1 //===- X86InstrSystem.td - System Instructions -------------*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the X86 instructions that are generally used in
11 // privileged modes. These are not typically used by the compiler, but are
12 // supported for the assembler and disassembler.
14 //===----------------------------------------------------------------------===//
16 let Defs = [RAX, RDX] in
17 def RDTSC : I<0x31, RawFrm, (outs), (ins), "rdtsc", [(X86rdtsc)]>, TB;
19 let Defs = [RAX, RCX, RDX] in
20 def RDTSCP : I<0x01, MRM_F9, (outs), (ins), "rdtscp", []>, TB;
22 // CPU flow control instructions
24 let isTerminator = 1, isBarrier = 1, hasCtrlDep = 1 in {
25 def TRAP : I<0x0B, RawFrm, (outs), (ins), "ud2", [(trap)]>, TB;
26 def UD2B : I<0xB9, RawFrm, (outs), (ins), "ud2b", []>, TB;
29 def HLT : I<0xF4, RawFrm, (outs), (ins), "hlt", []>;
30 def RSM : I<0xAA, RawFrm, (outs), (ins), "rsm", []>, TB;
32 // Interrupt and SysCall Instructions.
33 let Uses = [EFLAGS] in
34 def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
35 def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3",
36 [(int_x86_int (i8 3))]>;
37 def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap",
38 [(int_x86_int imm:$trap)]>;
40 def SYSCALL : I<0x05, RawFrm, (outs), (ins), "syscall", []>, TB;
41 def SYSRETL : I<0x07, RawFrm, (outs), (ins), "sysretl", []>, TB;
42 def SYSRETQ :RI<0x07, RawFrm, (outs), (ins), "sysretq", []>, TB,
43 Requires<[In64BitMode]>;
45 def SYSENTER : I<0x34, RawFrm, (outs), (ins), "sysenter", []>, TB;
47 def SYSEXIT : I<0x35, RawFrm, (outs), (ins), "sysexit", []>, TB,
48 Requires<[In32BitMode]>;
49 def SYSEXIT64 :RI<0x35, RawFrm, (outs), (ins), "sysexit", []>, TB,
50 Requires<[In64BitMode]>;
52 def IRET16 : I<0xcf, RawFrm, (outs), (ins), "iretw", []>, OpSize;
53 def IRET32 : I<0xcf, RawFrm, (outs), (ins), "iret{l|d}", []>;
54 def IRET64 : RI<0xcf, RawFrm, (outs), (ins), "iretq", []>,
55 Requires<[In64BitMode]>;
58 //===----------------------------------------------------------------------===//
59 // Input/Output Instructions.
61 let Defs = [AL], Uses = [DX] in
62 def IN8rr : I<0xEC, RawFrm, (outs), (ins),
63 "in{b}\t{%dx, %al|%AL, %DX}", []>;
64 let Defs = [AX], Uses = [DX] in
65 def IN16rr : I<0xED, RawFrm, (outs), (ins),
66 "in{w}\t{%dx, %ax|%AX, %DX}", []>, OpSize;
67 let Defs = [EAX], Uses = [DX] in
68 def IN32rr : I<0xED, RawFrm, (outs), (ins),
69 "in{l}\t{%dx, %eax|%EAX, %DX}", []>;
72 def IN8ri : Ii8<0xE4, RawFrm, (outs), (ins i8imm:$port),
73 "in{b}\t{$port, %al|%AL, $port}", []>;
75 def IN16ri : Ii8<0xE5, RawFrm, (outs), (ins i8imm:$port),
76 "in{w}\t{$port, %ax|%AX, $port}", []>, OpSize;
78 def IN32ri : Ii8<0xE5, RawFrm, (outs), (ins i8imm:$port),
79 "in{l}\t{$port, %eax|%EAX, $port}", []>;
81 let Uses = [DX, AL] in
82 def OUT8rr : I<0xEE, RawFrm, (outs), (ins),
83 "out{b}\t{%al, %dx|%DX, %AL}", []>;
84 let Uses = [DX, AX] in
85 def OUT16rr : I<0xEF, RawFrm, (outs), (ins),
86 "out{w}\t{%ax, %dx|%DX, %AX}", []>, OpSize;
87 let Uses = [DX, EAX] in
88 def OUT32rr : I<0xEF, RawFrm, (outs), (ins),
89 "out{l}\t{%eax, %dx|%DX, %EAX}", []>;
92 def OUT8ir : Ii8<0xE6, RawFrm, (outs), (ins i8imm:$port),
93 "out{b}\t{%al, $port|$port, %AL}", []>;
95 def OUT16ir : Ii8<0xE7, RawFrm, (outs), (ins i8imm:$port),
96 "out{w}\t{%ax, $port|$port, %AX}", []>, OpSize;
98 def OUT32ir : Ii8<0xE7, RawFrm, (outs), (ins i8imm:$port),
99 "out{l}\t{%eax, $port|$port, %EAX}", []>;
101 def IN8 : I<0x6C, RawFrm, (outs), (ins), "ins{b}", []>;
102 def IN16 : I<0x6D, RawFrm, (outs), (ins), "ins{w}", []>, OpSize;
