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 X86RecoverFrameAlloc : SDNode<"ISD::FRAME_ALLOC_RECOVER",
198 SDTypeProfile<1, 1, [SDTCisSameAs<0, 1>,
201 def X86tlsaddr : SDNode<"X86ISD::TLSADDR", SDT_X86TLSADDR,
202 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
204 def X86tlsbaseaddr : SDNode<"X86ISD::TLSBASEADDR", SDT_X86TLSBASEADDR,
205 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
207 def X86ehret : SDNode<"X86ISD::EH_RETURN", SDT_X86EHRET,
210 def X86eh_sjlj_setjmp : SDNode<"X86ISD::EH_SJLJ_SETJMP",
211 SDTypeProfile<1, 1, [SDTCisInt<0>,
213 [SDNPHasChain, SDNPSideEffect]>;
214 def X86eh_sjlj_longjmp : SDNode<"X86ISD::EH_SJLJ_LONGJMP",
215 SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>,
216 [SDNPHasChain, SDNPSideEffect]>;
218 def X86tcret : SDNode<"X86ISD::TC_RETURN", SDT_X86TCRET,
219 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
221 def X86add_flag : SDNode<"X86ISD::ADD", SDTBinaryArithWithFlags,
223 def X86sub_flag : SDNode<"X86ISD::SUB", SDTBinaryArithWithFlags>;
224 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
226 def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
228 def X86adc_flag : SDNode<"X86ISD::ADC", SDTBinaryArithWithFlagsInOut>;
229 def X86sbb_flag : SDNode<"X86ISD::SBB", SDTBinaryArithWithFlagsInOut>;
231 def X86inc_flag : SDNode<"X86ISD::INC", SDTUnaryArithWithFlags>;
232 def X86dec_flag : SDNode<"X86ISD::DEC", SDTUnaryArithWithFlags>;
233 def X86or_flag : SDNode<"X86ISD::OR", SDTBinaryArithWithFlags,
235 def X86xor_flag : SDNode<"X86ISD::XOR", SDTBinaryArithWithFlags,
237 def X86and_flag : SDNode<"X86ISD::AND", SDTBinaryArithWithFlags,
240 def X86bextr : SDNode<"X86ISD::BEXTR", SDTIntBinOp>;
242 def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>;
244 def X86WinAlloca : SDNode<"X86ISD::WIN_ALLOCA", SDTX86Void,
245 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
247 def X86SegAlloca : SDNode<"X86ISD::SEG_ALLOCA", SDT_X86SEG_ALLOCA,
250 def X86TLSCall : SDNode<"X86ISD::TLSCALL", SDT_X86TLSCALL,
251 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
253 def X86WinFTOL : SDNode<"X86ISD::WIN_FTOL", SDT_X86WIN_FTOL,
254 [SDNPHasChain, SDNPOutGlue]>;
256 //===----------------------------------------------------------------------===//
257 // X86 Operand Definitions.
260 // A version of ptr_rc which excludes SP, ESP, and RSP. This is used for
261 // the index operand of an address, to conform to x86 encoding restrictions.
262 def ptr_rc_nosp : PointerLikeRegClass<1>;
264 // *mem - Operand definitions for the funky X86 addressing mode operands.
266 def X86MemAsmOperand : AsmOperandClass {
269 let RenderMethod = "addMemOperands" in {
270 def X86Mem8AsmOperand : AsmOperandClass { let Name = "Mem8"; }
271 def X86Mem16AsmOperand : AsmOperandClass { let Name = "Mem16"; }
272 def X86Mem32AsmOperand : AsmOperandClass { let Name = "Mem32"; }
273 def X86Mem64AsmOperand : AsmOperandClass { let Name = "Mem64"; }
274 def X86Mem80AsmOperand : AsmOperandClass { let Name = "Mem80"; }
275 def X86Mem128AsmOperand : AsmOperandClass { let Name = "Mem128"; }
276 def X86Mem256AsmOperand : AsmOperandClass { let Name = "Mem256"; }
277 def X86Mem512AsmOperand : AsmOperandClass { let Name = "Mem512"; }
278 // Gather mem operands
279 def X86MemVX32Operand : AsmOperandClass { let Name = "MemVX32"; }
280 def X86MemVY32Operand : AsmOperandClass { let Name = "MemVY32"; }
281 def X86MemVZ32Operand : AsmOperandClass { let Name = "MemVZ32"; }
282 def X86MemVX64Operand : AsmOperandClass { let Name = "MemVX64"; }
283 def X86MemVY64Operand : AsmOperandClass { let Name = "MemVY64"; }
284 def X86MemVZ64Operand : AsmOperandClass { let Name = "MemVZ64"; }
287 def X86AbsMemAsmOperand : AsmOperandClass {
289 let SuperClasses = [X86MemAsmOperand];
292 class X86MemOperand<string printMethod,
293 AsmOperandClass parserMatchClass = X86MemAsmOperand> : Operand<iPTR> {
294 let PrintMethod = printMethod;
295 let MIOperandInfo = (ops ptr_rc, i8imm, ptr_rc_nosp, i32imm, i8imm);
296 let ParserMatchClass = parserMatchClass;
297 let OperandType = "OPERAND_MEMORY";
300 // Gather mem operands
301 class X86VMemOperand<RegisterClass RC, string printMethod,
302 AsmOperandClass parserMatchClass>
303 : X86MemOperand<printMethod, parserMatchClass> {
304 let MIOperandInfo = (ops ptr_rc, i8imm, RC, i32imm, i8imm);
307 def anymem : X86MemOperand<"printanymem">;
309 def opaque32mem : X86MemOperand<"printopaquemem">;
310 def opaque48mem : X86MemOperand<"printopaquemem">;
311 def opaque80mem : X86MemOperand<"printopaquemem">;
312 def opaque512mem : X86MemOperand<"printopaquemem">;
314 def i8mem : X86MemOperand<"printi8mem", X86Mem8AsmOperand>;
315 def i16mem : X86MemOperand<"printi16mem", X86Mem16AsmOperand>;
316 def i32mem : X86MemOperand<"printi32mem", X86Mem32AsmOperand>;
317 def i64mem : X86MemOperand<"printi64mem", X86Mem64AsmOperand>;
318 def i128mem : X86MemOperand<"printi128mem", X86Mem128AsmOperand>;
319 def i256mem : X86MemOperand<"printi256mem", X86Mem256AsmOperand>;
320 def i512mem : X86MemOperand<"printi512mem", X86Mem512AsmOperand>;
321 def f32mem : X86MemOperand<"printf32mem", X86Mem32AsmOperand>;
322 def f64mem : X86MemOperand<"printf64mem", X86Mem64AsmOperand>;
323 def f80mem : X86MemOperand<"printf80mem", X86Mem80AsmOperand>;
324 def f128mem : X86MemOperand<"printf128mem", X86Mem128AsmOperand>;
325 def f256mem : X86MemOperand<"printf256mem", X86Mem256AsmOperand>;
326 def f512mem : X86MemOperand<"printf512mem", X86Mem512AsmOperand>;
328 def v512mem : X86VMemOperand<VR512, "printf512mem", X86Mem512AsmOperand>;
330 // Gather mem operands
331 def vx32mem : X86VMemOperand<VR128, "printi32mem", X86MemVX32Operand>;
332 def vy32mem : X86VMemOperand<VR256, "printi32mem", X86MemVY32Operand>;
333 def vx64mem : X86VMemOperand<VR128, "printi64mem", X86MemVX64Operand>;
334 def vy64mem : X86VMemOperand<VR256, "printi64mem", X86MemVY64Operand>;
335 def vy64xmem : X86VMemOperand<VR256X, "printi64mem", X86MemVY64Operand>;
336 def vz32mem : X86VMemOperand<VR512, "printi32mem", X86MemVZ32Operand>;
337 def vz64mem : X86VMemOperand<VR512, "printi64mem", X86MemVZ64Operand>;
339 // A version of i8mem for use on x86-64 that uses GR64_NOREX instead of
340 // plain GR64, so that it doesn't potentially require a REX prefix.
341 def i8mem_NOREX : Operand<i64> {
342 let PrintMethod = "printi8mem";
343 let MIOperandInfo = (ops GR64_NOREX, i8imm, GR64_NOREX_NOSP, i32imm, i8imm);
344 let ParserMatchClass = X86Mem8AsmOperand;
345 let OperandType = "OPERAND_MEMORY";
348 // GPRs available for tailcall.
349 // It represents GR32_TC, GR64_TC or GR64_TCW64.
350 def ptr_rc_tailcall : PointerLikeRegClass<2>;
352 // Special i32mem for addresses of load folding tail calls. These are not
353 // allowed to use callee-saved registers since they must be scheduled
354 // after callee-saved register are popped.
355 def i32mem_TC : Operand<i32> {
356 let PrintMethod = "printi32mem";
357 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm, ptr_rc_tailcall,
359 let ParserMatchClass = X86Mem32AsmOperand;
360 let OperandType = "OPERAND_MEMORY";
363 // Special i64mem for addresses of load folding tail calls. These are not
364 // allowed to use callee-saved registers since they must be scheduled
365 // after callee-saved register are popped.
366 def i64mem_TC : Operand<i64> {
367 let PrintMethod = "printi64mem";
368 let MIOperandInfo = (ops ptr_rc_tailcall, i8imm,
369 ptr_rc_tailcall, i32imm, i8imm);
370 let ParserMatchClass = X86Mem64AsmOperand;
371 let OperandType = "OPERAND_MEMORY";
374 let OperandType = "OPERAND_PCREL",
375 ParserMatchClass = X86AbsMemAsmOperand,
376 PrintMethod = "printPCRelImm" in {
377 def i32imm_pcrel : Operand<i32>;
378 def i16imm_pcrel : Operand<i16>;
380 // Branch targets have OtherVT type and print as pc-relative values.
381 def brtarget : Operand<OtherVT>;
382 def brtarget8 : Operand<OtherVT>;
386 // Special parsers to detect mode to disambiguate.
387 def X86AbsMem16AsmOperand : AsmOperandClass {
388 let Name = "AbsMem16";
389 let RenderMethod = "addAbsMemOperands";
390 let SuperClasses = [X86AbsMemAsmOperand];
393 def X86AbsMem32AsmOperand : AsmOperandClass {
394 let Name = "AbsMem32";
395 let RenderMethod = "addAbsMemOperands";
396 let SuperClasses = [X86AbsMemAsmOperand];
399 // Branch targets have OtherVT type and print as pc-relative values.
