1 //===-- X86InstrInfo.td - Main X86 Instruction Definition --*- 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 instruction set, defining the instructions, and
11 // properties of the instructions which are needed for code generation, machine
12 // code emission, and analysis.
14 //===----------------------------------------------------------------------===//
16 //===----------------------------------------------------------------------===//
17 // X86 specific DAG Nodes.
20 def SDTIntShiftDOp: SDTypeProfile<1, 3,
21 [SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
22 SDTCisInt<0>, SDTCisInt<3>]>;
24 def SDTX86CmpTest : SDTypeProfile<1, 2, [SDTCisVT<0, i32>, SDTCisSameAs<1, 2>]>;
26 def SDTX86Cmpsd : SDTypeProfile<1, 3, [SDTCisVT<0, f64>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
27 def SDTX86Cmpss : SDTypeProfile<1, 3, [SDTCisVT<0, f32>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
29 def SDTX86Cmov : SDTypeProfile<1, 4,
30 [SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>,
31 SDTCisVT<3, i8>, SDTCisVT<4, i32>]>;
33 // Unary and binary operator instructions that set EFLAGS as a side-effect.
34 def SDTUnaryArithWithFlags : SDTypeProfile<2, 1,
35 [SDTCisInt<0>, SDTCisVT<1, i32>]>;
37 def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
40 SDTCisInt<0>, SDTCisVT<1, i32>]>;
42 // SDTBinaryArithWithFlagsInOut - RES1, EFLAGS = op LHS, RHS, EFLAGS
43 def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
49 // RES1, RES2, FLAGS = op LHS, RHS
50 def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
54 SDTCisInt<0>, SDTCisVT<1, i32>]>;
55 def SDTX86BrCond : SDTypeProfile<0, 3,
56 [SDTCisVT<0, OtherVT>,
57 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
59 def SDTX86SetCC : SDTypeProfile<1, 2,
61 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
62 def SDTX86SetCC_C : SDTypeProfile<1, 2,
64 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
66 def SDTX86sahf : SDTypeProfile<1, 1, [SDTCisVT<0, i32>, SDTCisVT<1, i8>]>;
68 def SDTX86rdrand : SDTypeProfile<2, 0, [SDTCisInt<0>, SDTCisVT<1, i32>]>;
70 def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
72 def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
74 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
75 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
76 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
78 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
79 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
82 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
84 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
88 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
94 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
96 def SDTX86Void : SDTypeProfile<0, 0, []>;
98 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
100 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
102 def SDT_X86TLSBASEADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
104 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
106 def SDT_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
108 def SDT_X86WIN_FTOL : SDTypeProfile<0, 1, [SDTCisFP<0>]>;
110 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
112 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
114 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
116 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
117 [SDNPHasChain,SDNPSideEffect]>;
118 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
120 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
122 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
126 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
127 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
128 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
129 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
131 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
132 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
134 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
135 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
137 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
138 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
140 def X86sahf : SDNode<"X86ISD::SAHF", SDTX86sahf>;
142 def X86rdrand : SDNode<"X86ISD::RDRAND", SDTX86rdrand,
143 [SDNPHasChain, SDNPSideEffect]>;
145 def X86rdseed : SDNode<"X86ISD::RDSEED", SDTX86rdrand,
146 [SDNPHasChain, SDNPSideEffect]>;
148 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
149 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
150 SDNPMayLoad, SDNPMemOperand]>;
151 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
152 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
153 SDNPMayLoad, SDNPMemOperand]>;
154 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
155 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
158 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
159 [SDNPHasChain, SDNPMayStore,
160 SDNPMayLoad, SDNPMemOperand]>;
161 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
162 [SDNPHasChain, SDNPMayStore,
163 SDNPMayLoad, SDNPMemOperand]>;
164 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
165 [SDNPHasChain, SDNPMayStore,
166 SDNPMayLoad, SDNPMemOperand]>;
167 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
168 [SDNPHasChain, SDNPMayStore,
169 SDNPMayLoad, SDNPMemOperand]>;
170 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
171 [SDNPHasChain, SDNPMayStore,
172 SDNPMayLoad, SDNPMemOperand]>;
173 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
174 [SDNPHasChain, SDNPMayStore,
175 SDNPMayLoad, SDNPMemOperand]>;
176 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
177 [SDNPHasChain, SDNPMayStore,
178 SDNPMayLoad, SDNPMemOperand]>;
179 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
180 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
182 def X86vastart_save_xmm_regs :
183 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
184 SDT_X86VASTART_SAVE_XMM_REGS,
185 [SDNPHasChain, SDNPVariadic]>;
187 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
188 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
190 def X86callseq_start :
191 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
192 [SDNPHasChain, SDNPOutGlue]>;
194 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
195 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
197 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
198 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
201 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
202 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
203 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
204 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
207 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
208 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
210 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
211 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
213 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
214 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
216 def X86tlsbaseaddr : SDNode<"X86ISD::TLSBASEADDR", SDT_X86TLSBASEADDR,
217 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
219 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
222 def X86eh_sjlj_setjmp : SDNode<"X86ISD::EH_SJLJ_SETJMP",
223 SDTypeProfile<1, 1, [SDTCisInt<0>,
225 [SDNPHasChain, SDNPSideEffect]>;
226 def X86eh_sjlj_longjmp : SDNode<"X86ISD::EH_SJLJ_LONGJMP",
227 SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>,
228 [SDNPHasChain, SDNPSideEffect]>;
230 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
231 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
233 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
235 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
236 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
238 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
240 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
241 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
243 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
244 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
245 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
247 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
249 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
252 def X86blsi : SDNode<"X86ISD::BLSI", SDTIntUnaryOp>;
253 def X86blsmsk : SDNode<"X86ISD::BLSMSK", SDTIntUnaryOp>;
254 def X86blsr : SDNode<"X86ISD::BLSR", SDTIntUnaryOp>;
255 def X86bzhi : SDNode<"X86ISD::BZHI", SDTIntShiftOp>;
256 def X86bextr : SDNode<"X86ISD::BEXTR", SDTIntBinOp>;
258 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
260 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
261 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
263 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
266 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
267 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
269 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
270 [SDNPHasChain, SDNPOutGlue]>;
272 //===----------------------------------------------------------------------===//
273 // X86 Operand Definitions.
276 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
277 // the index operand of an address, to conform to x86 encoding restrictions.
278 def ptr_rc_nosp : PointerLikeRegClass<1>;
280 // *mem - Operand definitions for the funky X86 addressing mode operands.
282 def X86MemAsmOperand : AsmOperandClass {
285 def X86Mem8AsmOperand : AsmOperandClass {
286 let Name = "Mem8"; let RenderMethod = "addMemOperands";
288 def X86Mem16AsmOperand : AsmOperandClass {
289 let Name = "Mem16"; let RenderMethod = "addMemOperands";
291 def X86Mem32AsmOperand : AsmOperandClass {
292 let Name = "Mem32"; let RenderMethod = "addMemOperands";
294 def X86Mem64AsmOperand : AsmOperandClass {
295 let Name = "Mem64"; let RenderMethod = "addMemOperands";
297 def X86Mem80AsmOperand : AsmOperandClass {
298 let Name = "Mem80"; let RenderMethod = "addMemOperands";
300 def X86Mem128AsmOperand : AsmOperandClass {
301 let Name = "Mem128"; let RenderMethod = "addMemOperands";
303 def X86Mem256AsmOperand : AsmOperandClass {
304 let Name = "Mem256"; let RenderMethod = "addMemOperands";
306 def X86Mem512AsmOperand : AsmOperandClass {
307 let Name = "Mem512"; let RenderMethod = "addMemOperands";
310 // Gather mem operands
311 def X86MemVX32Operand : AsmOperandClass {
312 let Name = "MemVX32"; let RenderMethod = "addMemOperands";
314 def X86MemVY32Operand : AsmOperandClass {
315 let Name = "MemVY32"; let RenderMethod = "addMemOperands";
317 def X86MemVZ32Operand : AsmOperandClass {
318 let Name = "MemVZ32"; let RenderMethod = "addMemOperands";
320 def X86MemVX64Operand : AsmOperandClass {
321 let Name = "MemVX64"; let RenderMethod = "addMemOperands";
323 def X86MemVY64Operand : AsmOperandClass {
324 let Name = "MemVY64"; let RenderMethod = "addMemOperands";
326 def X86MemVZ64Operand : AsmOperandClass {
327 let Name = "MemVZ64"; let RenderMethod = "addMemOperands";
330 def X86AbsMemAsmOperand : AsmOperandClass {
332 let SuperClasses = [X86MemAsmOperand];
334 class X86MemOperand<string printMethod> : Operand<iPTR> {
335 let PrintMethod = printMethod;
336 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
337 let ParserMatchClass = X86MemAsmOperand;
340 let OperandType = "OPERAND_MEMORY" in {
341 def opaque32mem : X86MemOperand<"printopaquemem">;
342 def opaque48mem : X86MemOperand<"printopaquemem">;
343 def opaque80mem : X86MemOperand<"printopaquemem">;
344 def opaque512mem : X86MemOperand<"printopaquemem">;
346 def i8mem : X86MemOperand<"printi8mem"> {
347 let ParserMatchClass = X86Mem8AsmOperand; }
348 def i16mem : X86MemOperand<"printi16mem"> {
349 let ParserMatchClass = X86Mem16AsmOperand; }
350 def i32mem : X86MemOperand<"printi32mem"> {
351 let ParserMatchClass = X86Mem32AsmOperand; }
352 def i64mem : X86MemOperand<"printi64mem"> {
353 let ParserMatchClass = X86Mem64AsmOperand; }
354 def i128mem : X86MemOperand<"printi128mem"> {
355 let ParserMatchClass = X86Mem128AsmOperand; }
356 def i256mem : X86MemOperand<"printi256mem"> {
357 let ParserMatchClass = X86Mem256AsmOperand; }
358 def i512mem : X86MemOperand<"printi512mem"> {
359 let ParserMatchClass = X86Mem512AsmOperand; }
360 def f32mem : X86MemOperand<"printf32mem"> {
361 let ParserMatchClass = X86Mem32AsmOperand; }
362 def f64mem : X86MemOperand<"printf64mem"> {
363 let ParserMatchClass = X86Mem64AsmOperand; }
364 def f80mem : X86MemOperand<"printf80mem"> {
365 let ParserMatchClass = X86Mem80AsmOperand; }
366 def f128mem : X86MemOperand<"printf128mem"> {
367 let ParserMatchClass = X86Mem128AsmOperand; }
368 def f256mem : X86MemOperand<"printf256mem">{
369 let ParserMatchClass = X86Mem256AsmOperand; }
370 def f512mem : X86MemOperand<"printf512mem">{
371 let ParserMatchClass = X86Mem512AsmOperand; }
372 def v512mem : Operand<iPTR> {
373 let PrintMethod = "printf512mem";
374 let MIOperandInfo = (ops ptr_rc, i8imm, VR512, i32imm, i8imm);
375 let ParserMatchClass = X86Mem512AsmOperand; }
377 // Gather mem operands
378 def vx32mem : X86MemOperand<"printi32mem">{
379 let MIOperandInfo = (ops ptr_rc, i8imm, VR128, i32imm, i8imm);
380 let ParserMatchClass = X86MemVX32Operand; }
381 def vy32mem : X86MemOperand<"printi32mem">{
382 let MIOperandInfo = (ops ptr_rc, i8imm, VR256, i32imm, i8imm);
383 let ParserMatchClass = X86MemVY32Operand; }
384 def vx64mem : X86MemOperand<"printi64mem">{
385 let MIOperandInfo = (ops ptr_rc, i8imm, VR128, i32imm, i8imm);
386 let ParserMatchClass = X86MemVX64Operand; }
387 def vy64mem : X86MemOperand<"printi64mem">{
388 let MIOperandInfo = (ops ptr_rc, i8imm, VR256, i32imm, i8imm);
389 let ParserMatchClass = X86MemVY64Operand; }
390 def vy64xmem : X86MemOperand<"printi64mem">{
391 let MIOperandInfo = (ops ptr_rc, i8imm, VR256X, i32imm, i8imm);
392 let ParserMatchClass = X86MemVY64Operand; }
393 def vz32mem : X86MemOperand<"printi32mem">{
394 let MIOperandInfo = (ops ptr_rc, i16imm, VR512, i32imm, i8imm);
395 let ParserMatchClass = X86MemVZ32Operand; }
396 def vz64mem : X86MemOperand<"printi64mem">{
397 let MIOperandInfo = (ops ptr_rc, i8imm, VR512, i32imm, i8imm);
398 let ParserMatchClass = X86MemVZ64Operand; }
401 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
402 // plain GR64, so that it doesn't potentially require a REX prefix.
