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 SchedRW = [WriteSystem] in {
17 let Defs = [RAX, RDX] in
18 def RDTSC : I<0x31, RawFrm, (outs), (ins), "rdtsc", [(X86rdtsc)], IIC_RDTSC>,
21 let Defs = [RAX, RCX, RDX] in
22 def RDTSCP : I<0x01, MRM_F9, (outs), (ins), "rdtscp", []>, TB;
24 // CPU flow control instructions
26 let isTerminator = 1, isBarrier = 1, hasCtrlDep = 1 in {
27 def TRAP : I<0x0B, RawFrm, (outs), (ins), "ud2", [(trap)]>, TB;
28 def UD2B : I<0xB9, RawFrm, (outs), (ins), "ud2b", []>, TB;
31 def HLT : I<0xF4, RawFrm, (outs), (ins), "hlt", [], IIC_HLT>;
32 def RSM : I<0xAA, RawFrm, (outs), (ins), "rsm", [], IIC_RSM>, TB;
34 // Interrupt and SysCall Instructions.
35 let Uses = [EFLAGS] in
36 def INTO : I<0xce, RawFrm, (outs), (ins), "into", []>;
37 def INT3 : I<0xcc, RawFrm, (outs), (ins), "int3",
38 [(int_x86_int (i8 3))], IIC_INT3>;
41 def : Pat<(debugtrap),
44 // The long form of "int $3" turns into int3 as a size optimization.
45 // FIXME: This doesn't work because InstAlias can't match immediate constants.
46 //def : InstAlias<"int\t$3", (INT3)>;
48 let SchedRW = [WriteSystem] in {
50 def INT : Ii8<0xcd, RawFrm, (outs), (ins i8imm:$trap), "int\t$trap",
51 [(int_x86_int imm:$trap)], IIC_INT>;
54 def SYSCALL : I<0x05, RawFrm, (outs), (ins), "syscall", [], IIC_SYSCALL>, TB;
55 def SYSRET : I<0x07, RawFrm, (outs), (ins), "sysret{l}", [], IIC_SYSCALL>, TB;
56 def SYSRET64 :RI<0x07, RawFrm, (outs), (ins), "sysret{q}", [], IIC_SYSCALL>, TB,
57 Requires<[In64BitMode]>;
59 def SYSENTER : I<0x34, RawFrm, (outs), (ins), "sysenter", [],
60 IIC_SYS_ENTER_EXIT>, TB;
62 def SYSEXIT : I<0x35, RawFrm, (outs), (ins), "sysexit{l}", [],
63 IIC_SYS_ENTER_EXIT>, TB;
64 def SYSEXIT64 :RI<0x35, RawFrm, (outs), (ins), "sysexit{q}", []>, TB,
65 Requires<[In64BitMode]>;
67 def IRET16 : I<0xcf, RawFrm, (outs), (ins), "iret{w}", [], IIC_IRET>, OpSize;
68 def IRET32 : I<0xcf, RawFrm, (outs), (ins), "iret{l|d}", [], IIC_IRET>,
70 def IRET64 : RI<0xcf, RawFrm, (outs), (ins), "iretq", [], IIC_IRET>,
71 Requires<[In64BitMode]>;
75 //===----------------------------------------------------------------------===//
76 // Input/Output Instructions.
