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1 // Auto-generated file. Do not edit!
2 //   Template: src/f32-velu/wasmsimd-rr2-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 <wasm_simd128.h>
13 
14 #include <xnnpack/vunary.h>
15 #include <xnnpack/common.h>
16 
17 
xnn_f32_velu_ukernel__wasmsimd_arm_rr2_p6_x12(size_t n,const float * x,float * y,const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_velu_ukernel__wasmsimd_arm_rr2_p6_x12(
19     size_t n,
20     const float* x,
21     float* y,
22     const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
23 {
24   assert(n != 0);
25   assert(n % sizeof(float) == 0);
26   assert(x != NULL);
27   assert(y != NULL);
28 
29   const v128_t vprescale = wasm_v32x4_load_splat(&params->scalar.prescale);
30   const v128_t valpha = wasm_v32x4_load_splat(&params->scalar.alpha);
31   const v128_t vbeta = wasm_v32x4_load_splat(&params->scalar.beta);
32 
33   const v128_t vsat_cutoff = wasm_f32x4_splat(-0x1.154246p+4f);
34   const v128_t vmagic_bias = wasm_f32x4_splat(0x1.8000FEp23f);
35   const v128_t vlog2e = wasm_f32x4_splat(0x1.715476p+0f);
36   const v128_t vminus_ln2_hi = wasm_f32x4_splat(-0x1.62E440p-1f);
37   const v128_t vminus_ln2_lo = wasm_f32x4_splat(0x1.0105C6p-21f);
38   const v128_t vc6 = wasm_f32x4_splat(0x1.6b7338p-10f);
39   const v128_t vc5 = wasm_f32x4_splat(0x1.12278Ep-7f);
40   const v128_t vc4 = wasm_f32x4_splat(0x1.555716p-5f);
41   const v128_t vc3 = wasm_f32x4_splat(0x1.5554B0p-3f);
42   const v128_t vc2 = wasm_f32x4_splat(0x1.FFFFFEp-2f);
43   const v128_t vone = wasm_f32x4_splat(1.0f);
44 
45   for (; n >= 12 * sizeof(float); n -= 12 * sizeof(float)) {
46     v128_t vx0123 = wasm_v128_load(x);
47     v128_t vx4567 = wasm_v128_load(x + 4);
48     v128_t vx89AB = wasm_v128_load(x + 8);
49     x += 12;
50 
51     const v128_t vz0123 = wasm_f32x4_max(wasm_f32x4_mul(vx0123, vprescale), vsat_cutoff);
52     const v128_t vz4567 = wasm_f32x4_max(wasm_f32x4_mul(vx4567, vprescale), vsat_cutoff);
53     const v128_t vz89AB = wasm_f32x4_max(wasm_f32x4_mul(vx89AB, vprescale), vsat_cutoff);
54 
55     v128_t vn0123 = wasm_f32x4_add(wasm_f32x4_mul(vz0123, vlog2e), vmagic_bias);
56     v128_t vn4567 = wasm_f32x4_add(wasm_f32x4_mul(vz4567, vlog2e), vmagic_bias);
57     v128_t vn89AB = wasm_f32x4_add(wasm_f32x4_mul(vz89AB, vlog2e), vmagic_bias);
58 
59     v128_t vs0123 = wasm_i32x4_shl(vn0123, 23);
60     v128_t vs4567 = wasm_i32x4_shl(vn4567, 23);
61     v128_t vs89AB = wasm_i32x4_shl(vn89AB, 23);
62 
63     vn0123 = wasm_f32x4_sub(vn0123, vmagic_bias);
64     vn4567 = wasm_f32x4_sub(vn4567, vmagic_bias);
65     vn89AB = wasm_f32x4_sub(vn89AB, vmagic_bias);
66 
67     v128_t vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_hi), vz0123);
68     v128_t vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_hi), vz4567);
69     v128_t vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_hi), vz89AB);
70 
71     vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_lo), vt0123);
72     vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_lo), vt4567);
73     vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_lo), vt89AB);
74 
75     v128_t vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vc6, vt0123), vc5);
76     v128_t vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vc6, vt4567), vc5);
77     v128_t vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vc6, vt89AB), vc5);
78 
79     vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vc4);
80     vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vc4);
81     vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vc4);
82 
83     vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vc3);
84     vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vc3);
85     vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vc3);
86 
87     vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vc2);
88     vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vc2);
89     vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vc2);
90 
91     vp0123 = wasm_f32x4_mul(vp0123, vt0123);
92     vp4567 = wasm_f32x4_mul(vp4567, vt4567);
93     vp89AB = wasm_f32x4_mul(vp89AB, vt89AB);
