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 SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
68 def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
70 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
71 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
72 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
74 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
75 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
78 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
80 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
84 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
90 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
92 def SDTX86Void : SDTypeProfile<0, 0, []>;
94 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
96 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
98 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
100 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
102 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
104 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
105 def SDT_X86MEMBARRIERNoSSE : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
107 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
109 def X86MemBarrierNoSSE : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIERNoSSE,
111 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
113 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
115 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
119 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
120 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
121 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
122 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
124 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
125 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
127 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
128 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
130 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
131 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
133 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
134 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
135 SDNPMayLoad, SDNPMemOperand]>;
136 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
137 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
138 SDNPMayLoad, SDNPMemOperand]>;
139 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
140 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
141 SDNPMayLoad, SDNPMemOperand]>;
143 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
144 [SDNPHasChain, SDNPMayStore,
145 SDNPMayLoad, SDNPMemOperand]>;
146 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
147 [SDNPHasChain, SDNPMayStore,
148 SDNPMayLoad, SDNPMemOperand]>;
149 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
150 [SDNPHasChain, SDNPMayStore,
151 SDNPMayLoad, SDNPMemOperand]>;
152 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
153 [SDNPHasChain, SDNPMayStore,
154 SDNPMayLoad, SDNPMemOperand]>;
155 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
156 [SDNPHasChain, SDNPMayStore,
157 SDNPMayLoad, SDNPMemOperand]>;
158 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
159 [SDNPHasChain, SDNPMayStore,
160 SDNPMayLoad, SDNPMemOperand]>;
161 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
162 [SDNPHasChain, SDNPMayStore,
163 SDNPMayLoad, SDNPMemOperand]>;
164 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
165 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
167 def X86vastart_save_xmm_regs :
168 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
169 SDT_X86VASTART_SAVE_XMM_REGS,
170 [SDNPHasChain, SDNPVariadic]>;
172 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
173 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
175 def X86callseq_start :
176 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
177 [SDNPHasChain, SDNPOutGlue]>;
179 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
180 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
182 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
183 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
186 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
187 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
188 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
189 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
192 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
193 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
195 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
196 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
198 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
199 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
201 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
204 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
205 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
207 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
209 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
210 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
212 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
214 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
215 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
217 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
218 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
219 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
221 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
223 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
226 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
228 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
229 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
231 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
232 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
234 //===----------------------------------------------------------------------===//
235 // X86 Operand Definitions.
238 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
239 // the index operand of an address, to conform to x86 encoding restrictions.
240 def ptr_rc_nosp : PointerLikeRegClass<1>;
242 // *mem - Operand definitions for the funky X86 addressing mode operands.
244 def X86MemAsmOperand : AsmOperandClass {
246 let SuperClasses = [];
248 def X86AbsMemAsmOperand : AsmOperandClass {
250 let SuperClasses = [X86MemAsmOperand];
252 class X86MemOperand<string printMethod> : Operand<iPTR> {
253 let PrintMethod = printMethod;
254 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
255 let ParserMatchClass = X86MemAsmOperand;
258 let OperandType = "OPERAND_MEMORY" in {
259 def opaque32mem : X86MemOperand<"printopaquemem">;
260 def opaque48mem : X86MemOperand<"printopaquemem">;
261 def opaque80mem : X86MemOperand<"printopaquemem">;
262 def opaque512mem : X86MemOperand<"printopaquemem">;
264 def i8mem : X86MemOperand<"printi8mem">;
265 def i16mem : X86MemOperand<"printi16mem">;
266 def i32mem : X86MemOperand<"printi32mem">;
267 def i64mem : X86MemOperand<"printi64mem">;
268 def i128mem : X86MemOperand<"printi128mem">;
269 def i256mem : X86MemOperand<"printi256mem">;
270 def f32mem : X86MemOperand<"printf32mem">;
271 def f64mem : X86MemOperand<"printf64mem">;
272 def f80mem : X86MemOperand<"printf80mem">;
273 def f128mem : X86MemOperand<"printf128mem">;
274 def f256mem : X86MemOperand<"printf256mem">;
277 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
278 // plain GR64, so that it doesn't potentially require a REX prefix.
279 def i8mem_NOREX : Operand<i64> {
280 let PrintMethod = "printi8mem";
281 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
282 let ParserMatchClass = X86MemAsmOperand;
283 let OperandType = "OPERAND_MEMORY";
286 // GPRs available for tailcall.
287 // It represents GR64_TC or GR64_TCW64.
288 def ptr_rc_tailcall : PointerLikeRegClass<2>;
290 // Special i32mem for addresses of load folding tail calls. These are not
291 // allowed to use callee-saved registers since they must be scheduled
292 // after callee-saved register are popped.
293 def i32mem_TC : Operand<i32> {
294 let PrintMethod = "printi32mem";
295 let MIOperandInfo = (ops GR32_TC, i8imm, GR32_TC, i32imm, i8imm);
296 let ParserMatchClass = X86MemAsmOperand;
297 let OperandType = "OPERAND_MEMORY";
300 // Special i64mem for addresses of load folding tail calls. These are not
301 // allowed to use callee-saved registers since they must be scheduled
302 // after callee-saved register are popped.
