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,
36 SDTCisInt<0>, SDTCisVT<1, i32>]>;
38 def SDTBinaryArithWithFlags : SDTypeProfile<2, 2,
41 SDTCisInt<0>, SDTCisVT<1, i32>]>;
43 // SDTBinaryArithWithFlagsInOut - RES1, EFLAGS = op LHS, RHS, EFLAGS
44 def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
50 // RES1, RES2, FLAGS = op LHS, RHS
51 def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
55 SDTCisInt<0>, SDTCisVT<1, i32>]>;
56 def SDTX86BrCond : SDTypeProfile<0, 3,
57 [SDTCisVT<0, OtherVT>,
58 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
60 def SDTX86SetCC : SDTypeProfile<1, 2,
62 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
63 def SDTX86SetCC_C : SDTypeProfile<1, 2,
65 SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
67 def SDTX86sahf : SDTypeProfile<1, 1, [SDTCisVT<0, i32>, SDTCisVT<1, i8>]>;
69 def SDTX86rdrand : SDTypeProfile<2, 0, [SDTCisInt<0>, SDTCisVT<1, i32>]>;
71 def SDTX86cas : SDTypeProfile<0, 3, [SDTCisPtrTy<0>, SDTCisInt<1>,
73 def SDTX86caspair : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
75 def SDTX86atomicBinary : SDTypeProfile<2, 3, [SDTCisInt<0>, SDTCisInt<1>,
76 SDTCisPtrTy<2>, SDTCisInt<3>,SDTCisInt<4>]>;
77 def SDTX86Ret : SDTypeProfile<0, -1, [SDTCisVT<0, i16>]>;
79 def SDT_X86CallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
80 def SDT_X86CallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
83 def SDT_X86Call : SDTypeProfile<0, -1, [SDTCisVT<0, iPTR>]>;
85 def SDT_X86VASTART_SAVE_XMM_REGS : SDTypeProfile<0, -1, [SDTCisVT<0, i8>,
89 def SDT_X86VAARG_64 : SDTypeProfile<1, -1, [SDTCisPtrTy<0>,
95 def SDTX86RepStr : SDTypeProfile<0, 1, [SDTCisVT<0, OtherVT>]>;
97 def SDTX86Void : SDTypeProfile<0, 0, []>;
99 def SDTX86Wrapper : SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>, SDTCisPtrTy<0>]>;
101 def SDT_X86TLSADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
103 def SDT_X86TLSBASEADDR : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
105 def SDT_X86TLSCALL : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
107 def SDT_X86SEG_ALLOCA : SDTypeProfile<1, 1, [SDTCisVT<0, iPTR>, SDTCisVT<1, iPTR>]>;
109 def SDT_X86WIN_FTOL : SDTypeProfile<0, 1, [SDTCisFP<0>]>;
111 def SDT_X86EHRET : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
113 def SDT_X86TCRET : SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisVT<1, i32>]>;
115 def SDT_X86MEMBARRIER : SDTypeProfile<0, 0, []>;
117 def X86MemBarrier : SDNode<"X86ISD::MEMBARRIER", SDT_X86MEMBARRIER,
118 [SDNPHasChain,SDNPSideEffect]>;
119 def X86MFence : SDNode<"X86ISD::MFENCE", SDT_X86MEMBARRIER,
121 def X86SFence : SDNode<"X86ISD::SFENCE", SDT_X86MEMBARRIER,
123 def X86LFence : SDNode<"X86ISD::LFENCE", SDT_X86MEMBARRIER,
127 def X86bsf : SDNode<"X86ISD::BSF", SDTUnaryArithWithFlags>;
128 def X86bsr : SDNode<"X86ISD::BSR", SDTUnaryArithWithFlags>;
129 def X86shld : SDNode<"X86ISD::SHLD", SDTIntShiftDOp>;
130 def X86shrd : SDNode<"X86ISD::SHRD", SDTIntShiftDOp>;
132 def X86cmp : SDNode<"X86ISD::CMP" , SDTX86CmpTest>;
133 def X86bt : SDNode<"X86ISD::BT", SDTX86CmpTest>;
135 def X86cmov : SDNode<"X86ISD::CMOV", SDTX86Cmov>;
136 def X86brcond : SDNode<"X86ISD::BRCOND", SDTX86BrCond,
138 def X86setcc : SDNode<"X86ISD::SETCC", SDTX86SetCC>;
139 def X86setcc_c : SDNode<"X86ISD::SETCC_CARRY", SDTX86SetCC_C>;
141 def X86sahf : SDNode<"X86ISD::SAHF", SDTX86sahf>;
143 def X86rdrand : SDNode<"X86ISD::RDRAND", SDTX86rdrand,
144 [SDNPHasChain, SDNPSideEffect]>;
146 def X86rdseed : SDNode<"X86ISD::RDSEED", SDTX86rdrand,
147 [SDNPHasChain, SDNPSideEffect]>;
149 def X86cas : SDNode<"X86ISD::LCMPXCHG_DAG", SDTX86cas,
150 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
151 SDNPMayLoad, SDNPMemOperand]>;
152 def X86cas8 : SDNode<"X86ISD::LCMPXCHG8_DAG", SDTX86caspair,
153 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
154 SDNPMayLoad, SDNPMemOperand]>;
155 def X86cas16 : SDNode<"X86ISD::LCMPXCHG16_DAG", SDTX86caspair,
156 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
157 SDNPMayLoad, SDNPMemOperand]>;
159 def X86retflag : SDNode<"X86ISD::RET_FLAG", SDTX86Ret,
160 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
162 def X86vastart_save_xmm_regs :
163 SDNode<"X86ISD::VASTART_SAVE_XMM_REGS",
164 SDT_X86VASTART_SAVE_XMM_REGS,
165 [SDNPHasChain, SDNPVariadic]>;
167 SDNode<"X86ISD::VAARG_64", SDT_X86VAARG_64,
168 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
170 def X86callseq_start :
171 SDNode<"ISD::CALLSEQ_START", SDT_X86CallSeqStart,
172 [SDNPHasChain, SDNPOutGlue]>;
174 SDNode<"ISD::CALLSEQ_END", SDT_X86CallSeqEnd,
175 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
177 def X86call : SDNode<"X86ISD::CALL", SDT_X86Call,
178 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
181 def X86rep_stos: SDNode<"X86ISD::REP_STOS", SDTX86RepStr,
182 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore]>;
183 def X86rep_movs: SDNode<"X86ISD::REP_MOVS", SDTX86RepStr,
184 [SDNPHasChain, SDNPInGlue, SDNPOutGlue, SDNPMayStore,
187 def X86rdtsc : SDNode<"X86ISD::RDTSC_DAG", SDTX86Void,
188 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
189 def X86rdtscp : SDNode<"X86ISD::RDTSCP_DAG", SDTX86Void,
190 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
191 def X86rdpmc : SDNode<"X86ISD::RDPMC_DAG", SDTX86Void,
192 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
194 def X86Wrapper : SDNode<"X86ISD::Wrapper", SDTX86Wrapper>;
195 def X86WrapperRIP : SDNode<"X86ISD::WrapperRIP", SDTX86Wrapper>;
197 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
198 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
200 def X86tlsbaseaddr : SDNode<"X86ISD::TLSBASEADDR", SDT_X86TLSBASEADDR,
201 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
203 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
206 def X86eh_sjlj_setjmp : SDNode<"X86ISD::EH_SJLJ_SETJMP",
207 SDTypeProfile<1, 1, [SDTCisInt<0>,
209 [SDNPHasChain, SDNPSideEffect]>;
210 def X86eh_sjlj_longjmp : SDNode<"X86ISD::EH_SJLJ_LONGJMP",
211 SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>,
212 [SDNPHasChain, SDNPSideEffect]>;
214 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
215 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
217 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
219 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
220 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
222 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
224 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
225 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
227 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
228 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
229 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
231 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
233 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
236 def X86bextr : SDNode<"X86ISD::BEXTR", SDTIntBinOp>;
238 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
240 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
241 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
243 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
246 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
247 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
249 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
250 [SDNPHasChain, SDNPOutGlue]>;
252 //===----------------------------------------------------------------------===//
253 // X86 Operand Definitions.
256 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
257 // the index operand of an address, to conform to x86 encoding restrictions.
258 def ptr_rc_nosp : PointerLikeRegClass<1>;
260 // *mem - Operand definitions for the funky X86 addressing mode operands.
262 def X86MemAsmOperand : AsmOperandClass {
265 let RenderMethod = "addMemOperands" in {
266 def X86Mem8AsmOperand : AsmOperandClass { let Name = "Mem8"; }
267 def X86Mem16AsmOperand : AsmOperandClass { let Name = "Mem16"; }
268 def X86Mem32AsmOperand : AsmOperandClass { let Name = "Mem32"; }
269 def X86Mem64AsmOperand : AsmOperandClass { let Name = "Mem64"; }
270 def X86Mem80AsmOperand : AsmOperandClass { let Name = "Mem80"; }
271 def X86Mem128AsmOperand : AsmOperandClass { let Name = "Mem128"; }
272 def X86Mem256AsmOperand : AsmOperandClass { let Name = "Mem256"; }
273 def X86Mem512AsmOperand : AsmOperandClass { let Name = "Mem512"; }
274 // Gather mem operands
275 def X86MemVX32Operand : AsmOperandClass { let Name = "MemVX32"; }
276 def X86MemVY32Operand : AsmOperandClass { let Name = "MemVY32"; }
277 def X86MemVZ32Operand : AsmOperandClass { let Name = "MemVZ32"; }
278 def X86MemVX64Operand : AsmOperandClass { let Name = "MemVX64"; }
279 def X86MemVY64Operand : AsmOperandClass { let Name = "MemVY64"; }
280 def X86MemVZ64Operand : AsmOperandClass { let Name = "MemVZ64"; }
283 def X86AbsMemAsmOperand : AsmOperandClass {
285 let SuperClasses = [X86MemAsmOperand];
288 class X86MemOperand<string printMethod,
289 AsmOperandClass parserMatchClass = X86MemAsmOperand> : Operand<iPTR> {
290 let PrintMethod = printMethod;
291 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
292 let ParserMatchClass = parserMatchClass;
293 let OperandType = "OPERAND_MEMORY";
296 // Gather mem operands
297 class X86VMemOperand<RegisterClass RC, string printMethod,
298 AsmOperandClass parserMatchClass>
299 : X86MemOperand<printMethod, parserMatchClass> {
300 let MIOperandInfo = (ops ptr_rc, i8imm, RC, i32imm, i8imm);
303 def opaque32mem : X86MemOperand<"printopaquemem">;
304 def opaque48mem : X86MemOperand<"printopaquemem">;
305 def opaque80mem : X86MemOperand<"printopaquemem">;
306 def opaque512mem : X86MemOperand<"printopaquemem">;
308 def i8mem : X86MemOperand<"printi8mem", X86Mem8AsmOperand>;
309 def i16mem : X86MemOperand<"printi16mem", X86Mem16AsmOperand>;
310 def i32mem : X86MemOperand<"printi32mem", X86Mem32AsmOperand>;
311 def i64mem : X86MemOperand<"printi64mem", X86Mem64AsmOperand>;
312 def i128mem : X86MemOperand<"printi128mem", X86Mem128AsmOperand>;
313 def i256mem : X86MemOperand<"printi256mem", X86Mem256AsmOperand>;
314 def i512mem : X86MemOperand<"printi512mem", X86Mem512AsmOperand>;
315 def f32mem : X86MemOperand<"printf32mem", X86Mem32AsmOperand>;
316 def f64mem : X86MemOperand<"printf64mem", X86Mem64AsmOperand>;
317 def f80mem : X86MemOperand<"printf80mem", X86Mem80AsmOperand>;
318 def f128mem : X86MemOperand<"printf128mem", X86Mem128AsmOperand>;
319 def f256mem : X86MemOperand<"printf256mem", X86Mem256AsmOperand>;
320 def f512mem : X86MemOperand<"printf512mem", X86Mem512AsmOperand>;
322 def v512mem : X86VMemOperand<VR512, "printf512mem", X86Mem512AsmOperand>;
324 // Gather mem operands
325 def vx32mem : X86VMemOperand<VR128, "printi32mem", X86MemVX32Operand>;
326 def vy32mem : X86VMemOperand<VR256, "printi32mem", X86MemVY32Operand>;
327 def vx64mem : X86VMemOperand<VR128, "printi64mem", X86MemVX64Operand>;
328 def vy64mem : X86VMemOperand<VR256, "printi64mem", X86MemVY64Operand>;
329 def vy64xmem : X86VMemOperand<VR256X, "printi64mem", X86MemVY64Operand>;
330 def vz32mem : X86VMemOperand<VR512, "printi32mem", X86MemVZ32Operand>;
331 def vz64mem : X86VMemOperand<VR512, "printi64mem", X86MemVZ64Operand>;
333 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
334 // plain GR64, so that it doesn't potentially require a REX prefix.
335 def i8mem_NOREX : Operand<i64> {
336 let PrintMethod = "printi8mem";
337 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
338 let ParserMatchClass = X86Mem8AsmOperand;
339 let OperandType = "OPERAND_MEMORY";
342 // GPRs available for tailcall.
343 // It represents GR32_TC, GR64_TC or GR64_TCW64.
