test/MC/X86/x86-16.s

   1 // RUN: llvm-mc -triple i386-unknown-unknown --show-encoding %s | FileCheck %s
   2
   3         .code16
   4
   5         movl $0x12345678, %ebx
   6 // CHECK: movl
   7 // CHECK: encoding: [0x66,0xbb,0x78,0x56,0x34,0x12]
   8         pause
   9 // CHECK: pause
  10 // CHECK: encoding: [0xf3,0x90]
  11         sfence
  12 // CHECK: sfence
  13 // CHECK: encoding: [0x0f,0xae,0xf8]
  14         lfence
  15 // CHECK: lfence
  16 // CHECK: encoding: [0x0f,0xae,0xe8]
  17         mfence
  18         stgi
  19 // CHECK: stgi
  20 // CHECK: encoding: [0x0f,0x01,0xdc]
  21         clgi
  22 // CHECK: clgi
  23 // CHECK: encoding: [0x0f,0x01,0xdd]
  24
  25         rdtscp
  26 // CHECK: rdtscp
  27 // CHECK:  encoding: [0x0f,0x01,0xf9]
  28
  29
  30 // CHECK: movl  %eax, 16(%ebp)          # encoding: [0x67,0x66,0x89,0x45,0x10]
  31         movl    %eax, 16(%ebp)
  32 // CHECK: movl  %eax, -16(%ebp)          # encoding: [0x67,0x66,0x89,0x45,0xf0]
  33         movl    %eax, -16(%ebp)
  34
  35 // CHECK: testb %bl, %cl                # encoding: [0x84,0xcb]
  36         testb %bl, %cl
  37
  38 // CHECK: cmpl  %eax, %ebx              # encoding: [0x66,0x39,0xc3]
  39         cmpl %eax, %ebx
  40
  41 // CHECK: addw  %ax, %ax                # encoding: [0x01,0xc0]
  42         addw %ax, %ax
  43
  44 // CHECK: shrl  %eax                    # encoding: [0x66,0xd1,0xe8]
  45         shrl $1, %eax
  46
  47 // CHECK: shll  %eax                    # encoding: [0x66,0xd1,0xe0]
  48         sall $1, %eax
  49 // CHECK: shll  %eax                    # encoding: [0x66,0xd1,0xe0]
  50         sal $1, %eax
  51
  52 into
  53 // CHECK: into
  54 // CHECK:  encoding: [0xce]
  55 int3
  56 // CHECK: int3
  57 // CHECK:  encoding: [0xcc]
  58 int $4
  59 // CHECK: int $4
  60 // CHECK:  encoding: [0xcd,0x04]
  61 int $255
  62 // CHECK: int $255
  63 // CHECK:  encoding: [0xcd,0xff]
  64
  65 // CHECK: pushfw        # encoding: [0x9c]
  66         pushf
  67 // CHECK: pushfl        # encoding: [0x66,0x9c]
  68         pushfl
  69 // CHECK: popfw         # encoding: [0x9d]
  70         popf
  71 // CHECK: popfl         # encoding: [0x66,0x9d]
  72         popfl
  73
  74 // CHECK: cmoval        %eax, %edx
  75 // CHECK:  encoding: [0x66,0x0f,0x47,0xd0]
  76                 cmoval  %eax,%edx
  77
  78 // CHECK: cmovael       %eax, %edx
  79 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
  80                 cmovael %eax,%edx
  81
  82 // CHECK: cmovbel       %eax, %edx
  83 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
  84                 cmovbel %eax,%edx
  85
  86 // CHECK: cmovbl        %eax, %edx
  87 // CHECK:  encoding: [0x66,0x0f,0x42,0xd0]
  88                 cmovbl  %eax,%edx
  89
  90 // CHECK: cmovbw %bx, %bx
  91 cmovnae %bx,%bx
  92
  93
  94 // CHECK: cmovbel       %eax, %edx
  95 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
