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 = "printSSEAVXCC";
543 let OperandType = "OPERAND_IMMEDIATE";
546 def i8immZExt3 : ImmLeaf<i8, [{
547 return Imm >= 0 && Imm < 8;
550 def AVXCC : Operand<i8> {
551 let PrintMethod = "printSSEAVXCC";
552 let OperandType = "OPERAND_IMMEDIATE";
555 def i8immZExt5 : ImmLeaf<i8, [{
556 return Imm >= 0 && Imm < 32;
559 def AVX512ICC : Operand<i8> {
560 let PrintMethod = "printSSEAVXCC";
561 let OperandType = "OPERAND_IMMEDIATE";
564 class ImmSExtAsmOperandClass : AsmOperandClass {
565 let SuperClasses = [ImmAsmOperand];
566 let RenderMethod = "addImmOperands";
569 def X86GR32orGR64AsmOperand : AsmOperandClass {
570 let Name = "GR32orGR64";
573 def GR32orGR64 : RegisterOperand<GR32> {
574 let ParserMatchClass = X86GR32orGR64AsmOperand;
577 def AVX512RC : Operand<i32> {
578 let PrintMethod = "printRoundingControl";
579 let OperandType = "OPERAND_IMMEDIATE";
582 // Sign-extended immediate classes. We don't need to define the full lattice
583 // here because there is no instruction with an ambiguity between ImmSExti64i32
586 // The strange ranges come from the fact that the assembler always works with
587 // 64-bit immediates, but for a 16-bit target value we want to accept both "-1"
588 // (which will be a -1ULL), and "0xFF" (-1 in 16-bits).
591 // [0xFFFFFFFF80000000, 0xFFFFFFFFFFFFFFFF]
592 def ImmSExti64i32AsmOperand : ImmSExtAsmOperandClass {
593 let Name = "ImmSExti64i32";
596 // [0, 0x0000007F] | [0x000000000000FF80, 0x000000000000FFFF] |
597 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
598 def ImmSExti16i8AsmOperand : ImmSExtAsmOperandClass {
599 let Name = "ImmSExti16i8";
600 let SuperClasses = [ImmSExti64i32AsmOperand];
603 // [0, 0x0000007F] | [0x00000000FFFFFF80, 0x00000000FFFFFFFF] |
604 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
605 def ImmSExti32i8AsmOperand : ImmSExtAsmOperandClass {
606 let Name = "ImmSExti32i8";
610 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
611 def ImmSExti64i8AsmOperand : ImmSExtAsmOperandClass {
612 let Name = "ImmSExti64i8";
613 let SuperClasses = [ImmSExti16i8AsmOperand, ImmSExti32i8AsmOperand,
614 ImmSExti64i32AsmOperand];
617 // Unsigned immediate used by SSE/AVX instructions
619 // [0xFFFFFFFFFFFFFF80, 0xFFFFFFFFFFFFFFFF]
620 def ImmUnsignedi8AsmOperand : AsmOperandClass {
621 let Name = "ImmUnsignedi8";
622 let RenderMethod = "addImmOperands";
625 // A couple of more descriptive operand definitions.
626 // 16-bits but only 8 bits are significant.
627 def i16i8imm : Operand<i16> {
628 let ParserMatchClass = ImmSExti16i8AsmOperand;
629 let OperandType = "OPERAND_IMMEDIATE";
631 // 32-bits but only 8 bits are significant.
632 def i32i8imm : Operand<i32> {
633 let ParserMatchClass = ImmSExti32i8AsmOperand;
634 let OperandType = "OPERAND_IMMEDIATE";
637 // 64-bits but only 32 bits are significant.
638 def i64i32imm : Operand<i64> {
639 let ParserMatchClass = ImmSExti64i32AsmOperand;
640 let OperandType = "OPERAND_IMMEDIATE";
643 // 64-bits but only 8 bits are significant.
644 def i64i8imm : Operand<i64> {
645 let ParserMatchClass = ImmSExti64i8AsmOperand;
646 let OperandType = "OPERAND_IMMEDIATE";
649 // Unsigned 8-bit immediate used by SSE/AVX instructions.
650 def u8imm : Operand<i8> {
651 let PrintMethod = "printU8Imm";
652 let ParserMatchClass = ImmUnsignedi8AsmOperand;
653 let OperandType = "OPERAND_IMMEDIATE";
656 // 32-bit immediate but only 8-bits are significant and they are unsigned.
657 // Used by some SSE/AVX instructions that use intrinsics.
658 def i32u8imm : Operand<i32> {
659 let PrintMethod = "printU8Imm";
660 let ParserMatchClass = ImmUnsignedi8AsmOperand;
661 let OperandType = "OPERAND_IMMEDIATE";
664 // 64-bits but only 32 bits are significant, and those bits are treated as being
666 def i64i32imm_pcrel : Operand<i64> {
667 let PrintMethod = "printPCRelImm";
668 let ParserMatchClass = X86AbsMemAsmOperand;
669 let OperandType = "OPERAND_PCREL";
672 def lea64_32mem : Operand<i32> {
673 let PrintMethod = "printanymem";
674 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
675 let ParserMatchClass = X86MemAsmOperand;
678 // Memory operands that use 64-bit pointers in both ILP32 and LP64.
679 def lea64mem : Operand<i64> {
680 let PrintMethod = "printanymem";
681 let MIOperandInfo = (ops GR64, i8imm, GR64_NOSP, i32imm, i8imm);
682 let ParserMatchClass = X86MemAsmOperand;
686 //===----------------------------------------------------------------------===//
687 // X86 Complex Pattern Definitions.
690 // Define X86 specific addressing mode.
691 def addr : ComplexPattern<iPTR, 5, "SelectAddr", [], [SDNPWantParent]>;
692 def lea32addr : ComplexPattern<i32, 5, "SelectLEAAddr",
693 [add, sub, mul, X86mul_imm, shl, or, frameindex],
695 // In 64-bit mode 32-bit LEAs can use RIP-relative addressing.
696 def lea64_32addr : ComplexPattern<i32, 5, "SelectLEA64_32Addr",
697 [add, sub, mul, X86mul_imm, shl, or,
698 frameindex, X86WrapperRIP],
701 def tls32addr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
702 [tglobaltlsaddr], []>;
704 def tls32baseaddr : ComplexPattern<i32, 5, "SelectTLSADDRAddr",
705 [tglobaltlsaddr], []>;
707 def lea64addr : ComplexPattern<i64, 5, "SelectLEAAddr",
708 [add, sub, mul, X86mul_imm, shl, or, frameindex,
711 def tls64addr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
712 [tglobaltlsaddr], []>;
714 def tls64baseaddr : ComplexPattern<i64, 5, "SelectTLSADDRAddr",
715 [tglobaltlsaddr], []>;
717 //===----------------------------------------------------------------------===//
718 // X86 Instruction Predicate Definitions.
719 def HasCMov : Predicate<"Subtarget->hasCMov()">;
720 def NoCMov : Predicate<"!Subtarget->hasCMov()">;
722 def HasMMX : Predicate<"Subtarget->hasMMX()">;
723 def Has3DNow : Predicate<"Subtarget->has3DNow()">;
724 def Has3DNowA : Predicate<"Subtarget->has3DNowA()">;
725 def HasSSE1 : Predicate<"Subtarget->hasSSE1()">;
726 def UseSSE1 : Predicate<"Subtarget->hasSSE1() && !Subtarget->hasAVX()">;
727 def HasSSE2 : Predicate<"Subtarget->hasSSE2()">;
728 def UseSSE2 : Predicate<"Subtarget->hasSSE2() && !Subtarget->hasAVX()">;
729 def HasSSE3 : Predicate<"Subtarget->hasSSE3()">;
730 def UseSSE3 : Predicate<"Subtarget->hasSSE3() && !Subtarget->hasAVX()">;
731 def HasSSSE3 : Predicate<"Subtarget->hasSSSE3()">;
732 def UseSSSE3 : Predicate<"Subtarget->hasSSSE3() && !Subtarget->hasAVX()">;
733 def HasSSE41 : Predicate<"Subtarget->hasSSE41()">;
734 def NoSSE41 : Predicate<"!Subtarget->hasSSE41()">;
735 def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
736 def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
737 def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
738 def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
739 def HasAVX : Predicate<"Subtarget->hasAVX()">;
740 def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
741 def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;
742 def HasAVX512 : Predicate<"Subtarget->hasAVX512()">,
743 AssemblerPredicate<"FeatureAVX512", "AVX-512 ISA">;
744 def UseAVX : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX512()">;
745 def UseAVX2 : Predicate<"Subtarget->hasAVX2() && !Subtarget->hasAVX512()">;
746 def NoAVX512 : Predicate<"!Subtarget->hasAVX512()">;
747 def HasCDI : Predicate<"Subtarget->hasCDI()">;
748 def HasPFI : Predicate<"Subtarget->hasPFI()">;
749 def HasERI : Predicate<"Subtarget->hasERI()">;
750 def HasDQI : Predicate<"Subtarget->hasDQI()">;
751 def NoDQI : Predicate<"!Subtarget->hasDQI()">;
752 def HasBWI : Predicate<"Subtarget->hasBWI()">;
753 def HasVLX : Predicate<"Subtarget->hasVLX()">,
754 AssemblerPredicate<"FeatureVLX", "AVX-512 VLX ISA">;
755 def NoVLX : Predicate<"!Subtarget->hasVLX()">;
757 def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
758 def HasAES : Predicate<"Subtarget->hasAES()">;
759 def HasPCLMUL : Predicate<"Subtarget->hasPCLMUL()">;
760 def HasFMA : Predicate<"Subtarget->hasFMA()">;
761 def UseFMAOnAVX : Predicate<"Subtarget->hasFMA() && !Subtarget->hasAVX512()">;
762 def HasFMA4 : Predicate<"Subtarget->hasFMA4()">;
763 def HasXOP : Predicate<"Subtarget->hasXOP()">;
764 def HasTBM : Predicate<"Subtarget->hasTBM()">;
765 def HasMOVBE : Predicate<"Subtarget->hasMOVBE()">;
766 def HasRDRAND : Predicate<"Subtarget->hasRDRAND()">;
767 def HasF16C : Predicate<"Subtarget->hasF16C()">;
768 def HasFSGSBase : Predicate<"Subtarget->hasFSGSBase()">;
769 def HasLZCNT : Predicate<"Subtarget->hasLZCNT()">;
770 def HasBMI : Predicate<"Subtarget->hasBMI()">;
771 def HasBMI2 : Predicate<"Subtarget->hasBMI2()">;
772 def HasRTM : Predicate<"Subtarget->hasRTM()">;
773 def HasHLE : Predicate<"Subtarget->hasHLE()">;
774 def HasTSX : Predicate<"Subtarget->hasRTM() || Subtarget->hasHLE()">;
775 def HasADX : Predicate<"Subtarget->hasADX()">;
776 def HasSHA : Predicate<"Subtarget->hasSHA()">;
777 def HasSGX : Predicate<"Subtarget->hasSGX()">;
778 def HasPRFCHW : Predicate<"Subtarget->hasPRFCHW()">;
779 def HasRDSEED : Predicate<"Subtarget->hasRDSEED()">;
780 def HasSMAP : Predicate<"Subtarget->hasSMAP()">;
781 def HasPrefetchW : Predicate<"Subtarget->hasPRFCHW()">;
782 def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">;
783 def FPStackf64 : Predicate<"!Subtarget->hasSSE2()">;
784 def HasCmpxchg16b: Predicate<"Subtarget->hasCmpxchg16b()">;
785 def Not64BitMode : Predicate<"!Subtarget->is64Bit()">,
786 AssemblerPredicate<"!Mode64Bit", "Not 64-bit mode">;
787 def In64BitMode : Predicate<"Subtarget->is64Bit()">,
788 AssemblerPredicate<"Mode64Bit", "64-bit mode">;
789 def IsLP64 : Predicate<"Subtarget->isTarget64BitLP64()">;
790 def NotLP64 : Predicate<"!Subtarget->isTarget64BitLP64()">;
791 def In16BitMode : Predicate<"Subtarget->is16Bit()">,
792 AssemblerPredicate<"Mode16Bit", "16-bit mode">;
793 def Not16BitMode : Predicate<"!Subtarget->is16Bit()">,
794 AssemblerPredicate<"!Mode16Bit", "Not 16-bit mode">;
795 def In32BitMode : Predicate<"Subtarget->is32Bit()">,
796 AssemblerPredicate<"Mode32Bit", "32-bit mode">;
797 def IsWin64 : Predicate<"Subtarget->isTargetWin64()">;
798 def IsPS4 : Predicate<"Subtarget->isTargetPS4()">;
799 def NotPS4 : Predicate<"!Subtarget->isTargetPS4()">;
800 def IsNaCl : Predicate<"Subtarget->isTargetNaCl()">;
801 def NotNaCl : Predicate<"!Subtarget->isTargetNaCl()">;
802 def SmallCode : Predicate<"TM.getCodeModel() == CodeModel::Small">;
803 def KernelCode : Predicate<"TM.getCodeModel() == CodeModel::Kernel">;
804 def FarData : Predicate<"TM.getCodeModel() != CodeModel::Small &&"
805 "TM.getCodeModel() != CodeModel::Kernel">;
806 def NearData : Predicate<"TM.getCodeModel() == CodeModel::Small ||"
807 "TM.getCodeModel() == CodeModel::Kernel">;
808 def IsStatic : Predicate<"TM.getRelocationModel() == Reloc::Static">;
809 def IsNotPIC : Predicate<"TM.getRelocationModel() != Reloc::PIC_">;
810 def OptForSize : Predicate<"OptForSize">;
811 def OptForSpeed : Predicate<"!OptForSize">;
812 def FastBTMem : Predicate<"!Subtarget->isBTMemSlow()">;
813 def CallImmAddr : Predicate<"Subtarget->IsLegalToCallImmediateAddr(TM)">;
814 def FavorMemIndirectCall : Predicate<"!Subtarget->callRegIndirect()">;
815 def NotSlowIncDec : Predicate<"!Subtarget->slowIncDec()">;
816 def HasFastMem32 : Predicate<"!Subtarget->isUnalignedMem32Slow()">;
818 //===----------------------------------------------------------------------===//
819 // X86 Instruction Format Definitions.
822 include "X86InstrFormats.td"
824 //===----------------------------------------------------------------------===//
825 // Pattern fragments.
828 // X86 specific condition code. These correspond to CondCode in
829 // X86InstrInfo.h. They must be kept in synch.
830 def X86_COND_A : PatLeaf<(i8 0)>; // alt. COND_NBE
831 def X86_COND_AE : PatLeaf<(i8 1)>; // alt. COND_NC
832 def X86_COND_B : PatLeaf<(i8 2)>; // alt. COND_C
833 def X86_COND_BE : PatLeaf<(i8 3)>; // alt. COND_NA
834 def X86_COND_E : PatLeaf<(i8 4)>; // alt. COND_Z
835 def X86_COND_G : PatLeaf<(i8 5)>; // alt. COND_NLE
836 def X86_COND_GE : PatLeaf<(i8 6)>; // alt. COND_NL
837 def X86_COND_L : PatLeaf<(i8 7)>; // alt. COND_NGE
838 def X86_COND_LE : PatLeaf<(i8 8)>; // alt. COND_NG
839 def X86_COND_NE : PatLeaf<(i8 9)>; // alt. COND_NZ
840 def X86_COND_NO : PatLeaf<(i8 10)>;
841 def X86_COND_NP : PatLeaf<(i8 11)>; // alt. COND_PO
842 def X86_COND_NS : PatLeaf<(i8 12)>;
843 def X86_COND_O : PatLeaf<(i8 13)>;
844 def X86_COND_P : PatLeaf<(i8 14)>; // alt. COND_PE
845 def X86_COND_S : PatLeaf<(i8 15)>;
847 // Predicate used to help when pattern matching LZCNT/TZCNT.
848 def X86_COND_E_OR_NE : ImmLeaf<i8, [{
849 return (Imm == X86::COND_E) || (Imm == X86::COND_NE);
852 let FastIselShouldIgnore = 1 in { // FastIsel should ignore all simm8 instrs.