344 def ptr_rc_tailcall : PointerLikeRegClass<2>;
346 // Special i32mem for addresses of load folding tail calls. These are not
347 // allowed to use callee-saved registers since they must be scheduled
348 // after callee-saved register are popped.
349 def i32mem_TC : Operand<i32> {
350 let PrintMethod = "printi32mem";
351 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
353 let ParserMatchClass = X86Mem32AsmOperand;
354 let OperandType = "OPERAND_MEMORY";
357 // Special i64mem for addresses of load folding tail calls. These are not
358 // allowed to use callee-saved registers since they must be scheduled
359 // after callee-saved register are popped.
360 def i64mem_TC : Operand<i64> {
361 let PrintMethod = "printi64mem";
362 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
363 ptr_rc_tailcall, i32imm, i8imm);
364 let ParserMatchClass = X86Mem64AsmOperand;
365 let OperandType = "OPERAND_MEMORY";
368 let OperandType = "OPERAND_PCREL",
369 ParserMatchClass = X86AbsMemAsmOperand,
370 PrintMethod = "printPCRelImm" in {
371 def i32imm_pcrel : Operand<i32>;
372 def i16imm_pcrel : Operand<i16>;
374 // Branch targets have OtherVT type and print as pc-relative values.
375 def brtarget : Operand<OtherVT>;
376 def brtarget8 : Operand<OtherVT>;
380 // Special parsers to detect mode to disambiguate.
381 def X86AbsMem16AsmOperand : AsmOperandClass {
382 let Name = "AbsMem16";
383 let RenderMethod = "addAbsMemOperands";
384 let SuperClasses = [X86AbsMemAsmOperand];
387 def X86AbsMem32AsmOperand : AsmOperandClass {
388 let Name = "AbsMem32";
389 let RenderMethod = "addAbsMemOperands";
390 let SuperClasses = [X86AbsMemAsmOperand];
393 // Branch targets have OtherVT type and print as pc-relative values.
394 let OperandType = "OPERAND_PCREL",
395 PrintMethod = "printPCRelImm" in {
396 let ParserMatchClass = X86AbsMem16AsmOperand in
397 def brtarget16 : Operand<OtherVT>;
398 let ParserMatchClass = X86AbsMem32AsmOperand in
399 def brtarget32 : Operand<OtherVT>;
402 let RenderMethod = "addSrcIdxOperands" in {
403 def X86SrcIdx8Operand : AsmOperandClass {
404 let Name = "SrcIdx8";
405 let SuperClasses = [X86Mem8AsmOperand];
407 def X86SrcIdx16Operand : AsmOperandClass {
408 let Name = "SrcIdx16";
409 let SuperClasses = [X86Mem16AsmOperand];
411 def X86SrcIdx32Operand : AsmOperandClass {
412 let Name = "SrcIdx32";
413 let SuperClasses = [X86Mem32AsmOperand];
415 def X86SrcIdx64Operand : AsmOperandClass {
416 let Name = "SrcIdx64";
417 let SuperClasses = [X86Mem64AsmOperand];
419 } // RenderMethod = "addSrcIdxOperands"
421 let RenderMethod = "addDstIdxOperands" in {
422 def X86DstIdx8Operand : AsmOperandClass {
423 let Name = "DstIdx8";
424 let SuperClasses = [X86Mem8AsmOperand];
426 def X86DstIdx16Operand : AsmOperandClass {
427 let Name = "DstIdx16";
428 let SuperClasses = [X86Mem16AsmOperand];
430 def X86DstIdx32Operand : AsmOperandClass {
431 let Name = "DstIdx32";
432 let SuperClasses = [X86Mem32AsmOperand];
434 def X86DstIdx64Operand : AsmOperandClass {
435 let Name = "DstIdx64";
436 let SuperClasses = [X86Mem64AsmOperand];
438 } // RenderMethod = "addDstIdxOperands"
440 let RenderMethod = "addMemOffsOperands" in {
441 def X86MemOffs16_8AsmOperand : AsmOperandClass {
442 let Name = "MemOffs16_8";
443 let SuperClasses = [X86Mem8AsmOperand];
445 def X86MemOffs16_16AsmOperand : AsmOperandClass {
446 let Name = "MemOffs16_16";
447 let SuperClasses = [X86Mem16AsmOperand];
449 def X86MemOffs16_32AsmOperand : AsmOperandClass {
450 let Name = "MemOffs16_32";
451 let SuperClasses = [X86Mem32AsmOperand];
453 def X86MemOffs32_8AsmOperand : AsmOperandClass {
454 let Name = "MemOffs32_8";
455 let SuperClasses = [X86Mem8AsmOperand];
457 def X86MemOffs32_16AsmOperand : AsmOperandClass {
458 let Name = "MemOffs32_16";
459 let SuperClasses = [X86Mem16AsmOperand];
461 def X86MemOffs32_32AsmOperand : AsmOperandClass {
462 let Name = "MemOffs32_32";
463 let SuperClasses = [X86Mem32AsmOperand];
465 def X86MemOffs32_64AsmOperand : AsmOperandClass {
466 let Name = "MemOffs32_64";
467 let SuperClasses = [X86Mem64AsmOperand];
469 def X86MemOffs64_8AsmOperand : AsmOperandClass {
470 let Name = "MemOffs64_8";
471 let SuperClasses = [X86Mem8AsmOperand];
473 def X86MemOffs64_16AsmOperand : AsmOperandClass {
474 let Name = "MemOffs64_16";
475 let SuperClasses = [X86Mem16AsmOperand];
477 def X86MemOffs64_32AsmOperand : AsmOperandClass {
478 let Name = "MemOffs64_32";
479 let SuperClasses = [X86Mem32AsmOperand];
481 def X86MemOffs64_64AsmOperand : AsmOperandClass {
482 let Name = "MemOffs64_64";
483 let SuperClasses = [X86Mem64AsmOperand];
485 } // RenderMethod = "addMemOffsOperands"
487 class X86SrcIdxOperand<string printMethod, AsmOperandClass parserMatchClass>
488 : X86MemOperand<printMethod, parserMatchClass> {
489 let MIOperandInfo = (ops ptr_rc, i8imm);
492 class X86DstIdxOperand<string printMethod, AsmOperandClass parserMatchClass>
493 : X86MemOperand<printMethod, parserMatchClass> {
494 let MIOperandInfo = (ops ptr_rc);
497 def srcidx8 : X86SrcIdxOperand<"printSrcIdx8", X86SrcIdx8Operand>;
498 def srcidx16 : X86SrcIdxOperand<"printSrcIdx16", X86SrcIdx16Operand>;
499 def srcidx32 : X86SrcIdxOperand<"printSrcIdx32", X86SrcIdx32Operand>;
500 def srcidx64 : X86SrcIdxOperand<"printSrcIdx64", X86SrcIdx64Operand>;
501 def dstidx8 : X86DstIdxOperand<"printDstIdx8", X86DstIdx8Operand>;
502 def dstidx16 : X86DstIdxOperand<"printDstIdx16", X86DstIdx16Operand>;
503 def dstidx32 : X86DstIdxOperand<"printDstIdx32", X86DstIdx32Operand>;
504 def dstidx64 : X86DstIdxOperand<"printDstIdx64", X86DstIdx64Operand>;
506 class X86MemOffsOperand<Operand immOperand, string printMethod,
507 AsmOperandClass parserMatchClass>
508 : X86MemOperand<printMethod, parserMatchClass> {
509 let MIOperandInfo = (ops immOperand, i8imm);
512 def offset16_8 : X86MemOffsOperand<i16imm, "printMemOffs8",
513 X86MemOffs16_8AsmOperand>;
514 def offset16_16 : X86MemOffsOperand<i16imm, "printMemOffs16",
515 X86MemOffs16_16AsmOperand>;
516 def offset16_32 : X86MemOffsOperand<i16imm, "printMemOffs32",
517 X86MemOffs16_32AsmOperand>;
518 def offset32_8 : X86MemOffsOperand<i32imm, "printMemOffs8",
519 X86MemOffs32_8AsmOperand>;
520 def offset32_16 : X86MemOffsOperand<i32imm, "printMemOffs16",
521 X86MemOffs32_16AsmOperand>;
522 def offset32_32 : X86MemOffsOperand<i32imm, "printMemOffs32",
523 X86MemOffs32_32AsmOperand>;
524 def offset32_64 : X86MemOffsOperand<i32imm, "printMemOffs64",
525 X86MemOffs32_64AsmOperand>;
526 def offset64_8 : X86MemOffsOperand<i64imm, "printMemOffs8",
527 X86MemOffs64_8AsmOperand>;
528 def offset64_16 : X86MemOffsOperand<i64imm, "printMemOffs16",
529 X86MemOffs64_16AsmOperand>;
530 def offset64_32 : X86MemOffsOperand<i64imm, "printMemOffs32",
531 X86MemOffs64_32AsmOperand>;
532 def offset64_64 : X86MemOffsOperand<i64imm, "printMemOffs64",
533 X86MemOffs64_64AsmOperand>;
535 def SSECC : Operand<i8> {
536 let PrintMethod = "printSSECC";
537 let OperandType = "OPERAND_IMMEDIATE";
540 def i8immZExt3 : ImmLeaf<i8, [{
541 return Imm >= 0 && Imm < 8;
544 def AVXCC : Operand<i8> {
545 let PrintMethod = "printAVXCC";
546 let OperandType = "OPERAND_IMMEDIATE";
549 def i8immZExt5 : ImmLeaf<i8, [{
550 return Imm >= 0 && Imm < 32;
552 // AVX-512 uses a 32-bit immediate in their intrinsics
553 def i32immZExt5 : ImmLeaf<i32, [{
554 return Imm >= 0 && Imm < 32;
557 class ImmSExtAsmOperandClass : AsmOperandClass {
558 let SuperClasses = [ImmAsmOperand];
559 let RenderMethod = "addImmOperands";
562 def X86GR32orGR64AsmOperand : AsmOperandClass {
563 let Name = "GR32orGR64";
566 def GR32orGR64 : RegisterOperand<GR32> {
567 let ParserMatchClass = X86GR32orGR64AsmOperand;
570 def AVX512RC : Operand<i32> {
571 let PrintMethod = "printRoundingControl";
572 let OperandType = "OPERAND_IMMEDIATE";
575 // Sign-extended immediate classes. We don't need to define the full lattice
576 // here because there is no instruction with an ambiguity between ImmSExti64i32
579 // The strange ranges come from the fact that the assembler always works with
580 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
581 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
584 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
585 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
586 let Name = "ImmSExti64i32";
589 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
590 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
591 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
592 let Name = "ImmSExti16i8";
593 let SuperClasses = [ImmSExti64i32AsmOperand];
596 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
597 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
598 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
599 let Name = "ImmSExti32i8";
603 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
604 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
605 let Name = "ImmSExti64i8";
606 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
607 ImmSExti64i32AsmOperand];
610 // A couple of more descriptive operand definitions.
611 // 16-bits but only 8 bits are significant.
612 def i16i8imm : Operand<i16> {
613 let ParserMatchClass = ImmSExti16i8AsmOperand;
614 let OperandType = "OPERAND_IMMEDIATE";
616 // 32-bits but only 8 bits are significant.
617 def i32i8imm : Operand<i32> {
618 let ParserMatchClass = ImmSExti32i8AsmOperand;
619 let OperandType = "OPERAND_IMMEDIATE";
622 // 64-bits but only 32 bits are significant.
623 def i64i32imm : Operand<i64> {
624 let ParserMatchClass = ImmSExti64i32AsmOperand;
625 let OperandType = "OPERAND_IMMEDIATE";
628 // 64-bits but only 32 bits are significant, and those bits are treated as being
630 def i64i32imm_pcrel : Operand<i64> {
631 let PrintMethod = "printPCRelImm";
632 let ParserMatchClass = X86AbsMemAsmOperand;
633 let OperandType = "OPERAND_PCREL";
636 // 64-bits but only 8 bits are significant.
637 def i64i8imm : Operand<i64> {
638 let ParserMatchClass = ImmSExti64i8AsmOperand;
639 let OperandType = "OPERAND_IMMEDIATE";
642 def lea64_32mem : Operand<i32> {
643 let PrintMethod = "printi32mem";
644 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
645 let ParserMatchClass = X86MemAsmOperand;
648 // Memory operands that use 64-bit pointers in both ILP32 and LP64.
649 def lea64mem : Operand<i64> {
650 let PrintMethod = "printi64mem";
651 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
652 let ParserMatchClass = X86MemAsmOperand;
656 //===----------------------------------------------------------------------===//
657 // X86 Complex Pattern Definitions.
660 // Define X86 specific addressing mode.
661 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
662 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
663 [add, sub, mul, X86mul_imm, shl, or, frameindex],
665 // In 64-bit mode 32-bit LEAs can use RIP-relative addressing.
666 def lea64_32addr : ComplexPattern<i32, 5, "SelectLEA64_32Addr",
667 [add, sub, mul, X86mul_imm, shl, or,
668 frameindex, X86WrapperRIP],
671 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
672 [tglobaltlsaddr], []>;
674 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
675 [tglobaltlsaddr], []>;
677 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
678 [add, sub, mul, X86mul_imm, shl, or, frameindex,
681 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
682 [tglobaltlsaddr], []>;
684 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
685 [tglobaltlsaddr], []>;
687 //===----------------------------------------------------------------------===//
688 // X86 Instruction Predicate Definitions.
