llvm-project/llvm/test/MC/X86/x86-64.s

1445 lines
31 KiB
ArmAsm

// RUN: llvm-mc -triple x86_64-unknown-unknown -show-encoding %s > %t 2> %t.err
// RUN: FileCheck < %t %s
// RUN: FileCheck --check-prefix=CHECK-STDERR < %t.err %s
monitor
// CHECK: monitor
// CHECK: encoding: [0x0f,0x01,0xc8]
monitor %rax, %rcx, %rdx
// CHECK: monitor
// CHECK: encoding: [0x0f,0x01,0xc8]
mwait
// CHECK: mwait
// CHECK: encoding: [0x0f,0x01,0xc9]
mwait %rax, %rcx
// CHECK: mwait
// CHECK: encoding: [0x0f,0x01,0xc9]
// Suffix inference:
// CHECK: addl $0, %eax
add $0, %eax
// CHECK: addb $255, %al
add $0xFF, %al
// CHECK: orq %rax, %rdx
or %rax, %rdx
// CHECK: shlq $3, %rax
shl $3, %rax
// CHECK: subb %al, %al
subb %al, %al
// CHECK: addl $24, %eax
addl $24, %eax
// CHECK: movl %eax, 10(%ebp)
movl %eax, 10(%ebp)
// CHECK: movl %eax, 10(%ebp,%ebx)
movl %eax, 10(%ebp, %ebx)
// CHECK: movl %eax, 10(%ebp,%ebx,4)
movl %eax, 10(%ebp, %ebx, 4)
// CHECK: movl %eax, 10(,%ebx,4)
movl %eax, 10(, %ebx, 4)
// CHECK: movl 0, %eax
movl 0, %eax
// CHECK: movl $0, %eax
movl $0, %eax
// CHECK: ret
ret
// CHECK: retw
retw
// FIXME: Check that this matches SUB32ri8
// CHECK: subl $1, %eax
subl $1, %eax
// FIXME: Check that this matches SUB32ri8
// CHECK: subl $-1, %eax
subl $-1, %eax
// FIXME: Check that this matches SUB32ri
// CHECK: subl $256, %eax
subl $256, %eax
// FIXME: Check that this matches XOR64ri8
// CHECK: xorq $1, %rax
xorq $1, %rax
// FIXME: Check that this matches XOR64ri32
// CHECK: xorq $256, %rax
xorq $256, %rax
// FIXME: Check that this matches SUB8rr
// CHECK: subb %al, %bl
subb %al, %bl
// FIXME: Check that this matches SUB16rr
// CHECK: subw %ax, %bx
subw %ax, %bx
// FIXME: Check that this matches SUB32rr
// CHECK: subl %eax, %ebx
subl %eax, %ebx
// FIXME: Check that this matches the correct instruction.
// CHECK: callq *%rax
call *%rax
// FIXME: Check that this matches the correct instruction.
// CHECK: shldl %cl, %eax, %ebx
shldl %cl, %eax, %ebx
// CHECK: shll $2, %eax
shll $2, %eax
// CHECK: shll $2, %eax
sall $2, %eax
// CHECK: rep
// CHECK: insb
rep;insb
// CHECK: rep
// CHECK: outsb
rep;outsb
// CHECK: rep
// CHECK: movsb
rep;movsb
// rdar://8470918
smovb // CHECK: movsb
smovw // CHECK: movsw
smovl // CHECK: movsl
smovq // CHECK: movsq
// rdar://8456361
// CHECK: rep
// CHECK: movsl
rep movsd
// CHECK: rep
// CHECK: lodsb
rep;lodsb
// CHECK: rep
// CHECK: stosb
rep;stosb
// NOTE: repz and repe have the same opcode as rep
// CHECK: rep
// CHECK: cmpsb
repz;cmpsb
// NOTE: repnz has the same opcode as repne
// CHECK: repne
// CHECK: cmpsb
repnz;cmpsb
// NOTE: repe and repz have the same opcode as rep
// CHECK: rep
// CHECK: scasb
repe;scasb
// CHECK: repne
// CHECK: scasb
repne;scasb
// CHECK: lock
// CHECK: cmpxchgb %al, (%ebx)
lock;cmpxchgb %al, 0(%ebx)
// CHECK: cs
// CHECK: movb (%eax), %al
cs;movb 0(%eax), %al
// CHECK: ss
// CHECK: movb (%eax), %al
ss;movb 0(%eax), %al
// CHECK: ds
// CHECK: movb (%eax), %al
ds;movb 0(%eax), %al
// CHECK: es
// CHECK: movb (%eax), %al
es;movb 0(%eax), %al
// CHECK: fs
// CHECK: movb (%eax), %al
fs;movb 0(%eax), %al
// CHECK: gs
// CHECK: movb (%eax), %al
gs;movb 0(%eax), %al
// CHECK: fadd %st(0)
// CHECK: fadd %st(1)
// CHECK: fadd %st(7)
fadd %st(0)
fadd %st(1)
fadd %st(7)
// CHECK: leal 0, %eax
leal 0, %eax
// rdar://7986634 - Insensitivity on opcodes.
// CHECK: int3
INT3
// rdar://8735979 - int $3 -> int3
// CHECK: int3
int $3
// Allow scale factor without index register.