400 let OperandType = "OPERAND_PCREL",
401 PrintMethod = "printPCRelImm" in {
402 let ParserMatchClass = X86AbsMem16AsmOperand in
403 def brtarget16 : Operand<OtherVT>;
404 let ParserMatchClass = X86AbsMem32AsmOperand in
405 def brtarget32 : Operand<OtherVT>;
408 let RenderMethod = "addSrcIdxOperands" in {
409 def X86SrcIdx8Operand : AsmOperandClass {
410 let Name = "SrcIdx8";
411 let SuperClasses = [X86Mem8AsmOperand];
413 def X86SrcIdx16Operand : AsmOperandClass {
414 let Name = "SrcIdx16";
415 let SuperClasses = [X86Mem16AsmOperand];
417 def X86SrcIdx32Operand : AsmOperandClass {
418 let Name = "SrcIdx32";
419 let SuperClasses = [X86Mem32AsmOperand];
421 def X86SrcIdx64Operand : AsmOperandClass {
422 let Name = "SrcIdx64";
423 let SuperClasses = [X86Mem64AsmOperand];
425 } // RenderMethod = "addSrcIdxOperands"
427 let RenderMethod = "addDstIdxOperands" in {
428 def X86DstIdx8Operand : AsmOperandClass {
429 let Name = "DstIdx8";
430 let SuperClasses = [X86Mem8AsmOperand];
432 def X86DstIdx16Operand : AsmOperandClass {
433 let Name = "DstIdx16";
434 let SuperClasses = [X86Mem16AsmOperand];
436 def X86DstIdx32Operand : AsmOperandClass {
437 let Name = "DstIdx32";
438 let SuperClasses = [X86Mem32AsmOperand];
440 def X86DstIdx64Operand : AsmOperandClass {
441 let Name = "DstIdx64";
442 let SuperClasses = [X86Mem64AsmOperand];
444 } // RenderMethod = "addDstIdxOperands"
446 let RenderMethod = "addMemOffsOperands" in {
447 def X86MemOffs16_8AsmOperand : AsmOperandClass {
448 let Name = "MemOffs16_8";
449 let SuperClasses = [X86Mem8AsmOperand];
451 def X86MemOffs16_16AsmOperand : AsmOperandClass {
452 let Name = "MemOffs16_16";
453 let SuperClasses = [X86Mem16AsmOperand];
455 def X86MemOffs16_32AsmOperand : AsmOperandClass {
456 let Name = "MemOffs16_32";
457 let SuperClasses = [X86Mem32AsmOperand];
459 def X86MemOffs32_8AsmOperand : AsmOperandClass {
460 let Name = "MemOffs32_8";
461 let SuperClasses = [X86Mem8AsmOperand];
463 def X86MemOffs32_16AsmOperand : AsmOperandClass {
464 let Name = "MemOffs32_16";
465 let SuperClasses = [X86Mem16AsmOperand];
467 def X86MemOffs32_32AsmOperand : AsmOperandClass {
468 let Name = "MemOffs32_32";
469 let SuperClasses = [X86Mem32AsmOperand];
471 def X86MemOffs32_64AsmOperand : AsmOperandClass {
472 let Name = "MemOffs32_64";
473 let SuperClasses = [X86Mem64AsmOperand];
475 def X86MemOffs64_8AsmOperand : AsmOperandClass {
476 let Name = "MemOffs64_8";
477 let SuperClasses = [X86Mem8AsmOperand];
479 def X86MemOffs64_16AsmOperand : AsmOperandClass {
480 let Name = "MemOffs64_16";
481 let SuperClasses = [X86Mem16AsmOperand];
483 def X86MemOffs64_32AsmOperand : AsmOperandClass {
484 let Name = "MemOffs64_32";
485 let SuperClasses = [X86Mem32AsmOperand];
487 def X86MemOffs64_64AsmOperand : AsmOperandClass {
488 let Name = "MemOffs64_64";
489 let SuperClasses = [X86Mem64AsmOperand];
491 } // RenderMethod = "addMemOffsOperands"
493 class X86SrcIdxOperand<string printMethod, AsmOperandClass parserMatchClass>
494 : X86MemOperand<printMethod, parserMatchClass> {
495 let MIOperandInfo = (ops ptr_rc, i8imm);
498 class X86DstIdxOperand<string printMethod, AsmOperandClass parserMatchClass>
499 : X86MemOperand<printMethod, parserMatchClass> {
500 let MIOperandInfo = (ops ptr_rc);
503 def srcidx8 : X86SrcIdxOperand<"printSrcIdx8", X86SrcIdx8Operand>;
504 def srcidx16 : X86SrcIdxOperand<"printSrcIdx16", X86SrcIdx16Operand>;
505 def srcidx32 : X86SrcIdxOperand<"printSrcIdx32", X86SrcIdx32Operand>;
506 def srcidx64 : X86SrcIdxOperand<"printSrcIdx64", X86SrcIdx64Operand>;
507 def dstidx8 : X86DstIdxOperand<"printDstIdx8", X86DstIdx8Operand>;
508 def dstidx16 : X86DstIdxOperand<"printDstIdx16", X86DstIdx16Operand>;
509 def dstidx32 : X86DstIdxOperand<"printDstIdx32", X86DstIdx32Operand>;
510 def dstidx64 : X86DstIdxOperand<"printDstIdx64", X86DstIdx64Operand>;
512 class X86MemOffsOperand<Operand immOperand, string printMethod,
513 AsmOperandClass parserMatchClass>
514 : X86MemOperand<printMethod, parserMatchClass> {
515 let MIOperandInfo = (ops immOperand, i8imm);
518 def offset16_8 : X86MemOffsOperand<i16imm, "printMemOffs8",
519 X86MemOffs16_8AsmOperand>;
520 def offset16_16 : X86MemOffsOperand<i16imm, "printMemOffs16",
521 X86MemOffs16_16AsmOperand>;
522 def offset16_32 : X86MemOffsOperand<i16imm, "printMemOffs32",
523 X86MemOffs16_32AsmOperand>;
524 def offset32_8 : X86MemOffsOperand<i32imm, "printMemOffs8",
525 X86MemOffs32_8AsmOperand>;
526 def offset32_16 : X86MemOffsOperand<i32imm, "printMemOffs16",
527 X86MemOffs32_16AsmOperand>;
528 def offset32_32 : X86MemOffsOperand<i32imm, "printMemOffs32",
529 X86MemOffs32_32AsmOperand>;
530 def offset32_64 : X86MemOffsOperand<i32imm, "printMemOffs64",
531 X86MemOffs32_64AsmOperand>;
532 def offset64_8 : X86MemOffsOperand<i64imm, "printMemOffs8",
533 X86MemOffs64_8AsmOperand>;
534 def offset64_16 : X86MemOffsOperand<i64imm, "printMemOffs16",
535 X86MemOffs64_16AsmOperand>;
536 def offset64_32 : X86MemOffsOperand<i64imm, "printMemOffs32",
537 X86MemOffs64_32AsmOperand>;
538 def offset64_64 : X86MemOffsOperand<i64imm, "printMemOffs64",
539 X86MemOffs64_64AsmOperand>;
541 def SSECC : Operand<i8> {
542 let PrintMethod = "printSSECC";
543 let OperandType = "OPERAND_IMMEDIATE";
546 def i8immZExt3 : ImmLeaf<i8, [{
547 return Imm >= 0 && Imm < 8;
550 def AVXCC : Operand<i8> {
551 let PrintMethod = "printAVXCC";
552 let OperandType = "OPERAND_IMMEDIATE";
555 def i8immZExt5 : ImmLeaf<i8, [{
556 return Imm >= 0 && Imm < 32;
559 class ImmSExtAsmOperandClass : AsmOperandClass {
560 let SuperClasses = [ImmAsmOperand];
561 let RenderMethod = "addImmOperands";
564 def X86GR32orGR64AsmOperand : AsmOperandClass {
565 let Name = "GR32orGR64";
568 def GR32orGR64 : RegisterOperand<GR32> {
569 let ParserMatchClass = X86GR32orGR64AsmOperand;
572 def AVX512RC : Operand<i32> {
573 let PrintMethod = "printRoundingControl";
574 let OperandType = "OPERAND_IMMEDIATE";
577 // Sign-extended immediate classes. We don't need to define the full lattice
578 // here because there is no instruction with an ambiguity between ImmSExti64i32
581 // The strange ranges come from the fact that the assembler always works with
582 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
583 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
586 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
587 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
588 let Name = "ImmSExti64i32";
591 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
592 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
593 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
594 let Name = "ImmSExti16i8";
595 let SuperClasses = [ImmSExti64i32AsmOperand];
598 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
599 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
600 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
601 let Name = "ImmSExti32i8";
605 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
606 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
607 let Name = "ImmSExti64i8";
608 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
609 ImmSExti64i32AsmOperand];
612 // Unsigned immediate used by SSE/AVX instructions
614 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
615 def ImmUnsignedi8AsmOperand : AsmOperandClass {
616 let Name = "ImmUnsignedi8";
617 let RenderMethod = "addImmOperands";
620 // A couple of more descriptive operand definitions.
621 // 16-bits but only 8 bits are significant.
622 def i16i8imm : Operand<i16> {
623 let ParserMatchClass = ImmSExti16i8AsmOperand;
624 let OperandType = "OPERAND_IMMEDIATE";
626 // 32-bits but only 8 bits are significant.
627 def i32i8imm : Operand<i32> {
628 let ParserMatchClass = ImmSExti32i8AsmOperand;
629 let OperandType = "OPERAND_IMMEDIATE";
632 // 64-bits but only 32 bits are significant.
633 def i64i32imm : Operand<i64> {
634 let ParserMatchClass = ImmSExti64i32AsmOperand;
635 let OperandType = "OPERAND_IMMEDIATE";
638 // 64-bits but only 8 bits are significant.
639 def i64i8imm : Operand<i64> {
640 let ParserMatchClass = ImmSExti64i8AsmOperand;
641 let OperandType = "OPERAND_IMMEDIATE";
644 // Unsigned 8-bit immediate used by SSE/AVX instructions.
645 def u8imm : Operand<i8> {
646 let PrintMethod = "printU8Imm";
647 let ParserMatchClass = ImmUnsignedi8AsmOperand;
648 let OperandType = "OPERAND_IMMEDIATE";
651 // 64-bits but only 32 bits are significant, and those bits are treated as being
653 def i64i32imm_pcrel : Operand<i64> {
654 let PrintMethod = "printPCRelImm";
655 let ParserMatchClass = X86AbsMemAsmOperand;
656 let OperandType = "OPERAND_PCREL";
659 def lea64_32mem : Operand<i32> {
660 let PrintMethod = "printanymem";
661 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
662 let ParserMatchClass = X86MemAsmOperand;
665 // Memory operands that use 64-bit pointers in both ILP32 and LP64.
666 def lea64mem : Operand<i64> {
667 let PrintMethod = "printanymem";
668 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
669 let ParserMatchClass = X86MemAsmOperand;
673 //===----------------------------------------------------------------------===//
674 // X86 Complex Pattern Definitions.
677 // Define X86 specific addressing mode.
678 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
679 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
680 [add, sub, mul, X86mul_imm, shl, or, frameindex],
682 // In 64-bit mode 32-bit LEAs can use RIP-relative addressing.
683 def lea64_32addr : ComplexPattern<i32, 5, "SelectLEA64_32Addr",
684 [add, sub, mul, X86mul_imm, shl, or,
685 frameindex, X86WrapperRIP],
688 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
689 [tglobaltlsaddr], []>;
691 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
692 [tglobaltlsaddr], []>;
694 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
695 [add, sub, mul, X86mul_imm, shl, or, frameindex,
698 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
699 [tglobaltlsaddr], []>;
701 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
702 [tglobaltlsaddr], []>;
704 //===----------------------------------------------------------------------===//
705 // X86 Instruction Predicate Definitions.
706 def HasCMov : Predicate<"Subtarget->hasCMov()">;
707 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
709 def HasMMX : Predicate<"Subtarget->hasMMX()">;
710 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
711 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
712 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
713 def UseSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
714 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
715 def UseSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
716 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
717 def UseSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
718 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
719 def UseSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
720 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
721 def NoSSE41 : Predicate<"!Subtarget->hasSSE41()">;
722 def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
723 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
724 def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
725 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
726 def HasAVX : Predicate<"Subtarget->hasAVX()">;
727 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
728 def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;
729 def HasAVX512 : Predicate<"Subtarget->hasAVX512()">,
730 AssemblerPredicate<"FeatureAVX512", "AVX-512 ISA">;
731 def UseAVX : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX512()">;
732 def UseAVX2 : Predicate<"Subtarget->hasAVX2() && !Subtarget->hasAVX512()">;
733 def NoAVX512 : Predicate<"!Subtarget->hasAVX512()">;
734 def HasCDI : Predicate<"Subtarget->hasCDI()">;
735 def HasPFI : Predicate<"Subtarget->hasPFI()">;
736 def HasERI : Predicate<"Subtarget->hasERI()">;
737 def HasDQI : Predicate<"Subtarget->hasDQI()">;
738 def NoDQI : Predicate<"!Subtarget->hasDQI()">;
739 def HasBWI : Predicate<"Subtarget->hasBWI()">;
740 def HasVLX : Predicate<"Subtarget->hasVLX()">,
741 AssemblerPredicate<"FeatureVLX", "AVX-512 VLX ISA">;
742 def NoVLX : Predicate<"!Subtarget->hasVLX()">;
744 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
745 def HasAES : Predicate<"Subtarget->hasAES()">;
746 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
747 def HasFMA : Predicate<"Subtarget->hasFMA()">;
748 def UseFMAOnAVX : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
749 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
750 def HasXOP : Predicate<"Subtarget->hasXOP()">;
751 def HasTBM : Predicate<"Subtarget->hasTBM()">;
752 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
753 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
754 def HasF16C : Predicate<"Subtarget->hasF16C()">;
755 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
756 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
757 def HasBMI : Predicate<"Subtarget->hasBMI()">;
758 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
759 def HasRTM : Predicate<"Subtarget->hasRTM()">;
760 def HasHLE : Predicate<"Subtarget->hasHLE()">;
761 def HasTSX : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
762 def HasADX : Predicate<"Subtarget->hasADX()">;
763 def HasSHA : Predicate<"Subtarget->hasSHA()">;
764 def HasSGX : Predicate<"Subtarget->hasSGX()">;
765 def HasPRFCHW : Predicate<"Subtarget->hasPRFCHW()">;
766 def HasRDSEED : Predicate<"Subtarget->hasRDSEED()">;
767 def HasSMAP : Predicate<"Subtarget->hasSMAP()">;
768 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;
769 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
770 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
771 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
772 def Not64BitMode : Predicate<"!Subtarget->is64Bit()">,
773 AssemblerPredicate<"!Mode64Bit", "Not 64-bit mode">;
774 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
775 AssemblerPredicate<"Mode64Bit", "64-bit mode">;
776 def IsLP64 : Predicate<"Subtarget->isTarget64BitLP64()">;
777 def NotLP64 : Predicate<"!Subtarget->isTarget64BitLP64()">;
778 def In16BitMode : Predicate<"Subtarget->is16Bit()">,
779 AssemblerPredicate<"Mode16Bit", "16-bit mode">;
780 def Not16BitMode : Predicate<"!Subtarget->is16Bit()">,
781 AssemblerPredicate<"!Mode16Bit", "Not 16-bit mode">;
782 def In32BitMode : Predicate<"Subtarget->is32Bit()">,
783 AssemblerPredicate<"Mode32Bit", "32-bit mode">;
784 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
785 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
786 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
787 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
788 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
789 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
790 "TM.getCodeModel() != CodeModel::Kernel">;
791 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
792 "TM.getCodeModel() == CodeModel::Kernel">;
793 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
794 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
795 def OptForSize : Predicate<"OptForSize">;
796 def OptForSpeed : Predicate<"!OptForSize">;
797 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
798 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
799 def FavorMemIndirectCall : Predicate<"!Subtarget->callRegIndirect()">;
800 def NotSlowIncDec : Predicate<"!Subtarget->slowIncDec()">;
801 def HasFastMem32 : Predicate<"!Subtarget->isUnalignedMem32Slow()">;
803 //===----------------------------------------------------------------------===//
804 // X86 Instruction Format Definitions.