403 def i8mem_NOREX : Operand<i64> {
404 let PrintMethod = "printi8mem";
405 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
406 let ParserMatchClass = X86Mem8AsmOperand;
407 let OperandType = "OPERAND_MEMORY";
410 // GPRs available for tailcall.
411 // It represents GR32_TC, GR64_TC or GR64_TCW64.
412 def ptr_rc_tailcall : PointerLikeRegClass<2>;
414 // Special i32mem for addresses of load folding tail calls. These are not
415 // allowed to use callee-saved registers since they must be scheduled
416 // after callee-saved register are popped.
417 def i32mem_TC : Operand<i32> {
418 let PrintMethod = "printi32mem";
419 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
421 let ParserMatchClass = X86Mem32AsmOperand;
422 let OperandType = "OPERAND_MEMORY";
425 // Special i64mem for addresses of load folding tail calls. These are not
426 // allowed to use callee-saved registers since they must be scheduled
427 // after callee-saved register are popped.
428 def i64mem_TC : Operand<i64> {
429 let PrintMethod = "printi64mem";
430 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
431 ptr_rc_tailcall, i32imm, i8imm);
432 let ParserMatchClass = X86Mem64AsmOperand;
433 let OperandType = "OPERAND_MEMORY";
436 let OperandType = "OPERAND_PCREL",
437 ParserMatchClass = X86AbsMemAsmOperand,
438 PrintMethod = "printPCRelImm" in {
439 def i32imm_pcrel : Operand<i32>;
440 def i16imm_pcrel : Operand<i16>;
442 // Branch targets have OtherVT type and print as pc-relative values.
443 def brtarget : Operand<OtherVT>;
444 def brtarget8 : Operand<OtherVT>;
448 def X86MemOffs8AsmOperand : AsmOperandClass {
449 let Name = "MemOffs8";
450 let RenderMethod = "addMemOffsOperands";
451 let SuperClasses = [X86Mem8AsmOperand];
453 def X86MemOffs16AsmOperand : AsmOperandClass {
454 let Name = "MemOffs16";
455 let RenderMethod = "addMemOffsOperands";
456 let SuperClasses = [X86Mem16AsmOperand];
458 def X86MemOffs32AsmOperand : AsmOperandClass {
459 let Name = "MemOffs32";
460 let RenderMethod = "addMemOffsOperands";
461 let SuperClasses = [X86Mem32AsmOperand];
463 def X86MemOffs64AsmOperand : AsmOperandClass {
464 let Name = "MemOffs64";
465 let RenderMethod = "addMemOffsOperands";
466 let SuperClasses = [X86Mem64AsmOperand];
469 let OperandType = "OPERAND_MEMORY" in {
470 def offset8 : Operand<i64> {
471 let ParserMatchClass = X86MemOffs8AsmOperand;
472 let PrintMethod = "printMemOffs8"; }
473 def offset16 : Operand<i64> {
474 let ParserMatchClass = X86MemOffs16AsmOperand;
475 let PrintMethod = "printMemOffs16"; }
476 def offset32 : Operand<i64> {
477 let ParserMatchClass = X86MemOffs32AsmOperand;
478 let PrintMethod = "printMemOffs32"; }
479 def offset64 : Operand<i64> {
480 let ParserMatchClass = X86MemOffs64AsmOperand;
481 let PrintMethod = "printMemOffs64"; }
485 def SSECC : Operand<i8> {
486 let PrintMethod = "printSSECC";
487 let OperandType = "OPERAND_IMMEDIATE";
490 def AVXCC : Operand<i8> {
491 let PrintMethod = "printAVXCC";
492 let OperandType = "OPERAND_IMMEDIATE";
495 class ImmSExtAsmOperandClass : AsmOperandClass {
496 let SuperClasses = [ImmAsmOperand];
497 let RenderMethod = "addImmOperands";
500 class ImmZExtAsmOperandClass : AsmOperandClass {
501 let SuperClasses = [ImmAsmOperand];
502 let RenderMethod = "addImmOperands";
505 def X86GR32orGR64AsmOperand : AsmOperandClass {
506 let Name = "GR32orGR64";
509 def GR32orGR64 : RegisterOperand<GR32> {
510 let ParserMatchClass = X86GR32orGR64AsmOperand;
513 // Sign-extended immediate classes. We don't need to define the full lattice
514 // here because there is no instruction with an ambiguity between ImmSExti64i32
517 // The strange ranges come from the fact that the assembler always works with
518 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
519 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
522 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
523 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
524 let Name = "ImmSExti64i32";
527 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
528 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
529 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
530 let Name = "ImmSExti16i8";
531 let SuperClasses = [ImmSExti64i32AsmOperand];
534 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
535 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
536 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
537 let Name = "ImmSExti32i8";
541 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
542 let Name = "ImmZExtu32u8";
547 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
548 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
549 let Name = "ImmSExti64i8";
550 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
551 ImmSExti64i32AsmOperand];
554 // A couple of more descriptive operand definitions.
555 // 16-bits but only 8 bits are significant.
556 def i16i8imm : Operand<i16> {
557 let ParserMatchClass = ImmSExti16i8AsmOperand;
558 let OperandType = "OPERAND_IMMEDIATE";
560 // 32-bits but only 8 bits are significant.
561 def i32i8imm : Operand<i32> {
562 let ParserMatchClass = ImmSExti32i8AsmOperand;
563 let OperandType = "OPERAND_IMMEDIATE";
565 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
566 def u32u8imm : Operand<i32> {
567 let ParserMatchClass = ImmZExtu32u8AsmOperand;
568 let OperandType = "OPERAND_IMMEDIATE";
571 // 64-bits but only 32 bits are significant.
572 def i64i32imm : Operand<i64> {
573 let ParserMatchClass = ImmSExti64i32AsmOperand;
574 let OperandType = "OPERAND_IMMEDIATE";
577 // 64-bits but only 32 bits are significant, and those bits are treated as being
579 def i64i32imm_pcrel : Operand<i64> {
580 let PrintMethod = "printPCRelImm";
581 let ParserMatchClass = X86AbsMemAsmOperand;
582 let OperandType = "OPERAND_PCREL";
585 // 64-bits but only 8 bits are significant.
586 def i64i8imm : Operand<i64> {
587 let ParserMatchClass = ImmSExti64i8AsmOperand;
588 let OperandType = "OPERAND_IMMEDIATE";
591 def lea64_32mem : Operand<i32> {
592 let PrintMethod = "printi32mem";
593 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
594 let ParserMatchClass = X86MemAsmOperand;
597 // Memory operands that use 64-bit pointers in both ILP32 and LP64.
598 def lea64mem : Operand<i64> {
599 let PrintMethod = "printi64mem";
600 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
601 let ParserMatchClass = X86MemAsmOperand;
605 //===----------------------------------------------------------------------===//
606 // X86 Complex Pattern Definitions.
609 // Define X86 specific addressing mode.
610 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
611 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
612 [add, sub, mul, X86mul_imm, shl, or, frameindex],
614 // In 64-bit mode 32-bit LEAs can use RIP-relative addressing.
615 def lea64_32addr : ComplexPattern<i32, 5, "SelectLEA64_32Addr",
616 [add, sub, mul, X86mul_imm, shl, or,
617 frameindex, X86WrapperRIP],
620 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
621 [tglobaltlsaddr], []>;
623 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
624 [tglobaltlsaddr], []>;
626 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
627 [add, sub, mul, X86mul_imm, shl, or, frameindex,
630 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
631 [tglobaltlsaddr], []>;
633 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
634 [tglobaltlsaddr], []>;
636 //===----------------------------------------------------------------------===//
637 // X86 Instruction Predicate Definitions.
