Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 1 | // Copyright 2019 Google LLC |
| 2 | // |
| 3 | // This source code is licensed under the BSD-style license found in the |
| 4 | // LICENSE file in the root directory of this source tree. |
| 5 | |
| 6 | #include <xnnpack/assembly.h> |
| 7 | |
| 8 | # void xnn_f32_igemm_ukernel_4x8__aarch64_neonfma_cortex_a53( |
| 9 | # size_t mr, x0 |
| 10 | # size_t nc, x1 |
| 11 | # size_t kc, x2 / x0 |
| 12 | # size_t ks, x3 / x9 |
| 13 | # const float**restrict a, x4 |
| 14 | # const void*restrict w, x5 |
| 15 | # uint8_t*restrict c, x6 |
| 16 | # size_t cm_stride, x7 |
| 17 | # size_t cn_stride, [sp] -> x10 |
| 18 | # size_t a_offset, [sp + 8] -> x11 |
| 19 | # const float* zero, [sp + 16] -> x12 |
| 20 | # const xnn_f32_output_params params [sp + 24] -> x8 |
| 21 | |
| 22 | # d8-d15 need to be preserved if used. |
| 23 | # x19-30 need to be preserved if used. |
| 24 | |
| 25 | # A pointers |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 26 | # x13 a0 |
| 27 | # x14 a1 |
| 28 | # x15 a2 |
| 29 | # x8 a3 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 30 | |
| 31 | # C pointers |
| 32 | # x6 c0 |
| 33 | # x16 c1 |
| 34 | # x17 c2 |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 35 | # x7 c3 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 36 | |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 37 | # x19 temporary vector shadow register |
| 38 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 39 | # Vector register usage |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 40 | # A0 v0 v3 |
| 41 | # A1 v0[1] v3[1] |
| 42 | # A2 v1 v4 |
| 43 | # A3 v1[1] v4[1] |
| 44 | |
| 45 | # B v12 v13 v14 v15 second set of B |
| 46 | # B v16 v17 v18 v19 first set |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 47 | # C v20 v21 |
| 48 | # C v22 v23 |
| 49 | # C v24 v25 |
| 50 | # C v26 v27 |
| 51 | # Clamp v6 v7 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 52 | |
| 53 | # unused A v8 v9 v10 v11 |
| 54 | # x12 a4 |
| 55 | # x4 a5 |
| 56 | # x13 c4 |
| 57 | # x7 c5 |
| 58 | # A4 v2 v5 |
| 59 | # A5 v2[1] v5[1] |
| 60 | # C v28 v29 |
| 61 | # C v30 v31 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 62 | |
| 63 | BEGIN_FUNCTION xnn_f32_igemm_ukernel_4x8__aarch64_neonfma_cortex_a53 |
| 64 | |
| 65 | # Clamp C pointers |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 66 | CMP x0, 2 // if mr < 2 |
Frank Barchard | 684bbb0 | 2019-11-16 14:14:42 -0800 | [diff] [blame] | 67 | ADD x16, x6, x7 // c1 = c0 + cm_stride |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 68 | CSEL x16, x6, x16, LO // c1 = c0 |
| 69 | |
| 70 | ADD x17, x16, x7 // c2 = c1 + cm_stride |
| 71 | // if mr <= 2 |
| 72 | CSEL x17, x16, x17, LS // c2 = c1 |
| 73 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 74 | CMP x0, 4 // if mr < 4 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 75 | ADD x7, x17, x7 // c3 = c2 + cm_stride |
| 76 | CSEL x7, x17, x7, LO // c3 = c2 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 77 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 78 | # Load cn_stride, a_offset |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 79 | LDP x10, x11, [sp] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 80 | |
| 81 | # Load zero, clamping params pointer |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 82 | LDP x12, x8, [sp, 16] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 83 | |
| 84 | # Load clamping_params values |
| 85 | LD2R {v6.4s, v7.4s}, [x8] |
| 86 | |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 87 | // Save x19, d12-d15 on stack |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 88 | STP d12, d13, [sp, -48]! |
| 89 | STP d14, d15, [sp, 16] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 90 | STP x19, x19, [sp, 32] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 91 | |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 92 | 0: |
| 93 | # Load initial bias from w into accumulators |
| 94 | LDP q20, q21, [x5], 32 |
