test/MC/AArch64/neon-3vdiff.s

   1 // RUN: llvm-mc -triple=aarch64-none-linux-gnu -mattr=+crypto -mattr=+neon -show-encoding < %s | FileCheck %s
   2
   3 // Check that the assembler can handle the documented syntax for AArch64
   4
   5 //------------------------------------------------------------------------------
   6 // Instructions with 3 different vector data types
   7 //------------------------------------------------------------------------------
   8
   9 //------------------------------------------------------------------------------
  10 // Long
  11 //------------------------------------------------------------------------------
  12
  13 //------------------------------------------------------------------------------
  14 // Long - Variant 1
  15 //------------------------------------------------------------------------------
  16
  17         saddl v0.8h, v1.8b, v2.8b
  18         saddl v0.4s, v1.4h, v2.4h
  19         saddl v0.2d, v1.2s, v2.2s
  20
  21 // CHECK: saddl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x00,0x22,0x0e]
  22 // CHECK: saddl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x00,0x62,0x0e]
  23 // CHECK: saddl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x00,0xa2,0x0e]
  24
  25         saddl2 v0.4s, v1.8h, v2.8h
  26         saddl2 v0.8h, v1.16b, v2.16b
  27         saddl2 v0.2d, v1.4s, v2.4s
  28
  29 // CHECK: saddl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x00,0x62,0x4e]
  30 // CHECK: saddl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x00,0x22,0x4e]
  31 // CHECK: saddl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x00,0xa2,0x4e]
  32
  33         uaddl v0.8h, v1.8b, v2.8b
  34         uaddl v0.4s, v1.4h, v2.4h
  35         uaddl v0.2d, v1.2s, v2.2s
  36
  37 // CHECK: uaddl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x00,0x22,0x2e]
  38 // CHECK: uaddl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x00,0x62,0x2e]
  39 // CHECK: uaddl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x00,0xa2,0x2e]
  40
  41         uaddl2 v0.8h, v1.16b, v2.16b
  42         uaddl2 v0.4s, v1.8h, v2.8h
  43         uaddl2 v0.2d, v1.4s, v2.4s
  44
  45 // CHECK: uaddl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x00,0x22,0x6e]
  46 // CHECK: uaddl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x00,0x62,0x6e]
  47 // CHECK: uaddl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x00,0xa2,0x6e]
  48
  49         ssubl v0.8h, v1.8b, v2.8b
  50         ssubl v0.4s, v1.4h, v2.4h
  51         ssubl v0.2d, v1.2s, v2.2s
  52
  53 // CHECK: ssubl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x20,0x22,0x0e]
  54 // CHECK: ssubl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x20,0x62,0x0e]
  55 // CHECK: ssubl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x20,0xa2,0x0e]
  56
  57         ssubl2 v0.8h, v1.16b, v2.16b
  58         ssubl2 v0.4s, v1.8h, v2.8h
  59         ssubl2 v0.2d, v1.4s, v2.4s
  60
  61 // CHECK: ssubl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x20,0x22,0x4e]
  62 // CHECK: ssubl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x20,0x62,0x4e]
  63 // CHECK: ssubl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x20,0xa2,0x4e]
  64
  65         usubl v0.8h, v1.8b, v2.8b
  66         usubl v0.4s, v1.4h, v2.4h
  67         usubl v0.2d, v1.2s, v2.2s
  68