  96                 cmovbel %eax,%edx
  97
  98 // CHECK: cmovbl        %eax, %edx
  99 // CHECK:  encoding: [0x66,0x0f,0x42,0xd0]
 100                 cmovcl  %eax,%edx
 101
 102 // CHECK: cmovel        %eax, %edx
 103 // CHECK:  encoding: [0x66,0x0f,0x44,0xd0]
 104                 cmovel  %eax,%edx
 105
 106 // CHECK: cmovgl        %eax, %edx
 107 // CHECK:  encoding: [0x66,0x0f,0x4f,0xd0]
 108                 cmovgl  %eax,%edx
 109
 110 // CHECK: cmovgel       %eax, %edx
 111 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 112                 cmovgel %eax,%edx
 113
 114 // CHECK: cmovll        %eax, %edx
 115 // CHECK:  encoding: [0x66,0x0f,0x4c,0xd0]
 116                 cmovll  %eax,%edx
 117
 118 // CHECK: cmovlel       %eax, %edx
 119 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 120                 cmovlel %eax,%edx
 121
 122 // CHECK: cmovbel       %eax, %edx
 123 // CHECK:  encoding: [0x66,0x0f,0x46,0xd0]
 124                 cmovnal %eax,%edx
 125
 126 // CHECK: cmovnel       %eax, %edx
 127 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 128                 cmovnel %eax,%edx
 129
 130 // CHECK: cmovael       %eax, %edx
 131 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
 132                 cmovnbl %eax,%edx
 133
 134 // CHECK: cmoval        %eax, %edx
 135 // CHECK:  encoding: [0x66,0x0f,0x47,0xd0]
 136                 cmovnbel        %eax,%edx
 137
 138 // CHECK: cmovael       %eax, %edx
 139 // CHECK:  encoding: [0x66,0x0f,0x43,0xd0]
 140                 cmovncl %eax,%edx
 141
 142 // CHECK: cmovnel       %eax, %edx
 143 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 144                 cmovnel %eax,%edx
 145
 146 // CHECK: cmovlel       %eax, %edx
 147 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 148                 cmovngl %eax,%edx
 149
 150 // CHECK: cmovgel       %eax, %edx
 151 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 152                 cmovnl  %eax,%edx
 153
 154 // CHECK: cmovnel       %eax, %edx
 155 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 156                 cmovnel %eax,%edx
 157
 158 // CHECK: cmovlel       %eax, %edx
 159 // CHECK:  encoding: [0x66,0x0f,0x4e,0xd0]
 160                 cmovngl %eax,%edx
 161
 162 // CHECK: cmovll        %eax, %edx
 163 // CHECK:  encoding: [0x66,0x0f,0x4c,0xd0]
 164                 cmovngel        %eax,%edx
 165
 166 // CHECK: cmovgel       %eax, %edx
 167 // CHECK:  encoding: [0x66,0x0f,0x4d,0xd0]
 168                 cmovnll %eax,%edx
 169
 170 // CHECK: cmovgl        %eax, %edx
 171 // CHECK:  encoding: [0x66,0x0f,0x4f,0xd0]
 172                 cmovnlel        %eax,%edx
 173
 174 // CHECK: cmovnol       %eax, %edx
 175 // CHECK:  encoding: [0x66,0x0f,0x41,0xd0]
 176                 cmovnol %eax,%edx
 177
 178 // CHECK: cmovnpl       %eax, %edx
 179 // CHECK:  encoding: [0x66,0x0f,0x4b,0xd0]