78 let SchedRW = [WriteSystem] in {
79 let Defs = [AL], Uses = [DX] in
80 def IN8rr : I<0xEC, RawFrm, (outs), (ins),
81 "in{b}\t{%dx, %al|al, dx}", [], IIC_IN_RR>;
82 let Defs = [AX], Uses = [DX] in
83 def IN16rr : I<0xED, RawFrm, (outs), (ins),
84 "in{w}\t{%dx, %ax|ax, dx}", [], IIC_IN_RR>, OpSize;
85 let Defs = [EAX], Uses = [DX] in
86 def IN32rr : I<0xED, RawFrm, (outs), (ins),
87 "in{l}\t{%dx, %eax|eax, dx}", [], IIC_IN_RR>, OpSize16;
90 def IN8ri : Ii8<0xE4, RawFrm, (outs), (ins i8imm:$port),
91 "in{b}\t{$port, %al|al, $port}", [], IIC_IN_RI>;
93 def IN16ri : Ii8<0xE5, RawFrm, (outs), (ins i8imm:$port),
94 "in{w}\t{$port, %ax|ax, $port}", [], IIC_IN_RI>, OpSize;
96 def IN32ri : Ii8<0xE5, RawFrm, (outs), (ins i8imm:$port),
97 "in{l}\t{$port, %eax|eax, $port}", [], IIC_IN_RI>, OpSize16;
99 let Uses = [DX, AL] in
100 def OUT8rr : I<0xEE, RawFrm, (outs), (ins),
101 "out{b}\t{%al, %dx|dx, al}", [], IIC_OUT_RR>;
102 let Uses = [DX, AX] in
103 def OUT16rr : I<0xEF, RawFrm, (outs), (ins),
104 "out{w}\t{%ax, %dx|dx, ax}", [], IIC_OUT_RR>, OpSize;
105 let Uses = [DX, EAX] in
106 def OUT32rr : I<0xEF, RawFrm, (outs), (ins),
107 "out{l}\t{%eax, %dx|dx, eax}", [], IIC_OUT_RR>, OpSize16;
110 def OUT8ir : Ii8<0xE6, RawFrm, (outs), (ins i8imm:$port),
111 "out{b}\t{%al, $port|$port, al}", [], IIC_OUT_IR>;
113 def OUT16ir : Ii8<0xE7, RawFrm, (outs), (ins i8imm:$port),
114 "out{w}\t{%ax, $port|$port, ax}", [], IIC_OUT_IR>, OpSize;
116 def OUT32ir : Ii8<0xE7, RawFrm, (outs), (ins i8imm:$port),
117 "out{l}\t{%eax, $port|$port, eax}", [], IIC_OUT_IR>, OpSize16;
119 def IN8 : I<0x6C, RawFrm, (outs), (ins), "ins{b}", [], IIC_INS>;
120 def IN16 : I<0x6D, RawFrm, (outs), (ins), "ins{w}", [], IIC_INS>, OpSize;
121 def IN32 : I<0x6D, RawFrm, (outs), (ins), "ins{l}", [], IIC_INS>, OpSize16;
124 //===----------------------------------------------------------------------===//
125 // Moves to and from debug registers
127 let SchedRW = [WriteSystem] in {
128 def MOV32rd : I<0x21, MRMDestReg, (outs GR32:$dst), (ins DEBUG_REG:$src),
129 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_DR>, TB,
130 Requires<[Not64BitMode]>;
131 def MOV64rd : I<0x21, MRMDestReg, (outs GR64:$dst), (ins DEBUG_REG:$src),
132 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_DR>, TB,
133 Requires<[In64BitMode]>;
135 def MOV32dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR32:$src),
136 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB,
137 Requires<[Not64BitMode]>;
138 def MOV64dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR64:$src),
139 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB,
140 Requires<[In64BitMode]>;
143 //===----------------------------------------------------------------------===//
144 // Moves to and from control registers
146 let SchedRW = [WriteSystem] in {
147 def MOV32rc : I<0x20, MRMDestReg, (outs GR32:$dst), (ins CONTROL_REG:$src),
148 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_CR>, TB,
149 Requires<[Not64BitMode]>;
150 def MOV64rc : I<0x20, MRMDestReg, (outs GR64:$dst), (ins CONTROL_REG:$src),
151 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_CR>, TB,
152 Requires<[In64BitMode]>;
154 def MOV32cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR32:$src),
155 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB,
156 Requires<[Not64BitMode]>;
157 def MOV64cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR64:$src),
158 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB,
159 Requires<[In64BitMode]>;
162 //===----------------------------------------------------------------------===//
163 // Segment override instruction prefixes
165 def CS_PREFIX : I<0x2E, RawFrm, (outs), (ins), "cs", []>;
166 def SS_PREFIX : I<0x36, RawFrm, (outs), (ins), "ss", []>;
167 def DS_PREFIX : I<0x3E, RawFrm, (outs), (ins), "ds", []>;
168 def ES_PREFIX : I<0x26, RawFrm, (outs), (ins), "es", []>;
169 def FS_PREFIX : I<0x64, RawFrm, (outs), (ins), "fs", []>;
170 def GS_PREFIX : I<0x65, RawFrm, (outs), (ins), "gs", []>;
173 //===----------------------------------------------------------------------===//
174 // Moves to and from segment registers.