  69 // CHECK: usubl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x20,0x22,0x2e]
  70 // CHECK: usubl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x20,0x62,0x2e]
  71 // CHECK: usubl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x20,0xa2,0x2e]
  72
  73         usubl2 v0.8h, v1.16b, v2.16b
  74         usubl2 v0.4s, v1.8h, v2.8h
  75         usubl2 v0.2d, v1.4s, v2.4s
  76
  77 // CHECK: usubl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x20,0x22,0x6e]
  78 // CHECK: usubl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x20,0x62,0x6e]
  79 // CHECK: usubl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x20,0xa2,0x6e]
  80
  81         sabal v0.8h, v1.8b, v2.8b
  82         sabal v0.4s, v1.4h, v2.4h
  83         sabal v0.2d, v1.2s, v2.2s
  84
  85 // CHECK: sabal v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x50,0x22,0x0e]
  86 // CHECK: sabal v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x50,0x62,0x0e]
  87 // CHECK: sabal v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x50,0xa2,0x0e]
  88
  89         sabal2 v0.8h, v1.16b, v2.16b
  90         sabal2 v0.4s, v1.8h, v2.8h
  91         sabal2 v0.2d, v1.4s, v2.4s
  92
  93 // CHECK: sabal2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x50,0x22,0x4e]
  94 // CHECK: sabal2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x50,0x62,0x4e]
  95 // CHECK: sabal2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x50,0xa2,0x4e]
  96
  97         uabal v0.8h, v1.8b, v2.8b
  98         uabal v0.4s, v1.4h, v2.4h
  99         uabal v0.2d, v1.2s, v2.2s
 100
 101 // CHECK: uabal v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x50,0x22,0x2e]
 102 // CHECK: uabal v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x50,0x62,0x2e]
 103 // CHECK: uabal v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x50,0xa2,0x2e]
 104
 105         uabal2 v0.8h, v1.16b, v2.16b
 106         uabal2 v0.4s, v1.8h, v2.8h
 107         uabal2 v0.2d, v1.4s, v2.4s
 108
 109 // CHECK: uabal2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x50,0x22,0x6e]
 110 // CHECK: uabal2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x50,0x62,0x6e]
 111 // CHECK: uabal2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x50,0xa2,0x6e]
 112
 113         sabdl v0.8h, v1.8b, v2.8b
 114         sabdl v0.4s, v1.4h, v2.4h
 115         sabdl v0.2d, v1.2s, v2.2s
 116
 117 // CHECK: sabdl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x70,0x22,0x0e]
 118 // CHECK: sabdl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x70,0x62,0x0e]
 119 // CHECK: sabdl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x70,0xa2,0x0e]
 120
 121         sabdl2 v0.8h, v1.16b, v2.16b
 122         sabdl2 v0.4s, v1.8h, v2.8h
 123         sabdl2 v0.2d, v1.4s, v2.4s
 124
 125 // CHECK: sabdl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x70,0x22,0x4e]
 126 // CHECK: sabdl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x70,0x62,0x4e]
 127 // CHECK: sabdl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x70,0xa2,0x4e]
 128
 129         uabdl v0.8h, v1.8b, v2.8b
 130         uabdl v0.4s, v1.4h, v2.4h
 131         uabdl v0.2d, v1.2s, v2.2s
 132
 133 // CHECK: uabdl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x70,0x22,0x2e]
 134 // CHECK: uabdl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x70,0x62,0x2e]
 135 // CHECK: uabdl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x70,0xa2,0x2e]
