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_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
102 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
104 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
106 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
107 def SDT_X86MEMBARRIERNoSSE : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
109 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
111 def X86MemBarrierNoSSE : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIERNoSSE,
113 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
115 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
117 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
121 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
122 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
123 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
124 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
126 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
127 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
129 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
130 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
132 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
133 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
135 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
136 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
137 SDNPMayLoad, SDNPMemOperand]>;
138 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
139 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
140 SDNPMayLoad, SDNPMemOperand]>;
141 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
142 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
143 SDNPMayLoad, SDNPMemOperand]>;
145 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
146 [SDNPHasChain, SDNPMayStore,
147 SDNPMayLoad, SDNPMemOperand]>;
148 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
149 [SDNPHasChain, SDNPMayStore,
150 SDNPMayLoad, SDNPMemOperand]>;
151 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
152 [SDNPHasChain, SDNPMayStore,
153 SDNPMayLoad, SDNPMemOperand]>;
154 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
155 [SDNPHasChain, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
157 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
158 [SDNPHasChain, SDNPMayStore,
159 SDNPMayLoad, SDNPMemOperand]>;
160 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
161 [SDNPHasChain, SDNPMayStore,
162 SDNPMayLoad, SDNPMemOperand]>;
163 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
164 [SDNPHasChain, SDNPMayStore,
165 SDNPMayLoad, SDNPMemOperand]>;
166 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
167 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
169 def X86vastart_save_xmm_regs :
170 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
171 SDT_X86VASTART_SAVE_XMM_REGS,
172 [SDNPHasChain, SDNPVariadic]>;
174 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
175 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
177 def X86callseq_start :
178 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
179 [SDNPHasChain, SDNPOutGlue]>;
181 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
182 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
184 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
185 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
188 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
189 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
190 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
191 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
194 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
195 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
197 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
198 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
200 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
201 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
203 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
206 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
207 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
209 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
211 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
212 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
214 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
216 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
217 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
219 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
220 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
221 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
223 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
225 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
227 def X86andn_flag : SDNode<"X86ISD::ANDN", SDTBinaryArithWithFlags>;
229 def X86blsi_flag : SDNode<"X86ISD::BLSI", SDTUnaryArithWithFlags>;
230 def X86blsmsk_flag : SDNode<"X86ISD::BLSMSK", SDTUnaryArithWithFlags>;
231 def X86blsr_flag : SDNode<"X86ISD::BLSR", SDTUnaryArithWithFlags>;
233 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
235 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
236 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
238 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
241 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
242 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
244 //===----------------------------------------------------------------------===//
245 // X86 Operand Definitions.
248 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
249 // the index operand of an address, to conform to x86 encoding restrictions.
250 def ptr_rc_nosp : PointerLikeRegClass<1>;
252 // *mem - Operand definitions for the funky X86 addressing mode operands.
254 def X86MemAsmOperand : AsmOperandClass {
256 let SuperClasses = [];
258 def X86AbsMemAsmOperand : AsmOperandClass {
260 let SuperClasses = [X86MemAsmOperand];
262 class X86MemOperand<string printMethod> : Operand<iPTR> {
263 let PrintMethod = printMethod;
264 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
265 let ParserMatchClass = X86MemAsmOperand;
268 let OperandType = "OPERAND_MEMORY" in {
269 def opaque32mem : X86MemOperand<"printopaquemem">;
270 def opaque48mem : X86MemOperand<"printopaquemem">;
271 def opaque80mem : X86MemOperand<"printopaquemem">;
272 def opaque512mem : X86MemOperand<"printopaquemem">;
274 def i8mem : X86MemOperand<"printi8mem">;
275 def i16mem : X86MemOperand<"printi16mem">;
276 def i32mem : X86MemOperand<"printi32mem">;
277 def i64mem : X86MemOperand<"printi64mem">;
278 def i128mem : X86MemOperand<"printi128mem">;
279 def i256mem : X86MemOperand<"printi256mem">;
280 def f32mem : X86MemOperand<"printf32mem">;
281 def f64mem : X86MemOperand<"printf64mem">;
282 def f80mem : X86MemOperand<"printf80mem">;
283 def f128mem : X86MemOperand<"printf128mem">;
284 def f256mem : X86MemOperand<"printf256mem">;
287 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
288 // plain GR64, so that it doesn't potentially require a REX prefix.
289 def i8mem_NOREX : Operand<i64> {
290 let PrintMethod = "printi8mem";
291 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
292 let ParserMatchClass = X86MemAsmOperand;
293 let OperandType = "OPERAND_MEMORY";
296 // GPRs available for tailcall.
297 // It represents GR64_TC or GR64_TCW64.
298 def ptr_rc_tailcall : PointerLikeRegClass<2>;
300 // Special i32mem 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 i32mem_TC : Operand<i32> {
304 let PrintMethod = "printi32mem";
305 let MIOperandInfo = (ops GR32_TC, i8imm, GR32_TC, i32imm, i8imm);
306 let ParserMatchClass = X86MemAsmOperand;
307 let OperandType = "OPERAND_MEMORY";
310 // Special i64mem for addresses of load folding tail calls. These are not
311 // allowed to use callee-saved registers since they must be scheduled
312 // after callee-saved register are popped.
313 def i64mem_TC : Operand<i64> {
314 let PrintMethod = "printi64mem";
315 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
316 ptr_rc_tailcall, i32imm, i8imm);
317 let ParserMatchClass = X86MemAsmOperand;
318 let OperandType = "OPERAND_MEMORY";
321 let OperandType = "OPERAND_PCREL",
322 ParserMatchClass = X86AbsMemAsmOperand,
323 PrintMethod = "print_pcrel_imm" in {
324 def i32imm_pcrel : Operand<i32>;
325 def i16imm_pcrel : Operand<i16>;
327 def offset8 : Operand<i64>;
328 def offset16 : Operand<i64>;
329 def offset32 : Operand<i64>;
330 def offset64 : Operand<i64>;
332 // Branch targets have OtherVT type and print as pc-relative values.