| 95 | MOV v22.16b, v20.16b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 96 | PRFM PLDL1KEEP, [x13, 0] // Prefetch A |
| 97 | PRFM PLDL1KEEP, [x13, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 98 | MOV v23.16b, v21.16b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 99 | PRFM PLDL1KEEP, [x14, 0] |
| 100 | PRFM PLDL1KEEP, [x14, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 101 | MOV v24.16b, v20.16b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 102 | PRFM PLDL1KEEP, [x15, 0] |
| 103 | PRFM PLDL1KEEP, [x15, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 104 | MOV v25.16b, v21.16b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 105 | PRFM PLDL1KEEP, [x8, 0] |
| 106 | PRFM PLDL1KEEP, [x8, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 107 | MOV v26.16b, v20.16b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 108 | PRFM PLDL1KEEP, [x5, 0] // Prefetch B |
| 109 | PRFM PLDL1KEEP, [x5, 64] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 110 | MOV v27.16b, v21.16b |
| 111 | PRFM PLDL1KEEP, [x5, 128] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 112 | PRFM PLDL1KEEP, [x5, 192] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 113 | |
| 114 | MOV x9, x3 // p = ks |
| 115 | |
| 116 | 1: |
| 117 | # Load next 4 A pointers |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 118 | LDP x13, x14, [x4], 16 |
| 119 | LDP x15, x8, [x4], 16 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 120 | |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 121 | |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 122 | CMP x13, x12 // if a0 == zero |
| 123 | ADD x13, x13, x11 // a0 += a_offset |
| 124 | CSEL x13, x12, x13, EQ // a0 = zero, else += a0 + a_offset |
| 125 | CMP x14, x12 // if a1 == zero |
| 126 | ADD x14, x14, x11 // a1 += a_offset |
| 127 | CSEL x14, x12, x14, EQ // a1 = zero, else += a1 + a_offset |
| 128 | CMP x15, x12 // if a2 == zero |
| 129 | ADD x15, x15, x11 // a2 += a_offset |
| 130 | CSEL x15, x12, x15, EQ // a2 = zero, else += a2 + a_offset |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 131 | CMP x8, x12 // if a3 == zero |
| 132 | ADD x8, x8, x11 // a3 += a_offset |
| 133 | CSEL x8, x12, x8, EQ // a3 = zero, else += a3 + a_offset |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 134 | |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 135 | # Is there at least 4 floats (16 bytes) for prologue + epilogue? |
| 136 | SUBS x0, x2, 16 // k = kc - 16 |
| 137 | B.LO 4f |
| 138 | |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 139 | # Prologue - First group loads, no FMA |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 140 | LDR d0, [x13], 8 // a0 |
| 141 | LDP q16, q17, [x5], 32 // b |
| 142 | LDR d1, [x15], 8 // a2 |
| 143 | LD1 {v0.d}[1], [x14], 8 // a1 |
| 144 | LD1 {v1.d}[1], [x8], 8 // a3 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 145 | SUBS x0, x0, 16 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 146 | LDR q18, [x5], 16 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 147 | LDR d19, [x5], 8 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 148 | LDR x19, [x5], 8 // ins is in BLOCK 0 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 149 | |
| 150 | # Is there at least 4 floats (16 bytes) for main loop? |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 151 | B.LO 3f |
| 152 | |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 153 | # Main loop - 4 floats of A (16 bytes) |
| 154 | # 32 FMA + 8 LD64 A + 8 LDR B |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 155 | 2: |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 156 | # First group of 16 FMA, Second group loads |
| 157 | // BLOCK 0 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 158 | LDR d3, [x13], 8 // a0 |
| 159 | INS v19.d[1], x19 // b from second group |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 160 | FMLA v20.4s, v16.4s, v0.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 161 | LDR x19, [x14], 8 // a1 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 162 | FMLA v22.4s, v16.4s, v0.s[2] |
