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,
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>;
144 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
145 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
146 SDNPMayLoad, SDNPMemOperand]>;
147 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
148 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
149 SDNPMayLoad, SDNPMemOperand]>;
150 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
151 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
152 SDNPMayLoad, SDNPMemOperand]>;
154 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
155 [SDNPHasChain, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
157 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
158 [SDNPHasChain, SDNPMayStore,
159 SDNPMayLoad, SDNPMemOperand]>;
160 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
161 [SDNPHasChain, SDNPMayStore,
162 SDNPMayLoad, SDNPMemOperand]>;
163 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
164 [SDNPHasChain, SDNPMayStore,
165 SDNPMayLoad, SDNPMemOperand]>;
166 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
167 [SDNPHasChain, SDNPMayStore,
168 SDNPMayLoad, SDNPMemOperand]>;
169 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
170 [SDNPHasChain, SDNPMayStore,
171 SDNPMayLoad, SDNPMemOperand]>;
172 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
173 [SDNPHasChain, SDNPMayStore,
174 SDNPMayLoad, SDNPMemOperand]>;
175 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
176 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
178 def X86vastart_save_xmm_regs :
179 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
180 SDT_X86VASTART_SAVE_XMM_REGS,
181 [SDNPHasChain, SDNPVariadic]>;
183 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
184 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
186 def X86callseq_start :
187 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
188 [SDNPHasChain, SDNPOutGlue]>;
190 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
191 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
193 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
194 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
197 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
198 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
199 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
200 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
203 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
204 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
206 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
207 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
209 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
210 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
212 def X86tlsbaseaddr : SDNode<"X86ISD::TLSBASEADDR", SDT_X86TLSBASEADDR,
213 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
215 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
218 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
219 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
221 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
223 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
224 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
226 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
228 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
229 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
231 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
232 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
233 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
235 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
237 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
239 def X86andn_flag : SDNode<"X86ISD::ANDN", SDTBinaryArithWithFlags>;
241 def X86blsi_flag : SDNode<"X86ISD::BLSI", SDTUnaryArithWithFlags>;
242 def X86blsmsk_flag : SDNode<"X86ISD::BLSMSK", SDTUnaryArithWithFlags>;
243 def X86blsr_flag : SDNode<"X86ISD::BLSR", SDTUnaryArithWithFlags>;
245 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
247 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
248 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
250 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
253 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
254 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
256 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
257 [SDNPHasChain, SDNPOutGlue]>;
259 //===----------------------------------------------------------------------===//
260 // X86 Operand Definitions.
263 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
264 // the index operand of an address, to conform to x86 encoding restrictions.
265 def ptr_rc_nosp : PointerLikeRegClass<1>;
267 // *mem - Operand definitions for the funky X86 addressing mode operands.
269 def X86MemAsmOperand : AsmOperandClass {
270 let Name = "Mem"; let PredicateMethod = "isMem";
272 def X86Mem8AsmOperand : AsmOperandClass {
273 let Name = "Mem8"; let PredicateMethod = "isMem8";
275 def X86Mem16AsmOperand : AsmOperandClass {
276 let Name = "Mem16"; let PredicateMethod = "isMem16";
278 def X86Mem32AsmOperand : AsmOperandClass {
279 let Name = "Mem32"; let PredicateMethod = "isMem32";
281 def X86Mem64AsmOperand : AsmOperandClass {
282 let Name = "Mem64"; let PredicateMethod = "isMem64";
284 def X86Mem80AsmOperand : AsmOperandClass {
285 let Name = "Mem80"; let PredicateMethod = "isMem80";
287 def X86Mem128AsmOperand : AsmOperandClass {
288 let Name = "Mem128"; let PredicateMethod = "isMem128";
290 def X86Mem256AsmOperand : AsmOperandClass {
291 let Name = "Mem256"; let PredicateMethod = "isMem256";
294 def X86AbsMemAsmOperand : AsmOperandClass {
296 let SuperClasses = [X86MemAsmOperand];
298 class X86MemOperand<string printMethod> : Operand<iPTR> {
299 let PrintMethod = printMethod;
300 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
301 let ParserMatchClass = X86MemAsmOperand;
304 let OperandType = "OPERAND_MEMORY" in {
305 def opaque32mem : X86MemOperand<"printopaquemem">;
306 def opaque48mem : X86MemOperand<"printopaquemem">;
307 def opaque80mem : X86MemOperand<"printopaquemem">;
308 def opaque512mem : X86MemOperand<"printopaquemem">;
310 def i8mem : X86MemOperand<"printi8mem"> {
311 let ParserMatchClass = X86Mem8AsmOperand; }
312 def i16mem : X86MemOperand<"printi16mem"> {
313 let ParserMatchClass = X86Mem16AsmOperand; }
314 def i32mem : X86MemOperand<"printi32mem"> {
315 let ParserMatchClass = X86Mem32AsmOperand; }
316 def i64mem : X86MemOperand<"printi64mem"> {
317 let ParserMatchClass = X86Mem64AsmOperand; }
318 def i128mem : X86MemOperand<"printi128mem"> {
319 let ParserMatchClass = X86Mem128AsmOperand; }
320 def i256mem : X86MemOperand<"printi256mem"> {
321 let ParserMatchClass = X86Mem256AsmOperand; }
322 def f32mem : X86MemOperand<"printf32mem"> {
323 let ParserMatchClass = X86Mem32AsmOperand; }
324 def f64mem : X86MemOperand<"printf64mem"> {
325 let ParserMatchClass = X86Mem64AsmOperand; }
326 def f80mem : X86MemOperand<"printf80mem"> {
327 let ParserMatchClass = X86Mem80AsmOperand; }
328 def f128mem : X86MemOperand<"printf128mem"> {
329 let ParserMatchClass = X86Mem128AsmOperand; }
330 def f256mem : X86MemOperand<"printf256mem">{
331 let ParserMatchClass = X86Mem256AsmOperand; }
332 def v128mem : X86MemOperand<"printf128mem"> {
333 let MIOperandInfo = (ops ptr_rc, i8imm, VR128, i32imm, i8imm);
334 let ParserMatchClass = X86Mem128AsmOperand; }
335 def v256mem : X86MemOperand<"printf256mem"> {
336 let MIOperandInfo = (ops ptr_rc, i8imm, VR256, i32imm, i8imm);
337 let ParserMatchClass = X86Mem256AsmOperand; }
340 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
341 // plain GR64, so that it doesn't potentially require a REX prefix.