303 def i64mem_TC : Operand<i64> {
304 let PrintMethod = "printi64mem";
305 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
306 ptr_rc_tailcall, i32imm, i8imm);
307 let ParserMatchClass = X86MemAsmOperand;
308 let OperandType = "OPERAND_MEMORY";
311 let OperandType = "OPERAND_PCREL",
312 ParserMatchClass = X86AbsMemAsmOperand,
313 PrintMethod = "print_pcrel_imm" in {
314 def i32imm_pcrel : Operand<i32>;
315 def i16imm_pcrel : Operand<i16>;
317 def offset8 : Operand<i64>;
318 def offset16 : Operand<i64>;
319 def offset32 : Operand<i64>;
320 def offset64 : Operand<i64>;
322 // Branch targets have OtherVT type and print as pc-relative values.
323 def brtarget : Operand<OtherVT>;
324 def brtarget8 : Operand<OtherVT>;
328 def SSECC : Operand<i8> {
329 let PrintMethod = "printSSECC";
330 let OperandType = "OPERAND_IMMEDIATE";
333 class ImmSExtAsmOperandClass : AsmOperandClass {
334 let SuperClasses = [ImmAsmOperand];
335 let RenderMethod = "addImmOperands";
338 class ImmZExtAsmOperandClass : AsmOperandClass {
339 let SuperClasses = [ImmAsmOperand];
340 let RenderMethod = "addImmOperands";
343 // Sign-extended immediate classes. We don't need to define the full lattice
344 // here because there is no instruction with an ambiguity between ImmSExti64i32
347 // The strange ranges come from the fact that the assembler always works with
348 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
349 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
352 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
353 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
354 let Name = "ImmSExti64i32";
357 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
358 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
359 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
360 let Name = "ImmSExti16i8";
361 let SuperClasses = [ImmSExti64i32AsmOperand];
364 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
365 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
366 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
367 let Name = "ImmSExti32i8";
371 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
372 let Name = "ImmZExtu32u8";
377 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
378 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
379 let Name = "ImmSExti64i8";
380 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
381 ImmSExti64i32AsmOperand];
384 // A couple of more descriptive operand definitions.
385 // 16-bits but only 8 bits are significant.
386 def i16i8imm : Operand<i16> {
387 let ParserMatchClass = ImmSExti16i8AsmOperand;
388 let OperandType = "OPERAND_IMMEDIATE";
390 // 32-bits but only 8 bits are significant.
391 def i32i8imm : Operand<i32> {
392 let ParserMatchClass = ImmSExti32i8AsmOperand;
393 let OperandType = "OPERAND_IMMEDIATE";
395 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
396 def u32u8imm : Operand<i32> {
397 let ParserMatchClass = ImmZExtu32u8AsmOperand;
398 let OperandType = "OPERAND_IMMEDIATE";
401 // 64-bits but only 32 bits are significant.
402 def i64i32imm : Operand<i64> {
403 let ParserMatchClass = ImmSExti64i32AsmOperand;
404 let OperandType = "OPERAND_IMMEDIATE";
407 // 64-bits but only 32 bits are significant, and those bits are treated as being
409 def i64i32imm_pcrel : Operand<i64> {
410 let PrintMethod = "print_pcrel_imm";
411 let ParserMatchClass = X86AbsMemAsmOperand;
412 let OperandType = "OPERAND_PCREL";
415 // 64-bits but only 8 bits are significant.
416 def i64i8imm : Operand<i64> {
417 let ParserMatchClass = ImmSExti64i8AsmOperand;
418 let OperandType = "OPERAND_IMMEDIATE";
421 def lea64_32mem : Operand<i32> {
422 let PrintMethod = "printi32mem";
423 let AsmOperandLowerMethod = "lower_lea64_32mem";
424 let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
425 let ParserMatchClass = X86MemAsmOperand;
429 //===----------------------------------------------------------------------===//
430 // X86 Complex Pattern Definitions.
433 // Define X86 specific addressing mode.
434 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
435 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
436 [add, sub, mul, X86mul_imm, shl, or, frameindex],
438 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
439 [tglobaltlsaddr], []>;
441 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
442 [add, sub, mul, X86mul_imm, shl, or, frameindex,
445 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
446 [tglobaltlsaddr], []>;
448 //===----------------------------------------------------------------------===//
449 // X86 Instruction Predicate Definitions.
450 def HasCMov : Predicate<"Subtarget->hasCMov()">;
451 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
453 def HasMMX : Predicate<"Subtarget->hasMMX()">;
454 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
455 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
456 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
457 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
458 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
459 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
460 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
461 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
462 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
464 def HasAVX : Predicate<"Subtarget->hasAVX()">;
465 def HasXMMInt : Predicate<"Subtarget->hasXMMInt()">;
467 def HasAES : Predicate<"Subtarget->hasAES()">;
468 def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
469 def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;
470 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
471 def FPStackf32 : Predicate<"!Subtarget->hasXMM()">;
472 def FPStackf64 : Predicate<"!Subtarget->hasXMMInt()">;
473 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
474 def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
475 AssemblerPredicate<"!Mode64Bit">;
476 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
477 AssemblerPredicate<"Mode64Bit">;
478 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
479 def NotWin64 : Predicate<"!Subtarget->isTargetWin64()">;
480 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
481 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
482 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
483 "TM.getCodeModel() != CodeModel::Kernel">;
484 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
485 "TM.getCodeModel() == CodeModel::Kernel">;
486 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
487 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
488 def OptForSize : Predicate<"OptForSize">;
489 def OptForSpeed : Predicate<"!OptForSize">;
490 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
491 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
493 //===----------------------------------------------------------------------===//
494 // X86 Instruction Format Definitions.