177 let SchedRW = [WriteMove] in {
178 def MOV16rs : I<0x8C, MRMDestReg, (outs GR16:$dst), (ins SEGMENT_REG:$src),
179 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize;
180 def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
181 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize16;
182 def MOV64rs : RI<0x8C, MRMDestReg, (outs GR64:$dst), (ins SEGMENT_REG:$src),
183 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>;
185 def MOV16ms : I<0x8C, MRMDestMem, (outs i16mem:$dst), (ins SEGMENT_REG:$src),
186 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize;
187 def MOV32ms : I<0x8C, MRMDestMem, (outs i32mem:$dst), (ins SEGMENT_REG:$src),
188 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize16;
189 def MOV64ms : RI<0x8C, MRMDestMem, (outs i64mem:$dst), (ins SEGMENT_REG:$src),
190 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>;
192 def MOV16sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR16:$src),
193 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize;
194 def MOV32sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR32:$src),
195 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize16;
196 def MOV64sr : RI<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR64:$src),
197 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>;
199 def MOV16sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i16mem:$src),
200 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize;
201 def MOV32sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i32mem:$src),
202 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize16;
203 def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
204 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>;
207 //===----------------------------------------------------------------------===//
208 // Segmentation support instructions.
210 let SchedRW = [WriteSystem] in {
211 def SWAPGS : I<0x01, MRM_F8, (outs), (ins), "swapgs", [], IIC_SWAPGS>, TB;
213 def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
214 "lar{w}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB, OpSize;
215 def LAR16rr : I<0x02, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
216 "lar{w}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB, OpSize;
218 // i16mem operand in LAR32rm and GR32 operand in LAR32rr is not a typo.
219 def LAR32rm : I<0x02, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
220 "lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB,
222 def LAR32rr : I<0x02, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
223 "lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB,
225 // i16mem operand in LAR64rm and GR32 operand in LAR32rr is not a typo.
226 def LAR64rm : RI<0x02, MRMSrcMem, (outs GR64:$dst), (ins i16mem:$src),
227 "lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB;
228 def LAR64rr : RI<0x02, MRMSrcReg, (outs GR64:$dst), (ins GR32:$src),
229 "lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB;
231 def LSL16rm : I<0x03, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
232 "lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB, OpSize;
233 def LSL16rr : I<0x03, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
234 "lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB, OpSize;
235 def LSL32rm : I<0x03, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
236 "lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB,
238 def LSL32rr : I<0x03, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
239 "lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB,
241 def LSL64rm : RI<0x03, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