103 def IN32 : I<0x6D, RawFrm, (outs), (ins), "ins{l}", []>;
105 //===----------------------------------------------------------------------===//
106 // Moves to and from debug registers
108 def MOV32rd : I<0x21, MRMDestReg, (outs GR32:$dst), (ins DEBUG_REG:$src),
109 "mov{l}\t{$src, $dst|$dst, $src}", []>, TB;
110 def MOV64rd : I<0x21, MRMDestReg, (outs GR64:$dst), (ins DEBUG_REG:$src),
111 "mov{q}\t{$src, $dst|$dst, $src}", []>, TB;
113 def MOV32dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR32:$src),
114 "mov{l}\t{$src, $dst|$dst, $src}", []>, TB;
115 def MOV64dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR64:$src),
116 "mov{q}\t{$src, $dst|$dst, $src}", []>, TB;
118 //===----------------------------------------------------------------------===//
119 // Moves to and from control registers
121 def MOV32rc : I<0x20, MRMDestReg, (outs GR32:$dst), (ins CONTROL_REG:$src),
122 "mov{l}\t{$src, $dst|$dst, $src}", []>, TB;
123 def MOV64rc : I<0x20, MRMDestReg, (outs GR64:$dst), (ins CONTROL_REG:$src),
124 "mov{q}\t{$src, $dst|$dst, $src}", []>, TB;
126 def MOV32cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR32:$src),
127 "mov{l}\t{$src, $dst|$dst, $src}", []>, TB;
128 def MOV64cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR64:$src),
129 "mov{q}\t{$src, $dst|$dst, $src}", []>, TB;
131 //===----------------------------------------------------------------------===//
132 // Segment override instruction prefixes
134 def CS_PREFIX : I<0x2E, RawFrm, (outs), (ins), "cs", []>;
135 def SS_PREFIX : I<0x36, RawFrm, (outs), (ins), "ss", []>;
136 def DS_PREFIX : I<0x3E, RawFrm, (outs), (ins), "ds", []>;
137 def ES_PREFIX : I<0x26, RawFrm, (outs), (ins), "es", []>;
138 def FS_PREFIX : I<0x64, RawFrm, (outs), (ins), "fs", []>;
139 def GS_PREFIX : I<0x65, RawFrm, (outs), (ins), "gs", []>;
142 //===----------------------------------------------------------------------===//
143 // Moves to and from segment registers.
146 def MOV16rs : I<0x8C, MRMDestReg, (outs GR16:$dst), (ins SEGMENT_REG:$src),
147 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
148 def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
149 "mov{l}\t{$src, $dst|$dst, $src}", []>;
150 def MOV64rs : RI<0x8C, MRMDestReg, (outs GR64:$dst), (ins SEGMENT_REG:$src),
151 "mov{q}\t{$src, $dst|$dst, $src}", []>;
153 def MOV16ms : I<0x8C, MRMDestMem, (outs i16mem:$dst), (ins SEGMENT_REG:$src),
154 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
155 def MOV32ms : I<0x8C, MRMDestMem, (outs i32mem:$dst), (ins SEGMENT_REG:$src),
156 "mov{l}\t{$src, $dst|$dst, $src}", []>;
157 def MOV64ms : RI<0x8C, MRMDestMem, (outs i64mem:$dst), (ins SEGMENT_REG:$src),
158 "mov{q}\t{$src, $dst|$dst, $src}", []>;
160 def MOV16sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR16:$src),
161 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
162 def MOV32sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR32:$src),
163 "mov{l}\t{$src, $dst|$dst, $src}", []>;
164 def MOV64sr : RI<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR64:$src),
165 "mov{q}\t{$src, $dst|$dst, $src}", []>;
167 def MOV16sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i16mem:$src),
168 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
169 def MOV32sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i32mem:$src),
170 "mov{l}\t{$src, $dst|$dst, $src}", []>;
171 def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
172 "mov{q}\t{$src, $dst|$dst, $src}", []>;
174 //===----------------------------------------------------------------------===//
175 // Segmentation support instructions.