638 def HasCMov : Predicate<"Subtarget->hasCMov()">;
639 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
641 def HasMMX : Predicate<"Subtarget->hasMMX()">;
642 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
643 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
644 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
645 def UseSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
646 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
647 def UseSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
648 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
649 def UseSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
650 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
651 def UseSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
652 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
653 def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
654 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
655 def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
656 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
657 def HasAVX : Predicate<"Subtarget->hasAVX()">;
658 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
659 def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;
660 def HasAVX512 : Predicate<"Subtarget->hasAVX512()">;
661 def UseAVX : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX512()">;
662 def UseAVX2 : Predicate<"Subtarget->hasAVX2() && !Subtarget->hasAVX512()">;
663 def NoAVX512 : Predicate<"!Subtarget->hasAVX512()">;
664 def HasCDI : Predicate<"Subtarget->hasCDI()">;
665 def HasPFI : Predicate<"Subtarget->hasPFI()">;
666 def HasERI : Predicate<"Subtarget->hasERI()">;
668 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
669 def HasAES : Predicate<"Subtarget->hasAES()">;
670 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
671 def HasFMA : Predicate<"Subtarget->hasFMA()">;
672 def UseFMAOnAVX : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
673 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
674 def HasXOP : Predicate<"Subtarget->hasXOP()">;
675 def HasTBM : Predicate<"Subtarget->hasTBM()">;
676 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
677 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
678 def HasF16C : Predicate<"Subtarget->hasF16C()">;
679 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
680 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
681 def HasBMI : Predicate<"Subtarget->hasBMI()">;
682 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
683 def HasRTM : Predicate<"Subtarget->hasRTM()">;
684 def HasHLE : Predicate<"Subtarget->hasHLE()">;
685 def HasTSX : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
686 def HasADX : Predicate<"Subtarget->hasADX()">;
687 def HasSHA : Predicate<"Subtarget->hasSHA()">;
688 def HasPRFCHW : Predicate<"Subtarget->hasPRFCHW()">;
689 def HasRDSEED : Predicate<"Subtarget->hasRDSEED()">;
690 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;
691 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
692 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
693 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
694 def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
695 AssemblerPredicate<"!Mode64Bit", "32-bit mode">;
696 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
697 AssemblerPredicate<"Mode64Bit", "64-bit mode">;
698 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
699 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
700 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
701 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
702 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
703 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
704 "TM.getCodeModel() != CodeModel::Kernel">;
705 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
706 "TM.getCodeModel() == CodeModel::Kernel">;
707 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
708 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
709 def OptForSize : Predicate<"OptForSize">;
710 def OptForSpeed : Predicate<"!OptForSize">;
711 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
712 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
713 def FavorMemIndirectCall : Predicate<"!Subtarget->callRegIndirect()">;
715 //===----------------------------------------------------------------------===//
716 // X86 Instruction Format Definitions.
719 include "X86InstrFormats.td"
721 //===----------------------------------------------------------------------===//
722 // Pattern fragments.
725 // X86 specific condition code. These correspond to CondCode in
726 // X86InstrInfo.h. They must be kept in synch.
727 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
728 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
729 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
730 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
731 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
732 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
733 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
734 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
735 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
736 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
737 def X86_COND_NO : PatLeaf<(i8 10)>;
738 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
739 def X86_COND_NS : PatLeaf<(i8 12)>;
740 def X86_COND_O : PatLeaf<(i8 13)>;
741 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
742 def X86_COND_S : PatLeaf<(i8 15)>;
744 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
745 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
746 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
747 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
750 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
753 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
755 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
757 def i64immZExt32SExt8 : ImmLeaf<i64, [{
758 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
761 // Helper fragments for loads.
762 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
763 // known to be 32-bit aligned or better. Ditto for i8 to i16.
764 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
765 LoadSDNode *LD = cast<LoadSDNode>(N);
766 ISD::LoadExtType ExtType = LD->getExtensionType();
767 if (ExtType == ISD::NON_EXTLOAD)
769 if (ExtType == ISD::EXTLOAD)
770 return LD->getAlignment() >= 2 && !LD->isVolatile();
774 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
775 LoadSDNode *LD = cast<LoadSDNode>(N);
776 ISD::LoadExtType ExtType = LD->getExtensionType();
777 if (ExtType == ISD::EXTLOAD)
778 return LD->getAlignment() >= 2 && !LD->isVolatile();
782 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
783 LoadSDNode *LD = cast<LoadSDNode>(N);
784 ISD::LoadExtType ExtType = LD->getExtensionType();
785 if (ExtType == ISD::NON_EXTLOAD)
787 if (ExtType == ISD::EXTLOAD)
788 return LD->getAlignment() >= 4 && !LD->isVolatile();
792 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
793 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
794 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
795 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
796 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
798 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
799 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
800 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
801 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
802 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
803 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
805 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
806 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
807 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
808 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
809 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
810 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
811 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
812 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
813 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
814 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
816 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
817 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
818 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
819 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
820 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
821 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
822 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
823 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
824 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
825 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
828 // An 'and' node with a single use.
829 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
830 return N->hasOneUse();
832 // An 'srl' node with a single use.
833 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
834 return N->hasOneUse();
836 // An 'trunc' node with a single use.
837 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
838 return N->hasOneUse();
841 //===----------------------------------------------------------------------===//
846 let neverHasSideEffects = 1, SchedRW = [WriteZero] in {
847 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
848 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
849 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize;
850 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
851 "nop{l}\t$zero", [], IIC_NOP>, TB;
855 // Constructing a stack frame.
856 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
857 "enter\t$len, $lvl", [], IIC_ENTER>, Sched<[WriteMicrocoded]>;
859 let SchedRW = [WriteALU] in {
860 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
861 def LEAVE : I<0xC9, RawFrm,
862 (outs), (ins), "leave", [], IIC_LEAVE>,
863 Requires<[In32BitMode]>;
865 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
866 def LEAVE64 : I<0xC9, RawFrm,
867 (outs), (ins), "leave", [], IIC_LEAVE>,
868 Requires<[In64BitMode]>;
871 //===----------------------------------------------------------------------===//
872 // Miscellaneous Instructions.
875 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
876 let mayLoad = 1, SchedRW = [WriteLoad] in {
877 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
878 IIC_POP_REG16>, OpSize;
879 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
881 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
882 IIC_POP_REG>, OpSize;
883 def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
884 IIC_POP_MEM>, OpSize;
885 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
887 def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
890 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>, OpSize;
891 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
892 Requires<[In32BitMode]>;
893 } // mayLoad, SchedRW
895 let mayStore = 1, SchedRW = [WriteStore] in {
896 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
897 IIC_PUSH_REG>, OpSize;
898 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
900 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
901 IIC_PUSH_REG>, OpSize;
902 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
905 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
907 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
910 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
911 "push{l}\t$imm", [], IIC_PUSH_IMM>;
912 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
913 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize;
914 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
915 "push{l}\t$imm", [], IIC_PUSH_IMM>;
917 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
919 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
920 Requires<[In32BitMode]>;
922 } // mayStore, SchedRW
925 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
926 let mayLoad = 1, SchedRW = [WriteLoad] in {
927 def POP64r : I<0x58, AddRegFrm,
928 (outs GR64:$reg), (ins), "pop{q}\t$reg", [], IIC_POP_REG>;
929 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
931 def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
933 } // mayLoad, SchedRW
934 let mayStore = 1, SchedRW = [WriteStore] in {
935 def PUSH64r : I<0x50, AddRegFrm,
936 (outs), (ins GR64:$reg), "push{q}\t$reg", [], IIC_PUSH_REG>;
937 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
939 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
941 } // mayStore, SchedRW
944 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1,
945 SchedRW = [WriteStore] in {
946 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
947 "push{q}\t$imm", [], IIC_PUSH_IMM>;
948 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
949 "push{q}\t$imm", [], IIC_PUSH_IMM>;
950 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
951 "push{q}\t$imm", [], IIC_PUSH_IMM>;
954 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
955 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
956 Requires<[In64BitMode]>, Sched<[WriteLoad]>;
957 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
958 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
959 Requires<[In64BitMode]>, Sched<[WriteStore]>;
961 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
962 mayLoad = 1, neverHasSideEffects = 1, SchedRW = [WriteLoad] in {
963 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", [], IIC_POP_A>,
964 Requires<[In32BitMode]>;
966 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
967 mayStore = 1, neverHasSideEffects = 1, SchedRW = [WriteStore] in {
968 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", [], IIC_PUSH_A>,
969 Requires<[In32BitMode]>;
972 let Constraints = "$src = $dst", SchedRW = [WriteALU] in {
974 def BSWAP32r : I<0xC8, AddRegFrm,
975 (outs GR32:$dst), (ins GR32:$src),
977 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, TB;
979 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
981 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
982 } // Constraints = "$src = $dst", SchedRW
984 // Bit scan instructions.
