Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 1 | // Auto-generated file. Do not edit! |
| 2 | // Template: src/f32-gemm/4x8-aarch64-neonfma-cortex-a53.S.in |
| 3 | // Generator: tools/xngen |
| 4 | // |
| 5 | // Copyright 2019 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 <xnnpack/assembly.h> |
| 11 | |
| 12 | # void xnn_f32_gemm_ukernel_4x8__aarch64_neonfma_cortex_a53( |
| 13 | # size_t mr, x0 |
| 14 | # size_t nc, x1 |
| 15 | # size_t kc, x2 / x0 |
| 16 | # const uint8_t*restrict a, x3 |
| 17 | # size_t a_stride, x4 |
| 18 | # const void*restrict w, x5 |
| 19 | # uint8_t*restrict c, x6 |
| 20 | # size_t cm_stride, x7 |
| 21 | # size_t cn_stride, [sp] -> x14 |
Marat Dukhan | eb09a6b | 2020-04-08 17:34:32 -0700 | [diff] [blame] | 22 | # const union xnn_f32_minmax_params params[restrict static 1]) [sp + 8] -> x8 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 23 | |
| 24 | # d8-d15 need to be preserved if used. |
| 25 | # x19-30 need to be preserved if used. |
| 26 | |
| 27 | # A pointers |
| 28 | # x3 a0 |
| 29 | # x9 a1 |
| 30 | # x10 a2 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 31 | # x11 a3 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 32 | |
| 33 | # C pointers |
| 34 | # x6 c0 |
| 35 | # x16 c1 |
| 36 | # x17 c2 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 37 | # x18 c3 |
| 38 | |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 39 | # x4 temporary vector shadow register |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 40 | |
| 41 | # Vector register usage |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 42 | # A0 v0 v3 |
| 43 | # A1 v0[1] v3[1] |
| 44 | # A2 v1 v4 |
| 45 | # A3 v1[1] v4[1] |
| 46 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 47 | # B v12 v13 v14 v15 second set of B |
| 48 | # B v16 v17 v18 v19 first set |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 49 | # C v20 v21 |
| 50 | # C v22 v23 |
| 51 | # C v24 v25 |
| 52 | # C v26 v27 |
| 53 | # Clamp v6 v7 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 54 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 55 | # unused A v8 v9 v10 v11 |
| 56 | # x12 a4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 57 | # x13 c4 |
| 58 | # x7 c5 |
| 59 | # A4 v2 v5 |
| 60 | # A5 v2[1] v5[1] |
| 61 | # C v28 v29 |
| 62 | # C v30 v31 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 63 | |
| 64 | BEGIN_FUNCTION xnn_f32_gemm_ukernel_4x8__aarch64_neonfma_cortex_a53 |
| 65 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 66 | # Clamp A and C pointers |
Frank Barchard | 684bbb0 | 2019-11-16 14:14:42 -0800 | [diff] [blame] | 67 | CMP x0, 2 // if mr < 2 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 68 | ADD x9, x3, x4 // a1 = a0 + a_stride |
| 69 | ADD x16, x6, x7 // c1 = c0 + cm_stride |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 70 | CSEL x9, x3, x9, LO // a1 = a0 |
| 71 | CSEL x16, x6, x16, LO // c1 = c0 |
| 72 | |
| 73 | ADD x10, x9, x4 // a2 = a1 + a_stride |
| 74 | ADD x17, x16, x7 // c2 = c1 + cm_stride |
| 75 | // if mr <= 2 |
| 76 | CSEL x10, x9, x10, LS // a2 = a1 |
| 77 | CSEL x17, x16, x17, LS // c2 = c1 |
| 78 | |
Frank Barchard | 684bbb0 | 2019-11-16 14:14:42 -0800 | [diff] [blame] | 79 | CMP x0, 4 // if mr < 4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 80 | ADD x11, x10, x4 // a3 = a2 + a_stride |
| 81 | ADD x18, x17, x7 // c3 = c2 + cm_stride |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 82 | CSEL x11, x10, x11, LO // a3 = a2 |
| 83 | CSEL x18, x17, x18, LO // c3 = c2 |
| 84 | |
| 85 | # Load params pointer |
| 86 | LDR x8, [sp, 8] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 87 | |
Marat Dukhan | eb09a6b | 2020-04-08 17:34:32 -0700 | [diff] [blame] | 88 | # Load min/max values |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 89 | LD2R {v6.4s, v7.4s}, [x8] |
| 90 | |
| 91 | # Load cn_stride |
| 92 | LDR x14, [sp] |
| 93 | |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 94 | // Save d12-d15 on stack |
| 95 | STP d12, d13, [sp, -32]! |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 96 | STP d14, d15, [sp, 16] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 97 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 98 | 0: |