// CHECK: movaps %xmm3, (%esi)
// CHECK-STDERR: warning: scale factor without index register is ignored
movaps %xmm3, (%esi, 2)
// CHECK: imull $12, %eax
imul $12, %eax
// CHECK: imull %ecx, %eax
imull %ecx, %eax
// rdar://8208481
// CHECK: outb %al, $161
outb %al, $161
// CHECK: outw %ax, $128
outw %ax, $128
// CHECK: inb $161, %al
inb $161, %al
// rdar://8017621
// CHECK: pushq $1
push $1
// rdar://9716860
pushq $1
// CHECK: encoding: [0x6a,0x01]
pushq $1111111
// CHECK: encoding: [0x68,0x47,0xf4,0x10,0x00]
// rdar://8017530
// CHECK: sldtw 4
sldt 4
// rdar://8208499
// CHECK: cmovnew %bx, %ax
cmovnz %bx, %ax
// CHECK: cmovneq %rbx, %rax
cmovnzq %rbx, %rax
// rdar://8407928
// CHECK: inb $127, %al
// CHECK: inw %dx, %ax
// CHECK: outb %al, $127
// CHECK: outw %ax, %dx
// CHECK: inl %dx, %eax
inb $0x7f
inw %dx
outb $0x7f
outw %dx
inl %dx
// PR8114
// CHECK: outb %al, %dx
// CHECK: outb %al, %dx
// CHECK: outw %ax, %dx
// CHECK: outw %ax, %dx
// CHECK: outl %eax, %dx
// CHECK: outl %eax, %dx
out %al, (%dx)
outb %al, (%dx)
out %ax, (%dx)
outw %ax, (%dx)
out %eax, (%dx)
outl %eax, (%dx)
// CHECK: inb %dx, %al
// CHECK: inb %dx, %al
// CHECK: inw %dx, %ax
// CHECK: inw %dx, %ax
// CHECK: inl %dx, %eax
// CHECK: inl %dx, %eax
in (%dx), %al
inb (%dx), %al
in (%dx), %ax
inw (%dx), %ax
in (%dx), %eax
inl (%dx), %eax
// rdar://8431422
// CHECK: fxch %st(1)
// CHECK: fucom %st(1)
// CHECK: fucomp %st(1)
// CHECK: faddp %st(1)
// CHECK: faddp %st(0)
// CHECK: fsubp %st(1)
// CHECK: fsubrp %st(1)
// CHECK: fmulp %st(1)
// CHECK: fdivp %st(1)
// CHECK: fdivrp %st(1)
fxch
fucom
fucomp
faddp
faddp %st
fsubp
fsubrp
fmulp
fdivp
fdivrp
// CHECK: fcomi %st(1)
// CHECK: fcomi %st(2)
// CHECK: fucomi %st(1)
// CHECK: fucomi %st(2)
// CHECK: fucomi %st(2)
fcomi
fcomi %st(2)
fucomi
fucomi %st(2)
fucomi %st(2), %st
// CHECK: fnstsw %ax
// CHECK: fnstsw %ax
// CHECK: fnstsw %ax
// CHECK: fnstsw %ax
fnstsw
fnstsw %ax
fnstsw %eax
fnstsw %al
// rdar://8431880
// CHECK: rclb %bl
// CHECK: rcll 3735928559(%ebx,%ecx,8)
// CHECK: rcrl %ecx
// CHECK: rcrl 305419896
rcl %bl
rcll 0xdeadbeef(%ebx,%ecx,8)
rcr %ecx
rcrl 0x12345678
rclb %bl // CHECK: rclb %bl # encoding: [0xd0,0xd3]
rclb $1, %bl // CHECK: rclb %bl # encoding: [0xd0,0xd3]
rclb $2, %bl // CHECK: rclb $2, %bl # encoding: [0xc0,0xd3,0x02]
// rdar://8418316
// PR12173
// CHECK: shldw %cl, %bx, %dx
// CHECK: shldw %cl, %bx, %dx
// CHECK: shldw $1, %bx, %dx
// CHECK: shldw %cl, %bx, (%rax)
// CHECK: shldw %cl, %bx, (%rax)
// CHECK: shrdw %cl, %bx, %dx
// CHECK: shrdw %cl, %bx, %dx
// CHECK: shrdw $1, %bx, %dx
// CHECK: shrdw %cl, %bx, (%rax)
// CHECK: shrdw %cl, %bx, (%rax)
shld %bx, %dx
shld %cl, %bx, %dx
shld $1, %bx, %dx
shld %bx, (%rax)
shld %cl, %bx, (%rax)
shrd %bx, %dx
shrd %cl, %bx, %dx
shrd $1, %bx, %dx
shrd %bx, (%rax)
shrd %cl, %bx, (%rax)
// CHECK: sldtl %ecx
// CHECK: encoding: [0x0f,0x00,0xc1]
// CHECK: sldtw %cx
// CHECK: encoding: [0x66,0x0f,0x00,0xc1]
sldt %ecx
sldt %cx
// CHECK: lcalll *3135175374
// CHECK: ljmpl *3135175374
lcall *0xbadeface
ljmp *0xbadeface
// rdar://8444631
// CHECK: enter $31438, $0
// CHECK: encoding: [0xc8,0xce,0x7a,0x00]
// CHECK: enter $31438, $1
// CHECK: encoding: [0xc8,0xce,0x7a,0x01]
// CHECK: enter $31438, $127
// CHECK: encoding: [0xc8,0xce,0x7a,0x7f]
enter $0x7ace,$0
enter $0x7ace,$1
enter $0x7ace,$0x7f
// rdar://8456364
// CHECK: movw %cs, %ax
mov %CS, %ax
// rdar://8456391
fcmovb %st(1), %st(0) // CHECK: fcmovb %st(1), %st(0)
fcmove %st(1), %st(0) // CHECK: fcmove %st(1), %st(0)
fcmovbe %st(1), %st(0) // CHECK: fcmovbe %st(1), %st(0)
fcmovu %st(1), %st(0) // CHECK: fcmovu %st(1), %st(0)
fcmovnb %st(1), %st(0) // CHECK: fcmovnb %st(1), %st(0)
fcmovne %st(1), %st(0) // CHECK: fcmovne %st(1), %st(0)
fcmovnbe %st(1), %st(0) // CHECK: fcmovnbe %st(1), %st(0)
fcmovnu %st(1), %st(0) // CHECK: fcmovnu %st(1), %st(0)
fcmovnae %st(1), %st(0) // CHECK: fcmovb %st(1), %st(0)
fcmovna %st(1), %st(0) // CHECK: fcmovbe %st(1), %st(0)
fcmovae %st(1), %st(0) // CHECK: fcmovnb %st(1), %st(0)
fcmova %st(1), %st(0) // CHECK: fcmovnbe %st(1), %st(0)
// rdar://8456417
.byte (88 + 1) & 15 // CHECK: .byte 9
// rdar://8456412
mov %rdx, %cr0
// CHECK: movq %rdx, %cr0
// CHECK: encoding: [0x0f,0x22,0xc2]
mov %rdx, %cr4
// CHECK: movq %rdx, %cr4
// CHECK: encoding: [0x0f,0x22,0xe2]
mov %rdx, %cr8
// CHECK: movq %rdx, %cr8
// CHECK: encoding: [0x44,0x0f,0x22,0xc2]
mov %rdx, %cr15
// CHECK: movq %rdx, %cr15
// CHECK: encoding: [0x44,0x0f,0x22,0xfa]
// rdar://8456371 - Handle commutable instructions written backward.