853 def i16immSExt8 : ImmLeaf<i16, [{ return Imm == (int8_t)Imm; }]>;
854 def i32immSExt8 : ImmLeaf<i32, [{ return Imm == (int8_t)Imm; }]>;
855 def i64immSExt8 : ImmLeaf<i64, [{ return Imm == (int8_t)Imm; }]>;
858 def i64immSExt32 : ImmLeaf<i64, [{ return Imm == (int32_t)Imm; }]>;
861 // i64immZExt32 predicate - True if the 64-bit immediate fits in a 32-bit
863 def i64immZExt32 : ImmLeaf<i64, [{ return (uint64_t)Imm == (uint32_t)Imm; }]>;
865 def i64immZExt32SExt8 : ImmLeaf<i64, [{
866 return (uint64_t)Imm == (uint32_t)Imm && (int32_t)Imm == (int8_t)Imm;
869 // Helper fragments for loads.
870 // It's always safe to treat a anyext i16 load as a i32 load if the i16 is
871 // known to be 32-bit aligned or better. Ditto for i8 to i16.
872 def loadi16 : PatFrag<(ops node:$ptr), (i16 (unindexedload node:$ptr)), [{
873 LoadSDNode *LD = cast<LoadSDNode>(N);
874 ISD::LoadExtType ExtType = LD->getExtensionType();
875 if (ExtType == ISD::NON_EXTLOAD)
877 if (ExtType == ISD::EXTLOAD)
878 return LD->getAlignment() >= 2 && !LD->isVolatile();
882 def loadi16_anyext : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)),[{
883 LoadSDNode *LD = cast<LoadSDNode>(N);
884 ISD::LoadExtType ExtType = LD->getExtensionType();
885 if (ExtType == ISD::EXTLOAD)
886 return LD->getAlignment() >= 2 && !LD->isVolatile();
890 def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
891 LoadSDNode *LD = cast<LoadSDNode>(N);
892 ISD::LoadExtType ExtType = LD->getExtensionType();
893 if (ExtType == ISD::NON_EXTLOAD)
895 if (ExtType == ISD::EXTLOAD)
896 return LD->getAlignment() >= 4 && !LD->isVolatile();
900 def loadi8 : PatFrag<(ops node:$ptr), (i8 (load node:$ptr))>;
901 def loadi64 : PatFrag<(ops node:$ptr), (i64 (load node:$ptr))>;
902 def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
903 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
904 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
906 def sextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
907 def sextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
908 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
909 def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>;
910 def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>;
911 def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>;
913 def zextloadi8i1 : PatFrag<(ops node:$ptr), (i8 (zextloadi1 node:$ptr))>;
914 def zextloadi16i1 : PatFrag<(ops node:$ptr), (i16 (zextloadi1 node:$ptr))>;
915 def zextloadi32i1 : PatFrag<(ops node:$ptr), (i32 (zextloadi1 node:$ptr))>;
916 def zextloadi16i8 : PatFrag<(ops node:$ptr), (i16 (zextloadi8 node:$ptr))>;
917 def zextloadi32i8 : PatFrag<(ops node:$ptr), (i32 (zextloadi8 node:$ptr))>;
918 def zextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (zextloadi16 node:$ptr))>;
919 def zextloadi64i1 : PatFrag<(ops node:$ptr), (i64 (zextloadi1 node:$ptr))>;
920 def zextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (zextloadi8 node:$ptr))>;
921 def zextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (zextloadi16 node:$ptr))>;
922 def zextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (zextloadi32 node:$ptr))>;
924 def extloadi8i1 : PatFrag<(ops node:$ptr), (i8 (extloadi1 node:$ptr))>;
925 def extloadi16i1 : PatFrag<(ops node:$ptr), (i16 (extloadi1 node:$ptr))>;
926 def extloadi32i1 : PatFrag<(ops node:$ptr), (i32 (extloadi1 node:$ptr))>;
927 def extloadi16i8 : PatFrag<(ops node:$ptr), (i16 (extloadi8 node:$ptr))>;
928 def extloadi32i8 : PatFrag<(ops node:$ptr), (i32 (extloadi8 node:$ptr))>;
929 def extloadi32i16 : PatFrag<(ops node:$ptr), (i32 (extloadi16 node:$ptr))>;
930 def extloadi64i1 : PatFrag<(ops node:$ptr), (i64 (extloadi1 node:$ptr))>;
931 def extloadi64i8 : PatFrag<(ops node:$ptr), (i64 (extloadi8 node:$ptr))>;
932 def extloadi64i16 : PatFrag<(ops node:$ptr), (i64 (extloadi16 node:$ptr))>;
933 def extloadi64i32 : PatFrag<(ops node:$ptr), (i64 (extloadi32 node:$ptr))>;
936 // An 'and' node with a single use.
937 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
938 return N->hasOneUse();
940 // An 'srl' node with a single use.
941 def srl_su : PatFrag<(ops node:$lhs, node:$rhs), (srl node:$lhs, node:$rhs), [{
942 return N->hasOneUse();
944 // An 'trunc' node with a single use.
945 def trunc_su : PatFrag<(ops node:$src), (trunc node:$src), [{
946 return N->hasOneUse();
949 //===----------------------------------------------------------------------===//
954 let hasSideEffects = 0, SchedRW = [WriteZero] in {
955 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", [], IIC_NOP>;
956 def NOOPW : I<0x1f, MRMXm, (outs), (ins i16mem:$zero),
957 "nop{w}\t$zero", [], IIC_NOP>, TB, OpSize16;
958 def NOOPL : I<0x1f, MRMXm, (outs), (ins i32mem:$zero),
959 "nop{l}\t$zero", [], IIC_NOP>, TB, OpSize32;
963 // Constructing a stack frame.
964 def ENTER : Ii16<0xC8, RawFrmImm8, (outs), (ins i16imm:$len, i8imm:$lvl),
965 "enter\t$len, $lvl", [], IIC_ENTER>, Sched<[WriteMicrocoded]>;
967 let SchedRW = [WriteALU] in {
968 let Defs = [EBP, ESP], Uses = [EBP, ESP], mayLoad = 1, hasSideEffects=0 in
969 def LEAVE : I<0xC9, RawFrm,
970 (outs), (ins), "leave", [], IIC_LEAVE>,
971 Requires<[Not64BitMode]>;
973 let Defs = [RBP,RSP], Uses = [RBP,RSP], mayLoad = 1, hasSideEffects = 0 in
974 def LEAVE64 : I<0xC9, RawFrm,
975 (outs), (ins), "leave", [], IIC_LEAVE>,
976 Requires<[In64BitMode]>;
979 //===----------------------------------------------------------------------===//
980 // Miscellaneous Instructions.
983 let Defs = [ESP], Uses = [ESP], hasSideEffects=0 in {
984 let mayLoad = 1, SchedRW = [WriteLoad] in {
985 def POP16r : I<0x58, AddRegFrm, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
986 IIC_POP_REG16>, OpSize16;
987 def POP32r : I<0x58, AddRegFrm, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
988 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
989 def POP16rmr: I<0x8F, MRM0r, (outs GR16:$reg), (ins), "pop{w}\t$reg", [],
990 IIC_POP_REG>, OpSize16;
991 def POP16rmm: I<0x8F, MRM0m, (outs), (ins i16mem:$dst), "pop{w}\t$dst", [],
992 IIC_POP_MEM>, OpSize16;
993 def POP32rmr: I<0x8F, MRM0r, (outs GR32:$reg), (ins), "pop{l}\t$reg", [],
994 IIC_POP_REG>, OpSize32, Requires<[Not64BitMode]>;
995 def POP32rmm: I<0x8F, MRM0m, (outs), (ins i32mem:$dst), "pop{l}\t$dst", [],
996 IIC_POP_MEM>, OpSize32, Requires<[Not64BitMode]>;
997 } // mayLoad, SchedRW
999 let mayStore = 1, SchedRW = [WriteStore] in {
1000 def PUSH16r : I<0x50, AddRegFrm, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
1001 IIC_PUSH_REG>, OpSize16;
1002 def PUSH32r : I<0x50, AddRegFrm, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
1003 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
1004 def PUSH16rmr: I<0xFF, MRM6r, (outs), (ins GR16:$reg), "push{w}\t$reg",[],
1005 IIC_PUSH_REG>, OpSize16;
1006 def PUSH16rmm: I<0xFF, MRM6m, (outs), (ins i16mem:$src), "push{w}\t$src",[],
1007 IIC_PUSH_MEM>, OpSize16;
1008 def PUSH32rmr: I<0xFF, MRM6r, (outs), (ins GR32:$reg), "push{l}\t$reg",[],
1009 IIC_PUSH_REG>, OpSize32, Requires<[Not64BitMode]>;
1010 def PUSH32rmm: I<0xFF, MRM6m, (outs), (ins i32mem:$src), "push{l}\t$src",[],
1011 IIC_PUSH_MEM>, OpSize32, Requires<[Not64BitMode]>;
1013 def PUSH16i8 : Ii8<0x6a, RawFrm, (outs), (ins i16i8imm:$imm),
1014 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1015 Requires<[Not64BitMode]>;
1016 def PUSH32i8 : Ii8<0x6a, RawFrm, (outs), (ins i32i8imm:$imm),
1017 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1018 Requires<[Not64BitMode]>;
1019 def PUSHi16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1020 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1021 Requires<[Not64BitMode]>;
1022 def PUSHi32 : Ii32<0x68, RawFrm, (outs), (ins i32imm:$imm),
1023 "push{l}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1024 Requires<[Not64BitMode]>;
1025 } // mayStore, SchedRW
1028 let Defs = [ESP, EFLAGS], Uses = [ESP], mayLoad = 1, hasSideEffects=0,
1029 SchedRW = [WriteLoad] in {
1030 def POPF16 : I<0x9D, RawFrm, (outs), (ins), "popf{w}", [], IIC_POP_F>,
1032 def POPF32 : I<0x9D, RawFrm, (outs), (ins), "popf{l|d}", [], IIC_POP_FD>,
1033 OpSize32, Requires<[Not64BitMode]>;
1036 let Defs = [ESP], Uses = [ESP, EFLAGS], mayStore = 1, hasSideEffects=0,
1037 SchedRW = [WriteStore] in {
1038 def PUSHF16 : I<0x9C, RawFrm, (outs), (ins), "pushf{w}", [], IIC_PUSH_F>,
1040 def PUSHF32 : I<0x9C, RawFrm, (outs), (ins), "pushf{l|d}", [], IIC_PUSH_F>,
1041 OpSize32, Requires<[Not64BitMode]>;
1044 let Defs = [RSP], Uses = [RSP], hasSideEffects=0 in {
1045 let mayLoad = 1, SchedRW = [WriteLoad] in {
1046 def POP64r : I<0x58, AddRegFrm, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1047 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1048 def POP64rmr: I<0x8F, MRM0r, (outs GR64:$reg), (ins), "pop{q}\t$reg", [],
1049 IIC_POP_REG>, OpSize32, Requires<[In64BitMode]>;
1050 def POP64rmm: I<0x8F, MRM0m, (outs), (ins i64mem:$dst), "pop{q}\t$dst", [],
1051 IIC_POP_MEM>, OpSize32, Requires<[In64BitMode]>;
1052 } // mayLoad, SchedRW
1053 let mayStore = 1, SchedRW = [WriteStore] in {
1054 def PUSH64r : I<0x50, AddRegFrm, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1055 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1056 def PUSH64rmr: I<0xFF, MRM6r, (outs), (ins GR64:$reg), "push{q}\t$reg", [],
1057 IIC_PUSH_REG>, OpSize32, Requires<[In64BitMode]>;
1058 def PUSH64rmm: I<0xFF, MRM6m, (outs), (ins i64mem:$src), "push{q}\t$src", [],
1059 IIC_PUSH_MEM>, OpSize32, Requires<[In64BitMode]>;
1060 } // mayStore, SchedRW
1063 let Defs = [RSP], Uses = [RSP], hasSideEffects = 0, mayStore = 1,
1064 SchedRW = [WriteStore] in {
1065 def PUSH64i8 : Ii8<0x6a, RawFrm, (outs), (ins i64i8imm:$imm),
1066 "push{q}\t$imm", [], IIC_PUSH_IMM>, Requires<[In64BitMode]>;
1067 def PUSH64i16 : Ii16<0x68, RawFrm, (outs), (ins i16imm:$imm),
1068 "push{w}\t$imm", [], IIC_PUSH_IMM>, OpSize16,
1069 Requires<[In64BitMode]>;
1070 def PUSH64i32 : Ii32S<0x68, RawFrm, (outs), (ins i64i32imm:$imm),
1071 "push{q}\t$imm", [], IIC_PUSH_IMM>, OpSize32,
1072 Requires<[In64BitMode]>;
1075 let Defs = [RSP, EFLAGS], Uses = [RSP], mayLoad = 1, hasSideEffects=0 in
1076 def POPF64 : I<0x9D, RawFrm, (outs), (ins), "popfq", [], IIC_POP_FD>,
1077 OpSize32, Requires<[In64BitMode]>, Sched<[WriteLoad]>;
1078 let Defs = [RSP], Uses = [RSP, EFLAGS], mayStore = 1, hasSideEffects=0 in
1079 def PUSHF64 : I<0x9C, RawFrm, (outs), (ins), "pushfq", [], IIC_PUSH_F>,
1080 OpSize32, Requires<[In64BitMode]>, Sched<[WriteStore]>;
1082 let Defs = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP], Uses = [ESP],
1083 mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteLoad] in {
1084 def POPA32 : I<0x61, RawFrm, (outs), (ins), "popal", [], IIC_POP_A>,
1085 OpSize32, Requires<[Not64BitMode]>;
1086 def POPA16 : I<0x61, RawFrm, (outs), (ins), "popaw", [], IIC_POP_A>,
1087 OpSize16, Requires<[Not64BitMode]>;
1089 let Defs = [ESP], Uses = [EDI, ESI, EBP, EBX, EDX, ECX, EAX, ESP],
1090 mayStore = 1, hasSideEffects = 0, SchedRW = [WriteStore] in {
1091 def PUSHA32 : I<0x60, RawFrm, (outs), (ins), "pushal", [], IIC_PUSH_A>,
1092 OpSize32, Requires<[Not64BitMode]>;
1093 def PUSHA16 : I<0x60, RawFrm, (outs), (ins), "pushaw", [], IIC_PUSH_A>,
1094 OpSize16, Requires<[Not64BitMode]>;
1097 let Constraints = "$src = $dst", SchedRW = [WriteALU] in {
1098 // GR32 = bswap GR32
1099 def BSWAP32r : I<0xC8, AddRegFrm,
1100 (outs GR32:$dst), (ins GR32:$src),
1102 [(set GR32:$dst, (bswap GR32:$src))], IIC_BSWAP>, OpSize32, TB;
1104 def BSWAP64r : RI<0xC8, AddRegFrm, (outs GR64:$dst), (ins GR64:$src),
1106 [(set GR64:$dst, (bswap GR64:$src))], IIC_BSWAP>, TB;
1107 } // Constraints = "$src = $dst", SchedRW
1109 // Bit scan instructions.
