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 SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
70 def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
72 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
73 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
74 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
76 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
77 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
80 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
82 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
86 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
92 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
94 def SDTX86Void : SDTypeProfile<0, 0, []>;
96 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
98 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
100 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
102 def SDT_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
104 def SDT_X86WIN_FTOL : SDTypeProfile<0, 1, [SDTCisFP<0>]>;
106 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
108 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
110 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
112 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
114 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
116 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
118 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
122 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
123 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
124 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
125 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
127 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
128 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
130 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
131 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
133 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
134 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
136 def X86sahf : SDNode<"X86ISD::SAHF", SDTX86sahf>;
138 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
139 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
140 SDNPMayLoad, SDNPMemOperand]>;
141 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
142 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
143 SDNPMayLoad, SDNPMemOperand]>;
144 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
145 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
146 SDNPMayLoad, SDNPMemOperand]>;
148 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
149 [SDNPHasChain, SDNPMayStore,
150 SDNPMayLoad, SDNPMemOperand]>;
151 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
152 [SDNPHasChain, SDNPMayStore,
153 SDNPMayLoad, SDNPMemOperand]>;
154 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
155 [SDNPHasChain, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
157 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
158 [SDNPHasChain, SDNPMayStore,
159 SDNPMayLoad, SDNPMemOperand]>;
160 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
161 [SDNPHasChain, SDNPMayStore,
162 SDNPMayLoad, SDNPMemOperand]>;
163 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
164 [SDNPHasChain, SDNPMayStore,
165 SDNPMayLoad, SDNPMemOperand]>;
166 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
167 [SDNPHasChain, SDNPMayStore,
168 SDNPMayLoad, SDNPMemOperand]>;
169 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
170 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
172 def X86vastart_save_xmm_regs :
173 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
174 SDT_X86VASTART_SAVE_XMM_REGS,
175 [SDNPHasChain, SDNPVariadic]>;
177 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
178 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
180 def X86callseq_start :
181 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
182 [SDNPHasChain, SDNPOutGlue]>;
184 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
185 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
187 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
188 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
191 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
192 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
193 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
194 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
197 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
198 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
200 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
201 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
203 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
204 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
206 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
209 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
210 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
212 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
214 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
215 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
217 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
219 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
220 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
222 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
223 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
224 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
226 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
228 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
230 def X86andn_flag : SDNode<"X86ISD::ANDN", SDTBinaryArithWithFlags>;
232 def X86blsi_flag : SDNode<"X86ISD::BLSI", SDTUnaryArithWithFlags>;
233 def X86blsmsk_flag : SDNode<"X86ISD::BLSMSK", SDTUnaryArithWithFlags>;
234 def X86blsr_flag : SDNode<"X86ISD::BLSR", SDTUnaryArithWithFlags>;
236 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
238 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
239 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
241 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
244 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
245 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
247 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
248 [SDNPHasChain, SDNPOutGlue]>;
250 //===----------------------------------------------------------------------===//
251 // X86 Operand Definitions.
254 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
255 // the index operand of an address, to conform to x86 encoding restrictions.
256 def ptr_rc_nosp : PointerLikeRegClass<1>;
258 // *mem - Operand definitions for the funky X86 addressing mode operands.
260 def X86MemAsmOperand : AsmOperandClass {
261 let Name = "Mem"; let PredicateMethod = "isMem";
263 def X86Mem8AsmOperand : AsmOperandClass {
264 let Name = "Mem8"; let PredicateMethod = "isMem8";
266 def X86Mem16AsmOperand : AsmOperandClass {
267 let Name = "Mem16"; let PredicateMethod = "isMem16";
269 def X86Mem32AsmOperand : AsmOperandClass {
270 let Name = "Mem32"; let PredicateMethod = "isMem32";
272 def X86Mem64AsmOperand : AsmOperandClass {
273 let Name = "Mem64"; let PredicateMethod = "isMem64";
275 def X86Mem80AsmOperand : AsmOperandClass {
276 let Name = "Mem80"; let PredicateMethod = "isMem80";
278 def X86Mem128AsmOperand : AsmOperandClass {
279 let Name = "Mem128"; let PredicateMethod = "isMem128";
281 def X86Mem256AsmOperand : AsmOperandClass {
282 let Name = "Mem256"; let PredicateMethod = "isMem256";
285 def X86AbsMemAsmOperand : AsmOperandClass {
287 let SuperClasses = [X86MemAsmOperand];
289 class X86MemOperand<string printMethod> : Operand<iPTR> {
290 let PrintMethod = printMethod;
291 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
292 let ParserMatchClass = X86MemAsmOperand;
295 let OperandType = "OPERAND_MEMORY" in {
296 def opaque32mem : X86MemOperand<"printopaquemem">;
297 def opaque48mem : X86MemOperand<"printopaquemem">;
298 def opaque80mem : X86MemOperand<"printopaquemem">;
299 def opaque512mem : X86MemOperand<"printopaquemem">;
301 def i8mem : X86MemOperand<"printi8mem"> {
302 let ParserMatchClass = X86Mem8AsmOperand; }
303 def i16mem : X86MemOperand<"printi16mem"> {
304 let ParserMatchClass = X86Mem16AsmOperand; }
305 def i32mem : X86MemOperand<"printi32mem"> {
306 let ParserMatchClass = X86Mem32AsmOperand; }
307 def i64mem : X86MemOperand<"printi64mem"> {
308 let ParserMatchClass = X86Mem64AsmOperand; }
309 def i128mem : X86MemOperand<"printi128mem"> {
310 let ParserMatchClass = X86Mem128AsmOperand; }
311 def i256mem : X86MemOperand<"printi256mem"> {
312 let ParserMatchClass = X86Mem256AsmOperand; }
313 def f32mem : X86MemOperand<"printf32mem"> {
314 let ParserMatchClass = X86Mem32AsmOperand; }
315 def f64mem : X86MemOperand<"printf64mem"> {
316 let ParserMatchClass = X86Mem64AsmOperand; }
317 def f80mem : X86MemOperand<"printf80mem"> {
318 let ParserMatchClass = X86Mem80AsmOperand; }
319 def f128mem : X86MemOperand<"printf128mem"> {
320 let ParserMatchClass = X86Mem128AsmOperand; }
321 def f256mem : X86MemOperand<"printf256mem">{
322 let ParserMatchClass = X86Mem256AsmOperand; }
325 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
326 // plain GR64, so that it doesn't potentially require a REX prefix.