807 include "X86InstrFormats.td"
809 //===----------------------------------------------------------------------===//
810 // Pattern fragments.
813 // X86 specific condition code. These correspond to CondCode in
814 // X86InstrInfo.h. They must be kept in synch.
815 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
816 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
817 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
818 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
819 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
820 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
821 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
822 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
823 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
824 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
825 def X86_COND_NO : PatLeaf<(i8 10)>;
826 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
827 def X86_COND_NS : PatLeaf<(i8 12)>;
828 def X86_COND_O : PatLeaf<(i8 13)>;
829 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
830 def X86_COND_S : PatLeaf<(i8 15)>;
832 // Predicate used to help when pattern matching LZCNT/TZCNT.
833 def X86_COND_E_OR_NE : ImmLeaf<i8, [{
834 return (Imm == X86::COND_E) || (Imm == X86::COND_NE);
837 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
838 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
839 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
840 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
843 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
846 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
848 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
850 def i64immZExt32SExt8 : ImmLeaf<i64, [{
851 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
854 // Helper fragments for loads.
855 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
856 // known to be 32-bit aligned or better. Ditto for i8 to i16.
857 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
858 LoadSDNode *LD = cast<LoadSDNode>(N);
859 ISD::LoadExtType ExtType = LD->getExtensionType();
860 if (ExtType == ISD::NON_EXTLOAD)
862 if (ExtType == ISD::EXTLOAD)
863 return LD->getAlignment() >= 2 && !LD->isVolatile();
867 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
868 LoadSDNode *LD = cast<LoadSDNode>(N);
869 ISD::LoadExtType ExtType = LD->getExtensionType();
870 if (ExtType == ISD::EXTLOAD)
871 return LD->getAlignment() >= 2 && !LD->isVolatile();
875 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
876 LoadSDNode *LD = cast<LoadSDNode>(N);
877 ISD::LoadExtType ExtType = LD->getExtensionType();
878 if (ExtType == ISD::NON_EXTLOAD)
880 if (ExtType == ISD::EXTLOAD)
881 return LD->getAlignment() >= 4 && !LD->isVolatile();
885 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
886 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
887 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
888 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
889 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
891 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
892 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
893 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
894 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
895 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
896 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
898 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
899 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
900 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
901 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
902 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
903 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
904 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
905 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
906 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
907 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
909 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
910 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
911 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
912 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
913 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
914 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
915 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
916 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
917 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
918 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
921 // An 'and' node with a single use.
922 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
923 return N->hasOneUse();
925 // An 'srl' node with a single use.
926 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
927 return N->hasOneUse();
929 // An 'trunc' node with a single use.
930 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
931 return N->hasOneUse();
934 //===----------------------------------------------------------------------===//
939 let hasSideEffects = 0, SchedRW = [WriteZero] in {
940 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
941 def NOOPW : I<0x1f, MRMXm, (outs), (ins i16mem:$zero),
942 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize16;
943 def NOOPL : I<0x1f, MRMXm, (outs), (ins i32mem:$zero),
944 "nop{l}\t$zero", [], IIC_NOP>, TB, OpSize32;
948 // Constructing a stack frame.
949 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
950 "enter\t$len, $lvl", [], IIC_ENTER>, Sched<[WriteMicrocoded]>;
952 let SchedRW = [WriteALU] in {
953 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, hasSideEffects=0 in
954 def LEAVE : I<0xC9, RawFrm,
955 (outs), (ins), "leave", [], IIC_LEAVE>,
956 Requires<[Not64BitMode]>;
958 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, hasSideEffects = 0 in
959 def LEAVE64 : I<0xC9, RawFrm,
960 (outs), (ins), "leave", [], IIC_LEAVE>,
961 Requires<[In64BitMode]>;
964 //===----------------------------------------------------------------------===//
965 // Miscellaneous Instructions.
968 let Defs = [ESP], Uses = [ESP], hasSideEffects=0 in {
969 let mayLoad = 1, SchedRW = [WriteLoad] in {
970 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
971 IIC_POP_REG16>, OpSize16;
972 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
973 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
974 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
975 IIC_POP_REG>, OpSize16;
976 def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
977 IIC_POP_MEM>, OpSize16;
978 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
979 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
980 def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
981 IIC_POP_MEM>, OpSize32, Requires<[Not64BitMode]>;
982 } // mayLoad, SchedRW
984 let mayStore = 1, SchedRW = [WriteStore] in {
985 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
986 IIC_PUSH_REG>, OpSize16;
987 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
988 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
989 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
990 IIC_PUSH_REG>, OpSize16;
991 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
992 IIC_PUSH_MEM>, OpSize16;
993 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
994 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
995 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
996 IIC_PUSH_MEM>, OpSize32, Requires<[Not64BitMode]>;
998 def PUSH16i8 : Ii8<0x6a, RawFrm, (outs), (ins i16i8imm:$imm),
999 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1000 Requires<[Not64BitMode]>;
1001 def PUSH32i8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
1002 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1003 Requires<[Not64BitMode]>;
1004 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1005 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1006 Requires<[Not64BitMode]>;
1007 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
1008 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1009 Requires<[Not64BitMode]>;
1010 } // mayStore, SchedRW
1013 let Defs = [ESP, EFLAGS], Uses = [ESP], mayLoad = 1, hasSideEffects=0,
1014 SchedRW = [WriteLoad] in {
1015 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>,
1017 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
1018 OpSize32, Requires<[Not64BitMode]>;
1021 let Defs = [ESP], Uses = [ESP, EFLAGS], mayStore = 1, hasSideEffects=0,
1022 SchedRW = [WriteStore] in {
1023 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
1025 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
1026 OpSize32, Requires<[Not64BitMode]>;
1029 let Defs = [RSP], Uses = [RSP], hasSideEffects=0 in {
1030 let mayLoad = 1, SchedRW = [WriteLoad] in {
1031 def POP64r : I<0x58, AddRegFrm, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1032 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1033 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1034 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1035 def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
1036 IIC_POP_MEM>, OpSize32, Requires<[In64BitMode]>;
1037 } // mayLoad, SchedRW
1038 let mayStore = 1, SchedRW = [WriteStore] in {
1039 def PUSH64r : I<0x50, AddRegFrm, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1040 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1041 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1042 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1043 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
1044 IIC_PUSH_MEM>, OpSize32, Requires<[In64BitMode]>;
1045 } // mayStore, SchedRW
1048 let Defs = [RSP], Uses = [RSP], hasSideEffects = 0, mayStore = 1,
1049 SchedRW = [WriteStore] in {
1050 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
1051 "push{q}\t$imm", [], IIC_PUSH_IMM>, Requires<[In64BitMode]>;
1052 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1053 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1054 Requires<[In64BitMode]>;
1055 def PUSH64i32 : Ii32S<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
1056 "push{q}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1057 Requires<[In64BitMode]>;
1060 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, hasSideEffects=0 in
1061 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
1062 OpSize32, Requires<[In64BitMode]>, Sched<[WriteLoad]>;
1063 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, hasSideEffects=0 in
1064 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
1065 OpSize32, Requires<[In64BitMode]>, Sched<[WriteStore]>;
1067 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
1068 mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteLoad] in {
1069 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popal", [], IIC_POP_A>,
1070 OpSize32, Requires<[Not64BitMode]>;
1071 def POPA16 : I<0x61, RawFrm, (outs), (ins), "popaw", [], IIC_POP_A>,
1072 OpSize16, Requires<[Not64BitMode]>;
1074 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
1075 mayStore = 1, hasSideEffects = 0, SchedRW = [WriteStore] in {
1076 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pushal", [], IIC_PUSH_A>,
1077 OpSize32, Requires<[Not64BitMode]>;
1078 def PUSHA16 : I<0x60, RawFrm, (outs), (ins), "pushaw", [], IIC_PUSH_A>,
1079 OpSize16, Requires<[Not64BitMode]>;
1082 let Constraints = "$src = $dst", SchedRW = [WriteALU] in {
1083 // GR32 = bswap GR32
1084 def BSWAP32r : I<0xC8, AddRegFrm,
1085 (outs GR32:$dst), (ins GR32:$src),
1087 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, OpSize32, TB;
1089 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
1091 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
1092 } // Constraints = "$src = $dst", SchedRW
1094 // Bit scan instructions.
1095 let Defs = [EFLAGS] in {
1096 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1097 "bsf{w}\t{$src, $dst|$dst, $src}",
1098 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
1099 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1100 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1101 "bsf{w}\t{$src, $dst|$dst, $src}",
1102 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
1103 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1104 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1105 "bsf{l}\t{$src, $dst|$dst, $src}",
1106 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))],
1107 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1108 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1109 "bsf{l}\t{$src, $dst|$dst, $src}",
1110 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
1111 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1112 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1113 "bsf{q}\t{$src, $dst|$dst, $src}",
1114 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
1115 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1116 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1117 "bsf{q}\t{$src, $dst|$dst, $src}",
1118 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
1119 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1121 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1122 "bsr{w}\t{$src, $dst|$dst, $src}",
1123 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))],
1124 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1125 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1126 "bsr{w}\t{$src, $dst|$dst, $src}",
1127 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
1128 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1129 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1130 "bsr{l}\t{$src, $dst|$dst, $src}",
1131 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))],
1132 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1133 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1134 "bsr{l}\t{$src, $dst|$dst, $src}",
1135 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
1136 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1137 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1138 "bsr{q}\t{$src, $dst|$dst, $src}",
1139 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))],
1140 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1141 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1142 "bsr{q}\t{$src, $dst|$dst, $src}",
1143 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
1144 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1145 } // Defs = [EFLAGS]
1147 let SchedRW = [WriteMicrocoded] in {
1148 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1149 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
1150 def MOVSB : I<0xA4, RawFrmDstSrc, (outs dstidx8:$dst), (ins srcidx8:$src),
1151 "movsb\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1152 def MOVSW : I<0xA5, RawFrmDstSrc, (outs dstidx16:$dst), (ins srcidx16:$src),
1153 "movsw\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize16;
1154 def MOVSL : I<0xA5, RawFrmDstSrc, (outs dstidx32:$dst), (ins srcidx32:$src),
1155 "movs{l|d}\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize32;
1156 def MOVSQ : RI<0xA5, RawFrmDstSrc, (outs dstidx64:$dst), (ins srcidx64:$src),
1157 "movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1160 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1161 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
1162 def STOSB : I<0xAA, RawFrmDst, (outs dstidx8:$dst), (ins),
1163 "stosb\t{%al, $dst|$dst, al}", [], IIC_STOS>;
1164 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
1165 def STOSW : I<0xAB, RawFrmDst, (outs dstidx16:$dst), (ins),
1166 "stosw\t{%ax, $dst|$dst, ax}", [], IIC_STOS>, OpSize16;
1167 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
1168 def STOSL : I<0xAB, RawFrmDst, (outs dstidx32:$dst), (ins),
1169 "stos{l|d}\t{%eax, $dst|$dst, eax}", [], IIC_STOS>, OpSize32;
1170 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
1171 def STOSQ : RI<0xAB, RawFrmDst, (outs dstidx64:$dst), (ins),
1172 "stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>;
1174 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1175 let Defs = [EDI,EFLAGS], Uses = [AL,EDI,EFLAGS] in
1176 def SCASB : I<0xAE, RawFrmDst, (outs), (ins dstidx8:$dst),
1177 "scasb\t{$dst, %al|al, $dst}", [], IIC_SCAS>;
1178 let Defs = [EDI,EFLAGS], Uses = [AX,EDI,EFLAGS] in
1179 def SCASW : I<0xAF, RawFrmDst, (outs), (ins dstidx16:$dst),
1180 "scasw\t{$dst, %ax|ax, $dst}", [], IIC_SCAS>, OpSize16;
1181 let Defs = [EDI,EFLAGS], Uses = [EAX,EDI,EFLAGS] in
1182 def SCASL : I<0xAF, RawFrmDst, (outs), (ins dstidx32:$dst),
1183 "scas{l|d}\t{$dst, %eax|eax, $dst}", [], IIC_SCAS>, OpSize32;
1184 let Defs = [EDI,EFLAGS], Uses = [RAX,EDI,EFLAGS] in
1185 def SCASQ : RI<0xAF, RawFrmDst, (outs), (ins dstidx64:$dst),
1186 "scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>;
1188 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1189 let Defs = [EDI,ESI,EFLAGS], Uses = [EDI,ESI,EFLAGS] in {
1190 def CMPSB : I<0xA6, RawFrmDstSrc, (outs), (ins dstidx8:$dst, srcidx8:$src),
1191 "cmpsb\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1192 def CMPSW : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
1193 "cmpsw\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize16;
1194 def CMPSL : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
1195 "cmps{l|d}\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize32;
1196 def CMPSQ : RI<0xA7, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
1197 "cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1201 //===----------------------------------------------------------------------===//
1202 // Move Instructions.
