llvm/test/MC/AArch64/SME2/fmaxnm.s

   1 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
   2 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
   3 // RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 \
   4 // RUN:        | FileCheck %s --check-prefix=CHECK-ERROR
   5 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
   6 // RUN:        | llvm-objdump -d --mattr=+sme2 - | FileCheck %s --check-prefix=CHECK-INST
   7 // RUN: llvm-mc -triple=aarch64 -filetype=obj -mattr=+sme2 < %s \
   8 // RUN:        | llvm-objdump -d --mattr=-sme2 - | FileCheck %s --check-prefix=CHECK-UNKNOWN
   9 // RUN: llvm-mc -triple=aarch64 -show-encoding -mattr=+sme2 < %s \
  10 // RUN:        | sed '/.text/d' | sed 's/.*encoding: //g' \
  11 // RUN:        | llvm-mc -triple=aarch64 -mattr=+sme2 -disassemble -show-encoding \
  12 // RUN:        | FileCheck %s --check-prefixes=CHECK-ENCODING,CHECK-INST
  13
  14
  15 fmaxnm  {z0.d, z1.d}, {z0.d, z1.d}, z0.d  // 11000001-11100000-10100001-00100000
  16 // CHECK-INST: fmaxnm  { z0.d, z1.d }, { z0.d, z1.d }, z0.d
  17 // CHECK-ENCODING: [0x20,0xa1,0xe0,0xc1]
  18 // CHECK-ERROR: instruction requires: sme2
  19 // CHECK-UNKNOWN: c1e0a120 <unknown>
  20
  21 fmaxnm  {z20.d, z21.d}, {z20.d, z21.d}, z5.d  // 11000001-11100101-10100001-00110100
  22 // CHECK-INST: fmaxnm  { z20.d, z21.d }, { z20.d, z21.d }, z5.d
  23 // CHECK-ENCODING: [0x34,0xa1,0xe5,0xc1]
  24 // CHECK-ERROR: instruction requires: sme2
  25 // CHECK-UNKNOWN: c1e5a134 <unknown>
  26
  27 fmaxnm  {z22.d, z23.d}, {z22.d, z23.d}, z8.d  // 11000001-11101000-10100001-00110110
  28 // CHECK-INST: fmaxnm  { z22.d, z23.d }, { z22.d, z23.d }, z8.d
  29 // CHECK-ENCODING: [0x36,0xa1,0xe8,0xc1]
  30 // CHECK-ERROR: instruction requires: sme2
  31 // CHECK-UNKNOWN: c1e8a136 <unknown>
  32
  33 fmaxnm  {z30.d, z31.d}, {z30.d, z31.d}, z15.d  // 11000001-11101111-10100001-00111110
  34 // CHECK-INST: fmaxnm  { z30.d, z31.d }, { z30.d, z31.d }, z15.d
  35 // CHECK-ENCODING: [0x3e,0xa1,0xef,0xc1]
  36 // CHECK-ERROR: instruction requires: sme2
  37 // CHECK-UNKNOWN: c1efa13e <unknown>
  38
  39
  40 fmaxnm  {z0.d, z1.d}, {z0.d, z1.d}, {z0.d, z1.d}  // 11000001-11100000-10110001-00100000
  41 // CHECK-INST: fmaxnm  { z0.d, z1.d }, { z0.d, z1.d }, { z0.d, z1.d }
  42 // CHECK-ENCODING: [0x20,0xb1,0xe0,0xc1]
  43 // CHECK-ERROR: instruction requires: sme2
  44 // CHECK-UNKNOWN: c1e0b120 <unknown>
  45
  46 fmaxnm  {z20.d, z21.d}, {z20.d, z21.d}, {z20.d, z21.d}  // 11000001-11110100-10110001-00110100
  47 // CHECK-INST: fmaxnm  { z20.d, z21.d }, { z20.d, z21.d }, { z20.d, z21.d }
  48 // CHECK-ENCODING: [0x34,0xb1,0xf4,0xc1]