| 163 | FMLA v24.4s, v16.4s, v1.s[0] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 164 | |
| 165 | // BLOCK 1 |
| 166 | LDR d12, [x5] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 167 | INS v3.d[1], x19 // a1 ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 168 | FMLA v26.4s, v16.4s, v1.s[2] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 169 | LDR x19, [x5, 8] // b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 170 | FMLA v21.4s, v17.4s, v0.s[0] |
| 171 | FMLA v23.4s, v17.4s, v0.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 172 | |
| 173 | // BLOCK 2 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 174 | LDR d4, [x15], 8 // a2 |
| 175 | INS v12.d[1], x19 // b ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 176 | FMLA v25.4s, v17.4s, v1.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 177 | LDR x19, [x8], 8 // a3 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 178 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 179 | FMLA v20.4s, v18.4s, v0.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 180 | |
| 181 | // BLOCK 3 |
| 182 | LDR d13, [x5, 16] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 183 | INS v4.d[1], x19 // a3 ins |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 184 | FMLA v22.4s, v18.4s, v0.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 185 | LDR x19, [x5, 24] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 186 | FMLA v24.4s, v18.4s, v1.s[1] |
| 187 | FMLA v26.4s, v18.4s, v1.s[3] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 188 | |
| 189 | // BLOCK 4 |
| 190 | LDR d14, [x5, 32] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 191 | INS v13.d[1], x19 // b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 192 | FMLA v21.4s, v19.4s, v0.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 193 | LDR x19, [x5, 40] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 194 | FMLA v23.4s, v19.4s, v0.s[3] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 195 | FMLA v25.4s, v19.4s, v1.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 196 | |
| 197 | // BLOCK 5 |
| 198 | // NOPs to ensure 4 cycle LDR lands on next LDR |
| 199 | LDR d15, [x5, 48] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 200 | INS v14.d[1], x19 // b from previous |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 201 | FMLA v27.4s, v19.4s, v1.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 202 | LDR x19, [x5, 56] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 203 | NOP |
| 204 | NOP |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 205 | NOP |
| 206 | NOP |
| 207 | |
| 208 | # Second group of 16 FMA, First group of loads |
| 209 | // BLOCK 0 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 210 | LDR d0, [x13], 8 // a0 |
| 211 | INS v15.d[1], x19 // b from previous |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 212 | FMLA v20.4s, v12.4s, v3.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 213 | LDR x19, [x14], 8 // a1 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 214 | FMLA v22.4s, v12.4s, v3.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 215 | FMLA v24.4s, v12.4s, v4.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 216 | PRFM PLDL1KEEP, [x13, 128] // Prefetch A0 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 217 | |
| 218 | // BLOCK 1 |
| 219 | LDR d16, [x5, 64] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 220 | INS v0.d[1], x19 // a1 ins |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 221 | FMLA v26.4s, v12.4s, v4.s[2] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 222 | LDR x19, [x5, 72] // b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 223 | FMLA v21.4s, v13.4s, v3.s[0] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 224 | FMLA v23.4s, v13.4s, v3.s[2] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 225 | PRFM PLDL1KEEP, [x14, 128] // Prefetch A1 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 226 | |
| 227 | // BLOCK 2 |