// CHECK: faddp %st(1)
// CHECK: fmulp %st(2)
faddp %st, %st(1)
fmulp %st, %st(2)
// rdar://8468087 - Encode these accurately, they are not synonyms.
// CHECK: fmul %st(0), %st(1)
// CHECK: encoding: [0xdc,0xc9]
// CHECK: fmul %st(1)
// CHECK: encoding: [0xd8,0xc9]
fmul %st, %st(1)
fmul %st(1), %st
// CHECK: fadd %st(0), %st(1)
// CHECK: encoding: [0xdc,0xc1]
// CHECK: fadd %st(1)
// CHECK: encoding: [0xd8,0xc1]
fadd %st, %st(1)
fadd %st(1), %st
// rdar://8416805
// CHECK: xorb %al, %al
// CHECK: encoding: [0x30,0xc0]
// CHECK: xorw %di, %di
// CHECK: encoding: [0x66,0x31,0xff]
// CHECK: xorl %esi, %esi
// CHECK: encoding: [0x31,0xf6]
// CHECK: xorq %rsi, %rsi
// CHECK: encoding: [0x48,0x31,0xf6]
clrb %al
clr %di
clr %esi
clr %rsi
// rdar://8456378
cltq // CHECK: cltq
cdqe // CHECK: cltq
cwde // CHECK: cwtl
cwtl // CHECK: cwtl
// rdar://8416805
cbw // CHECK: cbtw
cwd // CHECK: cwtd
cdq // CHECK: cltd
cqo // CHECK: cqto
// rdar://8456378 and PR7557 - fstsw
fstsw %ax
// CHECK: wait
// CHECK: fnstsw
fstsw (%rax)
// CHECK: wait
// CHECK: fnstsw (%rax)
// PR8259
fstcw (%rsp)
// CHECK: wait
// CHECK: fnstcw (%rsp)
// PR8259
fstcw (%rsp)
// CHECK: wait
// CHECK: fnstcw (%rsp)
// PR8258
finit
// CHECK: wait
// CHECK: fninit
fsave 32493
// CHECK: wait
// CHECK: fnsave 32493
// rdar://8456382 - cvtsd2si support.
cvtsd2si %xmm1, %rax
// CHECK: cvtsd2si %xmm1, %rax
// CHECK: encoding: [0xf2,0x48,0x0f,0x2d,0xc1]
cvtsd2si %xmm1, %eax
// CHECK: cvtsd2si %xmm1, %eax
// CHECK: encoding: [0xf2,0x0f,0x2d,0xc1]
cvtsd2siq %xmm0, %rax // CHECK: cvtsd2si %xmm0, %rax
cvtsd2sil %xmm0, %eax // CHECK: cvtsd2si %xmm0, %eax
cvtsd2si %xmm0, %rax // CHECK: cvtsd2si %xmm0, %rax
cvttpd2dq %xmm1, %xmm0 // CHECK: cvttpd2dq %xmm1, %xmm0
cvttpd2dq (%rax), %xmm0 // CHECK: cvttpd2dq (%rax), %xmm0
cvttps2dq %xmm1, %xmm0 // CHECK: cvttps2dq %xmm1, %xmm0
cvttps2dq (%rax), %xmm0 // CHECK: cvttps2dq (%rax), %xmm0
// rdar://8456376 - llvm-mc rejects 'roundss'
roundss $0xE, %xmm0, %xmm0 // CHECK: encoding: [0x66,0x0f,0x3a,0x0a,0xc0,0x0e]
roundps $0xE, %xmm0, %xmm0 // CHECK: encoding: [0x66,0x0f,0x3a,0x08,0xc0,0x0e]
roundsd $0xE, %xmm0, %xmm0 // CHECK: encoding: [0x66,0x0f,0x3a,0x0b,0xc0,0x0e]
roundpd $0xE, %xmm0, %xmm0 // CHECK: encoding: [0x66,0x0f,0x3a,0x09,0xc0,0x0e]
// rdar://8482675 - 32-bit mem operand support in 64-bit mode (0x67 prefix)
leal 8(%eax), %esi
// CHECK: leal 8(%eax), %esi
// CHECK: encoding: [0x67,0x8d,0x70,0x08]
leaq 8(%eax), %rsi
// CHECK: leaq 8(%eax), %rsi
// CHECK: encoding: [0x67,0x48,0x8d,0x70,0x08]
leaq 8(%rax), %rsi
// CHECK: leaq 8(%rax), %rsi
// CHECK: encoding: [0x48,0x8d,0x70,0x08]
cvttpd2dq 0xdeadbeef(%ebx,%ecx,8),%xmm5
// CHECK: cvttpd2dq 3735928559(%ebx,%ecx,8), %xmm5
// CHECK: encoding: [0x67,0x66,0x0f,0xe6,0xac,0xcb,0xef,0xbe,0xad,0xde]
// rdar://8490728 - llvm-mc rejects 'movmskpd'
movmskpd %xmm6, %rax
// CHECK: movmskpd %xmm6, %eax
// CHECK: encoding: [0x66,0x0f,0x50,0xc6]
movmskpd %xmm6, %eax
// CHECK: movmskpd %xmm6, %eax
// CHECK: encoding: [0x66,0x0f,0x50,0xc6]
// rdar://8491845 - Gas supports commuted forms of non-commutable instructions.
