Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 1 | // Auto-generated file. Do not edit! |
Marat Dukhan | 66ccf64 | 2020-09-28 16:23:42 -0700 | [diff] [blame] | 2 | // Template: src/qs8-igemm/MRx4c8-sse.c.in |
Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 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 <tmmintrin.h> |
| 13 | |
Marat Dukhan | 1566fee | 2020-08-02 21:55:41 -0700 | [diff] [blame] | 14 | #include <xnnpack/igemm.h> |
Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 15 | |
| 16 | |
| 17 | void xnn_qs8_igemm_minmax_ukernel_1x4c8__ssse3_ld128( |
| 18 | size_t mr, |
| 19 | size_t nc, |
| 20 | size_t kc, |
| 21 | size_t ks, |
| 22 | const int8_t** restrict a, |
| 23 | const void* restrict w, |
| 24 | int8_t* restrict c, |
| 25 | size_t cm_stride, |
| 26 | size_t cn_stride, |
| 27 | size_t a_offset, |
| 28 | const int8_t* zero, |
| 29 | const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN |
| 30 | { |
| 31 | assert(mr != 0); |
| 32 | assert(mr <= 1); |
| 33 | assert(nc != 0); |
| 34 | assert(kc != 0); |
Marat Dukhan | 1280952 | 2020-08-02 22:23:51 -0700 | [diff] [blame] | 35 | assert(ks != 0); |
| 36 | assert(ks % (1 * sizeof(void*)) == 0); |
| 37 | assert(a_offset % sizeof(int8_t) == 0); |
Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 38 | assert(a != NULL); |
| 39 | assert(w != NULL); |
| 40 | assert(c != NULL); |
| 41 | |
| 42 | int8_t* c0 = c; |
| 43 | |
| 44 | do { |
| 45 | __m128i vacc0x0 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[0]); |
| 46 | __m128i vacc0x1 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[1]); |
| 47 | __m128i vacc0x2 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[2]); |
| 48 | __m128i vacc0x3 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[3]); |
| 49 | w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t)); |
| 50 | |
| 51 | size_t p = ks; |
| 52 | do { |
| 53 | const int8_t* restrict a0 = a[0]; |
| 54 | if XNN_UNPREDICTABLE(a0 != zero) { |
| 55 | a0 = (const int8_t*) ((uintptr_t) a0 + a_offset); |
| 56 | } |
| 57 | a += 1; |
| 58 | |
| 59 | size_t k = 0; |
| 60 | while (k < kc) { |
| 61 | const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0); |
| 62 | const __m128i vxa0 = _mm_unpacklo_epi8(va0, _mm_cmpgt_epi8(_mm_setzero_si128(), va0)); |
| 63 | a0 += 8; |
| 64 | |
| 65 | const __m128i vb01 = _mm_load_si128((const __m128i*) w); |
| 66 | const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01); |
| 67 | const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01); |
| 68 | const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01); |
| 69 | |
| 70 | vacc0x0 = _mm_add_epi32(vacc0x0, _mm_madd_epi16(vxa0, vxb0)); |
| 71 | vacc0x1 = _mm_add_epi32(vacc0x1, _mm_madd_epi16(vxa0, vxb1)); |
| 72 | const __m128i vb23 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16)); |
| 73 | const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23); |
| 74 | const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23); |
| 75 | const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23); |
| 76 | |
| 77 | vacc0x2 = _mm_add_epi32(vacc0x2, _mm_madd_epi16(vxa0, vxb2)); |
| 78 | vacc0x3 = _mm_add_epi32(vacc0x3, _mm_madd_epi16(vxa0, vxb3)); |
| 79 | |
| 80 | w = (const void*) ((uintptr_t) w + 32); |
| 81 | k += 8 * sizeof(int8_t); |
| 82 | } |
| 83 | p -= 1 * sizeof(void*); |
| 84 | } while (p != 0); |
| 85 | |
| 86 | const __m128i vacc0x01 = _mm_hadd_epi32(vacc0x0, vacc0x1); |
| 87 | const __m128i vacc0x23 = _mm_hadd_epi32(vacc0x2, vacc0x3); |
| 88 | |