333 def brtarget : Operand<OtherVT>;
334 def brtarget8 : Operand<OtherVT>;
338 def SSECC : Operand<i8> {
339 let PrintMethod = "printSSECC";
340 let OperandType = "OPERAND_IMMEDIATE";
343 class ImmSExtAsmOperandClass : AsmOperandClass {
344 let SuperClasses = [ImmAsmOperand];
345 let RenderMethod = "addImmOperands";
348 class ImmZExtAsmOperandClass : AsmOperandClass {
349 let SuperClasses = [ImmAsmOperand];
350 let RenderMethod = "addImmOperands";
353 // Sign-extended immediate classes. We don't need to define the full lattice
354 // here because there is no instruction with an ambiguity between ImmSExti64i32
357 // The strange ranges come from the fact that the assembler always works with
358 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
359 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
362 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
363 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
364 let Name = "ImmSExti64i32";
367 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
368 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
369 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
370 let Name = "ImmSExti16i8";
371 let SuperClasses = [ImmSExti64i32AsmOperand];
374 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
375 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
376 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
377 let Name = "ImmSExti32i8";
381 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
382 let Name = "ImmZExtu32u8";
387 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
388 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
389 let Name = "ImmSExti64i8";
390 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
391 ImmSExti64i32AsmOperand];
394 // A couple of more descriptive operand definitions.
395 // 16-bits but only 8 bits are significant.
396 def i16i8imm : Operand<i16> {
397 let ParserMatchClass = ImmSExti16i8AsmOperand;
398 let OperandType = "OPERAND_IMMEDIATE";
400 // 32-bits but only 8 bits are significant.
401 def i32i8imm : Operand<i32> {
402 let ParserMatchClass = ImmSExti32i8AsmOperand;
403 let OperandType = "OPERAND_IMMEDIATE";
405 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
406 def u32u8imm : Operand<i32> {
407 let ParserMatchClass = ImmZExtu32u8AsmOperand;
408 let OperandType = "OPERAND_IMMEDIATE";
411 // 64-bits but only 32 bits are significant.
412 def i64i32imm : Operand<i64> {
413 let ParserMatchClass = ImmSExti64i32AsmOperand;
414 let OperandType = "OPERAND_IMMEDIATE";
417 // 64-bits but only 32 bits are significant, and those bits are treated as being
419 def i64i32imm_pcrel : Operand<i64> {
420 let PrintMethod = "print_pcrel_imm";
421 let ParserMatchClass = X86AbsMemAsmOperand;
422 let OperandType = "OPERAND_PCREL";
425 // 64-bits but only 8 bits are significant.
426 def i64i8imm : Operand<i64> {
427 let ParserMatchClass = ImmSExti64i8AsmOperand;
428 let OperandType = "OPERAND_IMMEDIATE";
431 def lea64_32mem : Operand<i32> {
432 let PrintMethod = "printi32mem";
433 let AsmOperandLowerMethod = "lower_lea64_32mem";
434 let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
435 let ParserMatchClass = X86MemAsmOperand;
439 //===----------------------------------------------------------------------===//
440 // X86 Complex Pattern Definitions.
443 // Define X86 specific addressing mode.
444 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
445 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
446 [add, sub, mul, X86mul_imm, shl, or, frameindex],
448 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
449 [tglobaltlsaddr], []>;
451 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
452 [add, sub, mul, X86mul_imm, shl, or, frameindex,
455 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
456 [tglobaltlsaddr], []>;
458 //===----------------------------------------------------------------------===//
459 // X86 Instruction Predicate Definitions.
460 def HasCMov : Predicate<"Subtarget->hasCMov()">;
461 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
463 def HasMMX : Predicate<"Subtarget->hasMMX()">;
464 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
465 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
466 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
467 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
468 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
469 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
470 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
471 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
472 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
474 def HasAVX : Predicate<"Subtarget->hasAVX()">;
475 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
476 def HasXMM : Predicate<"Subtarget->hasXMM()">;
477 def HasXMMInt : Predicate<"Subtarget->hasXMMInt()">;
478 def HasSSE3orAVX : Predicate<"Subtarget->hasSSE3orAVX()">;
479 def HasSSE42orAVX : Predicate<"Subtarget->hasSSE42orAVX()">;
481 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
482 def HasAES : Predicate<"Subtarget->hasAES()">;
483 def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
484 def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;
485 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
486 def HasXOP : Predicate<"Subtarget->hasXOP()">;
487 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
488 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
489 def HasF16C : Predicate<"Subtarget->hasF16C()">;
490 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
491 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
492 def HasBMI : Predicate<"Subtarget->hasBMI()">;
493 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
494 def FPStackf32 : Predicate<"!Subtarget->hasXMM()">;
495 def FPStackf64 : Predicate<"!Subtarget->hasXMMInt()">;
496 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
497 def In32BitMode : Predicate<"!Subtarget->is64Bit()">,
498 AssemblerPredicate<"!Mode64Bit">;
499 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
500 AssemblerPredicate<"Mode64Bit">;
501 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
502 def NotWin64 : Predicate<"!Subtarget->isTargetWin64()">;
503 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
504 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
505 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
506 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
507 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
508 "TM.getCodeModel() != CodeModel::Kernel">;
509 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
510 "TM.getCodeModel() == CodeModel::Kernel">;
511 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
512 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
513 def OptForSize : Predicate<"OptForSize">;
514 def OptForSpeed : Predicate<"!OptForSize">;
515 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
516 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
518 //===----------------------------------------------------------------------===//
519 // X86 Instruction Format Definitions.
522 include "X86InstrFormats.td"
524 //===----------------------------------------------------------------------===//
525 // Pattern fragments.
528 // X86 specific condition code. These correspond to CondCode in
529 // X86InstrInfo.h. They must be kept in synch.