1110 let Defs = [EFLAGS] in {
1111 def BSF16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1112 "bsf{w}\t{$src, $dst|$dst, $src}",
1113 [(set GR16:$dst, EFLAGS, (X86bsf GR16:$src))],
1114 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1115 def BSF16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1116 "bsf{w}\t{$src, $dst|$dst, $src}",
1117 [(set GR16:$dst, EFLAGS, (X86bsf (loadi16 addr:$src)))],
1118 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1119 def BSF32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1120 "bsf{l}\t{$src, $dst|$dst, $src}",
1121 [(set GR32:$dst, EFLAGS, (X86bsf GR32:$src))],
1122 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1123 def BSF32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1124 "bsf{l}\t{$src, $dst|$dst, $src}",
1125 [(set GR32:$dst, EFLAGS, (X86bsf (loadi32 addr:$src)))],
1126 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1127 def BSF64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1128 "bsf{q}\t{$src, $dst|$dst, $src}",
1129 [(set GR64:$dst, EFLAGS, (X86bsf GR64:$src))],
1130 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1131 def BSF64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1132 "bsf{q}\t{$src, $dst|$dst, $src}",
1133 [(set GR64:$dst, EFLAGS, (X86bsf (loadi64 addr:$src)))],
1134 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1136 def BSR16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1137 "bsr{w}\t{$src, $dst|$dst, $src}",
1138 [(set GR16:$dst, EFLAGS, (X86bsr GR16:$src))],
1139 IIC_BIT_SCAN_REG>, PS, OpSize16, Sched<[WriteShift]>;
1140 def BSR16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1141 "bsr{w}\t{$src, $dst|$dst, $src}",
1142 [(set GR16:$dst, EFLAGS, (X86bsr (loadi16 addr:$src)))],
1143 IIC_BIT_SCAN_MEM>, PS, OpSize16, Sched<[WriteShiftLd]>;
1144 def BSR32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1145 "bsr{l}\t{$src, $dst|$dst, $src}",
1146 [(set GR32:$dst, EFLAGS, (X86bsr GR32:$src))],
1147 IIC_BIT_SCAN_REG>, PS, OpSize32, Sched<[WriteShift]>;
1148 def BSR32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1149 "bsr{l}\t{$src, $dst|$dst, $src}",
1150 [(set GR32:$dst, EFLAGS, (X86bsr (loadi32 addr:$src)))],
1151 IIC_BIT_SCAN_MEM>, PS, OpSize32, Sched<[WriteShiftLd]>;
1152 def BSR64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1153 "bsr{q}\t{$src, $dst|$dst, $src}",
1154 [(set GR64:$dst, EFLAGS, (X86bsr GR64:$src))],
1155 IIC_BIT_SCAN_REG>, PS, Sched<[WriteShift]>;
1156 def BSR64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1157 "bsr{q}\t{$src, $dst|$dst, $src}",
1158 [(set GR64:$dst, EFLAGS, (X86bsr (loadi64 addr:$src)))],
1159 IIC_BIT_SCAN_MEM>, PS, Sched<[WriteShiftLd]>;
1160 } // Defs = [EFLAGS]
1162 let SchedRW = [WriteMicrocoded] in {
1163 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1164 let Defs = [EDI,ESI], Uses = [EDI,ESI,EFLAGS] in {
1165 def MOVSB : I<0xA4, RawFrmDstSrc, (outs dstidx8:$dst), (ins srcidx8:$src),
1166 "movsb\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1167 def MOVSW : I<0xA5, RawFrmDstSrc, (outs dstidx16:$dst), (ins srcidx16:$src),
1168 "movsw\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize16;
1169 def MOVSL : I<0xA5, RawFrmDstSrc, (outs dstidx32:$dst), (ins srcidx32:$src),
1170 "movs{l|d}\t{$src, $dst|$dst, $src}", [], IIC_MOVS>, OpSize32;
1171 def MOVSQ : RI<0xA5, RawFrmDstSrc, (outs dstidx64:$dst), (ins srcidx64:$src),
1172 "movsq\t{$src, $dst|$dst, $src}", [], IIC_MOVS>;
1175 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1176 let Defs = [EDI], Uses = [AL,EDI,EFLAGS] in
1177 def STOSB : I<0xAA, RawFrmDst, (outs dstidx8:$dst), (ins),
1178 "stosb\t{%al, $dst|$dst, al}", [], IIC_STOS>;
1179 let Defs = [EDI], Uses = [AX,EDI,EFLAGS] in
1180 def STOSW : I<0xAB, RawFrmDst, (outs dstidx16:$dst), (ins),
1181 "stosw\t{%ax, $dst|$dst, ax}", [], IIC_STOS>, OpSize16;
1182 let Defs = [EDI], Uses = [EAX,EDI,EFLAGS] in
1183 def STOSL : I<0xAB, RawFrmDst, (outs dstidx32:$dst), (ins),
1184 "stos{l|d}\t{%eax, $dst|$dst, eax}", [], IIC_STOS>, OpSize32;
1185 let Defs = [RCX,RDI], Uses = [RAX,RCX,RDI,EFLAGS] in
1186 def STOSQ : RI<0xAB, RawFrmDst, (outs dstidx64:$dst), (ins),
1187 "stosq\t{%rax, $dst|$dst, rax}", [], IIC_STOS>;
1189 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1190 let Defs = [EDI,EFLAGS], Uses = [AL,EDI,EFLAGS] in
1191 def SCASB : I<0xAE, RawFrmDst, (outs), (ins dstidx8:$dst),
1192 "scasb\t{$dst, %al|al, $dst}", [], IIC_SCAS>;
1193 let Defs = [EDI,EFLAGS], Uses = [AX,EDI,EFLAGS] in
1194 def SCASW : I<0xAF, RawFrmDst, (outs), (ins dstidx16:$dst),
1195 "scasw\t{$dst, %ax|ax, $dst}", [], IIC_SCAS>, OpSize16;
1196 let Defs = [EDI,EFLAGS], Uses = [EAX,EDI,EFLAGS] in
1197 def SCASL : I<0xAF, RawFrmDst, (outs), (ins dstidx32:$dst),
1198 "scas{l|d}\t{$dst, %eax|eax, $dst}", [], IIC_SCAS>, OpSize32;
1199 let Defs = [EDI,EFLAGS], Uses = [RAX,EDI,EFLAGS] in
1200 def SCASQ : RI<0xAF, RawFrmDst, (outs), (ins dstidx64:$dst),
1201 "scasq\t{$dst, %rax|rax, $dst}", [], IIC_SCAS>;
1203 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1204 let Defs = [EDI,ESI,EFLAGS], Uses = [EDI,ESI,EFLAGS] in {
1205 def CMPSB : I<0xA6, RawFrmDstSrc, (outs), (ins dstidx8:$dst, srcidx8:$src),
1206 "cmpsb\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1207 def CMPSW : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx16:$dst, srcidx16:$src),
1208 "cmpsw\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize16;
1209 def CMPSL : I<0xA7, RawFrmDstSrc, (outs), (ins dstidx32:$dst, srcidx32:$src),
1210 "cmps{l|d}\t{$dst, $src|$src, $dst}", [], IIC_CMPS>, OpSize32;
1211 def CMPSQ : RI<0xA7, RawFrmDstSrc, (outs), (ins dstidx64:$dst, srcidx64:$src),
1212 "cmpsq\t{$dst, $src|$src, $dst}", [], IIC_CMPS>;
1216 //===----------------------------------------------------------------------===//
1217 // Move Instructions.
1219 let SchedRW = [WriteMove] in {
1220 let hasSideEffects = 0 in {
1221 def MOV8rr : I<0x88, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src),
1222 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1223 def MOV16rr : I<0x89, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1224 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1225 def MOV32rr : I<0x89, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1226 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1227 def MOV64rr : RI<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1228 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1231 let isReMaterializable = 1, isAsCheapAsAMove = 1 in {
1232 def MOV8ri : Ii8 <0xB0, AddRegFrm, (outs GR8 :$dst), (ins i8imm :$src),
1233 "mov{b}\t{$src, $dst|$dst, $src}",
1234 [(set GR8:$dst, imm:$src)], IIC_MOV>;
1235 def MOV16ri : Ii16<0xB8, AddRegFrm, (outs GR16:$dst), (ins i16imm:$src),
1236 "mov{w}\t{$src, $dst|$dst, $src}",
1237 [(set GR16:$dst, imm:$src)], IIC_MOV>, OpSize16;
1238 def MOV32ri : Ii32<0xB8, AddRegFrm, (outs GR32:$dst), (ins i32imm:$src),
1239 "mov{l}\t{$src, $dst|$dst, $src}",
1240 [(set GR32:$dst, imm:$src)], IIC_MOV>, OpSize32;
1241 def MOV64ri32 : RIi32S<0xC7, MRM0r, (outs GR64:$dst), (ins i64i32imm:$src),
1242 "mov{q}\t{$src, $dst|$dst, $src}",
1243 [(set GR64:$dst, i64immSExt32:$src)], IIC_MOV>;
1245 let isReMaterializable = 1 in {
1246 def MOV64ri : RIi64<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64imm:$src),
1247 "movabs{q}\t{$src, $dst|$dst, $src}",
1248 [(set GR64:$dst, imm:$src)], IIC_MOV>;
1251 // Longer forms that use a ModR/M byte. Needed for disassembler
1252 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0 in {
1253 def MOV8ri_alt : Ii8 <0xC6, MRM0r, (outs GR8 :$dst), (ins i8imm :$src),
1254 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1255 def MOV16ri_alt : Ii16<0xC7, MRM0r, (outs GR16:$dst), (ins i16imm:$src),
1256 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1257 def MOV32ri_alt : Ii32<0xC7, MRM0r, (outs GR32:$dst), (ins i32imm:$src),
1258 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1262 let SchedRW = [WriteStore] in {
1263 def MOV8mi : Ii8 <0xC6, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src),
1264 "mov{b}\t{$src, $dst|$dst, $src}",
1265 [(store (i8 imm:$src), addr:$dst)], IIC_MOV_MEM>;
1266 def MOV16mi : Ii16<0xC7, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src),
1267 "mov{w}\t{$src, $dst|$dst, $src}",
1268 [(store (i16 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize16;
1269 def MOV32mi : Ii32<0xC7, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src),
1270 "mov{l}\t{$src, $dst|$dst, $src}",
1271 [(store (i32 imm:$src), addr:$dst)], IIC_MOV_MEM>, OpSize32;
1272 def MOV64mi32 : RIi32S<0xC7, MRM0m, (outs), (ins i64mem:$dst, i64i32imm:$src),
1273 "mov{q}\t{$src, $dst|$dst, $src}",
1274 [(store i64immSExt32:$src, addr:$dst)], IIC_MOV_MEM>;
1277 let hasSideEffects = 0 in {
1279 /// Memory offset versions of moves. The immediate is an address mode sized
1280 /// offset from the segment base.
1281 let SchedRW = [WriteALU] in {
1282 let mayLoad = 1 in {
1284 def MOV8ao32 : Ii32<0xA0, RawFrmMemOffs, (outs), (ins offset32_8:$src),
1285 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>,
1288 def MOV16ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_16:$src),
1289 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1292 def MOV32ao32 : Ii32<0xA1, RawFrmMemOffs, (outs), (ins offset32_32:$src),
1293 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1296 def MOV64ao32 : RIi32<0xA1, RawFrmMemOffs, (outs), (ins offset32_64:$src),
1297 "mov{q}\t{$src, %rax|rax, $src}", [], IIC_MOV_MEM>,
1301 def MOV8ao16 : Ii16<0xA0, RawFrmMemOffs, (outs), (ins offset16_8:$src),
1302 "mov{b}\t{$src, %al|al, $src}", [], IIC_MOV_MEM>, AdSize16;
1304 def MOV16ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_16:$src),
1305 "mov{w}\t{$src, %ax|ax, $src}", [], IIC_MOV_MEM>,
1308 def MOV32ao16 : Ii16<0xA1, RawFrmMemOffs, (outs), (ins offset16_32:$src),
1309 "mov{l}\t{$src, %eax|eax, $src}", [], IIC_MOV_MEM>,
1312 let mayStore = 1 in {
1314 def MOV8o32a : Ii32<0xA2, RawFrmMemOffs, (outs offset32_8:$dst), (ins),
1315 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize32;
1317 def MOV16o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_16:$dst), (ins),
1318 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1321 def MOV32o32a : Ii32<0xA3, RawFrmMemOffs, (outs offset32_32:$dst), (ins),
1322 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1325 def MOV64o32a : RIi32<0xA3, RawFrmMemOffs, (outs offset32_64:$dst), (ins),
1326 "mov{q}\t{%rax, $dst|$dst, rax}", [], IIC_MOV_MEM>,
1330 def MOV8o16a : Ii16<0xA2, RawFrmMemOffs, (outs offset16_8:$dst), (ins),
1331 "mov{b}\t{%al, $dst|$dst, al}", [], IIC_MOV_MEM>, AdSize16;
1333 def MOV16o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_16:$dst), (ins),
1334 "mov{w}\t{%ax, $dst|$dst, ax}", [], IIC_MOV_MEM>,
1337 def MOV32o16a : Ii16<0xA3, RawFrmMemOffs, (outs offset16_32:$dst), (ins),
1338 "mov{l}\t{%eax, $dst|$dst, eax}", [], IIC_MOV_MEM>,
1343 // These forms all have full 64-bit absolute addresses in their instructions
1344 // and use the movabs mnemonic to indicate this specific form.
1345 let mayLoad = 1 in {
1347 def MOV8ao64 : RIi64_NOREX<0xA0, RawFrmMemOffs, (outs), (ins offset64_8:$src),
1348 "movabs{b}\t{$src, %al|al, $src}", []>, AdSize64;
1350 def MOV16ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_16:$src),
1351 "movabs{w}\t{$src, %ax|ax, $src}", []>, OpSize16, AdSize64;
1353 def MOV32ao64 : RIi64_NOREX<0xA1, RawFrmMemOffs, (outs), (ins offset64_32:$src),
1354 "movabs{l}\t{$src, %eax|eax, $src}", []>, OpSize32,
1357 def MOV64ao64 : RIi64<0xA1, RawFrmMemOffs, (outs), (ins offset64_64:$src),
1358 "movabs{q}\t{$src, %rax|rax, $src}", []>, AdSize64;
1361 let mayStore = 1 in {
1363 def MOV8o64a : RIi64_NOREX<0xA2, RawFrmMemOffs, (outs offset64_8:$dst), (ins),
1364 "movabs{b}\t{%al, $dst|$dst, al}", []>, AdSize64;
1366 def MOV16o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_16:$dst), (ins),
1367 "movabs{w}\t{%ax, $dst|$dst, ax}", []>, OpSize16, AdSize64;
1369 def MOV32o64a : RIi64_NOREX<0xA3, RawFrmMemOffs, (outs offset64_32:$dst), (ins),
1370 "movabs{l}\t{%eax, $dst|$dst, eax}", []>, OpSize32,
1373 def MOV64o64a : RIi64<0xA3, RawFrmMemOffs, (outs offset64_64:$dst), (ins),
1374 "movabs{q}\t{%rax, $dst|$dst, rax}", []>, AdSize64;
1376 } // hasSideEffects = 0
1378 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0,
1379 SchedRW = [WriteMove] in {
1380 def MOV8rr_REV : I<0x8A, MRMSrcReg, (outs GR8:$dst), (ins GR8:$src),
1381 "mov{b}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1382 def MOV16rr_REV : I<0x8B, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
1383 "mov{w}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize16;
1384 def MOV32rr_REV : I<0x8B, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
1385 "mov{l}\t{$src, $dst|$dst, $src}", [], IIC_MOV>, OpSize32;
1386 def MOV64rr_REV : RI<0x8B, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
1387 "mov{q}\t{$src, $dst|$dst, $src}", [], IIC_MOV>;
1390 let canFoldAsLoad = 1, isReMaterializable = 1, SchedRW = [WriteLoad] in {
1391 def MOV8rm : I<0x8A, MRMSrcMem, (outs GR8 :$dst), (ins i8mem :$src),
1392 "mov{b}\t{$src, $dst|$dst, $src}",
1393 [(set GR8:$dst, (loadi8 addr:$src))], IIC_MOV_MEM>;
1394 def MOV16rm : I<0x8B, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1395 "mov{w}\t{$src, $dst|$dst, $src}",
1396 [(set GR16:$dst, (loadi16 addr:$src))], IIC_MOV_MEM>, OpSize16;
1397 def MOV32rm : I<0x8B, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1398 "mov{l}\t{$src, $dst|$dst, $src}",
1399 [(set GR32:$dst, (loadi32 addr:$src))], IIC_MOV_MEM>, OpSize32;
1400 def MOV64rm : RI<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1401 "mov{q}\t{$src, $dst|$dst, $src}",
1402 [(set GR64:$dst, (load addr:$src))], IIC_MOV_MEM>;
1405 let SchedRW = [WriteStore] in {
1406 def MOV8mr : I<0x88, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src),
1407 "mov{b}\t{$src, $dst|$dst, $src}",
1408 [(store GR8:$src, addr:$dst)], IIC_MOV_MEM>;
1409 def MOV16mr : I<0x89, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1410 "mov{w}\t{$src, $dst|$dst, $src}",
1411 [(store GR16:$src, addr:$dst)], IIC_MOV_MEM>, OpSize16;
1412 def MOV32mr : I<0x89, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1413 "mov{l}\t{$src, $dst|$dst, $src}",
1414 [(store GR32:$src, addr:$dst)], IIC_MOV_MEM>, OpSize32;
1415 def MOV64mr : RI<0x89, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1416 "mov{q}\t{$src, $dst|$dst, $src}",
1417 [(store GR64:$src, addr:$dst)], IIC_MOV_MEM>;
1420 // Versions of MOV8rr, MOV8mr, and MOV8rm that use i8mem_NOREX and GR8_NOREX so
1421 // that they can be used for copying and storing h registers, which can't be
1422 // encoded when a REX prefix is present.
