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 OBXS { Prefix OpPrefix = XS; }
162 class PS : TB { Prefix OpPrefix = PS; }
163 class PD : TB { Prefix OpPrefix = PD; }
164 class XD : TB { Prefix OpPrefix = XD; }
165 class XS : TB { Prefix OpPrefix = XS; }
166 class T8PS : T8 { Prefix OpPrefix = PS; }
167 class T8PD : T8 { Prefix OpPrefix = PD; }
168 class T8XD : T8 { Prefix OpPrefix = XD; }
169 class T8XS : T8 { Prefix OpPrefix = XS; }
170 class TAPS : TA { Prefix OpPrefix = PS; }
171 class TAPD : TA { Prefix OpPrefix = PD; }
172 class TAXD : TA { Prefix OpPrefix = XD; }
173 class VEX { Encoding OpEnc = EncVEX; }
174 class VEX_W { bit hasVEX_WPrefix = 1; }
175 class VEX_4V : VEX { bit hasVEX_4V = 1; }
176 class VEX_4VOp3 : VEX { bit hasVEX_4VOp3 = 1; }
177 class VEX_I8IMM { bit hasVEX_i8ImmReg = 1; }
178 class VEX_L { bit hasVEX_L = 1; }
179 class VEX_LIG { bit ignoresVEX_L = 1; }
180 class EVEX : VEX { Encoding OpEnc = EncEVEX; }
181 class EVEX_4V : VEX_4V { Encoding OpEnc = EncEVEX; }
182 class EVEX_K { bit hasEVEX_K = 1; }
183 class EVEX_KZ : EVEX_K { bit hasEVEX_Z = 1; }
184 class EVEX_B { bit hasEVEX_B = 1; }
185 class EVEX_RC { bit hasEVEX_RC = 1; }
186 class EVEX_V512 { bit hasEVEX_L2 = 1; bit hasVEX_L = 0; }
187 class EVEX_V256 { bit hasEVEX_L2 = 0; bit hasVEX_L = 1; }
188 class EVEX_V128 { bit hasEVEX_L2 = 0; bit hasVEX_L = 0; }
190 // Specify AVX512 8-bit compressed displacement encoding based on the vector
191 // element size in bits (8, 16, 32, 64) and the CDisp8 form.
192 class EVEX_CD8<int esize, CD8VForm form> {
193 int CD8_EltSize = !srl(esize, 3);
194 bits<3> CD8_Form = form.Value;
197 class Has3DNow0F0FOpcode { bit has3DNow0F0FOpcode = 1; }
198 class MemOp4 { bit hasMemOp4Prefix = 1; }
199 class XOP { Encoding OpEnc = EncXOP; }
200 class XOP_4V : XOP { bit hasVEX_4V = 1; }
201 class XOP_4VOp3 : XOP { bit hasVEX_4VOp3 = 1; }
203 class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
206 Domain d = GenericDomain>
208 let Namespace = "X86";
210 bits<8> Opcode = opcod;
212 bits<7> FormBits = Form.Value;
215 dag OutOperandList = outs;
216 dag InOperandList = ins;
217 string AsmString = AsmStr;
219 // If this is a pseudo instruction, mark it isCodeGenOnly.
220 let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
222 let Itinerary = itin;
225 // Attributes specific to X86 instructions...
227 bit ForceDisassemble = 0; // Force instruction to disassemble even though it's
228 // isCodeGenonly. Needed to hide an ambiguous
229 // AsmString from the parser, but still disassemble.
231 OperandSize OpSize = OpSizeFixed; // Does this instruction's encoding change
232 // based on operand size of the mode
233 bits<2> OpSizeBits = OpSize.Value;
234 bit hasAdSizePrefix = 0; // Does this inst have a 0x67 prefix?
236 Prefix OpPrefix = NoPrfx; // Which prefix byte does this inst have?
237 bits<3> OpPrefixBits = OpPrefix.Value;
238 Map OpMap = OB; // Which opcode map does this inst have?
239 bits<3> OpMapBits = OpMap.Value;
240 bit hasREX_WPrefix = 0; // Does this inst require the REX.W prefix?
241 FPFormat FPForm = NotFP; // What flavor of FP instruction is this?
242 bit hasLockPrefix = 0; // Does this inst have a 0xF0 prefix?
243 Domain ExeDomain = d;
244 bit hasREPPrefix = 0; // Does this inst have a REP prefix?
