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 SDTX86Cmps : SDTypeProfile<1, 3, [SDTCisFP<0>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
27 //def SDTX86Cmpss : SDTypeProfile<1, 3, [SDTCisVT<0, f32>, SDTCisSameAs<1, 2>, SDTCisVT<3, i8>]>;
29 def SDTX86Cmov : SDTypeProfile<1, 4,
30 [SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>,
31 SDTCisVT<3, i8>, SDTCisVT<4, i32>]>;
33 // Unary and binary operator instructions that set EFLAGS as a side-effect.
34 def SDTUnaryArithWithFlags : SDTypeProfile<2, 1,
35 [SDTCisInt<0>, SDTCisVT<1, i32>]>;
37 def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
40 SDTCisInt<0>, SDTCisVT<1, i32>]>;
42 // SDTBinaryArithWithFlagsInOut - RES1, EFLAGS = op LHS, RHS, EFLAGS
43 def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
49 // RES1, RES2, FLAGS = op LHS, RHS
50 def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
54 SDTCisInt<0>, SDTCisVT<1, i32>]>;
55 def SDTX86BrCond : SDTypeProfile<0, 3,
56 [SDTCisVT<0, OtherVT>,
57 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
59 def SDTX86SetCC : SDTypeProfile<1, 2,
61 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
62 def SDTX86SetCC_C : SDTypeProfile<1, 2,
64 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
66 def SDTX86sahf : SDTypeProfile<1, 1, [SDTCisVT<0, i32>, SDTCisVT<1, i8>]>;
68 def SDTX86rdrand : SDTypeProfile<2, 0, [SDTCisInt<0>, SDTCisVT<1, i32>]>;
70 def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
72 def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
74 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
75 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
76 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
78 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
79 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
82 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
84 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
88 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
94 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
96 def SDTX86Void : SDTypeProfile<0, 0, []>;
98 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
100 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
102 def SDT_X86TLSBASEADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
104 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
106 def SDT_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
108 def SDT_X86WIN_FTOL : SDTypeProfile<0, 1, [SDTCisFP<0>]>;
110 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
112 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
114 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
116 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
117 [SDNPHasChain,SDNPSideEffect]>;
118 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
120 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
122 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
126 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
127 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
128 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
129 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
131 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
132 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
134 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
135 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
137 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
138 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
140 def X86sahf : SDNode<"X86ISD::SAHF", SDTX86sahf>;
142 def X86rdrand : SDNode<"X86ISD::RDRAND", SDTX86rdrand,
143 [SDNPHasChain, SDNPSideEffect]>;
145 def X86rdseed : SDNode<"X86ISD::RDSEED", SDTX86rdrand,
146 [SDNPHasChain, SDNPSideEffect]>;
148 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
149 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
150 SDNPMayLoad, SDNPMemOperand]>;
151 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
152 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
153 SDNPMayLoad, SDNPMemOperand]>;
154 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
155 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
156 SDNPMayLoad, SDNPMemOperand]>;
158 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
159 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
161 def X86vastart_save_xmm_regs :
162 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
163 SDT_X86VASTART_SAVE_XMM_REGS,
164 [SDNPHasChain, SDNPVariadic]>;
166 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
167 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
169 def X86callseq_start :
170 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
171 [SDNPHasChain, SDNPOutGlue]>;
173 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
174 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
176 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
177 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
180 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
181 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
182 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
183 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
186 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
187 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
188 def X86rdtscp : SDNode<"X86ISD::RDTSCP_DAG", SDTX86Void,
189 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
190 def X86rdpmc : SDNode<"X86ISD::RDPMC_DAG", SDTX86Void,
191 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
193 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
194 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
196 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
197 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
199 def X86tlsbaseaddr : SDNode<"X86ISD::TLSBASEADDR", SDT_X86TLSBASEADDR,
200 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
202 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
205 def X86eh_sjlj_setjmp : SDNode<"X86ISD::EH_SJLJ_SETJMP",
206 SDTypeProfile<1, 1, [SDTCisInt<0>,
208 [SDNPHasChain, SDNPSideEffect]>;
209 def X86eh_sjlj_longjmp : SDNode<"X86ISD::EH_SJLJ_LONGJMP",
210 SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>,
211 [SDNPHasChain, SDNPSideEffect]>;
213 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
214 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
216 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
218 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
219 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
221 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
223 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
224 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
226 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
227 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
228 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
230 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
232 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
235 def X86bextr : SDNode<"X86ISD::BEXTR", SDTIntBinOp>;
237 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
239 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
240 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
242 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
245 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
246 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
248 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
249 [SDNPHasChain, SDNPOutGlue]>;
251 //===----------------------------------------------------------------------===//
252 // X86 Operand Definitions.
255 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
256 // the index operand of an address, to conform to x86 encoding restrictions.
257 def ptr_rc_nosp : PointerLikeRegClass<1>;
259 // *mem - Operand definitions for the funky X86 addressing mode operands.
261 def X86MemAsmOperand : AsmOperandClass {
264 def X86Mem8AsmOperand : AsmOperandClass {
265 let Name = "Mem8"; let RenderMethod = "addMemOperands";
267 def X86Mem16AsmOperand : AsmOperandClass {
268 let Name = "Mem16"; let RenderMethod = "addMemOperands";
270 def X86Mem32AsmOperand : AsmOperandClass {
271 let Name = "Mem32"; let RenderMethod = "addMemOperands";
273 def X86Mem64AsmOperand : AsmOperandClass {
274 let Name = "Mem64"; let RenderMethod = "addMemOperands";
276 def X86Mem80AsmOperand : AsmOperandClass {
277 let Name = "Mem80"; let RenderMethod = "addMemOperands";
279 def X86Mem128AsmOperand : AsmOperandClass {
280 let Name = "Mem128"; let RenderMethod = "addMemOperands";
282 def X86Mem256AsmOperand : AsmOperandClass {
283 let Name = "Mem256"; let RenderMethod = "addMemOperands";
285 def X86Mem512AsmOperand : AsmOperandClass {
286 let Name = "Mem512"; let RenderMethod = "addMemOperands";
289 // Gather mem operands
290 def X86MemVX32Operand : AsmOperandClass {
291 let Name = "MemVX32"; let RenderMethod = "addMemOperands";
293 def X86MemVY32Operand : AsmOperandClass {
294 let Name = "MemVY32"; let RenderMethod = "addMemOperands";
296 def X86MemVZ32Operand : AsmOperandClass {
297 let Name = "MemVZ32"; let RenderMethod = "addMemOperands";
299 def X86MemVX64Operand : AsmOperandClass {
300 let Name = "MemVX64"; let RenderMethod = "addMemOperands";
302 def X86MemVY64Operand : AsmOperandClass {
303 let Name = "MemVY64"; let RenderMethod = "addMemOperands";
305 def X86MemVZ64Operand : AsmOperandClass {
306 let Name = "MemVZ64"; let RenderMethod = "addMemOperands";
309 def X86AbsMemAsmOperand : AsmOperandClass {
311 let SuperClasses = [X86MemAsmOperand];
313 class X86MemOperand<string printMethod> : Operand<iPTR> {
314 let PrintMethod = printMethod;
315 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
316 let ParserMatchClass = X86MemAsmOperand;
319 let OperandType = "OPERAND_MEMORY" in {
320 def opaque32mem : X86MemOperand<"printopaquemem">;
321 def opaque48mem : X86MemOperand<"printopaquemem">;
322 def opaque80mem : X86MemOperand<"printopaquemem">;
323 def opaque512mem : X86MemOperand<"printopaquemem">;
325 def i8mem : X86MemOperand<"printi8mem"> {
326 let ParserMatchClass = X86Mem8AsmOperand; }
327 def i16mem : X86MemOperand<"printi16mem"> {
328 let ParserMatchClass = X86Mem16AsmOperand; }
329 def i32mem : X86MemOperand<"printi32mem"> {
330 let ParserMatchClass = X86Mem32AsmOperand; }
331 def i64mem : X86MemOperand<"printi64mem"> {
332 let ParserMatchClass = X86Mem64AsmOperand; }
333 def i128mem : X86MemOperand<"printi128mem"> {
334 let ParserMatchClass = X86Mem128AsmOperand; }
335 def i256mem : X86MemOperand<"printi256mem"> {
336 let ParserMatchClass = X86Mem256AsmOperand; }
337 def i512mem : X86MemOperand<"printi512mem"> {
338 let ParserMatchClass = X86Mem512AsmOperand; }
339 def f32mem : X86MemOperand<"printf32mem"> {
340 let ParserMatchClass = X86Mem32AsmOperand; }
341 def f64mem : X86MemOperand<"printf64mem"> {
342 let ParserMatchClass = X86Mem64AsmOperand; }
343 def f80mem : X86MemOperand<"printf80mem"> {
344 let ParserMatchClass = X86Mem80AsmOperand; }
345 def f128mem : X86MemOperand<"printf128mem"> {
346 let ParserMatchClass = X86Mem128AsmOperand; }
347 def f256mem : X86MemOperand<"printf256mem">{
348 let ParserMatchClass = X86Mem256AsmOperand; }
349 def f512mem : X86MemOperand<"printf512mem">{
350 let ParserMatchClass = X86Mem512AsmOperand; }
351 def v512mem : Operand<iPTR> {
352 let PrintMethod = "printf512mem";
353 let MIOperandInfo = (ops ptr_rc, i8imm, VR512, i32imm, i8imm);
354 let ParserMatchClass = X86Mem512AsmOperand; }
356 // Gather mem operands
357 def vx32mem : X86MemOperand<"printi32mem">{
358 let MIOperandInfo = (ops ptr_rc, i8imm, VR128, i32imm, i8imm);
359 let ParserMatchClass = X86MemVX32Operand; }
360 def vy32mem : X86MemOperand<"printi32mem">{
361 let MIOperandInfo = (ops ptr_rc, i8imm, VR256, i32imm, i8imm);
362 let ParserMatchClass = X86MemVY32Operand; }
363 def vx64mem : X86MemOperand<"printi64mem">{
364 let MIOperandInfo = (ops ptr_rc, i8imm, VR128, i32imm, i8imm);
365 let ParserMatchClass = X86MemVX64Operand; }
366 def vy64mem : X86MemOperand<"printi64mem">{
367 let MIOperandInfo = (ops ptr_rc, i8imm, VR256, i32imm, i8imm);
368 let ParserMatchClass = X86MemVY64Operand; }
369 def vy64xmem : X86MemOperand<"printi64mem">{
370 let MIOperandInfo = (ops ptr_rc, i8imm, VR256X, i32imm, i8imm);
371 let ParserMatchClass = X86MemVY64Operand; }
372 def vz32mem : X86MemOperand<"printi32mem">{
373 let MIOperandInfo = (ops ptr_rc, i16imm, VR512, i32imm, i8imm);
374 let ParserMatchClass = X86MemVZ32Operand; }
375 def vz64mem : X86MemOperand<"printi64mem">{
376 let MIOperandInfo = (ops ptr_rc, i8imm, VR512, i32imm, i8imm);
377 let ParserMatchClass = X86MemVZ64Operand; }
380 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
381 // plain GR64, so that it doesn't potentially require a REX prefix.
382 def i8mem_NOREX : Operand<i64> {
383 let PrintMethod = "printi8mem";
384 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
385 let ParserMatchClass = X86Mem8AsmOperand;
386 let OperandType = "OPERAND_MEMORY";
389 // GPRs available for tailcall.
390 // It represents GR32_TC, GR64_TC or GR64_TCW64.
391 def ptr_rc_tailcall : PointerLikeRegClass<2>;
393 // Special i32mem for addresses of load folding tail calls. These are not
394 // allowed to use callee-saved registers since they must be scheduled
395 // after callee-saved register are popped.
396 def i32mem_TC : Operand<i32> {
397 let PrintMethod = "printi32mem";
398 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
400 let ParserMatchClass = X86Mem32AsmOperand;
401 let OperandType = "OPERAND_MEMORY";
404 // Special i64mem for addresses of load folding tail calls. These are not
405 // allowed to use callee-saved registers since they must be scheduled
406 // after callee-saved register are popped.
407 def i64mem_TC : Operand<i64> {
408 let PrintMethod = "printi64mem";
409 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
410 ptr_rc_tailcall, i32imm, i8imm);
411 let ParserMatchClass = X86Mem64AsmOperand;
412 let OperandType = "OPERAND_MEMORY";
415 let OperandType = "OPERAND_PCREL",
416 ParserMatchClass = X86AbsMemAsmOperand,
417 PrintMethod = "printPCRelImm" in {
418 def i32imm_pcrel : Operand<i32>;
419 def i16imm_pcrel : Operand<i16>;
421 // Branch targets have OtherVT type and print as pc-relative values.