530 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
531 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
532 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
533 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
534 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
535 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
536 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
537 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
538 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
539 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
540 def X86_COND_NO : PatLeaf<(i8 10)>;
541 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
542 def X86_COND_NS : PatLeaf<(i8 12)>;
543 def X86_COND_O : PatLeaf<(i8 13)>;
544 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
545 def X86_COND_S : PatLeaf<(i8 15)>;
547 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
548 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
549 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
550 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
553 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
556 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
558 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
560 def i64immZExt32SExt8 : ImmLeaf<i64, [{
561 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
564 // Helper fragments for loads.
565 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
566 // known to be 32-bit aligned or better. Ditto for i8 to i16.
567 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
568 LoadSDNode *LD = cast<LoadSDNode>(N);
569 ISD::LoadExtType ExtType = LD->getExtensionType();
570 if (ExtType == ISD::NON_EXTLOAD)
572 if (ExtType == ISD::EXTLOAD)
573 return LD->getAlignment() >= 2 && !LD->isVolatile();
577 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
578 LoadSDNode *LD = cast<LoadSDNode>(N);
579 ISD::LoadExtType ExtType = LD->getExtensionType();
580 if (ExtType == ISD::EXTLOAD)
581 return LD->getAlignment() >= 2 && !LD->isVolatile();
585 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
586 LoadSDNode *LD = cast<LoadSDNode>(N);
587 ISD::LoadExtType ExtType = LD->getExtensionType();
588 if (ExtType == ISD::NON_EXTLOAD)
590 if (ExtType == ISD::EXTLOAD)
591 return LD->getAlignment() >= 4 && !LD->isVolatile();
595 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
596 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
597 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
598 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
599 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
601 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
602 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
603 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
604 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
605 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
606 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
608 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
609 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
610 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
611 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
612 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
613 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
614 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
615 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
616 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
617 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
619 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
620 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
621 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
622 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
623 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
624 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
625 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
626 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
627 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
628 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
631 // An 'and' node with a single use.
632 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
633 return N->hasOneUse();
635 // An 'srl' node with a single use.
636 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
637 return N->hasOneUse();
639 // An 'trunc' node with a single use.
640 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
641 return N->hasOneUse();
644 //===----------------------------------------------------------------------===//
649 let neverHasSideEffects = 1 in {
650 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;
651 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
652 "nop{w}\t$zero", []>, TB, OpSize;
653 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
654 "nop{l}\t$zero", []>, TB;
658 // Constructing a stack frame.
659 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
660 "enter\t$len, $lvl", []>;
662 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
663 def LEAVE : I<0xC9, RawFrm,
664 (outs), (ins), "leave", []>, Requires<[In32BitMode]>;
666 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
667 def LEAVE64 : I<0xC9, RawFrm,
668 (outs), (ins), "leave", []>, Requires<[In64BitMode]>;
670 //===----------------------------------------------------------------------===//
671 // Miscellaneous Instructions.
674 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
676 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
678 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
679 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
681 def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", []>,
683 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
684 def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", []>;
686 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
687 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", []>,
688 Requires<[In32BitMode]>;
691 let mayStore = 1 in {
692 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
694 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
695 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
697 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[]>,
699 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
700 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[]>;
702 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
703 "push{l}\t$imm", []>;
704 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
705 "push{w}\t$imm", []>, OpSize;
706 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
707 "push{l}\t$imm", []>;
709 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
710 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
711 Requires<[In32BitMode]>;
716 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
718 def POP64r : I<0x58, AddRegFrm,
719 (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
720 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
721 def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", []>;
723 let mayStore = 1 in {
724 def PUSH64r : I<0x50, AddRegFrm,
725 (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
726 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
727 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", []>;
731 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
732 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
733 "push{q}\t$imm", []>;
734 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
735 "push{q}\t$imm", []>;
736 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
737 "push{q}\t$imm", []>;
740 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
741 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", []>,
742 Requires<[In64BitMode]>;
743 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
744 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", []>,
745 Requires<[In64BitMode]>;
749 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
750 mayLoad=1, neverHasSideEffects=1 in {
751 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", []>,
752 Requires<[In32BitMode]>;
754 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
755 mayStore=1, neverHasSideEffects=1 in {
756 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>,
757 Requires<[In32BitMode]>;
760 let Constraints = "$src = $dst" in { // GR32 = bswap GR32
761 def BSWAP32r : I<0xC8, AddRegFrm,
762 (outs GR32:$dst), (ins GR32:$src),
764 [(set GR32:$dst, (bswap GR32:$src))]>, TB;
766 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
768 [(set GR64:$dst, (bswap GR64:$src))]>, TB;
769 } // Constraints = "$src = $dst"
771 // Bit scan instructions.
772 let Defs = [EFLAGS] in {
773 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
774 "bsf{w}\t{$src, $dst|$dst, $src}",
775 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB, OpSize;
776 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
777 "bsf{w}\t{$src, $dst|$dst, $src}",
778 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB,
780 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
781 "bsf{l}\t{$src, $dst|$dst, $src}",
782 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))]>, TB;
783 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
784 "bsf{l}\t{$src, $dst|$dst, $src}",
785 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))]>, TB;
786 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
787 "bsf{q}\t{$src, $dst|$dst, $src}",
788 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))]>, TB;
789 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
790 "bsf{q}\t{$src, $dst|$dst, $src}",
791 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))]>, TB;
793 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
794 "bsr{w}\t{$src, $dst|$dst, $src}",
795 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB, OpSize;
796 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
797 "bsr{w}\t{$src, $dst|$dst, $src}",
798 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB,
800 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
801 "bsr{l}\t{$src, $dst|$dst, $src}",
802 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))]>, TB;
803 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
804 "bsr{l}\t{$src, $dst|$dst, $src}",
805 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))]>, TB;
806 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
807 "bsr{q}\t{$src, $dst|$dst, $src}",
808 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))]>, TB;
809 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
810 "bsr{q}\t{$src, $dst|$dst, $src}",
811 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))]>, TB;
815 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
816 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
817 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "movsb", []>;
818 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "movsw", []>, OpSize;
819 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "movs{l|d}", []>;
820 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", []>;
823 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
824 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
825 def STOSB : I<0xAA, RawFrm, (outs), (ins), "stosb", []>;
826 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
827 def STOSW : I<0xAB, RawFrm, (outs), (ins), "stosw", []>, OpSize;
828 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
829 def STOSD : I<0xAB, RawFrm, (outs), (ins), "stos{l|d}", []>;
830 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
831 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", []>;
833 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scasb", []>;
834 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scasw", []>, OpSize;
835 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l|d}", []>;
836 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", []>;
838 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmpsb", []>;
839 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmpsw", []>, OpSize;
840 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l|d}", []>;
841 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", []>;
844 //===----------------------------------------------------------------------===//
845 // Move Instructions.