242 "lsl{q}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB;
243 def LSL64rr : RI<0x03, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
244 "lsl{q}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB;
246 def INVLPG : I<0x01, MRM7m, (outs), (ins i8mem:$addr), "invlpg\t$addr",
249 def STR16r : I<0x00, MRM1r, (outs GR16:$dst), (ins),
250 "str{w}\t$dst", [], IIC_STR>, TB, OpSize;
251 def STR32r : I<0x00, MRM1r, (outs GR32:$dst), (ins),
252 "str{l}\t$dst", [], IIC_STR>, TB, OpSize16;
253 def STR64r : RI<0x00, MRM1r, (outs GR64:$dst), (ins),
254 "str{q}\t$dst", [], IIC_STR>, TB;
255 def STRm : I<0x00, MRM1m, (outs i16mem:$dst), (ins),
256 "str{w}\t$dst", [], IIC_STR>, TB;
258 def LTRr : I<0x00, MRM3r, (outs), (ins GR16:$src),
259 "ltr{w}\t$src", [], IIC_LTR>, TB;
260 def LTRm : I<0x00, MRM3m, (outs), (ins i16mem:$src),
261 "ltr{w}\t$src", [], IIC_LTR>, TB;
263 def PUSHCS16 : I<0x0E, RawFrm, (outs), (ins),
264 "push{w}\t{%cs|cs}", [], IIC_PUSH_SR>,
265 OpSize, Requires<[Not64BitMode]>;
266 def PUSHCS32 : I<0x0E, RawFrm, (outs), (ins),
267 "push{l}\t{%cs|cs}", [], IIC_PUSH_CS>,
268 OpSize16, Requires<[Not64BitMode]>;
269 def PUSHSS16 : I<0x16, RawFrm, (outs), (ins),
270 "push{w}\t{%ss|ss}", [], IIC_PUSH_SR>,
271 OpSize, Requires<[Not64BitMode]>;
272 def PUSHSS32 : I<0x16, RawFrm, (outs), (ins),
273 "push{l}\t{%ss|ss}", [], IIC_PUSH_SR>,
274 OpSize16, Requires<[Not64BitMode]>;
275 def PUSHDS16 : I<0x1E, RawFrm, (outs), (ins),
276 "push{w}\t{%ds|ds}", [], IIC_PUSH_SR>,
277 OpSize, Requires<[Not64BitMode]>;
278 def PUSHDS32 : I<0x1E, RawFrm, (outs), (ins),
279 "push{l}\t{%ds|ds}", [], IIC_PUSH_SR>,
280 OpSize16, Requires<[Not64BitMode]>;
281 def PUSHES16 : I<0x06, RawFrm, (outs), (ins),
282 "push{w}\t{%es|es}", [], IIC_PUSH_SR>,
283 OpSize, Requires<[Not64BitMode]>;
284 def PUSHES32 : I<0x06, RawFrm, (outs), (ins),
285 "push{l}\t{%es|es}", [], IIC_PUSH_SR>,
286 OpSize16, Requires<[Not64BitMode]>;
287 def PUSHFS16 : I<0xa0, RawFrm, (outs), (ins),
288 "push{w}\t{%fs|fs}", [], IIC_PUSH_SR>, OpSize, TB;
289 def PUSHFS32 : I<0xa0, RawFrm, (outs), (ins),
290 "push{l}\t{%fs|fs}", [], IIC_PUSH_SR>, TB,
291 OpSize16, Requires<[Not64BitMode]>;
292 def PUSHGS16 : I<0xa8, RawFrm, (outs), (ins),
293 "push{w}\t{%gs|gs}", [], IIC_PUSH_SR>, OpSize, TB;
294 def PUSHGS32 : I<0xa8, RawFrm, (outs), (ins),
295 "push{l}\t{%gs|gs}", [], IIC_PUSH_SR>, TB,
296 OpSize16, Requires<[Not64BitMode]>;
297 def PUSHFS64 : I<0xa0, RawFrm, (outs), (ins),
298 "push{q}\t{%fs|fs}", [], IIC_PUSH_SR>, TB, Requires<[In64BitMode]>;
299 def PUSHGS64 : I<0xa8, RawFrm, (outs), (ins),
300 "push{q}\t{%gs|gs}", [], IIC_PUSH_SR>, TB, Requires<[In64BitMode]>;
302 // No "pop cs" instruction.
303 def POPSS16 : I<0x17, RawFrm, (outs), (ins),
304 "pop{w}\t{%ss|ss}", [], IIC_POP_SR_SS>,
305 OpSize, Requires<[Not64BitMode]>;
306 def POPSS32 : I<0x17, RawFrm, (outs), (ins),
307 "pop{l}\t{%ss|ss}", [], IIC_POP_SR_SS>,
308 OpSize16, Requires<[Not64BitMode]>;
310 def POPDS16 : I<0x1F, RawFrm, (outs), (ins),
311 "pop{w}\t{%ds|ds}", [], IIC_POP_SR>,
312 OpSize, Requires<[Not64BitMode]>;
313 def POPDS32 : I<0x1F, RawFrm, (outs), (ins),
314 "pop{l}\t{%ds|ds}", [], IIC_POP_SR>,
315 OpSize16, Requires<[Not64BitMode]>;
317 def POPES16 : I<0x07, RawFrm, (outs), (ins),
318 "pop{w}\t{%es|es}", [], IIC_POP_SR>,
319 OpSize, Requires<[Not64BitMode]>;
320 def POPES32 : I<0x07, RawFrm, (outs), (ins),
321 "pop{l}\t{%es|es}", [], IIC_POP_SR>,
322 OpSize16, Requires<[Not64BitMode]>;
324 def POPFS16 : I<0xa1, RawFrm, (outs), (ins),
325 "pop{w}\t{%fs|fs}", [], IIC_POP_SR>, OpSize, TB;
