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, RawFrmDst, (outs dstidx8:$dst), (ins),
120 "insb\t{%dx, $dst|$dst, dx}", [], IIC_INS>;
121 def IN16 : I<0x6D, RawFrmDst, (outs dstidx16:$dst), (ins),
122 "insw\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize;
123 def IN32 : I<0x6D, RawFrmDst, (outs dstidx32:$dst), (ins),
124 "ins{l|d}\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize16;
127 //===----------------------------------------------------------------------===//
128 // Moves to and from debug registers
130 let SchedRW = [WriteSystem] in {
131 def MOV32rd : I<0x21, MRMDestReg, (outs GR32:$dst), (ins DEBUG_REG:$src),
132 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_DR>, TB,
133 Requires<[Not64BitMode]>;
134 def MOV64rd : I<0x21, MRMDestReg, (outs GR64:$dst), (ins DEBUG_REG:$src),
135 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_DR>, TB,
136 Requires<[In64BitMode]>;
138 def MOV32dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR32:$src),
139 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB,
140 Requires<[Not64BitMode]>;
141 def MOV64dr : I<0x23, MRMSrcReg, (outs DEBUG_REG:$dst), (ins GR64:$src),
142 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_DR_REG>, TB,
143 Requires<[In64BitMode]>;
146 //===----------------------------------------------------------------------===//
147 // Moves to and from control registers
149 let SchedRW = [WriteSystem] in {
150 def MOV32rc : I<0x20, MRMDestReg, (outs GR32:$dst), (ins CONTROL_REG:$src),
151 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_CR>, TB,
152 Requires<[Not64BitMode]>;
153 def MOV64rc : I<0x20, MRMDestReg, (outs GR64:$dst), (ins CONTROL_REG:$src),
154 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_CR>, TB,
155 Requires<[In64BitMode]>;
157 def MOV32cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR32:$src),
158 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB,
159 Requires<[Not64BitMode]>;
160 def MOV64cr : I<0x22, MRMSrcReg, (outs CONTROL_REG:$dst), (ins GR64:$src),
161 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_CR_REG>, TB,
162 Requires<[In64BitMode]>;
165 //===----------------------------------------------------------------------===//
166 // Segment override instruction prefixes
168 def CS_PREFIX : I<0x2E, RawFrm, (outs), (ins), "cs", []>;
169 def SS_PREFIX : I<0x36, RawFrm, (outs), (ins), "ss", []>;
170 def DS_PREFIX : I<0x3E, RawFrm, (outs), (ins), "ds", []>;
171 def ES_PREFIX : I<0x26, RawFrm, (outs), (ins), "es", []>;
172 def FS_PREFIX : I<0x64, RawFrm, (outs), (ins), "fs", []>;
173 def GS_PREFIX : I<0x65, RawFrm, (outs), (ins), "gs", []>;
176 //===----------------------------------------------------------------------===//
177 // Moves to and from segment registers.
180 let SchedRW = [WriteMove] in {
181 def MOV16rs : I<0x8C, MRMDestReg, (outs GR16:$dst), (ins SEGMENT_REG:$src),
182 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize;
183 def MOV32rs : I<0x8C, MRMDestReg, (outs GR32:$dst), (ins SEGMENT_REG:$src),
184 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>, OpSize16;
185 def MOV64rs : RI<0x8C, MRMDestReg, (outs GR64:$dst), (ins SEGMENT_REG:$src),
186 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_REG_SR>;
188 def MOV16ms : I<0x8C, MRMDestMem, (outs i16mem:$dst), (ins SEGMENT_REG:$src),
189 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize;
190 def MOV32ms : I<0x8C, MRMDestMem, (outs i32mem:$dst), (ins SEGMENT_REG:$src),
191 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>, OpSize16;
192 def MOV64ms : RI<0x8C, MRMDestMem, (outs i64mem:$dst), (ins SEGMENT_REG:$src),
193 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_MEM_SR>;
195 def MOV16sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR16:$src),
196 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize;
197 def MOV32sr : I<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR32:$src),
198 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>, OpSize16;
199 def MOV64sr : RI<0x8E, MRMSrcReg, (outs SEGMENT_REG:$dst), (ins GR64:$src),
200 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_REG>;
202 def MOV16sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i16mem:$src),
203 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize;
204 def MOV32sm : I<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i32mem:$src),
205 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>, OpSize16;
206 def MOV64sm : RI<0x8E, MRMSrcMem, (outs SEGMENT_REG:$dst), (ins i64mem:$src),
207 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV_SR_MEM>;
210 //===----------------------------------------------------------------------===//
211 // Segmentation support instructions.