245 Encoding OpEnc = EncNormal; // Encoding used by this instruction
246 bits<2> OpEncBits = OpEnc.Value;
247 bit hasVEX_WPrefix = 0; // Does this inst set the VEX_W field?
248 bit hasVEX_4V = 0; // Does this inst require the VEX.VVVV field?
249 bit hasVEX_4VOp3 = 0; // Does this inst require the VEX.VVVV field to
250 // encode the third operand?
251 bit hasVEX_i8ImmReg = 0; // Does this inst require the last source register
252 // to be encoded in a immediate field?
253 bit hasVEX_L = 0; // Does this inst use large (256-bit) registers?
254 bit ignoresVEX_L = 0; // Does this instruction ignore the L-bit
255 bit hasEVEX_K = 0; // Does this inst require masking?
256 bit hasEVEX_Z = 0; // Does this inst set the EVEX_Z field?
257 bit hasEVEX_L2 = 0; // Does this inst set the EVEX_L2 field?
258 bit hasEVEX_B = 0; // Does this inst set the EVEX_B field?
259 bits<3> CD8_Form = 0; // Compressed disp8 form - vector-width.
260 // Declare it int rather than bits<4> so that all bits are defined when
261 // assigning to bits<7>.
262 int CD8_EltSize = 0; // Compressed disp8 form - element-size in bytes.
263 bit has3DNow0F0FOpcode =0;// Wacky 3dNow! encoding?
264 bit hasMemOp4Prefix = 0; // Same bit as VEX_W, but used for swapping operands
265 bit hasEVEX_RC = 0; // Explicitly specified rounding control in FP instruction.
268 let EVEX_LL{0} = hasVEX_L;
269 let EVEX_LL{1} = hasEVEX_L2;
270 // Vector size in bytes.
271 bits<7> VectSize = !shl(16, EVEX_LL);
273 // The scaling factor for AVX512's compressed displacement is either
274 // - the size of a power-of-two number of elements or
275 // - the size of a single element for broadcasts or
276 // - the total vector size divided by a power-of-two number.
277 // Possible values are: 0 (non-AVX512 inst), 1, 2, 4, 8, 16, 32 and 64.
278 bits<7> CD8_Scale = !if (!eq (OpEnc.Value, EncEVEX.Value),
280 !shl(CD8_EltSize, CD8_Form{1-0}),
283 !srl(VectSize, CD8_Form{1-0}))), 0);
285 // TSFlags layout should be kept in sync with X86InstrInfo.h.
286 let TSFlags{6-0} = FormBits;
287 let TSFlags{8-7} = OpSizeBits;
288 let TSFlags{9} = hasAdSizePrefix;
289 let TSFlags{12-10} = OpPrefixBits;
290 let TSFlags{15-13} = OpMapBits;
291 let TSFlags{16} = hasREX_WPrefix;
292 let TSFlags{20-17} = ImmT.Value;
293 let TSFlags{23-21} = FPForm.Value;
294 let TSFlags{24} = hasLockPrefix;
295 let TSFlags{25} = hasREPPrefix;
296 let TSFlags{27-26} = ExeDomain.Value;
297 let TSFlags{29-28} = OpEncBits;
298 let TSFlags{37-30} = Opcode;
299 let TSFlags{38} = hasVEX_WPrefix;
300 let TSFlags{39} = hasVEX_4V;
301 let TSFlags{40} = hasVEX_4VOp3;
302 let TSFlags{41} = hasVEX_i8ImmReg;
303 let TSFlags{42} = hasVEX_L;
304 let TSFlags{43} = ignoresVEX_L;
305 let TSFlags{44} = hasEVEX_K;
306 let TSFlags{45} = hasEVEX_Z;
307 let TSFlags{46} = hasEVEX_L2;
308 let TSFlags{47} = hasEVEX_B;
309 // If we run out of TSFlags bits, it's possible to encode this in 3 bits.