  49 // CHECK-ERROR: instruction requires: sme2
  50 // CHECK-UNKNOWN: c1f4b134 <unknown>
  51
  52 fmaxnm  {z22.d, z23.d}, {z22.d, z23.d}, {z8.d, z9.d}  // 11000001-11101000-10110001-00110110
  53 // CHECK-INST: fmaxnm  { z22.d, z23.d }, { z22.d, z23.d }, { z8.d, z9.d }
  54 // CHECK-ENCODING: [0x36,0xb1,0xe8,0xc1]
  55 // CHECK-ERROR: instruction requires: sme2
  56 // CHECK-UNKNOWN: c1e8b136 <unknown>
  57
  58 fmaxnm  {z30.d, z31.d}, {z30.d, z31.d}, {z30.d, z31.d}  // 11000001-11111110-10110001-00111110
  59 // CHECK-INST: fmaxnm  { z30.d, z31.d }, { z30.d, z31.d }, { z30.d, z31.d }
  60 // CHECK-ENCODING: [0x3e,0xb1,0xfe,0xc1]
  61 // CHECK-ERROR: instruction requires: sme2
  62 // CHECK-UNKNOWN: c1feb13e <unknown>
  63
  64
  65 fmaxnm  {z0.h, z1.h}, {z0.h, z1.h}, z0.h  // 11000001-01100000-10100001-00100000
  66 // CHECK-INST: fmaxnm  { z0.h, z1.h }, { z0.h, z1.h }, z0.h
  67 // CHECK-ENCODING: [0x20,0xa1,0x60,0xc1]
  68 // CHECK-ERROR: instruction requires: sme2
  69 // CHECK-UNKNOWN: c160a120 <unknown>
  70
  71 fmaxnm  {z20.h, z21.h}, {z20.h, z21.h}, z5.h  // 11000001-01100101-10100001-00110100
  72 // CHECK-INST: fmaxnm  { z20.h, z21.h }, { z20.h, z21.h }, z5.h
  73 // CHECK-ENCODING: [0x34,0xa1,0x65,0xc1]
  74 // CHECK-ERROR: instruction requires: sme2
  75 // CHECK-UNKNOWN: c165a134 <unknown>
  76
  77 fmaxnm  {z22.h, z23.h}, {z22.h, z23.h}, z8.h  // 11000001-01101000-10100001-00110110
  78 // CHECK-INST: fmaxnm  { z22.h, z23.h }, { z22.h, z23.h }, z8.h
  79 // CHECK-ENCODING: [0x36,0xa1,0x68,0xc1]
  80 // CHECK-ERROR: instruction requires: sme2
  81 // CHECK-UNKNOWN: c168a136 <unknown>
  82
  83 fmaxnm  {z30.h, z31.h}, {z30.h, z31.h}, z15.h  // 11000001-01101111-10100001-00111110
  84 // CHECK-INST: fmaxnm  { z30.h, z31.h }, { z30.h, z31.h }, z15.h
  85 // CHECK-ENCODING: [0x3e,0xa1,0x6f,0xc1]
  86 // CHECK-ERROR: instruction requires: sme2
  87 // CHECK-UNKNOWN: c16fa13e <unknown>
  88
  89
  90 fmaxnm  {z0.h, z1.h}, {z0.h, z1.h}, {z0.h, z1.h}  // 11000001-01100000-10110001-00100000
  91 // CHECK-INST: fmaxnm  { z0.h, z1.h }, { z0.h, z1.h }, { z0.h, z1.h }
  92 // CHECK-ENCODING: [0x20,0xb1,0x60,0xc1]
  93 // CHECK-ERROR: instruction requires: sme2
  94 // CHECK-UNKNOWN: c160b120 <unknown>
  95
  96 fmaxnm  {z20.h, z21.h}, {z20.h, z21.h}, {z20.h, z21.h}  // 11000001-01110100-10110001-00110100
  97 // CHECK-INST: fmaxnm  { z20.h, z21.h }, { z20.h, z21.h }, { z20.h, z21.h }
  98 // CHECK-ENCODING: [0x34,0xb1,0x74,0xc1]
  99 // CHECK-ERROR: instruction requires: sme2
 100 // CHECK-UNKNOWN: c174b134 <unknown>
 101
 102 fmaxnm  {z22.h, z23.h}, {z22.h, z23.h}, {z8.h, z9.h}  // 11000001-01101000-10110001-00110110
