1 //===-- X86InstrFormats.td - X86 Instruction Formats -------*- 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 //===----------------------------------------------------------------------===//
11 // X86 Instruction Format Definitions.
14 // Format specifies the encoding used by the instruction. This is part of the
15 // ad-hoc solution used to emit machine instruction encodings by our machine
17 class Format<bits<7> val> {
21 def Pseudo : Format<0>; def RawFrm : Format<1>;
22 def AddRegFrm : Format<2>; def MRMDestReg : Format<3>;
23 def MRMDestMem : Format<4>; def MRMSrcReg : Format<5>;
24 def MRMSrcMem : Format<6>; def RawFrmMemOffs : Format<7>;
25 def RawFrmSrc : Format<8>; def RawFrmDst : Format<9>;
26 def RawFrmDstSrc: Format<10>;
27 def RawFrmImm8 : Format<11>;
28 def RawFrmImm16 : Format<12>;
29 def MRMXr : Format<14>; def MRMXm : Format<15>;
30 def MRM0r : Format<16>; def MRM1r : Format<17>; def MRM2r : Format<18>;
31 def MRM3r : Format<19>; def MRM4r : Format<20>; def MRM5r : Format<21>;
32 def MRM6r : Format<22>; def MRM7r : Format<23>;
33 def MRM0m : Format<24>; def MRM1m : Format<25>; def MRM2m : Format<26>;
34 def MRM3m : Format<27>; def MRM4m : Format<28>; def MRM5m : Format<29>;
35 def MRM6m : Format<30>; def MRM7m : Format<31>;
36 def MRM_C0 : Format<32>; def MRM_C1 : Format<33>; def MRM_C2 : Format<34>;
37 def MRM_C3 : Format<35>; def MRM_C4 : Format<36>; def MRM_C8 : Format<37>;
38 def MRM_C9 : Format<38>; def MRM_CA : Format<39>; def MRM_CB : Format<40>;
39 def MRM_D0 : Format<41>; def MRM_D1 : Format<42>; def MRM_D4 : Format<43>;
40 def MRM_D5 : Format<44>; def MRM_D6 : Format<45>; def MRM_D8 : Format<46>;
41 def MRM_D9 : Format<47>; def MRM_DA : Format<48>; def MRM_DB : Format<49>;
42 def MRM_DC : Format<50>; def MRM_DD : Format<51>; def MRM_DE : Format<52>;
43 def MRM_DF : Format<53>; def MRM_E0 : Format<54>; def MRM_E1 : Format<55>;
44 def MRM_E2 : Format<56>; def MRM_E3 : Format<57>; def MRM_E4 : Format<58>;
45 def MRM_E5 : Format<59>; def MRM_E8 : Format<60>; def MRM_E9 : Format<61>;
46 def MRM_EA : Format<62>; def MRM_EB : Format<63>; def MRM_EC : Format<64>;
47 def MRM_ED : Format<65>; def MRM_EE : Format<66>; def MRM_F0 : Format<67>;
48 def MRM_F1 : Format<68>; def MRM_F2 : Format<69>; def MRM_F3 : Format<70>;
49 def MRM_F4 : Format<71>; def MRM_F5 : Format<72>; def MRM_F6 : Format<73>;
50 def MRM_F7 : Format<74>; def MRM_F8 : Format<75>; def MRM_F9 : Format<76>;
51 def MRM_FA : Format<77>; def MRM_FB : Format<78>; def MRM_FC : Format<79>;
52 def MRM_FD : Format<80>; def MRM_FE : Format<81>; def MRM_FF : Format<82>;
54 // ImmType - This specifies the immediate type used by an instruction. This is
55 // part of the ad-hoc solution used to emit machine instruction encodings by our
56 // machine code emitter.
57 class ImmType<bits<4> val> {
60 def NoImm : ImmType<0>;
61 def Imm8 : ImmType<1>;
62 def Imm8PCRel : ImmType<2>;
63 def Imm16 : ImmType<3>;
64 def Imm16PCRel : ImmType<4>;
65 def Imm32 : ImmType<5>;
66 def Imm32PCRel : ImmType<6>;
67 def Imm32S : ImmType<7>;
68 def Imm64 : ImmType<8>;
70 // FPFormat - This specifies what form this FP instruction has. This is used by
71 // the Floating-Point stackifier pass.
72 class FPFormat<bits<3> val> {
75 def NotFP : FPFormat<0>;
76 def ZeroArgFP : FPFormat<1>;
77 def OneArgFP : FPFormat<2>;
78 def OneArgFPRW : FPFormat<3>;
79 def TwoArgFP : FPFormat<4>;
80 def CompareFP : FPFormat<5>;
81 def CondMovFP : FPFormat<6>;
82 def SpecialFP : FPFormat<7>;
84 // Class specifying the SSE execution domain, used by the SSEDomainFix pass.
85 // Keep in sync with tables in X86InstrInfo.cpp.
86 class Domain<bits<2> val> {
89 def GenericDomain : Domain<0>;
90 def SSEPackedSingle : Domain<1>;
91 def SSEPackedDouble : Domain<2>;
92 def SSEPackedInt : Domain<3>;
94 // Class specifying the vector form of the decompressed
95 // displacement of 8-bit.