| 99 | # Load initial bias from w into accumulators |
| 100 | LDP q20, q21, [x5], 32 |
| 101 | MOV v22.16b, v20.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 102 | PRFM PLDL1KEEP, [x3, 0] // Prefetch A |
| 103 | PRFM PLDL1KEEP, [x3, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 104 | MOV v23.16b, v21.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 105 | PRFM PLDL1KEEP, [x9, 0] |
| 106 | PRFM PLDL1KEEP, [x9, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 107 | MOV v24.16b, v20.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 108 | PRFM PLDL1KEEP, [x10, 0] |
| 109 | PRFM PLDL1KEEP, [x10, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 110 | MOV v25.16b, v21.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 111 | PRFM PLDL1KEEP, [x11, 0] |
| 112 | PRFM PLDL1KEEP, [x11, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 113 | MOV v26.16b, v20.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 114 | PRFM PLDL1KEEP, [x5, 0] // Prefetch B |
Frank Barchard | 534375d | 2020-01-15 19:22:41 -0800 | [diff] [blame] | 115 | MOV v27.16b, v21.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 116 | PRFM PLDL1KEEP, [x5, 64] |
| 117 | PRFM PLDL1KEEP, [x5, 128] |
| 118 | PRFM PLDL1KEEP, [x5, 192] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 119 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 120 | # Is there at least 4 floats (16 bytes) for prologue + epilogue? |
| 121 | SUBS x0, x2, 16 // k = kc - 16 |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 122 | B.LO 5f |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 123 | |
| 124 | # Prologue - First group loads, no FMA |
| 125 | LDR d0, [x3], 8 // a0 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 126 | LDP q16, q17, [x5], 32 // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 127 | LDR d1, [x10], 8 // a2 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 128 | LD1 {v0.d}[1], [x9], 8 // a1 |
| 129 | LD1 {v1.d}[1], [x11], 8 // a3 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 130 | SUBS x0, x0, 16 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 131 | LDR q18, [x5], 16 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 132 | LDR d19, [x5], 8 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 133 | LDR x4, [x5], 8 // ins is in BLOCK 0 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 134 | |
| 135 | # Is there at least 4 floats (16 bytes) for main loop? |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 136 | B.LO 2f |
| 137 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 138 | # Main loop - 4 floats of A (16 bytes) |
| 139 | # 32 FMA + 8 LD64 A + 8 LDR B |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 140 | 1: |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 141 | # First group of 16 FMA, Second group loads |
| 142 | // BLOCK 0 |
| 143 | LDR d3, [x3], 8 // a0 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 144 | INS v19.d[1], x4 // b from second group |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 145 | FMLA v20.4s, v16.4s, v0.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 146 | LDR x4, [x9], 8 // a1 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 147 | FMLA v22.4s, v16.4s, v0.s[2] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 148 | FMLA v24.4s, v16.4s, v1.s[0] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 149 | |
| 150 | // BLOCK 1 |
| 151 | LDR d12, [x5] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 152 | INS v3.d[1], x4 // a1 ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 153 | FMLA v26.4s, v16.4s, v1.s[2] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 154 | LDR x4, [x5, 8] // b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 155 | FMLA v21.4s, v17.4s, v0.s[0] |
| 156 | FMLA v23.4s, v17.4s, v0.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 157 | |
| 158 | // BLOCK 2 |
