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1 // Auto-generated file. Do not edit!
2 //   Template: src/f32-vbinary/vop-wasmsimd.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/common.h>
15 #include <xnnpack/vbinary.h>
16 
17 
xnn_f32_vsqrdiff_ukernel__wasmsimd_x16(size_t n,const float * a,const float * b,float * y,const union xnn_f32_default_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_vsqrdiff_ukernel__wasmsimd_x16(
19     size_t n,
20     const float* a,
21     const float* b,
22     float* y,
23     const union xnn_f32_default_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
24 {
25   assert(n != 0);
26   assert(n % sizeof(float) == 0);
27   assert(a != NULL);
28   assert(b != NULL);
29   assert(y != NULL);
30 
31 
32   for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
33     const v128_t va0123 = wasm_v128_load(a);
34     const v128_t va4567 = wasm_v128_load(a + 4);
35     const v128_t va89AB = wasm_v128_load(a + 8);
36     const v128_t vaCDEF = wasm_v128_load(a + 12);
37     a += 16;
38 
39     const v128_t vb0123 = wasm_v128_load(b);
40     const v128_t vb4567 = wasm_v128_load(b + 4);
41     const v128_t vb89AB = wasm_v128_load(b + 8);
42     const v128_t vbCDEF = wasm_v128_load(b + 12);
43     b += 16;
44 
45     v128_t vy0123 = wasm_f32x4_sub(va0123, vb0123);
46     v128_t vy4567 = wasm_f32x4_sub(va4567, vb4567);
47     v128_t vy89AB = wasm_f32x4_sub(va89AB, vb89AB);
48     v128_t vyCDEF = wasm_f32x4_sub(vaCDEF, vbCDEF);
49 
50     vy0123 = wasm_f32x4_mul(vy0123, vy0123);
51     vy4567 = wasm_f32x4_mul(vy4567, vy4567);
52     vy89AB = wasm_f32x4_mul(vy89AB, vy89AB);
53     vyCDEF = wasm_f32x4_mul(vyCDEF, vyCDEF);
54 
55 
56     wasm_v128_store(y, vy0123);
57     wasm_v128_store(y + 4, vy4567);
58     wasm_v128_store(y + 8, vy89AB);
59     wasm_v128_store(y + 12, vyCDEF);
60     y += 16;
61   }
62   for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
63     const v128_t va = wasm_v128_load(a);
64     a += 4;
65 
66     const v128_t vb = wasm_v128_load(b);
67     b += 4;
68 
69     v128_t vy = wasm_f32x4_sub(va, vb);
70     vy = wasm_f32x4_mul(vy, vy);
71 
72 
73     wasm_v128_store(y, vy);
74     y += 4;
75   }
76   if XNN_UNLIKELY(n != 0) {
77     const v128_t va = wasm_v128_load(a);
78     const v128_t vb = wasm_v128_load(b);
79 
80     v128_t vy = wasm_f32x4_sub(va, vb);
81     vy = wasm_f32x4_mul(vy, vy);
82 
83 
84     if (n & (2 * sizeof(float))) {
85       *((double*) y) = wasm_f64x2_extract_lane(vy, 0);
86       vy = wasm_v32x4_shuffle(vy, vy, 2, 3, 2, 3);
87       y += 2;
88     }
89     if (n & (1 * sizeof(float))) {
90       *y = wasm_f32x4_extract_lane(vy, 0);
91     }
92   }
93 }
94