422 def brtarget : Operand<OtherVT>;
423 def brtarget8 : Operand<OtherVT>;
427 def X86SrcIdx8Operand : AsmOperandClass {
428 let Name = "SrcIdx8";
429 let RenderMethod = "addSrcIdxOperands";
430 let SuperClasses = [X86Mem8AsmOperand];
432 def X86SrcIdx16Operand : AsmOperandClass {
433 let Name = "SrcIdx16";
434 let RenderMethod = "addSrcIdxOperands";
435 let SuperClasses = [X86Mem16AsmOperand];
437 def X86SrcIdx32Operand : AsmOperandClass {
438 let Name = "SrcIdx32";
439 let RenderMethod = "addSrcIdxOperands";
440 let SuperClasses = [X86Mem32AsmOperand];
442 def X86SrcIdx64Operand : AsmOperandClass {
443 let Name = "SrcIdx64";
444 let RenderMethod = "addSrcIdxOperands";
445 let SuperClasses = [X86Mem64AsmOperand];
447 def X86DstIdx8Operand : AsmOperandClass {
448 let Name = "DstIdx8";
449 let RenderMethod = "addDstIdxOperands";
450 let SuperClasses = [X86Mem8AsmOperand];
452 def X86DstIdx16Operand : AsmOperandClass {
453 let Name = "DstIdx16";
454 let RenderMethod = "addDstIdxOperands";
455 let SuperClasses = [X86Mem16AsmOperand];
457 def X86DstIdx32Operand : AsmOperandClass {
458 let Name = "DstIdx32";
459 let RenderMethod = "addDstIdxOperands";
460 let SuperClasses = [X86Mem32AsmOperand];
462 def X86DstIdx64Operand : AsmOperandClass {
463 let Name = "DstIdx64";
464 let RenderMethod = "addDstIdxOperands";
465 let SuperClasses = [X86Mem64AsmOperand];
467 def X86MemOffs8AsmOperand : AsmOperandClass {
468 let Name = "MemOffs8";
469 let RenderMethod = "addMemOffsOperands";
470 let SuperClasses = [X86Mem8AsmOperand];
472 def X86MemOffs16AsmOperand : AsmOperandClass {
473 let Name = "MemOffs16";
474 let RenderMethod = "addMemOffsOperands";
475 let SuperClasses = [X86Mem16AsmOperand];
477 def X86MemOffs32AsmOperand : AsmOperandClass {
478 let Name = "MemOffs32";
479 let RenderMethod = "addMemOffsOperands";
480 let SuperClasses = [X86Mem32AsmOperand];
482 def X86MemOffs64AsmOperand : AsmOperandClass {
483 let Name = "MemOffs64";
484 let RenderMethod = "addMemOffsOperands";
485 let SuperClasses = [X86Mem64AsmOperand];
487 let OperandType = "OPERAND_MEMORY" in {
488 def srcidx8 : Operand<iPTR> {
489 let ParserMatchClass = X86SrcIdx8Operand;
490 let MIOperandInfo = (ops ptr_rc, i8imm);
491 let PrintMethod = "printSrcIdx8"; }
492 def srcidx16 : Operand<iPTR> {
493 let ParserMatchClass = X86SrcIdx16Operand;
494 let MIOperandInfo = (ops ptr_rc, i8imm);
495 let PrintMethod = "printSrcIdx16"; }
496 def srcidx32 : Operand<iPTR> {
497 let ParserMatchClass = X86SrcIdx32Operand;
498 let MIOperandInfo = (ops ptr_rc, i8imm);
499 let PrintMethod = "printSrcIdx32"; }
500 def srcidx64 : Operand<iPTR> {
501 let ParserMatchClass = X86SrcIdx64Operand;
502 let MIOperandInfo = (ops ptr_rc, i8imm);
503 let PrintMethod = "printSrcIdx64"; }
504 def dstidx8 : Operand<iPTR> {
505 let ParserMatchClass = X86DstIdx8Operand;
506 let MIOperandInfo = (ops ptr_rc);
507 let PrintMethod = "printDstIdx8"; }
508 def dstidx16 : Operand<iPTR> {
509 let ParserMatchClass = X86DstIdx16Operand;
510 let MIOperandInfo = (ops ptr_rc);
511 let PrintMethod = "printDstIdx16"; }
512 def dstidx32 : Operand<iPTR> {
513 let ParserMatchClass = X86DstIdx32Operand;
514 let MIOperandInfo = (ops ptr_rc);
515 let PrintMethod = "printDstIdx32"; }
516 def dstidx64 : Operand<iPTR> {
517 let ParserMatchClass = X86DstIdx64Operand;
518 let MIOperandInfo = (ops ptr_rc);
519 let PrintMethod = "printDstIdx64"; }
520 def offset8 : Operand<iPTR> {
521 let ParserMatchClass = X86MemOffs8AsmOperand;
522 let MIOperandInfo = (ops i64imm, i8imm);
523 let PrintMethod = "printMemOffs8"; }
524 def offset16 : Operand<iPTR> {
525 let ParserMatchClass = X86MemOffs16AsmOperand;
526 let MIOperandInfo = (ops i64imm, i8imm);
527 let PrintMethod = "printMemOffs16"; }
528 def offset32 : Operand<iPTR> {
529 let ParserMatchClass = X86MemOffs32AsmOperand;
530 let MIOperandInfo = (ops i64imm, i8imm);
531 let PrintMethod = "printMemOffs32"; }
532 def offset64 : Operand<iPTR> {
533 let ParserMatchClass = X86MemOffs64AsmOperand;
534 let MIOperandInfo = (ops i64imm, i8imm);
535 let PrintMethod = "printMemOffs64"; }
539 def SSECC : Operand<i8> {
540 let PrintMethod = "printSSECC";
541 let OperandType = "OPERAND_IMMEDIATE";
544 def AVXCC : Operand<i8> {
545 let PrintMethod = "printAVXCC";
546 let OperandType = "OPERAND_IMMEDIATE";
549 class ImmSExtAsmOperandClass : AsmOperandClass {
550 let SuperClasses = [ImmAsmOperand];
551 let RenderMethod = "addImmOperands";
554 class ImmZExtAsmOperandClass : AsmOperandClass {
555 let SuperClasses = [ImmAsmOperand];
556 let RenderMethod = "addImmOperands";
559 def X86GR32orGR64AsmOperand : AsmOperandClass {
560 let Name = "GR32orGR64";
563 def GR32orGR64 : RegisterOperand<GR32> {
564 let ParserMatchClass = X86GR32orGR64AsmOperand;
567 def AVX512RC : Operand<i32> {
568 let PrintMethod = "printRoundingControl";
569 let OperandType = "OPERAND_IMMEDIATE";
571 // Sign-extended immediate classes. We don't need to define the full lattice
572 // here because there is no instruction with an ambiguity between ImmSExti64i32
575 // The strange ranges come from the fact that the assembler always works with
576 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
577 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
580 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
581 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
582 let Name = "ImmSExti64i32";
585 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
586 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
587 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
588 let Name = "ImmSExti16i8";
589 let SuperClasses = [ImmSExti64i32AsmOperand];
592 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
593 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
594 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
595 let Name = "ImmSExti32i8";
599 def ImmZExtu32u8AsmOperand : ImmZExtAsmOperandClass {
600 let Name = "ImmZExtu32u8";
605 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
606 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
607 let Name = "ImmSExti64i8";
608 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
609 ImmSExti64i32AsmOperand];
612 // A couple of more descriptive operand definitions.
613 // 16-bits but only 8 bits are significant.
614 def i16i8imm : Operand<i16> {
615 let ParserMatchClass = ImmSExti16i8AsmOperand;
616 let OperandType = "OPERAND_IMMEDIATE";
618 // 32-bits but only 8 bits are significant.
619 def i32i8imm : Operand<i32> {
620 let ParserMatchClass = ImmSExti32i8AsmOperand;
621 let OperandType = "OPERAND_IMMEDIATE";
623 // 32-bits but only 8 bits are significant, and those 8 bits are unsigned.
624 def u32u8imm : Operand<i32> {
625 let ParserMatchClass = ImmZExtu32u8AsmOperand;
626 let OperandType = "OPERAND_IMMEDIATE";
629 // 64-bits but only 32 bits are significant.
630 def i64i32imm : Operand<i64> {
631 let ParserMatchClass = ImmSExti64i32AsmOperand;
632 let OperandType = "OPERAND_IMMEDIATE";
635 // 64-bits but only 32 bits are significant, and those bits are treated as being
637 def i64i32imm_pcrel : Operand<i64> {
638 let PrintMethod = "printPCRelImm";
639 let ParserMatchClass = X86AbsMemAsmOperand;
640 let OperandType = "OPERAND_PCREL";
643 // 64-bits but only 8 bits are significant.
644 def i64i8imm : Operand<i64> {
645 let ParserMatchClass = ImmSExti64i8AsmOperand;
646 let OperandType = "OPERAND_IMMEDIATE";
649 def lea64_32mem : Operand<i32> {
650 let PrintMethod = "printi32mem";
651 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
652 let ParserMatchClass = X86MemAsmOperand;
655 // Memory operands that use 64-bit pointers in both ILP32 and LP64.
656 def lea64mem : Operand<i64> {
657 let PrintMethod = "printi64mem";
658 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
659 let ParserMatchClass = X86MemAsmOperand;
663 //===----------------------------------------------------------------------===//
664 // X86 Complex Pattern Definitions.
667 // Define X86 specific addressing mode.
668 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
669 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
670 [add, sub, mul, X86mul_imm, shl, or, frameindex],
672 // In 64-bit mode 32-bit LEAs can use RIP-relative addressing.
673 def lea64_32addr : ComplexPattern<i32, 5, "SelectLEA64_32Addr",
674 [add, sub, mul, X86mul_imm, shl, or,
675 frameindex, X86WrapperRIP],
678 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
679 [tglobaltlsaddr], []>;
681 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
682 [tglobaltlsaddr], []>;
684 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
685 [add, sub, mul, X86mul_imm, shl, or, frameindex,
688 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
689 [tglobaltlsaddr], []>;
691 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
692 [tglobaltlsaddr], []>;
694 //===----------------------------------------------------------------------===//
695 // X86 Instruction Predicate Definitions.
696 def HasCMov : Predicate<"Subtarget->hasCMov()">;
697 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
699 def HasMMX : Predicate<"Subtarget->hasMMX()">;
700 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
701 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
702 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
703 def UseSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
704 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
705 def UseSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
706 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
707 def UseSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
708 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
709 def UseSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
710 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
711 def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
712 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
713 def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
714 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
715 def HasAVX : Predicate<"Subtarget->hasAVX()">;
716 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
717 def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;
718 def HasAVX512 : Predicate<"Subtarget->hasAVX512()">,
719 AssemblerPredicate<"FeatureAVX512", "AVX-512 ISA">;
720 def UseAVX : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX512()">;
721 def UseAVX2 : Predicate<"Subtarget->hasAVX2() && !Subtarget->hasAVX512()">;
722 def NoAVX512 : Predicate<"!Subtarget->hasAVX512()">;
723 def HasCDI : Predicate<"Subtarget->hasCDI()">;
724 def HasPFI : Predicate<"Subtarget->hasPFI()">;
725 def HasERI : Predicate<"Subtarget->hasERI()">;
726 def HasDQI : Predicate<"Subtarget->hasDQI()">;
727 def HasBWI : Predicate<"Subtarget->hasBWI()">;
728 def HasVLX : Predicate<"Subtarget->hasVLX()">,
729 AssemblerPredicate<"FeatureVLX", "AVX-512 VLX ISA">;
730 def NoVLX : Predicate<"!Subtarget->hasVLX()">;
732 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
733 def HasAES : Predicate<"Subtarget->hasAES()">;
734 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
735 def HasFMA : Predicate<"Subtarget->hasFMA()">;
736 def UseFMAOnAVX : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
737 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
738 def HasXOP : Predicate<"Subtarget->hasXOP()">;
739 def HasTBM : Predicate<"Subtarget->hasTBM()">;
740 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
741 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
742 def HasF16C : Predicate<"Subtarget->hasF16C()">;
743 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
744 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
745 def HasBMI : Predicate<"Subtarget->hasBMI()">;
746 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
747 def HasRTM : Predicate<"Subtarget->hasRTM()">;
748 def HasHLE : Predicate<"Subtarget->hasHLE()">;
749 def HasTSX : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
750 def HasADX : Predicate<"Subtarget->hasADX()">;
751 def HasSHA : Predicate<"Subtarget->hasSHA()">;
752 def HasSGX : Predicate<"Subtarget->hasSGX()">;
753 def HasPRFCHW : Predicate<"Subtarget->hasPRFCHW()">;
754 def HasRDSEED : Predicate<"Subtarget->hasRDSEED()">;
755 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;
756 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
757 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
758 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
759 def Not64BitMode : Predicate<"!Subtarget->is64Bit()">,
760 AssemblerPredicate<"!Mode64Bit", "Not 64-bit mode">;
761 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
762 AssemblerPredicate<"Mode64Bit", "64-bit mode">;
763 def In16BitMode : Predicate<"Subtarget->is16Bit()">,
764 AssemblerPredicate<"Mode16Bit", "16-bit mode">;
765 def Not16BitMode : Predicate<"!Subtarget->is16Bit()">,
766 AssemblerPredicate<"!Mode16Bit", "Not 16-bit mode">;
767 def In32BitMode : Predicate<"Subtarget->is32Bit()">,
768 AssemblerPredicate<"Mode32Bit", "32-bit mode">;
769 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
770 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
771 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
772 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
773 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
774 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
775 "TM.getCodeModel() != CodeModel::Kernel">;
776 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
777 "TM.getCodeModel() == CodeModel::Kernel">;
778 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
779 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
780 def OptForSize : Predicate<"OptForSize">;
781 def OptForSpeed : Predicate<"!OptForSize">;
782 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
783 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
784 def FavorMemIndirectCall : Predicate<"!Subtarget->callRegIndirect()">;
785 def NotSlowIncDec : Predicate<"!Subtarget->slowIncDec()">;
787 //===----------------------------------------------------------------------===//
788 // X86 Instruction Format Definitions.
