1 // Auto-generated file. Do not edit!
2 // Template: src/f32-clamp/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/clamp.h>
15 #include <xnnpack/common.h>
16
17
xnn_f32_clamp_ukernel__wasmsimd_arm_x8(size_t n,const float * x,float * y,const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_clamp_ukernel__wasmsimd_arm_x8(
19 size_t n,
20 const float* x,
21 float* y,
22 const union xnn_f32_minmax_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 vy_min = wasm_v32x4_load_splat(¶ms->scalar.min);
30 const v128_t vy_max = wasm_v32x4_load_splat(¶ms->scalar.max);
31
32 for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
33 v128_t vacc0123 = wasm_v128_load(x);
34 v128_t vacc4567 = wasm_v128_load(x + 4);
35 x += 8;
36
37 vacc0123 = wasm_f32x4_max(vacc0123, vy_min);
38 vacc4567 = wasm_f32x4_max(vacc4567, vy_min);
39
40 vacc0123 = wasm_f32x4_min(vacc0123, vy_max);
41 vacc4567 = wasm_f32x4_min(vacc4567, vy_max);
42
43 wasm_v128_store(y, vacc0123);
44 wasm_v128_store(y + 4, vacc4567);
45 y += 8;
46 }
47 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
48 v128_t vacc = wasm_v128_load(x);
49 x += 4;
50
51 vacc = wasm_f32x4_max(vacc, vy_min);
52 vacc = wasm_f32x4_min(vacc, vy_max);
53
54 wasm_v128_store(y, vacc);
55 y += 4;
56 }
57 if XNN_UNLIKELY(n != 0) {
58 v128_t vacc = wasm_v128_load(x);
59
60 vacc = wasm_f32x4_max(vacc, vy_min);
61 vacc = wasm_f32x4_min(vacc, vy_max);
62
63 if (n & (2 * sizeof(float))) {
64 *((double*) y) = wasm_f64x2_extract_lane(vacc, 0);
65 vacc = wasm_v32x4_shuffle(vacc, vacc, 2, 3, 2, 3);
66 y += 2;
67 }
68 if (n & (1 * sizeof(float))) {
69 *y = wasm_f32x4_extract_lane(vacc, 0);
70 }
71 }
72 }
73