96 class CD8VForm<bits<3> val> {
99 def CD8VF : CD8VForm<0>; // v := VL
100 def CD8VH : CD8VForm<1>; // v := VL/2
101 def CD8VQ : CD8VForm<2>; // v := VL/4
102 def CD8VO : CD8VForm<3>; // v := VL/8
103 def CD8VT1 : CD8VForm<4>; // v := 1
104 def CD8VT2 : CD8VForm<5>; // v := 2
105 def CD8VT4 : CD8VForm<6>; // v := 4
106 def CD8VT8 : CD8VForm<7>; // v := 8
108 // Class specifying the prefix used an opcode extension.
109 class Prefix<bits<3> val> {
112 def NoPrfx : Prefix<0>;
118 // Class specifying the opcode map.
119 class Map<bits<3> val> {
130 // Class specifying the encoding
131 class Encoding<bits<2> val> {
134 def EncNormal : Encoding<0>;
135 def EncVEX : Encoding<1>;
136 def EncXOP : Encoding<2>;
137 def EncEVEX : Encoding<3>;
139 // Operand size for encodings that change based on mode.
140 class OperandSize<bits<2> val> {
143 def OpSizeFixed : OperandSize<0>; // Never needs a 0x66 prefix.
144 def OpSize16 : OperandSize<1>; // Needs 0x66 prefix in 32-bit mode.
145 def OpSize32 : OperandSize<2>; // Needs 0x66 prefix in 16-bit mode.
147 // Prefix byte classes which are used to indicate to the ad-hoc machine code
148 // emitter that various prefix bytes are required.
149 class OpSize16 { OperandSize OpSize = OpSize16; }
150 class OpSize32 { OperandSize OpSize = OpSize32; }
151 class AdSize { bit hasAdSizePrefix = 1; }
152 class REX_W { bit hasREX_WPrefix = 1; }
153 class LOCK { bit hasLockPrefix = 1; }
154 class REP { bit hasREPPrefix = 1; }
155 class TB { Map OpMap = TB; }
156 class T8 { Map OpMap = T8; }
157 class TA { Map OpMap = TA; }
158 class XOP8 { Map OpMap = XOP8; Prefix OpPrefix = PS; }
159 class XOP9 { Map OpMap = XOP9; Prefix OpPrefix = PS; }
160 class XOPA { Map OpMap = XOPA; Prefix OpPrefix = PS; }
161 class PS : TB { Prefix OpPrefix = PS; }
162 class PD : TB { Prefix OpPrefix = PD; }
163 class XD : TB { Prefix OpPrefix = XD; }
164 class XS : TB { Prefix OpPrefix = XS; }
165 class T8PS : T8 { Prefix OpPrefix = PS; }
166 class T8PD : T8 { Prefix OpPrefix = PD; }
167 class T8XD : T8 { Prefix OpPrefix = XD; }
168 class T8XS : T8 { Prefix OpPrefix = XS; }
169 class TAPS : TA { Prefix OpPrefix = PS; }
170 class TAPD : TA { Prefix OpPrefix = PD; }
171 class TAXD : TA { Prefix OpPrefix = XD; }
172 class VEX { Encoding OpEnc = EncVEX; }
173 class VEX_W { bit hasVEX_WPrefix = 1; }
174 class VEX_4V : VEX { bit hasVEX_4V = 1; }
175 class VEX_4VOp3 : VEX { bit hasVEX_4VOp3 = 1; }
176 class VEX_I8IMM { bit hasVEX_i8ImmReg = 1; }
177 class VEX_L { bit hasVEX_L = 1; }
178 class VEX_LIG { bit ignoresVEX_L = 1; }
179 class EVEX : VEX { Encoding OpEnc = EncEVEX; }
180 class EVEX_4V : VEX_4V { Encoding OpEnc = EncEVEX; }
181 class EVEX_K { bit hasEVEX_K = 1; }
182 class EVEX_KZ : EVEX_K { bit hasEVEX_Z = 1; }
183 class EVEX_B { bit hasEVEX_B = 1; }
184 class EVEX_RC { bit hasEVEX_RC = 1; }
185 class EVEX_V512 { bit hasEVEX_L2 = 1; bit hasVEX_L = 0; }
186 class EVEX_CD8<int esize, CD8VForm form> {
187 bits<2> EVEX_CD8E = !if(!eq(esize, 8), 0b00,
188 !if(!eq(esize, 16), 0b01,
189 !if(!eq(esize, 32), 0b10,
190 !if(!eq(esize, 64), 0b11, ?))));
191 bits<3> EVEX_CD8V = form.Value;
193 class Has3DNow0F0FOpcode { bit has3DNow0F0FOpcode = 1; }
194 class MemOp4 { bit hasMemOp4Prefix = 1; }
195 class XOP { Encoding OpEnc = EncXOP; }
196 class XOP_4V : XOP { bit hasVEX_4V = 1; }
197 class XOP_4VOp3 : XOP { bit hasVEX_4VOp3 = 1; }
199 class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
202 Domain d = GenericDomain>
204 let Namespace = "X86";
206 bits<8> Opcode = opcod;
208 bits<7> FormBits = Form.Value;
211 dag OutOperandList = outs;
212 dag InOperandList = ins;
213 string AsmString = AsmStr;
215 // If this is a pseudo instruction, mark it isCodeGenOnly.
