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 SDTX86Cmov : SDTypeProfile<1, 4,
27 [SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>,
28 SDTCisVT<3, i8>, SDTCisVT<4, i32>]>;
30 // Unary and binary operator instructions that set EFLAGS as a side-effect.
31 def SDTUnaryArithWithFlags : SDTypeProfile<2, 1,
32 [SDTCisInt<0>, SDTCisVT<1, i32>]>;
34 def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
37 SDTCisInt<0>, SDTCisVT<1, i32>]>;
39 // SDTBinaryArithWithFlagsInOut - RES1, EFLAGS = op LHS, RHS, EFLAGS
40 def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
46 // RES1, RES2, FLAGS = op LHS, RHS
47 def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
51 SDTCisInt<0>, SDTCisVT<1, i32>]>;
52 def SDTX86BrCond : SDTypeProfile<0, 3,
53 [SDTCisVT<0, OtherVT>,
54 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
56 def SDTX86SetCC : SDTypeProfile<1, 2,
58 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
59 def SDTX86SetCC_C : SDTypeProfile<1, 2,
61 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
63 def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
65 def SDTX86cas8 : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
67 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
68 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
69 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
71 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
72 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
75 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
77 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
81 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
87 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
89 def SDTX86Void : SDTypeProfile<0, 0, []>;
91 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
93 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
95 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
97 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
99 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
101 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
102 def SDT_X86MEMBARRIERNoSSE : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
104 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
106 def X86MemBarrierNoSSE : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIERNoSSE,
108 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
110 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
112 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
116 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
117 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
118 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
119 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
121 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
122 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
124 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
125 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
127 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
128 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
130 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
131 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
132 SDNPMayLoad, SDNPMemOperand]>;
133 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86cas8,
134 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
135 SDNPMayLoad, SDNPMemOperand]>;
136 def X86AtomAdd64 : SDNode<"X86ISD::ATOMADD64_DAG", SDTX86atomicBinary,
137 [SDNPHasChain, SDNPMayStore,
138 SDNPMayLoad, SDNPMemOperand]>;
139 def X86AtomSub64 : SDNode<"X86ISD::ATOMSUB64_DAG", SDTX86atomicBinary,
140 [SDNPHasChain, SDNPMayStore,
141 SDNPMayLoad, SDNPMemOperand]>;
142 def X86AtomOr64 : SDNode<"X86ISD::ATOMOR64_DAG", SDTX86atomicBinary,
143 [SDNPHasChain, SDNPMayStore,
144 SDNPMayLoad, SDNPMemOperand]>;
145 def X86AtomXor64 : SDNode<"X86ISD::ATOMXOR64_DAG", SDTX86atomicBinary,
146 [SDNPHasChain, SDNPMayStore,
147 SDNPMayLoad, SDNPMemOperand]>;
148 def X86AtomAnd64 : SDNode<"X86ISD::ATOMAND64_DAG", SDTX86atomicBinary,
149 [SDNPHasChain, SDNPMayStore,
150 SDNPMayLoad, SDNPMemOperand]>;
151 def X86AtomNand64 : SDNode<"X86ISD::ATOMNAND64_DAG", SDTX86atomicBinary,
152 [SDNPHasChain, SDNPMayStore,
153 SDNPMayLoad, SDNPMemOperand]>;
154 def X86AtomSwap64 : SDNode<"X86ISD::ATOMSWAP64_DAG", SDTX86atomicBinary,
155 [SDNPHasChain, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
157 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
158 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
160 def X86vastart_save_xmm_regs :
161 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
162 SDT_X86VASTART_SAVE_XMM_REGS,
163 [SDNPHasChain, SDNPVariadic]>;
165 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
166 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
168 def X86callseq_start :
169 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
170 [SDNPHasChain, SDNPOutGlue]>;
172 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
173 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
175 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
176 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
179 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
180 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
181 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
182 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
185 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
186 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
188 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
189 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
191 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
192 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
194 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
197 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
198 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
200 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
202 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
203 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
205 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
207 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
208 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
210 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
211 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
212 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
214 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
216 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
219 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
221 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
222 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
224 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
225 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
227 //===----------------------------------------------------------------------===//
228 // X86 Operand Definitions.
231 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
232 // the index operand of an address, to conform to x86 encoding restrictions.
233 def ptr_rc_nosp : PointerLikeRegClass<1>;
235 // *mem - Operand definitions for the funky X86 addressing mode operands.
237 def X86MemAsmOperand : AsmOperandClass {
239 let SuperClasses = [];
241 def X86AbsMemAsmOperand : AsmOperandClass {
243 let SuperClasses = [X86MemAsmOperand];
245 class X86MemOperand<string printMethod> : Operand<iPTR> {
246 let PrintMethod = printMethod;
247 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
248 let ParserMatchClass = X86MemAsmOperand;
251 def opaque32mem : X86MemOperand<"printopaquemem">;
252 def opaque48mem : X86MemOperand<"printopaquemem">;
253 def opaque80mem : X86MemOperand<"printopaquemem">;
254 def opaque512mem : X86MemOperand<"printopaquemem">;
256 def i8mem : X86MemOperand<"printi8mem">;
257 def i16mem : X86MemOperand<"printi16mem">;
258 def i32mem : X86MemOperand<"printi32mem">;
259 def i64mem : X86MemOperand<"printi64mem">;
260 def i128mem : X86MemOperand<"printi128mem">;
261 def i256mem : X86MemOperand<"printi256mem">;
262 def f32mem : X86MemOperand<"printf32mem">;
263 def f64mem : X86MemOperand<"printf64mem">;
264 def f80mem : X86MemOperand<"printf80mem">;
265 def f128mem : X86MemOperand<"printf128mem">;
266 def f256mem : X86MemOperand<"printf256mem">;
268 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
269 // plain GR64, so that it doesn't potentially require a REX prefix.
270 def i8mem_NOREX : Operand<i64> {
271 let PrintMethod = "printi8mem";
272 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
273 let ParserMatchClass = X86MemAsmOperand;
276 // GPRs available for tailcall.
277 // It represents GR64_TC or GR64_TCW64.
278 def ptr_rc_tailcall : PointerLikeRegClass<2>;
280 // Special i32mem for addresses of load folding tail calls. These are not
281 // allowed to use callee-saved registers since they must be scheduled
282 // after callee-saved register are popped.
283 def i32mem_TC : Operand<i32> {
284 let PrintMethod = "printi32mem";
285 let MIOperandInfo = (ops GR32_TC, i8imm, GR32_TC, i32imm, i8imm);
286 let ParserMatchClass = X86MemAsmOperand;
289 // Special i64mem for addresses of load folding tail calls. These are not
290 // allowed to use callee-saved registers since they must be scheduled
291 // after callee-saved register are popped.