848 let neverHasSideEffects = 1 in {
849 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
850 "mov{b}\t{$src, $dst|$dst, $src}", []>;
851 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
852 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
853 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
854 "mov{l}\t{$src, $dst|$dst, $src}", []>;
855 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
856 "mov{q}\t{$src, $dst|$dst, $src}", []>;
858 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
859 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
860 "mov{b}\t{$src, $dst|$dst, $src}",
861 [(set GR8:$dst, imm:$src)]>;
862 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
863 "mov{w}\t{$src, $dst|$dst, $src}",
864 [(set GR16:$dst, imm:$src)]>, OpSize;
865 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
866 "mov{l}\t{$src, $dst|$dst, $src}",
867 [(set GR32:$dst, imm:$src)]>;
868 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
869 "movabs{q}\t{$src, $dst|$dst, $src}",
870 [(set GR64:$dst, imm:$src)]>;
871 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
872 "mov{q}\t{$src, $dst|$dst, $src}",
873 [(set GR64:$dst, i64immSExt32:$src)]>;
876 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
877 "mov{b}\t{$src, $dst|$dst, $src}",
878 [(store (i8 imm:$src), addr:$dst)]>;
879 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
880 "mov{w}\t{$src, $dst|$dst, $src}",
881 [(store (i16 imm:$src), addr:$dst)]>, OpSize;
882 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
883 "mov{l}\t{$src, $dst|$dst, $src}",
884 [(store (i32 imm:$src), addr:$dst)]>;
885 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
886 "mov{q}\t{$src, $dst|$dst, $src}",
887 [(store i64immSExt32:$src, addr:$dst)]>;
889 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
890 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
891 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
892 "mov{b}\t{$src, %al|AL, $src}", []>,
893 Requires<[In32BitMode]>;
894 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
895 "mov{w}\t{$src, %ax|AL, $src}", []>, OpSize,
896 Requires<[In32BitMode]>;
897 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
898 "mov{l}\t{$src, %eax|EAX, $src}", []>,
899 Requires<[In32BitMode]>;
900 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
901 "mov{b}\t{%al, $dst|$dst, AL}", []>,
902 Requires<[In32BitMode]>;
903 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
904 "mov{w}\t{%ax, $dst|$dst, AL}", []>, OpSize,
905 Requires<[In32BitMode]>;
906 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
907 "mov{l}\t{%eax, $dst|$dst, EAX}", []>,
908 Requires<[In32BitMode]>;
910 // FIXME: These definitions are utterly broken
911 // Just leave them commented out for now because they're useless outside
912 // of the large code model, and most compilers won't generate the instructions
915 def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
916 "mov{q}\t{$src, %rax|RAX, $src}", []>;
917 def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
918 "mov{q}\t{$src, %rax|RAX, $src}", []>;
919 def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
920 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
921 def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
922 "mov{q}\t{%rax, $dst|$dst, RAX}", []>;
926 let isCodeGenOnly = 1 in {
927 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
928 "mov{b}\t{$src, $dst|$dst, $src}", []>;
929 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
930 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
931 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
932 "mov{l}\t{$src, $dst|$dst, $src}", []>;
933 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
934 "mov{q}\t{$src, $dst|$dst, $src}", []>;
937 let canFoldAsLoad = 1, isReMaterializable = 1 in {
938 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
939 "mov{b}\t{$src, $dst|$dst, $src}",
940 [(set GR8:$dst, (loadi8 addr:$src))]>;
941 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
942 "mov{w}\t{$src, $dst|$dst, $src}",
943 [(set GR16:$dst, (loadi16 addr:$src))]>, OpSize;
944 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
945 "mov{l}\t{$src, $dst|$dst, $src}",
946 [(set GR32:$dst, (loadi32 addr:$src))]>;
947 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
948 "mov{q}\t{$src, $dst|$dst, $src}",
949 [(set GR64:$dst, (load addr:$src))]>;
952 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
953 "mov{b}\t{$src, $dst|$dst, $src}",
954 [(store GR8:$src, addr:$dst)]>;
955 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
956 "mov{w}\t{$src, $dst|$dst, $src}",
957 [(store GR16:$src, addr:$dst)]>, OpSize;
958 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
959 "mov{l}\t{$src, $dst|$dst, $src}",
960 [(store GR32:$src, addr:$dst)]>;
961 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
962 "mov{q}\t{$src, $dst|$dst, $src}",
963 [(store GR64:$src, addr:$dst)]>;
965 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
966 // that they can be used for copying and storing h registers, which can't be
967 // encoded when a REX prefix is present.
968 let isCodeGenOnly = 1 in {
969 let neverHasSideEffects = 1 in
970 def MOV8rr_NOREX : I<0x88, MRMDestReg,
971 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
972 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
974 def MOV8mr_NOREX : I<0x88, MRMDestMem,
975 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
976 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
977 let mayLoad = 1, neverHasSideEffects = 1,
978 canFoldAsLoad = 1, isReMaterializable = 1 in
979 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
980 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
981 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
985 // Condition code ops, incl. set if equal/not equal/...