327 def i8mem_NOREX : Operand<i64> {
328 let PrintMethod = "printi8mem";
329 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
330 let ParserMatchClass = X86Mem8AsmOperand;
331 let OperandType = "OPERAND_MEMORY";
334 // GPRs available for tailcall.
335 // It represents GR32_TC, GR64_TC or GR64_TCW64.
336 def ptr_rc_tailcall : PointerLikeRegClass<2>;
338 // Special i32mem for addresses of load folding tail calls. These are not
339 // allowed to use callee-saved registers since they must be scheduled
340 // after callee-saved register are popped.
341 def i32mem_TC : Operand<i32> {
342 let PrintMethod = "printi32mem";
343 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
345 let ParserMatchClass = X86Mem32AsmOperand;
346 let OperandType = "OPERAND_MEMORY";
349 // Special i64mem for addresses of load folding tail calls. These are not
350 // allowed to use callee-saved registers since they must be scheduled
351 // after callee-saved register are popped.
352 def i64mem_TC : Operand<i64> {
353 let PrintMethod = "printi64mem";
354 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
355 ptr_rc_tailcall, i32imm, i8imm);
356 let ParserMatchClass = X86Mem64AsmOperand;
357 let OperandType = "OPERAND_MEMORY";
360 let OperandType = "OPERAND_PCREL",
361 ParserMatchClass = X86AbsMemAsmOperand,
362 PrintMethod = "print_pcrel_imm" in {
363 def i32imm_pcrel : Operand<i32>;
364 def i16imm_pcrel : Operand<i16>;
366 def offset8 : Operand<i64>;
367 def offset16 : Operand<i64>;
368 def offset32 : Operand<i64>;
369 def offset64 : Operand<i64>;
371 // Branch targets have OtherVT type and print as pc-relative values.
372 def brtarget : Operand<OtherVT>;
373 def brtarget8 : Operand<OtherVT>;
377 def SSECC : Operand<i8> {
378 let PrintMethod = "printSSECC";
379 let OperandType = "OPERAND_IMMEDIATE";
382 def AVXCC : Operand<i8> {
383 let PrintMethod = "printSSECC";
384 let OperandType = "OPERAND_IMMEDIATE";
387 class ImmSExtAsmOperandClass : AsmOperandClass {
388 let SuperClasses = [ImmAsmOperand];
389 let RenderMethod = "addImmOperands";
392 class ImmZExtAsmOperandClass : AsmOperandClass {
393 let SuperClasses = [ImmAsmOperand];
394 let RenderMethod = "addImmOperands";
397 // Sign-extended immediate classes. We don't need to define the full lattice
398 // here because there is no instruction with an ambiguity between ImmSExti64i32
401 // The strange ranges come from the fact that the assembler always works with
402 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
403 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
406 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
407 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
408 let Name = "ImmSExti64i32";
411 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
412 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
413 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
414 let Name = "ImmSExti16i8";
415 let SuperClasses = [ImmSExti64i32AsmOperand];
418 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
419 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
420 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
421 let Name = "ImmSExti32i8";
425 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
426 let Name = "ImmZExtu32u8";
431 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
432 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
433 let Name = "ImmSExti64i8";
434 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
435 ImmSExti64i32AsmOperand];
438 // A couple of more descriptive operand definitions.
439 // 16-bits but only 8 bits are significant.
440 def i16i8imm : Operand<i16> {
441 let ParserMatchClass = ImmSExti16i8AsmOperand;
442 let OperandType = "OPERAND_IMMEDIATE";
444 // 32-bits but only 8 bits are significant.
445 def i32i8imm : Operand<i32> {
446 let ParserMatchClass = ImmSExti32i8AsmOperand;
447 let OperandType = "OPERAND_IMMEDIATE";
449 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
450 def u32u8imm : Operand<i32> {
451 let ParserMatchClass = ImmZExtu32u8AsmOperand;
452 let OperandType = "OPERAND_IMMEDIATE";
455 // 64-bits but only 32 bits are significant.
456 def i64i32imm : Operand<i64> {
457 let ParserMatchClass = ImmSExti64i32AsmOperand;
458 let OperandType = "OPERAND_IMMEDIATE";
461 // 64-bits but only 32 bits are significant, and those bits are treated as being
463 def i64i32imm_pcrel : Operand<i64> {
464 let PrintMethod = "print_pcrel_imm";
465 let ParserMatchClass = X86AbsMemAsmOperand;
466 let OperandType = "OPERAND_PCREL";
469 // 64-bits but only 8 bits are significant.
470 def i64i8imm : Operand<i64> {
471 let ParserMatchClass = ImmSExti64i8AsmOperand;
472 let OperandType = "OPERAND_IMMEDIATE";
475 def lea64_32mem : Operand<i32> {
476 let PrintMethod = "printi32mem";
477 let AsmOperandLowerMethod = "lower_lea64_32mem";
478 let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
479 let ParserMatchClass = X86MemAsmOperand;
483 //===----------------------------------------------------------------------===//
484 // X86 Complex Pattern Definitions.
487 // Define X86 specific addressing mode.
488 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
489 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
490 [add, sub, mul, X86mul_imm, shl, or, frameindex],
492 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
493 [tglobaltlsaddr], []>;
495 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
496 [add, sub, mul, X86mul_imm, shl, or, frameindex,
499 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
500 [tglobaltlsaddr], []>;
502 //===----------------------------------------------------------------------===//
503 // X86 Instruction Predicate Definitions.