fdivrp %st(0), %st(1) // CHECK: encoding: [0xde,0xf9]
fdivrp %st(1), %st(0) // CHECK: encoding: [0xde,0xf9]
fsubrp %ST(0), %ST(1) // CHECK: encoding: [0xde,0xe9]
fsubrp %ST(1), %ST(0) // CHECK: encoding: [0xde,0xe9]
// also PR8861
fdivp %st(0), %st(1) // CHECK: encoding: [0xde,0xf1]
fdivp %st(1), %st(0) // CHECK: encoding: [0xde,0xf1]
movl foo(%rip), %eax
// CHECK: movl foo(%rip), %eax
// CHECK: encoding: [0x8b,0x05,A,A,A,A]
// CHECK: fixup A - offset: 2, value: foo-4, kind: reloc_riprel_4byte
movb $12, foo(%rip)
// CHECK: movb $12, foo(%rip)
// CHECK: encoding: [0xc6,0x05,A,A,A,A,0x0c]
// CHECK: fixup A - offset: 2, value: foo-5, kind: reloc_riprel_4byte
movw $12, foo(%rip)
// CHECK: movw $12, foo(%rip)
// CHECK: encoding: [0x66,0xc7,0x05,A,A,A,A,0x0c,0x00]
// CHECK: fixup A - offset: 3, value: foo-6, kind: reloc_riprel_4byte
movl $12, foo(%rip)
// CHECK: movl $12, foo(%rip)
// CHECK: encoding: [0xc7,0x05,A,A,A,A,0x0c,0x00,0x00,0x00]
// CHECK: fixup A - offset: 2, value: foo-8, kind: reloc_riprel_4byte
movq $12, foo(%rip)
// CHECK: movq $12, foo(%rip)
// CHECK: encoding: [0x48,0xc7,0x05,A,A,A,A,0x0c,0x00,0x00,0x00]
// CHECK: fixup A - offset: 3, value: foo-8, kind: reloc_riprel_4byte
movl foo(%eip), %eax
// CHECK: movl foo(%eip), %eax
// CHECK: encoding: [0x67,0x8b,0x05,A,A,A,A]
// CHECK: fixup A - offset: 3, value: foo-4, kind: reloc_riprel_4byte
movb $12, foo(%eip)
// CHECK: movb $12, foo(%eip)
// CHECK: encoding: [0x67,0xc6,0x05,A,A,A,A,0x0c]
// CHECK: fixup A - offset: 3, value: foo-5, kind: reloc_riprel_4byte
movw $12, foo(%eip)
// CHECK: movw $12, foo(%eip)
// CHECK: encoding: [0x67,0x66,0xc7,0x05,A,A,A,A,0x0c,0x00]
// CHECK: fixup A - offset: 4, value: foo-6, kind: reloc_riprel_4byte
movl $12, foo(%eip)
// CHECK: movl $12, foo(%eip)
// CHECK: encoding: [0x67,0xc7,0x05,A,A,A,A,0x0c,0x00,0x00,0x00]
// CHECK: fixup A - offset: 3, value: foo-8, kind: reloc_riprel_4byte
movq $12, foo(%eip)
// CHECK: movq $12, foo(%eip)
// CHECK: encoding: [0x67,0x48,0xc7,0x05,A,A,A,A,0x0c,0x00,0x00,0x00]
// CHECK: fixup A - offset: 4, value: foo-8, kind: reloc_riprel_4byte
// CHECK: addq $-424, %rax
// CHECK: encoding: [0x48,0x05,0x58,0xfe,0xff,0xff]
addq $-424, %rax
// CHECK: movq _foo@GOTPCREL(%rip), %rax
// CHECK: encoding: [0x48,0x8b,0x05,A,A,A,A]
// CHECK: fixup A - offset: 3, value: _foo@GOTPCREL-4, kind: reloc_riprel_4byte_movq_load
movq _foo@GOTPCREL(%rip), %rax
// CHECK: movq _foo@GOTPCREL(%rip), %r14
// CHECK: encoding: [0x4c,0x8b,0x35,A,A,A,A]
// CHECK: fixup A - offset: 3, value: _foo@GOTPCREL-4, kind: reloc_riprel_4byte_movq_load
movq _foo@GOTPCREL(%rip), %r14
// CHECK: movq _foo@GOTPCREL(%eip), %rax
// CHECK: encoding: [0x67,0x48,0x8b,0x05,A,A,A,A]
// CHECK: fixup A - offset: 4, value: _foo@GOTPCREL-4, kind: reloc_riprel_4byte_movq_load
movq _foo@GOTPCREL(%eip), %rax
// CHECK: movq _foo@GOTPCREL(%eip), %r14
// CHECK: encoding: [0x67,0x4c,0x8b,0x35,A,A,A,A]
// CHECK: fixup A - offset: 4, value: _foo@GOTPCREL-4, kind: reloc_riprel_4byte_movq_load
movq _foo@GOTPCREL(%eip), %r14
// CHECK: movq (%r13,%rax,8), %r13
// CHECK: encoding: [0x4d,0x8b,0x6c,0xc5,0x00]
movq 0x00(%r13,%rax,8),%r13
// CHECK: testq %rax, %rbx
// CHECK: encoding: [0x48,0x85,0xc3]
testq %rax, %rbx
// CHECK: cmpq %rbx, %r14
// CHECK: encoding: [0x49,0x39,0xde]
cmpq %rbx, %r14
// rdar://7947167
movsq
// CHECK: movsq
// CHECK: encoding: [0x48,0xa5]
movsl
// CHECK: movsl
// CHECK: encoding: [0xa5]
stosq
// CHECK: stosq
// CHECK: encoding: [0x48,0xab]
stosl
// CHECK: stosl
// CHECK: encoding: [0xab]
// Not moffset forms of moves, they are x86-32 only! rdar://7947184
movb 0, %al // CHECK: movb 0, %al # encoding: [0x8a,0x04,0x25,0x00,0x00,0x00,0x00]
movw 0, %ax // CHECK: movw 0, %ax # encoding: [0x66,0x8b,0x04,0x25,0x00,0x00,0x00,0x00]
movl 0, %eax // CHECK: movl 0, %eax # encoding: [0x8b,0x04,0x25,0x00,0x00,0x00,0x00]
// CHECK: pushfq # encoding: [0x9c]
pushf
// CHECK: pushfq # encoding: [0x9c]
pushfq
// CHECK: popfq # encoding: [0x9d]
popf