213 let SchedRW = [WriteSystem] in {
214 def SWAPGS : I<0x01, MRM_F8, (outs), (ins), "swapgs", [], IIC_SWAPGS>, TB;
216 def LAR16rm : I<0x02, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
217 "lar{w}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB, OpSize;
218 def LAR16rr : I<0x02, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
219 "lar{w}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB, OpSize;
221 // i16mem operand in LAR32rm and GR32 operand in LAR32rr is not a typo.
222 def LAR32rm : I<0x02, MRMSrcMem, (outs GR32:$dst), (ins i16mem:$src),
223 "lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB,
225 def LAR32rr : I<0x02, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
226 "lar{l}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB,
228 // i16mem operand in LAR64rm and GR32 operand in LAR32rr is not a typo.
229 def LAR64rm : RI<0x02, MRMSrcMem, (outs GR64:$dst), (ins i16mem:$src),
230 "lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RM>, TB;
231 def LAR64rr : RI<0x02, MRMSrcReg, (outs GR64:$dst), (ins GR32:$src),
232 "lar{q}\t{$src, $dst|$dst, $src}", [], IIC_LAR_RR>, TB;
234 def LSL16rm : I<0x03, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
235 "lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB, OpSize;
236 def LSL16rr : I<0x03, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
237 "lsl{w}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB, OpSize;
238 def LSL32rm : I<0x03, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
239 "lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB,
241 def LSL32rr : I<0x03, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
242 "lsl{l}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB,
244 def LSL64rm : RI<0x03, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
245 "lsl{q}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RM>, TB;
246 def LSL64rr : RI<0x03, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
247 "lsl{q}\t{$src, $dst|$dst, $src}", [], IIC_LSL_RR>, TB;
249 def INVLPG : I<0x01, MRM7m, (outs), (ins i8mem:$addr), "invlpg\t$addr",
252 def STR16r : I<0x00, MRM1r, (outs GR16:$dst), (ins),
253 "str{w}\t$dst", [], IIC_STR>, TB, OpSize;
254 def STR32r : I<0x00, MRM1r, (outs GR32:$dst), (ins),