504 def HasCMov : Predicate<"Subtarget->hasCMov()">;
505 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
507 def HasMMX : Predicate<"Subtarget->hasMMX()">;
508 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
509 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
510 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
511 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
512 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
513 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
514 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
515 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
516 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
517 def HasAVX : Predicate<"Subtarget->hasAVX()">;
518 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
520 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
521 def HasAES : Predicate<"Subtarget->hasAES()">;
522 def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
523 def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;
524 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
525 def HasXOP : Predicate<"Subtarget->hasXOP()">;
526 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
527 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
528 def HasF16C : Predicate<"Subtarget->hasF16C()">;
529 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
530 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
531 def HasBMI : Predicate<"Subtarget->hasBMI()">;
532 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
533 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
534 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
535 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
536 def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
537 AssemblerPredicate<"!Mode64Bit">;
538 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
539 AssemblerPredicate<"Mode64Bit">;
540 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
541 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
542 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
543 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
544 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
545 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
546 "TM.getCodeModel() != CodeModel::Kernel">;
547 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
548 "TM.getCodeModel() == CodeModel::Kernel">;
549 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
550 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
551 def OptForSize : Predicate<"OptForSize">;
552 def OptForSpeed : Predicate<"!OptForSize">;
553 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
554 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
556 //===----------------------------------------------------------------------===//
557 // X86 Instruction Format Definitions.
560 include "X86InstrFormats.td"
562 //===----------------------------------------------------------------------===//
563 // Pattern fragments.
566 // X86 specific condition code. These correspond to CondCode in
567 // X86InstrInfo.h. They must be kept in synch.
568 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
569 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
570 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
571 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
572 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
573 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
574 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
575 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
576 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
577 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
578 def X86_COND_NO : PatLeaf<(i8 10)>;
579 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
580 def X86_COND_NS : PatLeaf<(i8 12)>;
581 def X86_COND_O : PatLeaf<(i8 13)>;
582 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
583 def X86_COND_S : PatLeaf<(i8 15)>;
585 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
586 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
587 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
588 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
591 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
594 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
596 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
598 def i64immZExt32SExt8 : ImmLeaf<i64, [{
599 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
602 // Helper fragments for loads.
603 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
604 // known to be 32-bit aligned or better. Ditto for i8 to i16.
605 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
606 LoadSDNode *LD = cast<LoadSDNode>(N);
607 ISD::LoadExtType ExtType = LD->getExtensionType();
608 if (ExtType == ISD::NON_EXTLOAD)
610 if (ExtType == ISD::EXTLOAD)
611 return LD->getAlignment() >= 2 && !LD->isVolatile();
615 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
616 LoadSDNode *LD = cast<LoadSDNode>(N);
617 ISD::LoadExtType ExtType = LD->getExtensionType();
618 if (ExtType == ISD::EXTLOAD)
619 return LD->getAlignment() >= 2 && !LD->isVolatile();
623 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
624 LoadSDNode *LD = cast<LoadSDNode>(N);
625 ISD::LoadExtType ExtType = LD->getExtensionType();
626 if (ExtType == ISD::NON_EXTLOAD)
628 if (ExtType == ISD::EXTLOAD)
629 return LD->getAlignment() >= 4 && !LD->isVolatile();
633 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
634 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
635 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
636 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
637 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
639 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
640 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
641 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
642 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
643 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
644 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
646 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
647 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
648 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
649 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
650 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
651 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
652 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
653 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
654 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
655 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
657 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
658 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
659 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
660 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
661 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
662 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
663 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
664 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
665 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
666 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
669 // An 'and' node with a single use.
670 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
671 return N->hasOneUse();
673 // An 'srl' node with a single use.
674 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
675 return N->hasOneUse();
677 // An 'trunc' node with a single use.
678 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
679 return N->hasOneUse();
682 //===----------------------------------------------------------------------===//
687 let neverHasSideEffects = 1 in {
688 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
689 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
690 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize;
691 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
692 "nop{l}\t$zero", [], IIC_NOP>, TB;
696 // Constructing a stack frame.
697 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
698 "enter\t$len, $lvl", [], IIC_ENTER>;
700 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
701 def LEAVE : I<0xC9, RawFrm,
702 (outs), (ins), "leave", [], IIC_LEAVE>,
703 Requires<[In32BitMode]>;
705 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
706 def LEAVE64 : I<0xC9, RawFrm,
707 (outs), (ins), "leave", [], IIC_LEAVE>,
708 Requires<[In64BitMode]>;
710 //===----------------------------------------------------------------------===//
711 // Miscellaneous Instructions.
714 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
716 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
717 IIC_POP_REG16>, OpSize;
718 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
720 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
721 IIC_POP_REG>, OpSize;
722 def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", [],
723 IIC_POP_MEM>, OpSize;
724 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
726 def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", [],
729 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>, OpSize;
730 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
731 Requires<[In32BitMode]>;
734 let mayStore = 1 in {
735 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
736 IIC_PUSH_REG>, OpSize;
737 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
739 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
740 IIC_PUSH_REG>, OpSize;
741 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
744 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
746 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
749 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
750 "push{l}\t$imm", [], IIC_PUSH_IMM>;
751 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
752 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize;
753 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
754 "push{l}\t$imm", [], IIC_PUSH_IMM>;
756 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
758 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
759 Requires<[In32BitMode]>;
764 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
766 def POP64r : I<0x58, AddRegFrm,
767 (outs GR64:$reg), (ins), "pop{q}\t$reg", [], IIC_POP_REG>;
768 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
770 def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", [],
773 let mayStore = 1 in {
774 def PUSH64r : I<0x50, AddRegFrm,
775 (outs), (ins GR64:$reg), "push{q}\t$reg", [], IIC_PUSH_REG>;
776 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
778 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
783 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
784 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
785 "push{q}\t$imm", [], IIC_PUSH_IMM>;
786 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
787 "push{q}\t$imm", [], IIC_PUSH_IMM>;
788 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
789 "push{q}\t$imm", [], IIC_PUSH_IMM>;
792 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
793 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
794 Requires<[In64BitMode]>;
795 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
796 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
797 Requires<[In64BitMode]>;
801 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
802 mayLoad=1, neverHasSideEffects=1 in {
803 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", [], IIC_POP_A>,
804 Requires<[In32BitMode]>;
806 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
807 mayStore=1, neverHasSideEffects=1 in {
808 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", [], IIC_PUSH_A>,
809 Requires<[In32BitMode]>;
812 let Constraints = "$src = $dst" in { // GR32 = bswap GR32
813 def BSWAP32r : I<0xC8, AddRegFrm,
814 (outs GR32:$dst), (ins GR32:$src),
816 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, TB;
818 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
820 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
821 } // Constraints = "$src = $dst"
823 // Bit scan instructions.