1204 let SchedRW = [WriteMove] in {
1205 let hasSideEffects = 0 in {
1206 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
1207 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1208 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1209 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1210 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1211 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1212 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1213 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1216 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
1217 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
1218 "mov{b}\t{$src, $dst|$dst, $src}",
1219 [(set GR8:$dst, imm:$src)], IIC_MOV>;
1220 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
1221 "mov{w}\t{$src, $dst|$dst, $src}",
1222 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize16;
1223 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
1224 "mov{l}\t{$src, $dst|$dst, $src}",
1225 [(set GR32:$dst, imm:$src)], IIC_MOV>, OpSize32;
1226 def MOV64ri32 : RIi32S<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
1227 "mov{q}\t{$src, $dst|$dst, $src}",
1228 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
1230 let isReMaterializable = 1 in {
1231 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
1232 "movabs{q}\t{$src, $dst|$dst, $src}",
1233 [(set GR64:$dst, imm:$src)], IIC_MOV>;
1236 // Longer forms that use a ModR/M byte. Needed for disassembler
1237 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0 in {
1238 def MOV8ri_alt : Ii8 <0xC6, MRM0r, (outs GR8 :$dst), (ins i8imm :$src),
1239 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1240 def MOV16ri_alt : Ii16<0xC7, MRM0r, (outs GR16:$dst), (ins i16imm:$src),
1241 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1242 def MOV32ri_alt : Ii32<0xC7, MRM0r, (outs GR32:$dst), (ins i32imm:$src),
1243 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1247 let SchedRW = [WriteStore] in {
1248 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
1249 "mov{b}\t{$src, $dst|$dst, $src}",
1250 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1251 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
1252 "mov{w}\t{$src, $dst|$dst, $src}",
1253 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize16;
1254 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
1255 "mov{l}\t{$src, $dst|$dst, $src}",
1256 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize32;
1257 def MOV64mi32 : RIi32S<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
1258 "mov{q}\t{$src, $dst|$dst, $src}",
1259 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
1262 let hasSideEffects = 0 in {
1264 /// Memory offset versions of moves. The immediate is an address mode sized
1265 /// offset from the segment base.
1266 let SchedRW = [WriteALU] in {
1267 let mayLoad = 1 in {
1269 def MOV8ao32 : Ii32<0xA0, RawFrmMemOffs, (outs), (ins offset32_8:$src),
1270 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1273 def MOV16ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_16:$src),
1274 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1277 def MOV32ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_32:$src),
1278 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1281 def MOV64ao32 : RIi32<0xA1, RawFrmMemOffs, (outs), (ins offset32_64:$src),
1282 "mov{q}\t{$src, %rax|rax, $src}", [], IIC_MOV_MEM>,
1286 def MOV8ao16 : Ii16<0xA0, RawFrmMemOffs, (outs), (ins offset16_8:$src),
1287 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>, AdSize16;
1289 def MOV16ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_16:$src),
1290 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1293 def MOV32ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_32:$src),
1294 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1297 let mayStore = 1 in {
1299 def MOV8o32a : Ii32<0xA2, RawFrmMemOffs, (outs offset32_8:$dst), (ins),
1300 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize32;
1302 def MOV16o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_16:$dst), (ins),
1303 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1306 def MOV32o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_32:$dst), (ins),
1307 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1310 def MOV64o32a : RIi32<0xA3, RawFrmMemOffs, (outs offset32_64:$dst), (ins),
1311 "mov{q}\t{%rax, $dst|$dst, rax}", [], IIC_MOV_MEM>,
1315 def MOV8o16a : Ii16<0xA2, RawFrmMemOffs, (outs offset16_8:$dst), (ins),
1316 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize16;
1318 def MOV16o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_16:$dst), (ins),
1319 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1322 def MOV32o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_32:$dst), (ins),
1323 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1328 // These forms all have full 64-bit absolute addresses in their instructions
1329 // and use the movabs mnemonic to indicate this specific form.
1330 let mayLoad = 1 in {
1332 def MOV8ao64 : RIi64_NOREX<0xA0, RawFrmMemOffs, (outs), (ins offset64_8:$src),
1333 "movabs{b}\t{$src, %al|al, $src}", []>, AdSize64;
1335 def MOV16ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_16:$src),
1336 "movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize16, AdSize64;
1338 def MOV32ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_32:$src),
1339 "movabs{l}\t{$src, %eax|eax, $src}", []>, OpSize32,
1342 def MOV64ao64 : RIi64<0xA1, RawFrmMemOffs, (outs), (ins offset64_64:$src),
1343 "movabs{q}\t{$src, %rax|rax, $src}", []>, AdSize64;
1346 let mayStore = 1 in {
1348 def MOV8o64a : RIi64_NOREX<0xA2, RawFrmMemOffs, (outs offset64_8:$dst), (ins),
1349 "movabs{b}\t{%al, $dst|$dst, al}", []>, AdSize64;
1351 def MOV16o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_16:$dst), (ins),
1352 "movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize16, AdSize64;
1354 def MOV32o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_32:$dst), (ins),
1355 "movabs{l}\t{%eax, $dst|$dst, eax}", []>, OpSize32,
1358 def MOV64o64a : RIi64<0xA3, RawFrmMemOffs, (outs offset64_64:$dst), (ins),
1359 "movabs{q}\t{%rax, $dst|$dst, rax}", []>, AdSize64;
1361 } // hasSideEffects = 0
1363 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0,
1364 SchedRW = [WriteMove] in {
1365 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1366 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1367 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1368 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1369 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1370 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1371 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1372 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1375 let canFoldAsLoad = 1, isReMaterializable = 1, SchedRW = [WriteLoad] in {
1376 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1377 "mov{b}\t{$src, $dst|$dst, $src}",
1378 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1379 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1380 "mov{w}\t{$src, $dst|$dst, $src}",
1381 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize16;
1382 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1383 "mov{l}\t{$src, $dst|$dst, $src}",
1384 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>, OpSize32;
1385 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1386 "mov{q}\t{$src, $dst|$dst, $src}",
1387 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1390 let SchedRW = [WriteStore] in {
1391 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1392 "mov{b}\t{$src, $dst|$dst, $src}",
1393 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1394 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1395 "mov{w}\t{$src, $dst|$dst, $src}",
1396 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize16;
1397 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1398 "mov{l}\t{$src, $dst|$dst, $src}",
1399 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>, OpSize32;
1400 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1401 "mov{q}\t{$src, $dst|$dst, $src}",
1402 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1405 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1406 // that they can be used for copying and storing h registers, which can't be
1407 // encoded when a REX prefix is present.
1408 let isCodeGenOnly = 1 in {
1409 let hasSideEffects = 0 in
1410 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1411 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1412 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>,
1414 let mayStore = 1, hasSideEffects = 0 in
1415 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1416 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1417 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1418 IIC_MOV_MEM>, Sched<[WriteStore]>;
1419 let mayLoad = 1, hasSideEffects = 0,
1420 canFoldAsLoad = 1, isReMaterializable = 1 in
1421 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1422 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1423 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1424 IIC_MOV_MEM>, Sched<[WriteLoad]>;
1428 // Condition code ops, incl. set if equal/not equal/...
1429 let SchedRW = [WriteALU] in {
1430 let Defs = [EFLAGS], Uses = [AH] in
1431 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1432 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1433 let Defs = [AH], Uses = [EFLAGS], hasSideEffects = 0 in
1434 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1435 IIC_AHF>; // AH = flags
1438 //===----------------------------------------------------------------------===//
1439 // Bit tests instructions: BT, BTS, BTR, BTC.
1441 let Defs = [EFLAGS] in {
1442 let SchedRW = [WriteALU] in {
1443 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1444 "bt{w}\t{$src2, $src1|$src1, $src2}",
1445 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1447 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1448 "bt{l}\t{$src2, $src1|$src1, $src2}",
1449 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>,
1451 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1452 "bt{q}\t{$src2, $src1|$src1, $src2}",
1453 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1456 // Unlike with the register+register form, the memory+register form of the
1457 // bt instruction does not ignore the high bits of the index. From ISel's
1458 // perspective, this is pretty bizarre. Make these instructions disassembly
1461 let mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteALULd] in {
1462 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1463 "bt{w}\t{$src2, $src1|$src1, $src2}",
1464 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1465 // (implicit EFLAGS)]
1467 >, OpSize16, TB, Requires<[FastBTMem]>;
1468 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1469 "bt{l}\t{$src2, $src1|$src1, $src2}",
1470 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1471 // (implicit EFLAGS)]
1473 >, OpSize32, TB, Requires<[FastBTMem]>;
1474 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1475 "bt{q}\t{$src2, $src1|$src1, $src2}",
1476 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1477 // (implicit EFLAGS)]
1482 let SchedRW = [WriteALU] in {
1483 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1484 "bt{w}\t{$src2, $src1|$src1, $src2}",
1485 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1486 IIC_BT_RI>, OpSize16, TB;
1487 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1488 "bt{l}\t{$src2, $src1|$src1, $src2}",
1489 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1490 IIC_BT_RI>, OpSize32, TB;
1491 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1492 "bt{q}\t{$src2, $src1|$src1, $src2}",
1493 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1497 // Note that these instructions don't need FastBTMem because that
1498 // only applies when the other operand is in a register. When it's
1499 // an immediate, bt is still fast.
1500 let SchedRW = [WriteALU] in {
1501 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1502 "bt{w}\t{$src2, $src1|$src1, $src2}",
1503 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1504 ], IIC_BT_MI>, OpSize16, TB;
1505 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1506 "bt{l}\t{$src2, $src1|$src1, $src2}",
1507 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1508 ], IIC_BT_MI>, OpSize32, TB;
1509 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1510 "bt{q}\t{$src2, $src1|$src1, $src2}",
1511 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1512 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1515 let hasSideEffects = 0 in {
1516 let SchedRW = [WriteALU] in {
1517 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1518 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1520 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1521 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1523 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1524 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1527 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1528 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1529 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1531 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1532 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1534 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1535 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1538 let SchedRW = [WriteALU] in {
1539 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1540 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1542 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1543 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1545 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1546 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1549 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1550 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1551 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1553 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1554 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1556 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1557 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1560 let SchedRW = [WriteALU] in {
1561 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1562 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1564 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1565 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1567 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1568 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1571 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1572 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1573 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1575 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1576 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1578 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1579 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1582 let SchedRW = [WriteALU] in {
1583 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1584 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1586 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1587 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1589 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1590 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1593 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1594 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1595 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1597 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1598 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1600 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1601 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1604 let SchedRW = [WriteALU] in {
1605 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1606 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1608 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1609 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1611 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1612 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1615 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1616 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1617 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1619 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1620 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1622 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1623 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1626 let SchedRW = [WriteALU] in {
1627 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1628 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1630 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1631 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1633 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1634 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1637 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1638 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1639 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1641 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1642 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1644 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1645 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1647 } // hasSideEffects = 0
1648 } // Defs = [EFLAGS]
1651 //===----------------------------------------------------------------------===//
1655 // Atomic swap. These are just normal xchg instructions. But since a memory
1656 // operand is referenced, the atomicity is ensured.