| 159 | LDR d4, [x10], 8 // a2 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 160 | INS v12.d[1], x4 // b ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 161 | FMLA v25.4s, v17.4s, v1.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 162 | LDR x4, [x11], 8 // a3 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 163 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 164 | FMLA v20.4s, v18.4s, v0.s[1] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 165 | |
| 166 | // BLOCK 3 |
| 167 | LDR d13, [x5, 16] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 168 | INS v4.d[1], x4 // a3 ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 169 | FMLA v22.4s, v18.4s, v0.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 170 | LDR x4, [x5, 24] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 171 | FMLA v24.4s, v18.4s, v1.s[1] |
| 172 | FMLA v26.4s, v18.4s, v1.s[3] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 173 | |
| 174 | // BLOCK 4 |
| 175 | LDR d14, [x5, 32] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 176 | INS v13.d[1], x4 // b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 177 | FMLA v21.4s, v19.4s, v0.s[1] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 178 | LDR x4, [x5, 40] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 179 | FMLA v23.4s, v19.4s, v0.s[3] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 180 | FMLA v25.4s, v19.4s, v1.s[1] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 181 | |
| 182 | // BLOCK 5 |
| 183 | // NOPs to ensure 4 cycle LDR lands on next LDR |
| 184 | LDR d15, [x5, 48] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 185 | INS v14.d[1], x4 // b from previous |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 186 | FMLA v27.4s, v19.4s, v1.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 187 | LDR x4, [x5, 56] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 188 | NOP |
| 189 | NOP |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 190 | NOP |
| 191 | NOP |
| 192 | |
| 193 | # Second group of 16 FMA, First group of loads |
| 194 | // BLOCK 0 |
| 195 | LDR d0, [x3], 8 // a0 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 196 | INS v15.d[1], x4 // b from previous |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 197 | FMLA v20.4s, v12.4s, v3.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 198 | LDR x4, [x9], 8 // a1 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 199 | FMLA v22.4s, v12.4s, v3.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 200 | FMLA v24.4s, v12.4s, v4.s[0] |
| 201 | PRFM PLDL1KEEP, [x3, 128] // Prefetch A0 |
| 202 | |
| 203 | // BLOCK 1 |
| 204 | LDR d16, [x5, 64] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 205 | INS v0.d[1], x4 // a1 ins |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 206 | FMLA v26.4s, v12.4s, v4.s[2] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 207 | LDR x4, [x5, 72] // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 208 | FMLA v21.4s, v13.4s, v3.s[0] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 209 | FMLA v23.4s, v13.4s, v3.s[2] |
| 210 | PRFM PLDL1KEEP, [x9, 128] // Prefetch A1 |
| 211 | |
| 212 | // BLOCK 2 |
| 213 | LDR d1, [x10], 8 // a2 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 214 | INS v16.d[1], x4 // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 215 | FMLA v25.4s, v13.4s, v4.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 216 | LDR x4, [x11], 8 // a3 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 217 | FMLA v27.4s, v13.4s, v4.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 218 | FMLA v20.4s, v14.4s, v3.s[1] |
| 219 | PRFM PLDL1KEEP, [x10, 128] // Prefetch A2 |
| 220 | |
| 221 | // BLOCK 3 |
| 222 | LDR d17, [x5, 80] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 223 | INS v1.d[1], x4 // a3 ins |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 224 | FMLA v22.4s, v14.4s, v3.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 225 | LDR x4, [x5, 88] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 226 | FMLA v24.4s, v14.4s, v4.s[1] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 227 | FMLA v26.4s, v14.4s, v4.s[3] |
| 228 | PRFM PLDL1KEEP, [x11, 128] // Prefetch A3 |
| 229 | |
| 230 | // BLOCK 4 |