986 let Defs = [EFLAGS], Uses = [AH], neverHasSideEffects = 1 in
987 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf", []>; // flags = AH
988 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
989 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", []>; // AH = flags
992 //===----------------------------------------------------------------------===//
993 // Bit tests instructions: BT, BTS, BTR, BTC.
995 let Defs = [EFLAGS] in {
996 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
997 "bt{w}\t{$src2, $src1|$src1, $src2}",
998 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))]>, OpSize, TB;
999 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1000 "bt{l}\t{$src2, $src1|$src1, $src2}",
1001 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))]>, TB;
1002 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1003 "bt{q}\t{$src2, $src1|$src1, $src2}",
1004 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))]>, TB;
1006 // Unlike with the register+register form, the memory+register form of the
1007 // bt instruction does not ignore the high bits of the index. From ISel's
1008 // perspective, this is pretty bizarre. Make these instructions disassembly
1011 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1012 "bt{w}\t{$src2, $src1|$src1, $src2}",
1013 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1014 // (implicit EFLAGS)]
1016 >, OpSize, TB, Requires<[FastBTMem]>;
1017 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1018 "bt{l}\t{$src2, $src1|$src1, $src2}",
1019 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1020 // (implicit EFLAGS)]
1022 >, TB, Requires<[FastBTMem]>;
1023 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1024 "bt{q}\t{$src2, $src1|$src1, $src2}",
1025 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1026 // (implicit EFLAGS)]
1030 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1031 "bt{w}\t{$src2, $src1|$src1, $src2}",
1032 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))]>,
1034 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1035 "bt{l}\t{$src2, $src1|$src1, $src2}",
1036 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))]>, TB;
1037 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1038 "bt{q}\t{$src2, $src1|$src1, $src2}",
1039 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))]>, TB;
1041 // Note that these instructions don't need FastBTMem because that
1042 // only applies when the other operand is in a register. When it's
1043 // an immediate, bt is still fast.
1044 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1045 "bt{w}\t{$src2, $src1|$src1, $src2}",
1046 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1048 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1049 "bt{l}\t{$src2, $src1|$src1, $src2}",
1050 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1052 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1053 "bt{q}\t{$src2, $src1|$src1, $src2}",
1054 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1055 i64immSExt8:$src2))]>, TB;
1058 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1059 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1060 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1061 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1062 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1063 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1064 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1065 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1066 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1067 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1068 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1069 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1070 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1071 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1072 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1073 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1074 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1075 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1076 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1077 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1078 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1079 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1080 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1081 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1083 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1084 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1085 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1086 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1087 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1088 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1089 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1090 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1091 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1092 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1093 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1094 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1095 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1096 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1097 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1098 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1099 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1100 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1101 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1102 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1103 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1104 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1105 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1106 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1108 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1109 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1110 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1111 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1112 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1113 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1114 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1115 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1116 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1117 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1118 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1119 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1120 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1121 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1122 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1123 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1124 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1125 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1126 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1127 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1128 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1129 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1130 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1131 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1132 } // Defs = [EFLAGS]
1135 //===----------------------------------------------------------------------===//
1140 // Atomic swap. These are just normal xchg instructions. But since a memory
1141 // operand is referenced, the atomicity is ensured.
1142 let Constraints = "$val = $dst" in {
1143 def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
1144 "xchg{b}\t{$val, $ptr|$ptr, $val}",
1145 [(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))]>;
1146 def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
1147 "xchg{w}\t{$val, $ptr|$ptr, $val}",
1148 [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))]>,
1150 def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
1151 "xchg{l}\t{$val, $ptr|$ptr, $val}",
1152 [(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))]>;
1153 def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
1154 "xchg{q}\t{$val, $ptr|$ptr, $val}",
1155 [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))]>;
1157 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1158 "xchg{b}\t{$val, $src|$src, $val}", []>;
1159 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1160 "xchg{w}\t{$val, $src|$src, $val}", []>, OpSize;
1161 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1162 "xchg{l}\t{$val, $src|$src, $val}", []>;
1163 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1164 "xchg{q}\t{$val, $src|$src, $val}", []>;
1167 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1168 "xchg{w}\t{$src, %ax|AX, $src}", []>, OpSize;
1169 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1170 "xchg{l}\t{$src, %eax|EAX, $src}", []>, Requires<[In32BitMode]>;
1171 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1172 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1173 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1174 "xchg{l}\t{$src, %eax|EAX, $src}", []>, Requires<[In64BitMode]>;
1175 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1176 "xchg{q}\t{$src, %rax|RAX, $src}", []>;
1180 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1181 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1182 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1183 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1184 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1185 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1186 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1187 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1189 let mayLoad = 1, mayStore = 1 in {
1190 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1191 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1192 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1193 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1194 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1195 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1196 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1197 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1201 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1202 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1203 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1204 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1205 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1206 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1207 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1208 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1210 let mayLoad = 1, mayStore = 1 in {
1211 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1212 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1213 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1214 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1215 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1216 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1217 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1218 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1221 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1222 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1223 "cmpxchg8b\t$dst", []>, TB;