177 def SWAPGS : I<0x01, MRM_F8, (outs), (ins), "swapgs", []>, TB;
179 def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
180 "lar{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
181 def LAR16rr : I<0x02, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
182 "lar{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
184 // i16mem operand in LAR32rm and GR32 operand in LAR32rr is not a typo.
185 def LAR32rm : I<0x02, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
186 "lar{l}\t{$src, $dst|$dst, $src}", []>, TB;
187 def LAR32rr : I<0x02, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
188 "lar{l}\t{$src, $dst|$dst, $src}", []>, TB;
189 // i16mem operand in LAR64rm and GR32 operand in LAR32rr is not a typo.
190 def LAR64rm : RI<0x02, MRMSrcMem, (outs GR64:$dst), (ins i16mem:$src),
191 "lar{q}\t{$src, $dst|$dst, $src}", []>, TB;
192 def LAR64rr : RI<0x02, MRMSrcReg, (outs GR64:$dst), (ins GR32:$src),
193 "lar{q}\t{$src, $dst|$dst, $src}", []>, TB;
195 def LSL16rm : I<0x03, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
196 "lsl{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
197 def LSL16rr : I<0x03, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
198 "lsl{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
199 def LSL32rm : I<0x03, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
200 "lsl{l}\t{$src, $dst|$dst, $src}", []>, TB;
201 def LSL32rr : I<0x03, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
202 "lsl{l}\t{$src, $dst|$dst, $src}", []>, TB;
203 def LSL64rm : RI<0x03, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
204 "lsl{q}\t{$src, $dst|$dst, $src}", []>, TB;
205 def LSL64rr : RI<0x03, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
206 "lsl{q}\t{$src, $dst|$dst, $src}", []>, TB;
208 def INVLPG : I<0x01, MRM7m, (outs), (ins i8mem:$addr), "invlpg\t$addr", []>, TB;
210 def STRr : I<0x00, MRM1r, (outs GR16:$dst), (ins),
211 "str{w}\t{$dst}", []>, TB;
212 def STRm : I<0x00, MRM1m, (outs i16mem:$dst), (ins),
213 "str{w}\t{$dst}", []>, TB;
214 def LTRr : I<0x00, MRM3r, (outs), (ins GR16:$src),
215 "ltr{w}\t{$src}", []>, TB;
216 def LTRm : I<0x00, MRM3m, (outs), (ins i16mem:$src),
217 "ltr{w}\t{$src}", []>, TB;
219 def PUSHCS16 : I<0x0E, RawFrm, (outs), (ins),
220 "push{w}\t%cs", []>, Requires<[In32BitMode]>, OpSize;
221 def PUSHCS32 : I<0x0E, RawFrm, (outs), (ins),
222 "push{l}\t%cs", []>, Requires<[In32BitMode]>;
223 def PUSHSS16 : I<0x16, RawFrm, (outs), (ins),
224 "push{w}\t%ss", []>, Requires<[In32BitMode]>, OpSize;
225 def PUSHSS32 : I<0x16, RawFrm, (outs), (ins),
226 "push{l}\t%ss", []>, Requires<[In32BitMode]>;
227 def PUSHDS16 : I<0x1E, RawFrm, (outs), (ins),
228 "push{w}\t%ds", []>, Requires<[In32BitMode]>, OpSize;
229 def PUSHDS32 : I<0x1E, RawFrm, (outs), (ins),
230 "push{l}\t%ds", []>, Requires<[In32BitMode]>;
231 def PUSHES16 : I<0x06, RawFrm, (outs), (ins),
232 "push{w}\t%es", []>, Requires<[In32BitMode]>, OpSize;
233 def PUSHES32 : I<0x06, RawFrm, (outs), (ins),
234 "push{l}\t%es", []>, Requires<[In32BitMode]>;
236 def PUSHFS16 : I<0xa0, RawFrm, (outs), (ins),
237 "push{w}\t%fs", []>, OpSize, TB;
238 def PUSHFS32 : I<0xa0, RawFrm, (outs), (ins),
239 "push{l}\t%fs", []>, TB, Requires<[In32BitMode]>;
240 def PUSHGS16 : I<0xa8, RawFrm, (outs), (ins),
241 "push{w}\t%gs", []>, OpSize, TB;
242 def PUSHGS32 : I<0xa8, RawFrm, (outs), (ins),
243 "push{l}\t%gs", []>, TB, Requires<[In32BitMode]>;
245 def PUSHFS64 : I<0xa0, RawFrm, (outs), (ins),
246 "push{q}\t%fs", []>, TB;
247 def PUSHGS64 : I<0xa8, RawFrm, (outs), (ins),
248 "push{q}\t%gs", []>, TB;
250 // No "pop cs" instruction.