824 let Defs = [EFLAGS] in {
825 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
826 "bsf{w}\t{$src, $dst|$dst, $src}",
827 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
828 IIC_BSF>, TB, OpSize;
829 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
830 "bsf{w}\t{$src, $dst|$dst, $src}",
831 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
832 IIC_BSF>, TB, OpSize;
833 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
834 "bsf{l}\t{$src, $dst|$dst, $src}",
835 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))], IIC_BSF>, TB;
836 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
837 "bsf{l}\t{$src, $dst|$dst, $src}",
838 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
840 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
841 "bsf{q}\t{$src, $dst|$dst, $src}",
842 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
844 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
845 "bsf{q}\t{$src, $dst|$dst, $src}",
846 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
849 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
850 "bsr{w}\t{$src, $dst|$dst, $src}",
851 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))], IIC_BSR>,
853 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
854 "bsr{w}\t{$src, $dst|$dst, $src}",
855 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
858 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
859 "bsr{l}\t{$src, $dst|$dst, $src}",
860 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))], IIC_BSR>, TB;
861 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
862 "bsr{l}\t{$src, $dst|$dst, $src}",
863 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
865 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
866 "bsr{q}\t{$src, $dst|$dst, $src}",
867 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))], IIC_BSR>, TB;
868 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
869 "bsr{q}\t{$src, $dst|$dst, $src}",
870 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
875 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
876 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
877 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "movsb", [], IIC_MOVS>;
878 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "movsw", [], IIC_MOVS>, OpSize;
879 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "movs{l|d}", [], IIC_MOVS>;
880 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", [], IIC_MOVS>;
883 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
884 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
885 def STOSB : I<0xAA, RawFrm, (outs), (ins), "stosb", [], IIC_STOS>;
886 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
887 def STOSW : I<0xAB, RawFrm, (outs), (ins), "stosw", [], IIC_STOS>, OpSize;
888 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
889 def STOSD : I<0xAB, RawFrm, (outs), (ins), "stos{l|d}", [], IIC_STOS>;
890 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
891 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", [], IIC_STOS>;
893 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scasb", [], IIC_SCAS>;
894 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scasw", [], IIC_SCAS>, OpSize;
895 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l|d}", [], IIC_SCAS>;
896 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", [], IIC_SCAS>;
898 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmpsb", [], IIC_CMPS>;
899 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmpsw", [], IIC_CMPS>, OpSize;
900 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l|d}", [], IIC_CMPS>;
901 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", [], IIC_CMPS>;
904 //===----------------------------------------------------------------------===//
905 // Move Instructions.
908 let neverHasSideEffects = 1 in {
909 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
910 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
911 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
912 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
913 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
914 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
915 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
916 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
918 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
919 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
920 "mov{b}\t{$src, $dst|$dst, $src}",
921 [(set GR8:$dst, imm:$src)], IIC_MOV>;
922 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
923 "mov{w}\t{$src, $dst|$dst, $src}",
924 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize;
925 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
926 "mov{l}\t{$src, $dst|$dst, $src}",
927 [(set GR32:$dst, imm:$src)], IIC_MOV>;
928 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
929 "movabs{q}\t{$src, $dst|$dst, $src}",
930 [(set GR64:$dst, imm:$src)], IIC_MOV>;
931 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
932 "mov{q}\t{$src, $dst|$dst, $src}",
933 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
936 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
937 "mov{b}\t{$src, $dst|$dst, $src}",
938 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
939 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
940 "mov{w}\t{$src, $dst|$dst, $src}",
941 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize;
942 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
943 "mov{l}\t{$src, $dst|$dst, $src}",
944 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>;
945 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
946 "mov{q}\t{$src, $dst|$dst, $src}",
947 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
949 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
950 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
951 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
952 "mov{b}\t{$src, %al|AL, $src}", [], IIC_MOV_MEM>,
953 Requires<[In32BitMode]>;
954 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
955 "mov{w}\t{$src, %ax|AL, $src}", [], IIC_MOV_MEM>, OpSize,
956 Requires<[In32BitMode]>;
957 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
958 "mov{l}\t{$src, %eax|EAX, $src}", [], IIC_MOV_MEM>,
959 Requires<[In32BitMode]>;
960 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
961 "mov{b}\t{%al, $dst|$dst, AL}", [], IIC_MOV_MEM>,
962 Requires<[In32BitMode]>;
963 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
964 "mov{w}\t{%ax, $dst|$dst, AL}", [], IIC_MOV_MEM>, OpSize,
965 Requires<[In32BitMode]>;
966 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
967 "mov{l}\t{%eax, $dst|$dst, EAX}", [], IIC_MOV_MEM>,
968 Requires<[In32BitMode]>;
970 // FIXME: These definitions are utterly broken
971 // Just leave them commented out for now because they're useless outside
972 // of the large code model, and most compilers won't generate the instructions
975 def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
976 "mov{q}\t{$src, %rax|RAX, $src}", []>;
977 def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
978 "mov{q}\t{$src, %rax|RAX, $src}", []>;
979 def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
980 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
981 def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
982 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
986 let isCodeGenOnly = 1 in {
987 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
988 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
989 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
990 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize;
991 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
992 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
993 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
994 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
997 let canFoldAsLoad = 1, isReMaterializable = 1 in {
998 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
999 "mov{b}\t{$src, $dst|$dst, $src}",
1000 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1001 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1002 "mov{w}\t{$src, $dst|$dst, $src}",
1003 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize;
1004 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1005 "mov{l}\t{$src, $dst|$dst, $src}",
1006 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>;
1007 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1008 "mov{q}\t{$src, $dst|$dst, $src}",
1009 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1012 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1013 "mov{b}\t{$src, $dst|$dst, $src}",
1014 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1015 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1016 "mov{w}\t{$src, $dst|$dst, $src}",
1017 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize;
1018 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1019 "mov{l}\t{$src, $dst|$dst, $src}",
1020 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>;
1021 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1022 "mov{q}\t{$src, $dst|$dst, $src}",
1023 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1025 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1026 // that they can be used for copying and storing h registers, which can't be
1027 // encoded when a REX prefix is present.