310 let TSFlags{54-48} = CD8_Scale;
311 let TSFlags{55} = has3DNow0F0FOpcode;
312 let TSFlags{56} = hasMemOp4Prefix;
313 let TSFlags{57} = hasEVEX_RC;
316 class PseudoI<dag oops, dag iops, list<dag> pattern>
317 : X86Inst<0, Pseudo, NoImm, oops, iops, "", NoItinerary> {
318 let Pattern = pattern;
321 class I<bits<8> o, Format f, dag outs, dag ins, string asm,
322 list<dag> pattern, InstrItinClass itin = NoItinerary,
323 Domain d = GenericDomain>
324 : X86Inst<o, f, NoImm, outs, ins, asm, itin, d> {
325 let Pattern = pattern;
328 class Ii8 <bits<8> o, Format f, dag outs, dag ins, string asm,
329 list<dag> pattern, InstrItinClass itin = NoItinerary,
330 Domain d = GenericDomain>
331 : X86Inst<o, f, Imm8, outs, ins, asm, itin, d> {
332 let Pattern = pattern;
335 class Ii8PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
336 list<dag> pattern, InstrItinClass itin = NoItinerary>
337 : X86Inst<o, f, Imm8PCRel, outs, ins, asm, itin> {
338 let Pattern = pattern;
341 class Ii16<bits<8> o, Format f, dag outs, dag ins, string asm,
342 list<dag> pattern, InstrItinClass itin = NoItinerary>
343 : X86Inst<o, f, Imm16, outs, ins, asm, itin> {
344 let Pattern = pattern;
347 class Ii32<bits<8> o, Format f, dag outs, dag ins, string asm,
348 list<dag> pattern, InstrItinClass itin = NoItinerary>
349 : X86Inst<o, f, Imm32, outs, ins, asm, itin> {
350 let Pattern = pattern;
353 class Ii32S<bits<8> o, Format f, dag outs, dag ins, string asm,
354 list<dag> pattern, InstrItinClass itin = NoItinerary>
355 : X86Inst<o, f, Imm32S, outs, ins, asm, itin> {
356 let Pattern = pattern;
360 class Ii16PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
361 list<dag> pattern, InstrItinClass itin = NoItinerary>
362 : X86Inst<o, f, Imm16PCRel, outs, ins, asm, itin> {
363 let Pattern = pattern;
367 class Ii32PCRel<bits<8> o, Format f, dag outs, dag ins, string asm,
368 list<dag> pattern, InstrItinClass itin = NoItinerary>
369 : X86Inst<o, f, Imm32PCRel, outs, ins, asm, itin> {
370 let Pattern = pattern;
374 // FPStack Instruction Templates:
375 // FPI - Floating Point Instruction template.
376 class FPI<bits<8> o, Format F, dag outs, dag ins, string asm,
377 InstrItinClass itin = NoItinerary>
378 : I<o, F, outs, ins, asm, [], itin> {}
380 // FpI_ - Floating Point Pseudo Instruction template. Not Predicated.
381 class FpI_<dag outs, dag ins, FPFormat fp, list<dag> pattern,
382 InstrItinClass itin = NoItinerary>
383 : X86Inst<0, Pseudo, NoImm, outs, ins, "", itin> {
385 let Pattern = pattern;
388 // Templates for instructions that use a 16- or 32-bit segmented address as
389 // their only operand: lcall (FAR CALL) and ljmp (FAR JMP)
391 // Iseg16 - 16-bit segment selector, 16-bit offset
392 // Iseg32 - 16-bit segment selector, 32-bit offset
394 class Iseg16 <bits<8> o, Format f, dag outs, dag ins, string asm,
395 list<dag> pattern, InstrItinClass itin = NoItinerary>
396 : X86Inst<o, f, Imm16, outs, ins, asm, itin> {
397 let Pattern = pattern;
401 class Iseg32 <bits<8> o, Format f, dag outs, dag ins, string asm,
402 list<dag> pattern, InstrItinClass itin = NoItinerary>
403 : X86Inst<o, f, Imm32, outs, ins, asm, itin> {
404 let Pattern = pattern;
408 // SI - SSE 1 & 2 scalar instructions
409 class SI<bits<8> o, Format F, dag outs, dag ins, string asm,
410 list<dag> pattern, InstrItinClass itin = NoItinerary>
411 : I<o, F, outs, ins, asm, pattern, itin> {
412 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
413 !if(!eq(OpEnc.Value, EncVEX.Value), [UseAVX],
414 !if(!eq(OpPrefix.Value, XS.Value), [UseSSE1],
415 !if(!eq(OpPrefix.Value, XD.Value), [UseSSE2],
416 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
419 // AVX instructions have a 'v' prefix in the mnemonic
420 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
421 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
425 // SIi8 - SSE 1 & 2 scalar instructions
426 class SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
427 list<dag> pattern, InstrItinClass itin = NoItinerary>