| 231 | LDR d18, [x5, 96] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 232 | INS v17.d[1], x4 // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 233 | FMLA v21.4s, v15.4s, v3.s[1] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 234 | LDR x4, [x5, 104] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 235 | FMLA v23.4s, v15.4s, v3.s[3] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 236 | FMLA v25.4s, v15.4s, v4.s[1] |
Frank Barchard | 534375d | 2020-01-15 19:22:41 -0800 | [diff] [blame] | 237 | PRFM PLDL1KEEP, [x5, 192] // Prefetch B |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 238 | |
| 239 | // BLOCK 5 |
| 240 | // NOTE that block needs to be 4 cycles for LDR not to stall |
| 241 | LDR d19, [x5, 112] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 242 | INS v18.d[1], x4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 243 | FMLA v27.4s, v15.4s, v4.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 244 | LDR x4, [x5, 120] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 245 | SUBS x0, x0, 16 |
Frank Barchard | 534375d | 2020-01-15 19:22:41 -0800 | [diff] [blame] | 246 | PRFM PLDL1KEEP, [x5, 256] // Prefetch B |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 247 | ADD x5, x5, 128 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 248 | B.HS 1b |
| 249 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 250 | # Epilogue - 4 floats of A (16 bytes) |
| 251 | # 32 FMA + 8 LD64 A + 8 LDR B |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 252 | 2: |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 253 | # First group of 16 FMA, Second group loads |
| 254 | // BLOCK 0 |
| 255 | LDR d3, [x3], 8 // a0 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 256 | INS v19.d[1], x4 // b from second group |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 257 | FMLA v20.4s, v16.4s, v0.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 258 | LDR x4, [x9], 8 // a1 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 259 | FMLA v22.4s, v16.4s, v0.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 260 | FMLA v24.4s, v16.4s, v1.s[0] |
| 261 | |
| 262 | // BLOCK 1 |
| 263 | LDR d12, [x5] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 264 | INS v3.d[1], x4 // a1 ins |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 265 | FMLA v26.4s, v16.4s, v1.s[2] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 266 | LDR x4, [x5, 8] // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 267 | FMLA v21.4s, v17.4s, v0.s[0] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 268 | FMLA v23.4s, v17.4s, v0.s[2] |
| 269 | |
| 270 | // BLOCK 2 |
| 271 | LDR d4, [x10], 8 // a2 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 272 | INS v12.d[1], x4 // b ins |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 273 | FMLA v25.4s, v17.4s, v1.s[0] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 274 | LDR x4, [x11], 8 // a3 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 275 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 276 | FMLA v20.4s, v18.4s, v0.s[1] |
| 277 | |
| 278 | // BLOCK 3 |
| 279 | LDR d13, [x5, 16] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 280 | INS v4.d[1], x4 // a3 ins |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 281 | FMLA v22.4s, v18.4s, v0.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 282 | LDR x4, [x5, 24] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 283 | FMLA v24.4s, v18.4s, v1.s[1] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 284 | FMLA v26.4s, v18.4s, v1.s[3] |
| 285 | |
| 286 | // BLOCK 4 |
| 287 | LDR d14, [x5, 32] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 288 | INS v13.d[1], x4 // b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 289 | FMLA v21.4s, v19.4s, v0.s[1] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 290 | LDR x4, [x5, 40] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 291 | FMLA v23.4s, v19.4s, v0.s[3] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 292 | FMLA v25.4s, v19.4s, v1.s[1] |
| 293 | |
| 294 | // BLOCK 5 |