 136
 137         uabdl2 v0.8h, v1.16b, v2.16b
 138         uabdl2 v0.4s, v1.8h, v2.8h
 139         uabdl2 v0.2d, v1.4s, v2.4s
 140
 141 // CHECK: uabdl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x70,0x22,0x6e]
 142 // CHECK: uabdl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x70,0x62,0x6e]
 143 // CHECK: uabdl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x70,0xa2,0x6e]
 144
 145         smlal v0.8h, v1.8b, v2.8b
 146         smlal v0.4s, v1.4h, v2.4h
 147         smlal v0.2d, v1.2s, v2.2s
 148
 149 // CHECK: smlal v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x80,0x22,0x0e]
 150 // CHECK: smlal v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x80,0x62,0x0e]
 151 // CHECK: smlal v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x80,0xa2,0x0e]
 152
 153         smlal2 v0.8h, v1.16b, v2.16b
 154         smlal2 v0.4s, v1.8h, v2.8h
 155         smlal2 v0.2d, v1.4s, v2.4s
 156
 157 // CHECK: smlal2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x80,0x22,0x4e]
 158 // CHECK: smlal2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x80,0x62,0x4e]
 159 // CHECK: smlal2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x80,0xa2,0x4e]
 160
 161         umlal v0.8h, v1.8b, v2.8b
 162         umlal v0.4s, v1.4h, v2.4h
 163         umlal v0.2d, v1.2s, v2.2s
 164
 165 // CHECK: umlal v0.8h, v1.8b, v2.8b     // encoding: [0x20,0x80,0x22,0x2e]
 166 // CHECK: umlal v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x80,0x62,0x2e]
 167 // CHECK: umlal v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x80,0xa2,0x2e]
 168
 169         umlal2 v0.8h, v1.16b, v2.16b
 170         umlal2 v0.4s, v1.8h, v2.8h
 171         umlal2 v0.2d, v1.4s, v2.4s
 172
 173 // CHECK: umlal2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0x80,0x22,0x6e]
 174 // CHECK: umlal2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0x80,0x62,0x6e]
 175 // CHECK: umlal2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0x80,0xa2,0x6e]
 176
 177         smlsl v0.8h, v1.8b, v2.8b
 178         smlsl v0.4s, v1.4h, v2.4h
 179         smlsl v0.2d, v1.2s, v2.2s
 180
 181 // CHECK: smlsl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0xa0,0x22,0x0e]
 182 // CHECK: smlsl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xa0,0x62,0x0e]
 183 // CHECK: smlsl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xa0,0xa2,0x0e]
 184
 185         smlsl2 v0.8h, v1.16b, v2.16b
 186         smlsl2 v0.4s, v1.8h, v2.8h
 187         smlsl2 v0.2d, v1.4s, v2.4s
 188
 189 // CHECK: smlsl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0xa0,0x22,0x4e]
 190 // CHECK: smlsl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0xa0,0x62,0x4e]
 191 // CHECK: smlsl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0xa0,0xa2,0x4e]
 192
 193         umlsl v0.8h, v1.8b, v2.8b
 194         umlsl v0.4s, v1.4h, v2.4h
 195         umlsl v0.2d, v1.2s, v2.2s
 196
 197 // CHECK: umlsl v0.8h, v1.8b, v2.8b     // encoding: [0x20,0xa0,0x22,0x2e]
 198 // CHECK: umlsl v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xa0,0x62,0x2e]
 199 // CHECK: umlsl v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xa0,0xa2,0x2e]
 200
 201         umlsl2 v0.8h, v1.16b, v2.16b
 202         umlsl2 v0.4s, v1.8h, v2.8h
 203         umlsl2 v0.2d, v1.4s, v2.4s
 204