251 def POPSS16 : I<0x17, RawFrm, (outs), (ins),
252 "pop{w}\t%ss", []>, OpSize, Requires<[In32BitMode]>;
253 def POPSS32 : I<0x17, RawFrm, (outs), (ins),
254 "pop{l}\t%ss", []> , Requires<[In32BitMode]>;
256 def POPDS16 : I<0x1F, RawFrm, (outs), (ins),
257 "pop{w}\t%ds", []>, OpSize, Requires<[In32BitMode]>;
258 def POPDS32 : I<0x1F, RawFrm, (outs), (ins),
259 "pop{l}\t%ds", []> , Requires<[In32BitMode]>;
261 def POPES16 : I<0x07, RawFrm, (outs), (ins),
262 "pop{w}\t%es", []>, OpSize, Requires<[In32BitMode]>;
263 def POPES32 : I<0x07, RawFrm, (outs), (ins),
264 "pop{l}\t%es", []> , Requires<[In32BitMode]>;
266 def POPFS16 : I<0xa1, RawFrm, (outs), (ins),
267 "pop{w}\t%fs", []>, OpSize, TB;
268 def POPFS32 : I<0xa1, RawFrm, (outs), (ins),
269 "pop{l}\t%fs", []>, TB , Requires<[In32BitMode]>;
270 def POPFS64 : I<0xa1, RawFrm, (outs), (ins),
271 "pop{q}\t%fs", []>, TB;
273 def POPGS16 : I<0xa9, RawFrm, (outs), (ins),
274 "pop{w}\t%gs", []>, OpSize, TB;
275 def POPGS32 : I<0xa9, RawFrm, (outs), (ins),
276 "pop{l}\t%gs", []>, TB , Requires<[In32BitMode]>;
277 def POPGS64 : I<0xa9, RawFrm, (outs), (ins),
278 "pop{q}\t%gs", []>, TB;
281 def LDS16rm : I<0xc5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
282 "lds{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
283 def LDS32rm : I<0xc5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
284 "lds{l}\t{$src, $dst|$dst, $src}", []>;
286 def LSS16rm : I<0xb2, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
287 "lss{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
288 def LSS32rm : I<0xb2, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
289 "lss{l}\t{$src, $dst|$dst, $src}", []>, TB;
290 def LSS64rm : RI<0xb2, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
291 "lss{q}\t{$src, $dst|$dst, $src}", []>, TB;
293 def LES16rm : I<0xc4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
294 "les{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
295 def LES32rm : I<0xc4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
296 "les{l}\t{$src, $dst|$dst, $src}", []>;
298 def LFS16rm : I<0xb4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
299 "lfs{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
300 def LFS32rm : I<0xb4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
301 "lfs{l}\t{$src, $dst|$dst, $src}", []>, TB;
302 def LFS64rm : RI<0xb4, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
303 "lfs{q}\t{$src, $dst|$dst, $src}", []>, TB;
305 def LGS16rm : I<0xb5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
306 "lgs{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
307 def LGS32rm : I<0xb5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
308 "lgs{l}\t{$src, $dst|$dst, $src}", []>, TB;
310 def LGS64rm : RI<0xb5, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
311 "lgs{q}\t{$src, $dst|$dst, $src}", []>, TB;
314 def VERRr : I<0x00, MRM4r, (outs), (ins GR16:$seg),
315 "verr\t$seg", []>, TB;
316 def VERRm : I<0x00, MRM4m, (outs), (ins i16mem:$seg),
317 "verr\t$seg", []>, TB;
318 def VERWr : I<0x00, MRM5r, (outs), (ins GR16:$seg),
319 "verw\t$seg", []>, TB;