292 def i64mem_TC : Operand<i64> {
293 let PrintMethod = "printi64mem";
294 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
295 ptr_rc_tailcall, i32imm, i8imm);
296 let ParserMatchClass = X86MemAsmOperand;
299 let ParserMatchClass = X86AbsMemAsmOperand,
300 PrintMethod = "print_pcrel_imm" in {
301 def i32imm_pcrel : Operand<i32>;
302 def i16imm_pcrel : Operand<i16>;
304 def offset8 : Operand<i64>;
305 def offset16 : Operand<i64>;
306 def offset32 : Operand<i64>;
307 def offset64 : Operand<i64>;
309 // Branch targets have OtherVT type and print as pc-relative values.
310 def brtarget : Operand<OtherVT>;
311 def brtarget8 : Operand<OtherVT>;
315 def SSECC : Operand<i8> {
316 let PrintMethod = "printSSECC";
319 class ImmSExtAsmOperandClass : AsmOperandClass {
320 let SuperClasses = [ImmAsmOperand];
321 let RenderMethod = "addImmOperands";
324 // Sign-extended immediate classes. We don't need to define the full lattice
325 // here because there is no instruction with an ambiguity between ImmSExti64i32
328 // The strange ranges come from the fact that the assembler always works with
329 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
330 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
333 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
334 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
335 let Name = "ImmSExti64i32";
338 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
339 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
340 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
341 let Name = "ImmSExti16i8";
342 let SuperClasses = [ImmSExti64i32AsmOperand];
345 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
346 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
347 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
348 let Name = "ImmSExti32i8";
352 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
353 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
354 let Name = "ImmSExti64i8";
355 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
356 ImmSExti64i32AsmOperand];
359 // A couple of more descriptive operand definitions.
360 // 16-bits but only 8 bits are significant.
361 def i16i8imm : Operand<i16> {
362 let ParserMatchClass = ImmSExti16i8AsmOperand;
364 // 32-bits but only 8 bits are significant.
365 def i32i8imm : Operand<i32> {
366 let ParserMatchClass = ImmSExti32i8AsmOperand;
369 // 64-bits but only 32 bits are significant.
370 def i64i32imm : Operand<i64> {
371 let ParserMatchClass = ImmSExti64i32AsmOperand;
374 // 64-bits but only 32 bits are significant, and those bits are treated as being
376 def i64i32imm_pcrel : Operand<i64> {
377 let PrintMethod = "print_pcrel_imm";
378 let ParserMatchClass = X86AbsMemAsmOperand;
381 // 64-bits but only 8 bits are significant.
382 def i64i8imm : Operand<i64> {
383 let ParserMatchClass = ImmSExti64i8AsmOperand;
386 def lea64_32mem : Operand<i32> {
387 let PrintMethod = "printi32mem";
388 let AsmOperandLowerMethod = "lower_lea64_32mem";
389 let MIOperandInfo = (ops GR32, i8imm, GR32_NOSP, i32imm, i8imm);
390 let ParserMatchClass = X86MemAsmOperand;
394 //===----------------------------------------------------------------------===//
395 // X86 Complex Pattern Definitions.
398 // Define X86 specific addressing mode.
399 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
400 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
401 [add, sub, mul, X86mul_imm, shl, or, frameindex],
403 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
404 [tglobaltlsaddr], []>;
406 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
407 [add, sub, mul, X86mul_imm, shl, or, frameindex,
410 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
411 [tglobaltlsaddr], []>;
413 //===----------------------------------------------------------------------===//
414 // X86 Instruction Predicate Definitions.
415 def HasCMov : Predicate<"Subtarget->hasCMov()">;
416 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
418 def HasMMX : Predicate<"Subtarget->hasMMX()">;
419 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
420 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
421 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
422 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
423 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
424 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
425 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
426 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
427 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
429 def HasAVX : Predicate<"Subtarget->hasAVX()">;
430 def HasXMMInt : Predicate<"Subtarget->hasXMMInt()">;
432 def HasAES : Predicate<"Subtarget->hasAES()">;
433 def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
434 def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;
435 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
436 def FPStackf32 : Predicate<"!Subtarget->hasXMM()">;
437 def FPStackf64 : Predicate<"!Subtarget->hasXMMInt()">;
438 def In32BitMode : Predicate<"!Subtarget->is64Bit()">, AssemblerPredicate;
439 def In64BitMode : Predicate<"Subtarget->is64Bit()">, AssemblerPredicate;
440 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
441 def NotWin64 : Predicate<"!Subtarget->isTargetWin64()">;
442 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
443 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
444 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
445 "TM.getCodeModel() != CodeModel::Kernel">;
446 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
447 "TM.getCodeModel() == CodeModel::Kernel">;
448 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
449 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
450 def OptForSize : Predicate<"OptForSize">;
451 def OptForSpeed : Predicate<"!OptForSize">;
452 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
453 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
455 //===----------------------------------------------------------------------===//
456 // X86 Instruction Format Definitions.
459 include "X86InstrFormats.td"
461 //===----------------------------------------------------------------------===//
462 // Pattern fragments...
465 // X86 specific condition code. These correspond to CondCode in
466 // X86InstrInfo.h. They must be kept in synch.
467 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
468 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
469 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
470 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
471 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
472 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
473 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
474 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
475 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
476 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
477 def X86_COND_NO : PatLeaf<(i8 10)>;
478 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
479 def X86_COND_NS : PatLeaf<(i8 12)>;
480 def X86_COND_O : PatLeaf<(i8 13)>;
481 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
482 def X86_COND_S : PatLeaf<(i8 15)>;
484 def immSext8 : PatLeaf<(imm), [{ return immSext8(N); }]>;
486 def i16immSExt8 : PatLeaf<(i16 immSext8)>;
487 def i32immSExt8 : PatLeaf<(i32 immSext8)>;
488 def i64immSExt8 : PatLeaf<(i64 immSext8)>;
489 def i64immSExt32 : PatLeaf<(i64 imm), [{ return i64immSExt32(N); }]>;
490 def i64immZExt32 : PatLeaf<(i64 imm), [{
491 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
492 // unsignedsign extended field.
493 return (uint64_t)N->getZExtValue() == (uint32_t)N->getZExtValue();
496 def i64immZExt32SExt8 : PatLeaf<(i64 imm), [{
497 uint64_t v = N->getZExtValue();
498 return v == (uint32_t)v && (int32_t)v == (int8_t)v;
501 // Helper fragments for loads.
502 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
503 // known to be 32-bit aligned or better. Ditto for i8 to i16.