1423 let isCodeGenOnly = 1 in {
1424 let hasSideEffects = 0 in
1425 def MOV8rr_NOREX : I<0x88, MRMDestReg,
1426 (outs GR8_NOREX:$dst), (ins GR8_NOREX:$src),
1427 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [], IIC_MOV>,
1429 let mayStore = 1, hasSideEffects = 0 in
1430 def MOV8mr_NOREX : I<0x88, MRMDestMem,
1431 (outs), (ins i8mem_NOREX:$dst, GR8_NOREX:$src),
1432 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1433 IIC_MOV_MEM>, Sched<[WriteStore]>;
1434 let mayLoad = 1, hasSideEffects = 0,
1435 canFoldAsLoad = 1, isReMaterializable = 1 in
1436 def MOV8rm_NOREX : I<0x8A, MRMSrcMem,
1437 (outs GR8_NOREX:$dst), (ins i8mem_NOREX:$src),
1438 "mov{b}\t{$src, $dst|$dst, $src} # NOREX", [],
1439 IIC_MOV_MEM>, Sched<[WriteLoad]>;
1443 // Condition code ops, incl. set if equal/not equal/...
1444 let SchedRW = [WriteALU] in {
1445 let Defs = [EFLAGS], Uses = [AH] in
1446 def SAHF : I<0x9E, RawFrm, (outs), (ins), "sahf",
1447 [(set EFLAGS, (X86sahf AH))], IIC_AHF>;
1448 let Defs = [AH], Uses = [EFLAGS], hasSideEffects = 0 in
1449 def LAHF : I<0x9F, RawFrm, (outs), (ins), "lahf", [],
1450 IIC_AHF>; // AH = flags
1453 //===----------------------------------------------------------------------===//
1454 // Bit tests instructions: BT, BTS, BTR, BTC.
1456 let Defs = [EFLAGS] in {
1457 let SchedRW = [WriteALU] in {
1458 def BT16rr : I<0xA3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1459 "bt{w}\t{$src2, $src1|$src1, $src2}",
1460 [(set EFLAGS, (X86bt GR16:$src1, GR16:$src2))], IIC_BT_RR>,
1462 def BT32rr : I<0xA3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1463 "bt{l}\t{$src2, $src1|$src1, $src2}",
1464 [(set EFLAGS, (X86bt GR32:$src1, GR32:$src2))], IIC_BT_RR>,
1466 def BT64rr : RI<0xA3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1467 "bt{q}\t{$src2, $src1|$src1, $src2}",
1468 [(set EFLAGS, (X86bt GR64:$src1, GR64:$src2))], IIC_BT_RR>, TB;
1471 // Unlike with the register+register form, the memory+register form of the
1472 // bt instruction does not ignore the high bits of the index. From ISel's
1473 // perspective, this is pretty bizarre. Make these instructions disassembly
1476 let mayLoad = 1, hasSideEffects = 0, SchedRW = [WriteALULd] in {
1477 def BT16mr : I<0xA3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1478 "bt{w}\t{$src2, $src1|$src1, $src2}",
1479 // [(X86bt (loadi16 addr:$src1), GR16:$src2),
1480 // (implicit EFLAGS)]
1482 >, OpSize16, TB, Requires<[FastBTMem]>;
1483 def BT32mr : I<0xA3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1484 "bt{l}\t{$src2, $src1|$src1, $src2}",
1485 // [(X86bt (loadi32 addr:$src1), GR32:$src2),
1486 // (implicit EFLAGS)]
1488 >, OpSize32, TB, Requires<[FastBTMem]>;
1489 def BT64mr : RI<0xA3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1490 "bt{q}\t{$src2, $src1|$src1, $src2}",
1491 // [(X86bt (loadi64 addr:$src1), GR64:$src2),
1492 // (implicit EFLAGS)]
1497 let SchedRW = [WriteALU] in {
1498 def BT16ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1499 "bt{w}\t{$src2, $src1|$src1, $src2}",
1500 [(set EFLAGS, (X86bt GR16:$src1, i16immSExt8:$src2))],
1501 IIC_BT_RI>, OpSize16, TB;
1502 def BT32ri8 : Ii8<0xBA, MRM4r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1503 "bt{l}\t{$src2, $src1|$src1, $src2}",
1504 [(set EFLAGS, (X86bt GR32:$src1, i32immSExt8:$src2))],
1505 IIC_BT_RI>, OpSize32, TB;
1506 def BT64ri8 : RIi8<0xBA, MRM4r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1507 "bt{q}\t{$src2, $src1|$src1, $src2}",
1508 [(set EFLAGS, (X86bt GR64:$src1, i64immSExt8:$src2))],
1512 // Note that these instructions don't need FastBTMem because that
1513 // only applies when the other operand is in a register. When it's
1514 // an immediate, bt is still fast.
1515 let SchedRW = [WriteALU] in {
1516 def BT16mi8 : Ii8<0xBA, MRM4m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1517 "bt{w}\t{$src2, $src1|$src1, $src2}",
1518 [(set EFLAGS, (X86bt (loadi16 addr:$src1), i16immSExt8:$src2))
1519 ], IIC_BT_MI>, OpSize16, TB;
1520 def BT32mi8 : Ii8<0xBA, MRM4m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1521 "bt{l}\t{$src2, $src1|$src1, $src2}",
1522 [(set EFLAGS, (X86bt (loadi32 addr:$src1), i32immSExt8:$src2))
1523 ], IIC_BT_MI>, OpSize32, TB;
1524 def BT64mi8 : RIi8<0xBA, MRM4m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1525 "bt{q}\t{$src2, $src1|$src1, $src2}",
1526 [(set EFLAGS, (X86bt (loadi64 addr:$src1),
1527 i64immSExt8:$src2))], IIC_BT_MI>, TB;
1530 let hasSideEffects = 0 in {
1531 let SchedRW = [WriteALU] in {
1532 def BTC16rr : I<0xBB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1533 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1535 def BTC32rr : I<0xBB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1536 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1538 def BTC64rr : RI<0xBB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1539 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1542 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1543 def BTC16mr : I<0xBB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1544 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1546 def BTC32mr : I<0xBB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1547 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1549 def BTC64mr : RI<0xBB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1550 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1553 let SchedRW = [WriteALU] in {
1554 def BTC16ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1555 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1557 def BTC32ri8 : Ii8<0xBA, MRM7r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1558 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1560 def BTC64ri8 : RIi8<0xBA, MRM7r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1561 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1564 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1565 def BTC16mi8 : Ii8<0xBA, MRM7m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1566 "btc{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1568 def BTC32mi8 : Ii8<0xBA, MRM7m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1569 "btc{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1571 def BTC64mi8 : RIi8<0xBA, MRM7m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1572 "btc{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1575 let SchedRW = [WriteALU] in {
1576 def BTR16rr : I<0xB3, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1577 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1579 def BTR32rr : I<0xB3, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1580 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1582 def BTR64rr : RI<0xB3, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1583 "btr{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
1586 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1587 def BTR16mr : I<0xB3, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1588 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1590 def BTR32mr : I<0xB3, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1591 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1593 def BTR64mr : RI<0xB3, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1594 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1597 let SchedRW = [WriteALU] in {
1598 def BTR16ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1599 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1601 def BTR32ri8 : Ii8<0xBA, MRM6r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1602 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1604 def BTR64ri8 : RIi8<0xBA, MRM6r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1605 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1608 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1609 def BTR16mi8 : Ii8<0xBA, MRM6m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1610 "btr{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1612 def BTR32mi8 : Ii8<0xBA, MRM6m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1613 "btr{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1615 def BTR64mi8 : RIi8<0xBA, MRM6m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1616 "btr{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1619 let SchedRW = [WriteALU] in {
1620 def BTS16rr : I<0xAB, MRMDestReg, (outs), (ins GR16:$src1, GR16:$src2),
1621 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1623 def BTS32rr : I<0xAB, MRMDestReg, (outs), (ins GR32:$src1, GR32:$src2),
1624 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>,
1626 def BTS64rr : RI<0xAB, MRMDestReg, (outs), (ins GR64:$src1, GR64:$src2),
1627 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RR>, TB;
1630 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1631 def BTS16mr : I<0xAB, MRMDestMem, (outs), (ins i16mem:$src1, GR16:$src2),
1632 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1634 def BTS32mr : I<0xAB, MRMDestMem, (outs), (ins i32mem:$src1, GR32:$src2),
1635 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>,
1637 def BTS64mr : RI<0xAB, MRMDestMem, (outs), (ins i64mem:$src1, GR64:$src2),
1638 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MR>, TB;
1641 let SchedRW = [WriteALU] in {
1642 def BTS16ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR16:$src1, i16i8imm:$src2),
1643 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1645 def BTS32ri8 : Ii8<0xBA, MRM5r, (outs), (ins GR32:$src1, i32i8imm:$src2),
1646 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>,
1648 def BTS64ri8 : RIi8<0xBA, MRM5r, (outs), (ins GR64:$src1, i64i8imm:$src2),
1649 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_RI>, TB;
1652 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1653 def BTS16mi8 : Ii8<0xBA, MRM5m, (outs), (ins i16mem:$src1, i16i8imm:$src2),
1654 "bts{w}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1656 def BTS32mi8 : Ii8<0xBA, MRM5m, (outs), (ins i32mem:$src1, i32i8imm:$src2),
1657 "bts{l}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>,
1659 def BTS64mi8 : RIi8<0xBA, MRM5m, (outs), (ins i64mem:$src1, i64i8imm:$src2),
1660 "bts{q}\t{$src2, $src1|$src1, $src2}", [], IIC_BTX_MI>, TB;
1662 } // hasSideEffects = 0
1663 } // Defs = [EFLAGS]
1666 //===----------------------------------------------------------------------===//
1670 // Atomic swap. These are just normal xchg instructions. But since a memory
1671 // operand is referenced, the atomicity is ensured.
1672 multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag,
1673 InstrItinClass itin> {
1674 let Constraints = "$val = $dst", SchedRW = [WriteALULd, WriteRMW] in {
1675 def NAME#8rm : I<opc8, MRMSrcMem, (outs GR8:$dst),
1676 (ins GR8:$val, i8mem:$ptr),
1677 !strconcat(mnemonic, "{b}\t{$val, $ptr|$ptr, $val}"),
1680 (!cast<PatFrag>(frag # "_8") addr:$ptr, GR8:$val))],
1682 def NAME#16rm : I<opc, MRMSrcMem, (outs GR16:$dst),
1683 (ins GR16:$val, i16mem:$ptr),
1684 !strconcat(mnemonic, "{w}\t{$val, $ptr|$ptr, $val}"),
1687 (!cast<PatFrag>(frag # "_16") addr:$ptr, GR16:$val))],
1689 def NAME#32rm : I<opc, MRMSrcMem, (outs GR32:$dst),
1690 (ins GR32:$val, i32mem:$ptr),
1691 !strconcat(mnemonic, "{l}\t{$val, $ptr|$ptr, $val}"),
1694 (!cast<PatFrag>(frag # "_32") addr:$ptr, GR32:$val))],
1696 def NAME#64rm : RI<opc, MRMSrcMem, (outs GR64:$dst),
1697 (ins GR64:$val, i64mem:$ptr),
1698 !strconcat(mnemonic, "{q}\t{$val, $ptr|$ptr, $val}"),
1701 (!cast<PatFrag>(frag # "_64") addr:$ptr, GR64:$val))],
1706 defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap", IIC_XCHG_MEM>;
1708 // Swap between registers.
1709 let SchedRW = [WriteALU] in {
1710 let Constraints = "$val = $dst" in {
1711 def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst), (ins GR8:$val, GR8:$src),
1712 "xchg{b}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1713 def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst), (ins GR16:$val, GR16:$src),
1714 "xchg{w}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1716 def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst), (ins GR32:$val, GR32:$src),
1717 "xchg{l}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>,
1719 def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst), (ins GR64:$val,GR64:$src),
1720 "xchg{q}\t{$val, $src|$src, $val}", [], IIC_XCHG_REG>;
1723 // Swap between EAX and other registers.
1724 let Uses = [AX], Defs = [AX] in
1725 def XCHG16ar : I<0x90, AddRegFrm, (outs), (ins GR16:$src),
1726 "xchg{w}\t{$src, %ax|ax, $src}", [], IIC_XCHG_REG>, OpSize16;
1727 let Uses = [EAX], Defs = [EAX] in
1728 def XCHG32ar : I<0x90, AddRegFrm, (outs), (ins GR32:$src),
1729 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1730 OpSize32, Requires<[Not64BitMode]>;
1731 let Uses = [EAX], Defs = [EAX] in
1732 // Uses GR32_NOAX in 64-bit mode to prevent encoding using the 0x90 NOP encoding.
1733 // xchg %eax, %eax needs to clear upper 32-bits of RAX so is not a NOP.