1028 let isCodeGenOnly = 1 in {
1029 let neverHasSideEffects = 1 in
1030 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1031 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1032 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>;
1034 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1035 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1036 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1038 let mayLoad = 1, neverHasSideEffects = 1,
1039 canFoldAsLoad = 1, isReMaterializable = 1 in
1040 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1041 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1042 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1047 // Condition code ops, incl. set if equal/not equal/...
1048 let Defs = [EFLAGS], Uses = [AH] in
1049 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1050 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1051 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
1052 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1053 IIC_AHF>; // AH = flags
1056 //===----------------------------------------------------------------------===//
1057 // Bit tests instructions: BT, BTS, BTR, BTC.
1059 let Defs = [EFLAGS] in {
1060 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1061 "bt{w}\t{$src2, $src1|$src1, $src2}",
1062 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1064 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1065 "bt{l}\t{$src2, $src1|$src1, $src2}",
1066 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>, TB;
1067 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1068 "bt{q}\t{$src2, $src1|$src1, $src2}",
1069 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1071 // Unlike with the register+register form, the memory+register form of the
1072 // bt instruction does not ignore the high bits of the index. From ISel's
1073 // perspective, this is pretty bizarre. Make these instructions disassembly
1076 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1077 "bt{w}\t{$src2, $src1|$src1, $src2}",
1078 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1079 // (implicit EFLAGS)]
1081 >, OpSize, TB, Requires<[FastBTMem]>;
1082 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1083 "bt{l}\t{$src2, $src1|$src1, $src2}",
1084 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1085 // (implicit EFLAGS)]
1087 >, TB, Requires<[FastBTMem]>;
1088 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1089 "bt{q}\t{$src2, $src1|$src1, $src2}",
1090 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1091 // (implicit EFLAGS)]
1095 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1096 "bt{w}\t{$src2, $src1|$src1, $src2}",
1097 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1098 IIC_BT_RI>, OpSize, TB;
1099 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1100 "bt{l}\t{$src2, $src1|$src1, $src2}",
1101 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1103 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1104 "bt{q}\t{$src2, $src1|$src1, $src2}",
1105 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1108 // Note that these instructions don't need FastBTMem because that
1109 // only applies when the other operand is in a register. When it's
1110 // an immediate, bt is still fast.
1111 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1112 "bt{w}\t{$src2, $src1|$src1, $src2}",
1113 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1114 ], IIC_BT_MI>, OpSize, TB;
1115 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1116 "bt{l}\t{$src2, $src1|$src1, $src2}",
1117 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1119 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1120 "bt{q}\t{$src2, $src1|$src1, $src2}",
1121 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1122 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1125 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1126 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1128 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1129 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1130 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1131 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1132 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1133 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1135 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1136 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1137 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1138 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1139 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1140 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1142 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1143 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1144 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1145 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1146 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1147 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1149 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1150 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1151 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1152 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1154 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1155 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1157 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1158 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1159 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1160 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1161 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1162 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1164 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1165 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1166 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1167 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1168 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1169 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1171 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1172 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1173 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1174 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1175 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1176 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1178 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1179 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1180 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1181 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1183 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1184 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1186 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1187 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1188 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1189 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1190 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1191 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1193 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1194 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1195 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1196 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1197 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1198 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1200 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1201 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1202 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1203 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1204 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1205 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1207 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1208 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1209 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1210 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1211 } // Defs = [EFLAGS]
1214 //===----------------------------------------------------------------------===//
1219 // Atomic swap. These are just normal xchg instructions. But since a memory
1220 // operand is referenced, the atomicity is ensured.
1221 let Constraints = "$val = $dst" in {
1222 def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
1223 "xchg{b}\t{$val, $ptr|$ptr, $val}",
1224 [(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))],
1226 def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
1227 "xchg{w}\t{$val, $ptr|$ptr, $val}",
1228 [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))],
1231 def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
1232 "xchg{l}\t{$val, $ptr|$ptr, $val}",
1233 [(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))],
1235 def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
1236 "xchg{q}\t{$val, $ptr|$ptr, $val}",
1237 [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))],
1240 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1241 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1242 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1243 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>, OpSize;
1244 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1245 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1246 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1247 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1250 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1251 "xchg{w}\t{$src, %ax|AX, $src}", [], IIC_XCHG_REG>, OpSize;
1252 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1253 "xchg{l}\t{$src, %eax|EAX, $src}", [], IIC_XCHG_REG>,
1254 Requires<[In32BitMode]>;
1255 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1256 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1257 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1258 "xchg{l}\t{$src, %eax|EAX, $src}", [], IIC_XCHG_REG>,
1259 Requires<[In64BitMode]>;
1260 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1261 "xchg{q}\t{$src, %rax|RAX, $src}", [], IIC_XCHG_REG>;
1265 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1266 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1267 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1268 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1270 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1271 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1272 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1273 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1275 let mayLoad = 1, mayStore = 1 in {
1276 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1277 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1278 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1279 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1281 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1282 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1283 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1284 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1288 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1289 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1290 IIC_CMPXCHG_REG8>, TB;
1291 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1292 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1293 IIC_CMPXCHG_REG>, TB, OpSize;
1294 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1295 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1296 IIC_CMPXCHG_REG>, TB;
1297 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1298 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1299 IIC_CMPXCHG_REG>, TB;
1301 let mayLoad = 1, mayStore = 1 in {
1302 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1303 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1304 IIC_CMPXCHG_MEM8>, TB;
1305 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1306 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1307 IIC_CMPXCHG_MEM>, TB, OpSize;