791 include "X86InstrFormats.td"
793 //===----------------------------------------------------------------------===//
794 // Pattern fragments.
797 // X86 specific condition code. These correspond to CondCode in
798 // X86InstrInfo.h. They must be kept in synch.
799 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
800 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
801 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
802 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
803 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
804 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
805 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
806 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
807 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
808 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
809 def X86_COND_NO : PatLeaf<(i8 10)>;
810 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
811 def X86_COND_NS : PatLeaf<(i8 12)>;
812 def X86_COND_O : PatLeaf<(i8 13)>;
813 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
814 def X86_COND_S : PatLeaf<(i8 15)>;
816 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
817 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
818 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
819 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
822 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
825 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
827 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
829 def i64immZExt32SExt8 : ImmLeaf<i64, [{
830 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
833 // Helper fragments for loads.
834 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
835 // known to be 32-bit aligned or better. Ditto for i8 to i16.
836 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
837 LoadSDNode *LD = cast<LoadSDNode>(N);
838 ISD::LoadExtType ExtType = LD->getExtensionType();
839 if (ExtType == ISD::NON_EXTLOAD)
841 if (ExtType == ISD::EXTLOAD)
842 return LD->getAlignment() >= 2 && !LD->isVolatile();
846 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
847 LoadSDNode *LD = cast<LoadSDNode>(N);
848 ISD::LoadExtType ExtType = LD->getExtensionType();
849 if (ExtType == ISD::EXTLOAD)
850 return LD->getAlignment() >= 2 && !LD->isVolatile();
854 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
855 LoadSDNode *LD = cast<LoadSDNode>(N);
856 ISD::LoadExtType ExtType = LD->getExtensionType();
857 if (ExtType == ISD::NON_EXTLOAD)
859 if (ExtType == ISD::EXTLOAD)
860 return LD->getAlignment() >= 4 && !LD->isVolatile();
864 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
865 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
866 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
867 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
868 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
870 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
871 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
872 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
873 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
874 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
875 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
877 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
878 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
879 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
880 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
881 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
882 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
883 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
884 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
885 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
886 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
888 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
889 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
890 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
891 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
892 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
893 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
894 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
895 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
896 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
897 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
900 // An 'and' node with a single use.
901 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
902 return N->hasOneUse();
904 // An 'srl' node with a single use.
905 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
906 return N->hasOneUse();
908 // An 'trunc' node with a single use.
909 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
910 return N->hasOneUse();
913 //===----------------------------------------------------------------------===//
918 let neverHasSideEffects = 1, SchedRW = [WriteZero] in {
919 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
920 def NOOPW : I<0x1f, MRMXm, (outs), (ins i16mem:$zero),
921 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize16;
922 def NOOPL : I<0x1f, MRMXm, (outs), (ins i32mem:$zero),
923 "nop{l}\t$zero", [], IIC_NOP>, TB, OpSize32;
927 // Constructing a stack frame.
928 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
929 "enter\t$len, $lvl", [], IIC_ENTER>, Sched<[WriteMicrocoded]>;
931 let SchedRW = [WriteALU] in {
932 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, neverHasSideEffects=1 in
933 def LEAVE : I<0xC9, RawFrm,
934 (outs), (ins), "leave", [], IIC_LEAVE>,
935 Requires<[Not64BitMode]>;
937 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, neverHasSideEffects = 1 in
938 def LEAVE64 : I<0xC9, RawFrm,
939 (outs), (ins), "leave", [], IIC_LEAVE>,
940 Requires<[In64BitMode]>;
943 //===----------------------------------------------------------------------===//
944 // Miscellaneous Instructions.
947 let Defs = [ESP], Uses = [ESP], neverHasSideEffects=1 in {
948 let mayLoad = 1, SchedRW = [WriteLoad] in {
949 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
950 IIC_POP_REG16>, OpSize16;
951 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
952 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
953 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
954 IIC_POP_REG>, OpSize16;
955 def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
956 IIC_POP_MEM>, OpSize16;
957 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
958 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
959 def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
960 IIC_POP_MEM>, OpSize32, Requires<[Not64BitMode]>;
962 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>,
964 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
965 OpSize32, Requires<[Not64BitMode]>;
966 } // mayLoad, SchedRW
968 let mayStore = 1, SchedRW = [WriteStore] in {
969 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
970 IIC_PUSH_REG>, OpSize16;
971 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
972 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
973 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
974 IIC_PUSH_REG>, OpSize16;
975 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
976 IIC_PUSH_MEM>, OpSize16;
977 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
978 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
979 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
980 IIC_PUSH_MEM>, OpSize32, Requires<[Not64BitMode]>;
982 def PUSH16i8 : Ii8<0x6a, RawFrm, (outs), (ins i16i8imm:$imm),
983 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
984 Requires<[Not64BitMode]>;
985 def PUSH32i8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
986 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
987 Requires<[Not64BitMode]>;
988 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
989 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
990 Requires<[Not64BitMode]>;
991 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
992 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
993 Requires<[Not64BitMode]>;
995 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
997 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
998 OpSize32, Requires<[Not64BitMode]>;
1000 } // mayStore, SchedRW
1003 let Defs = [RSP], Uses = [RSP], neverHasSideEffects=1 in {
1004 let mayLoad = 1, SchedRW = [WriteLoad] in {
1005 def POP64r : I<0x58, AddRegFrm, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1006 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1007 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1008 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1009 def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
1010 IIC_POP_MEM>, OpSize32, Requires<[In64BitMode]>;
1011 } // mayLoad, SchedRW
1012 let mayStore = 1, SchedRW = [WriteStore] in {
1013 def PUSH64r : I<0x50, AddRegFrm, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1014 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1015 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1016 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1017 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
1018 IIC_PUSH_MEM>, OpSize32, Requires<[In64BitMode]>;
1019 } // mayStore, SchedRW
1022 let Defs = [RSP], Uses = [RSP], neverHasSideEffects = 1, mayStore = 1,
1023 SchedRW = [WriteStore] in {
1024 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
1025 "push{q}\t$imm", [], IIC_PUSH_IMM>, Requires<[In64BitMode]>;
1026 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1027 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1028 Requires<[In64BitMode]>;
1029 def PUSH64i32 : Ii32S<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
1030 "push{q}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1031 Requires<[In64BitMode]>;
1034 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, neverHasSideEffects=1 in
1035 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
1036 OpSize32, Requires<[In64BitMode]>, Sched<[WriteLoad]>;
1037 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, neverHasSideEffects=1 in
1038 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
1039 OpSize32, Requires<[In64BitMode]>, Sched<[WriteStore]>;
1041 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
1042 mayLoad = 1, neverHasSideEffects = 1, SchedRW = [WriteLoad] in {
1043 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popal", [], IIC_POP_A>,
1044 OpSize32, Requires<[Not64BitMode]>;
1045 def POPA16 : I<0x61, RawFrm, (outs), (ins), "popaw", [], IIC_POP_A>,
1046 OpSize16, Requires<[Not64BitMode]>;
1048 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
1049 mayStore = 1, neverHasSideEffects = 1, SchedRW = [WriteStore] in {
1050 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pushal", [], IIC_PUSH_A>,
1051 OpSize32, Requires<[Not64BitMode]>;
1052 def PUSHA16 : I<0x60, RawFrm, (outs), (ins), "pushaw", [], IIC_PUSH_A>,
1053 OpSize16, Requires<[Not64BitMode]>;
1056 let Constraints = "$src = $dst", SchedRW = [WriteALU] in {
1057 // GR32 = bswap GR32
1058 def BSWAP32r : I<0xC8, AddRegFrm,
1059 (outs GR32:$dst), (ins GR32:$src),
1061 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, OpSize32, TB;
1063 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
1065 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
1066 } // Constraints = "$src = $dst", SchedRW
1068 // Bit scan instructions.
1069 let Defs = [EFLAGS] in {
1070 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1071 "bsf{w}\t{$src, $dst|$dst, $src}",
1072 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
1073 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1074 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1075 "bsf{w}\t{$src, $dst|$dst, $src}",
1076 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
1077 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1078 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1079 "bsf{l}\t{$src, $dst|$dst, $src}",
1080 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))],
1081 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1082 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1083 "bsf{l}\t{$src, $dst|$dst, $src}",
1084 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
1085 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1086 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1087 "bsf{q}\t{$src, $dst|$dst, $src}",
1088 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
1089 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1090 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1091 "bsf{q}\t{$src, $dst|$dst, $src}",
1092 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
1093 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1095 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1096 "bsr{w}\t{$src, $dst|$dst, $src}",
1097 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))],
1098 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1099 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1100 "bsr{w}\t{$src, $dst|$dst, $src}",
1101 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
1102 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1103 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1104 "bsr{l}\t{$src, $dst|$dst, $src}",
1105 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))],
1106 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1107 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1108 "bsr{l}\t{$src, $dst|$dst, $src}",
1109 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
1110 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1111 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1112 "bsr{q}\t{$src, $dst|$dst, $src}",
1113 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))],
1114 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1115 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1116 "bsr{q}\t{$src, $dst|$dst, $src}",
1117 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
1118 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1119 } // Defs = [EFLAGS]
1121 let SchedRW = [WriteMicrocoded] in {
1122 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1123 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
1124 def MOVSB : I<0xA4, RawFrmDstSrc, (outs dstidx8:$dst), (ins srcidx8:$src),
1125 "movsb\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1126 def MOVSW : I<0xA5, RawFrmDstSrc, (outs dstidx16:$dst), (ins srcidx16:$src),
1127 "movsw\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize16;
1128 def MOVSL : I<0xA5, RawFrmDstSrc, (outs dstidx32:$dst), (ins srcidx32:$src),
1129 "movs{l|d}\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize32;
1130 def MOVSQ : RI<0xA5, RawFrmDstSrc, (outs dstidx64:$dst), (ins srcidx64:$src),
1131 "movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1134 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1135 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
1136 def STOSB : I<0xAA, RawFrmDst, (outs dstidx8:$dst), (ins),
1137 "stosb\t{%al, $dst|$dst, al}", [], IIC_STOS>;
1138 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
1139 def STOSW : I<0xAB, RawFrmDst, (outs dstidx16:$dst), (ins),
1140 "stosw\t{%ax, $dst|$dst, ax}", [], IIC_STOS>, OpSize16;
1141 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
1142 def STOSL : I<0xAB, RawFrmDst, (outs dstidx32:$dst), (ins),
1143 "stos{l|d}\t{%eax, $dst|$dst, eax}", [], IIC_STOS>, OpSize32;
1144 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
1145 def STOSQ : RI<0xAB, RawFrmDst, (outs dstidx64:$dst), (ins),
1146 "stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>;
1148 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1149 let Defs = [EDI,EFLAGS], Uses = [AL,EDI,EFLAGS] in
1150 def SCASB : I<0xAE, RawFrmDst, (outs), (ins dstidx8:$dst),
1151 "scasb\t{$dst, %al|al, $dst}", [], IIC_SCAS>;
1152 let Defs = [EDI,EFLAGS], Uses = [AX,EDI,EFLAGS] in
1153 def SCASW : I<0xAF, RawFrmDst, (outs), (ins dstidx16:$dst),
1154 "scasw\t{$dst, %ax|ax, $dst}", [], IIC_SCAS>, OpSize16;
1155 let Defs = [EDI,EFLAGS], Uses = [EAX,EDI,EFLAGS] in
1156 def SCASL : I<0xAF, RawFrmDst, (outs), (ins dstidx32:$dst),
1157 "scas{l|d}\t{$dst, %eax|eax, $dst}", [], IIC_SCAS>, OpSize32;
1158 let Defs = [EDI,EFLAGS], Uses = [RAX,EDI,EFLAGS] in
1159 def SCASQ : RI<0xAF, RawFrmDst, (outs), (ins dstidx64:$dst),
1160 "scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>;
1162 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1163 let Defs = [EDI,ESI,EFLAGS], Uses = [EDI,ESI,EFLAGS] in {
1164 def CMPSB : I<0xA6, RawFrmDstSrc, (outs), (ins dstidx8:$dst, srcidx8:$src),
1165 "cmpsb\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1166 def CMPSW : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
1167 "cmpsw\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize16;
1168 def CMPSL : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
1169 "cmps{l|d}\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize32;
1170 def CMPSQ : RI<0xA7, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
1171 "cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1175 //===----------------------------------------------------------------------===//
1176 // Move Instructions.