 180                 cmovnpl %eax,%edx
 181
 182 // CHECK: cmovnsl       %eax, %edx
 183 // CHECK:  encoding: [0x66,0x0f,0x49,0xd0]
 184                 cmovnsl %eax,%edx
 185
 186 // CHECK: cmovnel       %eax, %edx
 187 // CHECK:  encoding: [0x66,0x0f,0x45,0xd0]
 188                 cmovnzl %eax,%edx
 189
 190 // CHECK: cmovol        %eax, %edx
 191 // CHECK:  encoding: [0x66,0x0f,0x40,0xd0]
 192                 cmovol  %eax,%edx
 193
 194 // CHECK: cmovpl        %eax, %edx
 195 // CHECK:  encoding: [0x66,0x0f,0x4a,0xd0]
 196                 cmovpl  %eax,%edx
 197
 198 // CHECK: cmovsl        %eax, %edx
 199 // CHECK:  encoding: [0x66,0x0f,0x48,0xd0]
 200                 cmovsl  %eax,%edx
 201
 202 // CHECK: cmovel        %eax, %edx
 203 // CHECK:  encoding: [0x66,0x0f,0x44,0xd0]
 204                 cmovzl  %eax,%edx
 205
 206 // CHECK: fmul  %st(0)
 207 // CHECK:  encoding: [0xd8,0xc8]
 208         fmul %st(0), %st
 209
 210 // CHECK: fadd  %st(0)
 211 // CHECK:  encoding: [0xd8,0xc0]
 212         fadd %st(0), %st
 213
 214 // CHECK: fsub  %st(0)
 215 // CHECK:  encoding: [0xd8,0xe0]
 216         fsub %st(0), %st
 217
 218 // CHECK: fsubr %st(0)
 219 // CHECK:  encoding: [0xd8,0xe8]
 220         fsubr %st(0), %st
 221
 222 // CHECK: fdivr %st(0)
 223 // CHECK:  encoding: [0xd8,0xf8]
 224         fdivr %st(0), %st
 225
 226 // CHECK: fdiv  %st(0)
 227 // CHECK:  encoding: [0xd8,0xf0]
 228         fdiv %st(0), %st
 229
 230 // CHECK: movl  %cs, %eax
 231 // CHECK:  encoding: [0x66,0x8c,0xc8]
 232         movl %cs, %eax
 233
 234 // CHECK: movw  %cs, %ax
 235 // CHECK:  encoding: [0x8c,0xc8]
 236         movw %cs, %ax
 237
 238 // CHECK: movl  %cs, (%eax)
 239 // CHECK:  encoding: [0x67,0x66,0x8c,0x08]
 240         movl %cs, (%eax)
 241
 242 // CHECK: movw  %cs, (%eax)
 243 // CHECK:  encoding: [0x67,0x8c,0x08]
 244         movw %cs, (%eax)
 245
 246 // CHECK: movl  %eax, %cs
 247 // CHECK:  encoding: [0x66,0x8e,0xc8]
 248         movl %eax, %cs
 249
 250 // CHECK: movl  (%eax), %cs
 251 // CHECK:  encoding: [0x67,0x66,0x8e,0x08]
 252         movl (%eax), %cs
 253
 254 // CHECK: movw  (%eax), %cs
 255 // CHECK:  encoding: [0x67,0x8e,0x08]
 256         movw (%eax), %cs
 257
 258 // CHECK: movl  %cr0, %eax
 259 // CHECK:  encoding: [0x0f,0x20,0xc0]
 260         movl %cr0,%eax
 261
 262 // CHECK: movl  %cr1, %eax
 263 // CHECK:  encoding: [0x0f,0x20,0xc8]
 264         movl %cr1,%eax
 265
 266 // CHECK: movl  %cr2, %eax
 267 // CHECK:  encoding: [0x0f,0x20,0xd0]
 268         movl %cr2,%eax
 269
 270 // CHECK: movl  %cr3, %eax
 271 // CHECK:  encoding: [0x0f,0x20,0xd8]
 272         movl %cr3,%eax
 273
 274 // CHECK: movl  %cr4, %eax
 275 // CHECK:  encoding: [0x0f,0x20,0xe0]
 276         movl %cr4,%eax
 277
 278 // CHECK: movl  %dr0, %eax
 279 // CHECK:  encoding: [0x0f,0x21,0xc0]
 280         movl %dr0,%eax
 281
 282 // CHECK: movl  %dr1, %eax
 283 // CHECK:  encoding: [0x0f,0x21,0xc8]