1225 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1226 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1227 "cmpxchg16b\t$dst", []>, TB, Requires<[HasCmpxchg16b]>;
1231 // Lock instruction prefix
1232 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1234 // Rex64 instruction prefix
1235 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1237 // Data16 instruction prefix
1238 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1240 // Repeat string operation instruction prefixes
1241 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1242 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1243 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1244 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1245 // Repeat while not equal (used with CMPS and SCAS)
1246 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1250 // String manipulation instructions
1251 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", []>;
1252 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", []>, OpSize;
1253 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", []>;
1254 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", []>;
1256 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", []>;
1257 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", []>, OpSize;
1258 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", []>;
1261 // Flag instructions
1262 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", []>;
1263 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", []>;
1264 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", []>;
1265 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", []>;
1266 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", []>;
1267 def STD : I<0xFD, RawFrm, (outs), (ins), "std", []>;
1268 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", []>;
1270 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", []>, TB;
1272 // Table lookup instructions
1273 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>;
1275 // ASCII Adjust After Addition
1276 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1277 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>;
1279 // ASCII Adjust AX Before Division
1280 // sets AL, AH and EFLAGS and uses AL and AH
1281 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1282 "aad\t$src", []>, Requires<[In32BitMode]>;
1284 // ASCII Adjust AX After Multiply
1285 // sets AL, AH and EFLAGS and uses AL
1286 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1287 "aam\t$src", []>, Requires<[In32BitMode]>;
1289 // ASCII Adjust AL After Subtraction - sets
1290 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1291 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", []>, Requires<[In32BitMode]>;
1293 // Decimal Adjust AL after Addition
1294 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1295 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", []>, Requires<[In32BitMode]>;
1297 // Decimal Adjust AL after Subtraction
1298 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1299 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", []>, Requires<[In32BitMode]>;
1301 // Check Array Index Against Bounds
1302 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1303 "bound\t{$src, $dst|$dst, $src}", []>, OpSize,
1304 Requires<[In32BitMode]>;
1305 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1306 "bound\t{$src, $dst|$dst, $src}", []>,
1307 Requires<[In32BitMode]>;
1309 // Adjust RPL Field of Segment Selector
1310 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
1311 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1312 def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
1313 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1315 //===----------------------------------------------------------------------===//
1316 // MOVBE Instructions
1318 let Predicates = [HasMOVBE] in {
1319 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1320 "movbe{w}\t{$src, $dst|$dst, $src}",
1321 [(set GR16:$dst, (bswap (loadi16 addr:$src)))]>, OpSize, T8;
1322 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1323 "movbe{l}\t{$src, $dst|$dst, $src}",
1324 [(set GR32:$dst, (bswap (loadi32 addr:$src)))]>, T8;
1325 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1326 "movbe{q}\t{$src, $dst|$dst, $src}",
1327 [(set GR64:$dst, (bswap (loadi64 addr:$src)))]>, T8;
1328 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1329 "movbe{w}\t{$src, $dst|$dst, $src}",
1330 [(store (bswap GR16:$src), addr:$dst)]>, OpSize, T8;
1331 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1332 "movbe{l}\t{$src, $dst|$dst, $src}",
1333 [(store (bswap GR32:$src), addr:$dst)]>, T8;
1334 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1335 "movbe{q}\t{$src, $dst|$dst, $src}",
1336 [(store (bswap GR64:$src), addr:$dst)]>, T8;
1339 //===----------------------------------------------------------------------===//
1340 // RDRAND Instruction
1342 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1343 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1344 "rdrand{w}\t$dst", []>, OpSize, TB;
1345 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1346 "rdrand{l}\t$dst", []>, TB;
1347 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1348 "rdrand{q}\t$dst", []>, TB;
1351 //===----------------------------------------------------------------------===//
1352 // LZCNT Instruction
1354 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1355 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1356 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1357 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1359 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1360 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1361 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1362 (implicit EFLAGS)]>, XS, OpSize;
1364 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1365 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1366 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS;
1367 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1368 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1369 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1370 (implicit EFLAGS)]>, XS;
1372 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1373 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1374 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1376 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1377 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1378 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1379 (implicit EFLAGS)]>, XS;
1382 //===----------------------------------------------------------------------===//
1385 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1386 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1387 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1388 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
1390 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1391 "tzcnt{w}\t{$src, $dst|$dst, $src}",
1392 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
1393 (implicit EFLAGS)]>, XS, OpSize;
1395 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1396 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1397 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS;
1398 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1399 "tzcnt{l}\t{$src, $dst|$dst, $src}",
1400 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
1401 (implicit EFLAGS)]>, XS;
1403 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1404 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1405 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
1407 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1408 "tzcnt{q}\t{$src, $dst|$dst, $src}",
1409 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
1410 (implicit EFLAGS)]>, XS;
1413 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
1414 RegisterClass RC, X86MemOperand x86memop, SDNode OpNode,
1416 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
1417 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1418 [(set RC:$dst, EFLAGS, (OpNode RC:$src))]>, T8, VEX_4V;
1419 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
1420 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
1421 [(set RC:$dst, EFLAGS, (OpNode (ld_frag addr:$src)))]>,
1425 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1426 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem,
1427 X86blsr_flag, loadi32>;
1428 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem,
1429 X86blsr_flag, loadi64>, VEX_W;
1430 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem,
1431 X86blsmsk_flag, loadi32>;
1432 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem,
1433 X86blsmsk_flag, loadi64>, VEX_W;
1434 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem,
1435 X86blsi_flag, loadi32>;
1436 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem,
1437 X86blsi_flag, loadi64>, VEX_W;
1440 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
1441 X86MemOperand x86memop, Intrinsic Int,
1443 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1444 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1445 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
1447 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
1448 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1449 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
1450 (implicit EFLAGS)]>, T8, VEX_4VOp3;
1453 let Predicates = [HasBMI], Defs = [EFLAGS] in {
1454 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
1455 int_x86_bmi_bextr_32, loadi32>;
1456 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
1457 int_x86_bmi_bextr_64, loadi64>, VEX_W;
1460 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
1461 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
1462 int_x86_bmi_bzhi_32, loadi32>;
1463 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
1464 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
1467 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
1468 X86MemOperand x86memop, Intrinsic Int,
1470 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
1471 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1472 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
1474 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
1475 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
1476 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
1479 let Predicates = [HasBMI2] in {
1480 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
1481 int_x86_bmi_pdep_32, loadi32>, T8XD;
1482 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
1483 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
1484 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
1485 int_x86_bmi_pext_32, loadi32>, T8XS;
1486 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
1487 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
1490 //===----------------------------------------------------------------------===//
1492 //===----------------------------------------------------------------------===//
1494 include "X86InstrArithmetic.td"
1495 include "X86InstrCMovSetCC.td"
1496 include "X86InstrExtension.td"
1497 include "X86InstrControl.td"
1498 include "X86InstrShiftRotate.td"
1500 // X87 Floating Point Stack.