1734 def XCHG32ar64 : I<0x90, AddRegFrm, (outs), (ins GR32_NOAX:$src),
1735 "xchg{l}\t{$src, %eax|eax, $src}", [], IIC_XCHG_REG>,
1736 OpSize32, Requires<[In64BitMode]>;
1737 let Uses = [RAX], Defs = [RAX] in
1738 def XCHG64ar : RI<0x90, AddRegFrm, (outs), (ins GR64:$src),
1739 "xchg{q}\t{$src, %rax|rax, $src}", [], IIC_XCHG_REG>;
1742 let SchedRW = [WriteALU] in {
1743 def XADD8rr : I<0xC0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1744 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1745 def XADD16rr : I<0xC1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1746 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1748 def XADD32rr : I<0xC1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1749 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB,
1751 def XADD64rr : RI<0xC1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1752 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_REG>, TB;
1755 let mayLoad = 1, mayStore = 1, SchedRW = [WriteALULd, WriteRMW] in {
1756 def XADD8rm : I<0xC0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1757 "xadd{b}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1758 def XADD16rm : I<0xC1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1759 "xadd{w}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1761 def XADD32rm : I<0xC1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1762 "xadd{l}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB,
1764 def XADD64rm : RI<0xC1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1765 "xadd{q}\t{$src, $dst|$dst, $src}", [], IIC_XADD_MEM>, TB;
1769 let SchedRW = [WriteALU] in {
1770 def CMPXCHG8rr : I<0xB0, MRMDestReg, (outs GR8:$dst), (ins GR8:$src),
1771 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1772 IIC_CMPXCHG_REG8>, TB;
1773 def CMPXCHG16rr : I<0xB1, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1774 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1775 IIC_CMPXCHG_REG>, TB, OpSize16;
1776 def CMPXCHG32rr : I<0xB1, MRMDestReg, (outs GR32:$dst), (ins GR32:$src),
1777 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1778 IIC_CMPXCHG_REG>, TB, OpSize32;
1779 def CMPXCHG64rr : RI<0xB1, MRMDestReg, (outs GR64:$dst), (ins GR64:$src),
1780 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1781 IIC_CMPXCHG_REG>, TB;
1784 let SchedRW = [WriteALULd, WriteRMW] in {
1785 let mayLoad = 1, mayStore = 1 in {
1786 def CMPXCHG8rm : I<0xB0, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
1787 "cmpxchg{b}\t{$src, $dst|$dst, $src}", [],
1788 IIC_CMPXCHG_MEM8>, TB;
1789 def CMPXCHG16rm : I<0xB1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1790 "cmpxchg{w}\t{$src, $dst|$dst, $src}", [],
1791 IIC_CMPXCHG_MEM>, TB, OpSize16;
1792 def CMPXCHG32rm : I<0xB1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1793 "cmpxchg{l}\t{$src, $dst|$dst, $src}", [],
1794 IIC_CMPXCHG_MEM>, TB, OpSize32;
1795 def CMPXCHG64rm : RI<0xB1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1796 "cmpxchg{q}\t{$src, $dst|$dst, $src}", [],
1797 IIC_CMPXCHG_MEM>, TB;
1800 let Defs = [EAX, EDX, EFLAGS], Uses = [EAX, EBX, ECX, EDX] in
1801 def CMPXCHG8B : I<0xC7, MRM1m, (outs), (ins i64mem:$dst),
1802 "cmpxchg8b\t$dst", [], IIC_CMPXCHG_8B>, TB;
1804 let Defs = [RAX, RDX, EFLAGS], Uses = [RAX, RBX, RCX, RDX] in
1805 def CMPXCHG16B : RI<0xC7, MRM1m, (outs), (ins i128mem:$dst),
1806 "cmpxchg16b\t$dst", [], IIC_CMPXCHG_16B>,
1807 TB, Requires<[HasCmpxchg16b]>;
1811 // Lock instruction prefix
1812 def LOCK_PREFIX : I<0xF0, RawFrm, (outs), (ins), "lock", []>;
1814 // Rex64 instruction prefix
1815 def REX64_PREFIX : I<0x48, RawFrm, (outs), (ins), "rex64", []>,
1816 Requires<[In64BitMode]>;
1818 // Data16 instruction prefix
1819 def DATA16_PREFIX : I<0x66, RawFrm, (outs), (ins), "data16", []>;
1821 // Repeat string operation instruction prefixes
1822 // These uses the DF flag in the EFLAGS register to inc or dec ECX
1823 let Defs = [ECX], Uses = [ECX,EFLAGS] in {
1824 // Repeat (used with INS, OUTS, MOVS, LODS and STOS)
1825 def REP_PREFIX : I<0xF3, RawFrm, (outs), (ins), "rep", []>;
1826 // Repeat while not equal (used with CMPS and SCAS)
1827 def REPNE_PREFIX : I<0xF2, RawFrm, (outs), (ins), "repne", []>;
1831 // String manipulation instructions
1832 let SchedRW = [WriteMicrocoded] in {
1833 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1834 let Defs = [AL,ESI], Uses = [ESI,EFLAGS] in
1835 def LODSB : I<0xAC, RawFrmSrc, (outs), (ins srcidx8:$src),
1836 "lodsb\t{$src, %al|al, $src}", [], IIC_LODS>;
1837 let Defs = [AX,ESI], Uses = [ESI,EFLAGS] in
1838 def LODSW : I<0xAD, RawFrmSrc, (outs), (ins srcidx16:$src),
1839 "lodsw\t{$src, %ax|ax, $src}", [], IIC_LODS>, OpSize16;
1840 let Defs = [EAX,ESI], Uses = [ESI,EFLAGS] in
1841 def LODSL : I<0xAD, RawFrmSrc, (outs), (ins srcidx32:$src),
1842 "lods{l|d}\t{$src, %eax|eax, $src}", [], IIC_LODS>, OpSize32;
1843 let Defs = [RAX,ESI], Uses = [ESI,EFLAGS] in
1844 def LODSQ : RI<0xAD, RawFrmSrc, (outs), (ins srcidx64:$src),
1845 "lodsq\t{$src, %rax|rax, $src}", [], IIC_LODS>;
1848 let SchedRW = [WriteSystem] in {
1849 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1850 let Defs = [ESI], Uses = [DX,ESI,EFLAGS] in {
1851 def OUTSB : I<0x6E, RawFrmSrc, (outs), (ins srcidx8:$src),
1852 "outsb\t{$src, %dx|dx, $src}", [], IIC_OUTS>;
1853 def OUTSW : I<0x6F, RawFrmSrc, (outs), (ins srcidx16:$src),
1854 "outsw\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize16;
1855 def OUTSL : I<0x6F, RawFrmSrc, (outs), (ins srcidx32:$src),
1856 "outs{l|d}\t{$src, %dx|dx, $src}", [], IIC_OUTS>, OpSize32;
1859 // These uses the DF flag in the EFLAGS register to inc or dec EDI and ESI
1860 let Defs = [EDI], Uses = [DX,EDI,EFLAGS] in {
1861 def INSB : I<0x6C, RawFrmDst, (outs dstidx8:$dst), (ins),
1862 "insb\t{%dx, $dst|$dst, dx}", [], IIC_INS>;
1863 def INSW : I<0x6D, RawFrmDst, (outs dstidx16:$dst), (ins),
1864 "insw\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize16;
1865 def INSL : I<0x6D, RawFrmDst, (outs dstidx32:$dst), (ins),
1866 "ins{l|d}\t{%dx, $dst|$dst, dx}", [], IIC_INS>, OpSize32;
1870 // Flag instructions
1871 let SchedRW = [WriteALU] in {
1872 def CLC : I<0xF8, RawFrm, (outs), (ins), "clc", [], IIC_CLC>;
1873 def STC : I<0xF9, RawFrm, (outs), (ins), "stc", [], IIC_STC>;
1874 def CLI : I<0xFA, RawFrm, (outs), (ins), "cli", [], IIC_CLI>;
1875 def STI : I<0xFB, RawFrm, (outs), (ins), "sti", [], IIC_STI>;
1876 def CLD : I<0xFC, RawFrm, (outs), (ins), "cld", [], IIC_CLD>;
1877 def STD : I<0xFD, RawFrm, (outs), (ins), "std", [], IIC_STD>;
1878 def CMC : I<0xF5, RawFrm, (outs), (ins), "cmc", [], IIC_CMC>;
1880 def CLTS : I<0x06, RawFrm, (outs), (ins), "clts", [], IIC_CLTS>, TB;
1883 // Table lookup instructions
1884 def XLAT : I<0xD7, RawFrm, (outs), (ins), "xlatb", [], IIC_XLAT>,
1887 let SchedRW = [WriteMicrocoded] in {
1888 // ASCII Adjust After Addition
1889 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1890 def AAA : I<0x37, RawFrm, (outs), (ins), "aaa", [], IIC_AAA>,
1891 Requires<[Not64BitMode]>;
1893 // ASCII Adjust AX Before Division
1894 // sets AL, AH and EFLAGS and uses AL and AH
1895 def AAD8i8 : Ii8<0xD5, RawFrm, (outs), (ins i8imm:$src),
1896 "aad\t$src", [], IIC_AAD>, Requires<[Not64BitMode]>;
1898 // ASCII Adjust AX After Multiply
1899 // sets AL, AH and EFLAGS and uses AL
1900 def AAM8i8 : Ii8<0xD4, RawFrm, (outs), (ins i8imm:$src),
1901 "aam\t$src", [], IIC_AAM>, Requires<[Not64BitMode]>;
1903 // ASCII Adjust AL After Subtraction - sets
1904 // sets AL, AH and CF and AF of EFLAGS and uses AL and AF of EFLAGS
1905 def AAS : I<0x3F, RawFrm, (outs), (ins), "aas", [], IIC_AAS>,
1906 Requires<[Not64BitMode]>;
1908 // Decimal Adjust AL after Addition
1909 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1910 def DAA : I<0x27, RawFrm, (outs), (ins), "daa", [], IIC_DAA>,
1911 Requires<[Not64BitMode]>;
1913 // Decimal Adjust AL after Subtraction
1914 // sets AL, CF and AF of EFLAGS and uses AL, CF and AF of EFLAGS
1915 def DAS : I<0x2F, RawFrm, (outs), (ins), "das", [], IIC_DAS>,
1916 Requires<[Not64BitMode]>;
1919 let SchedRW = [WriteSystem] in {
1920 // Check Array Index Against Bounds
1921 def BOUNDS16rm : I<0x62, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1922 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize16,
1923 Requires<[Not64BitMode]>;
1924 def BOUNDS32rm : I<0x62, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1925 "bound\t{$src, $dst|$dst, $src}", [], IIC_BOUND>, OpSize32,
1926 Requires<[Not64BitMode]>;
1928 // Adjust RPL Field of Segment Selector
1929 def ARPL16rr : I<0x63, MRMDestReg, (outs GR16:$dst), (ins GR16:$src),
1930 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_REG>,
1931 Requires<[Not64BitMode]>;
1932 def ARPL16mr : I<0x63, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1933 "arpl\t{$src, $dst|$dst, $src}", [], IIC_ARPL_MEM>,
1934 Requires<[Not64BitMode]>;
1937 //===----------------------------------------------------------------------===//
1938 // MOVBE Instructions
1940 let Predicates = [HasMOVBE] in {
1941 let SchedRW = [WriteALULd] in {
1942 def MOVBE16rm : I<0xF0, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
1943 "movbe{w}\t{$src, $dst|$dst, $src}",
1944 [(set GR16:$dst, (bswap (loadi16 addr:$src)))], IIC_MOVBE>,
1946 def MOVBE32rm : I<0xF0, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
1947 "movbe{l}\t{$src, $dst|$dst, $src}",
1948 [(set GR32:$dst, (bswap (loadi32 addr:$src)))], IIC_MOVBE>,
1950 def MOVBE64rm : RI<0xF0, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
1951 "movbe{q}\t{$src, $dst|$dst, $src}",
1952 [(set GR64:$dst, (bswap (loadi64 addr:$src)))], IIC_MOVBE>,
1955 let SchedRW = [WriteStore] in {
1956 def MOVBE16mr : I<0xF1, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
1957 "movbe{w}\t{$src, $dst|$dst, $src}",
1958 [(store (bswap GR16:$src), addr:$dst)], IIC_MOVBE>,
1960 def MOVBE32mr : I<0xF1, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
1961 "movbe{l}\t{$src, $dst|$dst, $src}",
1962 [(store (bswap GR32:$src), addr:$dst)], IIC_MOVBE>,
1964 def MOVBE64mr : RI<0xF1, MRMDestMem, (outs), (ins i64mem:$dst, GR64:$src),
1965 "movbe{q}\t{$src, $dst|$dst, $src}",
1966 [(store (bswap GR64:$src), addr:$dst)], IIC_MOVBE>,
1971 //===----------------------------------------------------------------------===//
1972 // RDRAND Instruction
1974 let Predicates = [HasRDRAND], Defs = [EFLAGS] in {
1975 def RDRAND16r : I<0xC7, MRM6r, (outs GR16:$dst), (ins),
1977 [(set GR16:$dst, EFLAGS, (X86rdrand))]>, OpSize16, TB;
1978 def RDRAND32r : I<0xC7, MRM6r, (outs GR32:$dst), (ins),
1980 [(set GR32:$dst, EFLAGS, (X86rdrand))]>, OpSize32, TB;
1981 def RDRAND64r : RI<0xC7, MRM6r, (outs GR64:$dst), (ins),
1983 [(set GR64:$dst, EFLAGS, (X86rdrand))]>, TB;
1986 //===----------------------------------------------------------------------===//
1987 // RDSEED Instruction
1989 let Predicates = [HasRDSEED], Defs = [EFLAGS] in {
1990 def RDSEED16r : I<0xC7, MRM7r, (outs GR16:$dst), (ins),
1992 [(set GR16:$dst, EFLAGS, (X86rdseed))]>, OpSize16, TB;
1993 def RDSEED32r : I<0xC7, MRM7r, (outs GR32:$dst), (ins),
1995 [(set GR32:$dst, EFLAGS, (X86rdseed))]>, OpSize32, TB;
1996 def RDSEED64r : RI<0xC7, MRM7r, (outs GR64:$dst), (ins),
1998 [(set GR64:$dst, EFLAGS, (X86rdseed))]>, TB;
2001 //===----------------------------------------------------------------------===//
2002 // LZCNT Instruction
2004 let Predicates = [HasLZCNT], Defs = [EFLAGS] in {
2005 def LZCNT16rr : I<0xBD, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
2006 "lzcnt{w}\t{$src, $dst|$dst, $src}",
2007 [(set GR16:$dst, (ctlz GR16:$src)), (implicit EFLAGS)]>, XS,
2009 def LZCNT16rm : I<0xBD, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
2010 "lzcnt{w}\t{$src, $dst|$dst, $src}",
2011 [(set GR16:$dst, (ctlz (loadi16 addr:$src))),
2012 (implicit EFLAGS)]>, XS, OpSize16;
2014 def LZCNT32rr : I<0xBD, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2015 "lzcnt{l}\t{$src, $dst|$dst, $src}",
2016 [(set GR32:$dst, (ctlz GR32:$src)), (implicit EFLAGS)]>, XS,
2018 def LZCNT32rm : I<0xBD, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2019 "lzcnt{l}\t{$src, $dst|$dst, $src}",
2020 [(set GR32:$dst, (ctlz (loadi32 addr:$src))),
2021 (implicit EFLAGS)]>, XS, OpSize32;
2023 def LZCNT64rr : RI<0xBD, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2024 "lzcnt{q}\t{$src, $dst|$dst, $src}",
2025 [(set GR64:$dst, (ctlz GR64:$src)), (implicit EFLAGS)]>,
2027 def LZCNT64rm : RI<0xBD, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2028 "lzcnt{q}\t{$src, $dst|$dst, $src}",
2029 [(set GR64:$dst, (ctlz (loadi64 addr:$src))),
2030 (implicit EFLAGS)]>, XS;
2033 let Predicates = [HasLZCNT] in {
2034 def : Pat<(X86cmov (ctlz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2035 (X86cmp GR16:$src, (i16 0))),
2036 (LZCNT16rr GR16:$src)>;
2037 def : Pat<(X86cmov (ctlz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2038 (X86cmp GR32:$src, (i32 0))),
2039 (LZCNT32rr GR32:$src)>;
2040 def : Pat<(X86cmov (ctlz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2041 (X86cmp GR64:$src, (i64 0))),
2042 (LZCNT64rr GR64:$src)>;
2043 def : Pat<(X86cmov (i16 16), (ctlz GR16:$src), (X86_COND_E_OR_NE),
2044 (X86cmp GR16:$src, (i16 0))),
2045 (LZCNT16rr GR16:$src)>;
2046 def : Pat<(X86cmov (i32 32), (ctlz GR32:$src), (X86_COND_E_OR_NE),
2047 (X86cmp GR32:$src, (i32 0))),
2048 (LZCNT32rr GR32:$src)>;
2049 def : Pat<(X86cmov (i64 64), (ctlz GR64:$src), (X86_COND_E_OR_NE),
2050 (X86cmp GR64:$src, (i64 0))),
2051 (LZCNT64rr GR64:$src)>;
2053 def : Pat<(X86cmov (ctlz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2054 (X86cmp (loadi16 addr:$src), (i16 0))),
2055 (LZCNT16rm addr:$src)>;
2056 def : Pat<(X86cmov (ctlz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2057 (X86cmp (loadi32 addr:$src), (i32 0))),
2058 (LZCNT32rm addr:$src)>;
2059 def : Pat<(X86cmov (ctlz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2060 (X86cmp (loadi64 addr:$src), (i64 0))),
2061 (LZCNT64rm addr:$src)>;
2062 def : Pat<(X86cmov (i16 16), (ctlz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2063 (X86cmp (loadi16 addr:$src), (i16 0))),
2064 (LZCNT16rm addr:$src)>;
2065 def : Pat<(X86cmov (i32 32), (ctlz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2066 (X86cmp (loadi32 addr:$src), (i32 0))),
2067 (LZCNT32rm addr:$src)>;
2068 def : Pat<(X86cmov (i64 64), (ctlz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2069 (X86cmp (loadi64 addr:$src), (i64 0))),
2070 (LZCNT64rm addr:$src)>;
2073 //===----------------------------------------------------------------------===//
2076 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2077 def TZCNT16rr : I<0xBC, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
2078 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2079 [(set GR16:$dst, (cttz GR16:$src)), (implicit EFLAGS)]>, XS,
2081 def TZCNT16rm : I<0xBC, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
2082 "tzcnt{w}\t{$src, $dst|$dst, $src}",
2083 [(set GR16:$dst, (cttz (loadi16 addr:$src))),
2084 (implicit EFLAGS)]>, XS, OpSize16;
2086 def TZCNT32rr : I<0xBC, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
2087 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2088 [(set GR32:$dst, (cttz GR32:$src)), (implicit EFLAGS)]>, XS,
2090 def TZCNT32rm : I<0xBC, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
2091 "tzcnt{l}\t{$src, $dst|$dst, $src}",
2092 [(set GR32:$dst, (cttz (loadi32 addr:$src))),
2093 (implicit EFLAGS)]>, XS, OpSize32;
2095 def TZCNT64rr : RI<0xBC, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
2096 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2097 [(set GR64:$dst, (cttz GR64:$src)), (implicit EFLAGS)]>,
2099 def TZCNT64rm : RI<0xBC, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
2100 "tzcnt{q}\t{$src, $dst|$dst, $src}",
2101 [(set GR64:$dst, (cttz (loadi64 addr:$src))),
2102 (implicit EFLAGS)]>, XS;
2105 multiclass bmi_bls<string mnemonic, Format RegMRM, Format MemMRM,
2106 RegisterClass RC, X86MemOperand x86memop> {
2107 let hasSideEffects = 0 in {
2108 def rr : I<0xF3, RegMRM, (outs RC:$dst), (ins RC:$src),
2109 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2112 def rm : I<0xF3, MemMRM, (outs RC:$dst), (ins x86memop:$src),
2113 !strconcat(mnemonic, "\t{$src, $dst|$dst, $src}"),
2118 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2119 defm BLSR32 : bmi_bls<"blsr{l}", MRM1r, MRM1m, GR32, i32mem>;
2120 defm BLSR64 : bmi_bls<"blsr{q}", MRM1r, MRM1m, GR64, i64mem>, VEX_W;
2121 defm BLSMSK32 : bmi_bls<"blsmsk{l}", MRM2r, MRM2m, GR32, i32mem>;
2122 defm BLSMSK64 : bmi_bls<"blsmsk{q}", MRM2r, MRM2m, GR64, i64mem>, VEX_W;
2123 defm BLSI32 : bmi_bls<"blsi{l}", MRM3r, MRM3m, GR32, i32mem>;
2124 defm BLSI64 : bmi_bls<"blsi{q}", MRM3r, MRM3m, GR64, i64mem>, VEX_W;
2127 //===----------------------------------------------------------------------===//
2128 // Pattern fragments to auto generate BMI instructions.