504 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
505 LoadSDNode *LD = cast<LoadSDNode>(N);
506 ISD::LoadExtType ExtType = LD->getExtensionType();
507 if (ExtType == ISD::NON_EXTLOAD)
509 if (ExtType == ISD::EXTLOAD)
510 return LD->getAlignment() >= 2 && !LD->isVolatile();
514 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
515 LoadSDNode *LD = cast<LoadSDNode>(N);
516 ISD::LoadExtType ExtType = LD->getExtensionType();
517 if (ExtType == ISD::EXTLOAD)
518 return LD->getAlignment() >= 2 && !LD->isVolatile();
522 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
523 LoadSDNode *LD = cast<LoadSDNode>(N);
524 ISD::LoadExtType ExtType = LD->getExtensionType();
525 if (ExtType == ISD::NON_EXTLOAD)
527 if (ExtType == ISD::EXTLOAD)
528 return LD->getAlignment() >= 4 && !LD->isVolatile();
532 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
533 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
534 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
535 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
536 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
538 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
539 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
540 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
541 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
542 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
543 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
545 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
546 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
547 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
548 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
549 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
550 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
551 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
552 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
553 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
554 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
556 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
557 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
558 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
559 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
560 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
561 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
562 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
563 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
564 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
565 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
568 // An 'and' node with a single use.
569 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
570 return N->hasOneUse();
572 // An 'srl' node with a single use.
573 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
574 return N->hasOneUse();
576 // An 'trunc' node with a single use.
577 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
578 return N->hasOneUse();
581 //===----------------------------------------------------------------------===//
586 let neverHasSideEffects = 1 in {
587 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;
588 def NOOPW : I<0x1f, MRM0m, (outs), (ins i16mem:$zero),
589 "nop{w}\t$zero", []>, TB, OpSize;
590 def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
591 "nop{l}\t$zero", []>, TB;
595 // Constructing a stack frame.
596 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
597 "enter\t$len, $lvl", []>;
599 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
600 def LEAVE : I<0xC9, RawFrm,
601 (outs), (ins), "leave", []>, Requires<[In32BitMode]>;
603 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
604 def LEAVE64 : I<0xC9, RawFrm,
605 (outs), (ins), "leave", []>, Requires<[In64BitMode]>;
607 //===----------------------------------------------------------------------===//
608 // Miscellaneous Instructions.
611 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
613 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
615 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
616 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", []>,
618 def POP16rmm: I<0x8F, MRM0m, (outs i16mem:$dst), (ins), "pop{w}\t$dst", []>,
620 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", []>;
621 def POP32rmm: I<0x8F, MRM0m, (outs i32mem:$dst), (ins), "pop{l}\t$dst", []>;
623 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", []>, OpSize;
624 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", []>,
625 Requires<[In32BitMode]>;
628 let mayStore = 1 in {
629 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
631 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
632 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[]>,
634 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[]>,
636 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[]>;
637 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[]>;
639 def PUSHi8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
640 "push{l}\t$imm", []>;
641 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
642 "push{w}\t$imm", []>, OpSize;
643 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
644 "push{l}\t$imm", []>;
646 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", []>, OpSize;
647 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", []>,
648 Requires<[In32BitMode]>;
653 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
655 def POP64r : I<0x58, AddRegFrm,
656 (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
657 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", []>;
658 def POP64rmm: I<0x8F, MRM0m, (outs i64mem:$dst), (ins), "pop{q}\t$dst", []>;
660 let mayStore = 1 in {
661 def PUSH64r : I<0x50, AddRegFrm,
662 (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
663 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", []>;
664 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", []>;
668 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1 in {
669 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i8imm:$imm),
670 "push{q}\t$imm", []>;
671 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
672 "push{q}\t$imm", []>;
673 def PUSH64i32 : Ii32<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
674 "push{q}\t$imm", []>;
677 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
678 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", []>,
679 Requires<[In64BitMode]>;
680 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
681 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", []>,
682 Requires<[In64BitMode]>;
686 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
687 mayLoad=1, neverHasSideEffects=1 in {
688 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popa{l}", []>,
689 Requires<[In32BitMode]>;
691 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
692 mayStore=1, neverHasSideEffects=1 in {
693 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pusha{l}", []>,
694 Requires<[In32BitMode]>;
697 let Constraints = "$src = $dst" in { // GR32 = bswap GR32
698 def BSWAP32r : I<0xC8, AddRegFrm,
699 (outs GR32:$dst), (ins GR32:$src),
701 [(set GR32:$dst, (bswap GR32:$src))]>, TB;
703 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
705 [(set GR64:$dst, (bswap GR64:$src))]>, TB;
706 } // Constraints = "$src = $dst"
708 // Bit scan instructions.
709 let Defs = [EFLAGS] in {
710 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
711 "bsf{w}\t{$src, $dst|$dst, $src}",
712 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))]>, TB, OpSize;
713 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
714 "bsf{w}\t{$src, $dst|$dst, $src}",
715 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))]>, TB,
717 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
718 "bsf{l}\t{$src, $dst|$dst, $src}",
719 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))]>, TB;
720 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
721 "bsf{l}\t{$src, $dst|$dst, $src}",
722 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))]>, TB;
723 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
724 "bsf{q}\t{$src, $dst|$dst, $src}",
725 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))]>, TB;
726 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
727 "bsf{q}\t{$src, $dst|$dst, $src}",
728 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))]>, TB;
730 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
731 "bsr{w}\t{$src, $dst|$dst, $src}",
732 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))]>, TB, OpSize;
733 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
734 "bsr{w}\t{$src, $dst|$dst, $src}",
735 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))]>, TB,
737 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
738 "bsr{l}\t{$src, $dst|$dst, $src}",
739 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))]>, TB;
740 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
741 "bsr{l}\t{$src, $dst|$dst, $src}",
742 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))]>, TB;
743 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
744 "bsr{q}\t{$src, $dst|$dst, $src}",
745 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))]>, TB;
746 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
747 "bsr{q}\t{$src, $dst|$dst, $src}",
748 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))]>, TB;
752 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
753 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
754 def MOVSB : I<0xA4, RawFrm, (outs), (ins), "{movsb}", []>;
755 def MOVSW : I<0xA5, RawFrm, (outs), (ins), "{movsw}", []>, OpSize;
756 def MOVSD : I<0xA5, RawFrm, (outs), (ins), "{movsl|movsd}", []>;
757 def MOVSQ : RI<0xA5, RawFrm, (outs), (ins), "movsq", []>;
760 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
761 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
762 def STOSB : I<0xAA, RawFrm, (outs), (ins), "{stosb}", []>;
763 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
764 def STOSW : I<0xAB, RawFrm, (outs), (ins), "{stosw}", []>, OpSize;
765 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
766 def STOSD : I<0xAB, RawFrm, (outs), (ins), "{stosl|stosd}", []>;
767 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
768 def STOSQ : RI<0xAB, RawFrm, (outs), (ins), "stosq", []>;
770 def SCAS8 : I<0xAE, RawFrm, (outs), (ins), "scas{b}", []>;
771 def SCAS16 : I<0xAF, RawFrm, (outs), (ins), "scas{w}", []>, OpSize;
772 def SCAS32 : I<0xAF, RawFrm, (outs), (ins), "scas{l}", []>;
773 def SCAS64 : RI<0xAF, RawFrm, (outs), (ins), "scasq", []>;
775 def CMPS8 : I<0xA6, RawFrm, (outs), (ins), "cmps{b}", []>;
776 def CMPS16 : I<0xA7, RawFrm, (outs), (ins), "cmps{w}", []>, OpSize;
777 def CMPS32 : I<0xA7, RawFrm, (outs), (ins), "cmps{l}", []>;
778 def CMPS64 : RI<0xA7, RawFrm, (outs), (ins), "cmpsq", []>;
781 //===----------------------------------------------------------------------===//
782 // Move Instructions.