216 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
218 let Itinerary = itin;
221 // Attributes specific to X86 instructions...
223 bit ForceDisassemble = 0; // Force instruction to disassemble even though it's
224 // isCodeGenonly. Needed to hide an ambiguous
225 // AsmString from the parser, but still disassemble.
227 OperandSize OpSize = OpSizeFixed; // Does this instruction's encoding change
228 // based on operand size of the mode
229 bit hasAdSizePrefix = 0; // Does this inst have a 0x67 prefix?
231 Prefix OpPrefix = NoPrfx; // Which prefix byte does this inst have?
232 Map OpMap = OB; // Which opcode map does this inst have?
233 bit hasREX_WPrefix = 0; // Does this inst require the REX.W prefix?
234 FPFormat FPForm = NotFP; // What flavor of FP instruction is this?
235 bit hasLockPrefix = 0; // Does this inst have a 0xF0 prefix?
236 Domain ExeDomain = d;
237 bit hasREPPrefix = 0; // Does this inst have a REP prefix?
238 Encoding OpEnc = EncNormal; // Encoding used by this instruction
239 bit hasVEX_WPrefix = 0; // Does this inst set the VEX_W field?
240 bit hasVEX_4V = 0; // Does this inst require the VEX.VVVV field?
241 bit hasVEX_4VOp3 = 0; // Does this inst require the VEX.VVVV field to
242 // encode the third operand?
243 bit hasVEX_i8ImmReg = 0; // Does this inst require the last source register
244 // to be encoded in a immediate field?
245 bit hasVEX_L = 0; // Does this inst use large (256-bit) registers?
246 bit ignoresVEX_L = 0; // Does this instruction ignore the L-bit
247 bit hasEVEX_K = 0; // Does this inst require masking?
248 bit hasEVEX_Z = 0; // Does this inst set the EVEX_Z field?
249 bit hasEVEX_L2 = 0; // Does this inst set the EVEX_L2 field?
250 bit hasEVEX_B = 0; // Does this inst set the EVEX_B field?
251 bits<2> EVEX_CD8E = 0; // Compressed disp8 form - element-size.
252 bits<3> EVEX_CD8V = 0; // Compressed disp8 form - vector-width.
253 bit has3DNow0F0FOpcode =0;// Wacky 3dNow! encoding?
254 bit hasMemOp4Prefix = 0; // Same bit as VEX_W, but used for swapping operands
255 bit hasEVEX_RC = 0; // Explicitly specified rounding control in FP instruction.
257 // TSFlags layout should be kept in sync with X86InstrInfo.h.
258 let TSFlags{6-0} = FormBits;
259 let TSFlags{8-7} = OpSize.Value;
260 let TSFlags{9} = hasAdSizePrefix;
261 let TSFlags{12-10} = OpPrefix.Value;
262 let TSFlags{15-13} = OpMap.Value;
263 let TSFlags{16} = hasREX_WPrefix;
264 let TSFlags{20-17} = ImmT.Value;
265 let TSFlags{23-21} = FPForm.Value;
266 let TSFlags{24} = hasLockPrefix;
267 let TSFlags{25} = hasREPPrefix;
268 let TSFlags{27-26} = ExeDomain.Value;
269 let TSFlags{29-28} = OpEnc.Value;
270 let TSFlags{37-30} = Opcode;
271 let TSFlags{38} = hasVEX_WPrefix;
272 let TSFlags{39} = hasVEX_4V;
273 let TSFlags{40} = hasVEX_4VOp3;
274 let TSFlags{41} = hasVEX_i8ImmReg;
275 let TSFlags{42} = hasVEX_L;
276 let TSFlags{43} = ignoresVEX_L;
277 let TSFlags{44} = hasEVEX_K;
278 let TSFlags{45} = hasEVEX_Z;
279 let TSFlags{46} = hasEVEX_L2;
280 let TSFlags{47} = hasEVEX_B;
281 let TSFlags{49-48} = EVEX_CD8E;
282 let TSFlags{52-50} = EVEX_CD8V;
283 let TSFlags{53} = has3DNow0F0FOpcode;
284 let TSFlags{54} = hasMemOp4Prefix;
285 let TSFlags{55} = hasEVEX_RC;
288 class PseudoI<dag oops, dag iops, list<dag> pattern>
289 : X86Inst<0, Pseudo, NoImm, oops, iops, "", NoItinerary> {
290 let Pattern = pattern;
293 class I<bits<8> o, Format f, dag outs, dag ins, string asm,
294 list<dag> pattern, InstrItinClass itin = NoItinerary,
295 Domain d = GenericDomain>
296 : X86Inst<o, f, NoImm, outs, ins, asm, itin, d> {
297 let Pattern = pattern;
300 class Ii8 <bits<8> o, Format f, dag outs, dag ins, string asm,
301 list<dag> pattern, InstrItinClass itin = NoItinerary,
302 Domain d = GenericDomain>
303 : X86Inst<o, f, Imm8, outs, ins, asm, itin, d> {
304 let Pattern = pattern;
307 class Ii8PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
308 list<dag> pattern, InstrItinClass itin = NoItinerary>
309 : X86Inst<o, f, Imm8PCRel, outs, ins, asm, itin> {
310 let Pattern = pattern;
313 class Ii16<bits<8> o, Format f, dag outs, dag ins, string asm,
314 list<dag> pattern, InstrItinClass itin = NoItinerary>
315 : X86Inst<o, f, Imm16, outs, ins, asm, itin> {
316 let Pattern = pattern;
319 class Ii32<bits<8> o, Format f, dag outs, dag ins, string asm,
320 list<dag> pattern, InstrItinClass itin = NoItinerary>
321 : X86Inst<o, f, Imm32, outs, ins, asm, itin> {
322 let Pattern = pattern;
325 class Ii32S<bits<8> o, Format f, dag outs, dag ins, string asm,
326 list<dag> pattern, InstrItinClass itin = NoItinerary>
327 : X86Inst<o, f, Imm32S, outs, ins, asm, itin> {
328 let Pattern = pattern;
332 class Ii16PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
333 list<dag> pattern, InstrItinClass itin = NoItinerary>
334 : X86Inst<o, f, Imm16PCRel, outs, ins, asm, itin> {
335 let Pattern = pattern;
339 class Ii32PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
340 list<dag> pattern, InstrItinClass itin = NoItinerary>
341 : X86Inst<o, f, Imm32PCRel, outs, ins, asm, itin> {
342 let Pattern = pattern;
346 // FPStack Instruction Templates:
347 // FPI - Floating Point Instruction template.