 284         movl %dr1,%eax
 285
 286 // CHECK: movl  %dr1, %eax
 287 // CHECK:  encoding: [0x0f,0x21,0xc8]
 288         movl %dr1,%eax
 289
 290 // CHECK: movl  %dr2, %eax
 291 // CHECK:  encoding: [0x0f,0x21,0xd0]
 292         movl %dr2,%eax
 293
 294 // CHECK: movl  %dr3, %eax
 295 // CHECK:  encoding: [0x0f,0x21,0xd8]
 296         movl %dr3,%eax
 297
 298 // CHECK: movl  %dr4, %eax
 299 // CHECK:  encoding: [0x0f,0x21,0xe0]
 300         movl %dr4,%eax
 301
 302 // CHECK: movl  %dr5, %eax
 303 // CHECK:  encoding: [0x0f,0x21,0xe8]
 304         movl %dr5,%eax
 305
 306 // CHECK: movl  %dr6, %eax
 307 // CHECK:  encoding: [0x0f,0x21,0xf0]
 308         movl %dr6,%eax
 309
 310 // CHECK: movl  %dr7, %eax
 311 // CHECK:  encoding: [0x0f,0x21,0xf8]
 312         movl %dr7,%eax
 313
 314 // CHECK: wait
 315 // CHECK:  encoding: [0x9b]
 316         fwait
 317
 318 // CHECK: pusha
 319 // CHECK:  encoding: [0x60]
 320                 pusha
 321
 322 // CHECK: popa
 323 // CHECK:  encoding: [0x61]
 324                 popa
 325
 326 // CHECK: pushaw
 327 // CHECK:  encoding: [0x60]
 328                 pushaw
 329
 330 // CHECK: popaw
 331 // CHECK:  encoding: [0x61]
 332                 popaw
 333
 334 // CHECK: pushal
 335 // CHECK:  encoding: [0x66,0x60]
 336                 pushal
 337
 338 // CHECK: popal
 339 // CHECK:  encoding: [0x66,0x61]
 340                 popal
 341
 342 // CHECK: jmpl *8(%eax)
 343 // CHECK:   encoding: [0x67,0x66,0xff,0x60,0x08]
 344         jmpl    *8(%eax)
 345
 346 // CHECK: lcalll $2, $4660
 347 // CHECK:   encoding: [0x66,0x9a,0x34,0x12,0x00,0x00,0x02,0x00]
 348 lcalll $0x2, $0x1234
 349
 350
 351 sysret
 352 // CHECK: sysretl
 353 // CHECK: encoding: [0x0f,0x07]
 354 sysretl
 355 // CHECK: sysretl
 356 // CHECK: encoding: [0x0f,0x07]
 357
 358 testl   %ecx, -24(%ebp)
 359 // CHECK: testl -24(%ebp), %ecx
 360 testl   -24(%ebp), %ecx
 361 // CHECK: testl -24(%ebp), %ecx
 362
 363
 364 push %cs
 365 // CHECK: pushw %cs
 366 // CHECK: encoding: [0x0e]
 367 push %ds
 368 // CHECK: pushw %ds
 369 // CHECK: encoding: [0x1e]
 370 push %ss
 371 // CHECK: pushw %ss
 372 // CHECK: encoding: [0x16]
 373 push %es
 374 // CHECK: pushw %es
 375 // CHECK: encoding: [0x06]
 376 push %fs
 377 // CHECK: pushw %fs
 378 // CHECK: encoding: [0x0f,0xa0]
 379 push %gs
 380 // CHECK: pushw %gs
 381 // CHECK: encoding: [0x0f,0xa8]
 382
 383 pushw %cs
 384 // CHECK: pushw %cs
 385 // CHECK: encoding: [0x0e]
 386 pushw %ds
 387 // CHECK: pushw %ds
 388 // CHECK: encoding: [0x1e]
 389 pushw %ss
 390 // CHECK: pushw %ss
 391 // CHECK: encoding: [0x16]
 392 pushw %es
 393 // CHECK: pushw %es
 394 // CHECK: encoding: [0x06]
 395 pushw %fs
 396 // CHECK: pushw %fs
 397 // CHECK: encoding: [0x0f,0xa0]
 398 pushw %gs
 399 // CHECK: pushw %gs
 400 // CHECK: encoding: [0x0f,0xa8]
 401
 402 pushl %cs
 403 // CHECK: pushl %cs
 404 // CHECK: encoding: [0x66,0x0e]