497 include "X86InstrFormats.td"
499 //===----------------------------------------------------------------------===//
500 // Pattern fragments.
503 // X86 specific condition code. These correspond to CondCode in
504 // X86InstrInfo.h. They must be kept in synch.
505 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
506 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
507 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
508 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
509 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
510 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
511 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
512 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
513 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
514 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
515 def X86_COND_NO : PatLeaf<(i8 10)>;
516 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
517 def X86_COND_NS : PatLeaf<(i8 12)>;
518 def X86_COND_O : PatLeaf<(i8 13)>;
519 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
520 def X86_COND_S : PatLeaf<(i8 15)>;
522 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
523 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
524 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
525 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
528 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
531 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
533 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
535 def i64immZExt32SExt8 : ImmLeaf<i64, [{
536 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
539 // Helper fragments for loads.
540 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
541 // known to be 32-bit aligned or better. Ditto for i8 to i16.
542 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
543 LoadSDNode *LD = cast<LoadSDNode>(N);
544 ISD::LoadExtType ExtType = LD->getExtensionType();
545 if (ExtType == ISD::NON_EXTLOAD)
547 if (ExtType == ISD::EXTLOAD)
548 return LD->getAlignment() >= 2 && !LD->isVolatile();
552 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
553 LoadSDNode *LD = cast<LoadSDNode>(N);
554 ISD::LoadExtType ExtType = LD->getExtensionType();
555 if (ExtType == ISD::EXTLOAD)
556 return LD->getAlignment() >= 2 && !LD->isVolatile();
560 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
561 LoadSDNode *LD = cast<LoadSDNode>(N);
562 ISD::LoadExtType ExtType = LD->getExtensionType();
563 if (ExtType == ISD::NON_EXTLOAD)
565 if (ExtType == ISD::EXTLOAD)
566 return LD->getAlignment() >= 4 && !LD->isVolatile();
570 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
571 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
572 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
573 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
574 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
576 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
577 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
578 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
579 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
580 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
581 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
583 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
584 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
585 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
586 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
587 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
588 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
589 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
590 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
591 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
592 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
594 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
595 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
596 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
597 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
598 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
599 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
600 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
601 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
602 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
603 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
606 // An 'and' node with a single use.
607 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
608 return N->hasOneUse();
610 // An 'srl' node with a single use.
611 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
612 return N->hasOneUse();
614 // An 'trunc' node with a single use.
615 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
616 return N->hasOneUse();
619 //===----------------------------------------------------------------------===//
624 let neverHasSideEffects = 1 in {
625 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;
626 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
627 "nop{w}\t$zero", []>, TB, OpSize;
628 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
629 "nop{l}\t$zero", []>, TB;
633 // Constructing a stack frame.
634 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
635 "enter\t$len, $lvl", []>;
637 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
638 def LEAVE : I<0xC9, RawFrm,
639 (outs), (ins), "leave", []>, Requires<[In32BitMode]>;
641 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
642 def LEAVE64 : I<0xC9, RawFrm,
643 (outs), (ins), "leave", []>, Requires<[In64BitMode]>;
645 //===----------------------------------------------------------------------===//
646 // Miscellaneous Instructions.
649 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
651 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
653 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
654 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
656 def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", []>,
658 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
659 def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", []>;
661 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
662 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", []>,
663 Requires<[In32BitMode]>;
666 let mayStore = 1 in {
667 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
669 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
670 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
672 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[]>,
674 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
675 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[]>;
677 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
678 "push{l}\t$imm", []>;
679 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
680 "push{w}\t$imm", []>, OpSize;
681 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
682 "push{l}\t$imm", []>;
684 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
685 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
686 Requires<[In32BitMode]>;
691 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
693 def POP64r : I<0x58, AddRegFrm,
694 (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
695 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
696 def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", []>;
698 let mayStore = 1 in {
699 def PUSH64r : I<0x50, AddRegFrm,
700 (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
701 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
702 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", []>;
706 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
707 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
708 "push{q}\t$imm", []>;
709 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
710 "push{q}\t$imm", []>;
711 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
712 "push{q}\t$imm", []>;
715 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
716 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", []>,
717 Requires<[In64BitMode]>;
718 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
719 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", []>,
720 Requires<[In64BitMode]>;
724 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
725 mayLoad=1, neverHasSideEffects=1 in {
726 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", []>,
727 Requires<[In32BitMode]>;
729 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
730 mayStore=1, neverHasSideEffects=1 in {
731 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>,
732 Requires<[In32BitMode]>;
735 let Constraints = "$src = $dst" in { // GR32 = bswap GR32
736 def BSWAP32r : I<0xC8, AddRegFrm,
737 (outs GR32:$dst), (ins GR32:$src),
739 [(set GR32:$dst, (bswap GR32:$src))]>, TB;
741 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
743 [(set GR64:$dst, (bswap GR64:$src))]>, TB;
744 } // Constraints = "$src = $dst"
746 // Bit scan instructions.