342 def i8mem_NOREX : Operand<i64> {
343 let PrintMethod = "printi8mem";
344 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
345 let ParserMatchClass = X86Mem8AsmOperand;
346 let OperandType = "OPERAND_MEMORY";
349 // GPRs available for tailcall.
350 // It represents GR32_TC, GR64_TC or GR64_TCW64.
351 def ptr_rc_tailcall : PointerLikeRegClass<2>;
353 // Special i32mem for addresses of load folding tail calls. These are not
354 // allowed to use callee-saved registers since they must be scheduled
355 // after callee-saved register are popped.
356 def i32mem_TC : Operand<i32> {
357 let PrintMethod = "printi32mem";
358 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
360 let ParserMatchClass = X86Mem32AsmOperand;
361 let OperandType = "OPERAND_MEMORY";
364 // Special i64mem for addresses of load folding tail calls. These are not
365 // allowed to use callee-saved registers since they must be scheduled
366 // after callee-saved register are popped.
367 def i64mem_TC : Operand<i64> {
368 let PrintMethod = "printi64mem";
369 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
370 ptr_rc_tailcall, i32imm, i8imm);
371 let ParserMatchClass = X86Mem64AsmOperand;
372 let OperandType = "OPERAND_MEMORY";
375 let OperandType = "OPERAND_PCREL",
376 ParserMatchClass = X86AbsMemAsmOperand,
377 PrintMethod = "print_pcrel_imm" in {
378 def i32imm_pcrel : Operand<i32>;
379 def i16imm_pcrel : Operand<i16>;
381 def offset8 : Operand<i64>;
382 def offset16 : Operand<i64>;
383 def offset32 : Operand<i64>;
384 def offset64 : Operand<i64>;
386 // Branch targets have OtherVT type and print as pc-relative values.
387 def brtarget : Operand<OtherVT>;
388 def brtarget8 : Operand<OtherVT>;
392 def SSECC : Operand<i8> {
393 let PrintMethod = "printSSECC";
394 let OperandType = "OPERAND_IMMEDIATE";
397 def AVXCC : Operand<i8> {
398 let PrintMethod = "printSSECC";
399 let OperandType = "OPERAND_IMMEDIATE";
402 class ImmSExtAsmOperandClass : AsmOperandClass {
403 let SuperClasses = [ImmAsmOperand];
404 let RenderMethod = "addImmOperands";
407 class ImmZExtAsmOperandClass : AsmOperandClass {
408 let SuperClasses = [ImmAsmOperand];
409 let RenderMethod = "addImmOperands";
412 // Sign-extended immediate classes. We don't need to define the full lattice
413 // here because there is no instruction with an ambiguity between ImmSExti64i32
416 // The strange ranges come from the fact that the assembler always works with
417 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
418 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
421 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
422 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
423 let Name = "ImmSExti64i32";
426 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
427 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
428 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
429 let Name = "ImmSExti16i8";
430 let SuperClasses = [ImmSExti64i32AsmOperand];
433 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
434 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
435 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
436 let Name = "ImmSExti32i8";
440 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
441 let Name = "ImmZExtu32u8";
446 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
447 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
448 let Name = "ImmSExti64i8";
449 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
450 ImmSExti64i32AsmOperand];
453 // A couple of more descriptive operand definitions.
454 // 16-bits but only 8 bits are significant.
455 def i16i8imm : Operand<i16> {
456 let ParserMatchClass = ImmSExti16i8AsmOperand;
457 let OperandType = "OPERAND_IMMEDIATE";
459 // 32-bits but only 8 bits are significant.
460 def i32i8imm : Operand<i32> {
461 let ParserMatchClass = ImmSExti32i8AsmOperand;
462 let OperandType = "OPERAND_IMMEDIATE";
464 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
465 def u32u8imm : Operand<i32> {
466 let ParserMatchClass = ImmZExtu32u8AsmOperand;
467 let OperandType = "OPERAND_IMMEDIATE";
470 // 64-bits but only 32 bits are significant.
471 def i64i32imm : Operand<i64> {
472 let ParserMatchClass = ImmSExti64i32AsmOperand;
473 let OperandType = "OPERAND_IMMEDIATE";
476 // 64-bits but only 32 bits are significant, and those bits are treated as being
478 def i64i32imm_pcrel : Operand<i64> {
479 let PrintMethod = "print_pcrel_imm";
480 let ParserMatchClass = X86AbsMemAsmOperand;
481 let OperandType = "OPERAND_PCREL";
484 // 64-bits but only 8 bits are significant.
485 def i64i8imm : Operand<i64> {
486 let ParserMatchClass = ImmSExti64i8AsmOperand;
487 let OperandType = "OPERAND_IMMEDIATE";
490 def lea64_32mem : Operand<i32> {
491 let PrintMethod = "printi32mem";
492 let AsmOperandLowerMethod = "lower_lea64_32mem";
493 let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
494 let ParserMatchClass = X86MemAsmOperand;
498 //===----------------------------------------------------------------------===//
499 // X86 Complex Pattern Definitions.
502 // Define X86 specific addressing mode.
503 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
504 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
505 [add, sub, mul, X86mul_imm, shl, or, frameindex],
507 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
508 [tglobaltlsaddr], []>;
510 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
511 [tglobaltlsaddr], []>;
513 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
514 [add, sub, mul, X86mul_imm, shl, or, frameindex,
517 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
518 [tglobaltlsaddr], []>;
520 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
521 [tglobaltlsaddr], []>;
523 //===----------------------------------------------------------------------===//
524 // X86 Instruction Predicate Definitions.
