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1 // Auto-generated file. Do not edit!
2 //   Template: src/f32-clamp/sse.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 <xmmintrin.h>
13 
14 #include <xnnpack/clamp.h>
15 #include <xnnpack/common.h>
16 
17 
xnn_f32_clamp_ukernel__sse_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__sse_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 __m128 vy_min = _mm_load_ps(params->sse.min);
30   const __m128 vy_max = _mm_load_ps(params->sse.max);
31 
32   for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
33     __m128 vacc0123 = _mm_loadu_ps(x);
34     __m128 vacc4567 = _mm_loadu_ps(x + 4);
35     x += 8;
36 
37     vacc0123 = _mm_max_ps(vacc0123, vy_min);
38     vacc4567 = _mm_max_ps(vacc4567, vy_min);
39 
40     vacc0123 = _mm_min_ps(vacc0123, vy_max);
41     vacc4567 = _mm_min_ps(vacc4567, vy_max);
42 
43     _mm_storeu_ps(y, vacc0123);
44     _mm_storeu_ps(y + 4, vacc4567);
45     y += 8;
46   }
47   for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
48     __m128 vacc = _mm_loadu_ps(x);
49     x += 4;
50 
51     vacc = _mm_max_ps(vacc, vy_min);
52     vacc = _mm_min_ps(vacc, vy_max);
53 
54     _mm_storeu_ps(y, vacc);
55     y += 4;
56   }
57   if XNN_UNLIKELY(n != 0) {
58     __m128 vacc = _mm_loadu_ps(x);
59     vacc = _mm_max_ps(vacc, vy_min);
60     vacc = _mm_min_ps(vacc, vy_max);
61 
62     if (n & (2 * sizeof(float))) {
63       _mm_storel_pi((__m64*) y, vacc);
64       vacc = _mm_movehl_ps(vacc, vacc);
65       y += 2;
66     }
67     if (n & (1 * sizeof(float))) {
68       _mm_store_ss(y, vacc);
69     }
70   }
71 }
72