255 "str{l}\t$dst", [], IIC_STR>, TB, OpSize16;
256 def STR64r : RI<0x00, MRM1r, (outs GR64:$dst), (ins),
257 "str{q}\t$dst", [], IIC_STR>, TB;
258 def STRm : I<0x00, MRM1m, (outs i16mem:$dst), (ins),
259 "str{w}\t$dst", [], IIC_STR>, TB;
261 def LTRr : I<0x00, MRM3r, (outs), (ins GR16:$src),
262 "ltr{w}\t$src", [], IIC_LTR>, TB;
263 def LTRm : I<0x00, MRM3m, (outs), (ins i16mem:$src),
264 "ltr{w}\t$src", [], IIC_LTR>, TB;
266 def PUSHCS16 : I<0x0E, RawFrm, (outs), (ins),
267 "push{w}\t{%cs|cs}", [], IIC_PUSH_SR>,
268 OpSize, Requires<[Not64BitMode]>;
269 def PUSHCS32 : I<0x0E, RawFrm, (outs), (ins),
270 "push{l}\t{%cs|cs}", [], IIC_PUSH_CS>,
271 OpSize16, Requires<[Not64BitMode]>;
272 def PUSHSS16 : I<0x16, RawFrm, (outs), (ins),
273 "push{w}\t{%ss|ss}", [], IIC_PUSH_SR>,
274 OpSize, Requires<[Not64BitMode]>;
275 def PUSHSS32 : I<0x16, RawFrm, (outs), (ins),
276 "push{l}\t{%ss|ss}", [], IIC_PUSH_SR>,
277 OpSize16, Requires<[Not64BitMode]>;
278 def PUSHDS16 : I<0x1E, RawFrm, (outs), (ins),
279 "push{w}\t{%ds|ds}", [], IIC_PUSH_SR>,
280 OpSize, Requires<[Not64BitMode]>;
281 def PUSHDS32 : I<0x1E, RawFrm, (outs), (ins),
282 "push{l}\t{%ds|ds}", [], IIC_PUSH_SR>,
283 OpSize16, Requires<[Not64BitMode]>;
284 def PUSHES16 : I<0x06, RawFrm, (outs), (ins),
285 "push{w}\t{%es|es}", [], IIC_PUSH_SR>,
286 OpSize, Requires<[Not64BitMode]>;
287 def PUSHES32 : I<0x06, RawFrm, (outs), (ins),
288 "push{l}\t{%es|es}", [], IIC_PUSH_SR>,
289 OpSize16, Requires<[Not64BitMode]>;
290 def PUSHFS16 : I<0xa0, RawFrm, (outs), (ins),
291 "push{w}\t{%fs|fs}", [], IIC_PUSH_SR>, OpSize, TB;
292 def PUSHFS32 : I<0xa0, RawFrm, (outs), (ins),
293 "push{l}\t{%fs|fs}", [], IIC_PUSH_SR>, TB,
294 OpSize16, Requires<[Not64BitMode]>;
295 def PUSHGS16 : I<0xa8, RawFrm, (outs), (ins),
296 "push{w}\t{%gs|gs}", [], IIC_PUSH_SR>, OpSize, TB;
297 def PUSHGS32 : I<0xa8, RawFrm, (outs), (ins),
298 "push{l}\t{%gs|gs}", [], IIC_PUSH_SR>, TB,
299 OpSize16, Requires<[Not64BitMode]>;
300 def PUSHFS64 : I<0xa0, RawFrm, (outs), (ins),
301 "push{q}\t{%fs|fs}", [], IIC_PUSH_SR>, TB, Requires<[In64BitMode]>;
302 def PUSHGS64 : I<0xa8, RawFrm, (outs), (ins),
303 "push{q}\t{%gs|gs}", [], IIC_PUSH_SR>, TB, Requires<[In64BitMode]>;
305 // No "pop cs" instruction.