525 def HasCMov : Predicate<"Subtarget->hasCMov()">;
526 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
528 def HasMMX : Predicate<"Subtarget->hasMMX()">;
529 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
530 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
531 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
532 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
533 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
534 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
535 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
536 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
537 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
538 def HasAVX : Predicate<"Subtarget->hasAVX()">;
539 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
541 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
542 def HasAES : Predicate<"Subtarget->hasAES()">;
543 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
544 def HasFMA : Predicate<"Subtarget->hasFMA()">;
545 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
546 def HasXOP : Predicate<"Subtarget->hasXOP()">;
547 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
548 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
549 def HasF16C : Predicate<"Subtarget->hasF16C()">;
550 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
551 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
552 def HasBMI : Predicate<"Subtarget->hasBMI()">;
553 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
554 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
555 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
556 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
557 def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
558 AssemblerPredicate<"!Mode64Bit">;
559 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
560 AssemblerPredicate<"Mode64Bit">;
561 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
562 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
563 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
564 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
565 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
566 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
567 "TM.getCodeModel() != CodeModel::Kernel">;
568 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
569 "TM.getCodeModel() == CodeModel::Kernel">;
570 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
571 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
572 def OptForSize : Predicate<"OptForSize">;
573 def OptForSpeed : Predicate<"!OptForSize">;
574 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
575 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
577 //===----------------------------------------------------------------------===//
578 // X86 Instruction Format Definitions.
581 include "X86InstrFormats.td"
583 //===----------------------------------------------------------------------===//
584 // Pattern fragments.
587 // X86 specific condition code. These correspond to CondCode in
588 // X86InstrInfo.h. They must be kept in synch.
589 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
590 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
591 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
592 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
593 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
594 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
595 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
596 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
597 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
598 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
599 def X86_COND_NO : PatLeaf<(i8 10)>;
600 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
601 def X86_COND_NS : PatLeaf<(i8 12)>;
602 def X86_COND_O : PatLeaf<(i8 13)>;
603 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
604 def X86_COND_S : PatLeaf<(i8 15)>;
606 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
607 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
608 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
609 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
612 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
615 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
617 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
619 def i64immZExt32SExt8 : ImmLeaf<i64, [{
620 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
623 // Helper fragments for loads.
624 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
625 // known to be 32-bit aligned or better. Ditto for i8 to i16.
626 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
627 LoadSDNode *LD = cast<LoadSDNode>(N);
628 ISD::LoadExtType ExtType = LD->getExtensionType();
629 if (ExtType == ISD::NON_EXTLOAD)
631 if (ExtType == ISD::EXTLOAD)
632 return LD->getAlignment() >= 2 && !LD->isVolatile();
636 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
637 LoadSDNode *LD = cast<LoadSDNode>(N);
638 ISD::LoadExtType ExtType = LD->getExtensionType();
639 if (ExtType == ISD::EXTLOAD)
640 return LD->getAlignment() >= 2 && !LD->isVolatile();
644 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
645 LoadSDNode *LD = cast<LoadSDNode>(N);
646 ISD::LoadExtType ExtType = LD->getExtensionType();
647 if (ExtType == ISD::NON_EXTLOAD)
649 if (ExtType == ISD::EXTLOAD)
650 return LD->getAlignment() >= 4 && !LD->isVolatile();
654 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
655 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
656 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
657 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
658 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
660 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
661 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
662 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
663 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
664 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
665 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
667 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
668 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
669 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
670 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
671 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
672 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
673 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
674 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
675 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
676 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
678 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
679 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
680 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
681 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
682 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
683 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
684 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
685 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
686 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
687 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
690 // An 'and' node with a single use.
691 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
692 return N->hasOneUse();
694 // An 'srl' node with a single use.
695 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
696 return N->hasOneUse();
698 // An 'trunc' node with a single use.
699 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
700 return N->hasOneUse();
703 //===----------------------------------------------------------------------===//
708 let neverHasSideEffects = 1 in {
709 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
710 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
711 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize;
712 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
713 "nop{l}\t$zero", [], IIC_NOP>, TB;
717 // Constructing a stack frame.
718 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
719 "enter\t$len, $lvl", [], IIC_ENTER>;
721 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
722 def LEAVE : I<0xC9, RawFrm,
723 (outs), (ins), "leave", [], IIC_LEAVE>,
724 Requires<[In32BitMode]>;
726 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
727 def LEAVE64 : I<0xC9, RawFrm,
728 (outs), (ins), "leave", [], IIC_LEAVE>,
729 Requires<[In64BitMode]>;
731 //===----------------------------------------------------------------------===//
732 // Miscellaneous Instructions.
735 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
737 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
738 IIC_POP_REG16>, OpSize;
739 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
741 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
742 IIC_POP_REG>, OpSize;
743 def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", [],
744 IIC_POP_MEM>, OpSize;
745 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
747 def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", [],
750 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>, OpSize;
751 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
752 Requires<[In32BitMode]>;
755 let mayStore = 1 in {
756 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
757 IIC_PUSH_REG>, OpSize;
758 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
760 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
761 IIC_PUSH_REG>, OpSize;
762 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
765 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
767 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
770 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
771 "push{l}\t$imm", [], IIC_PUSH_IMM>;
772 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
773 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize;
774 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
775 "push{l}\t$imm", [], IIC_PUSH_IMM>;
777 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
779 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
780 Requires<[In32BitMode]>;
785 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
787 def POP64r : I<0x58, AddRegFrm,
788 (outs GR64:$reg), (ins), "pop{q}\t$reg", [], IIC_POP_REG>;
789 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
791 def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", [],
794 let mayStore = 1 in {
795 def PUSH64r : I<0x50, AddRegFrm,
796 (outs), (ins GR64:$reg), "push{q}\t$reg", [], IIC_PUSH_REG>;
797 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
799 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
804 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
805 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
806 "push{q}\t$imm", [], IIC_PUSH_IMM>;
807 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
808 "push{q}\t$imm", [], IIC_PUSH_IMM>;
809 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
810 "push{q}\t$imm", [], IIC_PUSH_IMM>;
813 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
814 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
815 Requires<[In64BitMode]>;
816 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
817 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
818 Requires<[In64BitMode]>;
822 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
823 mayLoad=1, neverHasSideEffects=1 in {
824 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", [], IIC_POP_A>,
825 Requires<[In32BitMode]>;
827 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
828 mayStore=1, neverHasSideEffects=1 in {
829 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", [], IIC_PUSH_A>,
830 Requires<[In32BitMode]>;
833 let Constraints = "$src = $dst" in { // GR32 = bswap GR32
834 def BSWAP32r : I<0xC8, AddRegFrm,
835 (outs GR32:$dst), (ins GR32:$src),
837 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, TB;
839 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
841 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
842 } // Constraints = "$src = $dst"
844 // Bit scan instructions.
