1 // Auto-generated file. Do not edit!
2 // Template: src/f32-qs8-vcvt/sse.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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 <emmintrin.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/unaligned.h>
16 #include <xnnpack/vcvt.h>
17
18
xnn_f32_qu8_vcvt_ukernel__sse2_x24(size_t n,const float * x,uint8_t * y,const union xnn_f32_qu8_cvt_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_qu8_vcvt_ukernel__sse2_x24(
20 size_t n,
21 const float* x,
22 uint8_t* y,
23 const union xnn_f32_qu8_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
24 {
25 assert(n != 0);
26 assert(n % sizeof(float) == 0);
27 assert(x != NULL);
28 assert(y != NULL);
29
30 const __m128 vscale = _mm_load_ps(params->sse2.scale);
31 const __m128 voutput_max_less_zero_point = _mm_load_ps(params->sse2.output_max_less_zero_point);
32 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
33 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
34
35 for (; n >= 24 * sizeof(float); n -= 24 * sizeof(float)) {
36 __m128 vx0123 = _mm_loadu_ps(x);
37 __m128 vx4567 = _mm_loadu_ps(x + 4);
38 __m128 vx89AB = _mm_loadu_ps(x + 8);
39 __m128 vxCDEF = _mm_loadu_ps(x + 12);
40 __m128 vxGHIJ = _mm_loadu_ps(x + 16);
41 __m128 vxKLMN = _mm_loadu_ps(x + 20);
42 x += 24;
43
44 vx0123 = _mm_mul_ps(vx0123, vscale);
45 vx4567 = _mm_mul_ps(vx4567, vscale);
46 vx89AB = _mm_mul_ps(vx89AB, vscale);
47 vxCDEF = _mm_mul_ps(vxCDEF, vscale);
48 vxGHIJ = _mm_mul_ps(vxGHIJ, vscale);
49 vxKLMN = _mm_mul_ps(vxKLMN, vscale);
50
51 vx0123 = _mm_min_ps(vx0123, voutput_max_less_zero_point);
52 vx4567 = _mm_min_ps(vx4567, voutput_max_less_zero_point);
53 vx89AB = _mm_min_ps(vx89AB, voutput_max_less_zero_point);
54 vxCDEF = _mm_min_ps(vxCDEF, voutput_max_less_zero_point);
55 vxGHIJ = _mm_min_ps(vxGHIJ, voutput_max_less_zero_point);
56 vxKLMN = _mm_min_ps(vxKLMN, voutput_max_less_zero_point);
57
58 const __m128i vy0123 = _mm_cvtps_epi32(vx0123);
59 const __m128i vy4567 = _mm_cvtps_epi32(vx4567);
60 const __m128i vy89AB = _mm_cvtps_epi32(vx89AB);
61 const __m128i vyCDEF = _mm_cvtps_epi32(vxCDEF);
62 const __m128i vyGHIJ = _mm_cvtps_epi32(vxGHIJ);
63 const __m128i vyKLMN = _mm_cvtps_epi32(vxKLMN);
64
65 __m128i vy01234567 = _mm_packs_epi32(vy0123, vy4567);
66 __m128i vy89ABCDEF = _mm_packs_epi32(vy89AB, vyCDEF);
67 __m128i vyGHIJKLMN = _mm_packs_epi32(vyGHIJ, vyKLMN);
68
69 vy01234567 = _mm_adds_epi16(vy01234567, voutput_zero_point);
70 vy89ABCDEF = _mm_adds_epi16(vy89ABCDEF, voutput_zero_point);
71 vyGHIJKLMN = _mm_adds_epi16(vyGHIJKLMN, voutput_zero_point);
72
73
74 __m128i vy0123456789ABCDEF = _mm_packus_epi16(vy01234567, vy89ABCDEF);
75 vyGHIJKLMN = _mm_packus_epi16(vyGHIJKLMN, vyGHIJKLMN);
76
77 vy0123456789ABCDEF = _mm_max_epu8(vy0123456789ABCDEF, voutput_min);
78 vyGHIJKLMN = _mm_max_epu8(vyGHIJKLMN, voutput_min);
79
80 _mm_storeu_si128((__m128i*) y, vy0123456789ABCDEF);
81 _mm_storel_epi64((__m128i*) (y + 16), vyGHIJKLMN);
82 y += 24;
83 }
84 for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
85 __m128 vx_lo = _mm_loadu_ps(x);
86 __m128 vx_hi = _mm_loadu_ps(x + 4);
87 x += 8;
88
89 vx_lo = _mm_mul_ps(vx_lo, vscale);
90 vx_hi = _mm_mul_ps(vx_hi, vscale);
91
92 vx_lo = _mm_min_ps(vx_lo, voutput_max_less_zero_point);
93 vx_hi = _mm_min_ps(vx_hi, voutput_max_less_zero_point);
94
95 const __m128i vy_lo = _mm_cvtps_epi32(vx_lo);
96 const __m128i vy_hi = _mm_cvtps_epi32(vx_hi);
97
98 __m128i vy = _mm_packs_epi32(vy_lo, vy_hi);
99 vy = _mm_adds_epi16(vy, voutput_zero_point);
100 vy = _mm_packus_epi16(vy, vy);
101 vy = _mm_max_epu8(vy, voutput_min);
102
103 _mm_storel_epi64((__m128i*) y, vy);
104 y += 8;
105 }
106 if XNN_UNLIKELY(n != 0) {
107 __m128 vx_lo = _mm_loadu_ps(x);
108 const float* x_hi = (const float*) ((uintptr_t) x + (n & (4 * sizeof(float))));
109 __m128 vx_hi = _mm_loadu_ps(x_hi);
110
111 vx_lo = _mm_mul_ps(vx_lo, vscale);
112 vx_hi = _mm_mul_ps(vx_hi, vscale);
113
114 vx_lo = _mm_min_ps(vx_lo, voutput_max_less_zero_point);
115 vx_hi = _mm_min_ps(vx_hi, voutput_max_less_zero_point);
116
117 const __m128i vy_lo = _mm_cvtps_epi32(vx_lo);
118 const __m128i vy_hi = _mm_cvtps_epi32(vx_hi);
119
120 __m128i vy = _mm_packs_epi32(vy_lo, vy_hi);
121 vy = _mm_adds_epi16(vy, voutput_zero_point);
122 vy = _mm_packus_epi16(vy, vy);
123 vy = _mm_max_epu8(vy, voutput_min);
124
125 if (n & (4 * sizeof(float))) {
126 unaligned_store_u32(y, (uint32_t) _mm_cvtsi128_si32(vy));
127 y += 4;
128 vy = _mm_srli_epi64(vy, 32);
129 }
130 {
131 uint32_t vy_lo = (uint32_t) _mm_cvtsi128_si32(vy);
132 if (n & (2 * sizeof(float))) {
133 unaligned_store_u16(y, (uint16_t) vy_lo);
134 y += 2;
135 vy_lo >>= 16;
136 }
137 if (n & (1 * sizeof(float))) {
138 *y = (uint8_t) vy_lo;
139 }
140 }
141 }
142 }
143