 103 // CHECK-INST: fmaxnm  { z22.h, z23.h }, { z22.h, z23.h }, { z8.h, z9.h }
 104 // CHECK-ENCODING: [0x36,0xb1,0x68,0xc1]
 105 // CHECK-ERROR: instruction requires: sme2
 106 // CHECK-UNKNOWN: c168b136 <unknown>
 107
 108 fmaxnm  {z30.h, z31.h}, {z30.h, z31.h}, {z30.h, z31.h}  // 11000001-01111110-10110001-00111110
 109 // CHECK-INST: fmaxnm  { z30.h, z31.h }, { z30.h, z31.h }, { z30.h, z31.h }
 110 // CHECK-ENCODING: [0x3e,0xb1,0x7e,0xc1]
 111 // CHECK-ERROR: instruction requires: sme2
 112 // CHECK-UNKNOWN: c17eb13e <unknown>
 113
 114
 115 fmaxnm  {z0.s, z1.s}, {z0.s, z1.s}, z0.s  // 11000001-10100000-10100001-00100000
 116 // CHECK-INST: fmaxnm  { z0.s, z1.s }, { z0.s, z1.s }, z0.s
 117 // CHECK-ENCODING: [0x20,0xa1,0xa0,0xc1]
 118 // CHECK-ERROR: instruction requires: sme2
 119 // CHECK-UNKNOWN: c1a0a120 <unknown>
 120
 121 fmaxnm  {z20.s, z21.s}, {z20.s, z21.s}, z5.s  // 11000001-10100101-10100001-00110100
 122 // CHECK-INST: fmaxnm  { z20.s, z21.s }, { z20.s, z21.s }, z5.s
 123 // CHECK-ENCODING: [0x34,0xa1,0xa5,0xc1]
 124 // CHECK-ERROR: instruction requires: sme2
 125 // CHECK-UNKNOWN: c1a5a134 <unknown>
 126
 127 fmaxnm  {z22.s, z23.s}, {z22.s, z23.s}, z8.s  // 11000001-10101000-10100001-00110110
 128 // CHECK-INST: fmaxnm  { z22.s, z23.s }, { z22.s, z23.s }, z8.s
 129 // CHECK-ENCODING: [0x36,0xa1,0xa8,0xc1]
 130 // CHECK-ERROR: instruction requires: sme2
 131 // CHECK-UNKNOWN: c1a8a136 <unknown>
 132
 133 fmaxnm  {z30.s, z31.s}, {z30.s, z31.s}, z15.s  // 11000001-10101111-10100001-00111110
 134 // CHECK-INST: fmaxnm  { z30.s, z31.s }, { z30.s, z31.s }, z15.s
 135 // CHECK-ENCODING: [0x3e,0xa1,0xaf,0xc1]
 136 // CHECK-ERROR: instruction requires: sme2
 137 // CHECK-UNKNOWN: c1afa13e <unknown>
 138
 139
 140 fmaxnm  {z0.s, z1.s}, {z0.s, z1.s}, {z0.s, z1.s}  // 11000001-10100000-10110001-00100000
 141 // CHECK-INST: fmaxnm  { z0.s, z1.s }, { z0.s, z1.s }, { z0.s, z1.s }
 142 // CHECK-ENCODING: [0x20,0xb1,0xa0,0xc1]
 143 // CHECK-ERROR: instruction requires: sme2
 144 // CHECK-UNKNOWN: c1a0b120 <unknown>
 145
 146 fmaxnm  {z20.s, z21.s}, {z20.s, z21.s}, {z20.s, z21.s}  // 11000001-10110100-10110001-00110100
 147 // CHECK-INST: fmaxnm  { z20.s, z21.s }, { z20.s, z21.s }, { z20.s, z21.s }
 148 // CHECK-ENCODING: [0x34,0xb1,0xb4,0xc1]
 149 // CHECK-ERROR: instruction requires: sme2
 150 // CHECK-UNKNOWN: c1b4b134 <unknown>
 151
 152 fmaxnm  {z22.s, z23.s}, {z22.s, z23.s}, {z8.s, z9.s}  // 11000001-10101000-10110001-00110110
 153 // CHECK-INST: fmaxnm  { z22.s, z23.s }, { z22.s, z23.s }, { z8.s, z9.s }
 154 // CHECK-ENCODING: [0x36,0xb1,0xa8,0xc1]