2129 //===----------------------------------------------------------------------===//
2131 let Predicates = [HasBMI] in {
2132 // FIXME: patterns for the load versions are not implemented
2133 def : Pat<(and GR32:$src, (add GR32:$src, -1)),
2134 (BLSR32rr GR32:$src)>;
2135 def : Pat<(and GR64:$src, (add GR64:$src, -1)),
2136 (BLSR64rr GR64:$src)>;
2138 def : Pat<(xor GR32:$src, (add GR32:$src, -1)),
2139 (BLSMSK32rr GR32:$src)>;
2140 def : Pat<(xor GR64:$src, (add GR64:$src, -1)),
2141 (BLSMSK64rr GR64:$src)>;
2143 def : Pat<(and GR32:$src, (ineg GR32:$src)),
2144 (BLSI32rr GR32:$src)>;
2145 def : Pat<(and GR64:$src, (ineg GR64:$src)),
2146 (BLSI64rr GR64:$src)>;
2149 let Predicates = [HasBMI] in {
2150 def : Pat<(X86cmov (cttz GR16:$src), (i16 16), (X86_COND_E_OR_NE),
2151 (X86cmp GR16:$src, (i16 0))),
2152 (TZCNT16rr GR16:$src)>;
2153 def : Pat<(X86cmov (cttz GR32:$src), (i32 32), (X86_COND_E_OR_NE),
2154 (X86cmp GR32:$src, (i32 0))),
2155 (TZCNT32rr GR32:$src)>;
2156 def : Pat<(X86cmov (cttz GR64:$src), (i64 64), (X86_COND_E_OR_NE),
2157 (X86cmp GR64:$src, (i64 0))),
2158 (TZCNT64rr GR64:$src)>;
2159 def : Pat<(X86cmov (i16 16), (cttz GR16:$src), (X86_COND_E_OR_NE),
2160 (X86cmp GR16:$src, (i16 0))),
2161 (TZCNT16rr GR16:$src)>;
2162 def : Pat<(X86cmov (i32 32), (cttz GR32:$src), (X86_COND_E_OR_NE),
2163 (X86cmp GR32:$src, (i32 0))),
2164 (TZCNT32rr GR32:$src)>;
2165 def : Pat<(X86cmov (i64 64), (cttz GR64:$src), (X86_COND_E_OR_NE),
2166 (X86cmp GR64:$src, (i64 0))),
2167 (TZCNT64rr GR64:$src)>;
2169 def : Pat<(X86cmov (cttz (loadi16 addr:$src)), (i16 16), (X86_COND_E_OR_NE),
2170 (X86cmp (loadi16 addr:$src), (i16 0))),
2171 (TZCNT16rm addr:$src)>;
2172 def : Pat<(X86cmov (cttz (loadi32 addr:$src)), (i32 32), (X86_COND_E_OR_NE),
2173 (X86cmp (loadi32 addr:$src), (i32 0))),
2174 (TZCNT32rm addr:$src)>;
2175 def : Pat<(X86cmov (cttz (loadi64 addr:$src)), (i64 64), (X86_COND_E_OR_NE),
2176 (X86cmp (loadi64 addr:$src), (i64 0))),
2177 (TZCNT64rm addr:$src)>;
2178 def : Pat<(X86cmov (i16 16), (cttz (loadi16 addr:$src)), (X86_COND_E_OR_NE),
2179 (X86cmp (loadi16 addr:$src), (i16 0))),
2180 (TZCNT16rm addr:$src)>;
2181 def : Pat<(X86cmov (i32 32), (cttz (loadi32 addr:$src)), (X86_COND_E_OR_NE),
2182 (X86cmp (loadi32 addr:$src), (i32 0))),
2183 (TZCNT32rm addr:$src)>;
2184 def : Pat<(X86cmov (i64 64), (cttz (loadi64 addr:$src)), (X86_COND_E_OR_NE),
2185 (X86cmp (loadi64 addr:$src), (i64 0))),
2186 (TZCNT64rm addr:$src)>;
2190 multiclass bmi_bextr_bzhi<bits<8> opc, string mnemonic, RegisterClass RC,
2191 X86MemOperand x86memop, Intrinsic Int,
2193 def rr : I<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2194 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2195 [(set RC:$dst, (Int RC:$src1, RC:$src2)), (implicit EFLAGS)]>,
2197 def rm : I<opc, MRMSrcMem, (outs RC:$dst), (ins x86memop:$src1, RC:$src2),
2198 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2199 [(set RC:$dst, (Int (ld_frag addr:$src1), RC:$src2)),
2200 (implicit EFLAGS)]>, T8PS, VEX_4VOp3;
2203 let Predicates = [HasBMI], Defs = [EFLAGS] in {
2204 defm BEXTR32 : bmi_bextr_bzhi<0xF7, "bextr{l}", GR32, i32mem,
2205 int_x86_bmi_bextr_32, loadi32>;
2206 defm BEXTR64 : bmi_bextr_bzhi<0xF7, "bextr{q}", GR64, i64mem,
2207 int_x86_bmi_bextr_64, loadi64>, VEX_W;
2210 let Predicates = [HasBMI2], Defs = [EFLAGS] in {
2211 defm BZHI32 : bmi_bextr_bzhi<0xF5, "bzhi{l}", GR32, i32mem,
2212 int_x86_bmi_bzhi_32, loadi32>;
2213 defm BZHI64 : bmi_bextr_bzhi<0xF5, "bzhi{q}", GR64, i64mem,
2214 int_x86_bmi_bzhi_64, loadi64>, VEX_W;
2218 def CountTrailingOnes : SDNodeXForm<imm, [{
2219 // Count the trailing ones in the immediate.
2220 return getI8Imm(CountTrailingOnes_64(N->getZExtValue()));
2223 def BZHIMask : ImmLeaf<i64, [{
2224 return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
2227 let Predicates = [HasBMI2] in {
2228 def : Pat<(and GR64:$src, BZHIMask:$mask),
2229 (BZHI64rr GR64:$src,
2230 (INSERT_SUBREG (i64 (IMPLICIT_DEF)),
2231 (MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
2233 def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
2234 (BZHI32rr GR32:$src,
2235 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2237 def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
2238 (BZHI32rm addr:$src,
2239 (INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2241 def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
2242 (BZHI64rr GR64:$src,
2243 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2245 def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
2246 (BZHI64rm addr:$src,
2247 (INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
2250 let Predicates = [HasBMI] in {
2251 def : Pat<(X86bextr GR32:$src1, GR32:$src2),
2252 (BEXTR32rr GR32:$src1, GR32:$src2)>;
2253 def : Pat<(X86bextr (loadi32 addr:$src1), GR32:$src2),
2254 (BEXTR32rm addr:$src1, GR32:$src2)>;
2255 def : Pat<(X86bextr GR64:$src1, GR64:$src2),
2256 (BEXTR64rr GR64:$src1, GR64:$src2)>;
2257 def : Pat<(X86bextr (loadi64 addr:$src1), GR64:$src2),
2258 (BEXTR64rm addr:$src1, GR64:$src2)>;
2261 multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC,
2262 X86MemOperand x86memop, Intrinsic Int,
2264 def rr : I<0xF5, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, RC:$src2),
2265 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2266 [(set RC:$dst, (Int RC:$src1, RC:$src2))]>,
2268 def rm : I<0xF5, MRMSrcMem, (outs RC:$dst), (ins RC:$src1, x86memop:$src2),
2269 !strconcat(mnemonic, "\t{$src2, $src1, $dst|$dst, $src1, $src2}"),
2270 [(set RC:$dst, (Int RC:$src1, (ld_frag addr:$src2)))]>, VEX_4V;
2273 let Predicates = [HasBMI2] in {
2274 defm PDEP32 : bmi_pdep_pext<"pdep{l}", GR32, i32mem,
2275 int_x86_bmi_pdep_32, loadi32>, T8XD;
2276 defm PDEP64 : bmi_pdep_pext<"pdep{q}", GR64, i64mem,
2277 int_x86_bmi_pdep_64, loadi64>, T8XD, VEX_W;
2278 defm PEXT32 : bmi_pdep_pext<"pext{l}", GR32, i32mem,
2279 int_x86_bmi_pext_32, loadi32>, T8XS;
2280 defm PEXT64 : bmi_pdep_pext<"pext{q}", GR64, i64mem,
2281 int_x86_bmi_pext_64, loadi64>, T8XS, VEX_W;
2284 //===----------------------------------------------------------------------===//
2287 let Predicates = [HasTBM], Defs = [EFLAGS] in {
2289 multiclass tbm_ternary_imm_intr<bits<8> opc, RegisterClass RC, string OpcodeStr,
2290 X86MemOperand x86memop, PatFrag ld_frag,
2291 Intrinsic Int, Operand immtype,
2292 SDPatternOperator immoperator> {
2293 def ri : Ii32<opc, MRMSrcReg, (outs RC:$dst), (ins RC:$src1, immtype:$cntl),
2294 !strconcat(OpcodeStr,
2295 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2296 [(set RC:$dst, (Int RC:$src1, immoperator:$cntl))]>,
2298 def mi : Ii32<opc, MRMSrcMem, (outs RC:$dst),
2299 (ins x86memop:$src1, immtype:$cntl),
2300 !strconcat(OpcodeStr,
2301 "\t{$cntl, $src1, $dst|$dst, $src1, $cntl}"),
2302 [(set RC:$dst, (Int (ld_frag addr:$src1), immoperator:$cntl))]>,
2306 defm BEXTRI32 : tbm_ternary_imm_intr<0x10, GR32, "bextr", i32mem, loadi32,
2307 int_x86_tbm_bextri_u32, i32imm, imm>;
2308 let ImmT = Imm32S in
2309 defm BEXTRI64 : tbm_ternary_imm_intr<0x10, GR64, "bextr", i64mem, loadi64,
2310 int_x86_tbm_bextri_u64, i64i32imm,
2311 i64immSExt32>, VEX_W;
2313 multiclass tbm_binary_rm<bits<8> opc, Format FormReg, Format FormMem,
2314 RegisterClass RC, string OpcodeStr,
2315 X86MemOperand x86memop, PatFrag ld_frag> {
2316 let hasSideEffects = 0 in {
2317 def rr : I<opc, FormReg, (outs RC:$dst), (ins RC:$src),
2318 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2321 def rm : I<opc, FormMem, (outs RC:$dst), (ins x86memop:$src),
2322 !strconcat(OpcodeStr,"\t{$src, $dst|$dst, $src}"),
2327 multiclass tbm_binary_intr<bits<8> opc, string OpcodeStr,
2328 Format FormReg, Format FormMem> {
2329 defm NAME#32 : tbm_binary_rm<opc, FormReg, FormMem, GR32, OpcodeStr, i32mem,
2331 defm NAME#64 : tbm_binary_rm<opc, FormReg, FormMem, GR64, OpcodeStr, i64mem,
2335 defm BLCFILL : tbm_binary_intr<0x01, "blcfill", MRM1r, MRM1m>;
2336 defm BLCI : tbm_binary_intr<0x02, "blci", MRM6r, MRM6m>;
2337 defm BLCIC : tbm_binary_intr<0x01, "blcic", MRM5r, MRM5m>;
2338 defm BLCMSK : tbm_binary_intr<0x02, "blcmsk", MRM1r, MRM1m>;
2339 defm BLCS : tbm_binary_intr<0x01, "blcs", MRM3r, MRM3m>;
2340 defm BLSFILL : tbm_binary_intr<0x01, "blsfill", MRM2r, MRM2m>;
2341 defm BLSIC : tbm_binary_intr<0x01, "blsic", MRM6r, MRM6m>;
2342 defm T1MSKC : tbm_binary_intr<0x01, "t1mskc", MRM7r, MRM7m>;
2343 defm TZMSK : tbm_binary_intr<0x01, "tzmsk", MRM4r, MRM4m>;
2346 //===----------------------------------------------------------------------===//
2347 // Pattern fragments to auto generate TBM instructions.
2348 //===----------------------------------------------------------------------===//
2350 let Predicates = [HasTBM] in {
2351 def : Pat<(X86bextr GR32:$src1, (i32 imm:$src2)),
2352 (BEXTRI32ri GR32:$src1, imm:$src2)>;
2353 def : Pat<(X86bextr (loadi32 addr:$src1), (i32 imm:$src2)),
2354 (BEXTRI32mi addr:$src1, imm:$src2)>;
2355 def : Pat<(X86bextr GR64:$src1, i64immSExt32:$src2),
2356 (BEXTRI64ri GR64:$src1, i64immSExt32:$src2)>;
2357 def : Pat<(X86bextr (loadi64 addr:$src1), i64immSExt32:$src2),
2358 (BEXTRI64mi addr:$src1, i64immSExt32:$src2)>;
2360 // FIXME: patterns for the load versions are not implemented
2361 def : Pat<(and GR32:$src, (add GR32:$src, 1)),
2362 (BLCFILL32rr GR32:$src)>;
2363 def : Pat<(and GR64:$src, (add GR64:$src, 1)),
2364 (BLCFILL64rr GR64:$src)>;
2366 def : Pat<(or GR32:$src, (not (add GR32:$src, 1))),
2367 (BLCI32rr GR32:$src)>;
2368 def : Pat<(or GR64:$src, (not (add GR64:$src, 1))),
2369 (BLCI64rr GR64:$src)>;
2371 // Extra patterns because opt can optimize the above patterns to this.