747 let Defs = [EFLAGS] in {
748 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
749 "bsf{w}\t{$src, $dst|$dst, $src}",
750 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB, OpSize;
751 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
752 "bsf{w}\t{$src, $dst|$dst, $src}",
753 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB,
755 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
756 "bsf{l}\t{$src, $dst|$dst, $src}",
757 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))]>, TB;
758 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
759 "bsf{l}\t{$src, $dst|$dst, $src}",
760 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))]>, TB;
761 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
762 "bsf{q}\t{$src, $dst|$dst, $src}",
763 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))]>, TB;
764 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
765 "bsf{q}\t{$src, $dst|$dst, $src}",
766 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))]>, TB;
768 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
769 "bsr{w}\t{$src, $dst|$dst, $src}",
770 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB, OpSize;
771 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
772 "bsr{w}\t{$src, $dst|$dst, $src}",
773 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB,
775 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
776 "bsr{l}\t{$src, $dst|$dst, $src}",
777 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))]>, TB;
778 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
779 "bsr{l}\t{$src, $dst|$dst, $src}",
780 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))]>, TB;
781 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
782 "bsr{q}\t{$src, $dst|$dst, $src}",
783 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))]>, TB;
784 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
785 "bsr{q}\t{$src, $dst|$dst, $src}",
786 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))]>, TB;
790 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
791 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
792 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "{movsb}", []>;
793 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "{movsw}", []>, OpSize;
794 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "{movsl|movsd}", []>;
795 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", []>;
798 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
799 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
800 def STOSB : I<0xAA, RawFrm, (outs), (ins), "{stosb}", []>;
801 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
802 def STOSW : I<0xAB, RawFrm, (outs), (ins), "{stosw}", []>, OpSize;
803 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
804 def STOSD : I<0xAB, RawFrm, (outs), (ins), "{stosl|stosd}", []>;
805 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
806 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", []>;
808 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scas{b}", []>;
809 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scas{w}", []>, OpSize;
810 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l}", []>;
811 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", []>;
813 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmps{b}", []>;
814 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmps{w}", []>, OpSize;
815 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l}", []>;
816 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", []>;
819 //===----------------------------------------------------------------------===//
820 // Move Instructions.
823 let neverHasSideEffects = 1 in {
824 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
825 "mov{b}\t{$src, $dst|$dst, $src}", []>;
826 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
827 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
828 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
829 "mov{l}\t{$src, $dst|$dst, $src}", []>;
830 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
831 "mov{q}\t{$src, $dst|$dst, $src}", []>;
833 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
834 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
835 "mov{b}\t{$src, $dst|$dst, $src}",
836 [(set GR8:$dst, imm:$src)]>;
837 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
838 "mov{w}\t{$src, $dst|$dst, $src}",
839 [(set GR16:$dst, imm:$src)]>, OpSize;
840 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
841 "mov{l}\t{$src, $dst|$dst, $src}",
842 [(set GR32:$dst, imm:$src)]>;
843 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
844 "movabs{q}\t{$src, $dst|$dst, $src}",
845 [(set GR64:$dst, imm:$src)]>;
846 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
847 "mov{q}\t{$src, $dst|$dst, $src}",
848 [(set GR64:$dst, i64immSExt32:$src)]>;
851 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
852 "mov{b}\t{$src, $dst|$dst, $src}",
853 [(store (i8 imm:$src), addr:$dst)]>;
854 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
855 "mov{w}\t{$src, $dst|$dst, $src}",
856 [(store (i16 imm:$src), addr:$dst)]>, OpSize;
857 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
858 "mov{l}\t{$src, $dst|$dst, $src}",
859 [(store (i32 imm:$src), addr:$dst)]>;
860 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
861 "mov{q}\t{$src, $dst|$dst, $src}",
862 [(store i64immSExt32:$src, addr:$dst)]>;
864 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
865 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
866 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
867 "mov{b}\t{$src, %al|%al, $src}", []>,
868 Requires<[In32BitMode]>;
869 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
870 "mov{w}\t{$src, %ax|%ax, $src}", []>, OpSize,
871 Requires<[In32BitMode]>;
872 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
873 "mov{l}\t{$src, %eax|%eax, $src}", []>,
874 Requires<[In32BitMode]>;
875 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
876 "mov{b}\t{%al, $dst|$dst, %al}", []>,
877 Requires<[In32BitMode]>;
878 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
879 "mov{w}\t{%ax, $dst|$dst, %ax}", []>, OpSize,
880 Requires<[In32BitMode]>;
881 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
882 "mov{l}\t{%eax, $dst|$dst, %eax}", []>,
883 Requires<[In32BitMode]>;
885 // FIXME: These definitions are utterly broken
886 // Just leave them commented out for now because they're useless outside
887 // of the large code model, and most compilers won't generate the instructions
890 def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
891 "mov{q}\t{$src, %rax|%rax, $src}", []>;
892 def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
893 "mov{q}\t{$src, %rax|%rax, $src}", []>;
894 def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
895 "mov{q}\t{%rax, $dst|$dst, %rax}", []>;
896 def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
897 "mov{q}\t{%rax, $dst|$dst, %rax}", []>;
901 let isCodeGenOnly = 1 in {
902 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
903 "mov{b}\t{$src, $dst|$dst, $src}", []>;
904 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
905 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
906 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
907 "mov{l}\t{$src, $dst|$dst, $src}", []>;
908 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
909 "mov{q}\t{$src, $dst|$dst, $src}", []>;
912 let canFoldAsLoad = 1, isReMaterializable = 1 in {
913 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
914 "mov{b}\t{$src, $dst|$dst, $src}",
915 [(set GR8:$dst, (loadi8 addr:$src))]>;
916 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
917 "mov{w}\t{$src, $dst|$dst, $src}",
918 [(set GR16:$dst, (loadi16 addr:$src))]>, OpSize;
919 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
920 "mov{l}\t{$src, $dst|$dst, $src}",
921 [(set GR32:$dst, (loadi32 addr:$src))]>;
922 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
923 "mov{q}\t{$src, $dst|$dst, $src}",
924 [(set GR64:$dst, (load addr:$src))]>;
927 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
928 "mov{b}\t{$src, $dst|$dst, $src}",
929 [(store GR8:$src, addr:$dst)]>;
930 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
931 "mov{w}\t{$src, $dst|$dst, $src}",
932 [(store GR16:$src, addr:$dst)]>, OpSize;
933 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
934 "mov{l}\t{$src, $dst|$dst, $src}",
935 [(store GR32:$src, addr:$dst)]>;