 155 // CHECK-ERROR: instruction requires: sme2
 156 // CHECK-UNKNOWN: c1a8b136 <unknown>
 157
 158 fmaxnm  {z30.s, z31.s}, {z30.s, z31.s}, {z30.s, z31.s}  // 11000001-10111110-10110001-00111110
 159 // CHECK-INST: fmaxnm  { z30.s, z31.s }, { z30.s, z31.s }, { z30.s, z31.s }
 160 // CHECK-ENCODING: [0x3e,0xb1,0xbe,0xc1]
 161 // CHECK-ERROR: instruction requires: sme2
 162 // CHECK-UNKNOWN: c1beb13e <unknown>
 163
 164
 165 fmaxnm  {z0.d - z3.d}, {z0.d - z3.d}, z0.d  // 11000001-11100000-10101001-00100000
 166 // CHECK-INST: fmaxnm  { z0.d - z3.d }, { z0.d - z3.d }, z0.d
 167 // CHECK-ENCODING: [0x20,0xa9,0xe0,0xc1]
 168 // CHECK-ERROR: instruction requires: sme2
 169 // CHECK-UNKNOWN: c1e0a920 <unknown>
 170
 171 fmaxnm  {z20.d - z23.d}, {z20.d - z23.d}, z5.d  // 11000001-11100101-10101001-00110100
 172 // CHECK-INST: fmaxnm  { z20.d - z23.d }, { z20.d - z23.d }, z5.d
 173 // CHECK-ENCODING: [0x34,0xa9,0xe5,0xc1]
 174 // CHECK-ERROR: instruction requires: sme2
 175 // CHECK-UNKNOWN: c1e5a934 <unknown>
 176
 177 fmaxnm  {z20.d - z23.d}, {z20.d - z23.d}, z8.d  // 11000001-11101000-10101001-00110100
 178 // CHECK-INST: fmaxnm  { z20.d - z23.d }, { z20.d - z23.d }, z8.d
 179 // CHECK-ENCODING: [0x34,0xa9,0xe8,0xc1]
 180 // CHECK-ERROR: instruction requires: sme2
 181 // CHECK-UNKNOWN: c1e8a934 <unknown>
 182
 183 fmaxnm  {z28.d - z31.d}, {z28.d - z31.d}, z15.d  // 11000001-11101111-10101001-00111100
 184 // CHECK-INST: fmaxnm  { z28.d - z31.d }, { z28.d - z31.d }, z15.d
 185 // CHECK-ENCODING: [0x3c,0xa9,0xef,0xc1]
 186 // CHECK-ERROR: instruction requires: sme2
 187 // CHECK-UNKNOWN: c1efa93c <unknown>
 188
 189
 190 fmaxnm  {z0.d - z3.d}, {z0.d - z3.d}, {z0.d - z3.d}  // 11000001-11100000-10111001-00100000
 191 // CHECK-INST: fmaxnm  { z0.d - z3.d }, { z0.d - z3.d }, { z0.d - z3.d }
 192 // CHECK-ENCODING: [0x20,0xb9,0xe0,0xc1]
 193 // CHECK-ERROR: instruction requires: sme2
 194 // CHECK-UNKNOWN: c1e0b920 <unknown>
 195
 196 fmaxnm  {z20.d - z23.d}, {z20.d - z23.d}, {z20.d - z23.d}  // 11000001-11110100-10111001-00110100
 197 // CHECK-INST: fmaxnm  { z20.d - z23.d }, { z20.d - z23.d }, { z20.d - z23.d }
 198 // CHECK-ENCODING: [0x34,0xb9,0xf4,0xc1]
 199 // CHECK-ERROR: instruction requires: sme2
 200 // CHECK-UNKNOWN: c1f4b934 <unknown>
 201
 202 fmaxnm  {z20.d - z23.d}, {z20.d - z23.d}, {z8.d - z11.d}  // 11000001-11101000-10111001-00110100
 203 // CHECK-INST: fmaxnm  { z20.d - z23.d }, { z20.d - z23.d }, { z8.d - z11.d }
 204 // CHECK-ENCODING: [0x34,0xb9,0xe8,0xc1]
 205 // CHECK-ERROR: instruction requires: sme2
 206 // CHECK-UNKNOWN: c1e8b934 <unknown>
 207
 208 fmaxnm  {z28.d - z31.d}, {z28.d - z31.d}, {z28.d - z31.d}  // 11000001-11111100-10111001-00111100