985 let Defs = [EFLAGS] in {
986 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
987 "bsf{w}\t{$src, $dst|$dst, $src}",
988 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
989 IIC_BIT_SCAN_REG>, TB, OpSize, Sched<[WriteShift]>;
990 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
991 "bsf{w}\t{$src, $dst|$dst, $src}",
992 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
993 IIC_BIT_SCAN_MEM>, TB, OpSize, Sched<[WriteShiftLd]>;
994 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
995 "bsf{l}\t{$src, $dst|$dst, $src}",
996 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))],
997 IIC_BIT_SCAN_REG>, TB,
999 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1000 "bsf{l}\t{$src, $dst|$dst, $src}",
1001 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
1002 IIC_BIT_SCAN_MEM>, TB, Sched<[WriteShiftLd]>;
1003 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1004 "bsf{q}\t{$src, $dst|$dst, $src}",
1005 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
1006 IIC_BIT_SCAN_REG>, TB, Sched<[WriteShift]>;
1007 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1008 "bsf{q}\t{$src, $dst|$dst, $src}",
1009 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
1010 IIC_BIT_SCAN_MEM>, TB, Sched<[WriteShiftLd]>;
1012 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1013 "bsr{w}\t{$src, $dst|$dst, $src}",
1014 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))],
1016 TB, OpSize, Sched<[WriteShift]>;
1017 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1018 "bsr{w}\t{$src, $dst|$dst, $src}",
1019 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
1020 IIC_BIT_SCAN_MEM>, TB,
1021 OpSize, Sched<[WriteShiftLd]>;
1022 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1023 "bsr{l}\t{$src, $dst|$dst, $src}",
1024 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))],
1025 IIC_BIT_SCAN_REG>, TB,
1026 Sched<[WriteShift]>;
1027 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1028 "bsr{l}\t{$src, $dst|$dst, $src}",
1029 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
1030 IIC_BIT_SCAN_MEM>, TB, Sched<[WriteShiftLd]>;
1031 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1032 "bsr{q}\t{$src, $dst|$dst, $src}",
1033 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))], IIC_BIT_SCAN_REG>, TB,
1034 Sched<[WriteShift]>;
1035 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1036 "bsr{q}\t{$src, $dst|$dst, $src}",
1037 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
1038 IIC_BIT_SCAN_MEM>, TB, Sched<[WriteShiftLd]>;
1039 } // Defs = [EFLAGS]
1041 let SchedRW = [WriteMicrocoded] in {
1042 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1043 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
1044 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "movsb", [], IIC_MOVS>;
1045 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "movsw", [], IIC_MOVS>, OpSize;
1046 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "movs{l|d}", [], IIC_MOVS>;
1047 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", [], IIC_MOVS>;
1050 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1051 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
1052 def STOSB : I<0xAA, RawFrm, (outs), (ins), "stosb", [], IIC_STOS>;
1053 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
1054 def STOSW : I<0xAB, RawFrm, (outs), (ins), "stosw", [], IIC_STOS>, OpSize;
1055 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
1056 def STOSD : I<0xAB, RawFrm, (outs), (ins), "stos{l|d}", [], IIC_STOS>;
1057 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
1058 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", [], IIC_STOS>;
1060 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scasb", [], IIC_SCAS>;
1061 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scasw", [], IIC_SCAS>, OpSize;
1062 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l|d}", [], IIC_SCAS>;
1063 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", [], IIC_SCAS>;
1065 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmpsb", [], IIC_CMPS>;
1066 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmpsw", [], IIC_CMPS>, OpSize;
1067 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l|d}", [], IIC_CMPS>;
1068 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", [], IIC_CMPS>;
1071 //===----------------------------------------------------------------------===//
1072 // Move Instructions.
1074 let SchedRW = [WriteMove] in {
1075 let neverHasSideEffects = 1 in {
1076 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
1077 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1078 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1079 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
1080 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1081 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1082 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1083 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1086 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
1087 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
1088 "mov{b}\t{$src, $dst|$dst, $src}",
1089 [(set GR8:$dst, imm:$src)], IIC_MOV>;
1090 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
1091 "mov{w}\t{$src, $dst|$dst, $src}",
1092 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize;
1093 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
1094 "mov{l}\t{$src, $dst|$dst, $src}",
1095 [(set GR32:$dst, imm:$src)], IIC_MOV>;
1096 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
1097 "movabs{q}\t{$src, $dst|$dst, $src}",
1098 [(set GR64:$dst, imm:$src)], IIC_MOV>;
1099 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
1100 "mov{q}\t{$src, $dst|$dst, $src}",
1101 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
1105 let SchedRW = [WriteStore] in {
1106 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
1107 "mov{b}\t{$src, $dst|$dst, $src}",
1108 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1109 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
1110 "mov{w}\t{$src, $dst|$dst, $src}",
1111 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize;
1112 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
1113 "mov{l}\t{$src, $dst|$dst, $src}",
1114 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1115 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
1116 "mov{q}\t{$src, $dst|$dst, $src}",
1117 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
1120 let hasSideEffects = 0 in {
1122 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
1123 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
1124 let SchedRW = [WriteALU] in {
1125 let mayLoad = 1 in {
1126 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
1127 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1128 Requires<[In32BitMode]>;
1129 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
1130 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>, OpSize,
1131 Requires<[In32BitMode]>;
1132 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
1133 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1134 Requires<[In32BitMode]>;
1136 let mayStore = 1 in {
1137 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
1138 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>,
1139 Requires<[In32BitMode]>;
1140 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
1141 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>, OpSize,
1142 Requires<[In32BitMode]>;
1143 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
1144 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1145 Requires<[In32BitMode]>;
1149 // These forms all have full 64-bit absolute addresses in their instructions
1150 // and use the movabs mnemonic to indicate this specific form.
1151 let mayLoad = 1 in {
1152 def MOV64o8a : RIi64_NOREX<0xA0, RawFrm, (outs), (ins offset8:$src),
1153 "movabs{b}\t{$src, %al|al, $src}", []>,
1154 Requires<[In64BitMode]>;
1155 def MOV64o16a : RIi64_NOREX<0xA1, RawFrm, (outs), (ins offset16:$src),
1156 "movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize,
1157 Requires<[In64BitMode]>;
1158 def MOV64o32a : RIi64_NOREX<0xA1, RawFrm, (outs), (ins offset32:$src),
1159 "movabs{l}\t{$src, %eax|eax, $src}", []>,
1160 Requires<[In64BitMode]>;
1161 def MOV64o64a : RIi64<0xA1, RawFrm, (outs), (ins offset64:$src),
1162 "movabs{q}\t{$src, %rax|rax, $src}", []>,
1163 Requires<[In64BitMode]>;
1166 let mayStore = 1 in {
1167 def MOV64ao8 : RIi64_NOREX<0xA2, RawFrm, (outs offset8:$dst), (ins),
1168 "movabs{b}\t{%al, $dst|$dst, al}", []>,
1169 Requires<[In64BitMode]>;
1170 def MOV64ao16 : RIi64_NOREX<0xA3, RawFrm, (outs offset16:$dst), (ins),
1171 "movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize,
1172 Requires<[In64BitMode]>;
1173 def MOV64ao32 : RIi64_NOREX<0xA3, RawFrm, (outs offset32:$dst), (ins),
1174 "movabs{l}\t{%eax, $dst|$dst, eax}", []>,
1175 Requires<[In64BitMode]>;
1176 def MOV64ao64 : RIi64<0xA3, RawFrm, (outs offset64:$dst), (ins),
1177 "movabs{q}\t{%rax, $dst|$dst, rax}", []>,
1178 Requires<[In64BitMode]>;
1180 } // hasSideEffects = 0
1182 let isCodeGenOnly = 1, hasSideEffects = 0, SchedRW = [WriteMove] in {
1183 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1184 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1185 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1186 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
1187 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1188 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1189 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1190 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1193 let canFoldAsLoad = 1, isReMaterializable = 1, SchedRW = [WriteLoad] in {
1194 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1195 "mov{b}\t{$src, $dst|$dst, $src}",
1196 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1197 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1198 "mov{w}\t{$src, $dst|$dst, $src}",
1199 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize;
1200 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1201 "mov{l}\t{$src, $dst|$dst, $src}",
1202 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>;
1203 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1204 "mov{q}\t{$src, $dst|$dst, $src}",
1205 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1208 let SchedRW = [WriteStore] in {
1209 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1210 "mov{b}\t{$src, $dst|$dst, $src}",
1211 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1212 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1213 "mov{w}\t{$src, $dst|$dst, $src}",
1214 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize;
1215 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1216 "mov{l}\t{$src, $dst|$dst, $src}",
1217 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>;
1218 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1219 "mov{q}\t{$src, $dst|$dst, $src}",
1220 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1223 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1224 // that they can be used for copying and storing h registers, which can't be
1225 // encoded when a REX prefix is present.
1226 let isCodeGenOnly = 1 in {
1227 let neverHasSideEffects = 1 in
1228 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1229 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1230 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>,
1232 let mayStore = 1, neverHasSideEffects = 1 in
1233 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1234 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1235 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1236 IIC_MOV_MEM>, Sched<[WriteStore]>;
1237 let mayLoad = 1, neverHasSideEffects = 1,
1238 canFoldAsLoad = 1, isReMaterializable = 1 in
1239 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1240 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1241 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1242 IIC_MOV_MEM>, Sched<[WriteLoad]>;
1246 // Condition code ops, incl. set if equal/not equal/...
1247 let SchedRW = [WriteALU] in {
1248 let Defs = [EFLAGS], Uses = [AH] in
1249 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1250 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1251 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
1252 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1253 IIC_AHF>; // AH = flags
1256 //===----------------------------------------------------------------------===//
1257 // Bit tests instructions: BT, BTS, BTR, BTC.
1259 let Defs = [EFLAGS] in {
1260 let SchedRW = [WriteALU] in {
1261 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1262 "bt{w}\t{$src2, $src1|$src1, $src2}",
1263 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1265 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1266 "bt{l}\t{$src2, $src1|$src1, $src2}",
1267 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>, TB;
1268 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1269 "bt{q}\t{$src2, $src1|$src1, $src2}",
1270 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1273 // Unlike with the register+register form, the memory+register form of the
1274 // bt instruction does not ignore the high bits of the index. From ISel's
1275 // perspective, this is pretty bizarre. Make these instructions disassembly
1278 let mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteALULd] in {
1279 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1280 "bt{w}\t{$src2, $src1|$src1, $src2}",
1281 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1282 // (implicit EFLAGS)]
1284 >, OpSize, TB, Requires<[FastBTMem]>;
1285 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1286 "bt{l}\t{$src2, $src1|$src1, $src2}",
1287 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1288 // (implicit EFLAGS)]
1290 >, TB, Requires<[FastBTMem]>;
1291 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1292 "bt{q}\t{$src2, $src1|$src1, $src2}",
1293 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1294 // (implicit EFLAGS)]
1299 let SchedRW = [WriteALU] in {
1300 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1301 "bt{w}\t{$src2, $src1|$src1, $src2}",
1302 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1303 IIC_BT_RI>, OpSize, TB;
1304 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1305 "bt{l}\t{$src2, $src1|$src1, $src2}",
1306 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1308 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1309 "bt{q}\t{$src2, $src1|$src1, $src2}",
1310 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1314 // Note that these instructions don't need FastBTMem because that
1315 // only applies when the other operand is in a register. When it's
1316 // an immediate, bt is still fast.