689 def HasCMov : Predicate<"Subtarget->hasCMov()">;
690 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
692 def HasMMX : Predicate<"Subtarget->hasMMX()">;
693 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
694 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
695 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
696 def UseSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
697 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
698 def UseSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
699 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
700 def UseSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
701 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
702 def UseSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
703 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
704 def NoSSE41 : Predicate<"!Subtarget->hasSSE41()">;
705 def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
706 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
707 def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
708 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
709 def HasAVX : Predicate<"Subtarget->hasAVX()">;
710 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
711 def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;
712 def HasAVX512 : Predicate<"Subtarget->hasAVX512()">,
713 AssemblerPredicate<"FeatureAVX512", "AVX-512 ISA">;
714 def UseAVX : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX512()">;
715 def UseAVX2 : Predicate<"Subtarget->hasAVX2() && !Subtarget->hasAVX512()">;
716 def NoAVX512 : Predicate<"!Subtarget->hasAVX512()">;
717 def HasCDI : Predicate<"Subtarget->hasCDI()">;
718 def HasPFI : Predicate<"Subtarget->hasPFI()">;
719 def HasERI : Predicate<"Subtarget->hasERI()">;
720 def HasDQI : Predicate<"Subtarget->hasDQI()">;
721 def NoDQI : Predicate<"!Subtarget->hasDQI()">;
722 def HasBWI : Predicate<"Subtarget->hasBWI()">;
723 def HasVLX : Predicate<"Subtarget->hasVLX()">,
724 AssemblerPredicate<"FeatureVLX", "AVX-512 VLX ISA">;
725 def NoVLX : Predicate<"!Subtarget->hasVLX()">;
727 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
728 def HasAES : Predicate<"Subtarget->hasAES()">;
729 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
730 def HasFMA : Predicate<"Subtarget->hasFMA()">;
731 def UseFMAOnAVX : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
732 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
733 def HasXOP : Predicate<"Subtarget->hasXOP()">;
734 def HasTBM : Predicate<"Subtarget->hasTBM()">;
735 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
736 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
737 def HasF16C : Predicate<"Subtarget->hasF16C()">;
738 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
739 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
740 def HasBMI : Predicate<"Subtarget->hasBMI()">;
741 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
742 def HasRTM : Predicate<"Subtarget->hasRTM()">;
743 def HasHLE : Predicate<"Subtarget->hasHLE()">;
744 def HasTSX : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
745 def HasADX : Predicate<"Subtarget->hasADX()">;
746 def HasSHA : Predicate<"Subtarget->hasSHA()">;
747 def HasSGX : Predicate<"Subtarget->hasSGX()">;
748 def HasPRFCHW : Predicate<"Subtarget->hasPRFCHW()">;
749 def HasRDSEED : Predicate<"Subtarget->hasRDSEED()">;
750 def HasSMAP : Predicate<"Subtarget->hasSMAP()">;
751 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;
752 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
753 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
754 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
755 def Not64BitMode : Predicate<"!Subtarget->is64Bit()">,
756 AssemblerPredicate<"!Mode64Bit", "Not 64-bit mode">;
757 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
758 AssemblerPredicate<"Mode64Bit", "64-bit mode">;
759 def IsLP64 : Predicate<"Subtarget->isTarget64BitLP64()">;
760 def NotLP64 : Predicate<"!Subtarget->isTarget64BitLP64()">;
761 def In16BitMode : Predicate<"Subtarget->is16Bit()">,
762 AssemblerPredicate<"Mode16Bit", "16-bit mode">;
763 def Not16BitMode : Predicate<"!Subtarget->is16Bit()">,
764 AssemblerPredicate<"!Mode16Bit", "Not 16-bit mode">;
765 def In32BitMode : Predicate<"Subtarget->is32Bit()">,
766 AssemblerPredicate<"Mode32Bit", "32-bit mode">;
767 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
768 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
769 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
770 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
771 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
772 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
773 "TM.getCodeModel() != CodeModel::Kernel">;
774 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
775 "TM.getCodeModel() == CodeModel::Kernel">;
776 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
777 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
778 def OptForSize : Predicate<"OptForSize">;
779 def OptForSpeed : Predicate<"!OptForSize">;
780 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
781 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
782 def FavorMemIndirectCall : Predicate<"!Subtarget->callRegIndirect()">;
783 def NotSlowIncDec : Predicate<"!Subtarget->slowIncDec()">;
784 def HasFastMem32 : Predicate<"!Subtarget->isUnalignedMem32Slow()">;
786 //===----------------------------------------------------------------------===//
787 // X86 Instruction Format Definitions.
790 include "X86InstrFormats.td"
792 //===----------------------------------------------------------------------===//
793 // Pattern fragments.
796 // X86 specific condition code. These correspond to CondCode in
797 // X86InstrInfo.h. They must be kept in synch.
798 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
799 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
800 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
801 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
802 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
803 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
804 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
805 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
806 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
807 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
808 def X86_COND_NO : PatLeaf<(i8 10)>;
809 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
810 def X86_COND_NS : PatLeaf<(i8 12)>;
811 def X86_COND_O : PatLeaf<(i8 13)>;
812 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
813 def X86_COND_S : PatLeaf<(i8 15)>;
815 // Predicate used to help when pattern matching LZCNT/TZCNT.
816 def X86_COND_E_OR_NE : ImmLeaf<i8, [{
817 return (Imm == X86::COND_E) || (Imm == X86::COND_NE);
820 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
821 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
822 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
823 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
826 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
829 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
831 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
833 def i64immZExt32SExt8 : ImmLeaf<i64, [{
834 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
837 // Helper fragments for loads.
838 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
839 // known to be 32-bit aligned or better. Ditto for i8 to i16.
840 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
841 LoadSDNode *LD = cast<LoadSDNode>(N);
842 ISD::LoadExtType ExtType = LD->getExtensionType();
843 if (ExtType == ISD::NON_EXTLOAD)
845 if (ExtType == ISD::EXTLOAD)
846 return LD->getAlignment() >= 2 && !LD->isVolatile();
850 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
851 LoadSDNode *LD = cast<LoadSDNode>(N);
852 ISD::LoadExtType ExtType = LD->getExtensionType();
853 if (ExtType == ISD::EXTLOAD)
854 return LD->getAlignment() >= 2 && !LD->isVolatile();
858 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
859 LoadSDNode *LD = cast<LoadSDNode>(N);
860 ISD::LoadExtType ExtType = LD->getExtensionType();
861 if (ExtType == ISD::NON_EXTLOAD)
863 if (ExtType == ISD::EXTLOAD)
864 return LD->getAlignment() >= 4 && !LD->isVolatile();
868 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
869 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
870 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
871 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
872 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
874 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
875 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
876 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
877 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
878 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
879 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
881 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
882 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
883 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
884 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
885 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
886 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
887 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
888 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
889 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
890 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
892 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
893 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
894 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
895 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
896 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
897 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
898 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
899 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
900 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
901 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
904 // An 'and' node with a single use.
905 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
906 return N->hasOneUse();
908 // An 'srl' node with a single use.
909 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
910 return N->hasOneUse();
912 // An 'trunc' node with a single use.
913 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
914 return N->hasOneUse();
917 //===----------------------------------------------------------------------===//
922 let hasSideEffects = 0, SchedRW = [WriteZero] in {
923 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
924 def NOOPW : I<0x1f, MRMXm, (outs), (ins i16mem:$zero),
925 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize16;
926 def NOOPL : I<0x1f, MRMXm, (outs), (ins i32mem:$zero),
927 "nop{l}\t$zero", [], IIC_NOP>, TB, OpSize32;
931 // Constructing a stack frame.
932 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
933 "enter\t$len, $lvl", [], IIC_ENTER>, Sched<[WriteMicrocoded]>;
935 let SchedRW = [WriteALU] in {
936 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, hasSideEffects=0 in
937 def LEAVE : I<0xC9, RawFrm,
938 (outs), (ins), "leave", [], IIC_LEAVE>,
939 Requires<[Not64BitMode]>;
941 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, hasSideEffects = 0 in
942 def LEAVE64 : I<0xC9, RawFrm,
943 (outs), (ins), "leave", [], IIC_LEAVE>,
944 Requires<[In64BitMode]>;
947 //===----------------------------------------------------------------------===//
948 // Miscellaneous Instructions.
951 let Defs = [ESP], Uses = [ESP], hasSideEffects=0 in {
952 let mayLoad = 1, SchedRW = [WriteLoad] in {
953 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
954 IIC_POP_REG16>, OpSize16;
955 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
956 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
957 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
958 IIC_POP_REG>, OpSize16;
959 def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
960 IIC_POP_MEM>, OpSize16;
961 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
962 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
963 def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
964 IIC_POP_MEM>, OpSize32, Requires<[Not64BitMode]>;
965 } // mayLoad, SchedRW
967 let mayStore = 1, SchedRW = [WriteStore] in {
968 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
969 IIC_PUSH_REG>, OpSize16;
970 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
971 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
972 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
973 IIC_PUSH_REG>, OpSize16;
974 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
975 IIC_PUSH_MEM>, OpSize16;
976 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
977 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
978 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
979 IIC_PUSH_MEM>, OpSize32, Requires<[Not64BitMode]>;
981 def PUSH16i8 : Ii8<0x6a, RawFrm, (outs), (ins i16i8imm:$imm),
982 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
983 Requires<[Not64BitMode]>;
984 def PUSH32i8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
985 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
986 Requires<[Not64BitMode]>;
987 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
988 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
989 Requires<[Not64BitMode]>;
990 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
991 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
992 Requires<[Not64BitMode]>;
993 } // mayStore, SchedRW
996 let Defs = [ESP, EFLAGS], Uses = [ESP], mayLoad = 1, hasSideEffects=0,
997 SchedRW = [WriteLoad] in {
998 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>,
1000 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
1001 OpSize32, Requires<[Not64BitMode]>;
1004 let Defs = [ESP], Uses = [ESP, EFLAGS], mayStore = 1, hasSideEffects=0,
1005 SchedRW = [WriteStore] in {
1006 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
1008 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
1009 OpSize32, Requires<[Not64BitMode]>;
1012 let Defs = [RSP], Uses = [RSP], hasSideEffects=0 in {
1013 let mayLoad = 1, SchedRW = [WriteLoad] in {
1014 def POP64r : I<0x58, AddRegFrm, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1015 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1016 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1017 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1018 def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
1019 IIC_POP_MEM>, OpSize32, Requires<[In64BitMode]>;
1020 } // mayLoad, SchedRW
1021 let mayStore = 1, SchedRW = [WriteStore] in {
1022 def PUSH64r : I<0x50, AddRegFrm, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1023 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1024 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1025 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1026 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
1027 IIC_PUSH_MEM>, OpSize32, Requires<[In64BitMode]>;
1028 } // mayStore, SchedRW
1031 let Defs = [RSP], Uses = [RSP], hasSideEffects = 0, mayStore = 1,
1032 SchedRW = [WriteStore] in {
1033 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
1034 "push{q}\t$imm", [], IIC_PUSH_IMM>, Requires<[In64BitMode]>;
1035 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1036 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1037 Requires<[In64BitMode]>;
1038 def PUSH64i32 : Ii32S<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
1039 "push{q}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1040 Requires<[In64BitMode]>;
1043 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, hasSideEffects=0 in
1044 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
1045 OpSize32, Requires<[In64BitMode]>, Sched<[WriteLoad]>;
1046 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, hasSideEffects=0 in
1047 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
1048 OpSize32, Requires<[In64BitMode]>, Sched<[WriteStore]>;
1050 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
1051 mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteLoad] in {
1052 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popal", [], IIC_POP_A>,
1053 OpSize32, Requires<[Not64BitMode]>;
1054 def POPA16 : I<0x61, RawFrm, (outs), (ins), "popaw", [], IIC_POP_A>,
1055 OpSize16, Requires<[Not64BitMode]>;
1057 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
1058 mayStore = 1, hasSideEffects = 0, SchedRW = [WriteStore] in {
1059 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pushal", [], IIC_PUSH_A>,
1060 OpSize32, Requires<[Not64BitMode]>;
1061 def PUSHA16 : I<0x60, RawFrm, (outs), (ins), "pushaw", [], IIC_PUSH_A>,
1062 OpSize16, Requires<[Not64BitMode]>;
1065 let Constraints = "$src = $dst", SchedRW = [WriteALU] in {
1066 // GR32 = bswap GR32
1067 def BSWAP32r : I<0xC8, AddRegFrm,
1068 (outs GR32:$dst), (ins GR32:$src),
1070 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, OpSize32, TB;
1072 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
1074 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
1075 } // Constraints = "$src = $dst", SchedRW
1077 // Bit scan instructions.