1178 let SchedRW = [WriteMove] in {
1179 let neverHasSideEffects = 1 in {
1180 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
1181 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1182 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1183 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1184 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1185 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1186 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1187 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1190 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
1191 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
1192 "mov{b}\t{$src, $dst|$dst, $src}",
1193 [(set GR8:$dst, imm:$src)], IIC_MOV>;
1194 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
1195 "mov{w}\t{$src, $dst|$dst, $src}",
1196 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize16;
1197 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
1198 "mov{l}\t{$src, $dst|$dst, $src}",
1199 [(set GR32:$dst, imm:$src)], IIC_MOV>, OpSize32;
1200 def MOV64ri32 : RIi32S<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
1201 "mov{q}\t{$src, $dst|$dst, $src}",
1202 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
1204 let isReMaterializable = 1 in {
1205 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
1206 "movabs{q}\t{$src, $dst|$dst, $src}",
1207 [(set GR64:$dst, imm:$src)], IIC_MOV>;
1210 // Longer forms that use a ModR/M byte. Needed for disassembler
1211 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0 in {
1212 def MOV8ri_alt : Ii8 <0xC6, MRM0r, (outs GR8 :$dst), (ins i8imm :$src),
1213 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1214 def MOV16ri_alt : Ii16<0xC7, MRM0r, (outs GR16:$dst), (ins i16imm:$src),
1215 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1216 def MOV32ri_alt : Ii32<0xC7, MRM0r, (outs GR32:$dst), (ins i32imm:$src),
1217 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1221 let SchedRW = [WriteStore] in {
1222 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
1223 "mov{b}\t{$src, $dst|$dst, $src}",
1224 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1225 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
1226 "mov{w}\t{$src, $dst|$dst, $src}",
1227 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize16;
1228 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
1229 "mov{l}\t{$src, $dst|$dst, $src}",
1230 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize32;
1231 def MOV64mi32 : RIi32S<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
1232 "mov{q}\t{$src, $dst|$dst, $src}",
1233 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
1236 let hasSideEffects = 0 in {
1238 /// moffs8, moffs16 and moffs32 versions of moves. The immediate is a
1239 /// 32-bit offset from the segment base. These are only valid in x86-32 mode.
1240 let SchedRW = [WriteALU] in {
1241 let mayLoad = 1 in {
1243 def MOV8o8a : Ii32 <0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
1244 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1245 Requires<[In32BitMode]>;
1247 def MOV16o16a : Ii32 <0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
1248 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1249 OpSize16, Requires<[In32BitMode]>;
1251 def MOV32o32a : Ii32 <0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
1252 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1253 OpSize32, Requires<[In32BitMode]>;
1256 def MOV8o8a_16 : Ii16 <0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
1257 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1258 AdSize, Requires<[In16BitMode]>;
1260 def MOV16o16a_16 : Ii16 <0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
1261 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1262 OpSize16, AdSize, Requires<[In16BitMode]>;
1264 def MOV32o32a_16 : Ii16 <0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
1265 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1266 AdSize, OpSize32, Requires<[In16BitMode]>;
1268 let mayStore = 1 in {
1270 def MOV8ao8 : Ii32 <0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
1271 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>,
1272 Requires<[In32BitMode]>;
1274 def MOV16ao16 : Ii32 <0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
1275 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1276 OpSize16, Requires<[In32BitMode]>;
1278 def MOV32ao32 : Ii32 <0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
1279 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1280 OpSize32, Requires<[In32BitMode]>;
1283 def MOV8ao8_16 : Ii16 <0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
1284 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>,
1285 AdSize, Requires<[In16BitMode]>;
1287 def MOV16ao16_16 : Ii16 <0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
1288 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1289 OpSize16, AdSize, Requires<[In16BitMode]>;
1291 def MOV32ao32_16 : Ii16 <0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
1292 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1293 OpSize32, AdSize, Requires<[In16BitMode]>;
1297 // These forms all have full 64-bit absolute addresses in their instructions
1298 // and use the movabs mnemonic to indicate this specific form.
1299 let mayLoad = 1 in {
1301 def MOV64o8a : RIi64_NOREX<0xA0, RawFrmMemOffs, (outs), (ins offset8:$src),
1302 "movabs{b}\t{$src, %al|al, $src}", []>,
1303 Requires<[In64BitMode]>;
1305 def MOV64o16a : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset16:$src),
1306 "movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize16,
1307 Requires<[In64BitMode]>;
1309 def MOV64o32a : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset32:$src),
1310 "movabs{l}\t{$src, %eax|eax, $src}", []>, OpSize32,
1311 Requires<[In64BitMode]>;
1313 def MOV64o64a : RIi64<0xA1, RawFrmMemOffs, (outs), (ins offset64:$src),
1314 "movabs{q}\t{$src, %rax|rax, $src}", []>,
1315 Requires<[In64BitMode]>;
1318 let mayStore = 1 in {
1320 def MOV64ao8 : RIi64_NOREX<0xA2, RawFrmMemOffs, (outs offset8:$dst), (ins),
1321 "movabs{b}\t{%al, $dst|$dst, al}", []>,
1322 Requires<[In64BitMode]>;
1324 def MOV64ao16 : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset16:$dst), (ins),
1325 "movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize16,
1326 Requires<[In64BitMode]>;
1328 def MOV64ao32 : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset32:$dst), (ins),
1329 "movabs{l}\t{%eax, $dst|$dst, eax}", []>, OpSize32,
1330 Requires<[In64BitMode]>;
1332 def MOV64ao64 : RIi64<0xA3, RawFrmMemOffs, (outs offset64:$dst), (ins),
1333 "movabs{q}\t{%rax, $dst|$dst, rax}", []>,
1334 Requires<[In64BitMode]>;
1336 } // hasSideEffects = 0
1338 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0,
1339 SchedRW = [WriteMove] in {
1340 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1341 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1342 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1343 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1344 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1345 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1346 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1347 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1350 let canFoldAsLoad = 1, isReMaterializable = 1, SchedRW = [WriteLoad] in {
1351 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1352 "mov{b}\t{$src, $dst|$dst, $src}",
1353 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1354 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1355 "mov{w}\t{$src, $dst|$dst, $src}",
1356 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize16;
1357 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1358 "mov{l}\t{$src, $dst|$dst, $src}",
1359 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>, OpSize32;
1360 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1361 "mov{q}\t{$src, $dst|$dst, $src}",
1362 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1365 let SchedRW = [WriteStore] in {
1366 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1367 "mov{b}\t{$src, $dst|$dst, $src}",
1368 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1369 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1370 "mov{w}\t{$src, $dst|$dst, $src}",
1371 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize16;
1372 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1373 "mov{l}\t{$src, $dst|$dst, $src}",
1374 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>, OpSize32;
1375 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1376 "mov{q}\t{$src, $dst|$dst, $src}",
1377 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1380 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1381 // that they can be used for copying and storing h registers, which can't be
1382 // encoded when a REX prefix is present.
1383 let isCodeGenOnly = 1 in {
1384 let neverHasSideEffects = 1 in
1385 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1386 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1387 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>,
1389 let mayStore = 1, neverHasSideEffects = 1 in
1390 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1391 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1392 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1393 IIC_MOV_MEM>, Sched<[WriteStore]>;
1394 let mayLoad = 1, neverHasSideEffects = 1,
1395 canFoldAsLoad = 1, isReMaterializable = 1 in
1396 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1397 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1398 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1399 IIC_MOV_MEM>, Sched<[WriteLoad]>;
1403 // Condition code ops, incl. set if equal/not equal/...
1404 let SchedRW = [WriteALU] in {
1405 let Defs = [EFLAGS], Uses = [AH] in
1406 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1407 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1408 let Defs = [AH], Uses = [EFLAGS], neverHasSideEffects = 1 in
1409 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1410 IIC_AHF>; // AH = flags
1413 //===----------------------------------------------------------------------===//
1414 // Bit tests instructions: BT, BTS, BTR, BTC.
1416 let Defs = [EFLAGS] in {
1417 let SchedRW = [WriteALU] in {
1418 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1419 "bt{w}\t{$src2, $src1|$src1, $src2}",
1420 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1422 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1423 "bt{l}\t{$src2, $src1|$src1, $src2}",
1424 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>,
1426 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1427 "bt{q}\t{$src2, $src1|$src1, $src2}",
1428 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1431 // Unlike with the register+register form, the memory+register form of the
1432 // bt instruction does not ignore the high bits of the index. From ISel's
1433 // perspective, this is pretty bizarre. Make these instructions disassembly
1436 let mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteALULd] in {
1437 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1438 "bt{w}\t{$src2, $src1|$src1, $src2}",
1439 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1440 // (implicit EFLAGS)]
1442 >, OpSize16, TB, Requires<[FastBTMem]>;
1443 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1444 "bt{l}\t{$src2, $src1|$src1, $src2}",
1445 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1446 // (implicit EFLAGS)]
1448 >, OpSize32, TB, Requires<[FastBTMem]>;
1449 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1450 "bt{q}\t{$src2, $src1|$src1, $src2}",
1451 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1452 // (implicit EFLAGS)]
1457 let SchedRW = [WriteALU] in {
1458 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1459 "bt{w}\t{$src2, $src1|$src1, $src2}",
1460 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1461 IIC_BT_RI>, OpSize16, TB;
1462 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1463 "bt{l}\t{$src2, $src1|$src1, $src2}",
1464 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1465 IIC_BT_RI>, OpSize32, TB;
1466 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1467 "bt{q}\t{$src2, $src1|$src1, $src2}",
1468 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1472 // Note that these instructions don't need FastBTMem because that
1473 // only applies when the other operand is in a register. When it's
1474 // an immediate, bt is still fast.
1475 let SchedRW = [WriteALU] in {
1476 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1477 "bt{w}\t{$src2, $src1|$src1, $src2}",
1478 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1479 ], IIC_BT_MI>, OpSize16, TB;
1480 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1481 "bt{l}\t{$src2, $src1|$src1, $src2}",
1482 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1483 ], IIC_BT_MI>, OpSize32, TB;
1484 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1485 "bt{q}\t{$src2, $src1|$src1, $src2}",
1486 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1487 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1490 let hasSideEffects = 0 in {
1491 let SchedRW = [WriteALU] in {
1492 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1493 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1495 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1496 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1498 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1499 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1502 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1503 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1504 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1506 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1507 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1509 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1510 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1513 let SchedRW = [WriteALU] in {
1514 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1515 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1517 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1518 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1520 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1521 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1524 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1525 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1526 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1528 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1529 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1531 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1532 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1535 let SchedRW = [WriteALU] in {
1536 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1537 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1539 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1540 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1542 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1543 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1546 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1547 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1548 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1550 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1551 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1553 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1554 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1557 let SchedRW = [WriteALU] in {
1558 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1559 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1561 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1562 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1564 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1565 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1568 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1569 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1570 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1572 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1573 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1575 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1576 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1579 let SchedRW = [WriteALU] in {
1580 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1581 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1583 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1584 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1586 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1587 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1590 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1591 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1592 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1594 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1595 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1597 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1598 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1601 let SchedRW = [WriteALU] in {
1602 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1603 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1605 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1606 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1608 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1609 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1612 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1613 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1614 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1616 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1617 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1619 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1620 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1622 } // hasSideEffects = 0
1623 } // Defs = [EFLAGS]
1626 //===----------------------------------------------------------------------===//
1630 // Atomic swap. These are just normal xchg instructions. But since a memory
1631 // operand is referenced, the atomicity is ensured.
1632 multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag,
1633 InstrItinClass itin> {
1634 let Constraints = "$val = $dst", SchedRW = [WriteALULd, WriteRMW] in {
1635 def NAME#8rm : I<opc8, MRMSrcMem, (outs GR8:$dst),
1636 (ins GR8:$val, i8mem:$ptr),
1637 !strconcat(mnemonic, "{b}\t{$val, $ptr|$ptr, $val}"),
1640 (!cast<PatFrag>(frag # "_8") addr:$ptr, GR8:$val))],
1642 def NAME#16rm : I<opc, MRMSrcMem, (outs GR16:$dst),
1643 (ins GR16:$val, i16mem:$ptr),
1644 !strconcat(mnemonic, "{w}\t{$val, $ptr|$ptr, $val}"),
1647 (!cast<PatFrag>(frag # "_16") addr:$ptr, GR16:$val))],
1649 def NAME#32rm : I<opc, MRMSrcMem, (outs GR32:$dst),
1650 (ins GR32:$val, i32mem:$ptr),
1651 !strconcat(mnemonic, "{l}\t{$val, $ptr|$ptr, $val}"),
1654 (!cast<PatFrag>(frag # "_32") addr:$ptr, GR32:$val))],
1656 def NAME#64rm : RI<opc, MRMSrcMem, (outs GR64:$dst),
1657 (ins GR64:$val, i64mem:$ptr),
1658 !strconcat(mnemonic, "{q}\t{$val, $ptr|$ptr, $val}"),
1661 (!cast<PatFrag>(frag # "_64") addr:$ptr, GR64:$val))],
1666 defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap", IIC_XCHG_MEM>;
1668 // Swap between registers.