 205 // CHECK: umlsl2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0xa0,0x22,0x6e]
 206 // CHECK: umlsl2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0xa0,0x62,0x6e]
 207 // CHECK: umlsl2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0xa0,0xa2,0x6e]
 208
 209         smull v0.8h, v1.8b, v2.8b
 210         smull v0.4s, v1.4h, v2.4h
 211         smull v0.2d, v1.2s, v2.2s
 212
 213 // CHECK: smull v0.8h, v1.8b, v2.8b     // encoding: [0x20,0xc0,0x22,0x0e]
 214 // CHECK: smull v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xc0,0x62,0x0e]
 215 // CHECK: smull v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xc0,0xa2,0x0e]
 216
 217         smull2 v0.8h, v1.16b, v2.16b
 218         smull2 v0.4s, v1.8h, v2.8h
 219         smull2 v0.2d, v1.4s, v2.4s
 220
 221 // CHECK: smull2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0xc0,0x22,0x4e]
 222 // CHECK: smull2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0xc0,0x62,0x4e]
 223 // CHECK: smull2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0xc0,0xa2,0x4e]
 224
 225         umull v0.8h, v1.8b, v2.8b
 226         umull v0.4s, v1.4h, v2.4h
 227         umull v0.2d, v1.2s, v2.2s
 228
 229 // CHECK: umull v0.8h, v1.8b, v2.8b     // encoding: [0x20,0xc0,0x22,0x2e]
 230 // CHECK: umull v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xc0,0x62,0x2e]
 231 // CHECK: umull v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xc0,0xa2,0x2e]
 232
 233         umull2 v0.8h, v1.16b, v2.16b
 234         umull2 v0.4s, v1.8h, v2.8h
 235         umull2 v0.2d, v1.4s, v2.4s
 236
 237 // CHECK: umull2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0xc0,0x22,0x6e]
 238 // CHECK: umull2        v0.4s, v1.8h, v2.8h     // encoding: [0x20,0xc0,0x62,0x6e]
 239 // CHECK: umull2        v0.2d, v1.4s, v2.4s     // encoding: [0x20,0xc0,0xa2,0x6e]
 240
 241 //------------------------------------------------------------------------------
 242 // Long - Variant 2
 243 //------------------------------------------------------------------------------
 244
 245         sqdmlal v0.4s, v1.4h, v2.4h
 246         sqdmlal v0.2d, v1.2s, v2.2s
 247
 248 // CHECK: sqdmlal       v0.4s, v1.4h, v2.4h     // encoding: [0x20,0x90,0x62,0x0e]
 249 // CHECK: sqdmlal       v0.2d, v1.2s, v2.2s     // encoding: [0x20,0x90,0xa2,0x0e]
 250
 251         sqdmlal2 v0.4s, v1.8h, v2.8h
 252         sqdmlal2 v0.2d, v1.4s, v2.4s
 253
 254 // CHECK: sqdmlal2      v0.4s, v1.8h, v2.8h // encoding: [0x20,0x90,0x62,0x4e]
 255 // CHECK: sqdmlal2      v0.2d, v1.4s, v2.4s // encoding: [0x20,0x90,0xa2,0x4e]
 256
 257         sqdmlsl v0.4s, v1.4h, v2.4h
 258         sqdmlsl v0.2d, v1.2s, v2.2s
 259
 260 // CHECK: sqdmlsl       v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xb0,0x62,0x0e]
 261 // CHECK: sqdmlsl       v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xb0,0xa2,0x0e]
 262
 263         sqdmlsl2 v0.4s, v1.8h, v2.8h
 264         sqdmlsl2 v0.2d, v1.4s, v2.4s
 265
 266 // CHECK: sqdmlsl2      v0.4s, v1.8h, v2.8h // encoding: [0x20,0xb0,0x62,0x4e]
 267 // CHECK: sqdmlsl2      v0.2d, v1.4s, v2.4s // encoding: [0x20,0xb0,0xa2,0x4e]
 268
 269         sqdmull v0.4s, v1.4h, v2.4h
 270         sqdmull v0.2d, v1.2s, v2.2s
 271
 272 // CHECK: sqdmull       v0.4s, v1.4h, v2.4h     // encoding: [0x20,0xd0,0x62,0x0e]
 273 // CHECK: sqdmull       v0.2d, v1.2s, v2.2s     // encoding: [0x20,0xd0,0xa2,0x0e]
 274