| 228 | LDR d1, [x15], 8 // a2 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 229 | INS v16.d[1], x19 // b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 230 | FMLA v25.4s, v13.4s, v4.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 231 | LDR x19, [x8], 8 // a3 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 232 | FMLA v27.4s, v13.4s, v4.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 233 | FMLA v20.4s, v14.4s, v3.s[1] |
| 234 | PRFM PLDL1KEEP, [x15, 128] // Prefetch A2 |
| 235 | |
| 236 | // BLOCK 3 |
| 237 | LDR d17, [x5, 80] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 238 | INS v1.d[1], x19 // a3 ins |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 239 | FMLA v22.4s, v14.4s, v3.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 240 | LDR x19, [x5, 88] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 241 | FMLA v24.4s, v14.4s, v4.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 242 | FMLA v26.4s, v14.4s, v4.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 243 | PRFM PLDL1KEEP, [x8, 128] // Prefetch A3 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 244 | |
| 245 | // BLOCK 4 |
| 246 | LDR d18, [x5, 96] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 247 | INS v17.d[1], x19 // b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 248 | FMLA v21.4s, v15.4s, v3.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 249 | LDR x19, [x5, 104] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 250 | FMLA v23.4s, v15.4s, v3.s[3] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 251 | FMLA v25.4s, v15.4s, v4.s[1] |
Frank Barchard | 534375d | 2020-01-15 19:22:41 -0800 | [diff] [blame] | 252 | PRFM PLDL1KEEP, [x5, 192] // Prefetch B |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 253 | |
| 254 | // BLOCK 5 |
| 255 | // NOTE that block needs to be 4 cycles for LDR not to stall |
| 256 | LDR d19, [x5, 112] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 257 | INS v18.d[1], x19 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 258 | FMLA v27.4s, v15.4s, v4.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 259 | LDR x19, [x5, 120] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 260 | SUBS x0, x0, 16 |
Frank Barchard | 534375d | 2020-01-15 19:22:41 -0800 | [diff] [blame] | 261 | PRFM PLDL1KEEP, [x5, 256] // Prefetch B |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 262 | ADD x5, x5, 128 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 263 | B.HS 2b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 264 | |
| 265 | # Epilogue - 4 floats of A (16 bytes) |
| 266 | # 32 FMA + 8 LD64 A + 8 LDR B |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 267 | 3: |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 268 | # First group of 16 FMA, Second group loads |
| 269 | // BLOCK 0 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 270 | LDR d3, [x13], 8 // a0 |
| 271 | INS v19.d[1], x19 // b from second group |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 272 | FMLA v20.4s, v16.4s, v0.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 273 | LDR x19, [x14], 8 // a1 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 274 | FMLA v22.4s, v16.4s, v0.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 275 | FMLA v24.4s, v16.4s, v1.s[0] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 276 | |
| 277 | // BLOCK 1 |
| 278 | LDR d12, [x5] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 279 | INS v3.d[1], x19 // a1 ins |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 280 | FMLA v26.4s, v16.4s, v1.s[2] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 281 | LDR x19, [x5, 8] // b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 282 | FMLA v21.4s, v17.4s, v0.s[0] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 283 | FMLA v23.4s, v17.4s, v0.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 284 | |
| 285 | // BLOCK 2 |
| 286 | LDR d4, [x15], 8 // a2 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 287 | INS v12.d[1], x19 // b ins |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 288 | FMLA v25.4s, v17.4s, v1.s[0] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 289 | LDR x19, [x8], 8 // a3 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 290 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 291 | FMLA v20.4s, v18.4s, v0.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 292 | |