1657 multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag,
1658 InstrItinClass itin> {
1659 let Constraints = "$val = $dst", SchedRW = [WriteALULd, WriteRMW] in {
1660 def NAME#8rm : I<opc8, MRMSrcMem, (outs GR8:$dst),
1661 (ins GR8:$val, i8mem:$ptr),
1662 !strconcat(mnemonic, "{b}\t{$val, $ptr|$ptr, $val}"),
1665 (!cast<PatFrag>(frag # "_8") addr:$ptr, GR8:$val))],
1667 def NAME#16rm : I<opc, MRMSrcMem, (outs GR16:$dst),
1668 (ins GR16:$val, i16mem:$ptr),
1669 !strconcat(mnemonic, "{w}\t{$val, $ptr|$ptr, $val}"),
1672 (!cast<PatFrag>(frag # "_16") addr:$ptr, GR16:$val))],
1674 def NAME#32rm : I<opc, MRMSrcMem, (outs GR32:$dst),
1675 (ins GR32:$val, i32mem:$ptr),
1676 !strconcat(mnemonic, "{l}\t{$val, $ptr|$ptr, $val}"),
1679 (!cast<PatFrag>(frag # "_32") addr:$ptr, GR32:$val))],
1681 def NAME#64rm : RI<opc, MRMSrcMem, (outs GR64:$dst),
1682 (ins GR64:$val, i64mem:$ptr),
1683 !strconcat(mnemonic, "{q}\t{$val, $ptr|$ptr, $val}"),
1686 (!cast<PatFrag>(frag # "_64") addr:$ptr, GR64:$val))],
1691 defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap", IIC_XCHG_MEM>;
1693 // Swap between registers.
1694 let SchedRW = [WriteALU] in {
1695 let Constraints = "$val = $dst" in {
1696 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1697 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1698 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1699 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1701 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1702 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1704 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1705 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1708 // Swap between EAX and other registers.
1709 let Uses = [AX], Defs = [AX] in
1710 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1711 "xchg{w}\t{$src, %ax|ax, $src}", [], IIC_XCHG_REG>, OpSize16;
1712 let Uses = [EAX], Defs = [EAX] in
1713 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1714 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1715 OpSize32, Requires<[Not64BitMode]>;
1716 let Uses = [EAX], Defs = [EAX] in
1717 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1718 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1719 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1720 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1721 OpSize32, Requires<[In64BitMode]>;
1722 let Uses = [RAX], Defs = [RAX] in
1723 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1724 "xchg{q}\t{$src, %rax|rax, $src}", [], IIC_XCHG_REG>;
1727 let SchedRW = [WriteALU] in {
1728 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1729 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1730 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1731 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1733 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1734 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1736 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1737 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1740 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1741 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1742 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1743 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1744 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1746 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1747 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1749 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1750 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1754 let SchedRW = [WriteALU] in {
1755 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1756 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1757 IIC_CMPXCHG_REG8>, TB;
1758 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1759 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1760 IIC_CMPXCHG_REG>, TB, OpSize16;
1761 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1762 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1763 IIC_CMPXCHG_REG>, TB, OpSize32;
1764 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1765 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1766 IIC_CMPXCHG_REG>, TB;
1769 let SchedRW = [WriteALULd, WriteRMW] in {
1770 let mayLoad = 1, mayStore = 1 in {
1771 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1772 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1773 IIC_CMPXCHG_MEM8>, TB;
1774 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1775 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1776 IIC_CMPXCHG_MEM>, TB, OpSize16;
1777 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1778 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1779 IIC_CMPXCHG_MEM>, TB, OpSize32;
1780 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1781 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1782 IIC_CMPXCHG_MEM>, TB;
1785 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1786 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1787 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1789 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1790 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1791 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1792 TB, Requires<[HasCmpxchg16b]>;
1796 // Lock instruction prefix
1797 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1799 // Rex64 instruction prefix
1800 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>,
1801 Requires<[In64BitMode]>;
1803 // Data16 instruction prefix
1804 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1806 // Repeat string operation instruction prefixes
1807 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1808 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1809 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1810 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1811 // Repeat while not equal (used with CMPS and SCAS)
1812 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1816 // String manipulation instructions
1817 let SchedRW = [WriteMicrocoded] in {
1818 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1819 let Defs = [AL,ESI], Uses = [ESI,EFLAGS] in
1820 def LODSB : I<0xAC, RawFrmSrc, (outs), (ins srcidx8:$src),
1821 "lodsb\t{$src, %al|al, $src}", [], IIC_LODS>;
1822 let Defs = [AX,ESI], Uses = [ESI,EFLAGS] in
1823 def LODSW : I<0xAD, RawFrmSrc, (outs), (ins srcidx16:$src),
1824 "lodsw\t{$src, %ax|ax, $src}", [], IIC_LODS>, OpSize16;
1825 let Defs = [EAX,ESI], Uses = [ESI,EFLAGS] in
1826 def LODSL : I<0xAD, RawFrmSrc, (outs), (ins srcidx32:$src),
1827 "lods{l|d}\t{$src, %eax|eax, $src}", [], IIC_LODS>, OpSize32;
1828 let Defs = [RAX,ESI], Uses = [ESI,EFLAGS] in
1829 def LODSQ : RI<0xAD, RawFrmSrc, (outs), (ins srcidx64:$src),
1830 "lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>;
1833 let SchedRW = [WriteSystem] in {
1834 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1835 let Defs = [ESI], Uses = [DX,ESI,EFLAGS] in {
1836 def OUTSB : I<0x6E, RawFrmSrc, (outs), (ins srcidx8:$src),
1837 "outsb\t{$src, %dx|dx, $src}", [], IIC_OUTS>;
1838 def OUTSW : I<0x6F, RawFrmSrc, (outs), (ins srcidx16:$src),
1839 "outsw\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize16;
1840 def OUTSL : I<0x6F, RawFrmSrc, (outs), (ins srcidx32:$src),
1841 "outs{l|d}\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize32;
1844 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1845 let Defs = [EDI], Uses = [DX,EDI,EFLAGS] in {
1846 def INSB : I<0x6C, RawFrmDst, (outs dstidx8:$dst), (ins),
1847 "insb\t{%dx, $dst|$dst, dx}", [], IIC_INS>;
1848 def INSW : I<0x6D, RawFrmDst, (outs dstidx16:$dst), (ins),
1849 "insw\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize16;
1850 def INSL : I<0x6D, RawFrmDst, (outs dstidx32:$dst), (ins),
1851 "ins{l|d}\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize32;
1855 // Flag instructions
1856 let SchedRW = [WriteALU] in {
1857 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1858 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1859 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1860 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1861 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1862 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1863 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1865 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1868 // Table lookup instructions
1869 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>,
1872 let SchedRW = [WriteMicrocoded] in {
1873 // ASCII Adjust After Addition
1874 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1875 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1876 Requires<[Not64BitMode]>;
1878 // ASCII Adjust AX Before Division
1879 // sets AL, AH and EFLAGS and uses AL and AH
1880 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1881 "aad\t$src", [], IIC_AAD>, Requires<[Not64BitMode]>;
1883 // ASCII Adjust AX After Multiply
1884 // sets AL, AH and EFLAGS and uses AL
1885 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1886 "aam\t$src", [], IIC_AAM>, Requires<[Not64BitMode]>;
1888 // ASCII Adjust AL After Subtraction - sets
1889 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1890 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1891 Requires<[Not64BitMode]>;
1893 // Decimal Adjust AL after Addition
1894 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1895 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1896 Requires<[Not64BitMode]>;
1898 // Decimal Adjust AL after Subtraction
1899 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1900 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1901 Requires<[Not64BitMode]>;
1904 let SchedRW = [WriteSystem] in {
1905 // Check Array Index Against Bounds
1906 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1907 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize16,
1908 Requires<[Not64BitMode]>;
1909 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1910 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize32,
1911 Requires<[Not64BitMode]>;
1913 // Adjust RPL Field of Segment Selector
1914 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1915 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1916 Requires<[Not64BitMode]>;
1917 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1918 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1919 Requires<[Not64BitMode]>;
1922 //===----------------------------------------------------------------------===//
1923 // MOVBE Instructions
1925 let Predicates = [HasMOVBE] in {
1926 let SchedRW = [WriteALULd] in {
1927 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1928 "movbe{w}\t{$src, $dst|$dst, $src}",
1929 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1931 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1932 "movbe{l}\t{$src, $dst|$dst, $src}",
1933 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1935 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1936 "movbe{q}\t{$src, $dst|$dst, $src}",
1937 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1940 let SchedRW = [WriteStore] in {
1941 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1942 "movbe{w}\t{$src, $dst|$dst, $src}",
1943 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1945 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1946 "movbe{l}\t{$src, $dst|$dst, $src}",
1947 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1949 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1950 "movbe{q}\t{$src, $dst|$dst, $src}",
1951 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1956 //===----------------------------------------------------------------------===//
1957 // RDRAND Instruction
1959 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1960 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1962 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, TB;
1963 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1965 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, TB;
1966 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1968 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1971 //===----------------------------------------------------------------------===//
1972 // RDSEED Instruction
1974 let Predicates = [HasRDSEED], Defs = [EFLAGS] in {
1975 def RDSEED16r : I<0xC7, MRM7r, (outs GR16:$dst), (ins),
1977 [(set GR16:$dst, EFLAGS, (X86rdseed))]>, OpSize16, TB;
1978 def RDSEED32r : I<0xC7, MRM7r, (outs GR32:$dst), (ins),
1980 [(set GR32:$dst, EFLAGS, (X86rdseed))]>, OpSize32, TB;
1981 def RDSEED64r : RI<0xC7, MRM7r, (outs GR64:$dst), (ins),
1983 [(set GR64:$dst, EFLAGS, (X86rdseed))]>, TB;
1986 //===----------------------------------------------------------------------===//
1987 // LZCNT Instruction
1989 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
1990 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1991 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1992 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
1994 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1995 "lzcnt{w}\t{$src, $dst|$dst, $src}",
1996 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
1997 (implicit EFLAGS)]>, XS, OpSize16;
1999 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2000 "lzcnt{l}\t{$src, $dst|$dst, $src}",
2001 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS,
2003 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2004 "lzcnt{l}\t{$src, $dst|$dst, $src}",
2005 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
2006 (implicit EFLAGS)]>, XS, OpSize32;
2008 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2009 "lzcnt{q}\t{$src, $dst|$dst, $src}",
2010 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
2012 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2013 "lzcnt{q}\t{$src, $dst|$dst, $src}",
2014 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
2015 (implicit EFLAGS)]>, XS;
2018 let Predicates = [HasLZCNT] in {
2019 def : Pat<(X86cmov (ctlz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2020 (X86cmp GR16:$src, (i16 0))),
2021 (LZCNT16rr GR16:$src)>;
2022 def : Pat<(X86cmov (ctlz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2023 (X86cmp GR32:$src, (i32 0))),
2024 (LZCNT32rr GR32:$src)>;
2025 def : Pat<(X86cmov (ctlz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2026 (X86cmp GR64:$src, (i64 0))),
2027 (LZCNT64rr GR64:$src)>;
2028 def : Pat<(X86cmov (i16 16), (ctlz GR16:$src), (X86_COND_E_OR_NE),
2029 (X86cmp GR16:$src, (i16 0))),
2030 (LZCNT16rr GR16:$src)>;
2031 def : Pat<(X86cmov (i32 32), (ctlz GR32:$src), (X86_COND_E_OR_NE),
2032 (X86cmp GR32:$src, (i32 0))),
2033 (LZCNT32rr GR32:$src)>;
2034 def : Pat<(X86cmov (i64 64), (ctlz GR64:$src), (X86_COND_E_OR_NE),
2035 (X86cmp GR64:$src, (i64 0))),
2036 (LZCNT64rr GR64:$src)>;
2038 def : Pat<(X86cmov (ctlz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2039 (X86cmp (loadi16 addr:$src), (i16 0))),
2040 (LZCNT16rm addr:$src)>;
2041 def : Pat<(X86cmov (ctlz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2042 (X86cmp (loadi32 addr:$src), (i32 0))),
2043 (LZCNT32rm addr:$src)>;
2044 def : Pat<(X86cmov (ctlz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2045 (X86cmp (loadi64 addr:$src), (i64 0))),
2046 (LZCNT64rm addr:$src)>;
2047 def : Pat<(X86cmov (i16 16), (ctlz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2048 (X86cmp (loadi16 addr:$src), (i16 0))),
2049 (LZCNT16rm addr:$src)>;
2050 def : Pat<(X86cmov (i32 32), (ctlz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2051 (X86cmp (loadi32 addr:$src), (i32 0))),
2052 (LZCNT32rm addr:$src)>;
2053 def : Pat<(X86cmov (i64 64), (ctlz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2054 (X86cmp (loadi64 addr:$src), (i64 0))),
2055 (LZCNT64rm addr:$src)>;
2058 //===----------------------------------------------------------------------===//
2061 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2062 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
2063 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2064 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
2066 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
2067 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2068 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
2069 (implicit EFLAGS)]>, XS, OpSize16;
2071 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2072 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2073 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS,
2075 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2076 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2077 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
2078 (implicit EFLAGS)]>, XS, OpSize32;
2080 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2081 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2082 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
2084 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2085 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2086 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
2087 (implicit EFLAGS)]>, XS;
2090 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
2091 RegisterClass RC, X86MemOperand x86memop> {
2092 let hasSideEffects = 0 in {
2093 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
2094 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2097 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
2098 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2103 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2104 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem>;
2105 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem>, VEX_W;
2106 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem>;
2107 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem>, VEX_W;
2108 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem>;
2109 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem>, VEX_W;
2112 //===----------------------------------------------------------------------===//
2113 // Pattern fragments to auto generate BMI instructions.