348 class FPI<bits<8> o, Format F, dag outs, dag ins, string asm,
349 InstrItinClass itin = NoItinerary>
350 : I<o, F, outs, ins, asm, [], itin> {}
352 // FpI_ - Floating Point Pseudo Instruction template. Not Predicated.
353 class FpI_<dag outs, dag ins, FPFormat fp, list<dag> pattern,
354 InstrItinClass itin = NoItinerary>
355 : X86Inst<0, Pseudo, NoImm, outs, ins, "", itin> {
357 let Pattern = pattern;
360 // Templates for instructions that use a 16- or 32-bit segmented address as
361 // their only operand: lcall (FAR CALL) and ljmp (FAR JMP)
363 // Iseg16 - 16-bit segment selector, 16-bit offset
364 // Iseg32 - 16-bit segment selector, 32-bit offset
366 class Iseg16 <bits<8> o, Format f, dag outs, dag ins, string asm,
367 list<dag> pattern, InstrItinClass itin = NoItinerary>
368 : X86Inst<o, f, Imm16, outs, ins, asm, itin> {
369 let Pattern = pattern;
373 class Iseg32 <bits<8> o, Format f, dag outs, dag ins, string asm,
374 list<dag> pattern, InstrItinClass itin = NoItinerary>
375 : X86Inst<o, f, Imm32, outs, ins, asm, itin> {
376 let Pattern = pattern;
380 // SI - SSE 1 & 2 scalar instructions
381 class SI<bits<8> o, Format F, dag outs, dag ins, string asm,
382 list<dag> pattern, InstrItinClass itin = NoItinerary>
383 : I<o, F, outs, ins, asm, pattern, itin> {
384 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
385 !if(!eq(OpEnc.Value, EncVEX.Value), [UseAVX],
386 !if(!eq(OpPrefix.Value, XS.Value), [UseSSE1],
387 !if(!eq(OpPrefix.Value, XD.Value), [UseSSE2],
388 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
391 // AVX instructions have a 'v' prefix in the mnemonic
392 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
393 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
397 // SIi8 - SSE 1 & 2 scalar instructions
398 class SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
399 list<dag> pattern, InstrItinClass itin = NoItinerary>
400 : Ii8<o, F, outs, ins, asm, pattern, itin> {
401 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
402 !if(!eq(OpEnc.Value, EncVEX.Value), [UseAVX],
403 !if(!eq(OpPrefix.Value, XS.Value), [UseSSE1],
406 // AVX instructions have a 'v' prefix in the mnemonic
407 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
408 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
412 // PI - SSE 1 & 2 packed instructions
413 class PI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern,
414 InstrItinClass itin, Domain d>
415 : I<o, F, outs, ins, asm, pattern, itin, d> {
416 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
417 !if(!eq(OpEnc.Value, EncVEX.Value), [HasAVX],
418 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
421 // AVX instructions have a 'v' prefix in the mnemonic
422 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
423 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
427 // MMXPI - SSE 1 & 2 packed instructions with MMX operands
428 class MMXPI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern,
429 InstrItinClass itin, Domain d>
430 : I<o, F, outs, ins, asm, pattern, itin, d> {
431 let Predicates = !if(!eq(OpPrefix.Value, PD.Value), [HasSSE2],
435 // PIi8 - SSE 1 & 2 packed instructions with immediate
436 class PIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
437 list<dag> pattern, InstrItinClass itin, Domain d>
438 : Ii8<o, F, outs, ins, asm, pattern, itin, d> {
439 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
440 !if(!eq(OpEnc.Value, EncVEX.Value), [HasAVX],
441 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
444 // AVX instructions have a 'v' prefix in the mnemonic
445 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
446 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
450 // SSE1 Instruction Templates:
452 // SSI - SSE1 instructions with XS prefix.