1078 let Defs = [EFLAGS] in {
1079 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1080 "bsf{w}\t{$src, $dst|$dst, $src}",
1081 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
1082 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1083 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1084 "bsf{w}\t{$src, $dst|$dst, $src}",
1085 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
1086 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1087 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1088 "bsf{l}\t{$src, $dst|$dst, $src}",
1089 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))],
1090 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1091 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1092 "bsf{l}\t{$src, $dst|$dst, $src}",
1093 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
1094 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1095 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1096 "bsf{q}\t{$src, $dst|$dst, $src}",
1097 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
1098 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1099 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1100 "bsf{q}\t{$src, $dst|$dst, $src}",
1101 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
1102 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1104 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1105 "bsr{w}\t{$src, $dst|$dst, $src}",
1106 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))],
1107 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1108 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1109 "bsr{w}\t{$src, $dst|$dst, $src}",
1110 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
1111 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1112 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1113 "bsr{l}\t{$src, $dst|$dst, $src}",
1114 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))],
1115 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1116 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1117 "bsr{l}\t{$src, $dst|$dst, $src}",
1118 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
1119 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1120 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1121 "bsr{q}\t{$src, $dst|$dst, $src}",
1122 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))],
1123 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1124 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1125 "bsr{q}\t{$src, $dst|$dst, $src}",
1126 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
1127 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1128 } // Defs = [EFLAGS]
1130 let SchedRW = [WriteMicrocoded] in {
1131 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1132 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
1133 def MOVSB : I<0xA4, RawFrmDstSrc, (outs dstidx8:$dst), (ins srcidx8:$src),
1134 "movsb\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1135 def MOVSW : I<0xA5, RawFrmDstSrc, (outs dstidx16:$dst), (ins srcidx16:$src),
1136 "movsw\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize16;
1137 def MOVSL : I<0xA5, RawFrmDstSrc, (outs dstidx32:$dst), (ins srcidx32:$src),
1138 "movs{l|d}\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize32;
1139 def MOVSQ : RI<0xA5, RawFrmDstSrc, (outs dstidx64:$dst), (ins srcidx64:$src),
1140 "movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1143 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1144 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
1145 def STOSB : I<0xAA, RawFrmDst, (outs dstidx8:$dst), (ins),
1146 "stosb\t{%al, $dst|$dst, al}", [], IIC_STOS>;
1147 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
1148 def STOSW : I<0xAB, RawFrmDst, (outs dstidx16:$dst), (ins),
1149 "stosw\t{%ax, $dst|$dst, ax}", [], IIC_STOS>, OpSize16;
1150 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
1151 def STOSL : I<0xAB, RawFrmDst, (outs dstidx32:$dst), (ins),
1152 "stos{l|d}\t{%eax, $dst|$dst, eax}", [], IIC_STOS>, OpSize32;
1153 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
1154 def STOSQ : RI<0xAB, RawFrmDst, (outs dstidx64:$dst), (ins),
1155 "stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>;
1157 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1158 let Defs = [EDI,EFLAGS], Uses = [AL,EDI,EFLAGS] in
1159 def SCASB : I<0xAE, RawFrmDst, (outs), (ins dstidx8:$dst),
1160 "scasb\t{$dst, %al|al, $dst}", [], IIC_SCAS>;
1161 let Defs = [EDI,EFLAGS], Uses = [AX,EDI,EFLAGS] in
1162 def SCASW : I<0xAF, RawFrmDst, (outs), (ins dstidx16:$dst),
1163 "scasw\t{$dst, %ax|ax, $dst}", [], IIC_SCAS>, OpSize16;
1164 let Defs = [EDI,EFLAGS], Uses = [EAX,EDI,EFLAGS] in
1165 def SCASL : I<0xAF, RawFrmDst, (outs), (ins dstidx32:$dst),
1166 "scas{l|d}\t{$dst, %eax|eax, $dst}", [], IIC_SCAS>, OpSize32;
1167 let Defs = [EDI,EFLAGS], Uses = [RAX,EDI,EFLAGS] in
1168 def SCASQ : RI<0xAF, RawFrmDst, (outs), (ins dstidx64:$dst),
1169 "scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>;
1171 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1172 let Defs = [EDI,ESI,EFLAGS], Uses = [EDI,ESI,EFLAGS] in {
1173 def CMPSB : I<0xA6, RawFrmDstSrc, (outs), (ins dstidx8:$dst, srcidx8:$src),
1174 "cmpsb\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1175 def CMPSW : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
1176 "cmpsw\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize16;
1177 def CMPSL : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
1178 "cmps{l|d}\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize32;
1179 def CMPSQ : RI<0xA7, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
1180 "cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1184 //===----------------------------------------------------------------------===//
1185 // Move Instructions.
1187 let SchedRW = [WriteMove] in {
1188 let hasSideEffects = 0 in {
1189 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
1190 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1191 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1192 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1193 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1194 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1195 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1196 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1199 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
1200 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
1201 "mov{b}\t{$src, $dst|$dst, $src}",
1202 [(set GR8:$dst, imm:$src)], IIC_MOV>;
1203 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
1204 "mov{w}\t{$src, $dst|$dst, $src}",
1205 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize16;
1206 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
1207 "mov{l}\t{$src, $dst|$dst, $src}",
1208 [(set GR32:$dst, imm:$src)], IIC_MOV>, OpSize32;
1209 def MOV64ri32 : RIi32S<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
1210 "mov{q}\t{$src, $dst|$dst, $src}",
1211 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
1213 let isReMaterializable = 1 in {
1214 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
1215 "movabs{q}\t{$src, $dst|$dst, $src}",
1216 [(set GR64:$dst, imm:$src)], IIC_MOV>;
1219 // Longer forms that use a ModR/M byte. Needed for disassembler
1220 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0 in {
1221 def MOV8ri_alt : Ii8 <0xC6, MRM0r, (outs GR8 :$dst), (ins i8imm :$src),
1222 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1223 def MOV16ri_alt : Ii16<0xC7, MRM0r, (outs GR16:$dst), (ins i16imm:$src),
1224 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1225 def MOV32ri_alt : Ii32<0xC7, MRM0r, (outs GR32:$dst), (ins i32imm:$src),
1226 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1230 let SchedRW = [WriteStore] in {
1231 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
1232 "mov{b}\t{$src, $dst|$dst, $src}",
1233 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1234 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
1235 "mov{w}\t{$src, $dst|$dst, $src}",
1236 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize16;
1237 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
1238 "mov{l}\t{$src, $dst|$dst, $src}",
1239 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize32;
1240 def MOV64mi32 : RIi32S<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
1241 "mov{q}\t{$src, $dst|$dst, $src}",
1242 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
1245 let hasSideEffects = 0 in {
1247 /// Memory offset versions of moves. The immediate is an address mode sized
1248 /// offset from the segment base.
1249 let SchedRW = [WriteALU] in {
1250 let mayLoad = 1 in {
1252 def MOV8ao32 : Ii32<0xA0, RawFrmMemOffs, (outs), (ins offset32_8:$src),
1253 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1256 def MOV16ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_16:$src),
1257 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1260 def MOV32ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_32:$src),
1261 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1264 def MOV64ao32 : RIi32<0xA1, RawFrmMemOffs, (outs), (ins offset32_64:$src),
1265 "mov{q}\t{$src, %rax|rax, $src}", [], IIC_MOV_MEM>,
1269 def MOV8ao16 : Ii16<0xA0, RawFrmMemOffs, (outs), (ins offset16_8:$src),
1270 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>, AdSize16;
1272 def MOV16ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_16:$src),
1273 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1276 def MOV32ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_32:$src),
1277 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1280 let mayStore = 1 in {
1282 def MOV8o32a : Ii32<0xA2, RawFrmMemOffs, (outs offset32_8:$dst), (ins),
1283 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize32;
1285 def MOV16o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_16:$dst), (ins),
1286 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1289 def MOV32o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_32:$dst), (ins),
1290 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1293 def MOV64o32a : RIi32<0xA3, RawFrmMemOffs, (outs offset32_64:$dst), (ins),
1294 "mov{q}\t{%rax, $dst|$dst, rax}", [], IIC_MOV_MEM>,
1298 def MOV8o16a : Ii16<0xA2, RawFrmMemOffs, (outs offset16_8:$dst), (ins),
1299 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize16;
1301 def MOV16o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_16:$dst), (ins),
1302 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1305 def MOV32o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_32:$dst), (ins),
1306 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1311 // These forms all have full 64-bit absolute addresses in their instructions
1312 // and use the movabs mnemonic to indicate this specific form.
1313 let mayLoad = 1 in {
1315 def MOV8ao64 : RIi64_NOREX<0xA0, RawFrmMemOffs, (outs), (ins offset64_8:$src),
1316 "movabs{b}\t{$src, %al|al, $src}", []>, AdSize64;
1318 def MOV16ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_16:$src),
1319 "movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize16, AdSize64;
1321 def MOV32ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_32:$src),
1322 "movabs{l}\t{$src, %eax|eax, $src}", []>, OpSize32,
1325 def MOV64ao64 : RIi64<0xA1, RawFrmMemOffs, (outs), (ins offset64_64:$src),
1326 "movabs{q}\t{$src, %rax|rax, $src}", []>, AdSize64;
1329 let mayStore = 1 in {
1331 def MOV8o64a : RIi64_NOREX<0xA2, RawFrmMemOffs, (outs offset64_8:$dst), (ins),
1332 "movabs{b}\t{%al, $dst|$dst, al}", []>, AdSize64;
1334 def MOV16o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_16:$dst), (ins),
1335 "movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize16, AdSize64;
1337 def MOV32o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_32:$dst), (ins),
1338 "movabs{l}\t{%eax, $dst|$dst, eax}", []>, OpSize32,
1341 def MOV64o64a : RIi64<0xA3, RawFrmMemOffs, (outs offset64_64:$dst), (ins),
1342 "movabs{q}\t{%rax, $dst|$dst, rax}", []>, AdSize64;
1344 } // hasSideEffects = 0
1346 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0,
1347 SchedRW = [WriteMove] in {
1348 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1349 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1350 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1351 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1352 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1353 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1354 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1355 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1358 let canFoldAsLoad = 1, isReMaterializable = 1, SchedRW = [WriteLoad] in {
1359 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1360 "mov{b}\t{$src, $dst|$dst, $src}",
1361 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1362 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1363 "mov{w}\t{$src, $dst|$dst, $src}",
1364 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize16;
1365 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1366 "mov{l}\t{$src, $dst|$dst, $src}",
1367 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>, OpSize32;
1368 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1369 "mov{q}\t{$src, $dst|$dst, $src}",
1370 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1373 let SchedRW = [WriteStore] in {
1374 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1375 "mov{b}\t{$src, $dst|$dst, $src}",
1376 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1377 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1378 "mov{w}\t{$src, $dst|$dst, $src}",
1379 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize16;
1380 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1381 "mov{l}\t{$src, $dst|$dst, $src}",
1382 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>, OpSize32;
1383 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1384 "mov{q}\t{$src, $dst|$dst, $src}",
1385 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1388 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1389 // that they can be used for copying and storing h registers, which can't be
1390 // encoded when a REX prefix is present.
1391 let isCodeGenOnly = 1 in {
1392 let hasSideEffects = 0 in
1393 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1394 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1395 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>,
1397 let mayStore = 1, hasSideEffects = 0 in
1398 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1399 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1400 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1401 IIC_MOV_MEM>, Sched<[WriteStore]>;
1402 let mayLoad = 1, hasSideEffects = 0,
1403 canFoldAsLoad = 1, isReMaterializable = 1 in
1404 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1405 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1406 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1407 IIC_MOV_MEM>, Sched<[WriteLoad]>;
1411 // Condition code ops, incl. set if equal/not equal/...
1412 let SchedRW = [WriteALU] in {
1413 let Defs = [EFLAGS], Uses = [AH] in
1414 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1415 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1416 let Defs = [AH], Uses = [EFLAGS], hasSideEffects = 0 in
1417 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1418 IIC_AHF>; // AH = flags
1421 //===----------------------------------------------------------------------===//
1422 // Bit tests instructions: BT, BTS, BTR, BTC.
1424 let Defs = [EFLAGS] in {
1425 let SchedRW = [WriteALU] in {
1426 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1427 "bt{w}\t{$src2, $src1|$src1, $src2}",
1428 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1430 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1431 "bt{l}\t{$src2, $src1|$src1, $src2}",
1432 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>,
1434 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1435 "bt{q}\t{$src2, $src1|$src1, $src2}",
1436 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1439 // Unlike with the register+register form, the memory+register form of the
1440 // bt instruction does not ignore the high bits of the index. From ISel's
1441 // perspective, this is pretty bizarre. Make these instructions disassembly
1444 let mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteALULd] in {
1445 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1446 "bt{w}\t{$src2, $src1|$src1, $src2}",
1447 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1448 // (implicit EFLAGS)]
1450 >, OpSize16, TB, Requires<[FastBTMem]>;
1451 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1452 "bt{l}\t{$src2, $src1|$src1, $src2}",
1453 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1454 // (implicit EFLAGS)]
1456 >, OpSize32, TB, Requires<[FastBTMem]>;
1457 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1458 "bt{q}\t{$src2, $src1|$src1, $src2}",
1459 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1460 // (implicit EFLAGS)]
1465 let SchedRW = [WriteALU] in {
1466 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1467 "bt{w}\t{$src2, $src1|$src1, $src2}",
1468 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1469 IIC_BT_RI>, OpSize16, TB;
1470 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1471 "bt{l}\t{$src2, $src1|$src1, $src2}",
1472 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1473 IIC_BT_RI>, OpSize32, TB;
1474 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1475 "bt{q}\t{$src2, $src1|$src1, $src2}",
1476 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1480 // Note that these instructions don't need FastBTMem because that
1481 // only applies when the other operand is in a register. When it's
1482 // an immediate, bt is still fast.