785 let neverHasSideEffects = 1 in {
786 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
787 "mov{b}\t{$src, $dst|$dst, $src}", []>;
788 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
789 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
790 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
791 "mov{l}\t{$src, $dst|$dst, $src}", []>;
792 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
793 "mov{q}\t{$src, $dst|$dst, $src}", []>;
795 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
796 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
797 "mov{b}\t{$src, $dst|$dst, $src}",
798 [(set GR8:$dst, imm:$src)]>;
799 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
800 "mov{w}\t{$src, $dst|$dst, $src}",
801 [(set GR16:$dst, imm:$src)]>, OpSize;
802 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
803 "mov{l}\t{$src, $dst|$dst, $src}",
804 [(set GR32:$dst, imm:$src)]>;
805 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
806 "movabs{q}\t{$src, $dst|$dst, $src}",
807 [(set GR64:$dst, imm:$src)]>;
808 def MOV64ri32 : RIi32<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
809 "mov{q}\t{$src, $dst|$dst, $src}",
810 [(set GR64:$dst, i64immSExt32:$src)]>;
813 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
814 "mov{b}\t{$src, $dst|$dst, $src}",
815 [(store (i8 imm:$src), addr:$dst)]>;
816 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
817 "mov{w}\t{$src, $dst|$dst, $src}",
818 [(store (i16 imm:$src), addr:$dst)]>, OpSize;
819 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
820 "mov{l}\t{$src, $dst|$dst, $src}",
821 [(store (i32 imm:$src), addr:$dst)]>;
822 def MOV64mi32 : RIi32<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
823 "mov{q}\t{$src, $dst|$dst, $src}",
824 [(store i64immSExt32:$src, addr:$dst)]>;
826 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
827 /// 32-bit offset from the PC. These are only valid in x86-32 mode.
828 def MOV8o8a : Ii32 <0xA0, RawFrm, (outs), (ins offset8:$src),
829 "mov{b}\t{$src, %al|%al, $src}", []>,
830 Requires<[In32BitMode]>;
831 def MOV16o16a : Ii32 <0xA1, RawFrm, (outs), (ins offset16:$src),
832 "mov{w}\t{$src, %ax|%ax, $src}", []>, OpSize,
833 Requires<[In32BitMode]>;
834 def MOV32o32a : Ii32 <0xA1, RawFrm, (outs), (ins offset32:$src),
835 "mov{l}\t{$src, %eax|%eax, $src}", []>,
836 Requires<[In32BitMode]>;
837 def MOV8ao8 : Ii32 <0xA2, RawFrm, (outs offset8:$dst), (ins),
838 "mov{b}\t{%al, $dst|$dst, %al}", []>,
839 Requires<[In32BitMode]>;
840 def MOV16ao16 : Ii32 <0xA3, RawFrm, (outs offset16:$dst), (ins),
841 "mov{w}\t{%ax, $dst|$dst, %ax}", []>, OpSize,
842 Requires<[In32BitMode]>;
843 def MOV32ao32 : Ii32 <0xA3, RawFrm, (outs offset32:$dst), (ins),
844 "mov{l}\t{%eax, $dst|$dst, %eax}", []>,
845 Requires<[In32BitMode]>;
847 // FIXME: These definitions are utterly broken
848 // Just leave them commented out for now because they're useless outside
849 // of the large code model, and most compilers won't generate the instructions
852 def MOV64o8a : RIi8<0xA0, RawFrm, (outs), (ins offset8:$src),
853 "mov{q}\t{$src, %rax|%rax, $src}", []>;
854 def MOV64o64a : RIi32<0xA1, RawFrm, (outs), (ins offset64:$src),
855 "mov{q}\t{$src, %rax|%rax, $src}", []>;
856 def MOV64ao8 : RIi8<0xA2, RawFrm, (outs offset8:$dst), (ins),
857 "mov{q}\t{%rax, $dst|$dst, %rax}", []>;
858 def MOV64ao64 : RIi32<0xA3, RawFrm, (outs offset64:$dst), (ins),
859 "mov{q}\t{%rax, $dst|$dst, %rax}", []>;
863 let isCodeGenOnly = 1 in {
864 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
865 "mov{b}\t{$src, $dst|$dst, $src}", []>;
866 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
867 "mov{w}\t{$src, $dst|$dst, $src}", []>, OpSize;
868 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
869 "mov{l}\t{$src, $dst|$dst, $src}", []>;
870 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
871 "mov{q}\t{$src, $dst|$dst, $src}", []>;
874 let canFoldAsLoad = 1, isReMaterializable = 1 in {
875 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
876 "mov{b}\t{$src, $dst|$dst, $src}",
877 [(set GR8:$dst, (loadi8 addr:$src))]>;
878 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
879 "mov{w}\t{$src, $dst|$dst, $src}",
880 [(set GR16:$dst, (loadi16 addr:$src))]>, OpSize;
881 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
882 "mov{l}\t{$src, $dst|$dst, $src}",
883 [(set GR32:$dst, (loadi32 addr:$src))]>;
884 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
885 "mov{q}\t{$src, $dst|$dst, $src}",
886 [(set GR64:$dst, (load addr:$src))]>;
889 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
890 "mov{b}\t{$src, $dst|$dst, $src}",
891 [(store GR8:$src, addr:$dst)]>;
892 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
893 "mov{w}\t{$src, $dst|$dst, $src}",
894 [(store GR16:$src, addr:$dst)]>, OpSize;
895 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
896 "mov{l}\t{$src, $dst|$dst, $src}",
897 [(store GR32:$src, addr:$dst)]>;
898 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
899 "mov{q}\t{$src, $dst|$dst, $src}",
900 [(store GR64:$src, addr:$dst)]>;
902 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
903 // that they can be used for copying and storing h registers, which can't be
904 // encoded when a REX prefix is present.
905 let isCodeGenOnly = 1 in {
906 let neverHasSideEffects = 1 in
907 def MOV8rr_NOREX : I<0x88, MRMDestReg,
908 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
909 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
911 def MOV8mr_NOREX : I<0x88, MRMDestMem,
912 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
913 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
915 canFoldAsLoad = 1, isReMaterializable = 1 in
916 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
917 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
918 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", []>;
922 // Condition code ops, incl. set if equal/not equal/...