// CHECK: popfq # encoding: [0x9d]
popfq
// CHECK: movabsq $-281474976710654, %rax
// CHECK: encoding: [0x48,0xb8,0x02,0x00,0x00,0x00,0x00,0x00,0xff,0xff]
movabsq $0xFFFF000000000002, %rax
// CHECK: movabsq $-281474976710654, %rax
// CHECK: encoding: [0x48,0xb8,0x02,0x00,0x00,0x00,0x00,0x00,0xff,0xff]
movq $0xFFFF000000000002, %rax
// CHECK: movq $-65536, %rax
// CHECK: encoding: [0x48,0xc7,0xc0,0x00,0x00,0xff,0xff]
movq $0xFFFFFFFFFFFF0000, %rax
// CHECK: movq $-256, %rax
// CHECK: encoding: [0x48,0xc7,0xc0,0x00,0xff,0xff,0xff]
movq $0xFFFFFFFFFFFFFF00, %rax
// CHECK: movq $10, %rax
// CHECK: encoding: [0x48,0xc7,0xc0,0x0a,0x00,0x00,0x00]
movq $10, %rax
// CHECK: movabsb -6066930261531658096, %al
// CHECK: encoding: [0xa0,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsb 0xabcdef1234567890,%al
// CHECK: movabsw -6066930261531658096, %ax
// CHECK: encoding: [0x66,0xa1,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsw 0xabcdef1234567890,%ax
// CHECK: movabsl -6066930261531658096, %eax
// CHECK: encoding: [0xa1,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsl 0xabcdef1234567890,%eax
// CHECK: movabsq -6066930261531658096, %rax
// CHECK: encoding: [0x48,0xa1,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsq 0xabcdef1234567890, %rax
// CHECK: movabsb %al, -6066930261531658096
// CHECK: encoding: [0xa2,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsb %al,0xabcdef1234567890
// CHECK: movabsw %ax, -6066930261531658096
// CHECK: encoding: [0x66,0xa3,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsw %ax,0xabcdef1234567890
// CHECK: movabsl %eax, -6066930261531658096
// CHECK: encoding: [0xa3,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsl %eax,0xabcdef1234567890
// CHECK: movabsq %rax, -6066930261531658096
// CHECK: encoding: [0x48,0xa3,0x90,0x78,0x56,0x34,0x12,0xef,0xcd,0xab]
movabsq %rax,0xabcdef1234567890
// rdar://8014869
//
// CHECK: ret
// CHECK: encoding: [0xc3]
retq
// CHECK: sete %al
// CHECK: encoding: [0x0f,0x94,0xc0]
setz %al
// CHECK: setne %al
// CHECK: encoding: [0x0f,0x95,0xc0]
setnz %al
// CHECK: je 0
// CHECK: encoding: [0x74,A]
jz 0
// CHECK: jne
// CHECK: encoding: [0x75,A]
jnz 0
// PR9264
btl $1, 0 // CHECK: btl $1, 0 # encoding: [0x0f,0xba,0x24,0x25,0x00,0x00,0x00,0x00,0x01]
bt $1, 0 // CHECK: btl $1, 0 # encoding: [0x0f,0xba,0x24,0x25,0x00,0x00,0x00,0x00,0x01]
// rdar://8017515
btq $0x01,%rdx
// CHECK: btq $1, %rdx
// CHECK: encoding: [0x48,0x0f,0xba,0xe2,0x01]
//rdar://8017633
// CHECK: movzbl %al, %esi
// CHECK: encoding: [0x0f,0xb6,0xf0]
movzx %al, %esi
// CHECK: movzbq %al, %rsi
// CHECK: encoding: [0x48,0x0f,0xb6,0xf0]
movzx %al, %rsi
// CHECK: movsbw %al, %ax
// CHECK: encoding: [0x66,0x0f,0xbe,0xc0]
movsx %al, %ax
// CHECK: movsbl %al, %eax
// CHECK: encoding: [0x0f,0xbe,0xc0]
movsx %al, %eax
// CHECK: movswl %ax, %eax
// CHECK: encoding: [0x0f,0xbf,0xc0]
movsx %ax, %eax
// CHECK: movsbq %bl, %rax
// CHECK: encoding: [0x48,0x0f,0xbe,0xc3]
movsx %bl, %rax
// CHECK: movswq %cx, %rax
// CHECK: encoding: [0x48,0x0f,0xbf,0xc1]
movsx %cx, %rax
// CHECK: movslq %edi, %rax
// CHECK: encoding: [0x48,0x63,0xc7]
movsx %edi, %rax
// CHECK: movzbw %al, %ax
// CHECK: encoding: [0x66,0x0f,0xb6,0xc0]
movzx %al, %ax
// CHECK: movzbl %al, %eax
// CHECK: encoding: [0x0f,0xb6,0xc0]
movzx %al, %eax
// CHECK: movzwl %ax, %eax
// CHECK: encoding: [0x0f,0xb7,0xc0]
movzx %ax, %eax
// CHECK: movzbq %bl, %rax
// CHECK: encoding: [0x48,0x0f,0xb6,0xc3]
movzx %bl, %rax
// CHECK: movzwq %cx, %rax
// CHECK: encoding: [0x48,0x0f,0xb7,0xc1]
movzx %cx, %rax
// CHECK: movsbw (%rax), %ax
// CHECK: encoding: [0x66,0x0f,0xbe,0x00]
movsx (%rax), %ax
// CHECK: movzbw (%rax), %ax
// CHECK: encoding: [0x66,0x0f,0xb6,0x00]
movzx (%rax), %ax
// rdar://7873482
// CHECK: [0x65,0x8b,0x04,0x25,0x7c,0x00,0x00,0x00]
movl %gs:124, %eax
// CHECK: jmpq *8(%rax)
// CHECK: encoding: [0xff,0x60,0x08]
jmp *8(%rax)
// CHECK: btq $61, -216(%rbp)
// CHECK: encoding: [0x48,0x0f,0xba,0xa5,0x28,0xff,0xff,0xff,0x3d]