1483 let SchedRW = [WriteALU] in {
1484 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1485 "bt{w}\t{$src2, $src1|$src1, $src2}",
1486 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1487 ], IIC_BT_MI>, OpSize16, TB;
1488 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1489 "bt{l}\t{$src2, $src1|$src1, $src2}",
1490 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1491 ], IIC_BT_MI>, OpSize32, TB;
1492 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1493 "bt{q}\t{$src2, $src1|$src1, $src2}",
1494 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1495 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1498 let hasSideEffects = 0 in {
1499 let SchedRW = [WriteALU] in {
1500 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1501 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1503 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1504 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1506 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1507 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1510 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1511 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1512 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1514 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1515 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1517 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1518 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1521 let SchedRW = [WriteALU] in {
1522 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1523 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1525 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1526 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1528 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1529 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1532 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1533 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1534 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1536 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1537 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1539 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1540 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1543 let SchedRW = [WriteALU] in {
1544 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1545 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1547 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1548 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1550 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1551 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1554 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1555 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1556 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1558 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1559 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1561 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1562 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1565 let SchedRW = [WriteALU] in {
1566 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1567 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1569 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1570 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1572 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1573 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1576 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1577 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1578 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1580 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1581 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1583 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1584 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1587 let SchedRW = [WriteALU] in {
1588 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1589 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1591 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1592 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1594 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1595 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1598 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1599 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1600 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1602 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1603 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1605 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1606 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1609 let SchedRW = [WriteALU] in {
1610 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1611 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1613 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1614 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1616 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1617 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1620 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1621 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1622 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1624 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1625 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1627 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1628 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1630 } // hasSideEffects = 0
1631 } // Defs = [EFLAGS]
1634 //===----------------------------------------------------------------------===//
1638 // Atomic swap. These are just normal xchg instructions. But since a memory
1639 // operand is referenced, the atomicity is ensured.
1640 multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag,
1641 InstrItinClass itin> {
1642 let Constraints = "$val = $dst", SchedRW = [WriteALULd, WriteRMW] in {
1643 def NAME#8rm : I<opc8, MRMSrcMem, (outs GR8:$dst),
1644 (ins GR8:$val, i8mem:$ptr),
1645 !strconcat(mnemonic, "{b}\t{$val, $ptr|$ptr, $val}"),
1648 (!cast<PatFrag>(frag # "_8") addr:$ptr, GR8:$val))],
1650 def NAME#16rm : I<opc, MRMSrcMem, (outs GR16:$dst),
1651 (ins GR16:$val, i16mem:$ptr),
1652 !strconcat(mnemonic, "{w}\t{$val, $ptr|$ptr, $val}"),
1655 (!cast<PatFrag>(frag # "_16") addr:$ptr, GR16:$val))],
1657 def NAME#32rm : I<opc, MRMSrcMem, (outs GR32:$dst),
1658 (ins GR32:$val, i32mem:$ptr),
1659 !strconcat(mnemonic, "{l}\t{$val, $ptr|$ptr, $val}"),
1662 (!cast<PatFrag>(frag # "_32") addr:$ptr, GR32:$val))],
1664 def NAME#64rm : RI<opc, MRMSrcMem, (outs GR64:$dst),
1665 (ins GR64:$val, i64mem:$ptr),
1666 !strconcat(mnemonic, "{q}\t{$val, $ptr|$ptr, $val}"),
1669 (!cast<PatFrag>(frag # "_64") addr:$ptr, GR64:$val))],
1674 defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap", IIC_XCHG_MEM>;
1676 // Swap between registers.
1677 let SchedRW = [WriteALU] in {
1678 let Constraints = "$val = $dst" in {
1679 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1680 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1681 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1682 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1684 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1685 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1687 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1688 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1691 // Swap between EAX and other registers.
1692 let Uses = [AX], Defs = [AX] in
1693 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1694 "xchg{w}\t{$src, %ax|ax, $src}", [], IIC_XCHG_REG>, OpSize16;
1695 let Uses = [EAX], Defs = [EAX] in
1696 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1697 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1698 OpSize32, Requires<[Not64BitMode]>;
1699 let Uses = [EAX], Defs = [EAX] in
1700 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1701 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1702 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1703 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1704 OpSize32, Requires<[In64BitMode]>;
1705 let Uses = [RAX], Defs = [RAX] in
1706 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1707 "xchg{q}\t{$src, %rax|rax, $src}", [], IIC_XCHG_REG>;
1710 let SchedRW = [WriteALU] in {
1711 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1712 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1713 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1714 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1716 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1717 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1719 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1720 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1723 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1724 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1725 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1726 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1727 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1729 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1730 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1732 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1733 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1737 let SchedRW = [WriteALU] in {
1738 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1739 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1740 IIC_CMPXCHG_REG8>, TB;
1741 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1742 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1743 IIC_CMPXCHG_REG>, TB, OpSize16;
1744 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1745 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1746 IIC_CMPXCHG_REG>, TB, OpSize32;
1747 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1748 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1749 IIC_CMPXCHG_REG>, TB;
1752 let SchedRW = [WriteALULd, WriteRMW] in {
1753 let mayLoad = 1, mayStore = 1 in {
1754 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1755 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1756 IIC_CMPXCHG_MEM8>, TB;
1757 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1758 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1759 IIC_CMPXCHG_MEM>, TB, OpSize16;
1760 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1761 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1762 IIC_CMPXCHG_MEM>, TB, OpSize32;
1763 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1764 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1765 IIC_CMPXCHG_MEM>, TB;
1768 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1769 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1770 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1772 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1773 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1774 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1775 TB, Requires<[HasCmpxchg16b]>;
1779 // Lock instruction prefix
1780 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1782 // Rex64 instruction prefix
1783 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>,
1784 Requires<[In64BitMode]>;
1786 // Data16 instruction prefix
1787 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1789 // Repeat string operation instruction prefixes
1790 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1791 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1792 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1793 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1794 // Repeat while not equal (used with CMPS and SCAS)
1795 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1799 // String manipulation instructions
1800 let SchedRW = [WriteMicrocoded] in {
1801 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1802 let Defs = [AL,ESI], Uses = [ESI,EFLAGS] in
1803 def LODSB : I<0xAC, RawFrmSrc, (outs), (ins srcidx8:$src),
1804 "lodsb\t{$src, %al|al, $src}", [], IIC_LODS>;
1805 let Defs = [AX,ESI], Uses = [ESI,EFLAGS] in
1806 def LODSW : I<0xAD, RawFrmSrc, (outs), (ins srcidx16:$src),
1807 "lodsw\t{$src, %ax|ax, $src}", [], IIC_LODS>, OpSize16;
1808 let Defs = [EAX,ESI], Uses = [ESI,EFLAGS] in
1809 def LODSL : I<0xAD, RawFrmSrc, (outs), (ins srcidx32:$src),
1810 "lods{l|d}\t{$src, %eax|eax, $src}", [], IIC_LODS>, OpSize32;
1811 let Defs = [RAX,ESI], Uses = [ESI,EFLAGS] in
1812 def LODSQ : RI<0xAD, RawFrmSrc, (outs), (ins srcidx64:$src),
1813 "lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>;
1816 let SchedRW = [WriteSystem] in {
1817 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1818 let Defs = [ESI], Uses = [DX,ESI,EFLAGS] in {
1819 def OUTSB : I<0x6E, RawFrmSrc, (outs), (ins srcidx8:$src),
1820 "outsb\t{$src, %dx|dx, $src}", [], IIC_OUTS>;
1821 def OUTSW : I<0x6F, RawFrmSrc, (outs), (ins srcidx16:$src),
1822 "outsw\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize16;
1823 def OUTSL : I<0x6F, RawFrmSrc, (outs), (ins srcidx32:$src),
1824 "outs{l|d}\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize32;
1827 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1828 let Defs = [EDI], Uses = [DX,EDI,EFLAGS] in {
1829 def INSB : I<0x6C, RawFrmDst, (outs dstidx8:$dst), (ins),
1830 "insb\t{%dx, $dst|$dst, dx}", [], IIC_INS>;
1831 def INSW : I<0x6D, RawFrmDst, (outs dstidx16:$dst), (ins),
1832 "insw\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize16;
1833 def INSL : I<0x6D, RawFrmDst, (outs dstidx32:$dst), (ins),
1834 "ins{l|d}\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize32;
1838 // Flag instructions
1839 let SchedRW = [WriteALU] in {
1840 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1841 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1842 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1843 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1844 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1845 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1846 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1848 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1851 // Table lookup instructions
1852 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>,
1855 let SchedRW = [WriteMicrocoded] in {
1856 // ASCII Adjust After Addition
1857 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1858 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1859 Requires<[Not64BitMode]>;
1861 // ASCII Adjust AX Before Division
1862 // sets AL, AH and EFLAGS and uses AL and AH
1863 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1864 "aad\t$src", [], IIC_AAD>, Requires<[Not64BitMode]>;
1866 // ASCII Adjust AX After Multiply
1867 // sets AL, AH and EFLAGS and uses AL
1868 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1869 "aam\t$src", [], IIC_AAM>, Requires<[Not64BitMode]>;
1871 // ASCII Adjust AL After Subtraction - sets
1872 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1873 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1874 Requires<[Not64BitMode]>;
1876 // Decimal Adjust AL after Addition
1877 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1878 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1879 Requires<[Not64BitMode]>;
1881 // Decimal Adjust AL after Subtraction
1882 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1883 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1884 Requires<[Not64BitMode]>;
1887 let SchedRW = [WriteSystem] in {
1888 // Check Array Index Against Bounds
1889 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1890 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize16,
1891 Requires<[Not64BitMode]>;
1892 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1893 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize32,
1894 Requires<[Not64BitMode]>;
1896 // Adjust RPL Field of Segment Selector
1897 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1898 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1899 Requires<[Not64BitMode]>;
1900 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1901 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1902 Requires<[Not64BitMode]>;
1905 //===----------------------------------------------------------------------===//
1906 // MOVBE Instructions
1908 let Predicates = [HasMOVBE] in {
1909 let SchedRW = [WriteALULd] in {
1910 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1911 "movbe{w}\t{$src, $dst|$dst, $src}",
1912 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1914 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1915 "movbe{l}\t{$src, $dst|$dst, $src}",
1916 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1918 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1919 "movbe{q}\t{$src, $dst|$dst, $src}",
1920 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1923 let SchedRW = [WriteStore] in {
1924 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1925 "movbe{w}\t{$src, $dst|$dst, $src}",
1926 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1928 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1929 "movbe{l}\t{$src, $dst|$dst, $src}",
1930 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1932 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1933 "movbe{q}\t{$src, $dst|$dst, $src}",
1934 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1939 //===----------------------------------------------------------------------===//
1940 // RDRAND Instruction
1942 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1943 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1945 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, TB;
1946 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1948 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, TB;
1949 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1951 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1954 //===----------------------------------------------------------------------===//
1955 // RDSEED Instruction
1957 let Predicates = [HasRDSEED], Defs = [EFLAGS] in {
1958 def RDSEED16r : I<0xC7, MRM7r, (outs GR16:$dst), (ins),
1960 [(set GR16:$dst, EFLAGS, (X86rdseed))]>, OpSize16, TB;
1961 def RDSEED32r : I<0xC7, MRM7r, (outs GR32:$dst), (ins),
1963 [(set GR32:$dst, EFLAGS, (X86rdseed))]>, OpSize32, TB;
1964 def RDSEED64r : RI<0xC7, MRM7r, (outs GR64:$dst), (ins),
1966 [(set GR64:$dst, EFLAGS, (X86rdseed))]>, TB;
1969 //===----------------------------------------------------------------------===//
1970 // LZCNT Instruction
1972 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1973 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1974 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1975 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1977 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1978 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1979 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1980 (implicit EFLAGS)]>, XS, OpSize16;
1982 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1983 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1984 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS,
1986 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1987 "lzcnt{l}\t{$src, $dst|$dst, $src}",
1988 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
1989 (implicit EFLAGS)]>, XS, OpSize32;
1991 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1992 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1993 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
1995 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1996 "lzcnt{q}\t{$src, $dst|$dst, $src}",
1997 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
1998 (implicit EFLAGS)]>, XS;
2001 let Predicates = [HasLZCNT] in {
2002 def : Pat<(X86cmov (ctlz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2003 (X86cmp GR16:$src, (i16 0))),
2004 (LZCNT16rr GR16:$src)>;
2005 def : Pat<(X86cmov (ctlz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2006 (X86cmp GR32:$src, (i32 0))),
2007 (LZCNT32rr GR32:$src)>;
2008 def : Pat<(X86cmov (ctlz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2009 (X86cmp GR64:$src, (i64 0))),
2010 (LZCNT64rr GR64:$src)>;
2011 def : Pat<(X86cmov (i16 16), (ctlz GR16:$src), (X86_COND_E_OR_NE),
2012 (X86cmp GR16:$src, (i16 0))),
2013 (LZCNT16rr GR16:$src)>;
2014 def : Pat<(X86cmov (i32 32), (ctlz GR32:$src), (X86_COND_E_OR_NE),
2015 (X86cmp GR32:$src, (i32 0))),
2016 (LZCNT32rr GR32:$src)>;
2017 def : Pat<(X86cmov (i64 64), (ctlz GR64:$src), (X86_COND_E_OR_NE),
2018 (X86cmp GR64:$src, (i64 0))),
2019 (LZCNT64rr GR64:$src)>;
2021 def : Pat<(X86cmov (ctlz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2022 (X86cmp (loadi16 addr:$src), (i16 0))),
2023 (LZCNT16rm addr:$src)>;
2024 def : Pat<(X86cmov (ctlz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2025 (X86cmp (loadi32 addr:$src), (i32 0))),
2026 (LZCNT32rm addr:$src)>;
2027 def : Pat<(X86cmov (ctlz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2028 (X86cmp (loadi64 addr:$src), (i64 0))),
2029 (LZCNT64rm addr:$src)>;
2030 def : Pat<(X86cmov (i16 16), (ctlz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2031 (X86cmp (loadi16 addr:$src), (i16 0))),
2032 (LZCNT16rm addr:$src)>;
2033 def : Pat<(X86cmov (i32 32), (ctlz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2034 (X86cmp (loadi32 addr:$src), (i32 0))),
2035 (LZCNT32rm addr:$src)>;
2036 def : Pat<(X86cmov (i64 64), (ctlz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2037 (X86cmp (loadi64 addr:$src), (i64 0))),
2038 (LZCNT64rm addr:$src)>;
2041 //===----------------------------------------------------------------------===//
2044 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2045 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
2046 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2047 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
2049 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
2050 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2051 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
2052 (implicit EFLAGS)]>, XS, OpSize16;
2054 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2055 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2056 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS,
2058 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2059 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2060 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
2061 (implicit EFLAGS)]>, XS, OpSize32;
2063 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2064 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2065 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
2067 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2068 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2069 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
2070 (implicit EFLAGS)]>, XS;
2073 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
2074 RegisterClass RC, X86MemOperand x86memop> {
2075 let hasSideEffects = 0 in {
2076 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
2077 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2080 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
2081 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2086 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2087 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem>;
2088 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem>, VEX_W;
2089 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem>;
2090 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem>, VEX_W;
2091 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem>;
2092 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem>, VEX_W;
2095 //===----------------------------------------------------------------------===//
2096 // Pattern fragments to auto generate BMI instructions.