 405 pushl %ds
 406 // CHECK: pushl %ds
 407 // CHECK: encoding: [0x66,0x1e]
 408 pushl %ss
 409 // CHECK: pushl %ss
 410 // CHECK: encoding: [0x66,0x16]
 411 pushl %es
 412 // CHECK: pushl %es
 413 // CHECK: encoding: [0x66,0x06]
 414 pushl %fs
 415 // CHECK: pushl %fs
 416 // CHECK: encoding: [0x66,0x0f,0xa0]
 417 pushl %gs
 418 // CHECK: pushl %gs
 419 // CHECK: encoding: [0x66,0x0f,0xa8]
 420
 421 pop %ss
 422 // CHECK: popw  %ss
 423 // CHECK: encoding: [0x17]
 424 pop %ds
 425 // CHECK: popw  %ds
 426 // CHECK: encoding: [0x1f]
 427 pop %es
 428 // CHECK: popw  %es
 429 // CHECK: encoding: [0x07]
 430
 431 popl %ss
 432 // CHECK: popl  %ss
 433 // CHECK: encoding: [0x66,0x17]
 434 popl %ds
 435 // CHECK: popl  %ds
 436 // CHECK: encoding: [0x66,0x1f]
 437 popl %es
 438 // CHECK: popl  %es
 439 // CHECK: encoding: [0x66,0x07]
 440
 441 pushfd
 442 // CHECK: pushfl
 443 popfd
 444 // CHECK: popfl
 445 pushfl
 446 // CHECK: pushfl
 447 popfl
 448 // CHECK: popfl
 449
 450
 451         setc    %bl
 452         setnae  %bl
 453         setnb   %bl
 454         setnc   %bl
 455         setna   %bl
 456         setnbe  %bl
 457         setpe   %bl
 458         setpo   %bl
 459         setnge  %bl
 460         setnl   %bl
 461         setng   %bl
 462         setnle  %bl
 463
 464         setneb  %cl // CHECK: setne %cl
 465         setcb   %bl // CHECK: setb %bl
 466         setnaeb %bl // CHECK: setb %bl
 467
 468
 469 // CHECK: lcalll        $31438, $31438
 470 // CHECK: lcalll        $31438, $31438
 471 // CHECK: ljmpl $31438, $31438
 472 // CHECK: ljmpl $31438, $31438
 473
 474 calll   $0x7ace,$0x7ace
 475 lcalll  $0x7ace,$0x7ace
 476 jmpl    $0x7ace,$0x7ace
 477 ljmpl   $0x7ace,$0x7ace
 478
 479 // CHECK: calll a
 480  calll a
 481
 482 // CHECK:       incb    %al # encoding: [0xfe,0xc0]
 483         incb %al
 484
 485 // CHECK:       incw    %ax # encoding: [0x40]
 486         incw %ax
 487
 488 // CHECK:       incl    %eax # encoding: [0x66,0x40]
 489         incl %eax
 490
 491 // CHECK:       decb    %al # encoding: [0xfe,0xc8]
 492         decb %al
 493
 494 // CHECK:       decw    %ax # encoding: [0x48]
 495         decw %ax
 496
 497 // CHECK:       decl    %eax # encoding: [0x66,0x48]
 498         decl %eax
 499
 500 // CHECK: pshufw $14, %mm4, %mm0 # encoding: [0x0f,0x70,0xc4,0x0e]
 501 pshufw $14, %mm4, %mm0
 502
 503 // CHECK: pshufw $90, %mm4, %mm0 # encoding: [0x0f,0x70,0xc4,0x5a]
 504 pshufw $90, %mm4, %mm0
 505
 506 // CHECK: aaa
 507 // CHECK:  encoding: [0x37]
 508                 aaa
 509
 510 // CHECK: aad   $1
 511 // CHECK:  encoding: [0xd5,0x01]
 512                 aad     $1
 513
 514 // CHECK: aad
 515 // CHECK:  encoding: [0xd5,0x0a]
 516                 aad     $0xA
 517
 518 // CHECK: aad
 519 // CHECK:  encoding: [0xd5,0x0a]
 520                 aad
 521
 522 // CHECK: aam   $2
 523 // CHECK:  encoding: [0xd4,0x02]