Frank Barchard | 82cfe18 | 2019-11-15 15:01:30 -0800 | [diff] [blame] | 295 | // NOPs to ensure 4 cycle LDR lands on next LDR |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 296 | LDR d15, [x5, 48] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 297 | INS v14.d[1], x4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 298 | FMLA v27.4s, v19.4s, v1.s[3] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 299 | LDR x4, [x5, 56] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 300 | NOP // fma |
Frank Barchard | 82cfe18 | 2019-11-15 15:01:30 -0800 | [diff] [blame] | 301 | NOP |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 302 | NOP // fma |
Frank Barchard | 82cfe18 | 2019-11-15 15:01:30 -0800 | [diff] [blame] | 303 | NOP |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 304 | |
| 305 | # Second group of 16 FMA, no loads |
| 306 | // BLOCK 0 |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 307 | INS v15.d[1], x4 // b from previous |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 308 | FMLA v20.4s, v12.4s, v3.s[0] |
| 309 | FMLA v22.4s, v12.4s, v3.s[2] |
| 310 | FMLA v24.4s, v12.4s, v4.s[0] |
| 311 | |
| 312 | // BLOCK 1 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 313 | FMLA v26.4s, v12.4s, v4.s[2] |
| 314 | FMLA v21.4s, v13.4s, v3.s[0] |
| 315 | FMLA v23.4s, v13.4s, v3.s[2] |
| 316 | |
| 317 | // BLOCK 2 |
| 318 | FMLA v25.4s, v13.4s, v4.s[0] |
| 319 | FMLA v27.4s, v13.4s, v4.s[2] |
| 320 | FMLA v20.4s, v14.4s, v3.s[1] |
| 321 | |
| 322 | // BLOCK 3 |
| 323 | FMLA v22.4s, v14.4s, v3.s[3] |
| 324 | FMLA v24.4s, v14.4s, v4.s[1] |
| 325 | FMLA v26.4s, v14.4s, v4.s[3] |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 326 | TST x0, 15 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 327 | |
| 328 | // BLOCK 4 |
| 329 | FMLA v21.4s, v15.4s, v3.s[1] |
| 330 | FMLA v23.4s, v15.4s, v3.s[3] |
| 331 | FMLA v25.4s, v15.4s, v4.s[1] |
| 332 | ADD x5, x5, 64 |
| 333 | |
| 334 | // BLOCK 5 |
| 335 | FMLA v27.4s, v15.4s, v4.s[3] |
| 336 | |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 337 | # Is there a remainder?- 2 floats of A (8 bytes) or less |
| 338 | B.NE 5f |
| 339 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 340 | 4: |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 341 | # Clamp |
Marat Dukhan | a51cf48 | 2020-04-08 16:16:19 -0700 | [diff] [blame] | 342 | FMAX v20.4s, v20.4s, v6.4s |
Frank Barchard | 73ccfb4 | 2019-12-11 22:15:22 -0800 | [diff] [blame] | 343 | SUBS x1, x1, 8 |
Marat Dukhan | a51cf48 | 2020-04-08 16:16:19 -0700 | [diff] [blame] | 344 | FMAX v21.4s, v21.4s, v6.4s |
| 345 | FMAX v22.4s, v22.4s, v6.4s |
| 346 | FMAX v23.4s, v23.4s, v6.4s |
| 347 | FMAX v24.4s, v24.4s, v6.4s |
| 348 | FMAX v25.4s, v25.4s, v6.4s |
| 349 | FMAX v26.4s, v26.4s, v6.4s |
| 350 | FMAX v27.4s, v27.4s, v6.4s |
| 351 | FMIN v20.4s, v20.4s, v7.4s |
| 352 | FMIN v21.4s, v21.4s, v7.4s |
| 353 | FMIN v22.4s, v22.4s, v7.4s |
| 354 | FMIN v23.4s, v23.4s, v7.4s |
| 355 | FMIN v24.4s, v24.4s, v7.4s |
| 356 | FMIN v25.4s, v25.4s, v7.4s |
| 357 | FMIN v26.4s, v26.4s, v7.4s |
| 358 | FMIN v27.4s, v27.4s, v7.4s |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 359 | |
| 360 | # Store full 4 x 8 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 361 | B.LO 8f |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 362 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 363 | ST1 {v20.16b, v21.16b}, [x6], x14 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 364 | SUB x3, x3, x2 // a0 -= kc |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 365 | ST1 {v22.16b, v23.16b}, [x16], x14 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 366 | SUB x9, x9, x2 // a1 -= kc |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 367 | ST1 {v24.16b, v25.16b}, [x17], x14 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 368 | SUB x10, x10, x2 // a2 -= kc |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 369 | ST1 {v26.16b, v27.16b}, [x18], x14 |
| 370 | SUB x11, x11, x2 // a3 -= kc |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 371 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 372 | B.HI 0b |
| 373 | |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 374 | // Restore d12-d15 from stack |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 375 | LDP d14, d15, [sp, 16] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 376 | LDP d12, d13, [sp], 32 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 377 | RET |