428 : Ii8<o, F, outs, ins, asm, pattern, itin> {
429 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
430 !if(!eq(OpEnc.Value, EncVEX.Value), [UseAVX],
431 !if(!eq(OpPrefix.Value, XS.Value), [UseSSE1],
434 // AVX instructions have a 'v' prefix in the mnemonic
435 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
436 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
440 // PI - SSE 1 & 2 packed instructions
441 class PI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern,
442 InstrItinClass itin, Domain d>
443 : I<o, F, outs, ins, asm, pattern, itin, d> {
444 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
445 !if(!eq(OpEnc.Value, EncVEX.Value), [HasAVX],
446 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
449 // AVX instructions have a 'v' prefix in the mnemonic
450 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
451 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
455 // MMXPI - SSE 1 & 2 packed instructions with MMX operands
456 class MMXPI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag> pattern,
457 InstrItinClass itin, Domain d>
458 : I<o, F, outs, ins, asm, pattern, itin, d> {
459 let Predicates = !if(!eq(OpPrefix.Value, PD.Value), [HasSSE2],
463 // PIi8 - SSE 1 & 2 packed instructions with immediate
464 class PIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
465 list<dag> pattern, InstrItinClass itin, Domain d>
466 : Ii8<o, F, outs, ins, asm, pattern, itin, d> {
467 let Predicates = !if(!eq(OpEnc.Value, EncEVEX.Value), [HasAVX512],
468 !if(!eq(OpEnc.Value, EncVEX.Value), [HasAVX],
469 !if(!eq(OpPrefix.Value, PD.Value), [UseSSE2],
472 // AVX instructions have a 'v' prefix in the mnemonic
473 let AsmString = !if(!eq(OpEnc.Value, EncEVEX.Value), !strconcat("v", asm),
474 !if(!eq(OpEnc.Value, EncVEX.Value), !strconcat("v", asm),
478 // SSE1 Instruction Templates:
480 // SSI - SSE1 instructions with XS prefix.
481 // PSI - SSE1 instructions with PS prefix.
482 // PSIi8 - SSE1 instructions with ImmT == Imm8 and PS prefix.
483 // VSSI - SSE1 instructions with XS prefix in AVX form.
484 // VPSI - SSE1 instructions with PS prefix in AVX form, packed single.
486 class SSI<bits<8> o, Format F, dag outs, dag ins, string asm,
487 list<dag> pattern, InstrItinClass itin = NoItinerary>
488 : I<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE1]>;
489 class SSIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
490 list<dag> pattern, InstrItinClass itin = NoItinerary>
491 : Ii8<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE1]>;
492 class PSI<bits<8> o, Format F, dag outs, dag ins, string asm,
493 list<dag> pattern, InstrItinClass itin = NoItinerary>
494 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
496 class PSIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
497 list<dag> pattern, InstrItinClass itin = NoItinerary>
498 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
500 class VSSI<bits<8> o, Format F, dag outs, dag ins, string asm,
501 list<dag> pattern, InstrItinClass itin = NoItinerary>
502 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XS,
504 class VPSI<bits<8> o, Format F, dag outs, dag ins, string asm,
505 list<dag> pattern, InstrItinClass itin = NoItinerary>
506 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin, SSEPackedSingle>, PS,
509 // SSE2 Instruction Templates:
511 // SDI - SSE2 instructions with XD prefix.
512 // SDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix.
513 // S2SI - SSE2 instructions with XS prefix.
514 // SSDIi8 - SSE2 instructions with ImmT == Imm8 and XS prefix.
515 // PDI - SSE2 instructions with PD prefix, packed double domain.
516 // PDIi8 - SSE2 instructions with ImmT == Imm8 and PD prefix.
517 // VSDI - SSE2 scalar instructions with XD prefix in AVX form.
518 // VPDI - SSE2 vector instructions with PD prefix in AVX form,
519 // packed double domain.
520 // VS2I - SSE2 scalar instructions with PD prefix in AVX form.
521 // S2I - SSE2 scalar instructions with PD prefix.