94 
95     vt0123 = wasm_f32x4_mul(vt0123, vs0123);
96     vs0123 = wasm_f32x4_sub(vs0123, vone);
97     vt4567 = wasm_f32x4_mul(vt4567, vs4567);
98     vs4567 = wasm_f32x4_sub(vs4567, vone);
99     vt89AB = wasm_f32x4_mul(vt89AB, vs89AB);
100     vs89AB = wasm_f32x4_sub(vs89AB, vone);
101 
102     vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vt0123);
103     vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vt4567);
104     vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vt89AB);
105 
106     const v128_t ve0123 = wasm_f32x4_mul(wasm_f32x4_add(vp0123, vs0123), valpha);
107     const v128_t ve4567 = wasm_f32x4_mul(wasm_f32x4_add(vp4567, vs4567), valpha);
108     const v128_t ve89AB = wasm_f32x4_mul(wasm_f32x4_add(vp89AB, vs89AB), valpha);
109 
110     const v128_t vsignm0123 = wasm_i32x4_shr(vx0123, 31);
111     vx0123 = wasm_f32x4_mul(vx0123, vbeta);
112     const v128_t vsignm4567 = wasm_i32x4_shr(vx4567, 31);
113     vx4567 = wasm_f32x4_mul(vx4567, vbeta);
114     const v128_t vsignm89AB = wasm_i32x4_shr(vx89AB, 31);
115     vx89AB = wasm_f32x4_mul(vx89AB, vbeta);
116 
117     const v128_t vy0123 = wasm_v128_bitselect(ve0123, vx0123, vsignm0123);
118     const v128_t vy4567 = wasm_v128_bitselect(ve4567, vx4567, vsignm4567);
119     const v128_t vy89AB = wasm_v128_bitselect(ve89AB, vx89AB, vsignm89AB);
120 
121     wasm_v128_store(y, vy0123);
122     wasm_v128_store(y + 4, vy4567);
123     wasm_v128_store(y + 8, vy89AB);
124     y += 12;
125   }
126   for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
127     v128_t vx = wasm_v128_load(x);
128     x += 4;
129 
130     const v128_t vz = wasm_f32x4_max(wasm_f32x4_mul(vx, vprescale), vsat_cutoff);
131 
132     v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
133     v128_t vs = wasm_i32x4_shl(vn, 23);
134     vn = wasm_f32x4_sub(vn, vmagic_bias);
135 
136     v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
137     vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
138 
139     v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc6, vt), vc5);
140     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc4);
141     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc3);
142     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc2);
143     vp = wasm_f32x4_mul(vp, vt);
144 
145     vt = wasm_f32x4_mul(vt, vs);
146     vs = wasm_f32x4_sub(vs, vone);
147     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
148     const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
149 
150     const v128_t vsignm = wasm_i32x4_shr(vx, 31);
151     vx = wasm_f32x4_mul(vx, vbeta);
152     const v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
153 
154     wasm_v128_store(y, vy);
155     y += 4;
156   }
157   if XNN_UNLIKELY(n != 0) {
158     v128_t vx = wasm_v128_load(x);
159 
160     const v128_t vz = wasm_f32x4_max(wasm_f32x4_mul(vx, vprescale), vsat_cutoff);
161 
162     v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
163     v128_t vs = wasm_i32x4_shl(vn, 23);
164     vn = wasm_f32x4_sub(vn, vmagic_bias);
165 
166     v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
167     vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
168 
169     v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc6, vt), vc5);
170     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc4);
171     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc3);
172     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vc2);
173     vp = wasm_f32x4_mul(vp, vt);
174 
175     vt = wasm_f32x4_mul(vt, vs);
176     vs = wasm_f32x4_sub(vs, vone);
177     vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
178     const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
179 
180     const v128_t vsignm = wasm_i32x4_shr(vx, 31);
181     vx = wasm_f32x4_mul(vx, vbeta);
182     v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
183 
184     if (n & (2 * sizeof(float))) {
185       *((double*) y) = wasm_f64x2_extract_lane(vy, 0);
186       vy = wasm_v32x4_shuffle(vy, vy, 2, 3, 2, 3);
187       y += 2;
188     }
189     if (n & (1 * sizeof(float))) {
190       *y = wasm_f32x4_extract_lane(vy, 0);
191     }
192   }
193 }
194