2097 //===----------------------------------------------------------------------===//
2099 let Predicates = [HasBMI] in {
2100 // FIXME: patterns for the load versions are not implemented
2101 def : Pat<(and GR32:$src, (add GR32:$src, -1)),
2102 (BLSR32rr GR32:$src)>;
2103 def : Pat<(and GR64:$src, (add GR64:$src, -1)),
2104 (BLSR64rr GR64:$src)>;
2106 def : Pat<(xor GR32:$src, (add GR32:$src, -1)),
2107 (BLSMSK32rr GR32:$src)>;
2108 def : Pat<(xor GR64:$src, (add GR64:$src, -1)),
2109 (BLSMSK64rr GR64:$src)>;
2111 def : Pat<(and GR32:$src, (ineg GR32:$src)),
2112 (BLSI32rr GR32:$src)>;
2113 def : Pat<(and GR64:$src, (ineg GR64:$src)),
2114 (BLSI64rr GR64:$src)>;
2117 let Predicates = [HasBMI] in {
2118 def : Pat<(X86cmov (cttz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2119 (X86cmp GR16:$src, (i16 0))),
2120 (TZCNT16rr GR16:$src)>;
2121 def : Pat<(X86cmov (cttz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2122 (X86cmp GR32:$src, (i32 0))),
2123 (TZCNT32rr GR32:$src)>;
2124 def : Pat<(X86cmov (cttz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2125 (X86cmp GR64:$src, (i64 0))),
2126 (TZCNT64rr GR64:$src)>;
2127 def : Pat<(X86cmov (i16 16), (cttz GR16:$src), (X86_COND_E_OR_NE),
2128 (X86cmp GR16:$src, (i16 0))),
2129 (TZCNT16rr GR16:$src)>;
2130 def : Pat<(X86cmov (i32 32), (cttz GR32:$src), (X86_COND_E_OR_NE),
2131 (X86cmp GR32:$src, (i32 0))),
2132 (TZCNT32rr GR32:$src)>;
2133 def : Pat<(X86cmov (i64 64), (cttz GR64:$src), (X86_COND_E_OR_NE),
2134 (X86cmp GR64:$src, (i64 0))),
2135 (TZCNT64rr GR64:$src)>;
2137 def : Pat<(X86cmov (cttz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2138 (X86cmp (loadi16 addr:$src), (i16 0))),
2139 (TZCNT16rm addr:$src)>;
2140 def : Pat<(X86cmov (cttz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2141 (X86cmp (loadi32 addr:$src), (i32 0))),
2142 (TZCNT32rm addr:$src)>;
2143 def : Pat<(X86cmov (cttz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2144 (X86cmp (loadi64 addr:$src), (i64 0))),
2145 (TZCNT64rm addr:$src)>;
2146 def : Pat<(X86cmov (i16 16), (cttz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2147 (X86cmp (loadi16 addr:$src), (i16 0))),
2148 (TZCNT16rm addr:$src)>;
2149 def : Pat<(X86cmov (i32 32), (cttz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2150 (X86cmp (loadi32 addr:$src), (i32 0))),
2151 (TZCNT32rm addr:$src)>;
2152 def : Pat<(X86cmov (i64 64), (cttz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2153 (X86cmp (loadi64 addr:$src), (i64 0))),
2154 (TZCNT64rm addr:$src)>;
2158 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
2159 X86MemOperand x86memop, Intrinsic Int,
2161 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2162 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2163 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
2165 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
2166 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2167 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
2168 (implicit EFLAGS)]>, T8PS, VEX_4VOp3;
2171 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2172 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
2173 int_x86_bmi_bextr_32, loadi32>;
2174 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
2175 int_x86_bmi_bextr_64, loadi64>, VEX_W;
2178 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
2179 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
2180 int_x86_bmi_bzhi_32, loadi32>;
2181 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
2182 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
2186 def CountTrailingOnes : SDNodeXForm<imm, [{
2187 // Count the trailing ones in the immediate.
2188 return getI8Imm(CountTrailingOnes_64(N->getZExtValue()));
2191 def BZHIMask : ImmLeaf<i64, [{
2192 return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
2195 let Predicates = [HasBMI2] in {
2196 def : Pat<(and GR64:$src, BZHIMask:$mask),
2197 (BZHI64rr GR64:$src,
2198 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
2199 (MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
2201 def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
2202 (BZHI32rr GR32:$src,
2203 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2205 def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
2206 (BZHI32rm addr:$src,
2207 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2209 def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
2210 (BZHI64rr GR64:$src,
2211 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2213 def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
2214 (BZHI64rm addr:$src,
2215 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2218 let Predicates = [HasBMI] in {
2219 def : Pat<(X86bextr GR32:$src1, GR32:$src2),
2220 (BEXTR32rr GR32:$src1, GR32:$src2)>;
2221 def : Pat<(X86bextr (loadi32 addr:$src1), GR32:$src2),
2222 (BEXTR32rm addr:$src1, GR32:$src2)>;
2223 def : Pat<(X86bextr GR64:$src1, GR64:$src2),
2224 (BEXTR64rr GR64:$src1, GR64:$src2)>;
2225 def : Pat<(X86bextr (loadi64 addr:$src1), GR64:$src2),
2226 (BEXTR64rm addr:$src1, GR64:$src2)>;
2229 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
2230 X86MemOperand x86memop, Intrinsic Int,
2232 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2233 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2234 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
2236 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
2237 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2238 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
2241 let Predicates = [HasBMI2] in {
2242 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
2243 int_x86_bmi_pdep_32, loadi32>, T8XD;
2244 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
2245 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
2246 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
2247 int_x86_bmi_pext_32, loadi32>, T8XS;
2248 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
2249 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
2252 //===----------------------------------------------------------------------===//
2255 let Predicates = [HasTBM], Defs = [EFLAGS] in {
2257 multiclass tbm_ternary_imm_intr<bits<8> opc, RegisterClass RC, string OpcodeStr,
2258 X86MemOperand x86memop, PatFrag ld_frag,
2259 Intrinsic Int, Operand immtype,
2260 SDPatternOperator immoperator> {
2261 def ri : Ii32<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, immtype:$cntl),
2262 !strconcat(OpcodeStr,
2263 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2264 [(set RC:$dst, (Int RC:$src1, immoperator:$cntl))]>,
2266 def mi : Ii32<opc, MRMSrcMem, (outs RC:$dst),
2267 (ins x86memop:$src1, immtype:$cntl),
2268 !strconcat(OpcodeStr,
2269 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2270 [(set RC:$dst, (Int (ld_frag addr:$src1), immoperator:$cntl))]>,
2274 defm BEXTRI32 : tbm_ternary_imm_intr<0x10, GR32, "bextr", i32mem, loadi32,
2275 int_x86_tbm_bextri_u32, i32imm, imm>;
2276 let ImmT = Imm32S in
2277 defm BEXTRI64 : tbm_ternary_imm_intr<0x10, GR64, "bextr", i64mem, loadi64,
2278 int_x86_tbm_bextri_u64, i64i32imm,
2279 i64immSExt32>, VEX_W;
2281 multiclass tbm_binary_rm<bits<8> opc, Format FormReg, Format FormMem,
2282 RegisterClass RC, string OpcodeStr,
2283 X86MemOperand x86memop, PatFrag ld_frag> {
2284 let hasSideEffects = 0 in {
2285 def rr : I<opc, FormReg, (outs RC:$dst), (ins RC:$src),
2286 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2289 def rm : I<opc, FormMem, (outs RC:$dst), (ins x86memop:$src),
2290 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2295 multiclass tbm_binary_intr<bits<8> opc, string OpcodeStr,
2296 Format FormReg, Format FormMem> {
2297 defm NAME#32 : tbm_binary_rm<opc, FormReg, FormMem, GR32, OpcodeStr, i32mem,
2299 defm NAME#64 : tbm_binary_rm<opc, FormReg, FormMem, GR64, OpcodeStr, i64mem,
2303 defm BLCFILL : tbm_binary_intr<0x01, "blcfill", MRM1r, MRM1m>;
2304 defm BLCI : tbm_binary_intr<0x02, "blci", MRM6r, MRM6m>;
2305 defm BLCIC : tbm_binary_intr<0x01, "blcic", MRM5r, MRM5m>;
2306 defm BLCMSK : tbm_binary_intr<0x02, "blcmsk", MRM1r, MRM1m>;
2307 defm BLCS : tbm_binary_intr<0x01, "blcs", MRM3r, MRM3m>;
2308 defm BLSFILL : tbm_binary_intr<0x01, "blsfill", MRM2r, MRM2m>;
2309 defm BLSIC : tbm_binary_intr<0x01, "blsic", MRM6r, MRM6m>;
2310 defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
2311 defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
2314 //===----------------------------------------------------------------------===//
2315 // Pattern fragments to auto generate TBM instructions.
2316 //===----------------------------------------------------------------------===//
2318 let Predicates = [HasTBM] in {
2319 def : Pat<(X86bextr GR32:$src1, (i32 imm:$src2)),
2320 (BEXTRI32ri GR32:$src1, imm:$src2)>;
2321 def : Pat<(X86bextr (loadi32 addr:$src1), (i32 imm:$src2)),
2322 (BEXTRI32mi addr:$src1, imm:$src2)>;
2323 def : Pat<(X86bextr GR64:$src1, i64immSExt32:$src2),
2324 (BEXTRI64ri GR64:$src1, i64immSExt32:$src2)>;
2325 def : Pat<(X86bextr (loadi64 addr:$src1), i64immSExt32:$src2),
2326 (BEXTRI64mi addr:$src1, i64immSExt32:$src2)>;
2328 // FIXME: patterns for the load versions are not implemented
2329 def : Pat<(and GR32:$src, (add GR32:$src, 1)),
2330 (BLCFILL32rr GR32:$src)>;
2331 def : Pat<(and GR64:$src, (add GR64:$src, 1)),
2332 (BLCFILL64rr GR64:$src)>;
2334 def : Pat<(or GR32:$src, (not (add GR32:$src, 1))),
2335 (BLCI32rr GR32:$src)>;
2336 def : Pat<(or GR64:$src, (not (add GR64:$src, 1))),
2337 (BLCI64rr GR64:$src)>;
2339 // Extra patterns because opt can optimize the above patterns to this.