845 let Defs = [EFLAGS] in {
846 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
847 "bsf{w}\t{$src, $dst|$dst, $src}",
848 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
849 IIC_BSF>, TB, OpSize;
850 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
851 "bsf{w}\t{$src, $dst|$dst, $src}",
852 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
853 IIC_BSF>, TB, OpSize;
854 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
855 "bsf{l}\t{$src, $dst|$dst, $src}",
856 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))], IIC_BSF>, TB;
857 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
858 "bsf{l}\t{$src, $dst|$dst, $src}",
859 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
861 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
862 "bsf{q}\t{$src, $dst|$dst, $src}",
863 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
865 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
866 "bsf{q}\t{$src, $dst|$dst, $src}",
867 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
870 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
871 "bsr{w}\t{$src, $dst|$dst, $src}",
872 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))], IIC_BSR>,
874 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
875 "bsr{w}\t{$src, $dst|$dst, $src}",
876 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
879 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
880 "bsr{l}\t{$src, $dst|$dst, $src}",
881 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))], IIC_BSR>, TB;
882 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
883 "bsr{l}\t{$src, $dst|$dst, $src}",
884 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
886 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
887 "bsr{q}\t{$src, $dst|$dst, $src}",
888 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))], IIC_BSR>, TB;
889 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
890 "bsr{q}\t{$src, $dst|$dst, $src}",
891 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
896 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
897 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
898 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "movsb", [], IIC_MOVS>;
899 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "movsw", [], IIC_MOVS>, OpSize;
900 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "movs{l|d}", [], IIC_MOVS>;
901 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", [], IIC_MOVS>;
904 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
905 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
906 def STOSB : I<0xAA, RawFrm, (outs), (ins), "stosb", [], IIC_STOS>;
907 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
908 def STOSW : I<0xAB, RawFrm, (outs), (ins), "stosw", [], IIC_STOS>, OpSize;
909 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
910 def STOSD : I<0xAB, RawFrm, (outs), (ins), "stos{l|d}", [], IIC_STOS>;
911 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
912 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", [], IIC_STOS>;
914 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scasb", [], IIC_SCAS>;
915 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scasw", [], IIC_SCAS>, OpSize;
916 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l|d}", [], IIC_SCAS>;
917 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", [], IIC_SCAS>;
919 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmpsb", [], IIC_CMPS>;
920 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmpsw", [], IIC_CMPS>, OpSize;
921 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l|d}", [], IIC_CMPS>;
922 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", [], IIC_CMPS>;
925 //===----------------------------------------------------------------------===//
926 // Move Instructions.
929 let neverHasSideEffects = 1 in {
930 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
931 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
932 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
933 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
934 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
935 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
936 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
937 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
939 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
940 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
941 "mov{b}\t{$src, $dst|$dst, $src}",
942 [(set GR8:$dst, imm:$src)], IIC_MOV>;
943 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
944 "mov{w}\t{$src, $dst|$dst, $src}",
945 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize;
946 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
947 "mov{l}\t{$src, $dst|$dst, $src}",
948 [(set GR32:$dst, imm:$src)], IIC_MOV>;
949 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
950 "movabs{q}\t{$src, $dst|$dst, $src}",
951 [(set GR64:$dst, imm:$src)], IIC_MOV>;
952 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
953 "mov{q}\t{$src, $dst|$dst, $src}",
954 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
957 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
958 "mov{b}\t{$src, $dst|$dst, $src}",
959 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
960 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
961 "mov{w}\t{$src, $dst|$dst, $src}",
962 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize;
963 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
964 "mov{l}\t{$src, $dst|$dst, $src}",
965 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>;
966 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
967 "mov{q}\t{$src, $dst|$dst, $src}",
968 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
970 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
971 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
972 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
973 "mov{b}\t{$src, %al|AL, $src}", [], IIC_MOV_MEM>,
974 Requires<[In32BitMode]>;
975 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
976 "mov{w}\t{$src, %ax|AL, $src}", [], IIC_MOV_MEM>, OpSize,
977 Requires<[In32BitMode]>;
978 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
979 "mov{l}\t{$src, %eax|EAX, $src}", [], IIC_MOV_MEM>,
980 Requires<[In32BitMode]>;
981 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
982 "mov{b}\t{%al, $dst|$dst, AL}", [], IIC_MOV_MEM>,
983 Requires<[In32BitMode]>;
984 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
985 "mov{w}\t{%ax, $dst|$dst, AL}", [], IIC_MOV_MEM>, OpSize,
986 Requires<[In32BitMode]>;
987 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
988 "mov{l}\t{%eax, $dst|$dst, EAX}", [], IIC_MOV_MEM>,
989 Requires<[In32BitMode]>;
991 // FIXME: These definitions are utterly broken
992 // Just leave them commented out for now because they're useless outside
993 // of the large code model, and most compilers won't generate the instructions
996 def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
997 "mov{q}\t{$src, %rax|RAX, $src}", []>;
998 def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
999 "mov{q}\t{$src, %rax|RAX, $src}", []>;
1000 def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
1001 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
1002 def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
1003 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
1007 let isCodeGenOnly = 1 in {
1008 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1009 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1010 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1011 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
1012 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1013 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1014 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1015 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1018 let canFoldAsLoad = 1, isReMaterializable = 1 in {
1019 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1020 "mov{b}\t{$src, $dst|$dst, $src}",
1021 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1022 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1023 "mov{w}\t{$src, $dst|$dst, $src}",
1024 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize;
1025 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1026 "mov{l}\t{$src, $dst|$dst, $src}",
1027 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>;
1028 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1029 "mov{q}\t{$src, $dst|$dst, $src}",
1030 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1033 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1034 "mov{b}\t{$src, $dst|$dst, $src}",
1035 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1036 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1037 "mov{w}\t{$src, $dst|$dst, $src}",
1038 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize;
1039 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1040 "mov{l}\t{$src, $dst|$dst, $src}",
1041 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>;
1042 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1043 "mov{q}\t{$src, $dst|$dst, $src}",
1044 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1046 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1047 // that they can be used for copying and storing h registers, which can't be
1048 // encoded when a REX prefix is present.