1317 let SchedRW = [WriteALU] in {
1318 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1319 "bt{w}\t{$src2, $src1|$src1, $src2}",
1320 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1321 ], IIC_BT_MI>, OpSize, TB;
1322 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1323 "bt{l}\t{$src2, $src1|$src1, $src2}",
1324 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1326 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1327 "bt{q}\t{$src2, $src1|$src1, $src2}",
1328 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1329 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1332 let hasSideEffects = 0 in {
1333 let SchedRW = [WriteALU] in {
1334 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1335 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1337 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1338 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1339 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1340 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1343 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1344 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1345 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1347 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1348 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1349 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1350 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1353 let SchedRW = [WriteALU] in {
1354 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1355 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1357 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1358 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1359 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1360 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1363 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1364 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1365 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1367 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1368 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1369 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1370 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1373 let SchedRW = [WriteALU] in {
1374 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1375 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1377 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1378 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1379 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1380 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1383 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1384 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1385 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1387 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1388 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1389 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1390 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1393 let SchedRW = [WriteALU] in {
1394 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1395 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1397 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1398 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1399 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1400 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1403 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1404 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1405 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1407 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1408 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1409 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1410 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1413 let SchedRW = [WriteALU] in {
1414 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1415 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1417 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1418 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1419 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1420 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1423 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1424 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1425 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1427 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1428 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1429 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1430 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1433 let SchedRW = [WriteALU] in {
1434 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1435 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1437 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1438 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1439 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1440 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1443 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1444 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1445 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1447 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1448 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1449 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1450 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1452 } // hasSideEffects = 0
1453 } // Defs = [EFLAGS]
1456 //===----------------------------------------------------------------------===//
1460 // Atomic swap. These are just normal xchg instructions. But since a memory
1461 // operand is referenced, the atomicity is ensured.
1462 multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag,
1463 InstrItinClass itin> {
1464 let Constraints = "$val = $dst", SchedRW = [WriteALULd, WriteRMW] in {
1465 def NAME#8rm : I<opc8, MRMSrcMem, (outs GR8:$dst),
1466 (ins GR8:$val, i8mem:$ptr),
1467 !strconcat(mnemonic, "{b}\t{$val, $ptr|$ptr, $val}"),
1470 (!cast<PatFrag>(frag # "_8") addr:$ptr, GR8:$val))],
1472 def NAME#16rm : I<opc, MRMSrcMem, (outs GR16:$dst),
1473 (ins GR16:$val, i16mem:$ptr),
1474 !strconcat(mnemonic, "{w}\t{$val, $ptr|$ptr, $val}"),
1477 (!cast<PatFrag>(frag # "_16") addr:$ptr, GR16:$val))],
1479 def NAME#32rm : I<opc, MRMSrcMem, (outs GR32:$dst),
1480 (ins GR32:$val, i32mem:$ptr),
1481 !strconcat(mnemonic, "{l}\t{$val, $ptr|$ptr, $val}"),
1484 (!cast<PatFrag>(frag # "_32") addr:$ptr, GR32:$val))],
1486 def NAME#64rm : RI<opc, MRMSrcMem, (outs GR64:$dst),
1487 (ins GR64:$val, i64mem:$ptr),
1488 !strconcat(mnemonic, "{q}\t{$val, $ptr|$ptr, $val}"),
1491 (!cast<PatFrag>(frag # "_64") addr:$ptr, GR64:$val))],
1496 defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap", IIC_XCHG_MEM>;
1498 // Swap between registers.
1499 let SchedRW = [WriteALU] in {
1500 let Constraints = "$val = $dst" in {
1501 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1502 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1503 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1504 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>, OpSize;
1505 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1506 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1507 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1508 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1511 // Swap between EAX and other registers.
1512 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1513 "xchg{w}\t{$src, %ax|ax, $src}", [], IIC_XCHG_REG>, OpSize;
1514 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1515 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1516 Requires<[In32BitMode]>;
1517 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1518 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1519 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1520 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1521 Requires<[In64BitMode]>;
1522 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1523 "xchg{q}\t{$src, %rax|rax, $src}", [], IIC_XCHG_REG>;
1526 let SchedRW = [WriteALU] in {
1527 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1528 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1529 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1530 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1532 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1533 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1534 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1535 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1538 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1539 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1540 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1541 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1542 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1544 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1545 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1546 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1547 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1551 let SchedRW = [WriteALU] in {
1552 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1553 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1554 IIC_CMPXCHG_REG8>, TB;
1555 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1556 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1557 IIC_CMPXCHG_REG>, TB, OpSize;
1558 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1559 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1560 IIC_CMPXCHG_REG>, TB;
1561 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1562 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1563 IIC_CMPXCHG_REG>, TB;
1566 let SchedRW = [WriteALULd, WriteRMW] in {
1567 let mayLoad = 1, mayStore = 1 in {
1568 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1569 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1570 IIC_CMPXCHG_MEM8>, TB;
1571 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1572 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1573 IIC_CMPXCHG_MEM>, TB, OpSize;
1574 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1575 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1576 IIC_CMPXCHG_MEM>, TB;
1577 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1578 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1579 IIC_CMPXCHG_MEM>, TB;
1582 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1583 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1584 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1586 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1587 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1588 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1589 TB, Requires<[HasCmpxchg16b]>;
1593 // Lock instruction prefix
1594 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1596 // Rex64 instruction prefix
1597 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1599 // Data16 instruction prefix
1600 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1602 // Repeat string operation instruction prefixes
1603 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1604 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1605 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1606 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1607 // Repeat while not equal (used with CMPS and SCAS)
1608 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1612 // String manipulation instructions
1613 let SchedRW = [WriteMicrocoded] in {
1614 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", [], IIC_LODS>;
1615 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", [], IIC_LODS>, OpSize;
1616 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", [], IIC_LODS>;
1617 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", [], IIC_LODS>;
1620 let SchedRW = [WriteSystem] in {
1621 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", [], IIC_OUTS>;
1622 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", [], IIC_OUTS>, OpSize;
1623 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", [], IIC_OUTS>;
1626 // Flag instructions
1627 let SchedRW = [WriteALU] in {
1628 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1629 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1630 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1631 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1632 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1633 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1634 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1636 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1639 // Table lookup instructions
1640 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>,
1643 let SchedRW = [WriteMicrocoded] in {
1644 // ASCII Adjust After Addition
1645 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1646 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1647 Requires<[In32BitMode]>;
1649 // ASCII Adjust AX Before Division
1650 // sets AL, AH and EFLAGS and uses AL and AH
1651 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1652 "aad\t$src", [], IIC_AAD>, Requires<[In32BitMode]>;
1654 // ASCII Adjust AX After Multiply
1655 // sets AL, AH and EFLAGS and uses AL
1656 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1657 "aam\t$src", [], IIC_AAM>, Requires<[In32BitMode]>;
1659 // ASCII Adjust AL After Subtraction - sets
1660 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1661 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1662 Requires<[In32BitMode]>;
1664 // Decimal Adjust AL after Addition
1665 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1666 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1667 Requires<[In32BitMode]>;
1669 // Decimal Adjust AL after Subtraction
1670 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1671 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1672 Requires<[In32BitMode]>;
1675 let SchedRW = [WriteSystem] in {
1676 // Check Array Index Against Bounds
1677 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1678 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize,
1679 Requires<[In32BitMode]>;
1680 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1681 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>,
1682 Requires<[In32BitMode]>;
1684 // Adjust RPL Field of Segment Selector
1685 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1686 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1687 Requires<[In32BitMode]>;