326 def POPFS32 : I<0xa1, RawFrm, (outs), (ins),
327 "pop{l}\t{%fs|fs}", [], IIC_POP_SR>, TB,
328 OpSize16, Requires<[Not64BitMode]>;
329 def POPFS64 : I<0xa1, RawFrm, (outs), (ins),
330 "pop{q}\t{%fs|fs}", [], IIC_POP_SR>, TB, Requires<[In64BitMode]>;
332 def POPGS16 : I<0xa9, RawFrm, (outs), (ins),
333 "pop{w}\t{%gs|gs}", [], IIC_POP_SR>, OpSize, TB;
334 def POPGS32 : I<0xa9, RawFrm, (outs), (ins),
335 "pop{l}\t{%gs|gs}", [], IIC_POP_SR>, TB,
336 OpSize16, Requires<[Not64BitMode]>;
337 def POPGS64 : I<0xa9, RawFrm, (outs), (ins),
338 "pop{q}\t{%gs|gs}", [], IIC_POP_SR>, TB, Requires<[In64BitMode]>;
341 def LDS16rm : I<0xc5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
342 "lds{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize;
343 def LDS32rm : I<0xc5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
344 "lds{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize16;
346 def LSS16rm : I<0xb2, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
347 "lss{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
348 def LSS32rm : I<0xb2, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
349 "lss{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
350 def LSS64rm : RI<0xb2, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
351 "lss{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
353 def LES16rm : I<0xc4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
354 "les{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize;
355 def LES32rm : I<0xc4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
356 "les{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize16;
358 def LFS16rm : I<0xb4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
359 "lfs{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
360 def LFS32rm : I<0xb4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
361 "lfs{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
362 def LFS64rm : RI<0xb4, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
363 "lfs{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
365 def LGS16rm : I<0xb5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
366 "lgs{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
367 def LGS32rm : I<0xb5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
368 "lgs{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
370 def LGS64rm : RI<0xb5, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
371 "lgs{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
374 def VERRr : I<0x00, MRM4r, (outs), (ins GR16:$seg),
375 "verr\t$seg", [], IIC_VERR>, TB;
376 def VERRm : I<0x00, MRM4m, (outs), (ins i16mem:$seg),
377 "verr\t$seg", [], IIC_VERR>, TB;
378 def VERWr : I<0x00, MRM5r, (outs), (ins GR16:$seg),
379 "verw\t$seg", [], IIC_VERW_MEM>, TB;
380 def VERWm : I<0x00, MRM5m, (outs), (ins i16mem:$seg),
381 "verw\t$seg", [], IIC_VERW_REG>, TB;
384 //===----------------------------------------------------------------------===//
385 // Descriptor-table support instructions
387 let SchedRW = [WriteSystem] in {
388 def SGDT16m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
389 "sgdt{w}\t$dst", [], IIC_SGDT>, TB, OpSize, Requires<[Not64BitMode]>;
390 def SGDT32m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
391 "sgdt{l}\t$dst", [], IIC_SGDT>, OpSize16, TB, Requires <[Not64BitMode]>;
392 def SGDT64m : I<0x01, MRM0m, (outs opaque80mem:$dst), (ins),
393 "sgdt{q}\t$dst", [], IIC_SGDT>, TB, Requires <[In64BitMode]>;
394 def SIDT16m : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
395 "sidt{w}\t$dst", [], IIC_SIDT>, TB, OpSize, Requires<[Not64BitMode]>;
396 def SIDT32m : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