btq $61, -216(%rbp)
// rdar://8061602
L1:
jecxz L1
// CHECK: jecxz L1
// CHECK: encoding: [0x67,0xe3,A]
jrcxz L1
// CHECK: jrcxz L1
// CHECK: encoding: [0xe3,A]
// PR8061
xchgl 368(%rax),%ecx
// CHECK: xchgl %ecx, 368(%rax)
xchgl %ecx, 368(%rax)
// CHECK: xchgl %ecx, 368(%rax)
// rdar://8407548
xchg 0xdeadbeef(%rbx,%rcx,8),%bl
// CHECK: xchgb %bl, 3735928559(%rbx,%rcx,8)
// PR7254
lock incl 1(%rsp)
// CHECK: lock
// CHECK: incl 1(%rsp)
// rdar://8741045
lock/incl 1(%rsp)
// CHECK: lock
// CHECK: incl 1(%rsp)
// rdar://8033482
rep movsl
// CHECK: rep
// CHECK: encoding: [0xf3]
// CHECK: movsl
// CHECK: encoding: [0xa5]
// rdar://8403974
iret
// CHECK: iretl
// CHECK: encoding: [0xcf]
iretw
// CHECK: iretw
// CHECK: encoding: [0x66,0xcf]
iretl
// CHECK: iretl
// CHECK: encoding: [0xcf]
iretq
// CHECK: iretq
// CHECK: encoding: [0x48,0xcf]
// rdar://8416805
// CHECK: retw $31438
// CHECK: encoding: [0x66,0xc2,0xce,0x7a]
retw $0x7ace
// CHECK: lretw $31438
// CHECK: encoding: [0x66,0xca,0xce,0x7a]
lretw $0x7ace
// PR8592
lretq // CHECK: lretq # encoding: [0x48,0xcb]
lretl // CHECK: lretl # encoding: [0xcb]
lret // CHECK: lretl # encoding: [0xcb]
lretw // CHECK: lretw # encoding: [0x66,0xcb]
// rdar://8403907
sysret
// CHECK: sysretl
// CHECK: encoding: [0x0f,0x07]
sysretl
// CHECK: sysretl
// CHECK: encoding: [0x0f,0x07]
sysretq
// CHECK: sysretq
// CHECK: encoding: [0x48,0x0f,0x07]
// rdar://8407242
push %fs
// CHECK: pushq %fs
// CHECK: encoding: [0x0f,0xa0]
push %gs
// CHECK: pushq %gs
// CHECK: encoding: [0x0f,0xa8]
pushw %fs
// CHECK: pushw %fs
// CHECK: encoding: [0x66,0x0f,0xa0]
pushw %gs
// CHECK: pushw %gs
// CHECK: encoding: [0x66,0x0f,0xa8]
pop %fs
// CHECK: popq %fs
// CHECK: encoding: [0x0f,0xa1]
pop %gs
// CHECK: popq %gs
// CHECK: encoding: [0x0f,0xa9]
popw %fs
// CHECK: popw %fs
// CHECK: encoding: [0x66,0x0f,0xa1]
popw %gs
// CHECK: popw %gs
// CHECK: encoding: [0x66,0x0f,0xa9]
// rdar://8438816
fildq -8(%rsp)
fildll -8(%rsp)
// CHECK: fildll -8(%rsp)
// CHECK: encoding: [0xdf,0x6c,0x24,0xf8]
// CHECK: fildll -8(%rsp)
// CHECK: encoding: [0xdf,0x6c,0x24,0xf8]
// CHECK: callq a
callq a
// CHECK: leaq -40(%rbp), %r15
leaq -40(%rbp), %r15
// rdar://8013734 - Alias dr6=db6
mov %dr6, %rax
mov %db6, %rax
// CHECK: movq %dr6, %rax
// CHECK: movq %dr6, %rax
// INC/DEC encodings.
incb %al // CHECK: incb %al # encoding: [0xfe,0xc0]
incw %ax // CHECK: incw %ax # encoding: [0x66,0xff,0xc0]
incl %eax // CHECK: incl %eax # encoding: [0xff,0xc0]
decb %al // CHECK: decb %al # encoding: [0xfe,0xc8]
decw %ax // CHECK: decw %ax # encoding: [0x66,0xff,0xc8]
decl %eax // CHECK: decl %eax # encoding: [0xff,0xc8]
// rdar://8416805
// CHECK: lgdtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x50,0x04]
lgdt 4(%rax)
// CHECK: lgdtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x50,0x04]
lgdtq 4(%rax)
// CHECK: lidtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x58,0x04]
lidt 4(%rax)
// CHECK: lidtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x58,0x04]
lidtq 4(%rax)
// CHECK: sgdtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x40,0x04]
sgdt 4(%rax)
// CHECK: sgdtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x40,0x04]
sgdtq 4(%rax)
// CHECK: sidtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x48,0x04]
sidt 4(%rax)
// CHECK: sidtq 4(%rax)
// CHECK: encoding: [0x0f,0x01,0x48,0x04]
sidtq 4(%rax)
// rdar://8208615
mov (%rsi), %gs // CHECK: movl (%rsi), %gs # encoding: [0x8e,0x2e]
mov %gs, (%rsi) // CHECK: movl %gs, (%rsi) # encoding: [0x8c,0x2e]
// rdar://8431864
//CHECK: divb %bl
//CHECK: divw %bx
//CHECK: divl %ecx
//CHECK: divl 3735928559(%ebx,%ecx,8)
//CHECK: divl 69
//CHECK: divl 32493
//CHECK: divl 3133065982
//CHECK: divl 305419896
//CHECK: idivb %bl
//CHECK: idivw %bx
//CHECK: idivl %ecx
//CHECK: idivl 3735928559(%ebx,%ecx,8)
//CHECK: idivl 69
//CHECK: idivl 32493
//CHECK: idivl 3133065982
//CHECK: idivl 305419896
div %bl,%al
div %bx,%ax
div %ecx,%eax
div 0xdeadbeef(%ebx,%ecx,8),%eax
