209     const __m256 vy = _mm256_blendv_ps(vx, ve, vx);
210 
211     _mm256_storeu_ps(y, vy);
212     y += 8;
213   }
214   if XNN_UNLIKELY(n != 0) {
215     assert(n >= 1 * sizeof(float));
216     assert(n <= 7 * sizeof(float));
217     __m256i vmask = _mm256_loadu_si256((const __m256i*) ((uintptr_t) &mask_table[7] - n));
218 
219     __m256 vx = _mm256_maskload_ps(x, vmask);
220 
221     const __m256 vz = _mm256_max_ps(vsat_cutoff, _mm256_mul_ps(vx, vprescale));
222 
223     __m256 vn = _mm256_fmadd_ps(vz, vlog2e, vmagic_bias);
224     __m256 vs = _mm256_castsi256_ps(_mm256_slli_epi32(_mm256_castps_si256(vn), 23));
225     vn = _mm256_sub_ps(vn, vmagic_bias);
226 
227     __m256 vt = _mm256_fmadd_ps(vn, vminus_ln2, vz);
228 
229     __m256 vp = _mm256_fmadd_ps(vc6, vt, vc5);
230     vp = _mm256_fmadd_ps(vp, vt, vc4);
231     vp = _mm256_fmadd_ps(vp, vt, vc3);
232     vp = _mm256_fmadd_ps(vp, vt, vc2);
233     vp = _mm256_mul_ps(vp, vt);
234 
235     vt = _mm256_mul_ps(vt, vs);
236     vs = _mm256_fmsub_ps(vs, valpha, valpha);
237     vp = _mm256_fmadd_ps(vp, vt, vt);
238     const __m256 ve = _mm256_fmadd_ps(vp, valpha, vs);
239 
240     vx = _mm256_mul_ps(vx, vbeta);
241     const __m256 vy = _mm256_blendv_ps(vx, ve, vx);
242 
243     // _mm256_maskstore_ps(y, vmask, vf) could be used here, but triggers msan failures (probably an msan bug).
244     __m128 vy_lo = _mm256_castps256_ps128(vy);
245     if (n & (4 * sizeof(float))) {
246       _mm_storeu_ps(y, vy_lo);
247       vy_lo = _mm256_extractf128_ps(vy, 1);
248       y += 4;
249     }
250     if (n & (2 * sizeof(float))) {
251       _mm_storel_pi((__m64*) y, vy_lo);
252       vy_lo = _mm_movehl_ps(vy_lo, vy_lo);
253       y += 2;
254     }
255     if (n & (1 * sizeof(float))) {
256       _mm_store_ss(y, vy_lo);
257     }
258   }
259 }
260