 275         sqdmull2 v0.4s, v1.8h, v2.8h
 276         sqdmull2 v0.2d, v1.4s, v2.4s
 277
 278 // CHECK: sqdmull2      v0.4s, v1.8h, v2.8h // encoding: [0x20,0xd0,0x62,0x4e]
 279 // CHECK: sqdmull2      v0.2d, v1.4s, v2.4s // encoding: [0x20,0xd0,0xa2,0x4e]
 280
 281 //------------------------------------------------------------------------------
 282 // Long - Variant 3
 283 //------------------------------------------------------------------------------
 284
 285         pmull v0.8h, v1.8b, v2.8b
 286         pmull v0.1q, v1.1d, v2.1d
 287
 288 // CHECK: pmull v0.8h, v1.8b, v2.8b     // encoding: [0x20,0xe0,0x22,0x0e]
 289 // CHECK: pmull v0.1q, v1.1d, v2.1d     // encoding: [0x20,0xe0,0xe2,0x0e]
 290
 291         pmull2 v0.8h, v1.16b, v2.16b
 292         pmull2 v0.1q, v1.2d, v2.2d
 293
 294 // CHECK: pmull2        v0.8h, v1.16b, v2.16b   // encoding: [0x20,0xe0,0x22,0x4e]
 295 // CHECK: pmull2        v0.1q, v1.2d, v2.2d     // encoding: [0x20,0xe0,0xe2,0x4e]
 296
 297 //------------------------------------------------------------------------------
 298 // Widen
 299 //------------------------------------------------------------------------------
 300
 301         saddw v0.8h, v1.8h, v2.8b
 302         saddw v0.4s, v1.4s, v2.4h
 303         saddw v0.2d, v1.2d, v2.2s
 304
 305 // CHECK: saddw v0.8h, v1.8h, v2.8b     // encoding: [0x20,0x10,0x22,0x0e]
 306 // CHECK: saddw v0.4s, v1.4s, v2.4h     // encoding: [0x20,0x10,0x62,0x0e]
 307 // CHECK: saddw v0.2d, v1.2d, v2.2s     // encoding: [0x20,0x10,0xa2,0x0e]
 308
 309         saddw2 v0.8h, v1.8h, v2.16b
 310         saddw2 v0.4s, v1.4s, v2.8h
 311         saddw2 v0.2d, v1.2d, v2.4s
 312
 313 // CHECK: saddw2        v0.8h, v1.8h, v2.16b    // encoding: [0x20,0x10,0x22,0x4e]
 314 // CHECK: saddw2        v0.4s, v1.4s, v2.8h     // encoding: [0x20,0x10,0x62,0x4e]
 315 // CHECK: saddw2        v0.2d, v1.2d, v2.4s     // encoding: [0x20,0x10,0xa2,0x4e]
 316
 317         uaddw v0.8h, v1.8h, v2.8b
 318         uaddw v0.4s, v1.4s, v2.4h
 319         uaddw v0.2d, v1.2d, v2.2s
 320
 321 // CHECK: uaddw v0.8h, v1.8h, v2.8b     // encoding: [0x20,0x10,0x22,0x2e]
 322 // CHECK: uaddw v0.4s, v1.4s, v2.4h     // encoding: [0x20,0x10,0x62,0x2e]
 323 // CHECK: uaddw v0.2d, v1.2d, v2.2s     // encoding: [0x20,0x10,0xa2,0x2e]
 324
 325         uaddw2 v0.8h, v1.8h, v2.16b
 326         uaddw2 v0.4s, v1.4s, v2.8h
 327         uaddw2 v0.2d, v1.2d, v2.4s
 328
 329 // CHECK: uaddw2        v0.8h, v1.8h, v2.16b    // encoding: [0x20,0x10,0x22,0x6e]
 330 // CHECK: uaddw2        v0.4s, v1.4s, v2.8h     // encoding: [0x20,0x10,0x62,0x6e]
 331 // CHECK: uaddw2        v0.2d, v1.2d, v2.4s     // encoding: [0x20,0x10,0xa2,0x6e]
 332
 333         ssubw v0.8h, v1.8h, v2.8b
 334         ssubw v0.4s, v1.4s, v2.4h
 335         ssubw v0.2d, v1.2d, v2.2s
 336
 337 // CHECK: ssubw v0.8h, v1.8h, v2.8b     // encoding: [0x20,0x30,0x22,0x0e]
 338 // CHECK: ssubw v0.4s, v1.4s, v2.4h     // encoding: [0x20,0x30,0x62,0x0e]
 339 // CHECK: ssubw v0.2d, v1.2d, v2.2s     // encoding: [0x20,0x30,0xa2,0x0e]
 340
 341         ssubw2 v0.8h, v1.8h, v2.16b
 342         ssubw2 v0.4s, v1.4s, v2.8h
 343         ssubw2 v0.2d, v1.2d, v2.4s
 344
 345 // CHECK: ssubw2        v0.8h, v1.8h, v2.16b    // encoding: [0x20,0x30,0x22,0x4e]
 346 // CHECK: ssubw2        v0.4s, v1.4s, v2.8h     // encoding: [0x20,0x30,0x62,0x4e]