936 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
937 "mov{q}\t{$src, $dst|$dst, $src}",
938 [(store GR64:$src, addr:$dst)]>;
940 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
941 // that they can be used for copying and storing h registers, which can't be
942 // encoded when a REX prefix is present.
943 let isCodeGenOnly = 1 in {
944 let neverHasSideEffects = 1 in
945 def MOV8rr_NOREX : I<0x88, MRMDestReg,
946 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
947 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
949 def MOV8mr_NOREX : I<0x88, MRMDestMem,
950 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
951 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
953 canFoldAsLoad = 1, isReMaterializable = 1 in
954 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
955 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
956 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
960 // Condition code ops, incl. set if equal/not equal/...
961 let Defs = [EFLAGS], Uses = [AH], neverHasSideEffects = 1 in
962 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf", []>; // flags = AH
963 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
964 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", []>; // AH = flags
967 //===----------------------------------------------------------------------===//
968 // Bit tests instructions: BT, BTS, BTR, BTC.
970 let Defs = [EFLAGS] in {
971 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
972 "bt{w}\t{$src2, $src1|$src1, $src2}",
973 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))]>, OpSize, TB;
974 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
975 "bt{l}\t{$src2, $src1|$src1, $src2}",
976 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))]>, TB;
977 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
978 "bt{q}\t{$src2, $src1|$src1, $src2}",
979 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))]>, TB;
981 // Unlike with the register+register form, the memory+register form of the
982 // bt instruction does not ignore the high bits of the index. From ISel's
983 // perspective, this is pretty bizarre. Make these instructions disassembly
986 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
987 "bt{w}\t{$src2, $src1|$src1, $src2}",
988 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
989 // (implicit EFLAGS)]
991 >, OpSize, TB, Requires<[FastBTMem]>;
992 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
993 "bt{l}\t{$src2, $src1|$src1, $src2}",
994 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
995 // (implicit EFLAGS)]
997 >, TB, Requires<[FastBTMem]>;
998 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
999 "bt{q}\t{$src2, $src1|$src1, $src2}",
1000 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1001 // (implicit EFLAGS)]
1005 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1006 "bt{w}\t{$src2, $src1|$src1, $src2}",
1007 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))]>,
1009 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1010 "bt{l}\t{$src2, $src1|$src1, $src2}",
1011 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))]>, TB;
1012 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1013 "bt{q}\t{$src2, $src1|$src1, $src2}",
1014 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))]>, TB;
1016 // Note that these instructions don't need FastBTMem because that
1017 // only applies when the other operand is in a register. When it's
1018 // an immediate, bt is still fast.
1019 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1020 "bt{w}\t{$src2, $src1|$src1, $src2}",
1021 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1023 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1024 "bt{l}\t{$src2, $src1|$src1, $src2}",
1025 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1027 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1028 "bt{q}\t{$src2, $src1|$src1, $src2}",
1029 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1030 i64immSExt8:$src2))]>, TB;
1033 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1034 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1035 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1036 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1037 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1038 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1039 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1040 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1041 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1042 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1043 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1044 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1045 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1046 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1047 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1048 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1049 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1050 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1051 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1052 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1053 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1054 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1055 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1056 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1058 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1059 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1060 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1061 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1062 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1063 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1064 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1065 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1066 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1067 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1068 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1069 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1070 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1071 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1072 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1073 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1074 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1075 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1076 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1077 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1078 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1079 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1080 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1081 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1083 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1084 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1085 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1086 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1087 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1088 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1089 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1090 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1091 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1092 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1093 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1094 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1095 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1096 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1097 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1098 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1099 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1100 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1101 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1102 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1103 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1104 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1105 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1106 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1107 } // Defs = [EFLAGS]
1110 //===----------------------------------------------------------------------===//
1115 // Atomic swap. These are just normal xchg instructions. But since a memory
1116 // operand is referenced, the atomicity is ensured.