 524                 aam     $2
 525
 526 // CHECK: aam
 527 // CHECK:  encoding: [0xd4,0x0a]
 528                 aam     $0xA
 529
 530 // CHECK: aam
 531 // CHECK:  encoding: [0xd4,0x0a]
 532                 aam
 533
 534 // CHECK: aas
 535 // CHECK:  encoding: [0x3f]
 536                 aas
 537
 538 // CHECK: daa
 539 // CHECK:  encoding: [0x27]
 540                 daa
 541
 542 // CHECK: das
 543 // CHECK:  encoding: [0x2f]
 544                 das
 545
 546 // CHECK: bound 2(%eax), %bx
 547 // CHECK:  encoding: [0x67,0x62,0x58,0x02]
 548                 bound   2(%eax),%bx
 549
 550 // CHECK: bound 4(%ebx), %ecx
 551 // CHECK:  encoding: [0x67,0x66,0x62,0x4b,0x04]
 552                 bound   4(%ebx),%ecx
 553
 554 // CHECK: arpl  %bx, %bx
 555 // CHECK:  encoding: [0x63,0xdb]
 556                 arpl    %bx,%bx
 557
 558 // CHECK: arpl  %bx, 6(%ecx)
 559 // CHECK:  encoding: [0x67,0x63,0x59,0x06]
 560                 arpl    %bx,6(%ecx)
 561
 562 // CHECK: fcompi        %st(2)
 563 // CHECK:  encoding: [0xdf,0xf2]
 564                 fcompi  %st(2), %st
 565
 566 // CHECK: fcompi        %st(2)
 567 // CHECK:  encoding: [0xdf,0xf2]
 568                 fcompi  %st(2)
 569
 570 // CHECK: fcompi
 571 // CHECK:  encoding: [0xdf,0xf1]
 572                 fcompi
 573
 574 // CHECK: fucompi       %st(2)
 575 // CHECK:  encoding: [0xdf,0xea]
 576                 fucompi %st(2),%st
 577
 578 // CHECK: fucompi       %st(2)
 579 // CHECK:  encoding: [0xdf,0xea]
 580                 fucompi %st(2)
 581
 582 // CHECK: fucompi
 583 // CHECK:  encoding: [0xdf,0xe9]
 584                 fucompi
 585
 586 // CHECK: wait
 587 // CHECK:  encoding: [0x9b]
 588                 fclex
 589
 590 // CHECK: fnclex
 591 // CHECK:  encoding: [0xdb,0xe2]
 592                 fnclex
 593
 594 // CHECK: ud2
 595 // CHECK:  encoding: [0x0f,0x0b]
 596                 ud2
 597
 598 // CHECK: ud2
 599 // CHECK:  encoding: [0x0f,0x0b]
 600                 ud2a
 601
 602 // CHECK: ud2b
 603 // CHECK:  encoding: [0x0f,0xb9]
 604                 ud2b
 605
 606 // CHECK: loope 0
 607 // CHECK: encoding: [0xe1,A]
 608         loopz 0
 609
 610 // CHECK: loopne 0
 611 // CHECK: encoding: [0xe0,A]
 612         loopnz 0
 613
 614 // CHECK: outsb # encoding: [0x6e]
 615 // CHECK: outsb
 616 // CHECK: outsb
 617         outsb
 618         outsb   %ds:(%si), %dx
 619         outsb   (%si), %dx
 620
 621 // CHECK: outsw # encoding: [0x6f]
 622 // CHECK: outsw
 623 // CHECK: outsw
 624         outsw
 625         outsw   %ds:(%si), %dx
 626         outsw   (%si), %dx
 627
 628 // CHECK: outsl # encoding: [0x66,0x6f]
 629 // CHECK: outsl
 630         outsl
 631         outsl   %ds:(%si), %dx
 632         outsl   (%si), %dx
 633
 634 // CHECK: insb # encoding: [0x6c]
 635 // CHECK: insb
 636         insb
 637         insb    %dx, %es:(%di)
 638
 639 // CHECK: insw # encoding: [0x6d]