2340 def : Pat<(or GR32:$src, (sub -2, GR32:$src)),
2341 (BLCI32rr GR32:$src)>;
2342 def : Pat<(or GR64:$src, (sub -2, GR64:$src)),
2343 (BLCI64rr GR64:$src)>;
2345 def : Pat<(and (not GR32:$src), (add GR32:$src, 1)),
2346 (BLCIC32rr GR32:$src)>;
2347 def : Pat<(and (not GR64:$src), (add GR64:$src, 1)),
2348 (BLCIC64rr GR64:$src)>;
2350 def : Pat<(xor GR32:$src, (add GR32:$src, 1)),
2351 (BLCMSK32rr GR32:$src)>;
2352 def : Pat<(xor GR64:$src, (add GR64:$src, 1)),
2353 (BLCMSK64rr GR64:$src)>;
2355 def : Pat<(or GR32:$src, (add GR32:$src, 1)),
2356 (BLCS32rr GR32:$src)>;
2357 def : Pat<(or GR64:$src, (add GR64:$src, 1)),
2358 (BLCS64rr GR64:$src)>;
2360 def : Pat<(or GR32:$src, (add GR32:$src, -1)),
2361 (BLSFILL32rr GR32:$src)>;
2362 def : Pat<(or GR64:$src, (add GR64:$src, -1)),
2363 (BLSFILL64rr GR64:$src)>;
2365 def : Pat<(or (not GR32:$src), (add GR32:$src, -1)),
2366 (BLSIC32rr GR32:$src)>;
2367 def : Pat<(or (not GR64:$src), (add GR64:$src, -1)),
2368 (BLSIC64rr GR64:$src)>;
2370 def : Pat<(or (not GR32:$src), (add GR32:$src, 1)),
2371 (T1MSKC32rr GR32:$src)>;
2372 def : Pat<(or (not GR64:$src), (add GR64:$src, 1)),
2373 (T1MSKC64rr GR64:$src)>;
2375 def : Pat<(and (not GR32:$src), (add GR32:$src, -1)),
2376 (TZMSK32rr GR32:$src)>;
2377 def : Pat<(and (not GR64:$src), (add GR64:$src, -1)),
2378 (TZMSK64rr GR64:$src)>;
2381 //===----------------------------------------------------------------------===//
2383 //===----------------------------------------------------------------------===//
2385 include "X86InstrArithmetic.td"
2386 include "X86InstrCMovSetCC.td"
2387 include "X86InstrExtension.td"
2388 include "X86InstrControl.td"
2389 include "X86InstrShiftRotate.td"
2391 // X87 Floating Point Stack.
2392 include "X86InstrFPStack.td"
2394 // SIMD support (SSE, MMX and AVX)
2395 include "X86InstrFragmentsSIMD.td"
2397 // FMA - Fused Multiply-Add support (requires FMA)
2398 include "X86InstrFMA.td"
2401 include "X86InstrXOP.td"
2403 // SSE, MMX and 3DNow! vector support.
2404 include "X86InstrSSE.td"
2405 include "X86InstrAVX512.td"
2406 include "X86InstrMMX.td"
2407 include "X86Instr3DNow.td"
2409 include "X86InstrVMX.td"
2410 include "X86InstrSVM.td"
2412 include "X86InstrTSX.td"
2413 include "X86InstrSGX.td"
2415 // System instructions.
2416 include "X86InstrSystem.td"
2418 // Compiler Pseudo Instructions and Pat Patterns
2419 include "X86InstrCompiler.td"
2421 //===----------------------------------------------------------------------===//
2422 // Assembler Mnemonic Aliases
2423 //===----------------------------------------------------------------------===//
2425 def : MnemonicAlias<"call", "callw", "att">, Requires<[In16BitMode]>;
2426 def : MnemonicAlias<"call", "calll", "att">, Requires<[In32BitMode]>;
2427 def : MnemonicAlias<"call", "callq", "att">, Requires<[In64BitMode]>;
2429 def : MnemonicAlias<"cbw", "cbtw", "att">;
2430 def : MnemonicAlias<"cwde", "cwtl", "att">;
2431 def : MnemonicAlias<"cwd", "cwtd", "att">;
2432 def : MnemonicAlias<"cdq", "cltd", "att">;
2433 def : MnemonicAlias<"cdqe", "cltq", "att">;
2434 def : MnemonicAlias<"cqo", "cqto", "att">;
2436 // In 64-bit mode lret maps to lretl; it is not ambiguous with lretq.
2437 def : MnemonicAlias<"lret", "lretw", "att">, Requires<[In16BitMode]>;
2438 def : MnemonicAlias<"lret", "lretl", "att">, Requires<[Not16BitMode]>;
2440 def : MnemonicAlias<"leavel", "leave", "att">, Requires<[Not64BitMode]>;
2441 def : MnemonicAlias<"leaveq", "leave", "att">, Requires<[In64BitMode]>;
2443 def : MnemonicAlias<"loopz", "loope", "att">;
2444 def : MnemonicAlias<"loopnz", "loopne", "att">;
2446 def : MnemonicAlias<"pop", "popw", "att">, Requires<[In16BitMode]>;
2447 def : MnemonicAlias<"pop", "popl", "att">, Requires<[In32BitMode]>;
2448 def : MnemonicAlias<"pop", "popq", "att">, Requires<[In64BitMode]>;
2449 def : MnemonicAlias<"popf", "popfw", "att">, Requires<[In16BitMode]>;
2450 def : MnemonicAlias<"popf", "popfl", "att">, Requires<[In32BitMode]>;
2451 def : MnemonicAlias<"popf", "popfq", "att">, Requires<[In64BitMode]>;
2452 def : MnemonicAlias<"popfd", "popfl", "att">;
2454 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
2455 // all modes. However: "push (addr)" and "push $42" should default to
2456 // pushl/pushq depending on the current mode. Similar for "pop %bx"
2457 def : MnemonicAlias<"push", "pushw", "att">, Requires<[In16BitMode]>;
2458 def : MnemonicAlias<"push", "pushl", "att">, Requires<[In32BitMode]>;
2459 def : MnemonicAlias<"push", "pushq", "att">, Requires<[In64BitMode]>;
2460 def : MnemonicAlias<"pushf", "pushfw", "att">, Requires<[In16BitMode]>;
2461 def : MnemonicAlias<"pushf", "pushfl", "att">, Requires<[In32BitMode]>;
2462 def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>;
2463 def : MnemonicAlias<"pushfd", "pushfl", "att">;
2465 def : MnemonicAlias<"popad", "popal", "intel">, Requires<[Not64BitMode]>;
2466 def : MnemonicAlias<"pushad", "pushal", "intel">, Requires<[Not64BitMode]>;
2467 def : MnemonicAlias<"popa", "popaw", "intel">, Requires<[In16BitMode]>;
2468 def : MnemonicAlias<"pusha", "pushaw", "intel">, Requires<[In16BitMode]>;
2469 def : MnemonicAlias<"popa", "popal", "intel">, Requires<[In32BitMode]>;
2470 def : MnemonicAlias<"pusha", "pushal", "intel">, Requires<[In32BitMode]>;
2472 def : MnemonicAlias<"popa", "popaw", "att">, Requires<[In16BitMode]>;
2473 def : MnemonicAlias<"pusha", "pushaw", "att">, Requires<[In16BitMode]>;
2474 def : MnemonicAlias<"popa", "popal", "att">, Requires<[In32BitMode]>;
2475 def : MnemonicAlias<"pusha", "pushal", "att">, Requires<[In32BitMode]>;
2477 def : MnemonicAlias<"repe", "rep", "att">;
2478 def : MnemonicAlias<"repz", "rep", "att">;
2479 def : MnemonicAlias<"repnz", "repne", "att">;
2481 def : MnemonicAlias<"ret", "retw", "att">, Requires<[In16BitMode]>;
2482 def : MnemonicAlias<"ret", "retl", "att">, Requires<[In32BitMode]>;
2483 def : MnemonicAlias<"ret", "retq", "att">, Requires<[In64BitMode]>;
2485 def : MnemonicAlias<"salb", "shlb", "att">;
2486 def : MnemonicAlias<"salw", "shlw", "att">;
2487 def : MnemonicAlias<"sall", "shll", "att">;
2488 def : MnemonicAlias<"salq", "shlq", "att">;
2490 def : MnemonicAlias<"smovb", "movsb", "att">;
2491 def : MnemonicAlias<"smovw", "movsw", "att">;
2492 def : MnemonicAlias<"smovl", "movsl", "att">;
2493 def : MnemonicAlias<"smovq", "movsq", "att">;
2495 def : MnemonicAlias<"ud2a", "ud2", "att">;
2496 def : MnemonicAlias<"verrw", "verr", "att">;
2498 // System instruction aliases.
2499 def : MnemonicAlias<"iret", "iretw", "att">, Requires<[In16BitMode]>;
2500 def : MnemonicAlias<"iret", "iretl", "att">, Requires<[Not16BitMode]>;
2501 def : MnemonicAlias<"sysret", "sysretl", "att">;
2502 def : MnemonicAlias<"sysexit", "sysexitl", "att">;
2504 def : MnemonicAlias<"lgdt", "lgdtw", "att">, Requires<[In16BitMode]>;
2505 def : MnemonicAlias<"lgdt", "lgdtl", "att">, Requires<[In32BitMode]>;
2506 def : MnemonicAlias<"lgdt", "lgdtq", "att">, Requires<[In64BitMode]>;
2507 def : MnemonicAlias<"lidt", "lidtw", "att">, Requires<[In16BitMode]>;
2508 def : MnemonicAlias<"lidt", "lidtl", "att">, Requires<[In32BitMode]>;
2509 def : MnemonicAlias<"lidt", "lidtq", "att">, Requires<[In64BitMode]>;
2510 def : MnemonicAlias<"sgdt", "sgdtw", "att">, Requires<[In16BitMode]>;
2511 def : MnemonicAlias<"sgdt", "sgdtl", "att">, Requires<[In32BitMode]>;
2512 def : MnemonicAlias<"sgdt", "sgdtq", "att">, Requires<[In64BitMode]>;
2513 def : MnemonicAlias<"sidt", "sidtw", "att">, Requires<[In16BitMode]>;
2514 def : MnemonicAlias<"sidt", "sidtl", "att">, Requires<[In32BitMode]>;
2515 def : MnemonicAlias<"sidt", "sidtq", "att">, Requires<[In64BitMode]>;
2518 // Floating point stack aliases.
2519 def : MnemonicAlias<"fcmovz", "fcmove", "att">;
2520 def : MnemonicAlias<"fcmova", "fcmovnbe", "att">;
2521 def : MnemonicAlias<"fcmovnae", "fcmovb", "att">;
2522 def : MnemonicAlias<"fcmovna", "fcmovbe", "att">;
2523 def : MnemonicAlias<"fcmovae", "fcmovnb", "att">;
2524 def : MnemonicAlias<"fcomip", "fcompi", "att">;
2525 def : MnemonicAlias<"fildq", "fildll", "att">;
2526 def : MnemonicAlias<"fistpq", "fistpll", "att">;
2527 def : MnemonicAlias<"fisttpq", "fisttpll", "att">;
2528 def : MnemonicAlias<"fldcww", "fldcw", "att">;
2529 def : MnemonicAlias<"fnstcww", "fnstcw", "att">;
2530 def : MnemonicAlias<"fnstsww", "fnstsw", "att">;
2531 def : MnemonicAlias<"fucomip", "fucompi", "att">;
2532 def : MnemonicAlias<"fwait", "wait">;
2535 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond,
2537 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
2538 !strconcat(Prefix, NewCond, Suffix), VariantName>;
2540 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
2541 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
2542 /// example "setz" -> "sete".
2543 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix,
2545 def C : CondCodeAlias<Prefix, Suffix, "c", "b", V>; // setc -> setb
2546 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e", V>; // setz -> sete
2547 def NA : CondCodeAlias<Prefix, Suffix, "na", "be", V>; // setna -> setbe
2548 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae", V>; // setnb -> setae
2549 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae", V>; // setnc -> setae
2550 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le", V>; // setng -> setle
2551 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge", V>; // setnl -> setge
2552 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne", V>; // setnz -> setne
2553 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p", V>; // setpe -> setp
2554 def PO : CondCodeAlias<Prefix, Suffix, "po", "np", V>; // setpo -> setnp
2556 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b", V>; // setnae -> setb
2557 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a", V>; // setnbe -> seta
2558 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l", V>; // setnge -> setl
2559 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g", V>; // setnle -> setg
2562 // Aliases for set<CC>
2563 defm : IntegerCondCodeMnemonicAlias<"set", "">;
2564 // Aliases for j<CC>
2565 defm : IntegerCondCodeMnemonicAlias<"j", "">;
2566 // Aliases for cmov<CC>{w,l,q}
2567 defm : IntegerCondCodeMnemonicAlias<"cmov", "w", "att">;
2568 defm : IntegerCondCodeMnemonicAlias<"cmov", "l", "att">;
2569 defm : IntegerCondCodeMnemonicAlias<"cmov", "q", "att">;
2570 // No size suffix for intel-style asm.
2571 defm : IntegerCondCodeMnemonicAlias<"cmov", "", "intel">;
2574 //===----------------------------------------------------------------------===//
2575 // Assembler Instruction Aliases
2576 //===----------------------------------------------------------------------===//
2578 // aad/aam default to base 10 if no operand is specified.
2579 def : InstAlias<"aad", (AAD8i8 10)>;
2580 def : InstAlias<"aam", (AAM8i8 10)>;
2582 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
2583 // Likewise for btc/btr/bts.
2584 def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
2585 (BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2586 def : InstAlias<"btc {$imm, $mem|$mem, $imm}",
2587 (BTC32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2588 def : InstAlias<"btr {$imm, $mem|$mem, $imm}",
2589 (BTR32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2590 def : InstAlias<"bts {$imm, $mem|$mem, $imm}",
2591 (BTS32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2594 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
2595 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
2596 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
2597 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
2599 // lods aliases. Accept the destination being omitted because it's implicit
2600 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2601 // in the destination.