1049 let isCodeGenOnly = 1 in {
1050 let neverHasSideEffects = 1 in
1051 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1052 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1053 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>;
1055 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1056 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1057 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1059 let mayLoad = 1, neverHasSideEffects = 1,
1060 canFoldAsLoad = 1, isReMaterializable = 1 in
1061 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1062 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1063 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1068 // Condition code ops, incl. set if equal/not equal/...
1069 let Defs = [EFLAGS], Uses = [AH] in
1070 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1071 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1072 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
1073 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1074 IIC_AHF>; // AH = flags
1077 //===----------------------------------------------------------------------===//
1078 // Bit tests instructions: BT, BTS, BTR, BTC.
1080 let Defs = [EFLAGS] in {
1081 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1082 "bt{w}\t{$src2, $src1|$src1, $src2}",
1083 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1085 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1086 "bt{l}\t{$src2, $src1|$src1, $src2}",
1087 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>, TB;
1088 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1089 "bt{q}\t{$src2, $src1|$src1, $src2}",
1090 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1092 // Unlike with the register+register form, the memory+register form of the
1093 // bt instruction does not ignore the high bits of the index. From ISel's
1094 // perspective, this is pretty bizarre. Make these instructions disassembly
1097 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1098 "bt{w}\t{$src2, $src1|$src1, $src2}",
1099 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1100 // (implicit EFLAGS)]
1102 >, OpSize, TB, Requires<[FastBTMem]>;
1103 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1104 "bt{l}\t{$src2, $src1|$src1, $src2}",
1105 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1106 // (implicit EFLAGS)]
1108 >, TB, Requires<[FastBTMem]>;
1109 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1110 "bt{q}\t{$src2, $src1|$src1, $src2}",
1111 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1112 // (implicit EFLAGS)]
1116 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1117 "bt{w}\t{$src2, $src1|$src1, $src2}",
1118 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1119 IIC_BT_RI>, OpSize, TB;
1120 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1121 "bt{l}\t{$src2, $src1|$src1, $src2}",
1122 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1124 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1125 "bt{q}\t{$src2, $src1|$src1, $src2}",
1126 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1129 // Note that these instructions don't need FastBTMem because that
1130 // only applies when the other operand is in a register. When it's
1131 // an immediate, bt is still fast.
1132 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1133 "bt{w}\t{$src2, $src1|$src1, $src2}",
1134 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1135 ], IIC_BT_MI>, OpSize, TB;
1136 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1137 "bt{l}\t{$src2, $src1|$src1, $src2}",
1138 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1140 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1141 "bt{q}\t{$src2, $src1|$src1, $src2}",
1142 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1143 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1146 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1147 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1149 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1150 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1151 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1152 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1153 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1154 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1156 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1157 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1158 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1159 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1160 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1161 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1163 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1164 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1165 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1166 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1167 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1168 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1170 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1171 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1172 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1173 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1175 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1176 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1178 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1179 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1180 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1181 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1182 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1183 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1185 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1186 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1187 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1188 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1189 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1190 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1192 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1193 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1194 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1195 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1196 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1197 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1199 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1200 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1201 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1202 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1204 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1205 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1207 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1208 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1209 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1210 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1211 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1212 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1214 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1215 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1216 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1217 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1218 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1219 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1221 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1222 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1223 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1224 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1225 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1226 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1228 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1229 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1230 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1231 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1232 } // Defs = [EFLAGS]
1235 //===----------------------------------------------------------------------===//
1240 // Atomic swap. These are just normal xchg instructions. But since a memory
1241 // operand is referenced, the atomicity is ensured.