1501 include "X86InstrFPStack.td"
1503 // SIMD support (SSE, MMX and AVX)
1504 include "X86InstrFragmentsSIMD.td"
1506 // FMA - Fused Multiply-Add support (requires FMA)
1507 include "X86InstrFMA.td"
1510 include "X86InstrXOP.td"
1512 // SSE, MMX and 3DNow! vector support.
1513 include "X86InstrSSE.td"
1514 include "X86InstrMMX.td"
1515 include "X86Instr3DNow.td"
1517 include "X86InstrVMX.td"
1519 // System instructions.
1520 include "X86InstrSystem.td"
1522 // Compiler Pseudo Instructions and Pat Patterns
1523 include "X86InstrCompiler.td"
1525 //===----------------------------------------------------------------------===//
1526 // Assembler Mnemonic Aliases
1527 //===----------------------------------------------------------------------===//
1529 def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
1530 def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
1532 def : MnemonicAlias<"cbw", "cbtw">;
1533 def : MnemonicAlias<"cwde", "cwtl">;
1534 def : MnemonicAlias<"cwd", "cwtd">;
1535 def : MnemonicAlias<"cdq", "cltd">;
1536 def : MnemonicAlias<"cdqe", "cltq">;
1537 def : MnemonicAlias<"cqo", "cqto">;
1539 // lret maps to lretl, it is not ambiguous with lretq.
1540 def : MnemonicAlias<"lret", "lretl">;
1542 def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
1543 def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
1545 def : MnemonicAlias<"loopz", "loope">;
1546 def : MnemonicAlias<"loopnz", "loopne">;
1548 def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
1549 def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
1550 def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
1551 def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
1552 def : MnemonicAlias<"popfd", "popfl">;
1554 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
1555 // all modes. However: "push (addr)" and "push $42" should default to
1556 // pushl/pushq depending on the current mode. Similar for "pop %bx"
1557 def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
1558 def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
1559 def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
1560 def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
1561 def : MnemonicAlias<"pushfd", "pushfl">;
1563 def : MnemonicAlias<"repe", "rep">;
1564 def : MnemonicAlias<"repz", "rep">;
1565 def : MnemonicAlias<"repnz", "repne">;
1567 def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
1568 def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
1570 def : MnemonicAlias<"salb", "shlb">;
1571 def : MnemonicAlias<"salw", "shlw">;
1572 def : MnemonicAlias<"sall", "shll">;
1573 def : MnemonicAlias<"salq", "shlq">;
1575 def : MnemonicAlias<"smovb", "movsb">;
1576 def : MnemonicAlias<"smovw", "movsw">;
1577 def : MnemonicAlias<"smovl", "movsl">;
1578 def : MnemonicAlias<"smovq", "movsq">;
1580 def : MnemonicAlias<"ud2a", "ud2">;
1581 def : MnemonicAlias<"verrw", "verr">;
1583 // System instruction aliases.
1584 def : MnemonicAlias<"iret", "iretl">;
1585 def : MnemonicAlias<"sysret", "sysretl">;
1586 def : MnemonicAlias<"sysexit", "sysexitl">;
1588 def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
1589 def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
1590 def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
1591 def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
1592 def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
1593 def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
1594 def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
1595 def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
1598 // Floating point stack aliases.
1599 def : MnemonicAlias<"fcmovz", "fcmove">;
1600 def : MnemonicAlias<"fcmova", "fcmovnbe">;
1601 def : MnemonicAlias<"fcmovnae", "fcmovb">;
1602 def : MnemonicAlias<"fcmovna", "fcmovbe">;
1603 def : MnemonicAlias<"fcmovae", "fcmovnb">;
1604 def : MnemonicAlias<"fcomip", "fcompi">;
1605 def : MnemonicAlias<"fildq", "fildll">;
1606 def : MnemonicAlias<"fldcww", "fldcw">;
1607 def : MnemonicAlias<"fnstcww", "fnstcw">;
1608 def : MnemonicAlias<"fnstsww", "fnstsw">;
1609 def : MnemonicAlias<"fucomip", "fucompi">;
1610 def : MnemonicAlias<"fwait", "wait">;
1613 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
1614 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
1615 !strconcat(Prefix, NewCond, Suffix)>;
1617 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
1618 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
1619 /// example "setz" -> "sete".
1620 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
1621 def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
1622 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
1623 def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
1624 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
1625 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
1626 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
1627 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
1628 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
1629 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
1630 def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
1632 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
1633 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
1634 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
1635 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
1638 // Aliases for set<CC>
1639 defm : IntegerCondCodeMnemonicAlias<"set", "">;
1640 // Aliases for j<CC>
1641 defm : IntegerCondCodeMnemonicAlias<"j", "">;
1642 // Aliases for cmov<CC>{w,l,q}
1643 defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
1644 defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
1645 defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
1648 //===----------------------------------------------------------------------===//
1649 // Assembler Instruction Aliases
1650 //===----------------------------------------------------------------------===//
1652 // aad/aam default to base 10 if no operand is specified.
1653 def : InstAlias<"aad", (AAD8i8 10)>;
1654 def : InstAlias<"aam", (AAM8i8 10)>;
1656 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
1657 def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
1660 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
1661 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
1662 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
1663 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
1665 // div and idiv aliases for explicit A register.