397 "sidt{l}\t$dst", []>, OpSize16, TB, Requires <[Not64BitMode]>;
398 def SIDT64m : I<0x01, MRM1m, (outs opaque80mem:$dst), (ins),
399 "sidt{q}\t$dst", []>, TB, Requires <[In64BitMode]>;
400 def SLDT16r : I<0x00, MRM0r, (outs GR16:$dst), (ins),
401 "sldt{w}\t$dst", [], IIC_SLDT>, TB, OpSize;
402 def SLDT16m : I<0x00, MRM0m, (outs i16mem:$dst), (ins),
403 "sldt{w}\t$dst", [], IIC_SLDT>, TB;
404 def SLDT32r : I<0x00, MRM0r, (outs GR32:$dst), (ins),
405 "sldt{l}\t$dst", [], IIC_SLDT>, OpSize16, TB;
407 // LLDT is not interpreted specially in 64-bit mode because there is no sign
409 def SLDT64r : RI<0x00, MRM0r, (outs GR64:$dst), (ins),
410 "sldt{q}\t$dst", [], IIC_SLDT>, TB;
411 def SLDT64m : RI<0x00, MRM0m, (outs i16mem:$dst), (ins),
412 "sldt{q}\t$dst", [], IIC_SLDT>, TB;
414 def LGDT16m : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
415 "lgdt{w}\t$src", [], IIC_LGDT>, TB, OpSize, Requires<[Not64BitMode]>;
416 def LGDT32m : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
417 "lgdt{l}\t$src", [], IIC_LGDT>, OpSize16, TB, Requires<[Not64BitMode]>;
418 def LGDT64m : I<0x01, MRM2m, (outs), (ins opaque80mem:$src),
419 "lgdt{q}\t$src", [], IIC_LGDT>, TB, Requires<[In64BitMode]>;
420 def LIDT16m : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
421 "lidt{w}\t$src", [], IIC_LIDT>, TB, OpSize, Requires<[Not64BitMode]>;
422 def LIDT32m : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
423 "lidt{l}\t$src", [], IIC_LIDT>, OpSize16, TB, Requires<[Not64BitMode]>;
424 def LIDT64m : I<0x01, MRM3m, (outs), (ins opaque80mem:$src),
425 "lidt{q}\t$src", [], IIC_LIDT>, TB, Requires<[In64BitMode]>;
426 def LLDT16r : I<0x00, MRM2r, (outs), (ins GR16:$src),
427 "lldt{w}\t$src", [], IIC_LLDT_REG>, TB;
428 def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
429 "lldt{w}\t$src", [], IIC_LLDT_MEM>, TB;
432 //===----------------------------------------------------------------------===//
433 // Specialized register support
434 let SchedRW = [WriteSystem] in {
435 def WRMSR : I<0x30, RawFrm, (outs), (ins), "wrmsr", [], IIC_WRMSR>, TB;
436 def RDMSR : I<0x32, RawFrm, (outs), (ins), "rdmsr", [], IIC_RDMSR>, TB;
437 def RDPMC : I<0x33, RawFrm, (outs), (ins), "rdpmc", [], IIC_RDPMC>, TB;
439 def SMSW16r : I<0x01, MRM4r, (outs GR16:$dst), (ins),
440 "smsw{w}\t$dst", [], IIC_SMSW>, OpSize, TB;
441 def SMSW32r : I<0x01, MRM4r, (outs GR32:$dst), (ins),
442 "smsw{l}\t$dst", [], IIC_SMSW>, OpSize16, TB;
443 // no m form encodable; use SMSW16m
444 def SMSW64r : RI<0x01, MRM4r, (outs GR64:$dst), (ins),
445 "smsw{q}\t$dst", [], IIC_SMSW>, TB;
447 // For memory operands, there is only a 16-bit form
448 def SMSW16m : I<0x01, MRM4m, (outs i16mem:$dst), (ins),
449 "smsw{w}\t$dst", [], IIC_SMSW>, TB;
451 def LMSW16r : I<0x01, MRM6r, (outs), (ins GR16:$src),
452 "lmsw{w}\t$src", [], IIC_LMSW_MEM>, TB;
453 def LMSW16m : I<0x01, MRM6m, (outs), (ins i16mem:$src),
454 "lmsw{w}\t$src", [], IIC_LMSW_REG>, TB;
456 def CPUID : I<0xA2, RawFrm, (outs), (ins), "cpuid", [], IIC_CPUID>, TB;
459 //===----------------------------------------------------------------------===//
460 // Cache instructions
461 let SchedRW = [WriteSystem] in {
462 def INVD : I<0x08, RawFrm, (outs), (ins), "invd", [], IIC_INVD>, TB;
463 def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", [], IIC_INVD>, TB;
466 //===----------------------------------------------------------------------===//
467 // XSAVE instructions
468 let SchedRW = [WriteSystem] in {
469 let Defs = [RDX, RAX], Uses = [RCX] in
470 def XGETBV : I<0x01, MRM_D0, (outs), (ins), "xgetbv", []>, TB;