1242 let Constraints = "$val = $dst" in {
1243 def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
1244 "xchg{b}\t{$val, $ptr|$ptr, $val}",
1245 [(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))],
1247 def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
1248 "xchg{w}\t{$val, $ptr|$ptr, $val}",
1249 [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))],
1252 def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
1253 "xchg{l}\t{$val, $ptr|$ptr, $val}",
1254 [(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))],
1256 def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
1257 "xchg{q}\t{$val, $ptr|$ptr, $val}",
1258 [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))],
1261 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1262 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1263 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1264 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>, OpSize;
1265 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1266 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1267 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1268 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1271 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1272 "xchg{w}\t{$src, %ax|AX, $src}", [], IIC_XCHG_REG>, OpSize;
1273 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1274 "xchg{l}\t{$src, %eax|EAX, $src}", [], IIC_XCHG_REG>,
1275 Requires<[In32BitMode]>;
1276 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1277 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1278 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1279 "xchg{l}\t{$src, %eax|EAX, $src}", [], IIC_XCHG_REG>,
1280 Requires<[In64BitMode]>;
1281 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1282 "xchg{q}\t{$src, %rax|RAX, $src}", [], IIC_XCHG_REG>;
1286 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1287 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1288 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1289 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1291 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1292 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1293 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1294 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1296 let mayLoad = 1, mayStore = 1 in {
1297 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1298 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1299 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1300 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1302 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1303 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1304 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1305 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1309 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1310 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1311 IIC_CMPXCHG_REG8>, TB;
1312 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1313 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1314 IIC_CMPXCHG_REG>, TB, OpSize;
1315 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1316 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1317 IIC_CMPXCHG_REG>, TB;
1318 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1319 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1320 IIC_CMPXCHG_REG>, TB;
1322 let mayLoad = 1, mayStore = 1 in {
1323 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1324 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1325 IIC_CMPXCHG_MEM8>, TB;
1326 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1327 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1328 IIC_CMPXCHG_MEM>, TB, OpSize;
1329 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1330 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1331 IIC_CMPXCHG_MEM>, TB;
1332 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1333 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1334 IIC_CMPXCHG_MEM>, TB;
1337 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1338 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1339 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1341 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1342 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1343 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1344 TB, Requires<[HasCmpxchg16b]>;
1348 // Lock instruction prefix
1349 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1351 // Rex64 instruction prefix
1352 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1354 // Data16 instruction prefix
1355 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1357 // Repeat string operation instruction prefixes
1358 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1359 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1360 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1361 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1362 // Repeat while not equal (used with CMPS and SCAS)
1363 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1367 // String manipulation instructions
1368 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", [], IIC_LODS>;
1369 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", [], IIC_LODS>, OpSize;
1370 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", [], IIC_LODS>;
1371 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", [], IIC_LODS>;
1373 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", [], IIC_OUTS>;
1374 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", [], IIC_OUTS>, OpSize;
1375 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", [], IIC_OUTS>;
1378 // Flag instructions
1379 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1380 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1381 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1382 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1383 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1384 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1385 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1387 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1389 // Table lookup instructions
1390 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>;
1392 // ASCII Adjust After Addition
1393 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1394 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1395 Requires<[In32BitMode]>;
1397 // ASCII Adjust AX Before Division
1398 // sets AL, AH and EFLAGS and uses AL and AH
1399 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1400 "aad\t$src", [], IIC_AAD>, Requires<[In32BitMode]>;
1402 // ASCII Adjust AX After Multiply
1403 // sets AL, AH and EFLAGS and uses AL
1404 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1405 "aam\t$src", [], IIC_AAM>, Requires<[In32BitMode]>;
1407 // ASCII Adjust AL After Subtraction - sets
1408 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1409 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1410 Requires<[In32BitMode]>;
1412 // Decimal Adjust AL after Addition
1413 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1414 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1415 Requires<[In32BitMode]>;
1417 // Decimal Adjust AL after Subtraction
1418 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1419 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1420 Requires<[In32BitMode]>;
1422 // Check Array Index Against Bounds
1423 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1424 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize,
1425 Requires<[In32BitMode]>;
1426 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1427 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>,
1428 Requires<[In32BitMode]>;
1430 // Adjust RPL Field of Segment Selector
1431 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
1432 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1433 Requires<[In32BitMode]>;
1434 def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
1435 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1436 Requires<[In32BitMode]>;
1438 //===----------------------------------------------------------------------===//
1439 // MOVBE Instructions
1441 let Predicates = [HasMOVBE] in {
1442 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1443 "movbe{w}\t{$src, $dst|$dst, $src}",
1444 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1446 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1447 "movbe{l}\t{$src, $dst|$dst, $src}",
1448 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1450 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1451 "movbe{q}\t{$src, $dst|$dst, $src}",
1452 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1454 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1455 "movbe{w}\t{$src, $dst|$dst, $src}",
1456 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1458 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1459 "movbe{l}\t{$src, $dst|$dst, $src}",
1460 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1462 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1463 "movbe{q}\t{$src, $dst|$dst, $src}",
1464 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1468 //===----------------------------------------------------------------------===//
1469 // RDRAND Instruction
1471 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1472 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1474 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize, TB;
1475 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1477 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, TB;
1478 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1480 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1483 //===----------------------------------------------------------------------===//
1484 // LZCNT Instruction
1486 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1487 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1488 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1489 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1491 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1492 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1493 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1494 (implicit EFLAGS)]>, XS, OpSize;
1496 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1497 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1498 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS;
1499 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1500 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1501 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1502 (implicit EFLAGS)]>, XS;
1504 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1505 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1506 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1508 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1509 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1510 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1511 (implicit EFLAGS)]>, XS;
1514 //===----------------------------------------------------------------------===//
1517 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1518 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1519 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1520 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
1522 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1523 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1524 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
1525 (implicit EFLAGS)]>, XS, OpSize;
1527 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1528 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1529 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS;
1530 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1531 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1532 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
1533 (implicit EFLAGS)]>, XS;
1535 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1536 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1537 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
1539 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1540 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1541 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
1542 (implicit EFLAGS)]>, XS;
1545 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
1546 RegisterClass RC, X86MemOperand x86memop, SDNode OpNode,
1548 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
1549 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1550 [(set RC:$dst, EFLAGS, (OpNode RC:$src))]>, T8, VEX_4V;
1551 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
1552 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1553 [(set RC:$dst, EFLAGS, (OpNode (ld_frag addr:$src)))]>,
1557 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1558 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem,
1559 X86blsr_flag, loadi32>;
1560 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem,
1561 X86blsr_flag, loadi64>, VEX_W;
1562 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem,
1563 X86blsmsk_flag, loadi32>;
1564 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem,
1565 X86blsmsk_flag, loadi64>, VEX_W;
1566 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem,
1567 X86blsi_flag, loadi32>;
1568 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem,
1569 X86blsi_flag, loadi64>, VEX_W;
1572 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
1573 X86MemOperand x86memop, Intrinsic Int,
1575 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1576 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1577 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
1579 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
1580 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1581 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
1582 (implicit EFLAGS)]>, T8, VEX_4VOp3;
1585 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1586 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
1587 int_x86_bmi_bextr_32, loadi32>;
1588 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
1589 int_x86_bmi_bextr_64, loadi64>, VEX_W;
1592 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
1593 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
1594 int_x86_bmi_bzhi_32, loadi32>;
1595 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
1596 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
1599 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
1600 X86MemOperand x86memop, Intrinsic Int,
1602 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1603 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1604 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
1606 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
1607 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1608 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
1611 let Predicates = [HasBMI2] in {
1612 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
1613 int_x86_bmi_pdep_32, loadi32>, T8XD;
1614 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
1615 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
1616 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
1617 int_x86_bmi_pext_32, loadi32>, T8XS;
1618 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
1619 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
1622 //===----------------------------------------------------------------------===//
1624 //===----------------------------------------------------------------------===//
1626 include "X86InstrArithmetic.td"
1627 include "X86InstrCMovSetCC.td"
1628 include "X86InstrExtension.td"
1629 include "X86InstrControl.td"
1630 include "X86InstrShiftRotate.td"
1632 // X87 Floating Point Stack.