1669 let SchedRW = [WriteALU] in {
1670 let Constraints = "$val = $dst" in {
1671 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1672 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1673 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1674 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1676 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1677 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1679 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1680 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1683 // Swap between EAX and other registers.
1684 let Uses = [AX], Defs = [AX] in
1685 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1686 "xchg{w}\t{$src, %ax|ax, $src}", [], IIC_XCHG_REG>, OpSize16;
1687 let Uses = [EAX], Defs = [EAX] in
1688 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1689 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1690 OpSize32, Requires<[Not64BitMode]>;
1691 let Uses = [EAX], Defs = [EAX] in
1692 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1693 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1694 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1695 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1696 OpSize32, Requires<[In64BitMode]>;
1697 let Uses = [RAX], Defs = [RAX] in
1698 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1699 "xchg{q}\t{$src, %rax|rax, $src}", [], IIC_XCHG_REG>;
1702 let SchedRW = [WriteALU] in {
1703 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1704 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1705 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1706 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1708 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1709 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1711 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1712 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1715 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1716 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1717 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1718 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1719 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1721 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1722 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1724 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1725 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1729 let SchedRW = [WriteALU] in {
1730 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1731 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1732 IIC_CMPXCHG_REG8>, TB;
1733 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1734 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1735 IIC_CMPXCHG_REG>, TB, OpSize16;
1736 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1737 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1738 IIC_CMPXCHG_REG>, TB, OpSize32;
1739 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1740 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1741 IIC_CMPXCHG_REG>, TB;
1744 let SchedRW = [WriteALULd, WriteRMW] in {
1745 let mayLoad = 1, mayStore = 1 in {
1746 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1747 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1748 IIC_CMPXCHG_MEM8>, TB;
1749 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1750 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1751 IIC_CMPXCHG_MEM>, TB, OpSize16;
1752 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1753 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1754 IIC_CMPXCHG_MEM>, TB, OpSize32;
1755 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1756 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1757 IIC_CMPXCHG_MEM>, TB;
1760 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1761 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1762 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1764 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1765 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1766 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1767 TB, Requires<[HasCmpxchg16b]>;
1771 // Lock instruction prefix
1772 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1774 // Rex64 instruction prefix
1775 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>,
1776 Requires<[In64BitMode]>;
1778 // Data16 instruction prefix
1779 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1781 // Repeat string operation instruction prefixes
1782 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1783 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1784 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1785 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1786 // Repeat while not equal (used with CMPS and SCAS)
1787 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1791 // String manipulation instructions
1792 let SchedRW = [WriteMicrocoded] in {
1793 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1794 let Defs = [AL,ESI], Uses = [ESI,EFLAGS] in
1795 def LODSB : I<0xAC, RawFrmSrc, (outs), (ins srcidx8:$src),
1796 "lodsb\t{$src, %al|al, $src}", [], IIC_LODS>;
1797 let Defs = [AX,ESI], Uses = [ESI,EFLAGS] in
1798 def LODSW : I<0xAD, RawFrmSrc, (outs), (ins srcidx16:$src),
1799 "lodsw\t{$src, %ax|ax, $src}", [], IIC_LODS>, OpSize16;
1800 let Defs = [EAX,ESI], Uses = [ESI,EFLAGS] in
1801 def LODSL : I<0xAD, RawFrmSrc, (outs), (ins srcidx32:$src),
1802 "lods{l|d}\t{$src, %eax|eax, $src}", [], IIC_LODS>, OpSize32;
1803 let Defs = [RAX,ESI], Uses = [ESI,EFLAGS] in
1804 def LODSQ : RI<0xAD, RawFrmSrc, (outs), (ins srcidx64:$src),
1805 "lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>;
1808 let SchedRW = [WriteSystem] in {
1809 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1810 let Defs = [ESI], Uses = [DX,ESI,EFLAGS] in {
1811 def OUTSB : I<0x6E, RawFrmSrc, (outs), (ins srcidx8:$src),
1812 "outsb\t{$src, %dx|dx, $src}", [], IIC_OUTS>;
1813 def OUTSW : I<0x6F, RawFrmSrc, (outs), (ins srcidx16:$src),
1814 "outsw\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize16;
1815 def OUTSL : I<0x6F, RawFrmSrc, (outs), (ins srcidx32:$src),
1816 "outs{l|d}\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize32;
1819 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1820 let Defs = [EDI], Uses = [DX,EDI,EFLAGS] in {
1821 def INSB : I<0x6C, RawFrmDst, (outs dstidx8:$dst), (ins),
1822 "insb\t{%dx, $dst|$dst, dx}", [], IIC_INS>;
1823 def INSW : I<0x6D, RawFrmDst, (outs dstidx16:$dst), (ins),
1824 "insw\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize16;
1825 def INSL : I<0x6D, RawFrmDst, (outs dstidx32:$dst), (ins),
1826 "ins{l|d}\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize32;
1830 // Flag instructions
1831 let SchedRW = [WriteALU] in {
1832 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1833 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1834 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1835 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1836 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1837 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1838 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1840 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1843 // Table lookup instructions
1844 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>,
1847 let SchedRW = [WriteMicrocoded] in {
1848 // ASCII Adjust After Addition
1849 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1850 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1851 Requires<[Not64BitMode]>;
1853 // ASCII Adjust AX Before Division
1854 // sets AL, AH and EFLAGS and uses AL and AH
1855 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1856 "aad\t$src", [], IIC_AAD>, Requires<[Not64BitMode]>;
1858 // ASCII Adjust AX After Multiply
1859 // sets AL, AH and EFLAGS and uses AL
1860 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1861 "aam\t$src", [], IIC_AAM>, Requires<[Not64BitMode]>;
1863 // ASCII Adjust AL After Subtraction - sets
1864 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1865 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1866 Requires<[Not64BitMode]>;
1868 // Decimal Adjust AL after Addition
1869 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1870 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1871 Requires<[Not64BitMode]>;
1873 // Decimal Adjust AL after Subtraction
1874 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1875 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1876 Requires<[Not64BitMode]>;
1879 let SchedRW = [WriteSystem] in {
1880 // Check Array Index Against Bounds
1881 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1882 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize16,
1883 Requires<[Not64BitMode]>;
1884 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1885 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize32,
1886 Requires<[Not64BitMode]>;
1888 // Adjust RPL Field of Segment Selector
1889 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1890 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1891 Requires<[Not64BitMode]>;
1892 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1893 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1894 Requires<[Not64BitMode]>;
1897 //===----------------------------------------------------------------------===//
1898 // MOVBE Instructions
1900 let Predicates = [HasMOVBE] in {
1901 let SchedRW = [WriteALULd] in {
1902 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1903 "movbe{w}\t{$src, $dst|$dst, $src}",
1904 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1906 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1907 "movbe{l}\t{$src, $dst|$dst, $src}",
1908 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1910 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1911 "movbe{q}\t{$src, $dst|$dst, $src}",
1912 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1915 let SchedRW = [WriteStore] in {
1916 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1917 "movbe{w}\t{$src, $dst|$dst, $src}",
1918 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1920 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1921 "movbe{l}\t{$src, $dst|$dst, $src}",
1922 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1924 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1925 "movbe{q}\t{$src, $dst|$dst, $src}",
1926 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1931 //===----------------------------------------------------------------------===//
1932 // RDRAND Instruction
1934 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1935 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1937 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, TB;
1938 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1940 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, TB;
1941 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1943 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1946 //===----------------------------------------------------------------------===//
1947 // RDSEED Instruction
1949 let Predicates = [HasRDSEED], Defs = [EFLAGS] in {
1950 def RDSEED16r : I<0xC7, MRM7r, (outs GR16:$dst), (ins),
1952 [(set GR16:$dst, EFLAGS, (X86rdseed))]>, OpSize16, TB;
1953 def RDSEED32r : I<0xC7, MRM7r, (outs GR32:$dst), (ins),
1955 [(set GR32:$dst, EFLAGS, (X86rdseed))]>, OpSize32, TB;
1956 def RDSEED64r : RI<0xC7, MRM7r, (outs GR64:$dst), (ins),
1958 [(set GR64:$dst, EFLAGS, (X86rdseed))]>, TB;
1961 //===----------------------------------------------------------------------===//
1962 // LZCNT Instruction
1964 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1965 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1966 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1967 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1969 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1970 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1971 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1972 (implicit EFLAGS)]>, XS, OpSize16;
1974 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1975 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1976 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS,
1978 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1979 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1980 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1981 (implicit EFLAGS)]>, XS, OpSize32;
1983 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1984 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1985 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1987 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1988 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1989 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1990 (implicit EFLAGS)]>, XS;
1993 let Predicates = [HasLZCNT] in {
1994 def : Pat<(X86cmov (ctlz GR16:$src), (i16 16), (X86_COND_E),
1995 (X86cmp GR16:$src, (i16 0))),
1996 (LZCNT16rr GR16:$src)>;
1997 def : Pat<(X86cmov (ctlz GR32:$src), (i32 32), (X86_COND_E),
1998 (X86cmp GR32:$src, (i32 0))),
1999 (LZCNT32rr GR32:$src)>;
2000 def : Pat<(X86cmov (ctlz GR64:$src), (i64 64), (X86_COND_E),
2001 (X86cmp GR64:$src, (i64 0))),
2002 (LZCNT64rr GR64:$src)>;
2003 def : Pat<(X86cmov (i16 16), (ctlz GR16:$src), (X86_COND_E),
2004 (X86cmp GR16:$src, (i16 0))),
2005 (LZCNT16rr GR16:$src)>;
2006 def : Pat<(X86cmov (i32 32), (ctlz GR32:$src), (X86_COND_E),
2007 (X86cmp GR32:$src, (i32 0))),
2008 (LZCNT32rr GR32:$src)>;
2009 def : Pat<(X86cmov (i64 64), (ctlz GR64:$src), (X86_COND_E),
2010 (X86cmp GR64:$src, (i64 0))),
2011 (LZCNT64rr GR64:$src)>;
2013 def : Pat<(X86cmov (ctlz (loadi16 addr:$src)), (i16 16), (X86_COND_E),
2014 (X86cmp (loadi16 addr:$src), (i16 0))),
2015 (LZCNT16rm addr:$src)>;
2016 def : Pat<(X86cmov (ctlz (loadi32 addr:$src)), (i32 32), (X86_COND_E),
2017 (X86cmp (loadi32 addr:$src), (i32 0))),
2018 (LZCNT32rm addr:$src)>;
2019 def : Pat<(X86cmov (ctlz (loadi64 addr:$src)), (i64 64), (X86_COND_E),
2020 (X86cmp (loadi64 addr:$src), (i64 0))),
2021 (LZCNT64rm addr:$src)>;
2022 def : Pat<(X86cmov (i16 16), (ctlz (loadi16 addr:$src)), (X86_COND_E),
2023 (X86cmp (loadi16 addr:$src), (i16 0))),
2024 (LZCNT16rm addr:$src)>;
2025 def : Pat<(X86cmov (i32 32), (ctlz (loadi32 addr:$src)), (X86_COND_E),
2026 (X86cmp (loadi32 addr:$src), (i32 0))),
2027 (LZCNT32rm addr:$src)>;
2028 def : Pat<(X86cmov (i64 64), (ctlz (loadi64 addr:$src)), (X86_COND_E),
2029 (X86cmp (loadi64 addr:$src), (i64 0))),
2030 (LZCNT64rm addr:$src)>;
2033 //===----------------------------------------------------------------------===//
2036 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2037 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
2038 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2039 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
2041 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
2042 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2043 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
2044 (implicit EFLAGS)]>, XS, OpSize16;
2046 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2047 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2048 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS,
2050 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2051 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2052 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
2053 (implicit EFLAGS)]>, XS, OpSize32;
2055 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2056 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2057 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
2059 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2060 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2061 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
2062 (implicit EFLAGS)]>, XS;
2065 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
2066 RegisterClass RC, X86MemOperand x86memop> {
2067 let hasSideEffects = 0 in {
2068 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
2069 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2072 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
2073 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2078 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2079 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem>;
2080 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem>, VEX_W;
2081 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem>;
2082 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem>, VEX_W;
2083 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem>;
2084 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem>, VEX_W;
2087 //===----------------------------------------------------------------------===//
2088 // Pattern fragments to auto generate BMI instructions.