522 // MMXSDIi8 - SSE2 instructions with ImmT == Imm8 and XD prefix as well as
524 // MMXSSDIi8 - SSE2 instructions with ImmT == Imm8 and XS prefix as well as
527 class SDI<bits<8> o, Format F, dag outs, dag ins, string asm,
528 list<dag> pattern, InstrItinClass itin = NoItinerary>
529 : I<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[UseSSE2]>;
530 class SDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
531 list<dag> pattern, InstrItinClass itin = NoItinerary>
532 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[UseSSE2]>;
533 class S2SI<bits<8> o, Format F, dag outs, dag ins, string asm,
534 list<dag> pattern, InstrItinClass itin = NoItinerary>
535 : I<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[UseSSE2]>;
536 class S2SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
537 list<dag> pattern, InstrItinClass itin = NoItinerary>
538 : Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[UseSSE2]>;
539 class PDI<bits<8> o, Format F, dag outs, dag ins, string asm,
540 list<dag> pattern, InstrItinClass itin = NoItinerary>
541 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
543 class PDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
544 list<dag> pattern, InstrItinClass itin = NoItinerary>
545 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
547 class VSDI<bits<8> o, Format F, dag outs, dag ins, string asm,
548 list<dag> pattern, InstrItinClass itin = NoItinerary>
549 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XD,
551 class VS2SI<bits<8> o, Format F, dag outs, dag ins, string asm,
552 list<dag> pattern, InstrItinClass itin = NoItinerary>
553 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, XS,
555 class VPDI<bits<8> o, Format F, dag outs, dag ins, string asm,
556 list<dag> pattern, InstrItinClass itin = NoItinerary>
557 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin, SSEPackedDouble>,
558 PD, Requires<[HasAVX]>;
559 class VS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
560 list<dag> pattern, InstrItinClass itin = NoItinerary>
561 : I<o, F, outs, ins, !strconcat("v", asm), pattern, itin>, PD,
563 class S2I<bits<8> o, Format F, dag outs, dag ins, string asm,
564 list<dag> pattern, InstrItinClass itin = NoItinerary>
565 : I<o, F, outs, ins, asm, pattern, itin>, PD, Requires<[UseSSE2]>;
566 class MMXSDIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
567 list<dag> pattern, InstrItinClass itin = NoItinerary>
568 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[HasSSE2]>;
569 class MMXS2SIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
570 list<dag> pattern, InstrItinClass itin = NoItinerary>
571 : Ii8<o, F, outs, ins, asm, pattern>, XS, Requires<[HasSSE2]>;
573 // SSE3 Instruction Templates:
575 // S3I - SSE3 instructions with PD prefixes.
576 // S3SI - SSE3 instructions with XS prefix.
577 // S3DI - SSE3 instructions with XD prefix.
579 class S3SI<bits<8> o, Format F, dag outs, dag ins, string asm,
580 list<dag> pattern, InstrItinClass itin = NoItinerary>
581 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, XS,
583 class S3DI<bits<8> o, Format F, dag outs, dag ins, string asm,
584 list<dag> pattern, InstrItinClass itin = NoItinerary>
585 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, XD,
587 class S3I<bits<8> o, Format F, dag outs, dag ins, string asm,
588 list<dag> pattern, InstrItinClass itin = NoItinerary>
589 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
593 // SSSE3 Instruction Templates:
595 // SS38I - SSSE3 instructions with T8 prefix.
596 // SS3AI - SSSE3 instructions with TA prefix.
597 // MMXSS38I - SSSE3 instructions with T8 prefix and MMX operands.
598 // MMXSS3AI - SSSE3 instructions with TA prefix and MMX operands.
600 // Note: SSSE3 instructions have 64-bit and 128-bit versions. The 64-bit version
601 // uses the MMX registers. The 64-bit versions are grouped with the MMX
602 // classes. They need to be enabled even if AVX is enabled.
604 class SS38I<bits<8> o, Format F, dag outs, dag ins, string asm,
605 list<dag> pattern, InstrItinClass itin = NoItinerary>
606 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
607 Requires<[UseSSSE3]>;
608 class SS3AI<bits<8> o, Format F, dag outs, dag ins, string asm,
609 list<dag> pattern, InstrItinClass itin = NoItinerary>
610 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
611 Requires<[UseSSSE3]>;
612 class MMXSS38I<bits<8> o, Format F, dag outs, dag ins, string asm,
613 list<dag> pattern, InstrItinClass itin = NoItinerary>
614 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PS,
615 Requires<[HasSSSE3]>;
616 class MMXSS3AI<bits<8> o, Format F, dag outs, dag ins, string asm,
617 list<dag> pattern, InstrItinClass itin = NoItinerary>
618 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPS,
619 Requires<[HasSSSE3]>;
621 // SSE4.1 Instruction Templates:
623 // SS48I - SSE 4.1 instructions with T8 prefix.