2114 //===----------------------------------------------------------------------===//
2116 let Predicates = [HasBMI] in {
2117 // FIXME: patterns for the load versions are not implemented
2118 def : Pat<(and GR32:$src, (add GR32:$src, -1)),
2119 (BLSR32rr GR32:$src)>;
2120 def : Pat<(and GR64:$src, (add GR64:$src, -1)),
2121 (BLSR64rr GR64:$src)>;
2123 def : Pat<(xor GR32:$src, (add GR32:$src, -1)),
2124 (BLSMSK32rr GR32:$src)>;
2125 def : Pat<(xor GR64:$src, (add GR64:$src, -1)),
2126 (BLSMSK64rr GR64:$src)>;
2128 def : Pat<(and GR32:$src, (ineg GR32:$src)),
2129 (BLSI32rr GR32:$src)>;
2130 def : Pat<(and GR64:$src, (ineg GR64:$src)),
2131 (BLSI64rr GR64:$src)>;
2134 let Predicates = [HasBMI] in {
2135 def : Pat<(X86cmov (cttz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2136 (X86cmp GR16:$src, (i16 0))),
2137 (TZCNT16rr GR16:$src)>;
2138 def : Pat<(X86cmov (cttz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2139 (X86cmp GR32:$src, (i32 0))),
2140 (TZCNT32rr GR32:$src)>;
2141 def : Pat<(X86cmov (cttz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2142 (X86cmp GR64:$src, (i64 0))),
2143 (TZCNT64rr GR64:$src)>;
2144 def : Pat<(X86cmov (i16 16), (cttz GR16:$src), (X86_COND_E_OR_NE),
2145 (X86cmp GR16:$src, (i16 0))),
2146 (TZCNT16rr GR16:$src)>;
2147 def : Pat<(X86cmov (i32 32), (cttz GR32:$src), (X86_COND_E_OR_NE),
2148 (X86cmp GR32:$src, (i32 0))),
2149 (TZCNT32rr GR32:$src)>;
2150 def : Pat<(X86cmov (i64 64), (cttz GR64:$src), (X86_COND_E_OR_NE),
2151 (X86cmp GR64:$src, (i64 0))),
2152 (TZCNT64rr GR64:$src)>;
2154 def : Pat<(X86cmov (cttz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2155 (X86cmp (loadi16 addr:$src), (i16 0))),
2156 (TZCNT16rm addr:$src)>;
2157 def : Pat<(X86cmov (cttz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2158 (X86cmp (loadi32 addr:$src), (i32 0))),
2159 (TZCNT32rm addr:$src)>;
2160 def : Pat<(X86cmov (cttz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2161 (X86cmp (loadi64 addr:$src), (i64 0))),
2162 (TZCNT64rm addr:$src)>;
2163 def : Pat<(X86cmov (i16 16), (cttz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2164 (X86cmp (loadi16 addr:$src), (i16 0))),
2165 (TZCNT16rm addr:$src)>;
2166 def : Pat<(X86cmov (i32 32), (cttz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2167 (X86cmp (loadi32 addr:$src), (i32 0))),
2168 (TZCNT32rm addr:$src)>;
2169 def : Pat<(X86cmov (i64 64), (cttz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2170 (X86cmp (loadi64 addr:$src), (i64 0))),
2171 (TZCNT64rm addr:$src)>;
2175 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
2176 X86MemOperand x86memop, Intrinsic Int,
2178 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2179 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2180 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
2182 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
2183 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2184 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
2185 (implicit EFLAGS)]>, T8PS, VEX_4VOp3;
2188 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2189 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
2190 int_x86_bmi_bextr_32, loadi32>;
2191 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
2192 int_x86_bmi_bextr_64, loadi64>, VEX_W;
2195 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
2196 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
2197 int_x86_bmi_bzhi_32, loadi32>;
2198 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
2199 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
2203 def CountTrailingOnes : SDNodeXForm<imm, [{
2204 // Count the trailing ones in the immediate.
2205 return getI8Imm(CountTrailingOnes_64(N->getZExtValue()));
2208 def BZHIMask : ImmLeaf<i64, [{
2209 return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
2212 let Predicates = [HasBMI2] in {
2213 def : Pat<(and GR64:$src, BZHIMask:$mask),
2214 (BZHI64rr GR64:$src,
2215 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
2216 (MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
2218 def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
2219 (BZHI32rr GR32:$src,
2220 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2222 def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
2223 (BZHI32rm addr:$src,
2224 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2226 def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
2227 (BZHI64rr GR64:$src,
2228 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2230 def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
2231 (BZHI64rm addr:$src,
2232 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2235 let Predicates = [HasBMI] in {
2236 def : Pat<(X86bextr GR32:$src1, GR32:$src2),
2237 (BEXTR32rr GR32:$src1, GR32:$src2)>;
2238 def : Pat<(X86bextr (loadi32 addr:$src1), GR32:$src2),
2239 (BEXTR32rm addr:$src1, GR32:$src2)>;
2240 def : Pat<(X86bextr GR64:$src1, GR64:$src2),
2241 (BEXTR64rr GR64:$src1, GR64:$src2)>;
2242 def : Pat<(X86bextr (loadi64 addr:$src1), GR64:$src2),
2243 (BEXTR64rm addr:$src1, GR64:$src2)>;
2246 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
2247 X86MemOperand x86memop, Intrinsic Int,
2249 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2250 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2251 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
2253 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
2254 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2255 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
2258 let Predicates = [HasBMI2] in {
2259 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
2260 int_x86_bmi_pdep_32, loadi32>, T8XD;
2261 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
2262 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
2263 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
2264 int_x86_bmi_pext_32, loadi32>, T8XS;
2265 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
2266 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
2269 //===----------------------------------------------------------------------===//
2272 let Predicates = [HasTBM], Defs = [EFLAGS] in {
2274 multiclass tbm_ternary_imm_intr<bits<8> opc, RegisterClass RC, string OpcodeStr,
2275 X86MemOperand x86memop, PatFrag ld_frag,
2276 Intrinsic Int, Operand immtype,
2277 SDPatternOperator immoperator> {
2278 def ri : Ii32<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, immtype:$cntl),
2279 !strconcat(OpcodeStr,
2280 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2281 [(set RC:$dst, (Int RC:$src1, immoperator:$cntl))]>,
2283 def mi : Ii32<opc, MRMSrcMem, (outs RC:$dst),
2284 (ins x86memop:$src1, immtype:$cntl),
2285 !strconcat(OpcodeStr,
2286 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2287 [(set RC:$dst, (Int (ld_frag addr:$src1), immoperator:$cntl))]>,
2291 defm BEXTRI32 : tbm_ternary_imm_intr<0x10, GR32, "bextr", i32mem, loadi32,
2292 int_x86_tbm_bextri_u32, i32imm, imm>;
2293 let ImmT = Imm32S in
2294 defm BEXTRI64 : tbm_ternary_imm_intr<0x10, GR64, "bextr", i64mem, loadi64,
2295 int_x86_tbm_bextri_u64, i64i32imm,
2296 i64immSExt32>, VEX_W;
2298 multiclass tbm_binary_rm<bits<8> opc, Format FormReg, Format FormMem,
2299 RegisterClass RC, string OpcodeStr,
2300 X86MemOperand x86memop, PatFrag ld_frag> {
2301 let hasSideEffects = 0 in {
2302 def rr : I<opc, FormReg, (outs RC:$dst), (ins RC:$src),
2303 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2306 def rm : I<opc, FormMem, (outs RC:$dst), (ins x86memop:$src),
2307 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2312 multiclass tbm_binary_intr<bits<8> opc, string OpcodeStr,
2313 Format FormReg, Format FormMem> {
2314 defm NAME#32 : tbm_binary_rm<opc, FormReg, FormMem, GR32, OpcodeStr, i32mem,
2316 defm NAME#64 : tbm_binary_rm<opc, FormReg, FormMem, GR64, OpcodeStr, i64mem,
2320 defm BLCFILL : tbm_binary_intr<0x01, "blcfill", MRM1r, MRM1m>;
2321 defm BLCI : tbm_binary_intr<0x02, "blci", MRM6r, MRM6m>;
2322 defm BLCIC : tbm_binary_intr<0x01, "blcic", MRM5r, MRM5m>;
2323 defm BLCMSK : tbm_binary_intr<0x02, "blcmsk", MRM1r, MRM1m>;
2324 defm BLCS : tbm_binary_intr<0x01, "blcs", MRM3r, MRM3m>;
2325 defm BLSFILL : tbm_binary_intr<0x01, "blsfill", MRM2r, MRM2m>;
2326 defm BLSIC : tbm_binary_intr<0x01, "blsic", MRM6r, MRM6m>;
2327 defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
2328 defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
2331 //===----------------------------------------------------------------------===//
2332 // Pattern fragments to auto generate TBM instructions.
2333 //===----------------------------------------------------------------------===//
2335 let Predicates = [HasTBM] in {
2336 def : Pat<(X86bextr GR32:$src1, (i32 imm:$src2)),
2337 (BEXTRI32ri GR32:$src1, imm:$src2)>;
2338 def : Pat<(X86bextr (loadi32 addr:$src1), (i32 imm:$src2)),
2339 (BEXTRI32mi addr:$src1, imm:$src2)>;
2340 def : Pat<(X86bextr GR64:$src1, i64immSExt32:$src2),
2341 (BEXTRI64ri GR64:$src1, i64immSExt32:$src2)>;
2342 def : Pat<(X86bextr (loadi64 addr:$src1), i64immSExt32:$src2),
2343 (BEXTRI64mi addr:$src1, i64immSExt32:$src2)>;
2345 // FIXME: patterns for the load versions are not implemented
2346 def : Pat<(and GR32:$src, (add GR32:$src, 1)),
2347 (BLCFILL32rr GR32:$src)>;
2348 def : Pat<(and GR64:$src, (add GR64:$src, 1)),
2349 (BLCFILL64rr GR64:$src)>;
2351 def : Pat<(or GR32:$src, (not (add GR32:$src, 1))),
2352 (BLCI32rr GR32:$src)>;
2353 def : Pat<(or GR64:$src, (not (add GR64:$src, 1))),
2354 (BLCI64rr GR64:$src)>;
2356 // Extra patterns because opt can optimize the above patterns to this.
2357 def : Pat<(or GR32:$src, (sub -2, GR32:$src)),
2358 (BLCI32rr GR32:$src)>;
2359 def : Pat<(or GR64:$src, (sub -2, GR64:$src)),
2360 (BLCI64rr GR64:$src)>;
2362 def : Pat<(and (not GR32:$src), (add GR32:$src, 1)),
2363 (BLCIC32rr GR32:$src)>;
2364 def : Pat<(and (not GR64:$src), (add GR64:$src, 1)),
2365 (BLCIC64rr GR64:$src)>;
2367 def : Pat<(xor GR32:$src, (add GR32:$src, 1)),
2368 (BLCMSK32rr GR32:$src)>;
2369 def : Pat<(xor GR64:$src, (add GR64:$src, 1)),
2370 (BLCMSK64rr GR64:$src)>;
2372 def : Pat<(or GR32:$src, (add GR32:$src, 1)),
2373 (BLCS32rr GR32:$src)>;
2374 def : Pat<(or GR64:$src, (add GR64:$src, 1)),
2375 (BLCS64rr GR64:$src)>;
2377 def : Pat<(or GR32:$src, (add GR32:$src, -1)),
2378 (BLSFILL32rr GR32:$src)>;
2379 def : Pat<(or GR64:$src, (add GR64:$src, -1)),
2380 (BLSFILL64rr GR64:$src)>;
2382 def : Pat<(or (not GR32:$src), (add GR32:$src, -1)),
2383 (BLSIC32rr GR32:$src)>;
2384 def : Pat<(or (not GR64:$src), (add GR64:$src, -1)),
2385 (BLSIC64rr GR64:$src)>;
2387 def : Pat<(or (not GR32:$src), (add GR32:$src, 1)),
2388 (T1MSKC32rr GR32:$src)>;
2389 def : Pat<(or (not GR64:$src), (add GR64:$src, 1)),
2390 (T1MSKC64rr GR64:$src)>;
2392 def : Pat<(and (not GR32:$src), (add GR32:$src, -1)),
2393 (TZMSK32rr GR32:$src)>;
2394 def : Pat<(and (not GR64:$src), (add GR64:$src, -1)),
2395 (TZMSK64rr GR64:$src)>;
2398 //===----------------------------------------------------------------------===//
2400 //===----------------------------------------------------------------------===//
2402 include "X86InstrArithmetic.td"
2403 include "X86InstrCMovSetCC.td"
2404 include "X86InstrExtension.td"
2405 include "X86InstrControl.td"
2406 include "X86InstrShiftRotate.td"
2408 // X87 Floating Point Stack.