1308 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1309 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1310 IIC_CMPXCHG_MEM>, TB;
1311 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1312 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1313 IIC_CMPXCHG_MEM>, TB;
1316 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1317 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1318 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1320 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1321 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1322 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1323 TB, Requires<[HasCmpxchg16b]>;
1327 // Lock instruction prefix
1328 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1330 // Rex64 instruction prefix
1331 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1333 // Data16 instruction prefix
1334 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1336 // Repeat string operation instruction prefixes
1337 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1338 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1339 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1340 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1341 // Repeat while not equal (used with CMPS and SCAS)
1342 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1346 // String manipulation instructions
1347 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", [], IIC_LODS>;
1348 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", [], IIC_LODS>, OpSize;
1349 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", [], IIC_LODS>;
1350 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", [], IIC_LODS>;
1352 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", [], IIC_OUTS>;
1353 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", [], IIC_OUTS>, OpSize;
1354 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", [], IIC_OUTS>;
1357 // Flag instructions
1358 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1359 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1360 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1361 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1362 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1363 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1364 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1366 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1368 // Table lookup instructions
1369 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>;
1371 // ASCII Adjust After Addition
1372 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1373 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1374 Requires<[In32BitMode]>;
1376 // ASCII Adjust AX Before Division
1377 // sets AL, AH and EFLAGS and uses AL and AH
1378 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1379 "aad\t$src", [], IIC_AAD>, Requires<[In32BitMode]>;
1381 // ASCII Adjust AX After Multiply
1382 // sets AL, AH and EFLAGS and uses AL
1383 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1384 "aam\t$src", [], IIC_AAM>, Requires<[In32BitMode]>;
1386 // ASCII Adjust AL After Subtraction - sets
1387 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1388 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1389 Requires<[In32BitMode]>;
1391 // Decimal Adjust AL after Addition
1392 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1393 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1394 Requires<[In32BitMode]>;
1396 // Decimal Adjust AL after Subtraction
1397 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1398 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1399 Requires<[In32BitMode]>;
1401 // Check Array Index Against Bounds
1402 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1403 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize,
1404 Requires<[In32BitMode]>;
1405 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1406 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>,
1407 Requires<[In32BitMode]>;
1409 // Adjust RPL Field of Segment Selector
1410 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
1411 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1412 Requires<[In32BitMode]>;
1413 def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
1414 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1415 Requires<[In32BitMode]>;
1417 //===----------------------------------------------------------------------===//
1418 // MOVBE Instructions
1420 let Predicates = [HasMOVBE] in {
1421 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1422 "movbe{w}\t{$src, $dst|$dst, $src}",
1423 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1425 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1426 "movbe{l}\t{$src, $dst|$dst, $src}",
1427 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1429 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1430 "movbe{q}\t{$src, $dst|$dst, $src}",
1431 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1433 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1434 "movbe{w}\t{$src, $dst|$dst, $src}",
1435 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1437 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1438 "movbe{l}\t{$src, $dst|$dst, $src}",
1439 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1441 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1442 "movbe{q}\t{$src, $dst|$dst, $src}",
1443 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1447 //===----------------------------------------------------------------------===//
1448 // RDRAND Instruction
1450 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1451 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1452 "rdrand{w}\t$dst", []>, OpSize, TB;
1453 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1454 "rdrand{l}\t$dst", []>, TB;
1455 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1456 "rdrand{q}\t$dst", []>, TB;
1459 //===----------------------------------------------------------------------===//
1460 // LZCNT Instruction
1462 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1463 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1464 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1465 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1467 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1468 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1469 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1470 (implicit EFLAGS)]>, XS, OpSize;
1472 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1473 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1474 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS;
1475 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1476 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1477 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1478 (implicit EFLAGS)]>, XS;
1480 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1481 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1482 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1484 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1485 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1486 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1487 (implicit EFLAGS)]>, XS;
1490 //===----------------------------------------------------------------------===//
1493 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1494 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1495 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1496 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
1498 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1499 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1500 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
1501 (implicit EFLAGS)]>, XS, OpSize;
1503 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1504 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1505 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS;
1506 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1507 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1508 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
1509 (implicit EFLAGS)]>, XS;
1511 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1512 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1513 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
1515 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1516 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1517 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
1518 (implicit EFLAGS)]>, XS;
1521 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
1522 RegisterClass RC, X86MemOperand x86memop, SDNode OpNode,
1524 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
1525 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1526 [(set RC:$dst, EFLAGS, (OpNode RC:$src))]>, T8, VEX_4V;
1527 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
1528 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1529 [(set RC:$dst, EFLAGS, (OpNode (ld_frag addr:$src)))]>,
1533 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1534 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem,
1535 X86blsr_flag, loadi32>;
1536 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem,
1537 X86blsr_flag, loadi64>, VEX_W;
1538 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem,
1539 X86blsmsk_flag, loadi32>;
1540 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem,
1541 X86blsmsk_flag, loadi64>, VEX_W;
1542 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem,
1543 X86blsi_flag, loadi32>;
1544 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem,
1545 X86blsi_flag, loadi64>, VEX_W;
1548 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
1549 X86MemOperand x86memop, Intrinsic Int,
1551 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1552 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1553 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
1555 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
1556 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1557 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
1558 (implicit EFLAGS)]>, T8, VEX_4VOp3;
1561 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1562 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
1563 int_x86_bmi_bextr_32, loadi32>;
1564 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
1565 int_x86_bmi_bextr_64, loadi64>, VEX_W;
1568 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
1569 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
1570 int_x86_bmi_bzhi_32, loadi32>;
1571 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
1572 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
1575 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
1576 X86MemOperand x86memop, Intrinsic Int,
1578 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1579 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1580 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
1582 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
1583 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1584 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
1587 let Predicates = [HasBMI2] in {
1588 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
1589 int_x86_bmi_pdep_32, loadi32>, T8XD;
1590 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
1591 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
1592 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
1593 int_x86_bmi_pext_32, loadi32>, T8XS;
1594 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
1595 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
1598 //===----------------------------------------------------------------------===//
1600 //===----------------------------------------------------------------------===//
1602 include "X86InstrArithmetic.td"
1603 include "X86InstrCMovSetCC.td"
1604 include "X86InstrExtension.td"
1605 include "X86InstrControl.td"
1606 include "X86InstrShiftRotate.td"
1608 // X87 Floating Point Stack.