div 0x45,%eax
div 0x7eed,%eax
div 0xbabecafe,%eax
div 0x12345678,%eax
idiv %bl,%al
idiv %bx,%ax
idiv %ecx,%eax
idiv 0xdeadbeef(%ebx,%ecx,8),%eax
idiv 0x45,%eax
idiv 0x7eed,%eax
idiv 0xbabecafe,%eax
idiv 0x12345678,%eax
// PR8524
movd %rax, %mm5 // CHECK: movd %rax, %mm5 # encoding: [0x48,0x0f,0x6e,0xe8]
movd %mm5, %rbx // CHECK: movd %mm5, %rbx # encoding: [0x48,0x0f,0x7e,0xeb]
movq %rax, %mm5 // CHECK: movd %rax, %mm5 # encoding: [0x48,0x0f,0x6e,0xe8]
movq %mm5, %rbx // CHECK: movd %mm5, %rbx # encoding: [0x48,0x0f,0x7e,0xeb]
rex64 // CHECK: rex64 # encoding: [0x48]
data16 // CHECK: data16 # encoding: [0x66]
// PR8855
movq 18446744073709551615,%rbx // CHECK: movq -1, %rbx
// PR8946
movdqu %xmm0, %xmm1 // CHECK: movdqu %xmm0, %xmm1 # encoding: [0xf3,0x0f,0x6f,0xc8]
// PR8935
xgetbv // CHECK: xgetbv # encoding: [0x0f,0x01,0xd0]
xsetbv // CHECK: xsetbv # encoding: [0x0f,0x01,0xd1]
// CHECK: loope 0
// CHECK: encoding: [0xe1,A]
loopz 0
// CHECK: loopne 0
// CHECK: encoding: [0xe0,A]
loopnz 0
// CHECK: outsb (%rsi), %dx # encoding: [0x6e]
// CHECK: outsb
// CHECK: outsb
outsb
outsb %ds:(%rsi), %dx
outsb (%rsi), %dx
// CHECK: outsw (%rsi), %dx # encoding: [0x66,0x6f]
// CHECK: outsw
// CHECK: outsw
outsw
outsw %ds:(%rsi), %dx
outsw (%rsi), %dx
// CHECK: outsl (%rsi), %dx # encoding: [0x6f]
// CHECK: outsl
outsl
outsl %ds:(%rsi), %dx
outsl (%rsi), %dx
// CHECK: insb %dx, %es:(%rdi) # encoding: [0x6c]
// CHECK: insb
insb
insb %dx, %es:(%rdi)
// CHECK: insw %dx, %es:(%rdi) # encoding: [0x66,0x6d]
// CHECK: insw
insw
insw %dx, %es:(%rdi)
// CHECK: insl %dx, %es:(%rdi) # encoding: [0x6d]
// CHECK: insl
insl
insl %dx, %es:(%rdi)
// CHECK: movsb (%rsi), %es:(%rdi) # encoding: [0xa4]
// CHECK: movsb
// CHECK: movsb
movsb
movsb %ds:(%rsi), %es:(%rdi)
movsb (%rsi), %es:(%rdi)
// CHECK: movsw (%rsi), %es:(%rdi) # encoding: [0x66,0xa5]
// CHECK: movsw
// CHECK: movsw
movsw
movsw %ds:(%rsi), %es:(%rdi)
movsw (%rsi), %es:(%rdi)
// CHECK: movsl (%rsi), %es:(%rdi) # encoding: [0xa5]
// CHECK: movsl
// CHECK: movsl
movsl
movsl %ds:(%rsi), %es:(%rdi)
movsl (%rsi), %es:(%rdi)
// rdar://10883092
// CHECK: movsl
movsl (%rsi), (%rdi)
// CHECK: movsq (%rsi), %es:(%rdi) # encoding: [0x48,0xa5]
// CHECK: movsq
// CHECK: movsq
movsq
movsq %ds:(%rsi), %es:(%rdi)
movsq (%rsi), %es:(%rdi)
// CHECK: lodsb (%rsi), %al # encoding: [0xac]
// CHECK: lodsb
// CHECK: lodsb
// CHECK: lodsb
// CHECK: lodsb
lodsb
lodsb %ds:(%rsi), %al
lodsb (%rsi), %al
lods %ds:(%rsi), %al
lods (%rsi), %al
// CHECK: lodsw (%rsi), %ax # encoding: [0x66,0xad]
// CHECK: lodsw
// CHECK: lodsw
// CHECK: lodsw
// CHECK: lodsw
lodsw
lodsw %ds:(%rsi), %ax
lodsw (%rsi), %ax
lods %ds:(%rsi), %ax
lods (%rsi), %ax
// CHECK: lodsl (%rsi), %eax # encoding: [0xad]
// CHECK: lodsl
// CHECK: lodsl
// CHECK: lodsl
// CHECK: lodsl
lodsl
lodsl %ds:(%rsi), %eax
lodsl (%rsi), %eax
lods %ds:(%rsi), %eax
lods (%rsi), %eax
// CHECK: lodsq (%rsi), %rax # encoding: [0x48,0xad]
// CHECK: lodsq
// CHECK: lodsq
// CHECK: lodsq
// CHECK: lodsq
lodsq
lodsq %ds:(%rsi), %rax
lodsq (%rsi), %rax
lods %ds:(%rsi), %rax
lods (%rsi), %rax
// CHECK: stosb %al, %es:(%rdi) # encoding: [0xaa]
// CHECK: stosb
// CHECK: stosb
stosb
stosb %al, %es:(%rdi)
stos %al, %es:(%rdi)
// CHECK: stosw %ax, %es:(%rdi) # encoding: [0x66,0xab]
// CHECK: stosw
// CHECK: stosw
stosw
stosw %ax, %es:(%rdi)
stos %ax, %es:(%rdi)
// CHECK: stosl %eax, %es:(%rdi) # encoding: [0xab]
// CHECK: stosl
// CHECK: stosl
stosl
stosl %eax, %es:(%rdi)
stos %eax, %es:(%rdi)
// CHECK: stosq %rax, %es:(%rdi) # encoding: [0x48,0xab]
// CHECK: stosq
// CHECK: stosq
stosq
stosq %rax, %es:(%rdi)
stos %rax, %es:(%rdi)
// CHECK: strw
// CHECK: encoding: [0x66,0x0f,0x00,0xc8]
str %ax
// CHECK: strl
// CHECK: encoding: [0x0f,0x00,0xc8]
str %eax
// CHECK: strw
// CHECK: encoding: [0x66,0x0f,0x00,0xc8]
str %ax
// CHECK: strq
// CHECK: encoding: [0x48,0x0f,0x00,0xc8]
str %rax
// CHECK: movd %rdi, %xmm0
// CHECK: encoding: [0x66,0x48,0x0f,0x6e,0xc7]