 640 // CHECK: insw
 641         insw
 642         insw    %dx, %es:(%di)
 643
 644 // CHECK: insl # encoding: [0x66,0x6d]
 645 // CHECK: insl
 646         insl
 647         insl    %dx, %es:(%di)
 648
 649 // CHECK: movsb # encoding: [0xa4]
 650 // CHECK: movsb
 651 // CHECK: movsb
 652         movsb
 653         movsb   %ds:(%si), %es:(%di)
 654         movsb   (%si), %es:(%di)
 655
 656 // CHECK: movsw # encoding: [0xa5]
 657 // CHECK: movsw
 658 // CHECK: movsw
 659         movsw
 660         movsw   %ds:(%si), %es:(%di)
 661         movsw   (%si), %es:(%di)
 662
 663 // CHECK: movsl # encoding: [0x66,0xa5]
 664 // CHECK: movsl
 665 // CHECK: movsl
 666         movsl
 667         movsl   %ds:(%si), %es:(%di)
 668         movsl   (%si), %es:(%di)
 669
 670 // CHECK: lodsb # encoding: [0xac]
 671 // CHECK: lodsb
 672 // CHECK: lodsb
 673 // CHECK: lodsb
 674 // CHECK: lodsb
 675         lodsb
 676         lodsb   %ds:(%si), %al
 677         lodsb   (%si), %al
 678         lods    %ds:(%si), %al
 679         lods    (%si), %al
 680
 681 // CHECK: lodsw # encoding: [0xad]
 682 // CHECK: lodsw
 683 // CHECK: lodsw
 684 // CHECK: lodsw
 685 // CHECK: lodsw
 686         lodsw
 687         lodsw   %ds:(%si), %ax
 688         lodsw   (%si), %ax
 689         lods    %ds:(%si), %ax
 690         lods    (%si), %ax
 691
 692 // CHECK: lodsl # encoding: [0x66,0xad]
 693 // CHECK: lodsl
 694 // CHECK: lodsl
 695 // CHECK: lodsl
 696 // CHECK: lodsl
 697         lodsl
 698         lodsl   %ds:(%si), %eax
 699         lodsl   (%si), %eax
 700         lods    %ds:(%si), %eax
 701         lods    (%si), %eax
 702
 703 // CHECK: stosb # encoding: [0xaa]
 704 // CHECK: stosb
 705 // CHECK: stosb
 706         stosb
 707         stosb   %al, %es:(%di)
 708         stos    %al, %es:(%di)
 709
 710 // CHECK: stosw # encoding: [0xab]
 711 // CHECK: stosw
 712 // CHECK: stosw
 713         stosw
 714         stosw   %ax, %es:(%di)
 715         stos    %ax, %es:(%di)
 716
 717 // CHECK: stosl # encoding: [0x66,0xab]
 718 // CHECK: stosl
 719 // CHECK: stosl
 720         stosl
 721         stosl   %eax, %es:(%di)
 722         stos    %eax, %es:(%di)
 723
 724 // CHECK: strw
 725 // CHECK: encoding: [0x0f,0x00,0xc8]
 726         str %ax
 727
 728 // CHECK: strl
 729 // CHECK: encoding: [0x66,0x0f,0x00,0xc8]
 730         str %eax
 731
 732
 733 // CHECK: fsubp
 734 // CHECK: encoding: [0xde,0xe1]
 735 fsubp %st,%st(1)
 736
 737 // CHECK: fsubp %st(2)
 738 // CHECK: encoding: [0xde,0xe2]
 739 fsubp   %st, %st(2)
 740
 741 // CHECK: xchgl %eax, %eax
 742 // CHECK: encoding: [0x66,0x90]
 743 xchgl %eax, %eax
 744
 745 // CHECK: xchgw %ax, %ax
 746 // CHECK: encoding: [0x90]
 747 xchgw %ax, %ax
 748
 749 // CHECK: xchgl %ecx, %eax
 750 // CHECK: encoding: [0x66,0x91]
 751 xchgl %ecx, %eax
 752
 753 // CHECK: xchgl %ecx, %eax
 754 // CHECK: encoding: [0x66,0x91]
 755 xchgl %eax, %ecx