453 // PSI - SSE1 instructions with PS prefix.
454 // PSIi8 - SSE1 instructions with ImmT == Imm8 and PS prefix.
455 // VSSI - SSE1 instructions with XS prefix in AVX form.
456 // VPSI - SSE1 instructions with PS prefix in AVX form, packed single.
458 class SSI<bits<8> o, Format F, dag outs, dag ins, string asm,
459 list<dag> pattern, InstrItinClass itin = NoItinerary>
460 : I<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE1]>;
461 class SSIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
462 list<dag> pattern, InstrItinClass itin = NoItinerary>
463 : Ii8<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE1]>;
464 class PSI<bits<8> o, Format F, dag outs, dag ins, string asm,
465 list<dag> pattern, InstrItinClass itin = NoItinerary>
466 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
468 class PSIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
469 list<dag> pattern, InstrItinClass itin = NoItinerary>
470 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
472 class VSSI<bits<8> o, Format F, dag outs, dag ins, string asm,
473 list<dag> pattern, InstrItinClass itin = NoItinerary>
474 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XS,
476 class VPSI<bits<8> o, Format F, dag outs, dag ins, string asm,
477 list<dag> pattern, InstrItinClass itin = NoItinerary>
478 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin, SSEPackedSingle>, PS,
481 // SSE2 Instruction Templates:
483 // SDI - SSE2 instructions with XD prefix.
484 // SDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix.
485 // S2SI - SSE2 instructions with XS prefix.
486 // SSDIi8 - SSE2 instructions with ImmT == Imm8 and XS prefix.
487 // PDI - SSE2 instructions with PD prefix, packed double domain.
488 // PDIi8 - SSE2 instructions with ImmT == Imm8 and PD prefix.
489 // VSDI - SSE2 scalar instructions with XD prefix in AVX form.
490 // VPDI - SSE2 vector instructions with PD prefix in AVX form,
491 // packed double domain.
492 // VS2I - SSE2 scalar instructions with PD prefix in AVX form.
493 // S2I - SSE2 scalar instructions with PD prefix.
494 // MMXSDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix as well as
496 // MMXSSDIi8 - SSE2 instructions with ImmT == Imm8 and XS prefix as well as
499 class SDI<bits<8> o, Format F, dag outs, dag ins, string asm,
500 list<dag> pattern, InstrItinClass itin = NoItinerary>
501 : I<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[UseSSE2]>;
502 class SDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
503 list<dag> pattern, InstrItinClass itin = NoItinerary>
504 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[UseSSE2]>;
505 class S2SI<bits<8> o, Format F, dag outs, dag ins, string asm,
506 list<dag> pattern, InstrItinClass itin = NoItinerary>
507 : I<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE2]>;
508 class S2SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
509 list<dag> pattern, InstrItinClass itin = NoItinerary>
510 : Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[UseSSE2]>;
511 class PDI<bits<8> o, Format F, dag outs, dag ins, string asm,
512 list<dag> pattern, InstrItinClass itin = NoItinerary>
513 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
515 class PDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
516 list<dag> pattern, InstrItinClass itin = NoItinerary>
517 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
519 class VSDI<bits<8> o, Format F, dag outs, dag ins, string asm,
520 list<dag> pattern, InstrItinClass itin = NoItinerary>
521 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XD,
523 class VS2SI<bits<8> o, Format F, dag outs, dag ins, string asm,
524 list<dag> pattern, InstrItinClass itin = NoItinerary>
525 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XS,
527 class VPDI<bits<8> o, Format F, dag outs, dag ins, string asm,
528 list<dag> pattern, InstrItinClass itin = NoItinerary>
529 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin, SSEPackedDouble>,
530 PD, Requires<[HasAVX]>;
531 class VS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
532 list<dag> pattern, InstrItinClass itin = NoItinerary>
533 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, PD,
535 class S2I<bits<8> o, Format F, dag outs, dag ins, string asm,
536 list<dag> pattern, InstrItinClass itin = NoItinerary>
537 : I<o, F, outs, ins, asm, pattern, itin>, PD, Requires<[UseSSE2]>;
538 class MMXSDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
539 list<dag> pattern, InstrItinClass itin = NoItinerary>
540 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[HasSSE2]>;
541 class MMXS2SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
542 list<dag> pattern, InstrItinClass itin = NoItinerary>
543 : Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[HasSSE2]>;
545 // SSE3 Instruction Templates:
547 // S3I - SSE3 instructions with PD prefixes.
548 // S3SI - SSE3 instructions with XS prefix.
549 // S3DI - SSE3 instructions with XD prefix.
551 class S3SI<bits<8> o, Format F, dag outs, dag ins, string asm,
552 list<dag> pattern, InstrItinClass itin = NoItinerary>
553 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, XS,
555 class S3DI<bits<8> o, Format F, dag outs, dag ins, string asm,
556 list<dag> pattern, InstrItinClass itin = NoItinerary>
557 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, XD,
559 class S3I<bits<8> o, Format F, dag outs, dag ins, string asm,
560 list<dag> pattern, InstrItinClass itin = NoItinerary>
561 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
565 // SSSE3 Instruction Templates:
567 // SS38I - SSSE3 instructions with T8 prefix.
568 // SS3AI - SSSE3 instructions with TA prefix.