1688 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1689 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1690 Requires<[In32BitMode]>;
1693 //===----------------------------------------------------------------------===//
1694 // MOVBE Instructions
1696 let Predicates = [HasMOVBE] in {
1697 let SchedRW = [WriteALULd] in {
1698 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1699 "movbe{w}\t{$src, $dst|$dst, $src}",
1700 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1702 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1703 "movbe{l}\t{$src, $dst|$dst, $src}",
1704 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1706 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1707 "movbe{q}\t{$src, $dst|$dst, $src}",
1708 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1711 let SchedRW = [WriteStore] in {
1712 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1713 "movbe{w}\t{$src, $dst|$dst, $src}",
1714 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1716 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1717 "movbe{l}\t{$src, $dst|$dst, $src}",
1718 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1720 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1721 "movbe{q}\t{$src, $dst|$dst, $src}",
1722 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1727 //===----------------------------------------------------------------------===//
1728 // RDRAND Instruction
1730 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1731 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1733 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize, TB;
1734 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1736 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, TB;
1737 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1739 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1742 //===----------------------------------------------------------------------===//
1743 // RDSEED Instruction
1745 let Predicates = [HasRDSEED], Defs = [EFLAGS] in {
1746 def RDSEED16r : I<0xC7, MRM7r, (outs GR16:$dst), (ins),
1748 [(set GR16:$dst, EFLAGS, (X86rdseed))]>, OpSize, TB;
1749 def RDSEED32r : I<0xC7, MRM7r, (outs GR32:$dst), (ins),
1751 [(set GR32:$dst, EFLAGS, (X86rdseed))]>, TB;
1752 def RDSEED64r : RI<0xC7, MRM7r, (outs GR64:$dst), (ins),
1754 [(set GR64:$dst, EFLAGS, (X86rdseed))]>, TB;
1757 //===----------------------------------------------------------------------===//
1758 // LZCNT Instruction
1760 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1761 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1762 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1763 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1765 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1766 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1767 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1768 (implicit EFLAGS)]>, XS, OpSize;
1770 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1771 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1772 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS;
1773 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1774 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1775 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1776 (implicit EFLAGS)]>, XS;
1778 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1779 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1780 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1782 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1783 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1784 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1785 (implicit EFLAGS)]>, XS;
1788 //===----------------------------------------------------------------------===//
1791 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1792 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1793 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1794 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
1796 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1797 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1798 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
1799 (implicit EFLAGS)]>, XS, OpSize;
1801 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1802 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1803 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS;
1804 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1805 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1806 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
1807 (implicit EFLAGS)]>, XS;
1809 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1810 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1811 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
1813 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1814 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1815 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
1816 (implicit EFLAGS)]>, XS;
1819 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
1820 RegisterClass RC, X86MemOperand x86memop, SDNode OpNode,
1822 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
1823 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1824 [(set RC:$dst, (OpNode RC:$src)), (implicit EFLAGS)]>, T8, VEX_4V;
1825 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
1826 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1827 [(set RC:$dst, (OpNode (ld_frag addr:$src))), (implicit EFLAGS)]>,
1831 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1832 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem,
1834 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem,
1835 X86blsr, loadi64>, VEX_W;
1836 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem,
1837 X86blsmsk, loadi32>;
1838 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem,
1839 X86blsmsk, loadi64>, VEX_W;
1840 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem,
1842 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem,
1843 X86blsi, loadi64>, VEX_W;
1846 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
1847 X86MemOperand x86memop, Intrinsic Int,
1849 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1850 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1851 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
1853 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
1854 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1855 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
1856 (implicit EFLAGS)]>, T8, VEX_4VOp3;
1859 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1860 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
1861 int_x86_bmi_bextr_32, loadi32>;
1862 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
1863 int_x86_bmi_bextr_64, loadi64>, VEX_W;
1866 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
1867 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
1868 int_x86_bmi_bzhi_32, loadi32>;
1869 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
1870 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
1873 def : Pat<(X86bzhi GR32:$src1, GR8:$src2),
1874 (BZHI32rr GR32:$src1,
1875 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
1876 def : Pat<(X86bzhi (loadi32 addr:$src1), GR8:$src2),
1877 (BZHI32rm addr:$src1,
1878 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
1879 def : Pat<(X86bzhi GR64:$src1, GR8:$src2),
1880 (BZHI64rr GR64:$src1,
1881 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
1882 def : Pat<(X86bzhi (loadi64 addr:$src1), GR8:$src2),
1883 (BZHI64rm addr:$src1,
1884 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$src2, sub_8bit))>;
1886 let Predicates = [HasBMI] in {
1887 def : Pat<(X86bextr GR32:$src1, GR32:$src2),
1888 (BEXTR32rr GR32:$src1, GR32:$src2)>;
1889 def : Pat<(X86bextr (loadi32 addr:$src1), GR32:$src2),
1890 (BEXTR32rm addr:$src1, GR32:$src2)>;
1891 def : Pat<(X86bextr GR64:$src1, GR64:$src2),
1892 (BEXTR64rr GR64:$src1, GR64:$src2)>;
1893 def : Pat<(X86bextr (loadi64 addr:$src1), GR64:$src2),
1894 (BEXTR64rm addr:$src1, GR64:$src2)>;
1897 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
1898 X86MemOperand x86memop, Intrinsic Int,
1900 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1901 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1902 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
1904 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
1905 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1906 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
1909 let Predicates = [HasBMI2] in {
1910 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
1911 int_x86_bmi_pdep_32, loadi32>, T8XD;
1912 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
1913 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
1914 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
1915 int_x86_bmi_pext_32, loadi32>, T8XS;
1916 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
1917 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
1920 //===----------------------------------------------------------------------===//
1923 let Predicates = [HasTBM], Defs = [EFLAGS] in {
1925 multiclass tbm_ternary_imm_intr<bits<8> opc, RegisterClass RC, string OpcodeStr,
1926 X86MemOperand x86memop, PatFrag ld_frag,
1927 Intrinsic Int, Operand immtype,
1928 SDPatternOperator immoperator> {
1929 def ri : Ii32<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, immtype:$cntl),
1930 !strconcat(OpcodeStr,
1931 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
1932 [(set RC:$dst, (Int RC:$src1, immoperator:$cntl))]>,
1934 def mi : Ii32<opc, MRMSrcMem, (outs RC:$dst),
1935 (ins x86memop:$src1, immtype:$cntl),
1936 !strconcat(OpcodeStr,
1937 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
1938 [(set RC:$dst, (Int (ld_frag addr:$src1), immoperator:$cntl))]>,
1942 defm BEXTRI32 : tbm_ternary_imm_intr<0x10, GR32, "bextr", i32mem, loadi32,
1943 int_x86_tbm_bextri_u32, i32imm, imm>;
1944 defm BEXTRI64 : tbm_ternary_imm_intr<0x10, GR64, "bextr", i64mem, loadi64,
1945 int_x86_tbm_bextri_u64, i64i32imm,
1946 i64immSExt32>, VEX_W;
1948 multiclass tbm_binary_rm<bits<8> opc, Format FormReg, Format FormMem,
1949 RegisterClass RC, string OpcodeStr,
1950 X86MemOperand x86memop, PatFrag ld_frag> {
1951 let hasSideEffects = 0 in {
1952 def rr : I<opc, FormReg, (outs RC:$dst), (ins RC:$src),
1953 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
1954 []>, XOP, XOP9, VEX_4V;
1956 def rm : I<opc, FormMem, (outs RC:$dst), (ins x86memop:$src),
1957 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
1958 []>, XOP, XOP9, VEX_4V;
1962 multiclass tbm_binary_intr<bits<8> opc, string OpcodeStr,
1963 Format FormReg, Format FormMem> {
1964 defm NAME#32 : tbm_binary_rm<opc, FormReg, FormMem, GR32, OpcodeStr, i32mem,
1966 defm NAME#64 : tbm_binary_rm<opc, FormReg, FormMem, GR64, OpcodeStr, i64mem,
1970 defm BLCFILL : tbm_binary_intr<0x01, "blcfill", MRM1r, MRM1m>;
1971 defm BLCI : tbm_binary_intr<0x02, "blci", MRM6r, MRM6m>;
1972 defm BLCIC : tbm_binary_intr<0x01, "blcic", MRM5r, MRM5m>;
1973 defm BLCMSK : tbm_binary_intr<0x02, "blcmsk", MRM1r, MRM1m>;
1974 defm BLCS : tbm_binary_intr<0x01, "blcs", MRM3r, MRM3m>;
1975 defm BLSFILL : tbm_binary_intr<0x01, "blsfill", MRM2r, MRM2m>;
1976 defm BLSIC : tbm_binary_intr<0x01, "blsic", MRM6r, MRM6m>;
1977 defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
1978 defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
1981 //===----------------------------------------------------------------------===//
1982 // Pattern fragments to auto generate TBM instructions.
1983 //===----------------------------------------------------------------------===//
1985 let Predicates = [HasTBM] in {
1986 def : Pat<(X86bextr GR32:$src1, (i32 imm:$src2)),
1987 (BEXTRI32ri GR32:$src1, imm:$src2)>;
1988 def : Pat<(X86bextr (loadi32 addr:$src1), (i32 imm:$src2)),
1989 (BEXTRI32mi addr:$src1, imm:$src2)>;
1990 def : Pat<(X86bextr GR64:$src1, i64immSExt32:$src2),
1991 (BEXTRI64ri GR64:$src1, i64immSExt32:$src2)>;
1992 def : Pat<(X86bextr (loadi64 addr:$src1), i64immSExt32:$src2),
1993 (BEXTRI64mi addr:$src1, i64immSExt32:$src2)>;
1995 // FIXME: patterns for the load versions are not implemented
1996 def : Pat<(and GR32:$src, (add GR32:$src, 1)),
1997 (BLCFILL32rr GR32:$src)>;
1998 def : Pat<(and GR64:$src, (add GR64:$src, 1)),
1999 (BLCFILL64rr GR64:$src)>;
2001 def : Pat<(or GR32:$src, (not (add GR32:$src, 1))),
2002 (BLCI32rr GR32:$src)>;
2003 def : Pat<(or GR64:$src, (not (add GR64:$src, 1))),
2004 (BLCI64rr GR64:$src)>;
2006 // Extra patterns because opt can optimize the above patterns to this.
2007 def : Pat<(or GR32:$src, (sub -2, GR32:$src)),
2008 (BLCI32rr GR32:$src)>;
2009 def : Pat<(or GR64:$src, (sub -2, GR64:$src)),
2010 (BLCI64rr GR64:$src)>;
2012 def : Pat<(and (not GR32:$src), (add GR32:$src, 1)),
2013 (BLCIC32rr GR32:$src)>;
2014 def : Pat<(and (not GR64:$src), (add GR64:$src, 1)),
2015 (BLCIC64rr GR64:$src)>;
2017 def : Pat<(xor GR32:$src, (add GR32:$src, 1)),
2018 (BLCMSK32rr GR32:$src)>;
2019 def : Pat<(xor GR64:$src, (add GR64:$src, 1)),
2020 (BLCMSK64rr GR64:$src)>;
2022 def : Pat<(or GR32:$src, (add GR32:$src, 1)),
2023 (BLCS32rr GR32:$src)>;
2024 def : Pat<(or GR64:$src, (add GR64:$src, 1)),
2025 (BLCS64rr GR64:$src)>;
2027 def : Pat<(or GR32:$src, (add GR32:$src, -1)),
2028 (BLSFILL32rr GR32:$src)>;
2029 def : Pat<(or GR64:$src, (add GR64:$src, -1)),
2030 (BLSFILL64rr GR64:$src)>;
2032 def : Pat<(or (not GR32:$src), (add GR32:$src, -1)),
2033 (BLSIC32rr GR32:$src)>;
2034 def : Pat<(or (not GR64:$src), (add GR64:$src, -1)),
2035 (BLSIC64rr GR64:$src)>;
2037 def : Pat<(or (not GR32:$src), (add GR32:$src, 1)),
2038 (T1MSKC32rr GR32:$src)>;
2039 def : Pat<(or (not GR64:$src), (add GR64:$src, 1)),
2040 (T1MSKC64rr GR64:$src)>;
2042 def : Pat<(and (not GR32:$src), (add GR32:$src, -1)),
2043 (TZMSK32rr GR32:$src)>;
2044 def : Pat<(and (not GR64:$src), (add GR64:$src, -1)),
2045 (TZMSK64rr GR64:$src)>;
2048 //===----------------------------------------------------------------------===//
2050 //===----------------------------------------------------------------------===//
2052 include "X86InstrArithmetic.td"
2053 include "X86InstrCMovSetCC.td"
2054 include "X86InstrExtension.td"
2055 include "X86InstrControl.td"
2056 include "X86InstrShiftRotate.td"
2058 // X87 Floating Point Stack.