| 89 | __m128i vacc0x0123 = _mm_hadd_epi32(vacc0x01, vacc0x23); |
| 90 | |
| 91 | const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier); |
| 92 | const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding); |
| 93 | |
| 94 | const __m128i vnmask0x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc0x0123); |
| 95 | |
| 96 | const __m128i vabsacc0x0123 = _mm_abs_epi32(vacc0x0123); |
| 97 | |
Marat Dukhan | 23848db | 2020-08-05 09:10:16 -0700 | [diff] [blame] | 98 | const __m128i vabsacc0x1133 = _mm_shuffle_epi32(vabsacc0x0123, _MM_SHUFFLE(3, 3, 1, 1)); |
Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 99 | |
| 100 | const __m128i vabsprod0x02 = _mm_mul_epu32(vabsacc0x0123, vmultiplier); |
| 101 | |
| 102 | const __m128i vnmask0x02 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(2, 2, 0, 0)); |
| 103 | |
| 104 | const __m128i vprod0x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x02, vnmask0x02), vnmask0x02); |
| 105 | |
| 106 | const __m128i vq31prod0x02 = _mm_srli_epi64(_mm_add_epi64(vprod0x02, vrounding), 31); |
| 107 | |
Marat Dukhan | 23848db | 2020-08-05 09:10:16 -0700 | [diff] [blame] | 108 | const __m128i vabsprod0x13 = _mm_mul_epu32(vabsacc0x1133, vmultiplier); |
Marat Dukhan | 07bd252 | 2020-07-31 19:12:39 -0700 | [diff] [blame] | 109 | |
| 110 | const __m128i vnmask0x13 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(3, 3, 1, 1)); |
| 111 | |
| 112 | const __m128i vprod0x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x13, vnmask0x13), vnmask0x13); |
| 113 | |
| 114 | const __m128i vq31prod0x13 = _mm_srli_epi64(_mm_add_epi64(vprod0x13, vrounding), 31); |
| 115 | |
| 116 | const __m128i vq31prod0x0213 = _mm_castps_si128(_mm_shuffle_ps( |
| 117 | _mm_castsi128_ps(vq31prod0x02), _mm_castsi128_ps(vq31prod0x13), _MM_SHUFFLE(2, 0, 2, 0))); |
| 118 | |
| 119 | const __m128i vq31prod0x0123 = _mm_shuffle_epi32(vq31prod0x0213, _MM_SHUFFLE(3, 1, 2, 0)); |
| 120 | |
| 121 | const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask); |
| 122 | const __m128i vrem0x0123 = |
| 123 | _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123)); |
| 124 | |
| 125 | const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold); |
| 126 | const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift); |
| 127 | vacc0x0123 = |
| 128 | _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold)); |
| 129 | |
| 130 | const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point); |
| 131 | __m128i vacc00x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc0x0123), voutput_zero_point); |
| 132 | |
| 133 | const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min); |
| 134 | const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max); |
| 135 | vacc00x0123 = _mm_min_epi16(_mm_max_epi16(vacc00x0123, voutput_min), voutput_max); |
| 136 | |
| 137 | __m128i vout = _mm_packs_epi16(vacc00x0123, vacc00x0123); |
| 138 | |
| 139 | if (nc >= 4) { |
| 140 | *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout); |
| 141 | c0 = (int8_t*) ((uintptr_t) c0 + cn_stride); |
| 142 | |
| 143 | a = (const int8_t**restrict) ((uintptr_t) a - ks); |
| 144 | |
| 145 | nc -= 4; |
| 146 | } else { |
| 147 | if (nc & 2) { |
| 148 | *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0); |
| 149 | c0 += 2; |
| 150 | vout = _mm_srli_epi32(vout, 16); |
| 151 | } |
| 152 | if (nc & 1) { |
| 153 | *((int8_t*) c0) = (int8_t) _mm_cvtsi128_si32(vout); |
| 154 | } |
| 155 | |
| 156 | nc = 0; |
| 157 | } |
| 158 | } while (nc != 0); |
| 159 | } |