472 let Uses = [RDX, RAX, RCX] in
473 def XSETBV : I<0x01, MRM_D1, (outs), (ins), "xsetbv", []>, TB;
475 let Uses = [RDX, RAX] in {
476 def XSAVE : I<0xAE, MRM4m, (outs opaque512mem:$dst), (ins),
477 "xsave\t$dst", []>, TB;
478 def XSAVE64 : RI<0xAE, MRM4m, (outs opaque512mem:$dst), (ins),
479 "xsave{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
480 def XRSTOR : I<0xAE, MRM5m, (outs), (ins opaque512mem:$dst),
481 "xrstor\t$dst", []>, TB;
482 def XRSTOR64 : RI<0xAE, MRM5m, (outs), (ins opaque512mem:$dst),
483 "xrstor{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
484 def XSAVEOPT : I<0xAE, MRM6m, (outs opaque512mem:$dst), (ins),
485 "xsaveopt\t$dst", []>, TB;
486 def XSAVEOPT64 : RI<0xAE, MRM6m, (outs opaque512mem:$dst), (ins),
487 "xsaveopt{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
491 //===----------------------------------------------------------------------===//
492 // VIA PadLock crypto instructions
493 let Defs = [RAX, RDI], Uses = [RDX, RDI] in
494 def XSTORE : I<0xc0, RawFrm, (outs), (ins), "xstore", []>, A7;
496 def : InstAlias<"xstorerng", (XSTORE)>;
498 let Defs = [RSI, RDI], Uses = [RBX, RDX, RSI, RDI] in {
499 def XCRYPTECB : I<0xc8, RawFrm, (outs), (ins), "xcryptecb", []>, A7;
500 def XCRYPTCBC : I<0xd0, RawFrm, (outs), (ins), "xcryptcbc", []>, A7;
501 def XCRYPTCTR : I<0xd8, RawFrm, (outs), (ins), "xcryptctr", []>, A7;
502 def XCRYPTCFB : I<0xe0, RawFrm, (outs), (ins), "xcryptcfb", []>, A7;
503 def XCRYPTOFB : I<0xe8, RawFrm, (outs), (ins), "xcryptofb", []>, A7;
506 let Defs = [RAX, RSI, RDI], Uses = [RAX, RSI, RDI] in {
507 def XSHA1 : I<0xc8, RawFrm, (outs), (ins), "xsha1", []>, A6;
508 def XSHA256 : I<0xd0, RawFrm, (outs), (ins), "xsha256", []>, A6;
510 let Defs = [RAX, RDX, RSI], Uses = [RAX, RSI] in
511 def MONTMUL : I<0xc0, RawFrm, (outs), (ins), "montmul", []>, A6;
513 //===----------------------------------------------------------------------===//
514 // FS/GS Base Instructions
515 let Predicates = [HasFSGSBase, In64BitMode] in {
516 def RDFSBASE : I<0xAE, MRM0r, (outs GR32:$dst), (ins),
518 [(set GR32:$dst, (int_x86_rdfsbase_32))]>, TB, XS;
519 def RDFSBASE64 : RI<0xAE, MRM0r, (outs GR64:$dst), (ins),
521 [(set GR64:$dst, (int_x86_rdfsbase_64))]>, TB, XS;
522 def RDGSBASE : I<0xAE, MRM1r, (outs GR32:$dst), (ins),
524 [(set GR32:$dst, (int_x86_rdgsbase_32))]>, TB, XS;
525 def RDGSBASE64 : RI<0xAE, MRM1r, (outs GR64:$dst), (ins),
527 [(set GR64:$dst, (int_x86_rdgsbase_64))]>, TB, XS;
528 def WRFSBASE : I<0xAE, MRM2r, (outs), (ins GR32:$src),
530 [(int_x86_wrfsbase_32 GR32:$src)]>, TB, XS;
531 def WRFSBASE64 : RI<0xAE, MRM2r, (outs), (ins GR64:$src),
533 [(int_x86_wrfsbase_64 GR64:$src)]>, TB, XS;
534 def WRGSBASE : I<0xAE, MRM3r, (outs), (ins GR32:$src),
536 [(int_x86_wrgsbase_32 GR32:$src)]>, TB, XS;
537 def WRGSBASE64 : RI<0xAE, MRM3r, (outs), (ins GR64:$src),
539 [(int_x86_wrgsbase_64 GR64:$src)]>, TB, XS;
542 //===----------------------------------------------------------------------===//
543 // INVPCID Instruction
544 def INVPCID32 : I<0x82, MRMSrcMem, (outs), (ins GR32:$src1, i128mem:$src2),
545 "invpcid\t{$src2, $src1|$src1, $src2}", []>, T8PD,
546 Requires<[Not64BitMode]>;
547 def INVPCID64 : I<0x82, MRMSrcMem, (outs), (ins GR64:$src1, i128mem:$src2),
548 "invpcid\t{$src2, $src1|$src1, $src2}", []>, T8PD,
549 Requires<[In64BitMode]>;
551 //===----------------------------------------------------------------------===//
553 let Defs = [EFLAGS], Uses = [EFLAGS] in {
554 def CLAC : I<0x01, MRM_CA, (outs), (ins), "clac", []>, TB;
555 def STAC : I<0x01, MRM_CB, (outs), (ins), "stac", []>, TB;