624 // SS41AIi8 - SSE 4.1 instructions with TA prefix and ImmT == Imm8.
626 class SS48I<bits<8> o, Format F, dag outs, dag ins, string asm,
627 list<dag> pattern, InstrItinClass itin = NoItinerary>
628 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
629 Requires<[UseSSE41]>;
630 class SS4AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
631 list<dag> pattern, InstrItinClass itin = NoItinerary>
632 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
633 Requires<[UseSSE41]>;
635 // SSE4.2 Instruction Templates:
637 // SS428I - SSE 4.2 instructions with T8 prefix.
638 class SS428I<bits<8> o, Format F, dag outs, dag ins, string asm,
639 list<dag> pattern, InstrItinClass itin = NoItinerary>
640 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
641 Requires<[UseSSE42]>;
643 // SS42FI - SSE 4.2 instructions with T8XD prefix.
644 // NOTE: 'HasSSE42' is used as SS42FI is only used for CRC32 insns.
645 class SS42FI<bits<8> o, Format F, dag outs, dag ins, string asm,
646 list<dag> pattern, InstrItinClass itin = NoItinerary>
647 : I<o, F, outs, ins, asm, pattern, itin>, T8XD, Requires<[HasSSE42]>;
649 // SS42AI = SSE 4.2 instructions with TA prefix
650 class SS42AI<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,
653 Requires<[UseSSE42]>;
655 // AVX Instruction Templates:
656 // Instructions introduced in AVX (no SSE equivalent forms)
658 // AVX8I - AVX instructions with T8PD prefix.
659 // AVXAIi8 - AVX instructions with TAPD prefix and ImmT = Imm8.
660 class AVX8I<bits<8> o, Format F, dag outs, dag ins, string asm,
661 list<dag> pattern, InstrItinClass itin = NoItinerary>
662 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
664 class AVXAIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
665 list<dag> pattern, InstrItinClass itin = NoItinerary>
666 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
669 // AVX2 Instruction Templates:
670 // Instructions introduced in AVX2 (no SSE equivalent forms)
672 // AVX28I - AVX2 instructions with T8PD prefix.
673 // AVX2AIi8 - AVX2 instructions with TAPD prefix and ImmT = Imm8.
674 class AVX28I<bits<8> o, Format F, dag outs, dag ins, string asm,
675 list<dag> pattern, InstrItinClass itin = NoItinerary>
676 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
678 class AVX2AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
679 list<dag> pattern, InstrItinClass itin = NoItinerary>
680 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
684 // AVX-512 Instruction Templates:
685 // Instructions introduced in AVX-512 (no SSE equivalent forms)
687 // AVX5128I - AVX-512 instructions with T8PD prefix.
688 // AVX512AIi8 - AVX-512 instructions with TAPD prefix and ImmT = Imm8.
689 // AVX512PDI - AVX-512 instructions with PD, double packed.
690 // AVX512PSI - AVX-512 instructions with PS, single packed.
691 // AVX512XS8I - AVX-512 instructions with T8 and XS prefixes.
692 // AVX512XSI - AVX-512 instructions with XS prefix, generic domain.
693 // AVX512BI - AVX-512 instructions with PD, int packed domain.
694 // AVX512SI - AVX-512 scalar instructions with PD prefix.