569 // MMXSS38I - SSSE3 instructions with T8 prefix and MMX operands.
570 // MMXSS3AI - SSSE3 instructions with TA prefix and MMX operands.
572 // Note: SSSE3 instructions have 64-bit and 128-bit versions. The 64-bit version
573 // uses the MMX registers. The 64-bit versions are grouped with the MMX
574 // classes. They need to be enabled even if AVX is enabled.
576 class SS38I<bits<8> o, Format F, dag outs, dag ins, string asm,
577 list<dag> pattern, InstrItinClass itin = NoItinerary>
578 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
579 Requires<[UseSSSE3]>;
580 class SS3AI<bits<8> o, Format F, dag outs, dag ins, string asm,
581 list<dag> pattern, InstrItinClass itin = NoItinerary>
582 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
583 Requires<[UseSSSE3]>;
584 class MMXSS38I<bits<8> o, Format F, dag outs, dag ins, string asm,
585 list<dag> pattern, InstrItinClass itin = NoItinerary>
586 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PS,
587 Requires<[HasSSSE3]>;
588 class MMXSS3AI<bits<8> o, Format F, dag outs, dag ins, string asm,
589 list<dag> pattern, InstrItinClass itin = NoItinerary>
590 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPS,
591 Requires<[HasSSSE3]>;
593 // SSE4.1 Instruction Templates:
595 // SS48I - SSE 4.1 instructions with T8 prefix.
596 // SS41AIi8 - SSE 4.1 instructions with TA prefix and ImmT == Imm8.
598 class SS48I<bits<8> o, Format F, dag outs, dag ins, string asm,
599 list<dag> pattern, InstrItinClass itin = NoItinerary>
600 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
601 Requires<[UseSSE41]>;
602 class SS4AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
603 list<dag> pattern, InstrItinClass itin = NoItinerary>
604 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
605 Requires<[UseSSE41]>;
607 // SSE4.2 Instruction Templates:
609 // SS428I - SSE 4.2 instructions with T8 prefix.
610 class SS428I<bits<8> o, Format F, dag outs, dag ins, string asm,
611 list<dag> pattern, InstrItinClass itin = NoItinerary>
612 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
613 Requires<[UseSSE42]>;
615 // SS42FI - SSE 4.2 instructions with T8XD prefix.
616 // NOTE: 'HasSSE42' is used as SS42FI is only used for CRC32 insns.
617 class SS42FI<bits<8> o, Format F, dag outs, dag ins, string asm,
618 list<dag> pattern, InstrItinClass itin = NoItinerary>
619 : I<o, F, outs, ins, asm, pattern, itin>, T8XD, Requires<[HasSSE42]>;
621 // SS42AI = SSE 4.2 instructions with TA prefix
622 class SS42AI<bits<8> o, Format F, dag outs, dag ins, string asm,
623 list<dag> pattern, InstrItinClass itin = NoItinerary>
624 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
625 Requires<[UseSSE42]>;
627 // AVX Instruction Templates:
628 // Instructions introduced in AVX (no SSE equivalent forms)
630 // AVX8I - AVX instructions with T8PD prefix.
631 // AVXAIi8 - AVX instructions with TAPD prefix and ImmT = Imm8.
632 class AVX8I<bits<8> o, Format F, dag outs, dag ins, string asm,
633 list<dag> pattern, InstrItinClass itin = NoItinerary>
634 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
636 class AVXAIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
637 list<dag> pattern, InstrItinClass itin = NoItinerary>
638 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
641 // AVX2 Instruction Templates:
642 // Instructions introduced in AVX2 (no SSE equivalent forms)
644 // AVX28I - AVX2 instructions with T8PD prefix.
645 // AVX2AIi8 - AVX2 instructions with TAPD prefix and ImmT = Imm8.
646 class AVX28I<bits<8> o, Format F, dag outs, dag ins, string asm,
647 list<dag> pattern, InstrItinClass itin = NoItinerary>
648 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
650 class AVX2AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
651 list<dag> pattern, InstrItinClass itin = NoItinerary>
652 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
656 // AVX-512 Instruction Templates:
657 // Instructions introduced in AVX-512 (no SSE equivalent forms)
659 // AVX5128I - AVX-512 instructions with T8PD prefix.
660 // AVX512AIi8 - AVX-512 instructions with TAPD prefix and ImmT = Imm8.
661 // AVX512PDI - AVX-512 instructions with PD, double packed.
662 // AVX512PSI - AVX-512 instructions with PS, single packed.
663 // AVX512XS8I - AVX-512 instructions with T8 and XS prefixes.
664 // AVX512XSI - AVX-512 instructions with XS prefix, generic domain.
665 // AVX512BI - AVX-512 instructions with PD, int packed domain.
666 // AVX512SI - AVX-512 scalar instructions with PD prefix.