2409 include "X86InstrFPStack.td"
2411 // SIMD support (SSE, MMX and AVX)
2412 include "X86InstrFragmentsSIMD.td"
2414 // FMA - Fused Multiply-Add support (requires FMA)
2415 include "X86InstrFMA.td"
2418 include "X86InstrXOP.td"
2420 // SSE, MMX and 3DNow! vector support.
2421 include "X86InstrSSE.td"
2422 include "X86InstrAVX512.td"
2423 include "X86InstrMMX.td"
2424 include "X86Instr3DNow.td"
2426 include "X86InstrVMX.td"
2427 include "X86InstrSVM.td"
2429 include "X86InstrTSX.td"
2430 include "X86InstrSGX.td"
2432 // System instructions.
2433 include "X86InstrSystem.td"
2435 // Compiler Pseudo Instructions and Pat Patterns
2436 include "X86InstrCompiler.td"
2438 //===----------------------------------------------------------------------===//
2439 // Assembler Mnemonic Aliases
2440 //===----------------------------------------------------------------------===//
2442 def : MnemonicAlias<"call", "callw", "att">, Requires<[In16BitMode]>;
2443 def : MnemonicAlias<"call", "calll", "att">, Requires<[In32BitMode]>;
2444 def : MnemonicAlias<"call", "callq", "att">, Requires<[In64BitMode]>;
2446 def : MnemonicAlias<"cbw", "cbtw", "att">;
2447 def : MnemonicAlias<"cwde", "cwtl", "att">;
2448 def : MnemonicAlias<"cwd", "cwtd", "att">;
2449 def : MnemonicAlias<"cdq", "cltd", "att">;
2450 def : MnemonicAlias<"cdqe", "cltq", "att">;
2451 def : MnemonicAlias<"cqo", "cqto", "att">;
2453 // In 64-bit mode lret maps to lretl; it is not ambiguous with lretq.
2454 def : MnemonicAlias<"lret", "lretw", "att">, Requires<[In16BitMode]>;
2455 def : MnemonicAlias<"lret", "lretl", "att">, Requires<[Not16BitMode]>;
2457 def : MnemonicAlias<"leavel", "leave", "att">, Requires<[Not64BitMode]>;
2458 def : MnemonicAlias<"leaveq", "leave", "att">, Requires<[In64BitMode]>;
2460 def : MnemonicAlias<"loopz", "loope", "att">;
2461 def : MnemonicAlias<"loopnz", "loopne", "att">;
2463 def : MnemonicAlias<"pop", "popw", "att">, Requires<[In16BitMode]>;
2464 def : MnemonicAlias<"pop", "popl", "att">, Requires<[In32BitMode]>;
2465 def : MnemonicAlias<"pop", "popq", "att">, Requires<[In64BitMode]>;
2466 def : MnemonicAlias<"popf", "popfw", "att">, Requires<[In16BitMode]>;
2467 def : MnemonicAlias<"popf", "popfl", "att">, Requires<[In32BitMode]>;
2468 def : MnemonicAlias<"popf", "popfq", "att">, Requires<[In64BitMode]>;
2469 def : MnemonicAlias<"popfd", "popfl", "att">;
2471 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
2472 // all modes. However: "push (addr)" and "push $42" should default to
2473 // pushl/pushq depending on the current mode. Similar for "pop %bx"
2474 def : MnemonicAlias<"push", "pushw", "att">, Requires<[In16BitMode]>;
2475 def : MnemonicAlias<"push", "pushl", "att">, Requires<[In32BitMode]>;
2476 def : MnemonicAlias<"push", "pushq", "att">, Requires<[In64BitMode]>;
2477 def : MnemonicAlias<"pushf", "pushfw", "att">, Requires<[In16BitMode]>;
2478 def : MnemonicAlias<"pushf", "pushfl", "att">, Requires<[In32BitMode]>;
2479 def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>;
2480 def : MnemonicAlias<"pushfd", "pushfl", "att">;
2482 def : MnemonicAlias<"popad", "popal", "intel">, Requires<[Not64BitMode]>;
2483 def : MnemonicAlias<"pushad", "pushal", "intel">, Requires<[Not64BitMode]>;
2484 def : MnemonicAlias<"popa", "popaw", "intel">, Requires<[In16BitMode]>;
2485 def : MnemonicAlias<"pusha", "pushaw", "intel">, Requires<[In16BitMode]>;
2486 def : MnemonicAlias<"popa", "popal", "intel">, Requires<[In32BitMode]>;
2487 def : MnemonicAlias<"pusha", "pushal", "intel">, Requires<[In32BitMode]>;
2489 def : MnemonicAlias<"popa", "popaw", "att">, Requires<[In16BitMode]>;
2490 def : MnemonicAlias<"pusha", "pushaw", "att">, Requires<[In16BitMode]>;
2491 def : MnemonicAlias<"popa", "popal", "att">, Requires<[In32BitMode]>;
2492 def : MnemonicAlias<"pusha", "pushal", "att">, Requires<[In32BitMode]>;
2494 def : MnemonicAlias<"repe", "rep", "att">;
2495 def : MnemonicAlias<"repz", "rep", "att">;
2496 def : MnemonicAlias<"repnz", "repne", "att">;
2498 def : MnemonicAlias<"ret", "retw", "att">, Requires<[In16BitMode]>;
2499 def : MnemonicAlias<"ret", "retl", "att">, Requires<[In32BitMode]>;
2500 def : MnemonicAlias<"ret", "retq", "att">, Requires<[In64BitMode]>;
2502 def : MnemonicAlias<"salb", "shlb", "att">;
2503 def : MnemonicAlias<"salw", "shlw", "att">;
2504 def : MnemonicAlias<"sall", "shll", "att">;
2505 def : MnemonicAlias<"salq", "shlq", "att">;
2507 def : MnemonicAlias<"smovb", "movsb", "att">;
2508 def : MnemonicAlias<"smovw", "movsw", "att">;
2509 def : MnemonicAlias<"smovl", "movsl", "att">;
2510 def : MnemonicAlias<"smovq", "movsq", "att">;
2512 def : MnemonicAlias<"ud2a", "ud2", "att">;
2513 def : MnemonicAlias<"verrw", "verr", "att">;
2515 // System instruction aliases.
2516 def : MnemonicAlias<"iret", "iretw", "att">, Requires<[In16BitMode]>;
2517 def : MnemonicAlias<"iret", "iretl", "att">, Requires<[Not16BitMode]>;
2518 def : MnemonicAlias<"sysret", "sysretl", "att">;
2519 def : MnemonicAlias<"sysexit", "sysexitl", "att">;
2521 def : MnemonicAlias<"lgdt", "lgdtw", "att">, Requires<[In16BitMode]>;
2522 def : MnemonicAlias<"lgdt", "lgdtl", "att">, Requires<[In32BitMode]>;
2523 def : MnemonicAlias<"lgdt", "lgdtq", "att">, Requires<[In64BitMode]>;
2524 def : MnemonicAlias<"lidt", "lidtw", "att">, Requires<[In16BitMode]>;
2525 def : MnemonicAlias<"lidt", "lidtl", "att">, Requires<[In32BitMode]>;
2526 def : MnemonicAlias<"lidt", "lidtq", "att">, Requires<[In64BitMode]>;
2527 def : MnemonicAlias<"sgdt", "sgdtw", "att">, Requires<[In16BitMode]>;
2528 def : MnemonicAlias<"sgdt", "sgdtl", "att">, Requires<[In32BitMode]>;
2529 def : MnemonicAlias<"sgdt", "sgdtq", "att">, Requires<[In64BitMode]>;
2530 def : MnemonicAlias<"sidt", "sidtw", "att">, Requires<[In16BitMode]>;
2531 def : MnemonicAlias<"sidt", "sidtl", "att">, Requires<[In32BitMode]>;
2532 def : MnemonicAlias<"sidt", "sidtq", "att">, Requires<[In64BitMode]>;
2535 // Floating point stack aliases.
2536 def : MnemonicAlias<"fcmovz", "fcmove", "att">;
2537 def : MnemonicAlias<"fcmova", "fcmovnbe", "att">;
2538 def : MnemonicAlias<"fcmovnae", "fcmovb", "att">;
2539 def : MnemonicAlias<"fcmovna", "fcmovbe", "att">;
2540 def : MnemonicAlias<"fcmovae", "fcmovnb", "att">;
2541 def : MnemonicAlias<"fcomip", "fcompi", "att">;
2542 def : MnemonicAlias<"fildq", "fildll", "att">;
2543 def : MnemonicAlias<"fistpq", "fistpll", "att">;
2544 def : MnemonicAlias<"fisttpq", "fisttpll", "att">;
2545 def : MnemonicAlias<"fldcww", "fldcw", "att">;
2546 def : MnemonicAlias<"fnstcww", "fnstcw", "att">;
2547 def : MnemonicAlias<"fnstsww", "fnstsw", "att">;
2548 def : MnemonicAlias<"fucomip", "fucompi", "att">;
2549 def : MnemonicAlias<"fwait", "wait">;
2552 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond,
2554 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
2555 !strconcat(Prefix, NewCond, Suffix), VariantName>;
2557 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
2558 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
2559 /// example "setz" -> "sete".
2560 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix,
2562 def C : CondCodeAlias<Prefix, Suffix, "c", "b", V>; // setc -> setb
2563 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e", V>; // setz -> sete
2564 def NA : CondCodeAlias<Prefix, Suffix, "na", "be", V>; // setna -> setbe
2565 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae", V>; // setnb -> setae
2566 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae", V>; // setnc -> setae
2567 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le", V>; // setng -> setle
2568 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge", V>; // setnl -> setge
2569 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne", V>; // setnz -> setne
2570 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p", V>; // setpe -> setp
2571 def PO : CondCodeAlias<Prefix, Suffix, "po", "np", V>; // setpo -> setnp
2573 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b", V>; // setnae -> setb
2574 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a", V>; // setnbe -> seta
2575 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l", V>; // setnge -> setl
2576 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g", V>; // setnle -> setg
2579 // Aliases for set<CC>
2580 defm : IntegerCondCodeMnemonicAlias<"set", "">;
2581 // Aliases for j<CC>
2582 defm : IntegerCondCodeMnemonicAlias<"j", "">;
2583 // Aliases for cmov<CC>{w,l,q}
2584 defm : IntegerCondCodeMnemonicAlias<"cmov", "w", "att">;
2585 defm : IntegerCondCodeMnemonicAlias<"cmov", "l", "att">;
2586 defm : IntegerCondCodeMnemonicAlias<"cmov", "q", "att">;
2587 // No size suffix for intel-style asm.
2588 defm : IntegerCondCodeMnemonicAlias<"cmov", "", "intel">;
2591 //===----------------------------------------------------------------------===//
2592 // Assembler Instruction Aliases
2593 //===----------------------------------------------------------------------===//
2595 // aad/aam default to base 10 if no operand is specified.
2596 def : InstAlias<"aad", (AAD8i8 10)>;
2597 def : InstAlias<"aam", (AAM8i8 10)>;
2599 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
2600 // Likewise for btc/btr/bts.
2601 def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
2602 (BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2603 def : InstAlias<"btc {$imm, $mem|$mem, $imm}",
2604 (BTC32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2605 def : InstAlias<"btr {$imm, $mem|$mem, $imm}",
2606 (BTR32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2607 def : InstAlias<"bts {$imm, $mem|$mem, $imm}",
2608 (BTS32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2611 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
2612 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
2613 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
2614 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
2616 // lods aliases. Accept the destination being omitted because it's implicit
2617 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2618 // in the destination.
2619 def : InstAlias<"lodsb $src", (LODSB srcidx8:$src), 0>;
2620 def : InstAlias<"lodsw $src", (LODSW srcidx16:$src), 0>;
2621 def : InstAlias<"lods{l|d} $src", (LODSL srcidx32:$src), 0>;
2622 def : InstAlias<"lodsq $src", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2623 def : InstAlias<"lods {$src, %al|al, $src}", (LODSB srcidx8:$src), 0>;
2624 def : InstAlias<"lods {$src, %ax|ax, $src}", (LODSW srcidx16:$src), 0>;
2625 def : InstAlias<"lods {$src, %eax|eax, $src}", (LODSL srcidx32:$src), 0>;
2626 def : InstAlias<"lods {$src, %rax|rax, $src}", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2628 // stos aliases. Accept the source being omitted because it's implicit in
2629 // the mnemonic, or the mnemonic suffix being omitted because it's implicit
2631 def : InstAlias<"stosb $dst", (STOSB dstidx8:$dst), 0>;
2632 def : InstAlias<"stosw $dst", (STOSW dstidx16:$dst), 0>;
2633 def : InstAlias<"stos{l|d} $dst", (STOSL dstidx32:$dst), 0>;
2634 def : InstAlias<"stosq $dst", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2635 def : InstAlias<"stos {%al, $dst|$dst, al}", (STOSB dstidx8:$dst), 0>;
2636 def : InstAlias<"stos {%ax, $dst|$dst, ax}", (STOSW dstidx16:$dst), 0>;
2637 def : InstAlias<"stos {%eax, $dst|$dst, eax}", (STOSL dstidx32:$dst), 0>;
2638 def : InstAlias<"stos {%rax, $dst|$dst, rax}", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2640 // scas aliases. Accept the destination being omitted because it's implicit
2641 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2642 // in the destination.