2059 include "X86InstrFPStack.td"
2061 // SIMD support (SSE, MMX and AVX)
2062 include "X86InstrFragmentsSIMD.td"
2064 // FMA - Fused Multiply-Add support (requires FMA)
2065 include "X86InstrFMA.td"
2068 include "X86InstrXOP.td"
2070 // SSE, MMX and 3DNow! vector support.
2071 include "X86InstrSSE.td"
2072 include "X86InstrAVX512.td"
2073 include "X86InstrMMX.td"
2074 include "X86Instr3DNow.td"
2076 include "X86InstrVMX.td"
2077 include "X86InstrSVM.td"
2079 include "X86InstrTSX.td"
2081 // System instructions.
2082 include "X86InstrSystem.td"
2084 // Compiler Pseudo Instructions and Pat Patterns
2085 include "X86InstrCompiler.td"
2087 //===----------------------------------------------------------------------===//
2088 // Assembler Mnemonic Aliases
2089 //===----------------------------------------------------------------------===//
2091 def : MnemonicAlias<"call", "calll", "att">, Requires<[In32BitMode]>;
2092 def : MnemonicAlias<"call", "callq", "att">, Requires<[In64BitMode]>;
2094 def : MnemonicAlias<"cbw", "cbtw", "att">;
2095 def : MnemonicAlias<"cwde", "cwtl", "att">;
2096 def : MnemonicAlias<"cwd", "cwtd", "att">;
2097 def : MnemonicAlias<"cdq", "cltd", "att">;
2098 def : MnemonicAlias<"cdqe", "cltq", "att">;
2099 def : MnemonicAlias<"cqo", "cqto", "att">;
2101 // lret maps to lretl, it is not ambiguous with lretq.
2102 def : MnemonicAlias<"lret", "lretl", "att">;
2104 def : MnemonicAlias<"leavel", "leave", "att">, Requires<[In32BitMode]>;
2105 def : MnemonicAlias<"leaveq", "leave", "att">, Requires<[In64BitMode]>;
2107 def : MnemonicAlias<"loopz", "loope", "att">;
2108 def : MnemonicAlias<"loopnz", "loopne", "att">;
2110 def : MnemonicAlias<"pop", "popl", "att">, Requires<[In32BitMode]>;
2111 def : MnemonicAlias<"pop", "popq", "att">, Requires<[In64BitMode]>;
2112 def : MnemonicAlias<"popf", "popfl", "att">, Requires<[In32BitMode]>;
2113 def : MnemonicAlias<"popf", "popfq", "att">, Requires<[In64BitMode]>;
2114 def : MnemonicAlias<"popfd", "popfl", "att">;
2116 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
2117 // all modes. However: "push (addr)" and "push $42" should default to
2118 // pushl/pushq depending on the current mode. Similar for "pop %bx"
2119 def : MnemonicAlias<"push", "pushl", "att">, Requires<[In32BitMode]>;
2120 def : MnemonicAlias<"push", "pushq", "att">, Requires<[In64BitMode]>;
2121 def : MnemonicAlias<"pushf", "pushfl", "att">, Requires<[In32BitMode]>;
2122 def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>;
2123 def : MnemonicAlias<"pushfd", "pushfl", "att">;
2125 def : MnemonicAlias<"popad", "popa", "intel">, Requires<[In32BitMode]>;
2126 def : MnemonicAlias<"pushad", "pusha", "intel">, Requires<[In32BitMode]>;
2128 def : MnemonicAlias<"repe", "rep", "att">;
2129 def : MnemonicAlias<"repz", "rep", "att">;
2130 def : MnemonicAlias<"repnz", "repne", "att">;
2132 def : MnemonicAlias<"retl", "ret", "att">, Requires<[In32BitMode]>;
2133 def : MnemonicAlias<"retq", "ret", "att">, Requires<[In64BitMode]>;
2135 def : MnemonicAlias<"salb", "shlb", "att">;
2136 def : MnemonicAlias<"salw", "shlw", "att">;
2137 def : MnemonicAlias<"sall", "shll", "att">;
2138 def : MnemonicAlias<"salq", "shlq", "att">;
2140 def : MnemonicAlias<"smovb", "movsb", "att">;
2141 def : MnemonicAlias<"smovw", "movsw", "att">;
2142 def : MnemonicAlias<"smovl", "movsl", "att">;
2143 def : MnemonicAlias<"smovq", "movsq", "att">;
2145 def : MnemonicAlias<"ud2a", "ud2", "att">;
2146 def : MnemonicAlias<"verrw", "verr", "att">;
2148 // System instruction aliases.
2149 def : MnemonicAlias<"iret", "iretl", "att">;
2150 def : MnemonicAlias<"sysret", "sysretl", "att">;
2151 def : MnemonicAlias<"sysexit", "sysexitl", "att">;
2153 def : MnemonicAlias<"lgdtl", "lgdt", "att">, Requires<[In32BitMode]>;
2154 def : MnemonicAlias<"lgdtq", "lgdt", "att">, Requires<[In64BitMode]>;
2155 def : MnemonicAlias<"lidtl", "lidt", "att">, Requires<[In32BitMode]>;
2156 def : MnemonicAlias<"lidtq", "lidt", "att">, Requires<[In64BitMode]>;
2157 def : MnemonicAlias<"sgdtl", "sgdt", "att">, Requires<[In32BitMode]>;
2158 def : MnemonicAlias<"sgdtq", "sgdt", "att">, Requires<[In64BitMode]>;
2159 def : MnemonicAlias<"sidtl", "sidt", "att">, Requires<[In32BitMode]>;
2160 def : MnemonicAlias<"sidtq", "sidt", "att">, Requires<[In64BitMode]>;
2163 // Floating point stack aliases.
2164 def : MnemonicAlias<"fcmovz", "fcmove", "att">;
2165 def : MnemonicAlias<"fcmova", "fcmovnbe", "att">;
2166 def : MnemonicAlias<"fcmovnae", "fcmovb", "att">;
2167 def : MnemonicAlias<"fcmovna", "fcmovbe", "att">;
2168 def : MnemonicAlias<"fcmovae", "fcmovnb", "att">;
2169 def : MnemonicAlias<"fcomip", "fcompi", "att">;
2170 def : MnemonicAlias<"fildq", "fildll", "att">;
2171 def : MnemonicAlias<"fistpq", "fistpll", "att">;
2172 def : MnemonicAlias<"fisttpq", "fisttpll", "att">;
2173 def : MnemonicAlias<"fldcww", "fldcw", "att">;
2174 def : MnemonicAlias<"fnstcww", "fnstcw", "att">;
2175 def : MnemonicAlias<"fnstsww", "fnstsw", "att">;
2176 def : MnemonicAlias<"fucomip", "fucompi", "att">;
2177 def : MnemonicAlias<"fwait", "wait", "att">;
2180 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond,
2182 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
2183 !strconcat(Prefix, NewCond, Suffix), VariantName>;
2185 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
2186 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
2187 /// example "setz" -> "sete".
2188 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix,
2190 def C : CondCodeAlias<Prefix, Suffix, "c", "b", V>; // setc -> setb
2191 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e", V>; // setz -> sete
2192 def NA : CondCodeAlias<Prefix, Suffix, "na", "be", V>; // setna -> setbe
2193 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae", V>; // setnb -> setae
2194 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae", V>; // setnc -> setae
2195 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le", V>; // setng -> setle
2196 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge", V>; // setnl -> setge
2197 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne", V>; // setnz -> setne
2198 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p", V>; // setpe -> setp
2199 def PO : CondCodeAlias<Prefix, Suffix, "po", "np", V>; // setpo -> setnp
2201 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b", V>; // setnae -> setb
2202 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a", V>; // setnbe -> seta
2203 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l", V>; // setnge -> setl
2204 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g", V>; // setnle -> setg
2207 // Aliases for set<CC>
2208 defm : IntegerCondCodeMnemonicAlias<"set", "">;
2209 // Aliases for j<CC>
2210 defm : IntegerCondCodeMnemonicAlias<"j", "">;
2211 // Aliases for cmov<CC>{w,l,q}
2212 defm : IntegerCondCodeMnemonicAlias<"cmov", "w", "att">;
2213 defm : IntegerCondCodeMnemonicAlias<"cmov", "l", "att">;
2214 defm : IntegerCondCodeMnemonicAlias<"cmov", "q", "att">;
2215 // No size suffix for intel-style asm.
2216 defm : IntegerCondCodeMnemonicAlias<"cmov", "", "intel">;
2219 //===----------------------------------------------------------------------===//
2220 // Assembler Instruction Aliases
2221 //===----------------------------------------------------------------------===//
2223 // aad/aam default to base 10 if no operand is specified.
2224 def : InstAlias<"aad", (AAD8i8 10)>;
2225 def : InstAlias<"aam", (AAM8i8 10)>;
2227 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
2228 // Likewise for btc/btr/bts.
2229 def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
2230 (BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2231 def : InstAlias<"btc {$imm, $mem|$mem, $imm}",
2232 (BTC32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2233 def : InstAlias<"btr {$imm, $mem|$mem, $imm}",
2234 (BTR32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2235 def : InstAlias<"bts {$imm, $mem|$mem, $imm}",
2236 (BTS32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2239 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
2240 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
2241 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
2242 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
2244 // div and idiv aliases for explicit A register.