 209 // CHECK-INST: fmaxnm  { z28.d - z31.d }, { z28.d - z31.d }, { z28.d - z31.d }
 210 // CHECK-ENCODING: [0x3c,0xb9,0xfc,0xc1]
 211 // CHECK-ERROR: instruction requires: sme2
 212 // CHECK-UNKNOWN: c1fcb93c <unknown>
 213
 214
 215 fmaxnm  {z0.h - z3.h}, {z0.h - z3.h}, z0.h  // 11000001-01100000-10101001-00100000
 216 // CHECK-INST: fmaxnm  { z0.h - z3.h }, { z0.h - z3.h }, z0.h
 217 // CHECK-ENCODING: [0x20,0xa9,0x60,0xc1]
 218 // CHECK-ERROR: instruction requires: sme2
 219 // CHECK-UNKNOWN: c160a920 <unknown>
 220
 221 fmaxnm  {z20.h - z23.h}, {z20.h - z23.h}, z5.h  // 11000001-01100101-10101001-00110100
 222 // CHECK-INST: fmaxnm  { z20.h - z23.h }, { z20.h - z23.h }, z5.h
 223 // CHECK-ENCODING: [0x34,0xa9,0x65,0xc1]
 224 // CHECK-ERROR: instruction requires: sme2
 225 // CHECK-UNKNOWN: c165a934 <unknown>
 226
 227 fmaxnm  {z20.h - z23.h}, {z20.h - z23.h}, z8.h  // 11000001-01101000-10101001-00110100
 228 // CHECK-INST: fmaxnm  { z20.h - z23.h }, { z20.h - z23.h }, z8.h
 229 // CHECK-ENCODING: [0x34,0xa9,0x68,0xc1]
 230 // CHECK-ERROR: instruction requires: sme2
 231 // CHECK-UNKNOWN: c168a934 <unknown>
 232
 233 fmaxnm  {z28.h - z31.h}, {z28.h - z31.h}, z15.h  // 11000001-01101111-10101001-00111100
 234 // CHECK-INST: fmaxnm  { z28.h - z31.h }, { z28.h - z31.h }, z15.h
 235 // CHECK-ENCODING: [0x3c,0xa9,0x6f,0xc1]
 236 // CHECK-ERROR: instruction requires: sme2
 237 // CHECK-UNKNOWN: c16fa93c <unknown>
 238
 239
 240 fmaxnm  {z0.h - z3.h}, {z0.h - z3.h}, {z0.h - z3.h}  // 11000001-01100000-10111001-00100000
 241 // CHECK-INST: fmaxnm  { z0.h - z3.h }, { z0.h - z3.h }, { z0.h - z3.h }
 242 // CHECK-ENCODING: [0x20,0xb9,0x60,0xc1]
 243 // CHECK-ERROR: instruction requires: sme2
 244 // CHECK-UNKNOWN: c160b920 <unknown>
 245
 246 fmaxnm  {z20.h - z23.h}, {z20.h - z23.h}, {z20.h - z23.h}  // 11000001-01110100-10111001-00110100
 247 // CHECK-INST: fmaxnm  { z20.h - z23.h }, { z20.h - z23.h }, { z20.h - z23.h }
 248 // CHECK-ENCODING: [0x34,0xb9,0x74,0xc1]
 249 // CHECK-ERROR: instruction requires: sme2
 250 // CHECK-UNKNOWN: c174b934 <unknown>
 251
 252 fmaxnm  {z20.h - z23.h}, {z20.h - z23.h}, {z8.h - z11.h}  // 11000001-01101000-10111001-00110100
 253 // CHECK-INST: fmaxnm  { z20.h - z23.h }, { z20.h - z23.h }, { z8.h - z11.h }
 254 // CHECK-ENCODING: [0x34,0xb9,0x68,0xc1]
 255 // CHECK-ERROR: instruction requires: sme2
 256 // CHECK-UNKNOWN: c168b934 <unknown>
 257
 258 fmaxnm  {z28.h - z31.h}, {z28.h - z31.h}, {z28.h - z31.h}  // 11000001-01111100-10111001-00111100
 259 // CHECK-INST: fmaxnm  { z28.h - z31.h }, { z28.h - z31.h }, { z28.h - z31.h }