2643 def : InstAlias<"scasb $dst", (SCASB dstidx8:$dst), 0>;
2644 def : InstAlias<"scasw $dst", (SCASW dstidx16:$dst), 0>;
2645 def : InstAlias<"scas{l|d} $dst", (SCASL dstidx32:$dst), 0>;
2646 def : InstAlias<"scasq $dst", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2647 def : InstAlias<"scas {$dst, %al|al, $dst}", (SCASB dstidx8:$dst), 0>;
2648 def : InstAlias<"scas {$dst, %ax|ax, $dst}", (SCASW dstidx16:$dst), 0>;
2649 def : InstAlias<"scas {$dst, %eax|eax, $dst}", (SCASL dstidx32:$dst), 0>;
2650 def : InstAlias<"scas {$dst, %rax|rax, $dst}", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2652 // div and idiv aliases for explicit A register.
2653 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8r GR8 :$src)>;
2654 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16r GR16:$src)>;
2655 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32r GR32:$src)>;
2656 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64r GR64:$src)>;
2657 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8m i8mem :$src)>;
2658 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16m i16mem:$src)>;
2659 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32m i32mem:$src)>;
2660 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64m i64mem:$src)>;
2661 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8r GR8 :$src)>;
2662 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16r GR16:$src)>;
2663 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32r GR32:$src)>;
2664 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64r GR64:$src)>;
2665 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8m i8mem :$src)>;
2666 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16m i16mem:$src)>;
2667 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32m i32mem:$src)>;
2668 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64m i64mem:$src)>;
2672 // Various unary fpstack operations default to operating on on ST1.
2673 // For example, "fxch" -> "fxch %st(1)"
2674 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
2675 def : InstAlias<"fsub{|r}p", (SUBR_FPrST0 ST1), 0>;
2676 def : InstAlias<"fsub{r|}p", (SUB_FPrST0 ST1), 0>;
2677 def : InstAlias<"fmulp", (MUL_FPrST0 ST1), 0>;
2678 def : InstAlias<"fdiv{|r}p", (DIVR_FPrST0 ST1), 0>;
2679 def : InstAlias<"fdiv{r|}p", (DIV_FPrST0 ST1), 0>;
2680 def : InstAlias<"fxch", (XCH_F ST1), 0>;
2681 def : InstAlias<"fcom", (COM_FST0r ST1), 0>;
2682 def : InstAlias<"fcomp", (COMP_FST0r ST1), 0>;
2683 def : InstAlias<"fcomi", (COM_FIr ST1), 0>;
2684 def : InstAlias<"fcompi", (COM_FIPr ST1), 0>;
2685 def : InstAlias<"fucom", (UCOM_Fr ST1), 0>;
2686 def : InstAlias<"fucomp", (UCOM_FPr ST1), 0>;
2687 def : InstAlias<"fucomi", (UCOM_FIr ST1), 0>;
2688 def : InstAlias<"fucompi", (UCOM_FIPr ST1), 0>;
2690 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
2691 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
2692 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
2694 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
2695 def : InstAlias<!strconcat(Mnemonic, "\t{$op, %st(0)|st(0), $op}"),
2696 (Inst RST:$op), EmitAlias>;
2697 def : InstAlias<!strconcat(Mnemonic, "\t{%st(0), %st(0)|st(0), st(0)}"),
2698 (Inst ST0), EmitAlias>;
2701 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
2702 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
2703 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
2704 defm : FpUnaryAlias<"fsub{|r}p", SUBR_FPrST0>;
2705 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
2706 defm : FpUnaryAlias<"fsub{r|}p", SUB_FPrST0>;
2707 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
2708 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
2709 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
2710 defm : FpUnaryAlias<"fdiv{|r}p", DIVR_FPrST0>;
2711 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
2712 defm : FpUnaryAlias<"fdiv{r|}p", DIV_FPrST0>;
2713 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
2714 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
2715 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
2716 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
2719 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
2720 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
2721 // solely because gas supports it.
2722 def : InstAlias<"faddp\t{%st(0), $op|$op, st(0)}", (ADD_FPrST0 RST:$op), 0>;
2723 def : InstAlias<"fmulp\t{%st(0), $op|$op, st(0)}", (MUL_FPrST0 RST:$op)>;
2724 def : InstAlias<"fsub{|r}p\t{%st(0), $op|$op, st(0)}", (SUBR_FPrST0 RST:$op)>;
2725 def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>;
2726 def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>;
2727 def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>;
2729 // We accept "fnstsw %eax" even though it only writes %ax.
2730 def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>;
2731 def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>;
2732 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
2734 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
2735 // this is compatible with what GAS does.
2736 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2737 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2738 def : InstAlias<"lcall {*}$dst", (FARCALL32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2739 def : InstAlias<"ljmp {*}$dst", (FARJMP32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2740 def : InstAlias<"lcall $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2741 def : InstAlias<"ljmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2742 def : InstAlias<"lcall {*}$dst", (FARCALL16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2743 def : InstAlias<"ljmp {*}$dst", (FARJMP16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2745 def : InstAlias<"call {*}$dst", (CALL64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2746 def : InstAlias<"jmp {*}$dst", (JMP64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2747 def : InstAlias<"call {*}$dst", (CALL32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2748 def : InstAlias<"jmp {*}$dst", (JMP32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2749 def : InstAlias<"call {*}$dst", (CALL16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2750 def : InstAlias<"jmp {*}$dst", (JMP16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2753 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
2754 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm), 0>;
2755 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm), 0>;
2756 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm), 0>;
2757 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm), 0>;
2758 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri32 GR64:$r, GR64:$r, i64i32imm:$imm), 0>;
2759 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm), 0>;
2761 // inb %dx -> inb %al, %dx
2762 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
2763 def : InstAlias<"inw\t{%dx|dx}", (IN16rr), 0>;
2764 def : InstAlias<"inl\t{%dx|dx}", (IN32rr), 0>;
2765 def : InstAlias<"inb\t$port", (IN8ri i8imm:$port), 0>;
2766 def : InstAlias<"inw\t$port", (IN16ri i8imm:$port), 0>;
2767 def : InstAlias<"inl\t$port", (IN32ri i8imm:$port), 0>;
2770 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
2771 def : InstAlias<"call $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2772 def : InstAlias<"jmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2773 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2774 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2775 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
2776 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
2777 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2778 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2780 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
2781 // the move. All segment/mem forms are equivalent, this has the shortest
2783 def : InstAlias<"mov {$mem, $seg|$seg, $mem}", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem), 0>;
2784 def : InstAlias<"mov {$seg, $mem|$mem, $seg}", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg), 0>;
2786 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
2787 def : InstAlias<"movq {$imm, $reg|$reg, $imm}", (MOV64ri GR64:$reg, i64imm:$imm), 0>;
2789 // Match 'movq GR64, MMX' as an alias for movd.
2790 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2791 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
2792 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2793 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
2796 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
2797 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
2798 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
2799 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
2800 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
2801 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
2802 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
2805 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
2806 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
2807 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
2808 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
2809 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
2810 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
2811 // Note: No GR32->GR64 movzx form.
2813 // outb %dx -> outb %al, %dx
2814 def : InstAlias<"outb\t{%dx|dx}", (OUT8rr), 0>;
2815 def : InstAlias<"outw\t{%dx|dx}", (OUT16rr), 0>;
2816 def : InstAlias<"outl\t{%dx|dx}", (OUT32rr), 0>;
2817 def : InstAlias<"outb\t$port", (OUT8ir i8imm:$port), 0>;
2818 def : InstAlias<"outw\t$port", (OUT16ir i8imm:$port), 0>;
2819 def : InstAlias<"outl\t$port", (OUT32ir i8imm:$port), 0>;
2821 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
2822 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
2823 // errors, since its encoding is the most compact.
2824 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem), 0>;
2826 // shld/shrd op,op -> shld op, op, CL
2827 def : InstAlias<"shld{w}\t{$r2, $r1|$r1, $r2}", (SHLD16rrCL GR16:$r1, GR16:$r2), 0>;
2828 def : InstAlias<"shld{l}\t{$r2, $r1|$r1, $r2}", (SHLD32rrCL GR32:$r1, GR32:$r2), 0>;
2829 def : InstAlias<"shld{q}\t{$r2, $r1|$r1, $r2}", (SHLD64rrCL GR64:$r1, GR64:$r2), 0>;
2830 def : InstAlias<"shrd{w}\t{$r2, $r1|$r1, $r2}", (SHRD16rrCL GR16:$r1, GR16:$r2), 0>;
2831 def : InstAlias<"shrd{l}\t{$r2, $r1|$r1, $r2}", (SHRD32rrCL GR32:$r1, GR32:$r2), 0>;
2832 def : InstAlias<"shrd{q}\t{$r2, $r1|$r1, $r2}", (SHRD64rrCL GR64:$r1, GR64:$r2), 0>;
2834 def : InstAlias<"shld{w}\t{$reg, $mem|$mem, $reg}", (SHLD16mrCL i16mem:$mem, GR16:$reg), 0>;
2835 def : InstAlias<"shld{l}\t{$reg, $mem|$mem, $reg}", (SHLD32mrCL i32mem:$mem, GR32:$reg), 0>;
2836 def : InstAlias<"shld{q}\t{$reg, $mem|$mem, $reg}", (SHLD64mrCL i64mem:$mem, GR64:$reg), 0>;
2837 def : InstAlias<"shrd{w}\t{$reg, $mem|$mem, $reg}", (SHRD16mrCL i16mem:$mem, GR16:$reg), 0>;
2838 def : InstAlias<"shrd{l}\t{$reg, $mem|$mem, $reg}", (SHRD32mrCL i32mem:$mem, GR32:$reg), 0>;
2839 def : InstAlias<"shrd{q}\t{$reg, $mem|$mem, $reg}", (SHRD64mrCL i64mem:$mem, GR64:$reg), 0>;
2841 /* FIXME: This is disabled because the asm matcher is currently incapable of
2842 * matching a fixed immediate like $1.
2843 // "shl X, $1" is an alias for "shl X".
2844 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
2845 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2846 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
2847 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2848 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
2849 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2850 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
2851 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2852 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
2853 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2854 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
2855 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2856 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
2857 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2858 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
2859 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2860 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
2863 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2864 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2865 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2866 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2869 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2870 def : InstAlias<"test{b}\t{$val, $mem|$mem, $val}",
2871 (TEST8rm GR8 :$val, i8mem :$mem), 0>;
2872 def : InstAlias<"test{w}\t{$val, $mem|$mem, $val}",
2873 (TEST16rm GR16:$val, i16mem:$mem), 0>;
2874 def : InstAlias<"test{l}\t{$val, $mem|$mem, $val}",
2875 (TEST32rm GR32:$val, i32mem:$mem), 0>;
2876 def : InstAlias<"test{q}\t{$val, $mem|$mem, $val}",
2877 (TEST64rm GR64:$val, i64mem:$mem), 0>;
2879 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2880 def : InstAlias<"xchg{b}\t{$mem, $val|$val, $mem}",
2881 (XCHG8rm GR8 :$val, i8mem :$mem), 0>;
2882 def : InstAlias<"xchg{w}\t{$mem, $val|$val, $mem}",
2883 (XCHG16rm GR16:$val, i16mem:$mem), 0>;
2884 def : InstAlias<"xchg{l}\t{$mem, $val|$val, $mem}",
2885 (XCHG32rm GR32:$val, i32mem:$mem), 0>;
2886 def : InstAlias<"xchg{q}\t{$mem, $val|$val, $mem}",
2887 (XCHG64rm GR64:$val, i64mem:$mem), 0>;
2889 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2890 def : InstAlias<"xchg{w}\t{%ax, $src|$src, ax}", (XCHG16ar GR16:$src), 0>;
2891 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2892 (XCHG32ar GR32:$src), 0>, Requires<[Not64BitMode]>;
2893 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2894 (XCHG32ar64 GR32_NOAX:$src), 0>, Requires<[In64BitMode]>;
2895 def : InstAlias<"xchg{q}\t{%rax, $src|$src, rax}", (XCHG64ar GR64:$src), 0>;