2372 def : Pat<(or GR32:$src, (sub -2, GR32:$src)),
2373 (BLCI32rr GR32:$src)>;
2374 def : Pat<(or GR64:$src, (sub -2, GR64:$src)),
2375 (BLCI64rr GR64:$src)>;
2377 def : Pat<(and (not GR32:$src), (add GR32:$src, 1)),
2378 (BLCIC32rr GR32:$src)>;
2379 def : Pat<(and (not GR64:$src), (add GR64:$src, 1)),
2380 (BLCIC64rr GR64:$src)>;
2382 def : Pat<(xor GR32:$src, (add GR32:$src, 1)),
2383 (BLCMSK32rr GR32:$src)>;
2384 def : Pat<(xor GR64:$src, (add GR64:$src, 1)),
2385 (BLCMSK64rr GR64:$src)>;
2387 def : Pat<(or GR32:$src, (add GR32:$src, 1)),
2388 (BLCS32rr GR32:$src)>;
2389 def : Pat<(or GR64:$src, (add GR64:$src, 1)),
2390 (BLCS64rr GR64:$src)>;
2392 def : Pat<(or GR32:$src, (add GR32:$src, -1)),
2393 (BLSFILL32rr GR32:$src)>;
2394 def : Pat<(or GR64:$src, (add GR64:$src, -1)),
2395 (BLSFILL64rr GR64:$src)>;
2397 def : Pat<(or (not GR32:$src), (add GR32:$src, -1)),
2398 (BLSIC32rr GR32:$src)>;
2399 def : Pat<(or (not GR64:$src), (add GR64:$src, -1)),
2400 (BLSIC64rr GR64:$src)>;
2402 def : Pat<(or (not GR32:$src), (add GR32:$src, 1)),
2403 (T1MSKC32rr GR32:$src)>;
2404 def : Pat<(or (not GR64:$src), (add GR64:$src, 1)),
2405 (T1MSKC64rr GR64:$src)>;
2407 def : Pat<(and (not GR32:$src), (add GR32:$src, -1)),
2408 (TZMSK32rr GR32:$src)>;
2409 def : Pat<(and (not GR64:$src), (add GR64:$src, -1)),
2410 (TZMSK64rr GR64:$src)>;
2413 //===----------------------------------------------------------------------===//
2415 //===----------------------------------------------------------------------===//
2417 include "X86InstrArithmetic.td"
2418 include "X86InstrCMovSetCC.td"
2419 include "X86InstrExtension.td"
2420 include "X86InstrControl.td"
2421 include "X86InstrShiftRotate.td"
2423 // X87 Floating Point Stack.
2424 include "X86InstrFPStack.td"
2426 // SIMD support (SSE, MMX and AVX)
2427 include "X86InstrFragmentsSIMD.td"
2429 // FMA - Fused Multiply-Add support (requires FMA)
2430 include "X86InstrFMA.td"
2433 include "X86InstrXOP.td"
2435 // SSE, MMX and 3DNow! vector support.
2436 include "X86InstrSSE.td"
2437 include "X86InstrAVX512.td"
2438 include "X86InstrMMX.td"
2439 include "X86Instr3DNow.td"
2441 include "X86InstrVMX.td"
2442 include "X86InstrSVM.td"
2444 include "X86InstrTSX.td"
2445 include "X86InstrSGX.td"
2447 // System instructions.
2448 include "X86InstrSystem.td"
2450 // Compiler Pseudo Instructions and Pat Patterns
2451 include "X86InstrCompiler.td"
2453 //===----------------------------------------------------------------------===//
2454 // Assembler Mnemonic Aliases
2455 //===----------------------------------------------------------------------===//
2457 def : MnemonicAlias<"call", "callw", "att">, Requires<[In16BitMode]>;
2458 def : MnemonicAlias<"call", "calll", "att">, Requires<[In32BitMode]>;
2459 def : MnemonicAlias<"call", "callq", "att">, Requires<[In64BitMode]>;
2461 def : MnemonicAlias<"cbw", "cbtw", "att">;
2462 def : MnemonicAlias<"cwde", "cwtl", "att">;
2463 def : MnemonicAlias<"cwd", "cwtd", "att">;
2464 def : MnemonicAlias<"cdq", "cltd", "att">;
2465 def : MnemonicAlias<"cdqe", "cltq", "att">;
2466 def : MnemonicAlias<"cqo", "cqto", "att">;
2468 // In 64-bit mode lret maps to lretl; it is not ambiguous with lretq.
2469 def : MnemonicAlias<"lret", "lretw", "att">, Requires<[In16BitMode]>;
2470 def : MnemonicAlias<"lret", "lretl", "att">, Requires<[Not16BitMode]>;
2472 def : MnemonicAlias<"leavel", "leave", "att">, Requires<[Not64BitMode]>;
2473 def : MnemonicAlias<"leaveq", "leave", "att">, Requires<[In64BitMode]>;
2475 def : MnemonicAlias<"loopz", "loope", "att">;
2476 def : MnemonicAlias<"loopnz", "loopne", "att">;
2478 def : MnemonicAlias<"pop", "popw", "att">, Requires<[In16BitMode]>;
2479 def : MnemonicAlias<"pop", "popl", "att">, Requires<[In32BitMode]>;
2480 def : MnemonicAlias<"pop", "popq", "att">, Requires<[In64BitMode]>;
2481 def : MnemonicAlias<"popf", "popfw", "att">, Requires<[In16BitMode]>;
2482 def : MnemonicAlias<"popf", "popfl", "att">, Requires<[In32BitMode]>;
2483 def : MnemonicAlias<"popf", "popfq", "att">, Requires<[In64BitMode]>;
2484 def : MnemonicAlias<"popfd", "popfl", "att">;
2486 // FIXME: This is wrong for "push reg". "push %bx" should turn into pushw in
2487 // all modes. However: "push (addr)" and "push $42" should default to
2488 // pushl/pushq depending on the current mode. Similar for "pop %bx"
2489 def : MnemonicAlias<"push", "pushw", "att">, Requires<[In16BitMode]>;
2490 def : MnemonicAlias<"push", "pushl", "att">, Requires<[In32BitMode]>;
2491 def : MnemonicAlias<"push", "pushq", "att">, Requires<[In64BitMode]>;
2492 def : MnemonicAlias<"pushf", "pushfw", "att">, Requires<[In16BitMode]>;
2493 def : MnemonicAlias<"pushf", "pushfl", "att">, Requires<[In32BitMode]>;
2494 def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>;
2495 def : MnemonicAlias<"pushfd", "pushfl", "att">;
2497 def : MnemonicAlias<"popad", "popal", "intel">, Requires<[Not64BitMode]>;
2498 def : MnemonicAlias<"pushad", "pushal", "intel">, Requires<[Not64BitMode]>;
2499 def : MnemonicAlias<"popa", "popaw", "intel">, Requires<[In16BitMode]>;
2500 def : MnemonicAlias<"pusha", "pushaw", "intel">, Requires<[In16BitMode]>;
2501 def : MnemonicAlias<"popa", "popal", "intel">, Requires<[In32BitMode]>;
2502 def : MnemonicAlias<"pusha", "pushal", "intel">, Requires<[In32BitMode]>;
2504 def : MnemonicAlias<"popa", "popaw", "att">, Requires<[In16BitMode]>;
2505 def : MnemonicAlias<"pusha", "pushaw", "att">, Requires<[In16BitMode]>;
2506 def : MnemonicAlias<"popa", "popal", "att">, Requires<[In32BitMode]>;
2507 def : MnemonicAlias<"pusha", "pushal", "att">, Requires<[In32BitMode]>;
2509 def : MnemonicAlias<"repe", "rep", "att">;
2510 def : MnemonicAlias<"repz", "rep", "att">;
2511 def : MnemonicAlias<"repnz", "repne", "att">;
2513 def : MnemonicAlias<"ret", "retw", "att">, Requires<[In16BitMode]>;
2514 def : MnemonicAlias<"ret", "retl", "att">, Requires<[In32BitMode]>;
2515 def : MnemonicAlias<"ret", "retq", "att">, Requires<[In64BitMode]>;
2517 def : MnemonicAlias<"salb", "shlb", "att">;
2518 def : MnemonicAlias<"salw", "shlw", "att">;
2519 def : MnemonicAlias<"sall", "shll", "att">;
2520 def : MnemonicAlias<"salq", "shlq", "att">;
2522 def : MnemonicAlias<"smovb", "movsb", "att">;
2523 def : MnemonicAlias<"smovw", "movsw", "att">;
2524 def : MnemonicAlias<"smovl", "movsl", "att">;
2525 def : MnemonicAlias<"smovq", "movsq", "att">;
2527 def : MnemonicAlias<"ud2a", "ud2", "att">;
2528 def : MnemonicAlias<"verrw", "verr", "att">;
2530 // System instruction aliases.
2531 def : MnemonicAlias<"iret", "iretw", "att">, Requires<[In16BitMode]>;
2532 def : MnemonicAlias<"iret", "iretl", "att">, Requires<[Not16BitMode]>;
2533 def : MnemonicAlias<"sysret", "sysretl", "att">;
2534 def : MnemonicAlias<"sysexit", "sysexitl", "att">;
2536 def : MnemonicAlias<"lgdt", "lgdtw", "att">, Requires<[In16BitMode]>;
2537 def : MnemonicAlias<"lgdt", "lgdtl", "att">, Requires<[In32BitMode]>;
2538 def : MnemonicAlias<"lgdt", "lgdtq", "att">, Requires<[In64BitMode]>;
2539 def : MnemonicAlias<"lidt", "lidtw", "att">, Requires<[In16BitMode]>;
2540 def : MnemonicAlias<"lidt", "lidtl", "att">, Requires<[In32BitMode]>;
2541 def : MnemonicAlias<"lidt", "lidtq", "att">, Requires<[In64BitMode]>;
2542 def : MnemonicAlias<"sgdt", "sgdtw", "att">, Requires<[In16BitMode]>;
2543 def : MnemonicAlias<"sgdt", "sgdtl", "att">, Requires<[In32BitMode]>;
2544 def : MnemonicAlias<"sgdt", "sgdtq", "att">, Requires<[In64BitMode]>;
2545 def : MnemonicAlias<"sidt", "sidtw", "att">, Requires<[In16BitMode]>;
2546 def : MnemonicAlias<"sidt", "sidtl", "att">, Requires<[In32BitMode]>;
2547 def : MnemonicAlias<"sidt", "sidtq", "att">, Requires<[In64BitMode]>;
2550 // Floating point stack aliases.
2551 def : MnemonicAlias<"fcmovz", "fcmove", "att">;
2552 def : MnemonicAlias<"fcmova", "fcmovnbe", "att">;
2553 def : MnemonicAlias<"fcmovnae", "fcmovb", "att">;
2554 def : MnemonicAlias<"fcmovna", "fcmovbe", "att">;
2555 def : MnemonicAlias<"fcmovae", "fcmovnb", "att">;
2556 def : MnemonicAlias<"fcomip", "fcompi", "att">;
2557 def : MnemonicAlias<"fildq", "fildll", "att">;
2558 def : MnemonicAlias<"fistpq", "fistpll", "att">;
2559 def : MnemonicAlias<"fisttpq", "fisttpll", "att">;
2560 def : MnemonicAlias<"fldcww", "fldcw", "att">;
2561 def : MnemonicAlias<"fnstcww", "fnstcw", "att">;
2562 def : MnemonicAlias<"fnstsww", "fnstsw", "att">;
2563 def : MnemonicAlias<"fucomip", "fucompi", "att">;
2564 def : MnemonicAlias<"fwait", "wait">;
2567 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond,
2569 : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
2570 !strconcat(Prefix, NewCond, Suffix), VariantName>;
2572 /// IntegerCondCodeMnemonicAlias - This multiclass defines a bunch of
2573 /// MnemonicAlias's that canonicalize the condition code in a mnemonic, for
2574 /// example "setz" -> "sete".
2575 multiclass IntegerCondCodeMnemonicAlias<string Prefix, string Suffix,
2577 def C : CondCodeAlias<Prefix, Suffix, "c", "b", V>; // setc -> setb
2578 def Z : CondCodeAlias<Prefix, Suffix, "z" , "e", V>; // setz -> sete
2579 def NA : CondCodeAlias<Prefix, Suffix, "na", "be", V>; // setna -> setbe
2580 def NB : CondCodeAlias<Prefix, Suffix, "nb", "ae", V>; // setnb -> setae
2581 def NC : CondCodeAlias<Prefix, Suffix, "nc", "ae", V>; // setnc -> setae
2582 def NG : CondCodeAlias<Prefix, Suffix, "ng", "le", V>; // setng -> setle
2583 def NL : CondCodeAlias<Prefix, Suffix, "nl", "ge", V>; // setnl -> setge
2584 def NZ : CondCodeAlias<Prefix, Suffix, "nz", "ne", V>; // setnz -> setne
2585 def PE : CondCodeAlias<Prefix, Suffix, "pe", "p", V>; // setpe -> setp
2586 def PO : CondCodeAlias<Prefix, Suffix, "po", "np", V>; // setpo -> setnp
2588 def NAE : CondCodeAlias<Prefix, Suffix, "nae", "b", V>; // setnae -> setb
2589 def NBE : CondCodeAlias<Prefix, Suffix, "nbe", "a", V>; // setnbe -> seta
2590 def NGE : CondCodeAlias<Prefix, Suffix, "nge", "l", V>; // setnge -> setl
2591 def NLE : CondCodeAlias<Prefix, Suffix, "nle", "g", V>; // setnle -> setg
2594 // Aliases for set<CC>
2595 defm : IntegerCondCodeMnemonicAlias<"set", "">;
2596 // Aliases for j<CC>
2597 defm : IntegerCondCodeMnemonicAlias<"j", "">;
2598 // Aliases for cmov<CC>{w,l,q}
2599 defm : IntegerCondCodeMnemonicAlias<"cmov", "w", "att">;
2600 defm : IntegerCondCodeMnemonicAlias<"cmov", "l", "att">;
2601 defm : IntegerCondCodeMnemonicAlias<"cmov", "q", "att">;
2602 // No size suffix for intel-style asm.
2603 defm : IntegerCondCodeMnemonicAlias<"cmov", "", "intel">;
2606 //===----------------------------------------------------------------------===//
2607 // Assembler Instruction Aliases
2608 //===----------------------------------------------------------------------===//
2610 // aad/aam default to base 10 if no operand is specified.
2611 def : InstAlias<"aad", (AAD8i8 10)>;
2612 def : InstAlias<"aam", (AAM8i8 10)>;
2614 // Disambiguate the mem/imm form of bt-without-a-suffix as btl.
2615 // Likewise for btc/btr/bts.
2616 def : InstAlias<"bt {$imm, $mem|$mem, $imm}",
2617 (BT32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2618 def : InstAlias<"btc {$imm, $mem|$mem, $imm}",
2619 (BTC32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2620 def : InstAlias<"btr {$imm, $mem|$mem, $imm}",
2621 (BTR32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2622 def : InstAlias<"bts {$imm, $mem|$mem, $imm}",
2623 (BTS32mi8 i32mem:$mem, i32i8imm:$imm), 0>;
2626 def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg), 0>;
2627 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg), 0>;
2628 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg), 0>;
2629 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg), 0>;
2631 // lods aliases. Accept the destination being omitted because it's implicit
2632 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2633 // in the destination.