2245 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8r GR8 :$src)>;
2246 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16r GR16:$src)>;
2247 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32r GR32:$src)>;
2248 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64r GR64:$src)>;
2249 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8m i8mem :$src)>;
2250 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16m i16mem:$src)>;
2251 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32m i32mem:$src)>;
2252 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64m i64mem:$src)>;
2253 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8r GR8 :$src)>;
2254 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16r GR16:$src)>;
2255 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32r GR32:$src)>;
2256 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64r GR64:$src)>;
2257 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8m i8mem :$src)>;
2258 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16m i16mem:$src)>;
2259 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32m i32mem:$src)>;
2260 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64m i64mem:$src)>;
2264 // Various unary fpstack operations default to operating on on ST1.
2265 // For example, "fxch" -> "fxch %st(1)"
2266 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
2267 def : InstAlias<"fsub{|r}p", (SUBR_FPrST0 ST1), 0>;
2268 def : InstAlias<"fsub{r|}p", (SUB_FPrST0 ST1), 0>;
2269 def : InstAlias<"fmulp", (MUL_FPrST0 ST1), 0>;
2270 def : InstAlias<"fdiv{|r}p", (DIVR_FPrST0 ST1), 0>;
2271 def : InstAlias<"fdiv{r|}p", (DIV_FPrST0 ST1), 0>;
2272 def : InstAlias<"fxch", (XCH_F ST1), 0>;
2273 def : InstAlias<"fcom", (COM_FST0r ST1), 0>;
2274 def : InstAlias<"fcomp", (COMP_FST0r ST1), 0>;
2275 def : InstAlias<"fcomi", (COM_FIr ST1), 0>;
2276 def : InstAlias<"fcompi", (COM_FIPr ST1), 0>;
2277 def : InstAlias<"fucom", (UCOM_Fr ST1), 0>;
2278 def : InstAlias<"fucomp", (UCOM_FPr ST1), 0>;
2279 def : InstAlias<"fucomi", (UCOM_FIr ST1), 0>;
2280 def : InstAlias<"fucompi", (UCOM_FIPr ST1), 0>;
2282 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
2283 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
2284 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
2286 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
2287 def : InstAlias<!strconcat(Mnemonic, "\t{$op, %st(0)|st(0), $op}"),
2288 (Inst RST:$op), EmitAlias>;
2289 def : InstAlias<!strconcat(Mnemonic, "\t{%st(0), %st(0)|st(0), st(0)}"),
2290 (Inst ST0), EmitAlias>;
2293 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
2294 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
2295 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
2296 defm : FpUnaryAlias<"fsub{|r}p", SUBR_FPrST0>;
2297 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
2298 defm : FpUnaryAlias<"fsub{r|}p", SUB_FPrST0>;
2299 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
2300 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
2301 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
2302 defm : FpUnaryAlias<"fdiv{|r}p", DIVR_FPrST0>;
2303 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
2304 defm : FpUnaryAlias<"fdiv{r|}p", DIV_FPrST0>;
2305 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
2306 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
2307 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
2308 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
2311 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
2312 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
2313 // solely because gas supports it.
2314 def : InstAlias<"faddp\t{%st(0), $op|$op, st(0)}", (ADD_FPrST0 RST:$op), 0>;
2315 def : InstAlias<"fmulp\t{%st(0), $op|$op, st(0)}", (MUL_FPrST0 RST:$op)>;
2316 def : InstAlias<"fsub{|r}p\t{%st(0), $op|$op, st(0)}", (SUBR_FPrST0 RST:$op)>;
2317 def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>;
2318 def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>;
2319 def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>;
2321 // We accept "fnstsw %eax" even though it only writes %ax.
2322 def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>;
2323 def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>;
2324 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
2326 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
2327 // this is compatible with what GAS does.
2328 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2329 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2330 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
2331 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
2333 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
2334 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
2335 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
2336 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
2337 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
2338 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
2339 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
2341 // inb %dx -> inb %al, %dx
2342 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
2343 def : InstAlias<"inw\t{%dx|dx}", (IN16rr), 0>;
2344 def : InstAlias<"inl\t{%dx|dx}", (IN32rr), 0>;
2345 def : InstAlias<"inb\t$port", (IN8ri i8imm:$port), 0>;
2346 def : InstAlias<"inw\t$port", (IN16ri i8imm:$port), 0>;
2347 def : InstAlias<"inl\t$port", (IN32ri i8imm:$port), 0>;
2350 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
2351 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2352 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2353 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
2354 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
2355 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2356 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2358 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
2359 // the move. All segment/mem forms are equivalent, this has the shortest
2361 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
2362 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
2364 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
2365 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
2367 // Match 'movq GR64, MMX' as an alias for movd.
2368 def : InstAlias<"movq $src, $dst",
2369 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
2370 def : InstAlias<"movq $src, $dst",
2371 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
2373 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
2374 // alias for movsl. (as in rep; movsd)
2375 def : InstAlias<"movsd", (MOVSD), 0>;
2378 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
2379 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
2380 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
2381 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
2382 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
2383 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
2384 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
2387 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
2388 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
2389 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
2390 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
2391 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
2392 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
2393 // Note: No GR32->GR64 movzx form.
2395 // outb %dx -> outb %al, %dx
2396 def : InstAlias<"outb\t{%dx|dx}", (OUT8rr), 0>;
2397 def : InstAlias<"outw\t{%dx|dx}", (OUT16rr), 0>;
2398 def : InstAlias<"outl\t{%dx|dx}", (OUT32rr), 0>;
2399 def : InstAlias<"outb\t$port", (OUT8ir i8imm:$port), 0>;
2400 def : InstAlias<"outw\t$port", (OUT16ir i8imm:$port), 0>;
2401 def : InstAlias<"outl\t$port", (OUT32ir i8imm:$port), 0>;
2403 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
2404 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
2405 // errors, since its encoding is the most compact.
2406 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
2408 // shld/shrd op,op -> shld op, op, CL
2409 def : InstAlias<"shld{w}\t{$r2, $r1|$r1, $r2}", (SHLD16rrCL GR16:$r1, GR16:$r2), 0>;
2410 def : InstAlias<"shld{l}\t{$r2, $r1|$r1, $r2}", (SHLD32rrCL GR32:$r1, GR32:$r2), 0>;
2411 def : InstAlias<"shld{q}\t{$r2, $r1|$r1, $r2}", (SHLD64rrCL GR64:$r1, GR64:$r2), 0>;
2412 def : InstAlias<"shrd{w}\t{$r2, $r1|$r1, $r2}", (SHRD16rrCL GR16:$r1, GR16:$r2), 0>;
2413 def : InstAlias<"shrd{l}\t{$r2, $r1|$r1, $r2}", (SHRD32rrCL GR32:$r1, GR32:$r2), 0>;
2414 def : InstAlias<"shrd{q}\t{$r2, $r1|$r1, $r2}", (SHRD64rrCL GR64:$r1, GR64:$r2), 0>;
2416 def : InstAlias<"shld{w}\t{$reg, $mem|$mem, $reg}", (SHLD16mrCL i16mem:$mem, GR16:$reg), 0>;
2417 def : InstAlias<"shld{l}\t{$reg, $mem|$mem, $reg}", (SHLD32mrCL i32mem:$mem, GR32:$reg), 0>;
2418 def : InstAlias<"shld{q}\t{$reg, $mem|$mem, $reg}", (SHLD64mrCL i64mem:$mem, GR64:$reg), 0>;
2419 def : InstAlias<"shrd{w}\t{$reg, $mem|$mem, $reg}", (SHRD16mrCL i16mem:$mem, GR16:$reg), 0>;
2420 def : InstAlias<"shrd{l}\t{$reg, $mem|$mem, $reg}", (SHRD32mrCL i32mem:$mem, GR32:$reg), 0>;
2421 def : InstAlias<"shrd{q}\t{$reg, $mem|$mem, $reg}", (SHRD64mrCL i64mem:$mem, GR64:$reg), 0>;
2423 /* FIXME: This is disabled because the asm matcher is currently incapable of
2424 * matching a fixed immediate like $1.
2425 // "shl X, $1" is an alias for "shl X".
2426 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
2427 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2428 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
2429 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2430 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
2431 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2432 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
2433 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2434 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
2435 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2436 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
2437 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2438 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
2439 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2440 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
2441 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2442 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
2445 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2446 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2447 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2448 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2451 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2452 def : InstAlias<"test{b}\t{$val, $mem|$mem, $val}", (TEST8rm GR8 :$val, i8mem :$mem)>;
2453 def : InstAlias<"test{w}\t{$val, $mem|$mem, $val}", (TEST16rm GR16:$val, i16mem:$mem)>;
2454 def : InstAlias<"test{l}\t{$val, $mem|$mem, $val}", (TEST32rm GR32:$val, i32mem:$mem)>;
2455 def : InstAlias<"test{q}\t{$val, $mem|$mem, $val}", (TEST64rm GR64:$val, i64mem:$mem)>;
2457 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2458 def : InstAlias<"xchg{b}\t{$mem, $val|$val, $mem}", (XCHG8rm GR8 :$val, i8mem :$mem)>;
2459 def : InstAlias<"xchg{w}\t{$mem, $val|$val, $mem}", (XCHG16rm GR16:$val, i16mem:$mem)>;
2460 def : InstAlias<"xchg{l}\t{$mem, $val|$val, $mem}", (XCHG32rm GR32:$val, i32mem:$mem)>;
2461 def : InstAlias<"xchg{q}\t{$mem, $val|$val, $mem}", (XCHG64rm GR64:$val, i64mem:$mem)>;
2463 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2464 def : InstAlias<"xchg{w}\t{%ax, $src|$src, ax}", (XCHG16ar GR16:$src)>;
2465 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}", (XCHG32ar GR32:$src)>, Requires<[In32BitMode]>;
2466 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}", (XCHG32ar64 GR32_NOAX:$src)>, Requires<[In64BitMode]>;
2467 def : InstAlias<"xchg{q}\t{%rax, $src|$src, rax}", (XCHG64ar GR64:$src)>;