2089 //===----------------------------------------------------------------------===//
2091 let Predicates = [HasBMI] in {
2092 // FIXME: patterns for the load versions are not implemented
2093 def : Pat<(and GR32:$src, (add GR32:$src, -1)),
2094 (BLSR32rr GR32:$src)>;
2095 def : Pat<(and GR64:$src, (add GR64:$src, -1)),
2096 (BLSR64rr GR64:$src)>;
2098 def : Pat<(xor GR32:$src, (add GR32:$src, -1)),
2099 (BLSMSK32rr GR32:$src)>;
2100 def : Pat<(xor GR64:$src, (add GR64:$src, -1)),
2101 (BLSMSK64rr GR64:$src)>;
2103 def : Pat<(and GR32:$src, (ineg GR32:$src)),
2104 (BLSI32rr GR32:$src)>;
2105 def : Pat<(and GR64:$src, (ineg GR64:$src)),
2106 (BLSI64rr GR64:$src)>;
2109 let Predicates = [HasBMI] in {
2110 def : Pat<(X86cmov (cttz GR16:$src), (i16 16), (X86_COND_E),
2111 (X86cmp GR16:$src, (i16 0))),
2112 (TZCNT16rr GR16:$src)>;
2113 def : Pat<(X86cmov (cttz GR32:$src), (i32 32), (X86_COND_E),
2114 (X86cmp GR32:$src, (i32 0))),
2115 (TZCNT32rr GR32:$src)>;
2116 def : Pat<(X86cmov (cttz GR64:$src), (i64 64), (X86_COND_E),
2117 (X86cmp GR64:$src, (i64 0))),
2118 (TZCNT64rr GR64:$src)>;
2119 def : Pat<(X86cmov (i16 16), (cttz GR16:$src), (X86_COND_E),
2120 (X86cmp GR16:$src, (i16 0))),
2121 (TZCNT16rr GR16:$src)>;
2122 def : Pat<(X86cmov (i32 32), (cttz GR32:$src), (X86_COND_E),
2123 (X86cmp GR32:$src, (i32 0))),
2124 (TZCNT32rr GR32:$src)>;
2125 def : Pat<(X86cmov (i64 64), (cttz GR64:$src), (X86_COND_E),
2126 (X86cmp GR64:$src, (i64 0))),
2127 (TZCNT64rr GR64:$src)>;
2129 def : Pat<(X86cmov (cttz (loadi16 addr:$src)), (i16 16), (X86_COND_E),
2130 (X86cmp (loadi16 addr:$src), (i16 0))),
2131 (TZCNT16rm addr:$src)>;
2132 def : Pat<(X86cmov (cttz (loadi32 addr:$src)), (i32 32), (X86_COND_E),
2133 (X86cmp (loadi32 addr:$src), (i32 0))),
2134 (TZCNT32rm addr:$src)>;
2135 def : Pat<(X86cmov (cttz (loadi64 addr:$src)), (i64 64), (X86_COND_E),
2136 (X86cmp (loadi64 addr:$src), (i64 0))),
2137 (TZCNT64rm addr:$src)>;
2138 def : Pat<(X86cmov (i16 16), (cttz (loadi16 addr:$src)), (X86_COND_E),
2139 (X86cmp (loadi16 addr:$src), (i16 0))),
2140 (TZCNT16rm addr:$src)>;
2141 def : Pat<(X86cmov (i32 32), (cttz (loadi32 addr:$src)), (X86_COND_E),
2142 (X86cmp (loadi32 addr:$src), (i32 0))),
2143 (TZCNT32rm addr:$src)>;
2144 def : Pat<(X86cmov (i64 64), (cttz (loadi64 addr:$src)), (X86_COND_E),
2145 (X86cmp (loadi64 addr:$src), (i64 0))),
2146 (TZCNT64rm addr:$src)>;
2150 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
2151 X86MemOperand x86memop, Intrinsic Int,
2153 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2154 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2155 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
2157 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
2158 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2159 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
2160 (implicit EFLAGS)]>, T8PS, VEX_4VOp3;
2163 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2164 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
2165 int_x86_bmi_bextr_32, loadi32>;
2166 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
2167 int_x86_bmi_bextr_64, loadi64>, VEX_W;
2170 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
2171 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
2172 int_x86_bmi_bzhi_32, loadi32>;
2173 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
2174 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
2178 def CountTrailingOnes : SDNodeXForm<imm, [{
2179 // Count the trailing ones in the immediate.
2180 return getI8Imm(CountTrailingOnes_64(N->getZExtValue()));
2183 def BZHIMask : ImmLeaf<i64, [{
2184 return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
2187 let Predicates = [HasBMI2] in {
2188 def : Pat<(and GR64:$src, BZHIMask:$mask),
2189 (BZHI64rr GR64:$src,
2190 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
2191 (MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
2193 def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
2194 (BZHI32rr GR32:$src,
2195 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2197 def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
2198 (BZHI32rm addr:$src,
2199 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2201 def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
2202 (BZHI64rr GR64:$src,
2203 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2205 def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
2206 (BZHI64rm addr:$src,
2207 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2210 let Predicates = [HasBMI] in {
2211 def : Pat<(X86bextr GR32:$src1, GR32:$src2),
2212 (BEXTR32rr GR32:$src1, GR32:$src2)>;
2213 def : Pat<(X86bextr (loadi32 addr:$src1), GR32:$src2),
2214 (BEXTR32rm addr:$src1, GR32:$src2)>;
2215 def : Pat<(X86bextr GR64:$src1, GR64:$src2),
2216 (BEXTR64rr GR64:$src1, GR64:$src2)>;
2217 def : Pat<(X86bextr (loadi64 addr:$src1), GR64:$src2),
2218 (BEXTR64rm addr:$src1, GR64:$src2)>;
2221 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
2222 X86MemOperand x86memop, Intrinsic Int,
2224 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2225 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2226 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
2228 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
2229 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2230 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
2233 let Predicates = [HasBMI2] in {
2234 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
2235 int_x86_bmi_pdep_32, loadi32>, T8XD;
2236 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
2237 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
2238 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
2239 int_x86_bmi_pext_32, loadi32>, T8XS;
2240 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
2241 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
2244 //===----------------------------------------------------------------------===//
2247 let Predicates = [HasTBM], Defs = [EFLAGS] in {
2249 multiclass tbm_ternary_imm_intr<bits<8> opc, RegisterClass RC, string OpcodeStr,
2250 X86MemOperand x86memop, PatFrag ld_frag,
2251 Intrinsic Int, Operand immtype,
2252 SDPatternOperator immoperator> {
2253 def ri : Ii32<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, immtype:$cntl),
2254 !strconcat(OpcodeStr,
2255 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2256 [(set RC:$dst, (Int RC:$src1, immoperator:$cntl))]>,
2258 def mi : Ii32<opc, MRMSrcMem, (outs RC:$dst),
2259 (ins x86memop:$src1, immtype:$cntl),
2260 !strconcat(OpcodeStr,
2261 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2262 [(set RC:$dst, (Int (ld_frag addr:$src1), immoperator:$cntl))]>,
2266 defm BEXTRI32 : tbm_ternary_imm_intr<0x10, GR32, "bextr", i32mem, loadi32,
2267 int_x86_tbm_bextri_u32, i32imm, imm>;
2268 let ImmT = Imm32S in
2269 defm BEXTRI64 : tbm_ternary_imm_intr<0x10, GR64, "bextr", i64mem, loadi64,
2270 int_x86_tbm_bextri_u64, i64i32imm,
2271 i64immSExt32>, VEX_W;
2273 multiclass tbm_binary_rm<bits<8> opc, Format FormReg, Format FormMem,
2274 RegisterClass RC, string OpcodeStr,
2275 X86MemOperand x86memop, PatFrag ld_frag> {
2276 let hasSideEffects = 0 in {
2277 def rr : I<opc, FormReg, (outs RC:$dst), (ins RC:$src),
2278 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2281 def rm : I<opc, FormMem, (outs RC:$dst), (ins x86memop:$src),
2282 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2287 multiclass tbm_binary_intr<bits<8> opc, string OpcodeStr,
2288 Format FormReg, Format FormMem> {
2289 defm NAME#32 : tbm_binary_rm<opc, FormReg, FormMem, GR32, OpcodeStr, i32mem,
2291 defm NAME#64 : tbm_binary_rm<opc, FormReg, FormMem, GR64, OpcodeStr, i64mem,
2295 defm BLCFILL : tbm_binary_intr<0x01, "blcfill", MRM1r, MRM1m>;
2296 defm BLCI : tbm_binary_intr<0x02, "blci", MRM6r, MRM6m>;
2297 defm BLCIC : tbm_binary_intr<0x01, "blcic", MRM5r, MRM5m>;
2298 defm BLCMSK : tbm_binary_intr<0x02, "blcmsk", MRM1r, MRM1m>;
2299 defm BLCS : tbm_binary_intr<0x01, "blcs", MRM3r, MRM3m>;
2300 defm BLSFILL : tbm_binary_intr<0x01, "blsfill", MRM2r, MRM2m>;
2301 defm BLSIC : tbm_binary_intr<0x01, "blsic", MRM6r, MRM6m>;
2302 defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
2303 defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
2306 //===----------------------------------------------------------------------===//
2307 // Pattern fragments to auto generate TBM instructions.
2308 //===----------------------------------------------------------------------===//
2310 let Predicates = [HasTBM] in {
2311 def : Pat<(X86bextr GR32:$src1, (i32 imm:$src2)),
2312 (BEXTRI32ri GR32:$src1, imm:$src2)>;
2313 def : Pat<(X86bextr (loadi32 addr:$src1), (i32 imm:$src2)),
2314 (BEXTRI32mi addr:$src1, imm:$src2)>;
2315 def : Pat<(X86bextr GR64:$src1, i64immSExt32:$src2),
2316 (BEXTRI64ri GR64:$src1, i64immSExt32:$src2)>;
2317 def : Pat<(X86bextr (loadi64 addr:$src1), i64immSExt32:$src2),
2318 (BEXTRI64mi addr:$src1, i64immSExt32:$src2)>;
2320 // FIXME: patterns for the load versions are not implemented
2321 def : Pat<(and GR32:$src, (add GR32:$src, 1)),
2322 (BLCFILL32rr GR32:$src)>;
2323 def : Pat<(and GR64:$src, (add GR64:$src, 1)),
2324 (BLCFILL64rr GR64:$src)>;
2326 def : Pat<(or GR32:$src, (not (add GR32:$src, 1))),
2327 (BLCI32rr GR32:$src)>;
2328 def : Pat<(or GR64:$src, (not (add GR64:$src, 1))),
2329 (BLCI64rr GR64:$src)>;
2331 // Extra patterns because opt can optimize the above patterns to this.
2332 def : Pat<(or GR32:$src, (sub -2, GR32:$src)),
2333 (BLCI32rr GR32:$src)>;
2334 def : Pat<(or GR64:$src, (sub -2, GR64:$src)),
2335 (BLCI64rr GR64:$src)>;
2337 def : Pat<(and (not GR32:$src), (add GR32:$src, 1)),
2338 (BLCIC32rr GR32:$src)>;
2339 def : Pat<(and (not GR64:$src), (add GR64:$src, 1)),
2340 (BLCIC64rr GR64:$src)>;
2342 def : Pat<(xor GR32:$src, (add GR32:$src, 1)),
2343 (BLCMSK32rr GR32:$src)>;
2344 def : Pat<(xor GR64:$src, (add GR64:$src, 1)),
2345 (BLCMSK64rr GR64:$src)>;
2347 def : Pat<(or GR32:$src, (add GR32:$src, 1)),
2348 (BLCS32rr GR32:$src)>;
2349 def : Pat<(or GR64:$src, (add GR64:$src, 1)),
2350 (BLCS64rr GR64:$src)>;
2352 def : Pat<(or GR32:$src, (add GR32:$src, -1)),
2353 (BLSFILL32rr GR32:$src)>;
2354 def : Pat<(or GR64:$src, (add GR64:$src, -1)),
2355 (BLSFILL64rr GR64:$src)>;
2357 def : Pat<(or (not GR32:$src), (add GR32:$src, -1)),
2358 (BLSIC32rr GR32:$src)>;
2359 def : Pat<(or (not GR64:$src), (add GR64:$src, -1)),
2360 (BLSIC64rr GR64:$src)>;
2362 def : Pat<(or (not GR32:$src), (add GR32:$src, 1)),
2363 (T1MSKC32rr GR32:$src)>;
2364 def : Pat<(or (not GR64:$src), (add GR64:$src, 1)),
2365 (T1MSKC64rr GR64:$src)>;
2367 def : Pat<(and (not GR32:$src), (add GR32:$src, -1)),
2368 (TZMSK32rr GR32:$src)>;
2369 def : Pat<(and (not GR64:$src), (add GR64:$src, -1)),
2370 (TZMSK64rr GR64:$src)>;
2373 //===----------------------------------------------------------------------===//
2375 //===----------------------------------------------------------------------===//
2377 include "X86InstrArithmetic.td"
2378 include "X86InstrCMovSetCC.td"
2379 include "X86InstrExtension.td"
2380 include "X86InstrControl.td"
2381 include "X86InstrShiftRotate.td"
2383 // X87 Floating Point Stack.
2384 include "X86InstrFPStack.td"
2386 // SIMD support (SSE, MMX and AVX)
2387 include "X86InstrFragmentsSIMD.td"
2389 // FMA - Fused Multiply-Add support (requires FMA)
2390 include "X86InstrFMA.td"
2393 include "X86InstrXOP.td"
2395 // SSE, MMX and 3DNow! vector support.