| 293 | // BLOCK 3 |
| 294 | LDR d13, [x5, 16] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 295 | INS v4.d[1], x19 // a3 ins |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 296 | FMLA v22.4s, v18.4s, v0.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 297 | LDR x19, [x5, 24] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 298 | FMLA v24.4s, v18.4s, v1.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 299 | FMLA v26.4s, v18.4s, v1.s[3] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 300 | |
| 301 | // BLOCK 4 |
| 302 | LDR d14, [x5, 32] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 303 | INS v13.d[1], x19 // b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 304 | FMLA v21.4s, v19.4s, v0.s[1] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 305 | LDR x19, [x5, 40] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 306 | FMLA v23.4s, v19.4s, v0.s[3] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 307 | FMLA v25.4s, v19.4s, v1.s[1] |
| 308 | |
| 309 | // BLOCK 5 |
| 310 | // NOPs to ensure 4 cycle LDR lands on next LDR |
| 311 | LDR d15, [x5, 48] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 312 | INS v14.d[1], x19 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 313 | FMLA v27.4s, v19.4s, v1.s[3] |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 314 | LDR x19, [x5, 56] |
| 315 | NOP // fma |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 316 | NOP |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 317 | NOP // fma |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 318 | NOP |
| 319 | |
| 320 | # Second group of 16 FMA, no loads |
| 321 | // BLOCK 0 |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 322 | INS v15.d[1], x19 // b from previous |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 323 | FMLA v20.4s, v12.4s, v3.s[0] |
| 324 | FMLA v22.4s, v12.4s, v3.s[2] |
| 325 | FMLA v24.4s, v12.4s, v4.s[0] |
| 326 | |
| 327 | // BLOCK 1 |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 328 | FMLA v26.4s, v12.4s, v4.s[2] |
| 329 | FMLA v21.4s, v13.4s, v3.s[0] |
| 330 | FMLA v23.4s, v13.4s, v3.s[2] |
| 331 | |
| 332 | // BLOCK 2 |
| 333 | FMLA v25.4s, v13.4s, v4.s[0] |
| 334 | FMLA v27.4s, v13.4s, v4.s[2] |
| 335 | FMLA v20.4s, v14.4s, v3.s[1] |
| 336 | |
| 337 | // BLOCK 3 |
| 338 | FMLA v22.4s, v14.4s, v3.s[3] |
| 339 | FMLA v24.4s, v14.4s, v4.s[1] |
| 340 | FMLA v26.4s, v14.4s, v4.s[3] |
| 341 | |
| 342 | // BLOCK 4 |
| 343 | FMLA v21.4s, v15.4s, v3.s[1] |
| 344 | FMLA v23.4s, v15.4s, v3.s[3] |
| 345 | FMLA v25.4s, v15.4s, v4.s[1] |
| 346 | ADD x5, x5, 64 |
| 347 | |
| 348 | // BLOCK 5 |
| 349 | FMLA v27.4s, v15.4s, v4.s[3] |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 350 | |
| 351 | 4: |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 352 | # Is there a remainder?- 2 floats of A (8 bytes) |
| 353 | TBNZ x0, 3, 6f |
| 354 | # Is there a remainder?- 1 floats of A (4 bytes) |
| 355 | TBNZ x0, 2, 7f |
| 356 | 5: |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 357 | # ks loop |
| 358 | SUBS x9, x9, 32 // ks -= MR * sizeof(void*) |
| 359 | B.NE 1b |
| 360 | |
| 361 | # Clamp |
| 362 | FMIN v20.4s, v20.4s, v6.4s |
| 363 | FMIN v21.4s, v21.4s, v6.4s |
| 364 | FMIN v22.4s, v22.4s, v6.4s |
| 365 | FMIN v23.4s, v23.4s, v6.4s |
| 366 | FMIN v24.4s, v24.4s, v6.4s |
| 367 | FMIN v25.4s, v25.4s, v6.4s |
| 368 | FMIN v26.4s, v26.4s, v6.4s |
| 369 | FMIN v27.4s, v27.4s, v6.4s |
| 370 | FMAX v20.4s, v20.4s, v7.4s |
| 371 | FMAX v21.4s, v21.4s, v7.4s |
| 372 | FMAX v22.4s, v22.4s, v7.4s |
| 373 | FMAX v23.4s, v23.4s, v7.4s |
| 374 | FMAX v24.4s, v24.4s, v7.4s |
| 375 | FMAX v25.4s, v25.4s, v7.4s |
| 376 | FMAX v26.4s, v26.4s, v7.4s |
| 377 | FMAX v27.4s, v27.4s, v7.4s |
| 378 | |
| 379 | # Store full 4 x 8 |
Frank Barchard | 6383f49 | 2019-12-04 22:33:49 -0800 | [diff] [blame] | 380 | SUBS x1, x1, 8 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 381 | B.LO 8f |