306 def POPSS16 : I<0x17, RawFrm, (outs), (ins),
307 "pop{w}\t{%ss|ss}", [], IIC_POP_SR_SS>,
308 OpSize, Requires<[Not64BitMode]>;
309 def POPSS32 : I<0x17, RawFrm, (outs), (ins),
310 "pop{l}\t{%ss|ss}", [], IIC_POP_SR_SS>,
311 OpSize16, Requires<[Not64BitMode]>;
313 def POPDS16 : I<0x1F, RawFrm, (outs), (ins),
314 "pop{w}\t{%ds|ds}", [], IIC_POP_SR>,
315 OpSize, Requires<[Not64BitMode]>;
316 def POPDS32 : I<0x1F, RawFrm, (outs), (ins),
317 "pop{l}\t{%ds|ds}", [], IIC_POP_SR>,
318 OpSize16, Requires<[Not64BitMode]>;
320 def POPES16 : I<0x07, RawFrm, (outs), (ins),
321 "pop{w}\t{%es|es}", [], IIC_POP_SR>,
322 OpSize, Requires<[Not64BitMode]>;
323 def POPES32 : I<0x07, RawFrm, (outs), (ins),
324 "pop{l}\t{%es|es}", [], IIC_POP_SR>,
325 OpSize16, Requires<[Not64BitMode]>;
327 def POPFS16 : I<0xa1, RawFrm, (outs), (ins),
328 "pop{w}\t{%fs|fs}", [], IIC_POP_SR>, OpSize, TB;
329 def POPFS32 : I<0xa1, RawFrm, (outs), (ins),
330 "pop{l}\t{%fs|fs}", [], IIC_POP_SR>, TB,
331 OpSize16, Requires<[Not64BitMode]>;
332 def POPFS64 : I<0xa1, RawFrm, (outs), (ins),
333 "pop{q}\t{%fs|fs}", [], IIC_POP_SR>, TB, Requires<[In64BitMode]>;
335 def POPGS16 : I<0xa9, RawFrm, (outs), (ins),
336 "pop{w}\t{%gs|gs}", [], IIC_POP_SR>, OpSize, TB;
337 def POPGS32 : I<0xa9, RawFrm, (outs), (ins),
338 "pop{l}\t{%gs|gs}", [], IIC_POP_SR>, TB,
339 OpSize16, Requires<[Not64BitMode]>;
340 def POPGS64 : I<0xa9, RawFrm, (outs), (ins),
341 "pop{q}\t{%gs|gs}", [], IIC_POP_SR>, TB, Requires<[In64BitMode]>;
344 def LDS16rm : I<0xc5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
345 "lds{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize;
346 def LDS32rm : I<0xc5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
347 "lds{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize16;
349 def LSS16rm : I<0xb2, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
350 "lss{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
351 def LSS32rm : I<0xb2, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
352 "lss{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
353 def LSS64rm : RI<0xb2, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
354 "lss{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
356 def LES16rm : I<0xc4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
357 "les{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize;
358 def LES32rm : I<0xc4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
359 "les{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, OpSize16;
361 def LFS16rm : I<0xb4, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
362 "lfs{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
363 def LFS32rm : I<0xb4, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
364 "lfs{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
365 def LFS64rm : RI<0xb4, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
366 "lfs{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
368 def LGS16rm : I<0xb5, MRMSrcMem, (outs GR16:$dst), (ins opaque32mem:$src),