923 let Defs = [EFLAGS], Uses = [AH], neverHasSideEffects = 1 in
924 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf", []>; // flags = AH
925 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
926 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", []>; // AH = flags
929 //===----------------------------------------------------------------------===//
930 // Bit tests instructions: BT, BTS, BTR, BTC.
932 let Defs = [EFLAGS] in {
933 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
934 "bt{w}\t{$src2, $src1|$src1, $src2}",
935 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))]>, OpSize, TB;
936 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
937 "bt{l}\t{$src2, $src1|$src1, $src2}",
938 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))]>, TB;
939 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
940 "bt{q}\t{$src2, $src1|$src1, $src2}",
941 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))]>, TB;
943 // Unlike with the register+register form, the memory+register form of the
944 // bt instruction does not ignore the high bits of the index. From ISel's
945 // perspective, this is pretty bizarre. Make these instructions disassembly
948 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
949 "bt{w}\t{$src2, $src1|$src1, $src2}",
950 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
951 // (implicit EFLAGS)]
953 >, OpSize, TB, Requires<[FastBTMem]>;
954 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
955 "bt{l}\t{$src2, $src1|$src1, $src2}",
956 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
957 // (implicit EFLAGS)]
959 >, TB, Requires<[FastBTMem]>;
960 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
961 "bt{q}\t{$src2, $src1|$src1, $src2}",
962 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
963 // (implicit EFLAGS)]
967 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
968 "bt{w}\t{$src2, $src1|$src1, $src2}",
969 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))]>,
971 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
972 "bt{l}\t{$src2, $src1|$src1, $src2}",
973 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))]>, TB;
974 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
975 "bt{q}\t{$src2, $src1|$src1, $src2}",
976 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))]>, TB;
978 // Note that these instructions don't need FastBTMem because that
979 // only applies when the other operand is in a register. When it's
980 // an immediate, bt is still fast.
981 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
982 "bt{w}\t{$src2, $src1|$src1, $src2}",
983 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
985 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
986 "bt{l}\t{$src2, $src1|$src1, $src2}",
987 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
989 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
990 "bt{q}\t{$src2, $src1|$src1, $src2}",
991 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
992 i64immSExt8:$src2))]>, TB;
995 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
996 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
997 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
998 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
999 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1000 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1001 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1002 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1003 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1004 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1005 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1006 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1007 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1008 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1009 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1010 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1011 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1012 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1013 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1014 "btc{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1015 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1016 "btc{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1017 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1018 "btc{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1020 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1021 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1022 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1023 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1024 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1025 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1026 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1027 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1028 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1029 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1030 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1031 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1032 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1033 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1034 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1035 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1036 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1037 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1038 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1039 "btr{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1040 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1041 "btr{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1042 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1043 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1045 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1046 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1047 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1048 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1049 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1050 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1051 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1052 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1053 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1054 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1055 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1056 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1057 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1058 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1059 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1060 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1061 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1062 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1063 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1064 "bts{w}\t{$src2, $src1|$src1, $src2}", []>, OpSize, TB;
1065 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1066 "bts{l}\t{$src2, $src1|$src1, $src2}", []>, TB;
1067 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1068 "bts{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1069 } // Defs = [EFLAGS]
1072 //===----------------------------------------------------------------------===//
1077 // Atomic swap. These are just normal xchg instructions. But since a memory
1078 // operand is referenced, the atomicity is ensured.
1079 let Constraints = "$val = $dst" in {
1080 def XCHG8rm : I<0x86, MRMSrcMem, (outs GR8:$dst), (ins GR8:$val, i8mem:$ptr),
1081 "xchg{b}\t{$val, $ptr|$ptr, $val}",
1082 [(set GR8:$dst, (atomic_swap_8 addr:$ptr, GR8:$val))]>;
1083 def XCHG16rm : I<0x87, MRMSrcMem, (outs GR16:$dst),(ins GR16:$val, i16mem:$ptr),
1084 "xchg{w}\t{$val, $ptr|$ptr, $val}",
1085 [(set GR16:$dst, (atomic_swap_16 addr:$ptr, GR16:$val))]>,
1087 def XCHG32rm : I<0x87, MRMSrcMem, (outs GR32:$dst),(ins GR32:$val, i32mem:$ptr),
1088 "xchg{l}\t{$val, $ptr|$ptr, $val}",
1089 [(set GR32:$dst, (atomic_swap_32 addr:$ptr, GR32:$val))]>;
1090 def XCHG64rm : RI<0x87, MRMSrcMem, (outs GR64:$dst),(ins GR64:$val,i64mem:$ptr),
1091 "xchg{q}\t{$val, $ptr|$ptr, $val}",
1092 [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))]>;
1094 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1095 "xchg{b}\t{$val, $src|$src, $val}", []>;
1096 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1097 "xchg{w}\t{$val, $src|$src, $val}", []>, OpSize;
1098 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1099 "xchg{l}\t{$val, $src|$src, $val}", []>;
1100 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1101 "xchg{q}\t{$val, $src|$src, $val}", []>;
1104 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1105 "xchg{w}\t{$src, %ax|%ax, $src}", []>, OpSize;
1106 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1107 "xchg{l}\t{$src, %eax|%eax, $src}", []>;
1108 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1109 "xchg{q}\t{$src, %rax|%rax, $src}", []>;