2396 include "X86InstrSSE.td"
2397 include "X86InstrAVX512.td"
2398 include "X86InstrMMX.td"
2399 include "X86Instr3DNow.td"
2401 include "X86InstrVMX.td"
2402 include "X86InstrSVM.td"
2404 include "X86InstrTSX.td"
2405 include "X86InstrSGX.td"
2407 // System instructions.
2408 include "X86InstrSystem.td"
2410 // Compiler Pseudo Instructions and Pat Patterns
2411 include "X86InstrCompiler.td"
2413 //===----------------------------------------------------------------------===//
2414 // Assembler Mnemonic Aliases
2415 //===----------------------------------------------------------------------===//
2417 def : MnemonicAlias<"call", "callw", "att">, Requires<[In16BitMode]>;
2418 def : MnemonicAlias<"call", "calll", "att">, Requires<[In32BitMode]>;
2419 def : MnemonicAlias<"call", "callq", "att">, Requires<[In64BitMode]>;
2421 def : MnemonicAlias<"cbw", "cbtw", "att">;
2422 def : MnemonicAlias<"cwde", "cwtl", "att">;
2423 def : MnemonicAlias<"cwd", "cwtd", "att">;
2424 def : MnemonicAlias<"cdq", "cltd", "att">;
2425 def : MnemonicAlias<"cdqe", "cltq", "att">;
2426 def : MnemonicAlias<"cqo", "cqto", "att">;
2428 // In 64-bit mode lret maps to lretl; it is not ambiguous with lretq.
2429 def : MnemonicAlias<"lret", "lretw", "att">, Requires<[In16BitMode]>;
2430 def : MnemonicAlias<"lret", "lretl", "att">, Requires<[Not16BitMode]>;
2432 def : MnemonicAlias<"leavel", "leave", "att">, Requires<[Not64BitMode]>;
2433 def : MnemonicAlias<"leaveq", "leave", "att">, Requires<[In64BitMode]>;
2435 def : MnemonicAlias<"loopz", "loope", "att">;
2436 def : MnemonicAlias<"loopnz", "loopne", "att">;
2438 def : MnemonicAlias<"pop", "popw", "att">, Requires<[In16BitMode]>;
2439 def : MnemonicAlias<"pop", "popl", "att">, Requires<[In32BitMode]>;
2440 def : MnemonicAlias<"pop", "popq", "att">, Requires<[In64BitMode]>;
2441 def : MnemonicAlias<"popf", "popfw", "att">, Requires<[In16BitMode]>;
2442 def : MnemonicAlias<"popf", "popfl", "att">, Requires<[In32BitMode]>;
2443 def : MnemonicAlias<"popf", "popfq", "att">, Requires<[In64BitMode]>;
2444 def : MnemonicAlias<"popfd", "popfl", "att">;
2446 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
2447 // all modes. However: "push (addr)" and "push $42" should default to
2448 // pushl/pushq depending on the current mode. Similar for "pop %bx"
2449 def : MnemonicAlias<"push", "pushw", "att">, Requires<[In16BitMode]>;
2450 def : MnemonicAlias<"push", "pushl", "att">, Requires<[In32BitMode]>;
2451 def : MnemonicAlias<"push", "pushq", "att">, Requires<[In64BitMode]>;
2452 def : MnemonicAlias<"pushf", "pushfw", "att">, Requires<[In16BitMode]>;
2453 def : MnemonicAlias<"pushf", "pushfl", "att">, Requires<[In32BitMode]>;
2454 def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>;
2455 def : MnemonicAlias<"pushfd", "pushfl", "att">;
2457 def : MnemonicAlias<"popad", "popal", "intel">, Requires<[Not64BitMode]>;
2458 def : MnemonicAlias<"pushad", "pushal", "intel">, Requires<[Not64BitMode]>;
2459 def : MnemonicAlias<"popa", "popaw", "intel">, Requires<[In16BitMode]>;
2460 def : MnemonicAlias<"pusha", "pushaw", "intel">, Requires<[In16BitMode]>;
2461 def : MnemonicAlias<"popa", "popal", "intel">, Requires<[In32BitMode]>;
2462 def : MnemonicAlias<"pusha", "pushal", "intel">, Requires<[In32BitMode]>;
2464 def : MnemonicAlias<"popa", "popaw", "att">, Requires<[In16BitMode]>;
2465 def : MnemonicAlias<"pusha", "pushaw", "att">, Requires<[In16BitMode]>;
2466 def : MnemonicAlias<"popa", "popal", "att">, Requires<[In32BitMode]>;
2467 def : MnemonicAlias<"pusha", "pushal", "att">, Requires<[In32BitMode]>;
2469 def : MnemonicAlias<"repe", "rep", "att">;
2470 def : MnemonicAlias<"repz", "rep", "att">;
2471 def : MnemonicAlias<"repnz", "repne", "att">;
2473 def : MnemonicAlias<"ret", "retw", "att">, Requires<[In16BitMode]>;
2474 def : MnemonicAlias<"ret", "retl", "att">, Requires<[In32BitMode]>;
2475 def : MnemonicAlias<"ret", "retq", "att">, Requires<[In64BitMode]>;
2477 def : MnemonicAlias<"salb", "shlb", "att">;
2478 def : MnemonicAlias<"salw", "shlw", "att">;
2479 def : MnemonicAlias<"sall", "shll", "att">;
2480 def : MnemonicAlias<"salq", "shlq", "att">;
2482 def : MnemonicAlias<"smovb", "movsb", "att">;
2483 def : MnemonicAlias<"smovw", "movsw", "att">;
2484 def : MnemonicAlias<"smovl", "movsl", "att">;
2485 def : MnemonicAlias<"smovq", "movsq", "att">;
2487 def : MnemonicAlias<"ud2a", "ud2", "att">;
2488 def : MnemonicAlias<"verrw", "verr", "att">;
2490 // System instruction aliases.
2491 def : MnemonicAlias<"iret", "iretw", "att">, Requires<[In16BitMode]>;
2492 def : MnemonicAlias<"iret", "iretl", "att">, Requires<[Not16BitMode]>;
2493 def : MnemonicAlias<"sysret", "sysretl", "att">;
2494 def : MnemonicAlias<"sysexit", "sysexitl", "att">;
2496 def : MnemonicAlias<"lgdt", "lgdtw", "att">, Requires<[In16BitMode]>;
2497 def : MnemonicAlias<"lgdt", "lgdtl", "att">, Requires<[In32BitMode]>;
2498 def : MnemonicAlias<"lgdt", "lgdtq", "att">, Requires<[In64BitMode]>;
2499 def : MnemonicAlias<"lidt", "lidtw", "att">, Requires<[In16BitMode]>;
2500 def : MnemonicAlias<"lidt", "lidtl", "att">, Requires<[In32BitMode]>;
2501 def : MnemonicAlias<"lidt", "lidtq", "att">, Requires<[In64BitMode]>;
2502 def : MnemonicAlias<"sgdt", "sgdtw", "att">, Requires<[In16BitMode]>;
2503 def : MnemonicAlias<"sgdt", "sgdtl", "att">, Requires<[In32BitMode]>;
2504 def : MnemonicAlias<"sgdt", "sgdtq", "att">, Requires<[In64BitMode]>;
2505 def : MnemonicAlias<"sidt", "sidtw", "att">, Requires<[In16BitMode]>;
2506 def : MnemonicAlias<"sidt", "sidtl", "att">, Requires<[In32BitMode]>;
2507 def : MnemonicAlias<"sidt", "sidtq", "att">, Requires<[In64BitMode]>;
2510 // Floating point stack aliases.
2511 def : MnemonicAlias<"fcmovz", "fcmove", "att">;
2512 def : MnemonicAlias<"fcmova", "fcmovnbe", "att">;
2513 def : MnemonicAlias<"fcmovnae", "fcmovb", "att">;
2514 def : MnemonicAlias<"fcmovna", "fcmovbe", "att">;
2515 def : MnemonicAlias<"fcmovae", "fcmovnb", "att">;
2516 def : MnemonicAlias<"fcomip", "fcompi", "att">;
2517 def : MnemonicAlias<"fildq", "fildll", "att">;
2518 def : MnemonicAlias<"fistpq", "fistpll", "att">;
2519 def : MnemonicAlias<"fisttpq", "fisttpll", "att">;
2520 def : MnemonicAlias<"fldcww", "fldcw", "att">;
2521 def : MnemonicAlias<"fnstcww", "fnstcw", "att">;
2522 def : MnemonicAlias<"fnstsww", "fnstsw", "att">;
2523 def : MnemonicAlias<"fucomip", "fucompi", "att">;
2524 def : MnemonicAlias<"fwait", "wait", "att">;
2527 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond,
2529 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
2530 !strconcat(Prefix, NewCond, Suffix), VariantName>;
2532 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
2533 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
2534 /// example "setz" -> "sete".
2535 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix,
2537 def C : CondCodeAlias<Prefix, Suffix, "c", "b", V>; // setc -> setb
2538 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e", V>; // setz -> sete
2539 def NA : CondCodeAlias<Prefix, Suffix, "na", "be", V>; // setna -> setbe
2540 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae", V>; // setnb -> setae
2541 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae", V>; // setnc -> setae
2542 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le", V>; // setng -> setle
2543 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge", V>; // setnl -> setge
2544 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne", V>; // setnz -> setne
2545 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p", V>; // setpe -> setp
2546 def PO : CondCodeAlias<Prefix, Suffix, "po", "np", V>; // setpo -> setnp
2548 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b", V>; // setnae -> setb
2549 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a", V>; // setnbe -> seta
2550 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l", V>; // setnge -> setl
2551 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g", V>; // setnle -> setg
2554 // Aliases for set<CC>
2555 defm : IntegerCondCodeMnemonicAlias<"set", "">;
2556 // Aliases for j<CC>
2557 defm : IntegerCondCodeMnemonicAlias<"j", "">;
2558 // Aliases for cmov<CC>{w,l,q}
2559 defm : IntegerCondCodeMnemonicAlias<"cmov", "w", "att">;
2560 defm : IntegerCondCodeMnemonicAlias<"cmov", "l", "att">;
2561 defm : IntegerCondCodeMnemonicAlias<"cmov", "q", "att">;
2562 // No size suffix for intel-style asm.
2563 defm : IntegerCondCodeMnemonicAlias<"cmov", "", "intel">;
2566 //===----------------------------------------------------------------------===//
2567 // Assembler Instruction Aliases
2568 //===----------------------------------------------------------------------===//
2570 // aad/aam default to base 10 if no operand is specified.
2571 def : InstAlias<"aad", (AAD8i8 10)>;
2572 def : InstAlias<"aam", (AAM8i8 10)>;
2574 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
2575 // Likewise for btc/btr/bts.
2576 def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
2577 (BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2578 def : InstAlias<"btc {$imm, $mem|$mem, $imm}",
2579 (BTC32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2580 def : InstAlias<"btr {$imm, $mem|$mem, $imm}",
2581 (BTR32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2582 def : InstAlias<"bts {$imm, $mem|$mem, $imm}",
2583 (BTS32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2586 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
2587 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
2588 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
2589 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
2591 // lods aliases. Accept the destination being omitted because it's implicit
2592 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2593 // in the destination.
2594 def : InstAlias<"lodsb $src", (LODSB srcidx8:$src), 0>;
2595 def : InstAlias<"lodsw $src", (LODSW srcidx16:$src), 0>;
2596 def : InstAlias<"lods{l|d} $src", (LODSL srcidx32:$src), 0>;
2597 def : InstAlias<"lodsq $src", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2598 def : InstAlias<"lods {$src, %al|al, $src}", (LODSB srcidx8:$src), 0>;
2599 def : InstAlias<"lods {$src, %ax|ax, $src}", (LODSW srcidx16:$src), 0>;
2600 def : InstAlias<"lods {$src, %eax|eax, $src}", (LODSL srcidx32:$src), 0>;
2601 def : InstAlias<"lods {$src, %rax|rax, $src}", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2603 // stos aliases. Accept the source being omitted because it's implicit in
2604 // the mnemonic, or the mnemonic suffix being omitted because it's implicit
2606 def : InstAlias<"stosb $dst", (STOSB dstidx8:$dst), 0>;
2607 def : InstAlias<"stosw $dst", (STOSW dstidx16:$dst), 0>;
2608 def : InstAlias<"stos{l|d} $dst", (STOSL dstidx32:$dst), 0>;
2609 def : InstAlias<"stosq $dst", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2610 def : InstAlias<"stos {%al, $dst|$dst, al}", (STOSB dstidx8:$dst), 0>;
2611 def : InstAlias<"stos {%ax, $dst|$dst, ax}", (STOSW dstidx16:$dst), 0>;
2612 def : InstAlias<"stos {%eax, $dst|$dst, eax}", (STOSL dstidx32:$dst), 0>;
2613 def : InstAlias<"stos {%rax, $dst|$dst, rax}", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2615 // scas aliases. Accept the destination being omitted because it's implicit
2616 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2617 // in the destination.