369 "lgs{w}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize;
370 def LGS32rm : I<0xb5, MRMSrcMem, (outs GR32:$dst), (ins opaque48mem:$src),
371 "lgs{l}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB, OpSize16;
373 def LGS64rm : RI<0xb5, MRMSrcMem, (outs GR64:$dst), (ins opaque80mem:$src),
374 "lgs{q}\t{$src, $dst|$dst, $src}", [], IIC_LXS>, TB;
377 def VERRr : I<0x00, MRM4r, (outs), (ins GR16:$seg),
378 "verr\t$seg", [], IIC_VERR>, TB;
379 def VERRm : I<0x00, MRM4m, (outs), (ins i16mem:$seg),
380 "verr\t$seg", [], IIC_VERR>, TB;
381 def VERWr : I<0x00, MRM5r, (outs), (ins GR16:$seg),
382 "verw\t$seg", [], IIC_VERW_MEM>, TB;
383 def VERWm : I<0x00, MRM5m, (outs), (ins i16mem:$seg),
384 "verw\t$seg", [], IIC_VERW_REG>, TB;
387 //===----------------------------------------------------------------------===//
388 // Descriptor-table support instructions
390 let SchedRW = [WriteSystem] in {
391 def SGDT16m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
392 "sgdt{w}\t$dst", [], IIC_SGDT>, TB, OpSize, Requires<[Not64BitMode]>;
393 def SGDT32m : I<0x01, MRM0m, (outs opaque48mem:$dst), (ins),
394 "sgdt{l}\t$dst", [], IIC_SGDT>, OpSize16, TB, Requires <[Not64BitMode]>;
395 def SGDT64m : I<0x01, MRM0m, (outs opaque80mem:$dst), (ins),
396 "sgdt{q}\t$dst", [], IIC_SGDT>, TB, Requires <[In64BitMode]>;
397 def SIDT16m : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
398 "sidt{w}\t$dst", [], IIC_SIDT>, TB, OpSize, Requires<[Not64BitMode]>;
399 def SIDT32m : I<0x01, MRM1m, (outs opaque48mem:$dst), (ins),
400 "sidt{l}\t$dst", []>, OpSize16, TB, Requires <[Not64BitMode]>;
401 def SIDT64m : I<0x01, MRM1m, (outs opaque80mem:$dst), (ins),
402 "sidt{q}\t$dst", []>, TB, Requires <[In64BitMode]>;
403 def SLDT16r : I<0x00, MRM0r, (outs GR16:$dst), (ins),
404 "sldt{w}\t$dst", [], IIC_SLDT>, TB, OpSize;
405 def SLDT16m : I<0x00, MRM0m, (outs i16mem:$dst), (ins),
406 "sldt{w}\t$dst", [], IIC_SLDT>, TB;
407 def SLDT32r : I<0x00, MRM0r, (outs GR32:$dst), (ins),
408 "sldt{l}\t$dst", [], IIC_SLDT>, OpSize16, TB;
410 // LLDT is not interpreted specially in 64-bit mode because there is no sign
412 def SLDT64r : RI<0x00, MRM0r, (outs GR64:$dst), (ins),
413 "sldt{q}\t$dst", [], IIC_SLDT>, TB;
414 def SLDT64m : RI<0x00, MRM0m, (outs i16mem:$dst), (ins),
415 "sldt{q}\t$dst", [], IIC_SLDT>, TB;
417 def LGDT16m : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
418 "lgdt{w}\t$src", [], IIC_LGDT>, TB, OpSize, Requires<[Not64BitMode]>;
419 def LGDT32m : I<0x01, MRM2m, (outs), (ins opaque48mem:$src),
420 "lgdt{l}\t$src", [], IIC_LGDT>, OpSize16, TB, Requires<[Not64BitMode]>;
421 def LGDT64m : I<0x01, MRM2m, (outs), (ins opaque80mem:$src),
422 "lgdt{q}\t$src", [], IIC_LGDT>, TB, Requires<[In64BitMode]>;
423 def LIDT16m : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
424 "lidt{w}\t$src", [], IIC_LIDT>, TB, OpSize, Requires<[Not64BitMode]>;
425 def LIDT32m : I<0x01, MRM3m, (outs), (ins opaque48mem:$src),