1113 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1114 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1115 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1116 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1117 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1118 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1119 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1120 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1122 let mayLoad = 1, mayStore = 1 in {
1123 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1124 "xadd{b}\t{$src, $dst|$dst, $src}", []>, TB;
1125 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1126 "xadd{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1127 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1128 "xadd{l}\t{$src, $dst|$dst, $src}", []>, TB;
1129 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1130 "xadd{q}\t{$src, $dst|$dst, $src}", []>, TB;
1134 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1135 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1136 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1137 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1138 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1139 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1140 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1141 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1143 let mayLoad = 1, mayStore = 1 in {
1144 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1145 "cmpxchg{b}\t{$src, $dst|$dst, $src}", []>, TB;
1146 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1147 "cmpxchg{w}\t{$src, $dst|$dst, $src}", []>, TB, OpSize;
1148 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1149 "cmpxchg{l}\t{$src, $dst|$dst, $src}", []>, TB;
1150 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1151 "cmpxchg{q}\t{$src, $dst|$dst, $src}", []>, TB;
1154 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1155 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1156 "cmpxchg8b\t$dst", []>, TB;
1158 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1159 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1160 "cmpxchg16b\t$dst", []>, TB;
1164 // Lock instruction prefix
1165 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1167 // Rex64 instruction prefix
1168 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>;
1170 // Data16 instruction prefix
1171 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1173 // Repeat string operation instruction prefixes
1174 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1175 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1176 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1177 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1178 // Repeat while not equal (used with CMPS and SCAS)
1179 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1183 // String manipulation instructions
1184 def LODSB : I<0xAC, RawFrm, (outs), (ins), "lodsb", []>;
1185 def LODSW : I<0xAD, RawFrm, (outs), (ins), "lodsw", []>, OpSize;
1186 def LODSD : I<0xAD, RawFrm, (outs), (ins), "lods{l|d}", []>;
1187 def LODSQ : RI<0xAD, RawFrm, (outs), (ins), "lodsq", []>;
1189 def OUTSB : I<0x6E, RawFrm, (outs), (ins), "outsb", []>;
1190 def OUTSW : I<0x6F, RawFrm, (outs), (ins), "outsw", []>, OpSize;
1191 def OUTSD : I<0x6F, RawFrm, (outs), (ins), "outs{l|d}", []>;
1194 // Flag instructions
1195 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", []>;
1196 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", []>;
1197 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", []>;
1198 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", []>;
1199 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", []>;
1200 def STD : I<0xFD, RawFrm, (outs), (ins), "std", []>;
1201 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", []>;
1203 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", []>, TB;
1205 // Table lookup instructions
1206 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", []>;
1208 // ASCII Adjust After Addition
1209 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1210 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", []>, Requires<[In32BitMode]>;
1212 // ASCII Adjust AX Before Division
1213 // sets AL, AH and EFLAGS and uses AL and AH
1214 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1215 "aad\t$src", []>, Requires<[In32BitMode]>;
1217 // ASCII Adjust AX After Multiply
1218 // sets AL, AH and EFLAGS and uses AL
1219 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1220 "aam\t$src", []>, Requires<[In32BitMode]>;
1222 // ASCII Adjust AL After Subtraction - sets
1223 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1224 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", []>, Requires<[In32BitMode]>;
1226 // Decimal Adjust AL after Addition
1227 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1228 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", []>, Requires<[In32BitMode]>;
1230 // Decimal Adjust AL after Subtraction
1231 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1232 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", []>, Requires<[In32BitMode]>;
1234 // Check Array Index Against Bounds
1235 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1236 "bound\t{$src, $dst|$dst, $src}", []>, OpSize,
1237 Requires<[In32BitMode]>;
1238 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1239 "bound\t{$src, $dst|$dst, $src}", []>,
1240 Requires<[In32BitMode]>;
1242 // Adjust RPL Field of Segment Selector
1243 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$src), (ins GR16:$dst),
1244 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1245 def ARPL16mr : I<0x63, MRMSrcMem, (outs GR16:$src), (ins i16mem:$dst),
1246 "arpl\t{$src, $dst|$dst, $src}", []>, Requires<[In32BitMode]>;
1248 //===----------------------------------------------------------------------===//
1250 //===----------------------------------------------------------------------===//
1252 include "X86InstrArithmetic.td"
1253 include "X86InstrCMovSetCC.td"
1254 include "X86InstrExtension.td"
1255 include "X86InstrControl.td"
1256 include "X86InstrShiftRotate.td"
1258 // X87 Floating Point Stack.
1259 include "X86InstrFPStack.td"
1261 // SIMD support (SSE, MMX and AVX)
1262 include "X86InstrFragmentsSIMD.td"
1264 // FMA - Fused Multiply-Add support (requires FMA)
1265 include "X86InstrFMA.td"
1267 // SSE, MMX and 3DNow! vector support.
1268 include "X86InstrSSE.td"
1269 include "X86InstrMMX.td"
1270 include "X86Instr3DNow.td"
1272 include "X86InstrVMX.td"
1274 // System instructions.
1275 include "X86InstrSystem.td"
1277 // Compiler Pseudo Instructions and Pat Patterns
1278 include "X86InstrCompiler.td"
1280 //===----------------------------------------------------------------------===//
1281 // Assembler Mnemonic Aliases
1282 //===----------------------------------------------------------------------===//
1284 def : MnemonicAlias<"call", "calll">, Requires<[In32BitMode]>;
1285 def : MnemonicAlias<"call", "callq">, Requires<[In64BitMode]>;
1287 def : MnemonicAlias<"cbw", "cbtw">;
1288 def : MnemonicAlias<"cwd", "cwtd">;
1289 def : MnemonicAlias<"cdq", "cltd">;
1290 def : MnemonicAlias<"cwde", "cwtl">;
1291 def : MnemonicAlias<"cdqe", "cltq">;
1293 // lret maps to lretl, it is not ambiguous with lretq.
1294 def : MnemonicAlias<"lret", "lretl">;
1296 def : MnemonicAlias<"leavel", "leave">, Requires<[In32BitMode]>;
1297 def : MnemonicAlias<"leaveq", "leave">, Requires<[In64BitMode]>;
1299 def : MnemonicAlias<"loopz", "loope">;
1300 def : MnemonicAlias<"loopnz", "loopne">;
1302 def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
1303 def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;
1304 def : MnemonicAlias<"popf", "popfl">, Requires<[In32BitMode]>;
1305 def : MnemonicAlias<"popf", "popfq">, Requires<[In64BitMode]>;
1306 def : MnemonicAlias<"popfd", "popfl">;
1308 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
1309 // all modes. However: "push (addr)" and "push $42" should default to
1310 // pushl/pushq depending on the current mode. Similar for "pop %bx"
1311 def : MnemonicAlias<"push", "pushl">, Requires<[In32BitMode]>;
1312 def : MnemonicAlias<"push", "pushq">, Requires<[In64BitMode]>;
1313 def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>;
1314 def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>;
1315 def : MnemonicAlias<"pushfd", "pushfl">;
1317 def : MnemonicAlias<"repe", "rep">;
1318 def : MnemonicAlias<"repz", "rep">;
1319 def : MnemonicAlias<"repnz", "repne">;
1321 def : MnemonicAlias<"retl", "ret">, Requires<[In32BitMode]>;
1322 def : MnemonicAlias<"retq", "ret">, Requires<[In64BitMode]>;
1324 def : MnemonicAlias<"salb", "shlb">;
1325 def : MnemonicAlias<"salw", "shlw">;
1326 def : MnemonicAlias<"sall", "shll">;
1327 def : MnemonicAlias<"salq", "shlq">;
1329 def : MnemonicAlias<"smovb", "movsb">;
1330 def : MnemonicAlias<"smovw", "movsw">;
1331 def : MnemonicAlias<"smovl", "movsl">;
1332 def : MnemonicAlias<"smovq", "movsq">;
1334 def : MnemonicAlias<"ud2a", "ud2">;
1335 def : MnemonicAlias<"verrw", "verr">;
1337 // System instruction aliases.