| 382 | |
| 383 | STP q26, q27, [x7] |
| 384 | ADD x7, x7, x10 |
| 385 | STP q24, q25, [x17] |
| 386 | ADD x17, x17, x10 |
| 387 | STP q22, q23, [x16] |
| 388 | ADD x16, x16, x10 |
| 389 | STP q20, q21, [x6] |
| 390 | ADD x6, x6, x10 |
| 391 | |
| 392 | SUB x4, x4, x3 // a -= ks |
| 393 | |
| 394 | # nc loop |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 395 | B.HI 0b |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 396 | |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 397 | // Restore x19, d12-d15 from stack |
| 398 | LDR x19, [sp, 32] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 399 | LDP d14, d15, [sp, 16] |
| 400 | LDP d12, d13, [sp], 48 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 401 | RET |
| 402 | |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 403 | # Remainder - 2 floats of A (8 bytes) |
| 404 | # 16 FMA + 4 LD64 A + 2 LDP B |
| 405 | 6: |
| 406 | LDR d0, [x13], 8 |
| 407 | LDP q16, q17, [x5], 32 |
| 408 | LD1 {v0.d}[1], [x14], 8 |
| 409 | LDR d1, [x15], 8 |
| 410 | LD1 {v1.d}[1], [x8], 8 |
| 411 | LDP q18, q19, [x5], 32 |
| 412 | FMLA v20.4s, v16.4s, v0.s[0] |
| 413 | FMLA v22.4s, v16.4s, v0.s[2] |
| 414 | FMLA v24.4s, v16.4s, v1.s[0] |
| 415 | FMLA v26.4s, v16.4s, v1.s[2] |
| 416 | FMLA v21.4s, v17.4s, v0.s[0] |
| 417 | FMLA v23.4s, v17.4s, v0.s[2] |
| 418 | FMLA v25.4s, v17.4s, v1.s[0] |
| 419 | FMLA v27.4s, v17.4s, v1.s[2] |
| 420 | |
| 421 | FMLA v20.4s, v18.4s, v0.s[1] |
| 422 | FMLA v22.4s, v18.4s, v0.s[3] |
| 423 | FMLA v24.4s, v18.4s, v1.s[1] |
| 424 | FMLA v26.4s, v18.4s, v1.s[3] |
| 425 | FMLA v21.4s, v19.4s, v0.s[1] |
| 426 | FMLA v23.4s, v19.4s, v0.s[3] |
| 427 | FMLA v25.4s, v19.4s, v1.s[1] |
| 428 | FMLA v27.4s, v19.4s, v1.s[3] |
| 429 | |
| 430 | # Is there a remainder?- 1 floats of A (4 bytes) |
| 431 | TBZ x0, 2, 5b |
| 432 | |
| 433 | 7: |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 434 | # Remainder- 1 floats of A (4 bytes) |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 435 | LDR s0, [x13], 4 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 436 | LDP q16, q17, [x5], 32 |
Frank Barchard | ae777b4 | 2019-10-25 18:31:58 -0700 | [diff] [blame] | 437 | LD1 {v0.s}[2], [x14], 4 |
| 438 | LDR s1, [x15], 4 |
| 439 | LD1 {v1.s}[2], [x8], 4 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 440 | |
| 441 | FMLA v20.4s, v16.4s, v0.s[0] |
| 442 | FMLA v22.4s, v16.4s, v0.s[2] |
| 443 | FMLA v24.4s, v16.4s, v1.s[0] |
| 444 | FMLA v26.4s, v16.4s, v1.s[2] |
| 445 | FMLA v21.4s, v17.4s, v0.s[0] |
| 446 | FMLA v23.4s, v17.4s, v0.s[2] |
| 447 | FMLA v25.4s, v17.4s, v1.s[0] |
| 448 | FMLA v27.4s, v17.4s, v1.s[2] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 449 | B 5b |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 450 | |
| 451 | # Store odd width |
| 452 | 8: |
| 453 | TBZ x1, 2, 9f |
| 454 | STR q26, [x7], 16 |
| 455 | MOV v26.16b, v27.16b |
| 456 | STR q24, [x17], 16 |
| 457 | MOV v24.16b, v25.16b |
| 458 | STR q22, [x16], 16 |
| 459 | MOV v22.16b, v23.16b |
| 460 | STR q20, [x6], 16 |
| 461 | MOV v20.16b, v21.16b |
| 462 | 9: |
| 463 | TBZ x1, 1, 10f |
| 464 | STR d26, [x7], 8 |
| 465 | DUP d26, v26.d[1] |
| 466 | STR d24, [x17], 8 |
| 467 | DUP d24, v24.d[1] |
| 468 | STR d22, [x16], 8 |
| 469 | DUP d22, v22.d[1] |
| 470 | STR d20, [x6], 8 |
| 471 | DUP d20, v20.d[1] |
| 472 | |
| 473 | 10: |
| 474 | TBZ x1, 0, 11f |
| 475 | STR s26, [x7] |
| 476 | STR s24, [x17] |
| 477 | STR s22, [x16] |
| 478 | STR s20, [x6] |
| 479 | 11: |
Frank Barchard | 7693acf | 2020-01-13 17:44:16 -0800 | [diff] [blame] | 480 | // Restore x19, d12-d15 from stack |
| 481 | LDR x19, [sp, 32] |
Frank Barchard | 7c8e0c7 | 2019-11-17 00:02:36 -0800 | [diff] [blame] | 482 | LDP d14, d15, [sp, 16] |
| 483 | LDP d12, d13, [sp], 48 |
Frank Barchard | 46fb807 | 2019-10-25 12:54:22 -0700 | [diff] [blame] | 484 | RET |
| 485 | |
| 486 | END_FUNCTION xnn_f32_igemm_ukernel_4x8__aarch64_neonfma_cortex_a53 |
| 487 | |
| 488 | #ifdef __ELF__ |
| 489 | .section ".note.GNU-stack","",%progbits |
| 490 | #endif |