2618 def : InstAlias<"scasb $dst", (SCASB dstidx8:$dst), 0>;
2619 def : InstAlias<"scasw $dst", (SCASW dstidx16:$dst), 0>;
2620 def : InstAlias<"scas{l|d} $dst", (SCASL dstidx32:$dst), 0>;
2621 def : InstAlias<"scasq $dst", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2622 def : InstAlias<"scas {$dst, %al|al, $dst}", (SCASB dstidx8:$dst), 0>;
2623 def : InstAlias<"scas {$dst, %ax|ax, $dst}", (SCASW dstidx16:$dst), 0>;
2624 def : InstAlias<"scas {$dst, %eax|eax, $dst}", (SCASL dstidx32:$dst), 0>;
2625 def : InstAlias<"scas {$dst, %rax|rax, $dst}", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2627 // div and idiv aliases for explicit A register.
2628 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8r GR8 :$src)>;
2629 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16r GR16:$src)>;
2630 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32r GR32:$src)>;
2631 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64r GR64:$src)>;
2632 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8m i8mem :$src)>;
2633 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16m i16mem:$src)>;
2634 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32m i32mem:$src)>;
2635 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64m i64mem:$src)>;
2636 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8r GR8 :$src)>;
2637 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16r GR16:$src)>;
2638 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32r GR32:$src)>;
2639 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64r GR64:$src)>;
2640 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8m i8mem :$src)>;
2641 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16m i16mem:$src)>;
2642 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32m i32mem:$src)>;
2643 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64m i64mem:$src)>;
2647 // Various unary fpstack operations default to operating on on ST1.
2648 // For example, "fxch" -> "fxch %st(1)"
2649 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
2650 def : InstAlias<"fsub{|r}p", (SUBR_FPrST0 ST1), 0>;
2651 def : InstAlias<"fsub{r|}p", (SUB_FPrST0 ST1), 0>;
2652 def : InstAlias<"fmulp", (MUL_FPrST0 ST1), 0>;
2653 def : InstAlias<"fdiv{|r}p", (DIVR_FPrST0 ST1), 0>;
2654 def : InstAlias<"fdiv{r|}p", (DIV_FPrST0 ST1), 0>;
2655 def : InstAlias<"fxch", (XCH_F ST1), 0>;
2656 def : InstAlias<"fcom", (COM_FST0r ST1), 0>;
2657 def : InstAlias<"fcomp", (COMP_FST0r ST1), 0>;
2658 def : InstAlias<"fcomi", (COM_FIr ST1), 0>;
2659 def : InstAlias<"fcompi", (COM_FIPr ST1), 0>;
2660 def : InstAlias<"fucom", (UCOM_Fr ST1), 0>;
2661 def : InstAlias<"fucomp", (UCOM_FPr ST1), 0>;
2662 def : InstAlias<"fucomi", (UCOM_FIr ST1), 0>;
2663 def : InstAlias<"fucompi", (UCOM_FIPr ST1), 0>;
2665 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
2666 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
2667 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
2669 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
2670 def : InstAlias<!strconcat(Mnemonic, "\t{$op, %st(0)|st(0), $op}"),
2671 (Inst RST:$op), EmitAlias>;
2672 def : InstAlias<!strconcat(Mnemonic, "\t{%st(0), %st(0)|st(0), st(0)}"),
2673 (Inst ST0), EmitAlias>;
2676 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
2677 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
2678 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
2679 defm : FpUnaryAlias<"fsub{|r}p", SUBR_FPrST0>;
2680 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
2681 defm : FpUnaryAlias<"fsub{r|}p", SUB_FPrST0>;
2682 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
2683 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
2684 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
2685 defm : FpUnaryAlias<"fdiv{|r}p", DIVR_FPrST0>;
2686 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
2687 defm : FpUnaryAlias<"fdiv{r|}p", DIV_FPrST0>;
2688 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
2689 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
2690 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
2691 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
2694 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
2695 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
2696 // solely because gas supports it.
2697 def : InstAlias<"faddp\t{%st(0), $op|$op, st(0)}", (ADD_FPrST0 RST:$op), 0>;
2698 def : InstAlias<"fmulp\t{%st(0), $op|$op, st(0)}", (MUL_FPrST0 RST:$op)>;
2699 def : InstAlias<"fsub{|r}p\t{%st(0), $op|$op, st(0)}", (SUBR_FPrST0 RST:$op)>;
2700 def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>;
2701 def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>;
2702 def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>;
2704 // We accept "fnstsw %eax" even though it only writes %ax.
2705 def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>;
2706 def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>;
2707 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
2709 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
2710 // this is compatible with what GAS does.
2711 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2712 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2713 def : InstAlias<"lcall *$dst", (FARCALL32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2714 def : InstAlias<"ljmp *$dst", (FARJMP32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2715 def : InstAlias<"lcall $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2716 def : InstAlias<"ljmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2717 def : InstAlias<"lcall *$dst", (FARCALL16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2718 def : InstAlias<"ljmp *$dst", (FARJMP16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2720 def : InstAlias<"call *$dst", (CALL64m i16mem:$dst), 0>, Requires<[In64BitMode]>;
2721 def : InstAlias<"jmp *$dst", (JMP64m i16mem:$dst), 0>, Requires<[In64BitMode]>;
2722 def : InstAlias<"call *$dst", (CALL32m i16mem:$dst), 0>, Requires<[In32BitMode]>;
2723 def : InstAlias<"jmp *$dst", (JMP32m i16mem:$dst), 0>, Requires<[In32BitMode]>;
2724 def : InstAlias<"call *$dst", (CALL16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2725 def : InstAlias<"jmp *$dst", (JMP16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2728 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
2729 def : InstAlias<"imulw $imm, $r", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm)>;
2730 def : InstAlias<"imulw $imm, $r", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm)>;
2731 def : InstAlias<"imull $imm, $r", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm)>;
2732 def : InstAlias<"imull $imm, $r", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm)>;
2733 def : InstAlias<"imulq $imm, $r",(IMUL64rri32 GR64:$r, GR64:$r,i64i32imm:$imm)>;
2734 def : InstAlias<"imulq $imm, $r", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm)>;
2736 // inb %dx -> inb %al, %dx
2737 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
2738 def : InstAlias<"inw\t{%dx|dx}", (IN16rr), 0>;
2739 def : InstAlias<"inl\t{%dx|dx}", (IN32rr), 0>;
2740 def : InstAlias<"inb\t$port", (IN8ri i8imm:$port), 0>;
2741 def : InstAlias<"inw\t$port", (IN16ri i8imm:$port), 0>;
2742 def : InstAlias<"inl\t$port", (IN32ri i8imm:$port), 0>;
2745 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
2746 def : InstAlias<"call $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2747 def : InstAlias<"jmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2748 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2749 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2750 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
2751 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
2752 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2753 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2755 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
2756 // the move. All segment/mem forms are equivalent, this has the shortest
2758 def : InstAlias<"mov $mem, $seg", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem), 0>;
2759 def : InstAlias<"mov $seg, $mem", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg), 0>;
2761 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
2762 def : InstAlias<"movq $imm, $reg", (MOV64ri GR64:$reg, i64imm:$imm), 0>;
2764 // Match 'movq GR64, MMX' as an alias for movd.
2765 def : InstAlias<"movq $src, $dst",
2766 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
2767 def : InstAlias<"movq $src, $dst",
2768 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
2771 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
2772 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
2773 def : InstAlias<"movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
2774 def : InstAlias<"movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
2775 def : InstAlias<"movsx $src, $dst", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
2776 def : InstAlias<"movsx $src, $dst", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
2777 def : InstAlias<"movsx $src, $dst", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
2780 def : InstAlias<"movzx $src, $dst", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
2781 def : InstAlias<"movzx $src, $dst", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
2782 def : InstAlias<"movzx $src, $dst", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
2783 def : InstAlias<"movzx $src, $dst", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
2784 def : InstAlias<"movzx $src, $dst", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
2785 def : InstAlias<"movzx $src, $dst", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
2786 // Note: No GR32->GR64 movzx form.
2788 // outb %dx -> outb %al, %dx
2789 def : InstAlias<"outb\t{%dx|dx}", (OUT8rr), 0>;
2790 def : InstAlias<"outw\t{%dx|dx}", (OUT16rr), 0>;
2791 def : InstAlias<"outl\t{%dx|dx}", (OUT32rr), 0>;
2792 def : InstAlias<"outb\t$port", (OUT8ir i8imm:$port), 0>;
2793 def : InstAlias<"outw\t$port", (OUT16ir i8imm:$port), 0>;
2794 def : InstAlias<"outl\t$port", (OUT32ir i8imm:$port), 0>;
2796 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
2797 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
2798 // errors, since its encoding is the most compact.
2799 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem), 0>;
2801 // shld/shrd op,op -> shld op, op, CL
2802 def : InstAlias<"shld{w}\t{$r2, $r1|$r1, $r2}", (SHLD16rrCL GR16:$r1, GR16:$r2), 0>;
2803 def : InstAlias<"shld{l}\t{$r2, $r1|$r1, $r2}", (SHLD32rrCL GR32:$r1, GR32:$r2), 0>;
2804 def : InstAlias<"shld{q}\t{$r2, $r1|$r1, $r2}", (SHLD64rrCL GR64:$r1, GR64:$r2), 0>;
2805 def : InstAlias<"shrd{w}\t{$r2, $r1|$r1, $r2}", (SHRD16rrCL GR16:$r1, GR16:$r2), 0>;
2806 def : InstAlias<"shrd{l}\t{$r2, $r1|$r1, $r2}", (SHRD32rrCL GR32:$r1, GR32:$r2), 0>;
2807 def : InstAlias<"shrd{q}\t{$r2, $r1|$r1, $r2}", (SHRD64rrCL GR64:$r1, GR64:$r2), 0>;
2809 def : InstAlias<"shld{w}\t{$reg, $mem|$mem, $reg}", (SHLD16mrCL i16mem:$mem, GR16:$reg), 0>;
2810 def : InstAlias<"shld{l}\t{$reg, $mem|$mem, $reg}", (SHLD32mrCL i32mem:$mem, GR32:$reg), 0>;
2811 def : InstAlias<"shld{q}\t{$reg, $mem|$mem, $reg}", (SHLD64mrCL i64mem:$mem, GR64:$reg), 0>;
2812 def : InstAlias<"shrd{w}\t{$reg, $mem|$mem, $reg}", (SHRD16mrCL i16mem:$mem, GR16:$reg), 0>;
2813 def : InstAlias<"shrd{l}\t{$reg, $mem|$mem, $reg}", (SHRD32mrCL i32mem:$mem, GR32:$reg), 0>;
2814 def : InstAlias<"shrd{q}\t{$reg, $mem|$mem, $reg}", (SHRD64mrCL i64mem:$mem, GR64:$reg), 0>;
2816 /* FIXME: This is disabled because the asm matcher is currently incapable of
2817 * matching a fixed immediate like $1.
2818 // "shl X, $1" is an alias for "shl X".
2819 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
2820 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2821 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
2822 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2823 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
2824 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2825 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
2826 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2827 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
2828 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2829 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
2830 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2831 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
2832 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2833 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
2834 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2835 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
2838 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2839 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2840 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2841 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2844 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2845 def : InstAlias<"test{b}\t{$val, $mem|$mem, $val}",
2846 (TEST8rm GR8 :$val, i8mem :$mem), 0>;
2847 def : InstAlias<"test{w}\t{$val, $mem|$mem, $val}",
2848 (TEST16rm GR16:$val, i16mem:$mem), 0>;
2849 def : InstAlias<"test{l}\t{$val, $mem|$mem, $val}",
2850 (TEST32rm GR32:$val, i32mem:$mem), 0>;
2851 def : InstAlias<"test{q}\t{$val, $mem|$mem, $val}",
2852 (TEST64rm GR64:$val, i64mem:$mem), 0>;
2854 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2855 def : InstAlias<"xchg{b}\t{$mem, $val|$val, $mem}",
2856 (XCHG8rm GR8 :$val, i8mem :$mem), 0>;
2857 def : InstAlias<"xchg{w}\t{$mem, $val|$val, $mem}",
2858 (XCHG16rm GR16:$val, i16mem:$mem), 0>;
2859 def : InstAlias<"xchg{l}\t{$mem, $val|$val, $mem}",
2860 (XCHG32rm GR32:$val, i32mem:$mem), 0>;
2861 def : InstAlias<"xchg{q}\t{$mem, $val|$val, $mem}",
2862 (XCHG64rm GR64:$val, i64mem:$mem), 0>;
2864 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2865 def : InstAlias<"xchg{w}\t{%ax, $src|$src, ax}", (XCHG16ar GR16:$src), 0>;
2866 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2867 (XCHG32ar GR32:$src), 0>, Requires<[Not64BitMode]>;
2868 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2869 (XCHG32ar64 GR32_NOAX:$src), 0>, Requires<[In64BitMode]>;
2870 def : InstAlias<"xchg{q}\t{%rax, $src|$src, rax}", (XCHG64ar GR64:$src), 0>;