1609 include "X86InstrFPStack.td"
1611 // SIMD support (SSE, MMX and AVX)
1612 include "X86InstrFragmentsSIMD.td"
1614 // FMA - Fused Multiply-Add support (requires FMA)
1615 include "X86InstrFMA.td"
1618 include "X86InstrXOP.td"
1620 // SSE, MMX and 3DNow! vector support.
1621 include "X86InstrSSE.td"
1622 include "X86InstrMMX.td"
1623 include "X86Instr3DNow.td"
1625 include "X86InstrVMX.td"
1626 include "X86InstrSVM.td"
1628 // System instructions.
1629 include "X86InstrSystem.td"
1631 // Compiler Pseudo Instructions and Pat Patterns
1632 include "X86InstrCompiler.td"
1634 //===----------------------------------------------------------------------===//
1635 // Assembler Mnemonic Aliases
1636 //===----------------------------------------------------------------------===//
1638 def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
1639 def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
1641 def : MnemonicAlias<"cbw", "cbtw">;
1642 def : MnemonicAlias<"cwde", "cwtl">;
1643 def : MnemonicAlias<"cwd", "cwtd">;
1644 def : MnemonicAlias<"cdq", "cltd">;
1645 def : MnemonicAlias<"cdqe", "cltq">;
1646 def : MnemonicAlias<"cqo", "cqto">;
1648 // lret maps to lretl, it is not ambiguous with lretq.
1649 def : MnemonicAlias<"lret", "lretl">;
1651 def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
1652 def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
1654 def : MnemonicAlias<"loopz", "loope">;
1655 def : MnemonicAlias<"loopnz", "loopne">;
1657 def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
1658 def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
1659 def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
1660 def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
1661 def : MnemonicAlias<"popfd", "popfl">;
1663 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
1664 // all modes. However: "push (addr)" and "push $42" should default to
1665 // pushl/pushq depending on the current mode. Similar for "pop %bx"
1666 def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
1667 def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
1668 def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
1669 def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
1670 def : MnemonicAlias<"pushfd", "pushfl">;
1672 def : MnemonicAlias<"repe", "rep">;
1673 def : MnemonicAlias<"repz", "rep">;
1674 def : MnemonicAlias<"repnz", "repne">;
1676 def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
1677 def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
1679 def : MnemonicAlias<"salb", "shlb">;
1680 def : MnemonicAlias<"salw", "shlw">;
1681 def : MnemonicAlias<"sall", "shll">;
1682 def : MnemonicAlias<"salq", "shlq">;
1684 def : MnemonicAlias<"smovb", "movsb">;
1685 def : MnemonicAlias<"smovw", "movsw">;
1686 def : MnemonicAlias<"smovl", "movsl">;
1687 def : MnemonicAlias<"smovq", "movsq">;
1689 def : MnemonicAlias<"ud2a", "ud2">;
1690 def : MnemonicAlias<"verrw", "verr">;
1692 // System instruction aliases.
1693 def : MnemonicAlias<"iret", "iretl">;
1694 def : MnemonicAlias<"sysret", "sysretl">;
1695 def : MnemonicAlias<"sysexit", "sysexitl">;
1697 def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
1698 def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
1699 def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
1700 def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
1701 def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
1702 def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
1703 def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
1704 def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
1707 // Floating point stack aliases.
1708 def : MnemonicAlias<"fcmovz", "fcmove">;
1709 def : MnemonicAlias<"fcmova", "fcmovnbe">;
1710 def : MnemonicAlias<"fcmovnae", "fcmovb">;
1711 def : MnemonicAlias<"fcmovna", "fcmovbe">;
1712 def : MnemonicAlias<"fcmovae", "fcmovnb">;
1713 def : MnemonicAlias<"fcomip", "fcompi">;
1714 def : MnemonicAlias<"fildq", "fildll">;
1715 def : MnemonicAlias<"fistpq", "fistpll">;
1716 def : MnemonicAlias<"fisttpq", "fisttpll">;
1717 def : MnemonicAlias<"fldcww", "fldcw">;
1718 def : MnemonicAlias<"fnstcww", "fnstcw">;
1719 def : MnemonicAlias<"fnstsww", "fnstsw">;
1720 def : MnemonicAlias<"fucomip", "fucompi">;
1721 def : MnemonicAlias<"fwait", "wait">;
1724 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
1725 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
1726 !strconcat(Prefix, NewCond, Suffix)>;
1728 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
1729 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
1730 /// example "setz" -> "sete".
1731 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
1732 def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
1733 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
1734 def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
1735 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
1736 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
1737 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
1738 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
1739 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
1740 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
1741 def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
1743 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
1744 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
1745 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
1746 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
1749 // Aliases for set<CC>
1750 defm : IntegerCondCodeMnemonicAlias<"set", "">;
1751 // Aliases for j<CC>
1752 defm : IntegerCondCodeMnemonicAlias<"j", "">;
1753 // Aliases for cmov<CC>{w,l,q}
1754 defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
1755 defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
1756 defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
1759 //===----------------------------------------------------------------------===//
1760 // Assembler Instruction Aliases
1761 //===----------------------------------------------------------------------===//
1763 // aad/aam default to base 10 if no operand is specified.
1764 def : InstAlias<"aad", (AAD8i8 10)>;
1765 def : InstAlias<"aam", (AAM8i8 10)>;
1767 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
1768 def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
1771 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
1772 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
1773 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
1774 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
1776 // div and idiv aliases for explicit A register.
1777 def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
1778 def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
1779 def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
1780 def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
1781 def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
1782 def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
1783 def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
1784 def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
1785 def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
1786 def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
1787 def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
1788 def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
1789 def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
1790 def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
1791 def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
1792 def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
1796 // Various unary fpstack operations default to operating on on ST1.