668 class AVX5128I<bits<8> o, Format F, dag outs, dag ins, string asm,
669 list<dag> pattern, InstrItinClass itin = NoItinerary>
670 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
671 Requires<[HasAVX512]>;
672 class AVX512XS8I<bits<8> o, Format F, dag outs, dag ins, string asm,
673 list<dag> pattern, InstrItinClass itin = NoItinerary>
674 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8XS,
675 Requires<[HasAVX512]>;
676 class AVX512XSI<bits<8> o, Format F, dag outs, dag ins, string asm,
677 list<dag> pattern, InstrItinClass itin = NoItinerary>
678 : I<o, F, outs, ins, asm, pattern, itin>, XS,
679 Requires<[HasAVX512]>;
680 class AVX512XDI<bits<8> o, Format F, dag outs, dag ins, string asm,
681 list<dag> pattern, InstrItinClass itin = NoItinerary>
682 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, XD,
683 Requires<[HasAVX512]>;
684 class AVX512BI<bits<8> o, Format F, dag outs, dag ins, string asm,
685 list<dag> pattern, InstrItinClass itin = NoItinerary>
686 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, PD,
687 Requires<[HasAVX512]>;
688 class AVX512BIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
689 list<dag> pattern, InstrItinClass itin = NoItinerary>
690 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, PD,
691 Requires<[HasAVX512]>;
692 class AVX512AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
693 list<dag> pattern, InstrItinClass itin = NoItinerary>
694 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
695 Requires<[HasAVX512]>;
696 class AVX512Ii8<bits<8> o, Format F, dag outs, dag ins, string asm,
697 list<dag> pattern, InstrItinClass itin = NoItinerary>
698 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>,
699 Requires<[HasAVX512]>;
700 class AVX512PDI<bits<8> o, Format F, dag outs, dag ins, string asm,
701 list<dag> pattern, InstrItinClass itin = NoItinerary>
702 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
703 Requires<[HasAVX512]>;
704 class AVX512PSI<bits<8> o, Format F, dag outs, dag ins, string asm,
705 list<dag> pattern, InstrItinClass itin = NoItinerary>
706 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
707 Requires<[HasAVX512]>;
708 class AVX512PIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
709 list<dag> pattern, Domain d, InstrItinClass itin = NoItinerary>
710 : Ii8<o, F, outs, ins, asm, pattern, itin, d>, Requires<[HasAVX512]>;
711 class AVX512PI<bits<8> o, Format F, dag outs, dag ins, string asm,
712 list<dag> pattern, Domain d, InstrItinClass itin = NoItinerary>
713 : I<o, F, outs, ins, asm, pattern, itin, d>, Requires<[HasAVX512]>;
714 class AVX512FMA3<bits<8> o, Format F, dag outs, dag ins, string asm,
715 list<dag>pattern, InstrItinClass itin = NoItinerary>
716 : I<o, F, outs, ins, asm, pattern, itin>, T8PD,
717 EVEX_4V, Requires<[HasAVX512]>;
719 // AES Instruction Templates:
722 // These use the same encoding as the SSE4.2 T8 and TA encodings.
723 class AES8I<bits<8> o, Format F, dag outs, dag ins, string asm,
724 list<dag>pattern, InstrItinClass itin = IIC_AES>
725 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
728 class AESAI<bits<8> o, Format F, dag outs, dag ins, string asm,
729 list<dag> pattern, InstrItinClass itin = NoItinerary>
730 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
733 // PCLMUL Instruction Templates
734 class PCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
735 list<dag>pattern, InstrItinClass itin = NoItinerary>
736 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
737 Requires<[HasPCLMUL]>;
739 class AVXPCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
740 list<dag>pattern, InstrItinClass itin = NoItinerary>
741 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
742 VEX_4V, Requires<[HasAVX, HasPCLMUL]>;
744 // FMA3 Instruction Templates
745 class FMA3<bits<8> o, Format F, dag outs, dag ins, string asm,
746 list<dag>pattern, InstrItinClass itin = NoItinerary>
747 : I<o, F, outs, ins, asm, pattern, itin>, T8PD,
748 VEX_4V, FMASC, Requires<[HasFMA]>;
750 // FMA4 Instruction Templates
751 class FMA4<bits<8> o, Format F, dag outs, dag ins, string asm,
752 list<dag>pattern, InstrItinClass itin = NoItinerary>
753 : Ii8<o, F, outs, ins, asm, pattern, itin>, TAPD,
754 VEX_4V, VEX_I8IMM, FMASC, Requires<[HasFMA4]>;
756 // XOP 2, 3 and 4 Operand Instruction Template
757 class IXOP<bits<8> o, Format F, dag outs, dag ins, string asm,
758 list<dag> pattern, InstrItinClass itin = NoItinerary>
759 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>,
760 XOP9, Requires<[HasXOP]>;
762 // XOP 2, 3 and 4 Operand Instruction Templates with imm byte
763 class IXOPi8<bits<8> o, Format F, dag outs, dag ins, string asm,
764 list<dag> pattern, InstrItinClass itin = NoItinerary>
765 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>,
766 XOP8, Requires<[HasXOP]>;
768 // XOP 5 operand instruction (VEX encoding!)
769 class IXOP5<bits<8> o, Format F, dag outs, dag ins, string asm,
770 list<dag>pattern, InstrItinClass itin = NoItinerary>
771 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
772 VEX_4V, VEX_I8IMM, Requires<[HasXOP]>;
774 // X86-64 Instruction templates...