| 378 | |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 379 | 5: |
| 380 | # Is there a remainder?- 2 floats of A (8 bytes) |
| 381 | TBZ x0, 3, 6f |
| 382 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 383 | # Remainder- 2 floats of A (8 bytes) |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 384 | LDR d0, [x3], 8 |
| 385 | LDR q16, [x5], 16 |
| 386 | LD1 {v0.d}[1], [x9], 8 |
| 387 | LDR d1, [x10], 8 |
| 388 | LD1 {v1.d}[1], [x11], 8 |
| 389 | LDR q17, [x5], 16 |
| 390 | LDR q18, [x5], 16 |
| 391 | LDR q19, [x5], 16 |
| 392 | FMLA v20.4s, v16.4s, v0.s[0] |
| 393 | FMLA v22.4s, v16.4s, v0.s[2] |
| 394 | FMLA v24.4s, v16.4s, v1.s[0] |
| 395 | FMLA v26.4s, v16.4s, v1.s[2] |
| 396 | FMLA v21.4s, v17.4s, v0.s[0] |
| 397 | FMLA v23.4s, v17.4s, v0.s[2] |
| 398 | FMLA v25.4s, v17.4s, v1.s[0] |
| 399 | FMLA v27.4s, v17.4s, v1.s[2] |
| 400 | |
| 401 | FMLA v20.4s, v18.4s, v0.s[1] |
| 402 | FMLA v22.4s, v18.4s, v0.s[3] |
| 403 | FMLA v24.4s, v18.4s, v1.s[1] |
| 404 | FMLA v26.4s, v18.4s, v1.s[3] |
| 405 | FMLA v21.4s, v19.4s, v0.s[1] |
| 406 | FMLA v23.4s, v19.4s, v0.s[3] |
| 407 | FMLA v25.4s, v19.4s, v1.s[1] |
| 408 | FMLA v27.4s, v19.4s, v1.s[3] |
| 409 | |
| 410 | # Is there a remainder?- 1 floats of A (4 bytes) |
| 411 | TBZ x0, 2, 4b |
| 412 | |
Frank Barchard | 8155854 | 2020-02-11 16:35:26 -0800 | [diff] [blame] | 413 | 6: |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 414 | # Remainder- 1 floats of A (4 bytes) |
| 415 | LDR s0, [x3], 4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 416 | LDR q16, [x5], 16 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 417 | LD1 {v0.s}[2], [x9], 4 |
| 418 | LDR s1, [x10], 4 |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 419 | LD1 {v1.s}[2], [x11], 4 |
| 420 | LDR q17, [x5], 16 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 421 | |
| 422 | FMLA v20.4s, v16.4s, v0.s[0] |
| 423 | FMLA v22.4s, v16.4s, v0.s[2] |
| 424 | FMLA v24.4s, v16.4s, v1.s[0] |
| 425 | FMLA v26.4s, v16.4s, v1.s[2] |
| 426 | FMLA v21.4s, v17.4s, v0.s[0] |
| 427 | FMLA v23.4s, v17.4s, v0.s[2] |
| 428 | FMLA v25.4s, v17.4s, v1.s[0] |
| 429 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 430 | B 4b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 431 | |
| 432 | # Store odd width |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 433 | 8: |
| 434 | TBZ x1, 2, 9f |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 435 | STR q20, [x6], 16 |
| 436 | MOV v20.16b, v21.16b |
| 437 | STR q22, [x16], 16 |
| 438 | MOV v22.16b, v23.16b |
| 439 | STR q24, [x17], 16 |
| 440 | MOV v24.16b, v25.16b |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 441 | STR q26, [x18], 16 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 442 | MOV v26.16b, v27.16b |
| 443 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 444 | 9: |
| 445 | TBZ x1, 1, 10f |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 446 | STR d20, [x6], 8 |
| 447 | DUP d20, v20.d[1] |
| 448 | STR d22, [x16], 8 |
| 449 | DUP d22, v22.d[1] |
| 450 | STR d24, [x17], 8 |
| 451 | DUP d24, v24.d[1] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 452 | STR d26, [x18], 8 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 453 | DUP d26, v26.d[1] |
| 454 | |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 455 | 10: |
| 456 | TBZ x1, 0, 11f |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 457 | STR s20, [x6] |
| 458 | STR s22, [x16] |
| 459 | STR s24, [x17] |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 460 | STR s26, [x18] |
| 461 | 11: |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 462 | // Restore d12-d15 from stack |
Frank Barchard | 0ecc2ab | 2019-11-14 10:57:48 -0800 | [diff] [blame] | 463 | LDP d14, d15, [sp, 16] |
Frank Barchard | 324f2bb | 2020-01-14 15:12:11 -0800 | [diff] [blame] | 464 | LDP d12, d13, [sp], 32 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 465 | RET |
| 466 | |
| 467 | END_FUNCTION xnn_f32_gemm_ukernel_4x8__aarch64_neonfma_cortex_a53 |
| 468 | |
| 469 | #ifdef __ELF__ |
| 470 | .section ".note.GNU-stack","",%progbits |
| 471 | #endif |