1117 let Constraints = "$val = $dst" in {
1118 def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
1119 "xchg{b}\t{$val, $ptr|$ptr, $val}",
1120 [(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))]>;
1121 def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
1122 "xchg{w}\t{$val, $ptr|$ptr, $val}",
1123 [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))]>,
1125 def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
1126 "xchg{l}\t{$val, $ptr|$ptr, $val}",
1127 [(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))]>;
1128 def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
1129 "xchg{q}\t{$val, $ptr|$ptr, $val}",
1130 [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))]>;
1132 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1133 "xchg{b}\t{$val, $src|$src, $val}", []>;
1134 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1135 "xchg{w}\t{$val, $src|$src, $val}", []>, OpSize;
1136 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1137 "xchg{l}\t{$val, $src|$src, $val}", []>;
1138 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1139 "xchg{q}\t{$val, $src|$src, $val}", []>;
1142 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1143 "xchg{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
1144 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1145 "xchg{l}\t{$src, %eax|%eax, $src}", []>;
1146 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1147 "xchg{q}\t{$src, %rax|%rax, $src}", []>;
1151 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1152 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1153 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1154 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1155 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1156 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1157 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1158 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1160 let mayLoad = 1, mayStore = 1 in {
1161 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1162 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1163 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1164 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1165 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1166 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1167 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1168 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1172 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1173 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1174 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1175 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1176 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1177 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1178 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1179 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1181 let mayLoad = 1, mayStore = 1 in {
1182 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1183 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1184 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1185 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1186 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1187 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1188 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1189 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1192 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1193 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1194 "cmpxchg8b\t$dst", []>, TB;
1196 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1197 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1198 "cmpxchg16b\t$dst", []>, TB, Requires<[HasCmpxchg16b]>;
1202 // Lock instruction prefix
1203 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1205 // Rex64 instruction prefix
1206 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1208 // Data16 instruction prefix
1209 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1211 // Repeat string operation instruction prefixes
1212 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1213 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1214 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1215 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1216 // Repeat while not equal (used with CMPS and SCAS)
1217 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1221 // String manipulation instructions
1222 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", []>;
1223 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", []>, OpSize;
1224 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", []>;
1225 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", []>;
1227 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", []>;
1228 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", []>, OpSize;
1229 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", []>;
1232 // Flag instructions
1233 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", []>;
1234 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", []>;
1235 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", []>;
1236 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", []>;
1237 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", []>;
1238 def STD : I<0xFD, RawFrm, (outs), (ins), "std", []>;
1239 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", []>;
1241 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", []>, TB;
1243 // Table lookup instructions
1244 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>;
1246 // ASCII Adjust After Addition
1247 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1248 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>;
1250 // ASCII Adjust AX Before Division
1251 // sets AL, AH and EFLAGS and uses AL and AH
1252 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1253 "aad\t$src", []>, Requires<[In32BitMode]>;
1255 // ASCII Adjust AX After Multiply
1256 // sets AL, AH and EFLAGS and uses AL
1257 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1258 "aam\t$src", []>, Requires<[In32BitMode]>;
1260 // ASCII Adjust AL After Subtraction - sets
1261 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1262 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", []>, Requires<[In32BitMode]>;
1264 // Decimal Adjust AL after Addition
1265 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1266 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", []>, Requires<[In32BitMode]>;
1268 // Decimal Adjust AL after Subtraction
1269 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1270 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", []>, Requires<[In32BitMode]>;
1272 // Check Array Index Against Bounds
1273 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1274 "bound\t{$src, $dst|$dst, $src}", []>, OpSize,
1275 Requires<[In32BitMode]>;
1276 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1277 "bound\t{$src, $dst|$dst, $src}", []>,
1278 Requires<[In32BitMode]>;
1280 // Adjust RPL Field of Segment Selector
1281 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
1282 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1283 def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
1284 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1286 //===----------------------------------------------------------------------===//
1288 //===----------------------------------------------------------------------===//
1290 include "X86InstrArithmetic.td"
1291 include "X86InstrCMovSetCC.td"
1292 include "X86InstrExtension.td"
1293 include "X86InstrControl.td"
1294 include "X86InstrShiftRotate.td"
1296 // X87 Floating Point Stack.
1297 include "X86InstrFPStack.td"
1299 // SIMD support (SSE, MMX and AVX)
1300 include "X86InstrFragmentsSIMD.td"
1302 // FMA - Fused Multiply-Add support (requires FMA)
1303 include "X86InstrFMA.td"
1305 // SSE, MMX and 3DNow! vector support.