1338 def : MnemonicAlias<"iret", "iretl">;
1339 def : MnemonicAlias<"sysret", "sysretl">;
1341 def : MnemonicAlias<"lgdtl", "lgdt">, Requires<[In32BitMode]>;
1342 def : MnemonicAlias<"lgdtq", "lgdt">, Requires<[In64BitMode]>;
1343 def : MnemonicAlias<"lidtl", "lidt">, Requires<[In32BitMode]>;
1344 def : MnemonicAlias<"lidtq", "lidt">, Requires<[In64BitMode]>;
1345 def : MnemonicAlias<"sgdtl", "sgdt">, Requires<[In32BitMode]>;
1346 def : MnemonicAlias<"sgdtq", "sgdt">, Requires<[In64BitMode]>;
1347 def : MnemonicAlias<"sidtl", "sidt">, Requires<[In32BitMode]>;
1348 def : MnemonicAlias<"sidtq", "sidt">, Requires<[In64BitMode]>;
1351 // Floating point stack aliases.
1352 def : MnemonicAlias<"fcmovz", "fcmove">;
1353 def : MnemonicAlias<"fcmova", "fcmovnbe">;
1354 def : MnemonicAlias<"fcmovnae", "fcmovb">;
1355 def : MnemonicAlias<"fcmovna", "fcmovbe">;
1356 def : MnemonicAlias<"fcmovae", "fcmovnb">;
1357 def : MnemonicAlias<"fcomip", "fcompi">;
1358 def : MnemonicAlias<"fildq", "fildll">;
1359 def : MnemonicAlias<"fldcww", "fldcw">;
1360 def : MnemonicAlias<"fnstcww", "fnstcw">;
1361 def : MnemonicAlias<"fnstsww", "fnstsw">;
1362 def : MnemonicAlias<"fucomip", "fucompi">;
1363 def : MnemonicAlias<"fwait", "wait">;
1366 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
1367 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
1368 !strconcat(Prefix, NewCond, Suffix)>;
1370 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
1371 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
1372 /// example "setz" -> "sete".
1373 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix> {
1374 def C : CondCodeAlias<Prefix, Suffix, "c", "b">; // setc -> setb
1375 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e">; // setz -> sete
1376 def NA : CondCodeAlias<Prefix, Suffix, "na", "be">; // setna -> setbe
1377 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae">; // setnb -> setae
1378 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae">; // setnc -> setae
1379 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le">; // setng -> setle
1380 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge">; // setnl -> setge
1381 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne">; // setnz -> setne
1382 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p">; // setpe -> setp
1383 def PO : CondCodeAlias<Prefix, Suffix, "po", "np">; // setpo -> setnp
1385 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b">; // setnae -> setb
1386 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a">; // setnbe -> seta
1387 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l">; // setnge -> setl
1388 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g">; // setnle -> setg
1391 // Aliases for set<CC>
1392 defm : IntegerCondCodeMnemonicAlias<"set", "">;
1393 // Aliases for j<CC>
1394 defm : IntegerCondCodeMnemonicAlias<"j", "">;
1395 // Aliases for cmov<CC>{w,l,q}
1396 defm : IntegerCondCodeMnemonicAlias<"cmov", "w">;
1397 defm : IntegerCondCodeMnemonicAlias<"cmov", "l">;
1398 defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
1401 //===----------------------------------------------------------------------===//
1402 // Assembler Instruction Aliases
1403 //===----------------------------------------------------------------------===//
1405 // aad/aam default to base 10 if no operand is specified.
1406 def : InstAlias<"aad", (AAD8i8 10)>;
1407 def : InstAlias<"aam", (AAM8i8 10)>;
1409 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
1410 def : InstAlias<"bt $imm, $mem", (BT32mi8 i32mem:$mem, i32i8imm:$imm)>;
1413 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
1414 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
1415 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
1416 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
1418 // div and idiv aliases for explicit A register.
1419 def : InstAlias<"divb $src, %al", (DIV8r GR8 :$src)>;
1420 def : InstAlias<"divw $src, %ax", (DIV16r GR16:$src)>;
1421 def : InstAlias<"divl $src, %eax", (DIV32r GR32:$src)>;
1422 def : InstAlias<"divq $src, %rax", (DIV64r GR64:$src)>;
1423 def : InstAlias<"divb $src, %al", (DIV8m i8mem :$src)>;
1424 def : InstAlias<"divw $src, %ax", (DIV16m i16mem:$src)>;
1425 def : InstAlias<"divl $src, %eax", (DIV32m i32mem:$src)>;
1426 def : InstAlias<"divq $src, %rax", (DIV64m i64mem:$src)>;
1427 def : InstAlias<"idivb $src, %al", (IDIV8r GR8 :$src)>;
1428 def : InstAlias<"idivw $src, %ax", (IDIV16r GR16:$src)>;
1429 def : InstAlias<"idivl $src, %eax", (IDIV32r GR32:$src)>;
1430 def : InstAlias<"idivq $src, %rax", (IDIV64r GR64:$src)>;
1431 def : InstAlias<"idivb $src, %al", (IDIV8m i8mem :$src)>;
1432 def : InstAlias<"idivw $src, %ax", (IDIV16m i16mem:$src)>;
1433 def : InstAlias<"idivl $src, %eax", (IDIV32m i32mem:$src)>;
1434 def : InstAlias<"idivq $src, %rax", (IDIV64m i64mem:$src)>;
1438 // Various unary fpstack operations default to operating on on ST1.
1439 // For example, "fxch" -> "fxch %st(1)"
1440 def : InstAlias<"faddp", (ADD_FPrST0 ST1)>;
1441 def : InstAlias<"fsubp", (SUBR_FPrST0 ST1)>;
1442 def : InstAlias<"fsubrp", (SUB_FPrST0 ST1)>;
1443 def : InstAlias<"fmulp", (MUL_FPrST0 ST1)>;
1444 def : InstAlias<"fdivp", (DIVR_FPrST0 ST1)>;
1445 def : InstAlias<"fdivrp", (DIV_FPrST0 ST1)>;
1446 def : InstAlias<"fxch", (XCH_F ST1)>;
1447 def : InstAlias<"fcomi", (COM_FIr ST1)>;
1448 def : InstAlias<"fcompi", (COM_FIPr ST1)>;
1449 def : InstAlias<"fucom", (UCOM_Fr ST1)>;
1450 def : InstAlias<"fucomp", (UCOM_FPr ST1)>;
1451 def : InstAlias<"fucomi", (UCOM_FIr ST1)>;
1452 def : InstAlias<"fucompi", (UCOM_FIPr ST1)>;
1454 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
1455 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
1456 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
1458 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst> {
1459 def : InstAlias<!strconcat(Mnemonic, " $op, %st(0)"), (Inst RST:$op)>;
1460 def : InstAlias<!strconcat(Mnemonic, " %st(0), %st(0)"), (Inst ST0)>;
1463 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
1464 defm : FpUnaryAlias<"faddp", ADD_FPrST0>;
1465 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
1466 defm : FpUnaryAlias<"fsubp", SUBR_FPrST0>;
1467 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
1468 defm : FpUnaryAlias<"fsubrp", SUB_FPrST0>;
1469 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
1470 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
1471 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
1472 defm : FpUnaryAlias<"fdivp", DIVR_FPrST0>;
1473 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
1474 defm : FpUnaryAlias<"fdivrp", DIV_FPrST0>;
1475 defm : FpUnaryAlias<"fcomi", COM_FIr>;
1476 defm : FpUnaryAlias<"fucomi", UCOM_FIr>;
1477 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
1478 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
1481 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
1482 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
1483 // solely because gas supports it.
