1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-vlrelu/sse4.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2022 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 <immintrin.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/vlrelu.h>
17
18
xnn_qu8_vlrelu_ukernel__sse41_x8(size_t n,const uint8_t * x,uint8_t * y,const union xnn_qu8_lrelu_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qu8_vlrelu_ukernel__sse41_x8(
20 size_t n,
21 const uint8_t* x,
22 uint8_t* y,
23 const union xnn_qu8_lrelu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
24 {
25 assert(n != 0);
26 assert(n % sizeof(uint8_t) == 0);
27 assert(x != NULL);
28 assert(y != NULL);
29
30 const __m128i vinput_zero_point = _mm_load_si128((const __m128i*) params->sse2.input_zero_point);
31 const __m128i vmultiplier_diff = _mm_load_si128((const __m128i*) params->sse2.multiplier_diff);
32 const __m128i vmultiplier_base = _mm_load_si128((const __m128i*) params->sse2.multiplier_base);
33 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
34 for (; n >= 8 * sizeof(uint8_t); n -= 8 * sizeof(uint8_t)) {
35 __m128i vacc = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) x));
36 __m128i vmultiplier = _mm_cmpgt_epi16(vacc, vinput_zero_point);
37 vacc = _mm_sub_epi16(vinput_zero_point, vacc);
38 vmultiplier = _mm_and_si128(vmultiplier, vmultiplier_diff);
39 vacc = _mm_slli_epi16(vacc, 7);
40 vmultiplier = _mm_xor_si128(vmultiplier, vmultiplier_base);
41 vacc = _mm_mulhrs_epi16(vacc, vmultiplier);
42 vacc = _mm_adds_epi16(vacc, voutput_zero_point);
43 x += 8;
44
45 const __m128i vy = _mm_packus_epi16(vacc, vacc);
46 _mm_storel_epi64((__m128i*) y, vy);
47 y += 8;
48 }
49 if XNN_UNLIKELY(n != 0) {
50 assert(n >= 1 * sizeof(uint8_t));
51 assert(n <= 7 * sizeof(uint8_t));
52
53 __m128i vacc = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) x));
54 __m128i vmultiplier = _mm_cmpgt_epi16(vacc, vinput_zero_point);
55 vacc = _mm_sub_epi16(vinput_zero_point, vacc);
56 vmultiplier = _mm_and_si128(vmultiplier, vmultiplier_diff);
57 vacc = _mm_slli_epi16(vacc, 7);
58 vmultiplier = _mm_xor_si128(vmultiplier, vmultiplier_base);
59 vacc = _mm_mulhrs_epi16(vacc, vmultiplier);
60 vacc = _mm_adds_epi16(vacc, voutput_zero_point);
61
62 __m128i vy = _mm_packus_epi16(vacc, vacc);
63 if (n & (4 * sizeof(uint8_t))) {
64 _mm_storeu_si32(y, vy);
65 vy = _mm_srli_epi64(vy, 32);
66 y += 4;
67 }
68 if (n & (2 * sizeof(uint8_t))) {
69 _mm_storeu_si16(y, vy);
70 vy = _mm_srli_epi32(vy, 16);
71 y += 2;
72 }
73 if (n & (1 * sizeof(uint8_t))) {
74 *y = (uint8_t) _mm_extract_epi8(vy, 0);
75 }
76 }
77 }
78