426 "lidt{l}\t$src", [], IIC_LIDT>, OpSize16, TB, Requires<[Not64BitMode]>;
427 def LIDT64m : I<0x01, MRM3m, (outs), (ins opaque80mem:$src),
428 "lidt{q}\t$src", [], IIC_LIDT>, TB, Requires<[In64BitMode]>;
429 def LLDT16r : I<0x00, MRM2r, (outs), (ins GR16:$src),
430 "lldt{w}\t$src", [], IIC_LLDT_REG>, TB;
431 def LLDT16m : I<0x00, MRM2m, (outs), (ins i16mem:$src),
432 "lldt{w}\t$src", [], IIC_LLDT_MEM>, TB;
435 //===----------------------------------------------------------------------===//
436 // Specialized register support
437 let SchedRW = [WriteSystem] in {
438 def WRMSR : I<0x30, RawFrm, (outs), (ins), "wrmsr", [], IIC_WRMSR>, TB;
439 def RDMSR : I<0x32, RawFrm, (outs), (ins), "rdmsr", [], IIC_RDMSR>, TB;
440 def RDPMC : I<0x33, RawFrm, (outs), (ins), "rdpmc", [], IIC_RDPMC>, TB;
442 def SMSW16r : I<0x01, MRM4r, (outs GR16:$dst), (ins),
443 "smsw{w}\t$dst", [], IIC_SMSW>, OpSize, TB;
444 def SMSW32r : I<0x01, MRM4r, (outs GR32:$dst), (ins),
445 "smsw{l}\t$dst", [], IIC_SMSW>, OpSize16, TB;
446 // no m form encodable; use SMSW16m
447 def SMSW64r : RI<0x01, MRM4r, (outs GR64:$dst), (ins),
448 "smsw{q}\t$dst", [], IIC_SMSW>, TB;
450 // For memory operands, there is only a 16-bit form
451 def SMSW16m : I<0x01, MRM4m, (outs i16mem:$dst), (ins),
452 "smsw{w}\t$dst", [], IIC_SMSW>, TB;
454 def LMSW16r : I<0x01, MRM6r, (outs), (ins GR16:$src),
455 "lmsw{w}\t$src", [], IIC_LMSW_MEM>, TB;
456 def LMSW16m : I<0x01, MRM6m, (outs), (ins i16mem:$src),
457 "lmsw{w}\t$src", [], IIC_LMSW_REG>, TB;
459 let Defs = [EAX, EBX, ECX, EDX], Uses = [EAX, ECX] in
460 def CPUID32 : I<0xA2, RawFrm, (outs), (ins), "cpuid", [], IIC_CPUID>, TB,
461 Requires<[Not64BitMode]>;
462 let Defs = [RAX, RBX, RCX, RDX], Uses = [RAX, RCX] in
463 def CPUID64 : I<0xA2, RawFrm, (outs), (ins), "cpuid", [], IIC_CPUID>, TB,
464 Requires<[In64BitMode]>;
467 //===----------------------------------------------------------------------===//
468 // Cache instructions
469 let SchedRW = [WriteSystem] in {
470 def INVD : I<0x08, RawFrm, (outs), (ins), "invd", [], IIC_INVD>, TB;
471 def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", [], IIC_INVD>, TB;
474 //===----------------------------------------------------------------------===//
475 // XSAVE instructions
476 let SchedRW = [WriteSystem] in {
477 let Defs = [RDX, RAX], Uses = [RCX] in
478 def XGETBV : I<0x01, MRM_D0, (outs), (ins), "xgetbv", []>, TB;
480 let Uses = [RDX, RAX, RCX] in
481 def XSETBV : I<0x01, MRM_D1, (outs), (ins), "xsetbv", []>, TB;
483 let Uses = [RDX, RAX] in {
484 def XSAVE : I<0xAE, MRM4m, (outs opaque512mem:$dst), (ins),
485 "xsave\t$dst", []>, TB;
486 def XSAVE64 : RI<0xAE, MRM4m, (outs opaque512mem:$dst), (ins),
487 "xsave{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
488 def XRSTOR : I<0xAE, MRM5m, (outs), (ins opaque512mem:$dst),
489 "xrstor\t$dst", []>, TB;
490 def XRSTOR64 : RI<0xAE, MRM5m, (outs), (ins opaque512mem:$dst),
491 "xrstor{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