777 class RI<bits<8> o, Format F, dag outs, dag ins, string asm,
778 list<dag> pattern, InstrItinClass itin = NoItinerary>
779 : I<o, F, outs, ins, asm, pattern, itin>, REX_W;
780 class RIi8 <bits<8> o, Format F, dag outs, dag ins, string asm,
781 list<dag> pattern, InstrItinClass itin = NoItinerary>
782 : Ii8<o, F, outs, ins, asm, pattern, itin>, REX_W;
783 class RIi16 <bits<8> o, Format F, dag outs, dag ins, string asm,
784 list<dag> pattern, InstrItinClass itin = NoItinerary>
785 : Ii16<o, F, outs, ins, asm, pattern, itin>, REX_W;
786 class RIi32 <bits<8> o, Format F, dag outs, dag ins, string asm,
787 list<dag> pattern, InstrItinClass itin = NoItinerary>
788 : Ii32<o, F, outs, ins, asm, pattern, itin>, REX_W;
789 class RIi32S <bits<8> o, Format F, dag outs, dag ins, string asm,
790 list<dag> pattern, InstrItinClass itin = NoItinerary>
791 : Ii32S<o, F, outs, ins, asm, pattern, itin>, REX_W;
793 class RIi64<bits<8> o, Format f, dag outs, dag ins, string asm,
794 list<dag> pattern, InstrItinClass itin = NoItinerary>
795 : X86Inst<o, f, Imm64, outs, ins, asm, itin>, REX_W {
796 let Pattern = pattern;
800 class RIi64_NOREX<bits<8> o, Format f, dag outs, dag ins, string asm,
801 list<dag> pattern, InstrItinClass itin = NoItinerary>
802 : X86Inst<o, f, Imm64, outs, ins, asm, itin> {
803 let Pattern = pattern;
807 class RSSI<bits<8> o, Format F, dag outs, dag ins, string asm,
808 list<dag> pattern, InstrItinClass itin = NoItinerary>
809 : SSI<o, F, outs, ins, asm, pattern, itin>, REX_W;
810 class RSDI<bits<8> o, Format F, dag outs, dag ins, string asm,
811 list<dag> pattern, InstrItinClass itin = NoItinerary>
812 : SDI<o, F, outs, ins, asm, pattern, itin>, REX_W;
813 class RPDI<bits<8> o, Format F, dag outs, dag ins, string asm,
814 list<dag> pattern, InstrItinClass itin = NoItinerary>
815 : PDI<o, F, outs, ins, asm, pattern, itin>, REX_W;
816 class VRPDI<bits<8> o, Format F, dag outs, dag ins, string asm,
817 list<dag> pattern, InstrItinClass itin = NoItinerary>
818 : VPDI<o, F, outs, ins, asm, pattern, itin>, VEX_W;
819 class RS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
820 list<dag> pattern, InstrItinClass itin = NoItinerary>
821 : S2I<o, F, outs, ins, asm, pattern, itin>, REX_W;
822 class VRS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
823 list<dag> pattern, InstrItinClass itin = NoItinerary>
824 : VS2I<o, F, outs, ins, asm, pattern, itin>, VEX_W;
826 // MMX Instruction templates
829 // MMXI - MMX instructions with TB prefix.
830 // MMXI32 - MMX instructions with TB prefix valid only in 32 bit mode.
831 // MMXI64 - MMX instructions with TB prefix valid only in 64 bit mode.
832 // MMX2I - MMX / SSE2 instructions with PD prefix.
833 // MMXIi8 - MMX instructions with ImmT == Imm8 and PS prefix.
834 // MMXIi8 - MMX instructions with ImmT == Imm8 and PS prefix.
835 // MMXID - MMX instructions with XD prefix.
836 // MMXIS - MMX instructions with XS prefix.
837 class MMXI<bits<8> o, Format F, dag outs, dag ins, string asm,
838 list<dag> pattern, InstrItinClass itin = NoItinerary>
839 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX]>;
840 class MMXI32<bits<8> o, Format F, dag outs, dag ins, string asm,
841 list<dag> pattern, InstrItinClass itin = NoItinerary>
842 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX,Not64BitMode]>;
843 class MMXI64<bits<8> o, Format F, dag outs, dag ins, string asm,
844 list<dag> pattern, InstrItinClass itin = NoItinerary>
845 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX,In64BitMode]>;
846 class MMXRI<bits<8> o, Format F, dag outs, dag ins, string asm,
847 list<dag> pattern, InstrItinClass itin = NoItinerary>
848 : I<o, F, outs, ins, asm, pattern, itin>, PS, REX_W, Requires<[HasMMX]>;
849 class MMX2I<bits<8> o, Format F, dag outs, dag ins, string asm,
850 list<dag> pattern, InstrItinClass itin = NoItinerary>
851 : I<o, F, outs, ins, asm, pattern, itin>, PD, Requires<[HasMMX]>;
852 class MMXIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
853 list<dag> pattern, InstrItinClass itin = NoItinerary>
854 : Ii8<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX]>;
855 class MMXID<bits<8> o, Format F, dag outs, dag ins, string asm,
856 list<dag> pattern, InstrItinClass itin = NoItinerary>
857 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[HasMMX]>;
858 class MMXIS<bits<8> o, Format F, dag outs, dag ins, string asm,
859 list<dag> pattern, InstrItinClass itin = NoItinerary>
860 : Ii8<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[HasMMX]>;