1797 // For example, "fxch" -> "fxch %st(1)"
1798 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
1799 def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
1800 def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
1801 def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
1802 def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
1803 def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
1804 def : InstAlias<"fxch", (XCH_F ST1)>;
1805 def : InstAlias<"fcomi", (COM_FIr ST1)>;
1806 def : InstAlias<"fcompi", (COM_FIPr ST1)>;
1807 def : InstAlias<"fucom", (UCOM_Fr ST1)>;
1808 def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
1809 def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
1810 def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
1812 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
1813 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
1814 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
1816 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
1817 def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"),
1818 (Inst RST:$op), EmitAlias>;
1819 def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"),
1820 (Inst ST0), EmitAlias>;
1823 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
1824 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
1825 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
1826 defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
1827 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
1828 defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
1829 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
1830 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
1831 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
1832 defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
1833 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
1834 defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
1835 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
1836 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
1837 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
1838 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
1841 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
1842 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
1843 // solely because gas supports it.
1844 def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op), 0>;
1845 def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
1846 def : InstAlias<"fsubp %st(0), $op", (SUBR_FPrST0 RST:$op)>;
1847 def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
1848 def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
1849 def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
1851 // We accept "fnstsw %eax" even though it only writes %ax.
1852 def : InstAlias<"fnstsw %eax", (FNSTSW16r)>;
1853 def : InstAlias<"fnstsw %al" , (FNSTSW16r)>;
1854 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
1856 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
1857 // this is compatible with what GAS does.
1858 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1859 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1860 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
1861 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
1863 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
1864 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
1865 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
1866 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
1867 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
1868 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
1869 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
1871 // inb %dx -> inb %al, %dx
1872 def : InstAlias<"inb %dx", (IN8rr)>;
1873 def : InstAlias<"inw %dx", (IN16rr)>;
1874 def : InstAlias<"inl %dx", (IN32rr)>;
1875 def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
1876 def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
1877 def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
1880 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
1881 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1882 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1883 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
1884 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
1885 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1886 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1888 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
1889 // the move. All segment/mem forms are equivalent, this has the shortest
1891 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
1892 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
1894 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
1895 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
1897 // Match 'movq GR64, MMX' as an alias for movd.
1898 def : InstAlias<"movq $src, $dst",
1899 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
1900 def : InstAlias<"movq $src, $dst",
1901 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
1903 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
1904 // alias for movsl. (as in rep; movsd)
1905 def : InstAlias<"movsd", (MOVSD)>;
1908 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
1909 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
1910 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
1911 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
1912 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
1913 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
1914 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
1917 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
1918 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
1919 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
1920 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
1921 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
1922 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
1923 // Note: No GR32->GR64 movzx form.
1925 // outb %dx -> outb %al, %dx
1926 def : InstAlias<"outb %dx", (OUT8rr)>;
1927 def : InstAlias<"outw %dx", (OUT16rr)>;
1928 def : InstAlias<"outl %dx", (OUT32rr)>;
1929 def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
1930 def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
1931 def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
1933 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
1934 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
1935 // errors, since its encoding is the most compact.
1936 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
1938 // shld/shrd op,op -> shld op, op, CL
1939 def : InstAlias<"shldw $r2, $r1", (SHLD16rrCL GR16:$r1, GR16:$r2)>;
1940 def : InstAlias<"shldl $r2, $r1", (SHLD32rrCL GR32:$r1, GR32:$r2)>;
1941 def : InstAlias<"shldq $r2, $r1", (SHLD64rrCL GR64:$r1, GR64:$r2)>;
1942 def : InstAlias<"shrdw $r2, $r1", (SHRD16rrCL GR16:$r1, GR16:$r2)>;
1943 def : InstAlias<"shrdl $r2, $r1", (SHRD32rrCL GR32:$r1, GR32:$r2)>;
1944 def : InstAlias<"shrdq $r2, $r1", (SHRD64rrCL GR64:$r1, GR64:$r2)>;
1946 def : InstAlias<"shldw $reg, $mem", (SHLD16mrCL i16mem:$mem, GR16:$reg)>;
1947 def : InstAlias<"shldl $reg, $mem", (SHLD32mrCL i32mem:$mem, GR32:$reg)>;
1948 def : InstAlias<"shldq $reg, $mem", (SHLD64mrCL i64mem:$mem, GR64:$reg)>;
1949 def : InstAlias<"shrdw $reg, $mem", (SHRD16mrCL i16mem:$mem, GR16:$reg)>;
1950 def : InstAlias<"shrdl $reg, $mem", (SHRD32mrCL i32mem:$mem, GR32:$reg)>;
1951 def : InstAlias<"shrdq $reg, $mem", (SHRD64mrCL i64mem:$mem, GR64:$reg)>;
1953 /* FIXME: This is disabled because the asm matcher is currently incapable of
1954 * matching a fixed immediate like $1.
1955 // "shl X, $1" is an alias for "shl X".
1956 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
1957 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1958 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
1959 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1960 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
1961 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1962 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
1963 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1964 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
1965 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1966 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
1967 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1968 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
1969 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1970 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
1971 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1972 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
1975 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
1976 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
1977 defm : ShiftRotateByOneAlias<"rol", "ROL">;
1978 defm : ShiftRotateByOneAlias<"ror", "ROR">;
1981 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
1982 def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
1983 def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
1984 def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
1985 def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
1987 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
1988 def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
1989 def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
1990 def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
1991 def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;
1993 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
1994 def : InstAlias<"xchgw %ax, $src", (XCHG16ar GR16:$src)>;
1995 def : InstAlias<"xchgl %eax, $src", (XCHG32ar GR32:$src)>, Requires<[In32BitMode]>;
1996 def : InstAlias<"xchgl %eax, $src", (XCHG32ar64 GR32_NOAX:$src)>, Requires<[In64BitMode]>;
1997 def : InstAlias<"xchgq %rax, $src", (XCHG64ar GR64:$src)>;