2602 def : InstAlias<"lodsb $src", (LODSB srcidx8:$src), 0>;
2603 def : InstAlias<"lodsw $src", (LODSW srcidx16:$src), 0>;
2604 def : InstAlias<"lods{l|d} $src", (LODSL srcidx32:$src), 0>;
2605 def : InstAlias<"lodsq $src", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2606 def : InstAlias<"lods {$src, %al|al, $src}", (LODSB srcidx8:$src), 0>;
2607 def : InstAlias<"lods {$src, %ax|ax, $src}", (LODSW srcidx16:$src), 0>;
2608 def : InstAlias<"lods {$src, %eax|eax, $src}", (LODSL srcidx32:$src), 0>;
2609 def : InstAlias<"lods {$src, %rax|rax, $src}", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2611 // stos aliases. Accept the source being omitted because it's implicit in
2612 // the mnemonic, or the mnemonic suffix being omitted because it's implicit
2614 def : InstAlias<"stosb $dst", (STOSB dstidx8:$dst), 0>;
2615 def : InstAlias<"stosw $dst", (STOSW dstidx16:$dst), 0>;
2616 def : InstAlias<"stos{l|d} $dst", (STOSL dstidx32:$dst), 0>;
2617 def : InstAlias<"stosq $dst", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2618 def : InstAlias<"stos {%al, $dst|$dst, al}", (STOSB dstidx8:$dst), 0>;
2619 def : InstAlias<"stos {%ax, $dst|$dst, ax}", (STOSW dstidx16:$dst), 0>;
2620 def : InstAlias<"stos {%eax, $dst|$dst, eax}", (STOSL dstidx32:$dst), 0>;
2621 def : InstAlias<"stos {%rax, $dst|$dst, rax}", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2623 // scas aliases. Accept the destination being omitted because it's implicit
2624 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2625 // in the destination.
2626 def : InstAlias<"scasb $dst", (SCASB dstidx8:$dst), 0>;
2627 def : InstAlias<"scasw $dst", (SCASW dstidx16:$dst), 0>;
2628 def : InstAlias<"scas{l|d} $dst", (SCASL dstidx32:$dst), 0>;
2629 def : InstAlias<"scasq $dst", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2630 def : InstAlias<"scas {$dst, %al|al, $dst}", (SCASB dstidx8:$dst), 0>;
2631 def : InstAlias<"scas {$dst, %ax|ax, $dst}", (SCASW dstidx16:$dst), 0>;
2632 def : InstAlias<"scas {$dst, %eax|eax, $dst}", (SCASL dstidx32:$dst), 0>;
2633 def : InstAlias<"scas {$dst, %rax|rax, $dst}", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2635 // div and idiv aliases for explicit A register.
2636 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8r GR8 :$src)>;
2637 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16r GR16:$src)>;
2638 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32r GR32:$src)>;
2639 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64r GR64:$src)>;
2640 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8m i8mem :$src)>;
2641 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16m i16mem:$src)>;
2642 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32m i32mem:$src)>;
2643 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64m i64mem:$src)>;
2644 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8r GR8 :$src)>;
2645 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16r GR16:$src)>;
2646 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32r GR32:$src)>;
2647 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64r GR64:$src)>;
2648 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8m i8mem :$src)>;
2649 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16m i16mem:$src)>;
2650 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32m i32mem:$src)>;
2651 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64m i64mem:$src)>;
2655 // Various unary fpstack operations default to operating on on ST1.
2656 // For example, "fxch" -> "fxch %st(1)"
2657 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
2658 def : InstAlias<"fsub{|r}p", (SUBR_FPrST0 ST1), 0>;
2659 def : InstAlias<"fsub{r|}p", (SUB_FPrST0 ST1), 0>;
2660 def : InstAlias<"fmulp", (MUL_FPrST0 ST1), 0>;
2661 def : InstAlias<"fdiv{|r}p", (DIVR_FPrST0 ST1), 0>;
2662 def : InstAlias<"fdiv{r|}p", (DIV_FPrST0 ST1), 0>;
2663 def : InstAlias<"fxch", (XCH_F ST1), 0>;
2664 def : InstAlias<"fcom", (COM_FST0r ST1), 0>;
2665 def : InstAlias<"fcomp", (COMP_FST0r ST1), 0>;
2666 def : InstAlias<"fcomi", (COM_FIr ST1), 0>;
2667 def : InstAlias<"fcompi", (COM_FIPr ST1), 0>;
2668 def : InstAlias<"fucom", (UCOM_Fr ST1), 0>;
2669 def : InstAlias<"fucomp", (UCOM_FPr ST1), 0>;
2670 def : InstAlias<"fucomi", (UCOM_FIr ST1), 0>;
2671 def : InstAlias<"fucompi", (UCOM_FIPr ST1), 0>;
2673 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
2674 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
2675 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
2677 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
2678 def : InstAlias<!strconcat(Mnemonic, "\t{$op, %st(0)|st(0), $op}"),
2679 (Inst RST:$op), EmitAlias>;
2680 def : InstAlias<!strconcat(Mnemonic, "\t{%st(0), %st(0)|st(0), st(0)}"),
2681 (Inst ST0), EmitAlias>;
2684 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
2685 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
2686 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
2687 defm : FpUnaryAlias<"fsub{|r}p", SUBR_FPrST0>;
2688 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
2689 defm : FpUnaryAlias<"fsub{r|}p", SUB_FPrST0>;
2690 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
2691 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
2692 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
2693 defm : FpUnaryAlias<"fdiv{|r}p", DIVR_FPrST0>;
2694 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
2695 defm : FpUnaryAlias<"fdiv{r|}p", DIV_FPrST0>;
2696 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
2697 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
2698 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
2699 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
2702 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
2703 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
2704 // solely because gas supports it.
2705 def : InstAlias<"faddp\t{%st(0), $op|$op, st(0)}", (ADD_FPrST0 RST:$op), 0>;
2706 def : InstAlias<"fmulp\t{%st(0), $op|$op, st(0)}", (MUL_FPrST0 RST:$op)>;
2707 def : InstAlias<"fsub{|r}p\t{%st(0), $op|$op, st(0)}", (SUBR_FPrST0 RST:$op)>;
2708 def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>;
2709 def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>;
2710 def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>;
2712 // We accept "fnstsw %eax" even though it only writes %ax.
2713 def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>;
2714 def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>;
2715 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
2717 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
2718 // this is compatible with what GAS does.
2719 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2720 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2721 def : InstAlias<"lcall {*}$dst", (FARCALL32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2722 def : InstAlias<"ljmp {*}$dst", (FARJMP32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2723 def : InstAlias<"lcall $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2724 def : InstAlias<"ljmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2725 def : InstAlias<"lcall {*}$dst", (FARCALL16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2726 def : InstAlias<"ljmp {*}$dst", (FARJMP16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2728 def : InstAlias<"call {*}$dst", (CALL64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2729 def : InstAlias<"jmp {*}$dst", (JMP64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2730 def : InstAlias<"call {*}$dst", (CALL32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2731 def : InstAlias<"jmp {*}$dst", (JMP32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2732 def : InstAlias<"call {*}$dst", (CALL16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2733 def : InstAlias<"jmp {*}$dst", (JMP16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2736 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
2737 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm), 0>;
2738 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm), 0>;
2739 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm), 0>;
2740 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm), 0>;
2741 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri32 GR64:$r, GR64:$r, i64i32imm:$imm), 0>;
2742 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm), 0>;
2744 // inb %dx -> inb %al, %dx
2745 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
2746 def : InstAlias<"inw\t{%dx|dx}", (IN16rr), 0>;
2747 def : InstAlias<"inl\t{%dx|dx}", (IN32rr), 0>;
2748 def : InstAlias<"inb\t$port", (IN8ri i8imm:$port), 0>;
2749 def : InstAlias<"inw\t$port", (IN16ri i8imm:$port), 0>;
2750 def : InstAlias<"inl\t$port", (IN32ri i8imm:$port), 0>;
2753 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
2754 def : InstAlias<"call $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2755 def : InstAlias<"jmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2756 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2757 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2758 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
2759 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
2760 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2761 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2763 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
2764 // the move. All segment/mem forms are equivalent, this has the shortest
2766 def : InstAlias<"mov {$mem, $seg|$seg, $mem}", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem), 0>;
2767 def : InstAlias<"mov {$seg, $mem|$mem, $seg}", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg), 0>;
2769 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
2770 def : InstAlias<"movq {$imm, $reg|$reg, $imm}", (MOV64ri GR64:$reg, i64imm:$imm), 0>;
2772 // Match 'movq GR64, MMX' as an alias for movd.
2773 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2774 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
2775 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2776 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
2779 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
2780 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
2781 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
2782 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
2783 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
2784 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
2785 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
2788 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
2789 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
2790 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
2791 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
2792 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
2793 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
2794 // Note: No GR32->GR64 movzx form.
2796 // outb %dx -> outb %al, %dx
2797 def : InstAlias<"outb\t{%dx|dx}", (OUT8rr), 0>;
2798 def : InstAlias<"outw\t{%dx|dx}", (OUT16rr), 0>;
2799 def : InstAlias<"outl\t{%dx|dx}", (OUT32rr), 0>;
2800 def : InstAlias<"outb\t$port", (OUT8ir i8imm:$port), 0>;
2801 def : InstAlias<"outw\t$port", (OUT16ir i8imm:$port), 0>;
2802 def : InstAlias<"outl\t$port", (OUT32ir i8imm:$port), 0>;
2804 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
2805 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
2806 // errors, since its encoding is the most compact.
2807 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem), 0>;
2809 // shld/shrd op,op -> shld op, op, CL
2810 def : InstAlias<"shld{w}\t{$r2, $r1|$r1, $r2}", (SHLD16rrCL GR16:$r1, GR16:$r2), 0>;
2811 def : InstAlias<"shld{l}\t{$r2, $r1|$r1, $r2}", (SHLD32rrCL GR32:$r1, GR32:$r2), 0>;
2812 def : InstAlias<"shld{q}\t{$r2, $r1|$r1, $r2}", (SHLD64rrCL GR64:$r1, GR64:$r2), 0>;
2813 def : InstAlias<"shrd{w}\t{$r2, $r1|$r1, $r2}", (SHRD16rrCL GR16:$r1, GR16:$r2), 0>;
2814 def : InstAlias<"shrd{l}\t{$r2, $r1|$r1, $r2}", (SHRD32rrCL GR32:$r1, GR32:$r2), 0>;
2815 def : InstAlias<"shrd{q}\t{$r2, $r1|$r1, $r2}", (SHRD64rrCL GR64:$r1, GR64:$r2), 0>;
2817 def : InstAlias<"shld{w}\t{$reg, $mem|$mem, $reg}", (SHLD16mrCL i16mem:$mem, GR16:$reg), 0>;
2818 def : InstAlias<"shld{l}\t{$reg, $mem|$mem, $reg}", (SHLD32mrCL i32mem:$mem, GR32:$reg), 0>;
2819 def : InstAlias<"shld{q}\t{$reg, $mem|$mem, $reg}", (SHLD64mrCL i64mem:$mem, GR64:$reg), 0>;
2820 def : InstAlias<"shrd{w}\t{$reg, $mem|$mem, $reg}", (SHRD16mrCL i16mem:$mem, GR16:$reg), 0>;
2821 def : InstAlias<"shrd{l}\t{$reg, $mem|$mem, $reg}", (SHRD32mrCL i32mem:$mem, GR32:$reg), 0>;
2822 def : InstAlias<"shrd{q}\t{$reg, $mem|$mem, $reg}", (SHRD64mrCL i64mem:$mem, GR64:$reg), 0>;
2824 /* FIXME: This is disabled because the asm matcher is currently incapable of
2825 * matching a fixed immediate like $1.
2826 // "shl X, $1" is an alias for "shl X".
2827 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
2828 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2829 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
2830 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2831 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
2832 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2833 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
2834 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2835 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
2836 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2837 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
2838 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2839 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
2840 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2841 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
2842 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2843 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
2846 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2847 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2848 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2849 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2852 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2853 def : InstAlias<"test{b}\t{$val, $mem|$mem, $val}",
2854 (TEST8rm GR8 :$val, i8mem :$mem), 0>;
2855 def : InstAlias<"test{w}\t{$val, $mem|$mem, $val}",
2856 (TEST16rm GR16:$val, i16mem:$mem), 0>;
2857 def : InstAlias<"test{l}\t{$val, $mem|$mem, $val}",
2858 (TEST32rm GR32:$val, i32mem:$mem), 0>;
2859 def : InstAlias<"test{q}\t{$val, $mem|$mem, $val}",
2860 (TEST64rm GR64:$val, i64mem:$mem), 0>;
2862 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2863 def : InstAlias<"xchg{b}\t{$mem, $val|$val, $mem}",
2864 (XCHG8rm GR8 :$val, i8mem :$mem), 0>;
2865 def : InstAlias<"xchg{w}\t{$mem, $val|$val, $mem}",
2866 (XCHG16rm GR16:$val, i16mem:$mem), 0>;
2867 def : InstAlias<"xchg{l}\t{$mem, $val|$val, $mem}",
2868 (XCHG32rm GR32:$val, i32mem:$mem), 0>;
2869 def : InstAlias<"xchg{q}\t{$mem, $val|$val, $mem}",
2870 (XCHG64rm GR64:$val, i64mem:$mem), 0>;
2872 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2873 def : InstAlias<"xchg{w}\t{%ax, $src|$src, ax}", (XCHG16ar GR16:$src), 0>;
2874 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2875 (XCHG32ar GR32:$src), 0>, Requires<[Not64BitMode]>;
2876 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2877 (XCHG32ar64 GR32_NOAX:$src), 0>, Requires<[In64BitMode]>;
2878 def : InstAlias<"xchg{q}\t{%rax, $src|$src, rax}", (XCHG64ar GR64:$src), 0>;