1306 include "X86InstrSSE.td"
1307 include "X86InstrMMX.td"
1308 include "X86Instr3DNow.td"
1310 include "X86InstrVMX.td"
1312 // System instructions.
1313 include "X86InstrSystem.td"
1315 // Compiler Pseudo Instructions and Pat Patterns
1316 include "X86InstrCompiler.td"
1318 //===----------------------------------------------------------------------===//
1319 // Assembler Mnemonic Aliases
1320 //===----------------------------------------------------------------------===//
1322 def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
1323 def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
1325 def : MnemonicAlias<"cbw", "cbtw">;
1326 def : MnemonicAlias<"cwd", "cwtd">;
1327 def : MnemonicAlias<"cdq", "cltd">;
1328 def : MnemonicAlias<"cwde", "cwtl">;
1329 def : MnemonicAlias<"cdqe", "cltq">;
1331 // lret maps to lretl, it is not ambiguous with lretq.
1332 def : MnemonicAlias<"lret", "lretl">;
1334 def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
1335 def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
1337 def : MnemonicAlias<"loopz", "loope">;
1338 def : MnemonicAlias<"loopnz", "loopne">;
1340 def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
1341 def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
1342 def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
1343 def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
1344 def : MnemonicAlias<"popfd", "popfl">;
1346 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
1347 // all modes. However: "push (addr)" and "push $42" should default to
1348 // pushl/pushq depending on the current mode. Similar for "pop %bx"
1349 def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
1350 def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
1351 def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
1352 def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
1353 def : MnemonicAlias<"pushfd", "pushfl">;
1355 def : MnemonicAlias<"repe", "rep">;
1356 def : MnemonicAlias<"repz", "rep">;
1357 def : MnemonicAlias<"repnz", "repne">;
1359 def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
1360 def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
1362 def : MnemonicAlias<"salb", "shlb">;
1363 def : MnemonicAlias<"salw", "shlw">;
1364 def : MnemonicAlias<"sall", "shll">;
1365 def : MnemonicAlias<"salq", "shlq">;
1367 def : MnemonicAlias<"smovb", "movsb">;
1368 def : MnemonicAlias<"smovw", "movsw">;
1369 def : MnemonicAlias<"smovl", "movsl">;
1370 def : MnemonicAlias<"smovq", "movsq">;
1372 def : MnemonicAlias<"ud2a", "ud2">;
1373 def : MnemonicAlias<"verrw", "verr">;
1375 // System instruction aliases.
1376 def : MnemonicAlias<"iret", "iretl">;
1377 def : MnemonicAlias<"sysret", "sysretl">;
1379 def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
1380 def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
1381 def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
1382 def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
1383 def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
1384 def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
1385 def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
1386 def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
1389 // Floating point stack aliases.
1390 def : MnemonicAlias<"fcmovz", "fcmove">;
1391 def : MnemonicAlias<"fcmova", "fcmovnbe">;
1392 def : MnemonicAlias<"fcmovnae", "fcmovb">;
1393 def : MnemonicAlias<"fcmovna", "fcmovbe">;
1394 def : MnemonicAlias<"fcmovae", "fcmovnb">;
1395 def : MnemonicAlias<"fcomip", "fcompi">;
1396 def : MnemonicAlias<"fildq", "fildll">;
1397 def : MnemonicAlias<"fldcww", "fldcw">;
1398 def : MnemonicAlias<"fnstcww", "fnstcw">;
1399 def : MnemonicAlias<"fnstsww", "fnstsw">;
1400 def : MnemonicAlias<"fucomip", "fucompi">;
1401 def : MnemonicAlias<"fwait", "wait">;
1404 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
1405 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
1406 !strconcat(Prefix, NewCond, Suffix)>;
1408 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
1409 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
1410 /// example "setz" -> "sete".
1411 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
1412 def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
1413 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
1414 def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
1415 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
1416 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
1417 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
1418 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
1419 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
1420 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
1421 def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
1423 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
1424 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
1425 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
1426 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
1429 // Aliases for set<CC>
1430 defm : IntegerCondCodeMnemonicAlias<"set", "">;
1431 // Aliases for j<CC>
1432 defm : IntegerCondCodeMnemonicAlias<"j", "">;
1433 // Aliases for cmov<CC>{w,l,q}
1434 defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
1435 defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
1436 defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
1439 //===----------------------------------------------------------------------===//
1440 // Assembler Instruction Aliases
1441 //===----------------------------------------------------------------------===//
1443 // aad/aam default to base 10 if no operand is specified.
1444 def : InstAlias<"aad", (AAD8i8 10)>;
1445 def : InstAlias<"aam", (AAM8i8 10)>;
1447 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
1448 def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
1451 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
1452 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
1453 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
1454 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
1456 // div and idiv aliases for explicit A register.
1457 def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
1458 def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
1459 def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
1460 def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
1461 def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
1462 def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
1463 def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
1464 def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
1465 def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
1466 def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
1467 def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
1468 def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
1469 def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
1470 def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
1471 def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
1472 def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
1476 // Various unary fpstack operations default to operating on on ST1.