1666 def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
1667 def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
1668 def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
1669 def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
1670 def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
1671 def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
1672 def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
1673 def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
1674 def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
1675 def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
1676 def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
1677 def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
1678 def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
1679 def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
1680 def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
1681 def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
1685 // Various unary fpstack operations default to operating on on ST1.
1686 // For example, "fxch" -> "fxch %st(1)"
1687 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
1688 def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
1689 def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
1690 def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
1691 def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
1692 def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
1693 def : InstAlias<"fxch", (XCH_F ST1)>;
1694 def : InstAlias<"fcomi", (COM_FIr ST1)>;
1695 def : InstAlias<"fcompi", (COM_FIPr ST1)>;
1696 def : InstAlias<"fucom", (UCOM_Fr ST1)>;
1697 def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
1698 def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
1699 def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
1701 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
1702 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
1703 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
1705 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
1706 def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"),
1707 (Inst RST:$op), EmitAlias>;
1708 def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"),
1709 (Inst ST0), EmitAlias>;
1712 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
1713 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
1714 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
1715 defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
1716 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
1717 defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
1718 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
1719 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
1720 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
1721 defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
1722 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
1723 defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
1724 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
1725 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
1726 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
1727 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
1730 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
1731 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
1732 // solely because gas supports it.
1733 def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op), 0>;
1734 def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
1735 def : InstAlias<"fsubp %st(0), $op", (SUBR_FPrST0 RST:$op)>;
1736 def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
1737 def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
1738 def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
1740 // We accept "fnstsw %eax" even though it only writes %ax.
1741 def : InstAlias<"fnstsw %eax", (FNSTSW8r)>;
1742 def : InstAlias<"fnstsw %al" , (FNSTSW8r)>;
1743 def : InstAlias<"fnstsw" , (FNSTSW8r)>;
1745 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
1746 // this is compatible with what GAS does.
1747 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1748 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1749 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
1750 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
1752 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
1753 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
1754 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
1755 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
1756 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
1757 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
1758 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
1760 // inb %dx -> inb %al, %dx
1761 def : InstAlias<"inb %dx", (IN8rr)>;
1762 def : InstAlias<"inw %dx", (IN16rr)>;
1763 def : InstAlias<"inl %dx", (IN32rr)>;
1764 def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
1765 def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
1766 def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
1769 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
1770 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1771 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1772 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
1773 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
1774 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1775 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1777 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
1778 // the move. All segment/mem forms are equivalent, this has the shortest
1780 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
1781 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
1783 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
1784 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
1786 // Match 'movq GR64, MMX' as an alias for movd.
1787 def : InstAlias<"movq $src, $dst",
1788 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
1789 def : InstAlias<"movq $src, $dst",
1790 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
1792 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
1793 // alias for movsl. (as in rep; movsd)
1794 def : InstAlias<"movsd", (MOVSD)>;
1797 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
1798 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
1799 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
1800 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
1801 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
1802 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
1803 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
1806 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
1807 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
1808 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
1809 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
1810 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
1811 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
1812 // Note: No GR32->GR64 movzx form.
1814 // outb %dx -> outb %al, %dx
1815 def : InstAlias<"outb %dx", (OUT8rr)>;
1816 def : InstAlias<"outw %dx", (OUT16rr)>;
1817 def : InstAlias<"outl %dx", (OUT32rr)>;
1818 def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
1819 def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
1820 def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
1822 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
1823 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
1824 // errors, since its encoding is the most compact.
1825 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
1827 // shld/shrd op,op -> shld op, op, 1
1828 def : InstAlias<"shldw $r1, $r2", (SHLD16rri8 GR16:$r1, GR16:$r2, 1)>;
1829 def : InstAlias<"shldl $r1, $r2", (SHLD32rri8 GR32:$r1, GR32:$r2, 1)>;
1830 def : InstAlias<"shldq $r1, $r2", (SHLD64rri8 GR64:$r1, GR64:$r2, 1)>;
1831 def : InstAlias<"shrdw $r1, $r2", (SHRD16rri8 GR16:$r1, GR16:$r2, 1)>;
1832 def : InstAlias<"shrdl $r1, $r2", (SHRD32rri8 GR32:$r1, GR32:$r2, 1)>;
1833 def : InstAlias<"shrdq $r1, $r2", (SHRD64rri8 GR64:$r1, GR64:$r2, 1)>;
1835 def : InstAlias<"shldw $mem, $reg", (SHLD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1836 def : InstAlias<"shldl $mem, $reg", (SHLD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1837 def : InstAlias<"shldq $mem, $reg", (SHLD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1838 def : InstAlias<"shrdw $mem, $reg", (SHRD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1839 def : InstAlias<"shrdl $mem, $reg", (SHRD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1840 def : InstAlias<"shrdq $mem, $reg", (SHRD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1842 /* FIXME: This is disabled because the asm matcher is currently incapable of
1843 * matching a fixed immediate like $1.
1844 // "shl X, $1" is an alias for "shl X".
1845 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
1846 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1847 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
1848 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1849 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
1850 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1851 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
1852 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1853 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
1854 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1855 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
1856 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1857 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
1858 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1859 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
1860 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1861 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
1864 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
1865 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
1866 defm : ShiftRotateByOneAlias<"rol", "ROL">;
1867 defm : ShiftRotateByOneAlias<"ror", "ROR">;
1870 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
1871 def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
1872 def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
1873 def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
1874 def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
1876 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
1877 def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
1878 def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
1879 def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
1880 def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;
1882 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
1883 def : InstAlias<"xchgw %ax, $src", (XCHG16ar GR16:$src)>;
1884 def : InstAlias<"xchgl %eax, $src", (XCHG32ar GR32:$src)>, Requires<[In32BitMode]>;
1885 def : InstAlias<"xchgl %eax, $src", (XCHG32ar64 GR32_NOAX:$src)>, Requires<[In64BitMode]>;
1886 def : InstAlias<"xchgq %rax, $src", (XCHG64ar GR64:$src)>;