1484 def : InstAlias<"faddp %st(0), $op", (ADD_FPrST0 RST:$op)>;
1485 def : InstAlias<"fmulp %st(0), $op", (MUL_FPrST0 RST:$op)>;
1486 def : InstAlias<"fsubrp %st(0), $op", (SUB_FPrST0 RST:$op)>;
1487 def : InstAlias<"fdivp %st(0), $op", (DIVR_FPrST0 RST:$op)>;
1488 def : InstAlias<"fdivrp %st(0), $op", (DIV_FPrST0 RST:$op)>;
1490 // We accept "fnstsw %eax" even though it only writes %ax.
1491 def : InstAlias<"fnstsw %eax", (FNSTSW8r)>;
1492 def : InstAlias<"fnstsw %al" , (FNSTSW8r)>;
1493 def : InstAlias<"fnstsw" , (FNSTSW8r)>;
1495 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
1496 // this is compatible with what GAS does.
1497 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1498 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1499 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst)>;
1500 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst)>;
1502 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
1503 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
1504 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
1505 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
1506 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
1507 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
1508 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
1510 // inb %dx -> inb %al, %dx
1511 def : InstAlias<"inb %dx", (IN8rr)>;
1512 def : InstAlias<"inw %dx", (IN16rr)>;
1513 def : InstAlias<"inl %dx", (IN32rr)>;
1514 def : InstAlias<"inb $port", (IN8ri i8imm:$port)>;
1515 def : InstAlias<"inw $port", (IN16ri i8imm:$port)>;
1516 def : InstAlias<"inl $port", (IN32ri i8imm:$port)>;
1519 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
1520 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1521 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1522 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
1523 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
1524 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
1525 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
1527 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
1528 // the move. All segment/mem forms are equivalent, this has the shortest
1530 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem)>;
1531 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg)>;
1533 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
1534 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm)>;
1536 // Match 'movq GR64, MMX' as an alias for movd.
1537 def : InstAlias<"movq $src, $dst", (MMX_MOVD64to64rr VR64:$dst, GR64:$src)>;
1538 def : InstAlias<"movq $src, $dst", (MMX_MOVD64from64rr GR64:$dst, VR64:$src)>;
1540 // movsd with no operands (as opposed to the SSE scalar move of a double) is an
1541 // alias for movsl. (as in rep; movsd)
1542 def : InstAlias<"movsd", (MOVSD)>;
1545 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8W GR16:$dst, GR8:$src)>;
1546 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8W GR16:$dst, i8mem:$src)>;
1547 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src)>;
1548 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src)>;
1549 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src)>;
1550 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src)>;
1551 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src)>;
1554 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8W GR16:$dst, GR8:$src)>;
1555 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8W GR16:$dst, i8mem:$src)>;
1556 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src)>;
1557 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src)>;
1558 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src)>;
1559 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src)>;
1560 // Note: No GR32->GR64 movzx form.
1562 // outb %dx -> outb %al, %dx
1563 def : InstAlias<"outb %dx", (OUT8rr)>;
1564 def : InstAlias<"outw %dx", (OUT16rr)>;
1565 def : InstAlias<"outl %dx", (OUT32rr)>;
1566 def : InstAlias<"outb $port", (OUT8ir i8imm:$port)>;
1567 def : InstAlias<"outw $port", (OUT16ir i8imm:$port)>;
1568 def : InstAlias<"outl $port", (OUT32ir i8imm:$port)>;
1570 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
1571 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
1572 // errors, since its encoding is the most compact.
1573 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem)>;
1575 // shld/shrd op,op -> shld op, op, 1
1576 def : InstAlias<"shldw $r1, $r2", (SHLD16rri8 GR16:$r1, GR16:$r2, 1)>;
1577 def : InstAlias<"shldl $r1, $r2", (SHLD32rri8 GR32:$r1, GR32:$r2, 1)>;
1578 def : InstAlias<"shldq $r1, $r2", (SHLD64rri8 GR64:$r1, GR64:$r2, 1)>;
1579 def : InstAlias<"shrdw $r1, $r2", (SHRD16rri8 GR16:$r1, GR16:$r2, 1)>;
1580 def : InstAlias<"shrdl $r1, $r2", (SHRD32rri8 GR32:$r1, GR32:$r2, 1)>;
1581 def : InstAlias<"shrdq $r1, $r2", (SHRD64rri8 GR64:$r1, GR64:$r2, 1)>;
1583 def : InstAlias<"shldw $mem, $reg", (SHLD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1584 def : InstAlias<"shldl $mem, $reg", (SHLD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1585 def : InstAlias<"shldq $mem, $reg", (SHLD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1586 def : InstAlias<"shrdw $mem, $reg", (SHRD16mri8 i16mem:$mem, GR16:$reg, 1)>;
1587 def : InstAlias<"shrdl $mem, $reg", (SHRD32mri8 i32mem:$mem, GR32:$reg, 1)>;
1588 def : InstAlias<"shrdq $mem, $reg", (SHRD64mri8 i64mem:$mem, GR64:$reg, 1)>;
1590 /* FIXME: This is disabled because the asm matcher is currently incapable of
1591 * matching a fixed immediate like $1.
1592 // "shl X, $1" is an alias for "shl X".
1593 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
1594 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1595 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
1596 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1597 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
1598 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1599 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
1600 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1601 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
1602 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
1603 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
1604 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
1605 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
1606 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
1607 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
1608 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
1609 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
1612 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
1613 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
1614 defm : ShiftRotateByOneAlias<"rol", "ROL">;
1615 defm : ShiftRotateByOneAlias<"ror", "ROR">;
1618 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
1619 def : InstAlias<"testb $val, $mem", (TEST8rm GR8 :$val, i8mem :$mem)>;
1620 def : InstAlias<"testw $val, $mem", (TEST16rm GR16:$val, i16mem:$mem)>;
1621 def : InstAlias<"testl $val, $mem", (TEST32rm GR32:$val, i32mem:$mem)>;
1622 def : InstAlias<"testq $val, $mem", (TEST64rm GR64:$val, i64mem:$mem)>;
1624 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
1625 def : InstAlias<"xchgb $mem, $val", (XCHG8rm GR8 :$val, i8mem :$mem)>;
1626 def : InstAlias<"xchgw $mem, $val", (XCHG16rm GR16:$val, i16mem:$mem)>;
1627 def : InstAlias<"xchgl $mem, $val", (XCHG32rm GR32:$val, i32mem:$mem)>;
1628 def : InstAlias<"xchgq $mem, $val", (XCHG64rm GR64:$val, i64mem:$mem)>;