1633 include "X86InstrFPStack.td"
1635 // SIMD support (SSE, MMX and AVX)
1636 include "X86InstrFragmentsSIMD.td"
1638 // FMA - Fused Multiply-Add support (requires FMA)
1639 include "X86InstrFMA.td"
1642 include "X86InstrXOP.td"
1644 // SSE, MMX and 3DNow! vector support.
1645 include "X86InstrSSE.td"
1646 include "X86InstrMMX.td"
1647 include "X86Instr3DNow.td"
1649 include "X86InstrVMX.td"
1650 include "X86InstrSVM.td"
1652 // System instructions.
1653 include "X86InstrSystem.td"
1655 // Compiler Pseudo Instructions and Pat Patterns
1656 include "X86InstrCompiler.td"
1658 //===----------------------------------------------------------------------===//
1659 // Assembler Mnemonic Aliases
1660 //===----------------------------------------------------------------------===//
1662 def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
1663 def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
1665 def : MnemonicAlias<"cbw", "cbtw">;
1666 def : MnemonicAlias<"cwde", "cwtl">;
1667 def : MnemonicAlias<"cwd", "cwtd">;
1668 def : MnemonicAlias<"cdq", "cltd">;
1669 def : MnemonicAlias<"cdqe", "cltq">;
1670 def : MnemonicAlias<"cqo", "cqto">;
1672 // lret maps to lretl, it is not ambiguous with lretq.
1673 def : MnemonicAlias<"lret", "lretl">;
1675 def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
1676 def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
1678 def : MnemonicAlias<"loopz", "loope">;
1679 def : MnemonicAlias<"loopnz", "loopne">;
1681 def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
1682 def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
1683 def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
1684 def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
1685 def : MnemonicAlias<"popfd", "popfl">;
1687 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
1688 // all modes. However: "push (addr)" and "push $42" should default to
1689 // pushl/pushq depending on the current mode. Similar for "pop %bx"
1690 def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
1691 def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
1692 def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
1693 def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
1694 def : MnemonicAlias<"pushfd", "pushfl">;
1696 def : MnemonicAlias<"repe", "rep">;
1697 def : MnemonicAlias<"repz", "rep">;
1698 def : MnemonicAlias<"repnz", "repne">;
1700 def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
1701 def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
1703 def : MnemonicAlias<"salb", "shlb">;
1704 def : MnemonicAlias<"salw", "shlw">;
1705 def : MnemonicAlias<"sall", "shll">;
1706 def : MnemonicAlias<"salq", "shlq">;
1708 def : MnemonicAlias<"smovb", "movsb">;
1709 def : MnemonicAlias<"smovw", "movsw">;
1710 def : MnemonicAlias<"smovl", "movsl">;
1711 def : MnemonicAlias<"smovq", "movsq">;
1713 def : MnemonicAlias<"ud2a", "ud2">;
1714 def : MnemonicAlias<"verrw", "verr">;
1716 // System instruction aliases.
1717 def : MnemonicAlias<"iret", "iretl">;
1718 def : MnemonicAlias<"sysret", "sysretl">;
1719 def : MnemonicAlias<"sysexit", "sysexitl">;
1721 def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
1722 def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
1723 def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
1724 def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
1725 def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
1726 def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
1727 def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
1728 def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
1731 // Floating point stack aliases.
1732 def : MnemonicAlias<"fcmovz", "fcmove">;
1733 def : MnemonicAlias<"fcmova", "fcmovnbe">;
1734 def : MnemonicAlias<"fcmovnae", "fcmovb">;
1735 def : MnemonicAlias<"fcmovna", "fcmovbe">;
1736 def : MnemonicAlias<"fcmovae", "fcmovnb">;
1737 def : MnemonicAlias<"fcomip", "fcompi">;
1738 def : MnemonicAlias<"fildq", "fildll">;
1739 def : MnemonicAlias<"fistpq", "fistpll">;
1740 def : MnemonicAlias<"fisttpq", "fisttpll">;
1741 def : MnemonicAlias<"fldcww", "fldcw">;
1742 def : MnemonicAlias<"fnstcww", "fnstcw">;
1743 def : MnemonicAlias<"fnstsww", "fnstsw">;
1744 def : MnemonicAlias<"fucomip", "fucompi">;
1745 def : MnemonicAlias<"fwait", "wait">;
1748 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
1749 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
1750 !strconcat(Prefix, NewCond, Suffix)>;
1752 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
1753 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
1754 /// example "setz" -> "sete".
1755 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
1756 def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
1757 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
1758 def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
1759 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
1760 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
1761 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
1762 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
1763 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
1764 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
1765 def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
1767 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
1768 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
1769 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
1770 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
1773 // Aliases for set<CC>
1774 defm : IntegerCondCodeMnemonicAlias<"set", "">;
1775 // Aliases for j<CC>
1776 defm : IntegerCondCodeMnemonicAlias<"j", "">;
1777 // Aliases for cmov<CC>{w,l,q}
1778 defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
1779 defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
1780 defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
1783 //===----------------------------------------------------------------------===//
1784 // Assembler Instruction Aliases
1785 //===----------------------------------------------------------------------===//
1787 // aad/aam default to base 10 if no operand is specified.
1788 def : InstAlias<"aad", (AAD8i8 10)>;
1789 def : InstAlias<"aam", (AAM8i8 10)>;
1791 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
1792 def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
1795 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
1796 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
1797 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
1798 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
1800 // div and idiv aliases for explicit A register.