 347 // CHECK: ssubw2        v0.2d, v1.2d, v2.4s     // encoding: [0x20,0x30,0xa2,0x4e]
 348
 349         usubw v0.8h, v1.8h, v2.8b
 350         usubw v0.4s, v1.4s, v2.4h
 351         usubw v0.2d, v1.2d, v2.2s
 352
 353 // CHECK: usubw v0.8h, v1.8h, v2.8b     // encoding: [0x20,0x30,0x22,0x2e]
 354 // CHECK: usubw v0.4s, v1.4s, v2.4h     // encoding: [0x20,0x30,0x62,0x2e]
 355 // CHECK: usubw v0.2d, v1.2d, v2.2s     // encoding: [0x20,0x30,0xa2,0x2e]
 356
 357         usubw2 v0.8h, v1.8h, v2.16b
 358         usubw2 v0.4s, v1.4s, v2.8h
 359         usubw2 v0.2d, v1.2d, v2.4s
 360
 361 // CHECK: usubw2        v0.8h, v1.8h, v2.16b    // encoding: [0x20,0x30,0x22,0x6e]
 362 // CHECK: usubw2        v0.4s, v1.4s, v2.8h     // encoding: [0x20,0x30,0x62,0x6e]
 363 // CHECK: usubw2        v0.2d, v1.2d, v2.4s     // encoding: [0x20,0x30,0xa2,0x6e]
 364
 365 //------------------------------------------------------------------------------
 366 // Narrow
 367 //------------------------------------------------------------------------------
 368
 369         addhn v0.8b, v1.8h, v2.8h
 370         addhn v0.4h, v1.4s, v2.4s
 371         addhn v0.2s, v1.2d, v2.2d
 372
 373 // CHECK: addhn v0.8b, v1.8h, v2.8h     // encoding: [0x20,0x40,0x22,0x0e]
 374 // CHECK: addhn v0.4h, v1.4s, v2.4s     // encoding: [0x20,0x40,0x62,0x0e]
 375 // CHECK: addhn v0.2s, v1.2d, v2.2d     // encoding: [0x20,0x40,0xa2,0x0e]
 376
 377         addhn2 v0.16b, v1.8h, v2.8h
 378         addhn2 v0.8h, v1.4s, v2.4s
 379         addhn2 v0.4s, v1.2d, v2.2d
 380
 381 // CHECK: addhn2        v0.16b, v1.8h, v2.8h    // encoding: [0x20,0x40,0x22,0x4e]
 382 // CHECK: addhn2        v0.8h, v1.4s, v2.4s     // encoding: [0x20,0x40,0x62,0x4e]
 383 // CHECK: addhn2        v0.4s, v1.2d, v2.2d     // encoding: [0x20,0x40,0xa2,0x4e]
 384
 385         raddhn v0.8b, v1.8h, v2.8h
 386         raddhn v0.4h, v1.4s, v2.4s
 387         raddhn v0.2s, v1.2d, v2.2d
 388
 389 // CHECK: raddhn        v0.8b, v1.8h, v2.8h     // encoding: [0x20,0x40,0x22,0x2e]
 390 // CHECK: raddhn        v0.4h, v1.4s, v2.4s     // encoding: [0x20,0x40,0x62,0x2e]
 391 // CHECK: raddhn        v0.2s, v1.2d, v2.2d     // encoding: [0x20,0x40,0xa2,0x2e]
 392
 393         raddhn2 v0.16b, v1.8h, v2.8h
 394         raddhn2 v0.8h, v1.4s, v2.4s
 395         raddhn2 v0.4s, v1.2d, v2.2d
 396
 397 // CHECK: raddhn2       v0.16b, v1.8h, v2.8h    // encoding: [0x20,0x40,0x22,0x6e]
 398 // CHECK: raddhn2       v0.8h, v1.4s, v2.4s     // encoding: [0x20,0x40,0x62,0x6e]
 399 // CHECK: raddhn2       v0.4s, v1.2d, v2.2d     // encoding: [0x20,0x40,0xa2,0x6e]
 400
 401         rsubhn v0.8b, v1.8h, v2.8h
 402         rsubhn v0.4h, v1.4s, v2.4s
 403         rsubhn v0.2s, v1.2d, v2.2d
 404
 405 // CHECK: rsubhn        v0.8b, v1.8h, v2.8h     // encoding: [0x20,0x60,0x22,0x2e]
 406 // CHECK: rsubhn        v0.4h, v1.4s, v2.4s     // encoding: [0x20,0x60,0x62,0x2e]
 407 // CHECK: rsubhn        v0.2s, v1.2d, v2.2d     // encoding: [0x20,0x60,0xa2,0x2e]
 408
 409         rsubhn2 v0.16b, v1.8h, v2.8h
 410         rsubhn2 v0.8h, v1.4s, v2.4s
 411         rsubhn2 v0.4s, v1.2d, v2.2d
 412
 413 // CHECK: rsubhn2       v0.16b, v1.8h, v2.8h    // encoding: [0x20,0x60,0x22,0x6e]
 414 // CHECK: rsubhn2       v0.8h, v1.4s, v2.4s     // encoding: [0x20,0x60,0x62,0x6e]
 415 // CHECK: rsubhn2       v0.4s, v1.2d, v2.2d     // encoding: [0x20,0x60,0xa2,0x6e]