696 class AVX5128I<bits<8> o, Format F, dag outs, dag ins, string asm,
697 list<dag> pattern, InstrItinClass itin = NoItinerary>
698 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
699 Requires<[HasAVX512]>;
700 class AVX512XS8I<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, SSEPackedInt>, T8XS,
703 Requires<[HasAVX512]>;
704 class AVX512XSI<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>, XS,
707 Requires<[HasAVX512]>;
708 class AVX512XDI<bits<8> o, Format F, dag outs, dag ins, string asm,
709 list<dag> pattern, InstrItinClass itin = NoItinerary>
710 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, XD,
711 Requires<[HasAVX512]>;
712 class AVX512BI<bits<8> o, Format F, dag outs, dag ins, string asm,
713 list<dag> pattern, InstrItinClass itin = NoItinerary>
714 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, PD,
715 Requires<[HasAVX512]>;
716 class AVX512BIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
717 list<dag> pattern, InstrItinClass itin = NoItinerary>
718 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, PD,
719 Requires<[HasAVX512]>;
720 class AVX512AIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
721 list<dag> pattern, InstrItinClass itin = NoItinerary>
722 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
723 Requires<[HasAVX512]>;
724 class AVX512Ii8<bits<8> o, Format F, dag outs, dag ins, string asm,
725 list<dag> pattern, InstrItinClass itin = NoItinerary>
726 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>,
727 Requires<[HasAVX512]>;
728 class AVX512PDI<bits<8> o, Format F, dag outs, dag ins, string asm,
729 list<dag> pattern, InstrItinClass itin = NoItinerary>
730 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>, PD,
731 Requires<[HasAVX512]>;
732 class AVX512PSI<bits<8> o, Format F, dag outs, dag ins, string asm,
733 list<dag> pattern, InstrItinClass itin = NoItinerary>
734 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedSingle>, PS,
735 Requires<[HasAVX512]>;
736 class AVX512PIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
737 list<dag> pattern, Domain d, InstrItinClass itin = NoItinerary>
738 : Ii8<o, F, outs, ins, asm, pattern, itin, d>, Requires<[HasAVX512]>;
739 class AVX512PI<bits<8> o, Format F, dag outs, dag ins, string asm,
740 list<dag> pattern, Domain d, InstrItinClass itin = NoItinerary>
741 : I<o, F, outs, ins, asm, pattern, itin, d>, Requires<[HasAVX512]>;
742 class AVX512FMA3<bits<8> o, Format F, dag outs, dag ins, string asm,
743 list<dag>pattern, InstrItinClass itin = NoItinerary>
744 : I<o, F, outs, ins, asm, pattern, itin>, T8PD,
745 EVEX_4V, Requires<[HasAVX512]>;
747 // AES Instruction Templates:
750 // These use the same encoding as the SSE4.2 T8 and TA encodings.
751 class AES8I<bits<8> o, Format F, dag outs, dag ins, string asm,
752 list<dag>pattern, InstrItinClass itin = IIC_AES>
753 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
756 class AESAI<bits<8> o, Format F, dag outs, dag ins, string asm,
757 list<dag> pattern, InstrItinClass itin = NoItinerary>
758 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
761 // PCLMUL Instruction Templates
762 class PCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
763 list<dag>pattern, InstrItinClass itin = NoItinerary>
764 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
765 Requires<[HasPCLMUL]>;
767 class AVXPCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
768 list<dag>pattern, InstrItinClass itin = NoItinerary>
769 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
770 VEX_4V, Requires<[HasAVX, HasPCLMUL]>;
772 // FMA3 Instruction Templates
773 class FMA3<bits<8> o, Format F, dag outs, dag ins, string asm,
774 list<dag>pattern, InstrItinClass itin = NoItinerary>
775 : I<o, F, outs, ins, asm, pattern, itin>, T8PD,
776 VEX_4V, FMASC, Requires<[HasFMA]>;
778 // FMA4 Instruction Templates
779 class FMA4<bits<8> o, Format F, dag outs, dag ins, string asm,
780 list<dag>pattern, InstrItinClass itin = NoItinerary>
781 : Ii8<o, F, outs, ins, asm, pattern, itin>, TAPD,
782 VEX_4V, VEX_I8IMM, FMASC, Requires<[HasFMA4]>;
784 // XOP 2, 3 and 4 Operand Instruction Template
785 class IXOP<bits<8> o, Format F, dag outs, dag ins, string asm,
786 list<dag> pattern, InstrItinClass itin = NoItinerary>
787 : I<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>,
788 XOP9, Requires<[HasXOP]>;
790 // XOP 2, 3 and 4 Operand Instruction Templates with imm byte
791 class IXOPi8<bits<8> o, Format F, dag outs, dag ins, string asm,
792 list<dag> pattern, InstrItinClass itin = NoItinerary>
793 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedDouble>,
794 XOP8, Requires<[HasXOP]>;
796 // XOP 5 operand instruction (VEX encoding!)
797 class IXOP5<bits<8> o, Format F, dag outs, dag ins, string asm,
798 list<dag>pattern, InstrItinClass itin = NoItinerary>
799 : Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
800 VEX_4V, VEX_I8IMM, Requires<[HasXOP]>;
802 // X86-64 Instruction templates...