1801 def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
1802 def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
1803 def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
1804 def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
1805 def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
1806 def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
1807 def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
1808 def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
1809 def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
1810 def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
1811 def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
1812 def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
1813 def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
1814 def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
1815 def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
1816 def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
1820 // Various unary fpstack operations default to operating on on ST1.
1821 // For example, "fxch" -> "fxch %st(1)"
1822 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
1823 def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
1824 def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
1825 def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
1826 def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
1827 def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
1828 def : InstAlias<"fxch", (XCH_F ST1)>;
1829 def : InstAlias<"fcomi", (COM_FIr ST1)>;
1830 def : InstAlias<"fcompi", (COM_FIPr ST1)>;
1831 def : InstAlias<"fucom", (UCOM_Fr ST1)>;
1832 def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
1833 def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
1834 def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
1836 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
1837 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
1838 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
1840 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
1841 def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"),
1842 (Inst RST:$op), EmitAlias>;
1843 def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"),
1844 (Inst ST0), EmitAlias>;
1847 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
1848 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
1849 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
1850 defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
1851 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
1852 defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
1853 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
1854 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
1855 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
1856 defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
1857 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
1858 defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
1859 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
1860 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
1861 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
1862 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
1865 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
1866 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
1867 // solely because gas supports it.
1868 def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op), 0>;
1869 def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
1870 def : InstAlias<"fsubp %st(0), $op", (SUBR_FPrST0 RST:$op)>;
1871 def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
1872 def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
1873 def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
1875 // We accept "fnstsw %eax" even though it only writes %ax.
1876 def : InstAlias<"fnstsw %eax", (FNSTSW16r)>;
1877 def : InstAlias<"fnstsw %al" , (FNSTSW16r)>;
1878 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
1880 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
1881 // this is compatible with what GAS does.
1882 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1883 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1884 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
1885 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
1887 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
1888 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
1889 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
1890 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
1891 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
1892 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
1893 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
1895 // inb %dx -> inb %al, %dx
1896 def : InstAlias<"inb %dx", (IN8rr)>;
1897 def : InstAlias<"inw %dx", (IN16rr)>;
1898 def : InstAlias<"inl %dx", (IN32rr)>;
1899 def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
1900 def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
1901 def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
1904 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
1905 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1906 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1907 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
1908 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
1909 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1910 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1912 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
1913 // the move. All segment/mem forms are equivalent, this has the shortest
1915 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
1916 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
1918 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
1919 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
1921 // Match 'movq GR64, MMX' as an alias for movd.
1922 def : InstAlias<"movq $src, $dst",
1923 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
1924 def : InstAlias<"movq $src, $dst",
1925 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
1927 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
1928 // alias for movsl. (as in rep; movsd)
1929 def : InstAlias<"movsd", (MOVSD)>;
1932 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
1933 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
1934 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
1935 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
1936 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
1937 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
1938 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
1941 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
1942 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
1943 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
1944 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
1945 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
1946 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
1947 // Note: No GR32->GR64 movzx form.
1949 // outb %dx -> outb %al, %dx
1950 def : InstAlias<"outb %dx", (OUT8rr)>;
1951 def : InstAlias<"outw %dx", (OUT16rr)>;
1952 def : InstAlias<"outl %dx", (OUT32rr)>;
1953 def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
1954 def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
1955 def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
1957 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
1958 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
1959 // errors, since its encoding is the most compact.
1960 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
1962 // shld/shrd op,op -> shld op, op, CL
1963 def : InstAlias<"shldw $r2, $r1", (SHLD16rrCL GR16:$r1, GR16:$r2)>;
1964 def : InstAlias<"shldl $r2, $r1", (SHLD32rrCL GR32:$r1, GR32:$r2)>;
1965 def : InstAlias<"shldq $r2, $r1", (SHLD64rrCL GR64:$r1, GR64:$r2)>;
1966 def : InstAlias<"shrdw $r2, $r1", (SHRD16rrCL GR16:$r1, GR16:$r2)>;
1967 def : InstAlias<"shrdl $r2, $r1", (SHRD32rrCL GR32:$r1, GR32:$r2)>;
1968 def : InstAlias<"shrdq $r2, $r1", (SHRD64rrCL GR64:$r1, GR64:$r2)>;
1970 def : InstAlias<"shldw $reg, $mem", (SHLD16mrCL i16mem:$mem, GR16:$reg)>;
1971 def : InstAlias<"shldl $reg, $mem", (SHLD32mrCL i32mem:$mem, GR32:$reg)>;
1972 def : InstAlias<"shldq $reg, $mem", (SHLD64mrCL i64mem:$mem, GR64:$reg)>;
1973 def : InstAlias<"shrdw $reg, $mem", (SHRD16mrCL i16mem:$mem, GR16:$reg)>;
1974 def : InstAlias<"shrdl $reg, $mem", (SHRD32mrCL i32mem:$mem, GR32:$reg)>;
1975 def : InstAlias<"shrdq $reg, $mem", (SHRD64mrCL i64mem:$mem, GR64:$reg)>;
1977 /* FIXME: This is disabled because the asm matcher is currently incapable of
1978 * matching a fixed immediate like $1.
1979 // "shl X, $1" is an alias for "shl X".
1980 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
1981 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1982 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
1983 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1984 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
1985 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1986 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
1987 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1988 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
1989 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1990 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
1991 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1992 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
1993 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1994 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
1995 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1996 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
1999 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2000 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2001 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2002 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2005 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2006 def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
2007 def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
2008 def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
2009 def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
2011 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2012 def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
2013 def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
2014 def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
2015 def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;
2017 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2018 def : InstAlias<"xchgw %ax, $src", (XCHG16ar GR16:$src)>;
2019 def : InstAlias<"xchgl %eax, $src", (XCHG32ar GR32:$src)>, Requires<[In32BitMode]>;
2020 def : InstAlias<"xchgl %eax, $src", (XCHG32ar64 GR32_NOAX:$src)>, Requires<[In64BitMode]>;
2021 def : InstAlias<"xchgq %rax, $src", (XCHG64ar GR64:$src)>;