492 def XSAVEOPT : I<0xAE, MRM6m, (outs opaque512mem:$dst), (ins),
493 "xsaveopt\t$dst", []>, TB;
494 def XSAVEOPT64 : RI<0xAE, MRM6m, (outs opaque512mem:$dst), (ins),
495 "xsaveopt{q|64}\t$dst", []>, TB, Requires<[In64BitMode]>;
499 //===----------------------------------------------------------------------===//
500 // VIA PadLock crypto instructions
501 let Defs = [RAX, RDI], Uses = [RDX, RDI] in
502 def XSTORE : I<0xc0, RawFrm, (outs), (ins), "xstore", []>, A7;
504 def : InstAlias<"xstorerng", (XSTORE)>;
506 let Defs = [RSI, RDI], Uses = [RBX, RDX, RSI, RDI] in {
507 def XCRYPTECB : I<0xc8, RawFrm, (outs), (ins), "xcryptecb", []>, A7;
508 def XCRYPTCBC : I<0xd0, RawFrm, (outs), (ins), "xcryptcbc", []>, A7;
509 def XCRYPTCTR : I<0xd8, RawFrm, (outs), (ins), "xcryptctr", []>, A7;
510 def XCRYPTCFB : I<0xe0, RawFrm, (outs), (ins), "xcryptcfb", []>, A7;
511 def XCRYPTOFB : I<0xe8, RawFrm, (outs), (ins), "xcryptofb", []>, A7;
514 let Defs = [RAX, RSI, RDI], Uses = [RAX, RSI, RDI] in {
515 def XSHA1 : I<0xc8, RawFrm, (outs), (ins), "xsha1", []>, A6;
516 def XSHA256 : I<0xd0, RawFrm, (outs), (ins), "xsha256", []>, A6;
518 let Defs = [RAX, RDX, RSI], Uses = [RAX, RSI] in
519 def MONTMUL : I<0xc0, RawFrm, (outs), (ins), "montmul", []>, A6;
521 //===----------------------------------------------------------------------===//
522 // FS/GS Base Instructions
523 let Predicates = [HasFSGSBase, In64BitMode] in {
524 def RDFSBASE : I<0xAE, MRM0r, (outs GR32:$dst), (ins),
526 [(set GR32:$dst, (int_x86_rdfsbase_32))]>, TB, XS;
527 def RDFSBASE64 : RI<0xAE, MRM0r, (outs GR64:$dst), (ins),
529 [(set GR64:$dst, (int_x86_rdfsbase_64))]>, TB, XS;
530 def RDGSBASE : I<0xAE, MRM1r, (outs GR32:$dst), (ins),
532 [(set GR32:$dst, (int_x86_rdgsbase_32))]>, TB, XS;
533 def RDGSBASE64 : RI<0xAE, MRM1r, (outs GR64:$dst), (ins),
535 [(set GR64:$dst, (int_x86_rdgsbase_64))]>, TB, XS;
536 def WRFSBASE : I<0xAE, MRM2r, (outs), (ins GR32:$src),
538 [(int_x86_wrfsbase_32 GR32:$src)]>, TB, XS;
539 def WRFSBASE64 : RI<0xAE, MRM2r, (outs), (ins GR64:$src),
541 [(int_x86_wrfsbase_64 GR64:$src)]>, TB, XS;
542 def WRGSBASE : I<0xAE, MRM3r, (outs), (ins GR32:$src),
544 [(int_x86_wrgsbase_32 GR32:$src)]>, TB, XS;
545 def WRGSBASE64 : RI<0xAE, MRM3r, (outs), (ins GR64:$src),
547 [(int_x86_wrgsbase_64 GR64:$src)]>, TB, XS;
550 //===----------------------------------------------------------------------===//
551 // INVPCID Instruction
552 def INVPCID32 : I<0x82, MRMSrcMem, (outs), (ins GR32:$src1, i128mem:$src2),
553 "invpcid\t{$src2, $src1|$src1, $src2}", []>, T8PD,
554 Requires<[Not64BitMode]>;
555 def INVPCID64 : I<0x82, MRMSrcMem, (outs), (ins GR64:$src1, i128mem:$src2),
556 "invpcid\t{$src2, $src1|$src1, $src2}", []>, T8PD,
557 Requires<[In64BitMode]>;
559 //===----------------------------------------------------------------------===//
561 let Defs = [EFLAGS], Uses = [EFLAGS] in {
562 def CLAC : I<0x01, MRM_CA, (outs), (ins), "clac", []>, TB;
563 def STAC : I<0x01, MRM_CB, (outs), (ins), "stac", []>, TB;