805 class RI<bits<8> o, Format F, dag outs, dag ins, string asm,
806 list<dag> pattern, InstrItinClass itin = NoItinerary>
807 : I<o, F, outs, ins, asm, pattern, itin>, REX_W;
808 class RIi8 <bits<8> o, Format F, dag outs, dag ins, string asm,
809 list<dag> pattern, InstrItinClass itin = NoItinerary>
810 : Ii8<o, F, outs, ins, asm, pattern, itin>, REX_W;
811 class RIi16 <bits<8> o, Format F, dag outs, dag ins, string asm,
812 list<dag> pattern, InstrItinClass itin = NoItinerary>
813 : Ii16<o, F, outs, ins, asm, pattern, itin>, REX_W;
814 class RIi32 <bits<8> o, Format F, dag outs, dag ins, string asm,
815 list<dag> pattern, InstrItinClass itin = NoItinerary>
816 : Ii32<o, F, outs, ins, asm, pattern, itin>, REX_W;
817 class RIi32S <bits<8> o, Format F, dag outs, dag ins, string asm,
818 list<dag> pattern, InstrItinClass itin = NoItinerary>
819 : Ii32S<o, F, outs, ins, asm, pattern, itin>, REX_W;
821 class RIi64<bits<8> o, Format f, dag outs, dag ins, string asm,
822 list<dag> pattern, InstrItinClass itin = NoItinerary>
823 : X86Inst<o, f, Imm64, outs, ins, asm, itin>, REX_W {
824 let Pattern = pattern;
828 class RIi64_NOREX<bits<8> o, Format f, dag outs, dag ins, string asm,
829 list<dag> pattern, InstrItinClass itin = NoItinerary>
830 : X86Inst<o, f, Imm64, outs, ins, asm, itin> {
831 let Pattern = pattern;
835 class RS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
836 list<dag> pattern, InstrItinClass itin = NoItinerary>
837 : S2I<o, F, outs, ins, asm, pattern, itin>, REX_W;
838 class VRS2I<bits<8> o, Format F, dag outs, dag ins, string asm,
839 list<dag> pattern, InstrItinClass itin = NoItinerary>
840 : VS2I<o, F, outs, ins, asm, pattern, itin>, VEX_W;
842 // MMX Instruction templates
845 // MMXI - MMX instructions with TB prefix.
846 // MMXI32 - MMX instructions with TB prefix valid only in 32 bit mode.
847 // MMXI64 - MMX instructions with TB prefix valid only in 64 bit mode.
848 // MMX2I - MMX / SSE2 instructions with PD prefix.
849 // MMXIi8 - MMX instructions with ImmT == Imm8 and PS prefix.
850 // MMXIi8 - MMX instructions with ImmT == Imm8 and PS prefix.
851 // MMXID - MMX instructions with XD prefix.
852 // MMXIS - MMX instructions with XS prefix.
853 class MMXI<bits<8> o, Format F, dag outs, dag ins, string asm,
854 list<dag> pattern, InstrItinClass itin = NoItinerary>
855 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX]>;
856 class MMXI32<bits<8> o, Format F, dag outs, dag ins, string asm,
857 list<dag> pattern, InstrItinClass itin = NoItinerary>
858 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX,Not64BitMode]>;
859 class MMXI64<bits<8> o, Format F, dag outs, dag ins, string asm,
860 list<dag> pattern, InstrItinClass itin = NoItinerary>
861 : I<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX,In64BitMode]>;
862 class MMXRI<bits<8> o, Format F, dag outs, dag ins, string asm,
863 list<dag> pattern, InstrItinClass itin = NoItinerary>
864 : I<o, F, outs, ins, asm, pattern, itin>, PS, REX_W, Requires<[HasMMX]>;
865 class MMX2I<bits<8> o, Format F, dag outs, dag ins, string asm,
866 list<dag> pattern, InstrItinClass itin = NoItinerary>
867 : I<o, F, outs, ins, asm, pattern, itin>, PD, Requires<[HasMMX]>;
868 class MMXIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
869 list<dag> pattern, InstrItinClass itin = NoItinerary>
870 : Ii8<o, F, outs, ins, asm, pattern, itin>, PS, Requires<[HasMMX]>;
871 class MMXID<bits<8> o, Format F, dag outs, dag ins, string asm,
872 list<dag> pattern, InstrItinClass itin = NoItinerary>
873 : Ii8<o, F, outs, ins, asm, pattern, itin>, XD, Requires<[HasMMX]>;
874 class MMXIS<bits<8> o, Format F, dag outs, dag ins, string asm,
875 list<dag> pattern, InstrItinClass itin = NoItinerary>
876 : Ii8<o, F, outs, ins, asm, pattern, itin>, XS, Requires<[HasMMX]>;