movq %rdi,%xmm0
// CHECK: movd %rdi, %xmm0
// CHECK: encoding: [0x66,0x48,0x0f,0x6e,0xc7]
movd %rdi,%xmm0
// CHECK: movd %xmm0, %rax
// CHECK: encoding: [0x66,0x48,0x0f,0x7e,0xc0]
movd %xmm0, %rax
// CHECK: movntil %eax, (%rdi)
// CHECK: encoding: [0x0f,0xc3,0x07]
// CHECK: movntil
movntil %eax, (%rdi)
movnti %eax, (%rdi)
// CHECK: movntiq %rax, (%rdi)
// CHECK: encoding: [0x48,0x0f,0xc3,0x07]
// CHECK: movntiq
movntiq %rax, (%rdi)
movnti %rax, (%rdi)
// CHECK: pclmulqdq $17, %xmm0, %xmm1
// CHECK: encoding: [0x66,0x0f,0x3a,0x44,0xc8,0x11]
pclmulhqhqdq %xmm0, %xmm1
// CHECK: pclmulqdq $1, %xmm0, %xmm1
// CHECK: encoding: [0x66,0x0f,0x3a,0x44,0xc8,0x01]
pclmulqdq $1, %xmm0, %xmm1
// CHECK: pclmulqdq $16, (%rdi), %xmm1
// CHECK: encoding: [0x66,0x0f,0x3a,0x44,0x0f,0x10]
pclmullqhqdq (%rdi), %xmm1
// CHECK: pclmulqdq $0, (%rdi), %xmm1
// CHECK: encoding: [0x66,0x0f,0x3a,0x44,0x0f,0x00]
pclmulqdq $0, (%rdi), %xmm1
// PR10345
// CHECK: xchgq %rax, %rax
// CHECK: encoding: [0x48,0x90]
xchgq %rax, %rax
// CHECK: xchgl %eax, %eax
// CHECK: encoding: [0x87,0xc0]
xchgl %eax, %eax
// CHECK: xchgw %ax, %ax
// CHECK: encoding: [0x66,0x90]
xchgw %ax, %ax
// CHECK: xchgl %ecx, %eax
// CHECK: encoding: [0x91]
xchgl %ecx, %eax
// CHECK: xchgl %ecx, %eax
// CHECK: encoding: [0x91]
xchgl %eax, %ecx
// CHECK: sysexit
// CHECK: encoding: [0x0f,0x35]
sysexit
// CHECK: sysexitl
// CHECK: encoding: [0x0f,0x35]
sysexitl
// CHECK: sysexitq
// CHECK: encoding: [0x48,0x0f,0x35]
sysexitq
// CHECK: clac
// CHECK: encoding: [0x0f,0x01,0xca]
clac
// CHECK: stac
// CHECK: encoding: [0x0f,0x01,0xcb]
stac
// CHECK: faddp %st(1)
// CHECK: fmulp %st(1)
// CHECK: fsubp %st(1)
// CHECK: fsubrp %st(1)
// CHECK: fdivp %st(1)
// CHECK: fdivrp %st(1)
faddp %st(0), %st(1)
fmulp %st(0), %st(1)
fsubp %st(0), %st(1)
fsubrp %st(0), %st(1)
fdivp %st(0), %st(1)
fdivrp %st(0), %st(1)
// CHECK: faddp %st(1)
// CHECK: fmulp %st(1)
// CHECK: fsubp %st(1)
// CHECK: fsubrp %st(1)
// CHECK: fdivp %st(1)
// CHECK: fdivrp %st(1)
faddp %st(1), %st(0)
fmulp %st(1), %st(0)
fsubp %st(1), %st(0)
fsubrp %st(1), %st(0)
fdivp %st(1), %st(0)
fdivrp %st(1), %st(0)
// CHECK: faddp %st(1)
// CHECK: fmulp %st(1)
// CHECK: fsubp %st(1)
// CHECK: fsubrp %st(1)
// CHECK: fdivp %st(1)
// CHECK: fdivrp %st(1)
faddp %st(1)
fmulp %st(1)
fsubp %st(1)
fsubrp %st(1)
fdivp %st(1)
fdivrp %st(1)
// CHECK: faddp %st(1)
// CHECK: fmulp %st(1)
// CHECK: fsubp %st(1)
// CHECK: fsubrp %st(1)
// CHECK: fdivp %st(1)
// CHECK: fdivrp %st(1)
faddp
fmulp
fsubp
fsubrp
fdivp
fdivrp
// CHECK: fadd %st(1)
// CHECK: fmul %st(1)
// CHECK: fsub %st(1)
// CHECK: fsubr %st(1)
// CHECK: fdiv %st(1)
// CHECK: fdivr %st(1)
fadd %st(1), %st(0)
fmul %st(1), %st(0)
fsub %st(1), %st(0)
fsubr %st(1), %st(0)
fdiv %st(1), %st(0)
fdivr %st(1), %st(0)
// CHECK: fadd %st(0), %st(1)
// CHECK: fmul %st(0), %st(1)
// CHECK: fsub %st(0), %st(1)
// CHECK: fsubr %st(0), %st(1)
// CHECK: fdiv %st(0), %st(1)
// CHECK: fdivr %st(0), %st(1)
fadd %st(0), %st(1)
fmul %st(0), %st(1)
fsub %st(0), %st(1)
fsubr %st(0), %st(1)
fdiv %st(0), %st(1)
fdivr %st(0), %st(1)
// CHECK: fadd %st(1)
// CHECK: fmul %st(1)
// CHECK: fsub %st(1)
// CHECK: fsubr %st(1)
// CHECK: fdiv %st(1)
// CHECK: fdivr %st(1)
fadd %st(1)
fmul %st(1)
fsub %st(1)
fsubr %st(1)
fdiv %st(1)
fdivr %st(1)
// CHECK: movd %xmm0, %eax
// CHECK: movd %xmm0, %rax
// CHECK: movd %xmm0, %rax
// CHECK: vmovd %xmm0, %eax
// CHECK: vmovq %xmm0, %rax
// CHECK: vmovq %xmm0, %rax
movd %xmm0, %eax
movd %xmm0, %rax
movq %xmm0, %rax
vmovd %xmm0, %eax
vmovd %xmm0, %rax
vmovq %xmm0, %rax
// CHECK: seto 3735928559(%r10,%r9,8)
// CHECK: encoding: [0x43,0x0f,0x90,0x84,0xca,0xef,0xbe,0xad,0xde]
seto 0xdeadbeef(%r10,%r9,8)
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx
// CHECK: monitorx
// CHECK: encoding: [0x0f,0x01,0xfa]
monitorx %rax, %rcx, %rdx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx
// CHECK: mwaitx
// CHECK: encoding: [0x0f,0x01,0xfb]
mwaitx %rax, %rcx, %rbx