1477 // For example, "fxch" -> "fxch %st(1)"
1478 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
1479 def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
1480 def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
1481 def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
1482 def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
1483 def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
1484 def : InstAlias<"fxch", (XCH_F ST1)>;
1485 def : InstAlias<"fcomi", (COM_FIr ST1)>;
1486 def : InstAlias<"fcompi", (COM_FIPr ST1)>;
1487 def : InstAlias<"fucom", (UCOM_Fr ST1)>;
1488 def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
1489 def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
1490 def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
1492 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
1493 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
1494 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
1496 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
1497 def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"),
1498 (Inst RST:$op), EmitAlias>;
1499 def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"),
1500 (Inst ST0), EmitAlias>;
1503 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
1504 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
1505 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
1506 defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
1507 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
1508 defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
1509 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
1510 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
1511 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
1512 defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
1513 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
1514 defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
1515 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
1516 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
1517 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
1518 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
1521 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
1522 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
1523 // solely because gas supports it.
1524 def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op), 0>;
1525 def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
1526 def : InstAlias<"fsubp %st(0), $op", (SUBR_FPrST0 RST:$op)>;
1527 def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
1528 def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
1529 def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
1531 // We accept "fnstsw %eax" even though it only writes %ax.
1532 def : InstAlias<"fnstsw %eax", (FNSTSW8r)>;
1533 def : InstAlias<"fnstsw %al" , (FNSTSW8r)>;
1534 def : InstAlias<"fnstsw" , (FNSTSW8r)>;
1536 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
1537 // this is compatible with what GAS does.
1538 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1539 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1540 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
1541 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
1543 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
1544 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
1545 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
1546 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
1547 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
1548 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
1549 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
1551 // inb %dx -> inb %al, %dx
1552 def : InstAlias<"inb %dx", (IN8rr)>;
1553 def : InstAlias<"inw %dx", (IN16rr)>;
1554 def : InstAlias<"inl %dx", (IN32rr)>;
1555 def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
1556 def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
1557 def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
1560 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
1561 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1562 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1563 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
1564 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
1565 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1566 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1568 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
1569 // the move. All segment/mem forms are equivalent, this has the shortest
1571 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
1572 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
1574 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
1575 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
1577 // Match 'movq GR64, MMX' as an alias for movd.
1578 def : InstAlias<"movq $src, $dst",
1579 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
1580 def : InstAlias<"movq $src, $dst",
1581 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
1583 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
1584 // alias for movsl. (as in rep; movsd)
1585 def : InstAlias<"movsd", (MOVSD)>;
1588 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
1589 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
1590 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
1591 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
1592 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
1593 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
1594 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
1597 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
1598 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
1599 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
1600 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
1601 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
1602 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
1603 // Note: No GR32->GR64 movzx form.
1605 // outb %dx -> outb %al, %dx
1606 def : InstAlias<"outb %dx", (OUT8rr)>;
1607 def : InstAlias<"outw %dx", (OUT16rr)>;
1608 def : InstAlias<"outl %dx", (OUT32rr)>;
1609 def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
1610 def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
1611 def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
1613 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
1614 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
1615 // errors, since its encoding is the most compact.
1616 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
1618 // shld/shrd op,op -> shld op, op, 1
1619 def : InstAlias<"shldw $r1, $r2", (SHLD16rri8 GR16:$r1, GR16:$r2, 1)>;
1620 def : InstAlias<"shldl $r1, $r2", (SHLD32rri8 GR32:$r1, GR32:$r2, 1)>;
1621 def : InstAlias<"shldq $r1, $r2", (SHLD64rri8 GR64:$r1, GR64:$r2, 1)>;
1622 def : InstAlias<"shrdw $r1, $r2", (SHRD16rri8 GR16:$r1, GR16:$r2, 1)>;
1623 def : InstAlias<"shrdl $r1, $r2", (SHRD32rri8 GR32:$r1, GR32:$r2, 1)>;
1624 def : InstAlias<"shrdq $r1, $r2", (SHRD64rri8 GR64:$r1, GR64:$r2, 1)>;
1626 def : InstAlias<"shldw $mem, $reg", (SHLD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1627 def : InstAlias<"shldl $mem, $reg", (SHLD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1628 def : InstAlias<"shldq $mem, $reg", (SHLD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1629 def : InstAlias<"shrdw $mem, $reg", (SHRD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1630 def : InstAlias<"shrdl $mem, $reg", (SHRD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1631 def : InstAlias<"shrdq $mem, $reg", (SHRD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1633 /* FIXME: This is disabled because the asm matcher is currently incapable of
1634 * matching a fixed immediate like $1.
1635 // "shl X, $1" is an alias for "shl X".
1636 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
1637 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1638 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
1639 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1640 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
1641 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1642 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
1643 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1644 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
1645 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1646 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
1647 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1648 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
1649 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1650 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
1651 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1652 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
1655 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
1656 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
1657 defm : ShiftRotateByOneAlias<"rol", "ROL">;
1658 defm : ShiftRotateByOneAlias<"ror", "ROR">;
1661 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
1662 def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
1663 def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
1664 def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
1665 def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
1667 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
1668 def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
1669 def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
1670 def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
1671 def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;