320 def VERWm : I<0x00, MRM5m, (outs), (ins i16mem:$seg),
321 "verw\t$seg", []>, TB;
323 //===----------------------------------------------------------------------===//
324 // Descriptor-table support instructions
326 def SGDT16m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
327 "sgdtw\t$dst", []>, TB, OpSize, Requires<[In32BitMode]>;
328 def SGDTm : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
329 "sgdt\t$dst", []>, TB;
330 def SIDT16m : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
331 "sidtw\t$dst", []>, TB, OpSize, Requires<[In32BitMode]>;
332 def SIDTm : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
333 "sidt\t$dst", []>, TB;
334 def SLDT16r : I<0x00, MRM0r, (outs GR16:$dst), (ins),
335 "sldt{w}\t$dst", []>, TB, OpSize;
336 def SLDT16m : I<0x00, MRM0m, (outs i16mem:$dst), (ins),
337 "sldt{w}\t$dst", []>, TB;
338 def SLDT32r : I<0x00, MRM0r, (outs GR32:$dst), (ins),
339 "sldt{l}\t$dst", []>, TB;
341 // LLDT is not interpreted specially in 64-bit mode because there is no sign
343 def SLDT64r : RI<0x00, MRM0r, (outs GR64:$dst), (ins),
344 "sldt{q}\t$dst", []>, TB;
345 def SLDT64m : RI<0x00, MRM0m, (outs i16mem:$dst), (ins),
346 "sldt{q}\t$dst", []>, TB;
348 def LGDT16m : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
349 "lgdtw\t$src", []>, TB, OpSize, Requires<[In32BitMode]>;
350 def LGDTm : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
351 "lgdt\t$src", []>, TB;
352 def LIDT16m : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
353 "lidtw\t$src", []>, TB, OpSize, Requires<[In32BitMode]>;
354 def LIDTm : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
355 "lidt\t$src", []>, TB;
356 def LLDT16r : I<0x00, MRM2r, (outs), (ins GR16:$src),
357 "lldt{w}\t$src", []>, TB;
358 def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
359 "lldt{w}\t$src", []>, TB;
361 //===----------------------------------------------------------------------===//
362 // Specialized register support
363 def WRMSR : I<0x30, RawFrm, (outs), (ins), "wrmsr", []>, TB;
364 def RDMSR : I<0x32, RawFrm, (outs), (ins), "rdmsr", []>, TB;
365 def RDPMC : I<0x33, RawFrm, (outs), (ins), "rdpmc", []>, TB;
367 def SMSW16r : I<0x01, MRM4r, (outs GR16:$dst), (ins),
368 "smsw{w}\t$dst", []>, OpSize, TB;
369 def SMSW32r : I<0x01, MRM4r, (outs GR32:$dst), (ins),
370 "smsw{l}\t$dst", []>, TB;
371 // no m form encodable; use SMSW16m
372 def SMSW64r : RI<0x01, MRM4r, (outs GR64:$dst), (ins),
373 "smsw{q}\t$dst", []>, TB;
375 // For memory operands, there is only a 16-bit form
376 def SMSW16m : I<0x01, MRM4m, (outs i16mem:$dst), (ins),
377 "smsw{w}\t$dst", []>, TB;
379 def LMSW16r : I<0x01, MRM6r, (outs), (ins GR16:$src),
380 "lmsw{w}\t$src", []>, TB;
381 def LMSW16m : I<0x01, MRM6m, (outs), (ins i16mem:$src),
382 "lmsw{w}\t$src", []>, TB;
384 def CPUID : I<0xA2, RawFrm, (outs), (ins), "cpuid", []>, TB;
386 //===----------------------------------------------------------------------===//
387 // Cache instructions
388 def INVD : I<0x08, RawFrm, (outs), (ins), "invd", []>, TB;
389 def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", []>, TB;