 260 // CHECK-ENCODING: [0x3c,0xb9,0x7c,0xc1]
 261 // CHECK-ERROR: instruction requires: sme2
 262 // CHECK-UNKNOWN: c17cb93c <unknown>
 263
 264
 265 fmaxnm  {z0.s - z3.s}, {z0.s - z3.s}, z0.s  // 11000001-10100000-10101001-00100000
 266 // CHECK-INST: fmaxnm  { z0.s - z3.s }, { z0.s - z3.s }, z0.s
 267 // CHECK-ENCODING: [0x20,0xa9,0xa0,0xc1]
 268 // CHECK-ERROR: instruction requires: sme2
 269 // CHECK-UNKNOWN: c1a0a920 <unknown>
 270
 271 fmaxnm  {z20.s - z23.s}, {z20.s - z23.s}, z5.s  // 11000001-10100101-10101001-00110100
 272 // CHECK-INST: fmaxnm  { z20.s - z23.s }, { z20.s - z23.s }, z5.s
 273 // CHECK-ENCODING: [0x34,0xa9,0xa5,0xc1]
 274 // CHECK-ERROR: instruction requires: sme2
 275 // CHECK-UNKNOWN: c1a5a934 <unknown>
 276
 277 fmaxnm  {z20.s - z23.s}, {z20.s - z23.s}, z8.s  // 11000001-10101000-10101001-00110100
 278 // CHECK-INST: fmaxnm  { z20.s - z23.s }, { z20.s - z23.s }, z8.s
 279 // CHECK-ENCODING: [0x34,0xa9,0xa8,0xc1]
 280 // CHECK-ERROR: instruction requires: sme2
 281 // CHECK-UNKNOWN: c1a8a934 <unknown>
 282
 283 fmaxnm  {z28.s - z31.s}, {z28.s - z31.s}, z15.s  // 11000001-10101111-10101001-00111100
 284 // CHECK-INST: fmaxnm  { z28.s - z31.s }, { z28.s - z31.s }, z15.s
 285 // CHECK-ENCODING: [0x3c,0xa9,0xaf,0xc1]
 286 // CHECK-ERROR: instruction requires: sme2
 287 // CHECK-UNKNOWN: c1afa93c <unknown>
 288
 289
 290 fmaxnm  {z0.s - z3.s}, {z0.s - z3.s}, {z0.s - z3.s}  // 11000001-10100000-10111001-00100000
 291 // CHECK-INST: fmaxnm  { z0.s - z3.s }, { z0.s - z3.s }, { z0.s - z3.s }
 292 // CHECK-ENCODING: [0x20,0xb9,0xa0,0xc1]
 293 // CHECK-ERROR: instruction requires: sme2
 294 // CHECK-UNKNOWN: c1a0b920 <unknown>
 295
 296 fmaxnm  {z20.s - z23.s}, {z20.s - z23.s}, {z20.s - z23.s}  // 11000001-10110100-10111001-00110100
 297 // CHECK-INST: fmaxnm  { z20.s - z23.s }, { z20.s - z23.s }, { z20.s - z23.s }
 298 // CHECK-ENCODING: [0x34,0xb9,0xb4,0xc1]
 299 // CHECK-ERROR: instruction requires: sme2
 300 // CHECK-UNKNOWN: c1b4b934 <unknown>
 301
 302 fmaxnm  {z20.s - z23.s}, {z20.s - z23.s}, {z8.s - z11.s}  // 11000001-10101000-10111001-00110100
 303 // CHECK-INST: fmaxnm  { z20.s - z23.s }, { z20.s - z23.s }, { z8.s - z11.s }
 304 // CHECK-ENCODING: [0x34,0xb9,0xa8,0xc1]
 305 // CHECK-ERROR: instruction requires: sme2
 306 // CHECK-UNKNOWN: c1a8b934 <unknown>
 307
 308 fmaxnm  {z28.s - z31.s}, {z28.s - z31.s}, {z28.s - z31.s}  // 11000001-10111100-10111001-00111100
 309 // CHECK-INST: fmaxnm  { z28.s - z31.s }, { z28.s - z31.s }, { z28.s - z31.s }
 310 // CHECK-ENCODING: [0x3c,0xb9,0xbc,0xc1]
 311 // CHECK-ERROR: instruction requires: sme2
 312 // CHECK-UNKNOWN: c1bcb93c <unknown>
 313