2634 def : InstAlias<"lodsb $src", (LODSB srcidx8:$src), 0>;
2635 def : InstAlias<"lodsw $src", (LODSW srcidx16:$src), 0>;
2636 def : InstAlias<"lods{l|d} $src", (LODSL srcidx32:$src), 0>;
2637 def : InstAlias<"lodsq $src", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2638 def : InstAlias<"lods {$src, %al|al, $src}", (LODSB srcidx8:$src), 0>;
2639 def : InstAlias<"lods {$src, %ax|ax, $src}", (LODSW srcidx16:$src), 0>;
2640 def : InstAlias<"lods {$src, %eax|eax, $src}", (LODSL srcidx32:$src), 0>;
2641 def : InstAlias<"lods {$src, %rax|rax, $src}", (LODSQ srcidx64:$src), 0>, Requires<[In64BitMode]>;
2643 // stos aliases. Accept the source being omitted because it's implicit in
2644 // the mnemonic, or the mnemonic suffix being omitted because it's implicit
2646 def : InstAlias<"stosb $dst", (STOSB dstidx8:$dst), 0>;
2647 def : InstAlias<"stosw $dst", (STOSW dstidx16:$dst), 0>;
2648 def : InstAlias<"stos{l|d} $dst", (STOSL dstidx32:$dst), 0>;
2649 def : InstAlias<"stosq $dst", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2650 def : InstAlias<"stos {%al, $dst|$dst, al}", (STOSB dstidx8:$dst), 0>;
2651 def : InstAlias<"stos {%ax, $dst|$dst, ax}", (STOSW dstidx16:$dst), 0>;
2652 def : InstAlias<"stos {%eax, $dst|$dst, eax}", (STOSL dstidx32:$dst), 0>;
2653 def : InstAlias<"stos {%rax, $dst|$dst, rax}", (STOSQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2655 // scas aliases. Accept the destination being omitted because it's implicit
2656 // in the mnemonic, or the mnemonic suffix being omitted because it's implicit
2657 // in the destination.
2658 def : InstAlias<"scasb $dst", (SCASB dstidx8:$dst), 0>;
2659 def : InstAlias<"scasw $dst", (SCASW dstidx16:$dst), 0>;
2660 def : InstAlias<"scas{l|d} $dst", (SCASL dstidx32:$dst), 0>;
2661 def : InstAlias<"scasq $dst", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2662 def : InstAlias<"scas {$dst, %al|al, $dst}", (SCASB dstidx8:$dst), 0>;
2663 def : InstAlias<"scas {$dst, %ax|ax, $dst}", (SCASW dstidx16:$dst), 0>;
2664 def : InstAlias<"scas {$dst, %eax|eax, $dst}", (SCASL dstidx32:$dst), 0>;
2665 def : InstAlias<"scas {$dst, %rax|rax, $dst}", (SCASQ dstidx64:$dst), 0>, Requires<[In64BitMode]>;
2667 // div and idiv aliases for explicit A register.
2668 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8r GR8 :$src)>;
2669 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16r GR16:$src)>;
2670 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32r GR32:$src)>;
2671 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64r GR64:$src)>;
2672 def : InstAlias<"div{b}\t{$src, %al|al, $src}", (DIV8m i8mem :$src)>;
2673 def : InstAlias<"div{w}\t{$src, %ax|ax, $src}", (DIV16m i16mem:$src)>;
2674 def : InstAlias<"div{l}\t{$src, %eax|eax, $src}", (DIV32m i32mem:$src)>;
2675 def : InstAlias<"div{q}\t{$src, %rax|rax, $src}", (DIV64m i64mem:$src)>;
2676 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8r GR8 :$src)>;
2677 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16r GR16:$src)>;
2678 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32r GR32:$src)>;
2679 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64r GR64:$src)>;
2680 def : InstAlias<"idiv{b}\t{$src, %al|al, $src}", (IDIV8m i8mem :$src)>;
2681 def : InstAlias<"idiv{w}\t{$src, %ax|ax, $src}", (IDIV16m i16mem:$src)>;
2682 def : InstAlias<"idiv{l}\t{$src, %eax|eax, $src}", (IDIV32m i32mem:$src)>;
2683 def : InstAlias<"idiv{q}\t{$src, %rax|rax, $src}", (IDIV64m i64mem:$src)>;
2687 // Various unary fpstack operations default to operating on on ST1.
2688 // For example, "fxch" -> "fxch %st(1)"
2689 def : InstAlias<"faddp", (ADD_FPrST0 ST1), 0>;
2690 def : InstAlias<"fsub{|r}p", (SUBR_FPrST0 ST1), 0>;
2691 def : InstAlias<"fsub{r|}p", (SUB_FPrST0 ST1), 0>;
2692 def : InstAlias<"fmulp", (MUL_FPrST0 ST1), 0>;
2693 def : InstAlias<"fdiv{|r}p", (DIVR_FPrST0 ST1), 0>;
2694 def : InstAlias<"fdiv{r|}p", (DIV_FPrST0 ST1), 0>;
2695 def : InstAlias<"fxch", (XCH_F ST1), 0>;
2696 def : InstAlias<"fcom", (COM_FST0r ST1), 0>;
2697 def : InstAlias<"fcomp", (COMP_FST0r ST1), 0>;
2698 def : InstAlias<"fcomi", (COM_FIr ST1), 0>;
2699 def : InstAlias<"fcompi", (COM_FIPr ST1), 0>;
2700 def : InstAlias<"fucom", (UCOM_Fr ST1), 0>;
2701 def : InstAlias<"fucomp", (UCOM_FPr ST1), 0>;
2702 def : InstAlias<"fucomi", (UCOM_FIr ST1), 0>;
2703 def : InstAlias<"fucompi", (UCOM_FIPr ST1), 0>;
2705 // Handle fmul/fadd/fsub/fdiv instructions with explicitly written st(0) op.
2706 // For example, "fadd %st(4), %st(0)" -> "fadd %st(4)". We also disambiguate
2707 // instructions like "fadd %st(0), %st(0)" as "fadd %st(0)" for consistency with
2709 multiclass FpUnaryAlias<string Mnemonic, Instruction Inst, bit EmitAlias = 1> {
2710 def : InstAlias<!strconcat(Mnemonic, "\t{$op, %st(0)|st(0), $op}"),
2711 (Inst RST:$op), EmitAlias>;
2712 def : InstAlias<!strconcat(Mnemonic, "\t{%st(0), %st(0)|st(0), st(0)}"),
2713 (Inst ST0), EmitAlias>;
2716 defm : FpUnaryAlias<"fadd", ADD_FST0r>;
2717 defm : FpUnaryAlias<"faddp", ADD_FPrST0, 0>;
2718 defm : FpUnaryAlias<"fsub", SUB_FST0r>;
2719 defm : FpUnaryAlias<"fsub{|r}p", SUBR_FPrST0>;
2720 defm : FpUnaryAlias<"fsubr", SUBR_FST0r>;
2721 defm : FpUnaryAlias<"fsub{r|}p", SUB_FPrST0>;
2722 defm : FpUnaryAlias<"fmul", MUL_FST0r>;
2723 defm : FpUnaryAlias<"fmulp", MUL_FPrST0>;
2724 defm : FpUnaryAlias<"fdiv", DIV_FST0r>;
2725 defm : FpUnaryAlias<"fdiv{|r}p", DIVR_FPrST0>;
2726 defm : FpUnaryAlias<"fdivr", DIVR_FST0r>;
2727 defm : FpUnaryAlias<"fdiv{r|}p", DIV_FPrST0>;
2728 defm : FpUnaryAlias<"fcomi", COM_FIr, 0>;
2729 defm : FpUnaryAlias<"fucomi", UCOM_FIr, 0>;
2730 defm : FpUnaryAlias<"fcompi", COM_FIPr>;
2731 defm : FpUnaryAlias<"fucompi", UCOM_FIPr>;
2734 // Handle "f{mulp,addp} st(0), $op" the same as "f{mulp,addp} $op", since they
2735 // commute. We also allow fdiv[r]p/fsubrp even though they don't commute,
2736 // solely because gas supports it.
2737 def : InstAlias<"faddp\t{%st(0), $op|$op, st(0)}", (ADD_FPrST0 RST:$op), 0>;
2738 def : InstAlias<"fmulp\t{%st(0), $op|$op, st(0)}", (MUL_FPrST0 RST:$op)>;
2739 def : InstAlias<"fsub{|r}p\t{%st(0), $op|$op, st(0)}", (SUBR_FPrST0 RST:$op)>;
2740 def : InstAlias<"fsub{r|}p\t{%st(0), $op|$op, st(0)}", (SUB_FPrST0 RST:$op)>;
2741 def : InstAlias<"fdiv{|r}p\t{%st(0), $op|$op, st(0)}", (DIVR_FPrST0 RST:$op)>;
2742 def : InstAlias<"fdiv{r|}p\t{%st(0), $op|$op, st(0)}", (DIV_FPrST0 RST:$op)>;
2744 // We accept "fnstsw %eax" even though it only writes %ax.
2745 def : InstAlias<"fnstsw\t{%eax|eax}", (FNSTSW16r)>;
2746 def : InstAlias<"fnstsw\t{%al|al}" , (FNSTSW16r)>;
2747 def : InstAlias<"fnstsw" , (FNSTSW16r)>;
2749 // lcall and ljmp aliases. This seems to be an odd mapping in 64-bit mode, but
2750 // this is compatible with what GAS does.
2751 def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2752 def : InstAlias<"ljmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg), 0>, Requires<[Not16BitMode]>;
2753 def : InstAlias<"lcall {*}$dst", (FARCALL32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2754 def : InstAlias<"ljmp {*}$dst", (FARJMP32m opaque48mem:$dst), 0>, Requires<[Not16BitMode]>;
2755 def : InstAlias<"lcall $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2756 def : InstAlias<"ljmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg), 0>, Requires<[In16BitMode]>;
2757 def : InstAlias<"lcall {*}$dst", (FARCALL16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2758 def : InstAlias<"ljmp {*}$dst", (FARJMP16m opaque32mem:$dst), 0>, Requires<[In16BitMode]>;
2760 def : InstAlias<"call {*}$dst", (CALL64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2761 def : InstAlias<"jmp {*}$dst", (JMP64m i64mem:$dst), 0>, Requires<[In64BitMode]>;
2762 def : InstAlias<"call {*}$dst", (CALL32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2763 def : InstAlias<"jmp {*}$dst", (JMP32m i32mem:$dst), 0>, Requires<[In32BitMode]>;
2764 def : InstAlias<"call {*}$dst", (CALL16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2765 def : InstAlias<"jmp {*}$dst", (JMP16m i16mem:$dst), 0>, Requires<[In16BitMode]>;
2768 // "imul <imm>, B" is an alias for "imul <imm>, B, B".
2769 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri GR16:$r, GR16:$r, i16imm:$imm), 0>;
2770 def : InstAlias<"imulw {$imm, $r|$r, $imm}", (IMUL16rri8 GR16:$r, GR16:$r, i16i8imm:$imm), 0>;
2771 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri GR32:$r, GR32:$r, i32imm:$imm), 0>;
2772 def : InstAlias<"imull {$imm, $r|$r, $imm}", (IMUL32rri8 GR32:$r, GR32:$r, i32i8imm:$imm), 0>;
2773 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri32 GR64:$r, GR64:$r, i64i32imm:$imm), 0>;
2774 def : InstAlias<"imulq {$imm, $r|$r, $imm}", (IMUL64rri8 GR64:$r, GR64:$r, i64i8imm:$imm), 0>;
2776 // inb %dx -> inb %al, %dx
2777 def : InstAlias<"inb\t{%dx|dx}", (IN8rr), 0>;
2778 def : InstAlias<"inw\t{%dx|dx}", (IN16rr), 0>;
2779 def : InstAlias<"inl\t{%dx|dx}", (IN32rr), 0>;
2780 def : InstAlias<"inb\t$port", (IN8ri i8imm:$port), 0>;
2781 def : InstAlias<"inw\t$port", (IN16ri i8imm:$port), 0>;
2782 def : InstAlias<"inl\t$port", (IN32ri i8imm:$port), 0>;
2785 // jmp and call aliases for lcall and ljmp. jmp $42,$5 -> ljmp
2786 def : InstAlias<"call $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2787 def : InstAlias<"jmp $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>, Requires<[In16BitMode]>;
2788 def : InstAlias<"call $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2789 def : InstAlias<"jmp $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>, Requires<[Not16BitMode]>;
2790 def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
2791 def : InstAlias<"jmpw $seg, $off", (FARJMP16i i16imm:$off, i16imm:$seg)>;
2792 def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
2793 def : InstAlias<"jmpl $seg, $off", (FARJMP32i i32imm:$off, i16imm:$seg)>;
2795 // Force mov without a suffix with a segment and mem to prefer the 'l' form of
2796 // the move. All segment/mem forms are equivalent, this has the shortest
2798 def : InstAlias<"mov {$mem, $seg|$seg, $mem}", (MOV32sm SEGMENT_REG:$seg, i32mem:$mem), 0>;
2799 def : InstAlias<"mov {$seg, $mem|$mem, $seg}", (MOV32ms i32mem:$mem, SEGMENT_REG:$seg), 0>;
2801 // Match 'movq <largeimm>, <reg>' as an alias for movabsq.
2802 def : InstAlias<"movq {$imm, $reg|$reg, $imm}", (MOV64ri GR64:$reg, i64imm:$imm), 0>;
2804 // Match 'movq GR64, MMX' as an alias for movd.
2805 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2806 (MMX_MOVD64to64rr VR64:$dst, GR64:$src), 0>;
2807 def : InstAlias<"movq {$src, $dst|$dst, $src}",
2808 (MMX_MOVD64from64rr GR64:$dst, VR64:$src), 0>;
2811 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rr8 GR16:$dst, GR8:$src), 0>;
2812 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX16rm8 GR16:$dst, i8mem:$src), 0>;
2813 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr8 GR32:$dst, GR8:$src), 0>;
2814 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX32rr16 GR32:$dst, GR16:$src), 0>;
2815 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr8 GR64:$dst, GR8:$src), 0>;
2816 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr16 GR64:$dst, GR16:$src), 0>;
2817 def : InstAlias<"movsx {$src, $dst|$dst, $src}", (MOVSX64rr32 GR64:$dst, GR32:$src), 0>;
2820 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rr8 GR16:$dst, GR8:$src), 0>;
2821 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX16rm8 GR16:$dst, i8mem:$src), 0>;
2822 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr8 GR32:$dst, GR8:$src), 0>;
2823 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX32rr16 GR32:$dst, GR16:$src), 0>;
2824 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr8_Q GR64:$dst, GR8:$src), 0>;
2825 def : InstAlias<"movzx {$src, $dst|$dst, $src}", (MOVZX64rr16_Q GR64:$dst, GR16:$src), 0>;
2826 // Note: No GR32->GR64 movzx form.
2828 // outb %dx -> outb %al, %dx
2829 def : InstAlias<"outb\t{%dx|dx}", (OUT8rr), 0>;
2830 def : InstAlias<"outw\t{%dx|dx}", (OUT16rr), 0>;
2831 def : InstAlias<"outl\t{%dx|dx}", (OUT32rr), 0>;
2832 def : InstAlias<"outb\t$port", (OUT8ir i8imm:$port), 0>;
2833 def : InstAlias<"outw\t$port", (OUT16ir i8imm:$port), 0>;
2834 def : InstAlias<"outl\t$port", (OUT32ir i8imm:$port), 0>;
2836 // 'sldt <mem>' can be encoded with either sldtw or sldtq with the same
2837 // effect (both store to a 16-bit mem). Force to sldtw to avoid ambiguity
2838 // errors, since its encoding is the most compact.
2839 def : InstAlias<"sldt $mem", (SLDT16m i16mem:$mem), 0>;
2841 // shld/shrd op,op -> shld op, op, CL
2842 def : InstAlias<"shld{w}\t{$r2, $r1|$r1, $r2}", (SHLD16rrCL GR16:$r1, GR16:$r2), 0>;
2843 def : InstAlias<"shld{l}\t{$r2, $r1|$r1, $r2}", (SHLD32rrCL GR32:$r1, GR32:$r2), 0>;
2844 def : InstAlias<"shld{q}\t{$r2, $r1|$r1, $r2}", (SHLD64rrCL GR64:$r1, GR64:$r2), 0>;
2845 def : InstAlias<"shrd{w}\t{$r2, $r1|$r1, $r2}", (SHRD16rrCL GR16:$r1, GR16:$r2), 0>;
2846 def : InstAlias<"shrd{l}\t{$r2, $r1|$r1, $r2}", (SHRD32rrCL GR32:$r1, GR32:$r2), 0>;
2847 def : InstAlias<"shrd{q}\t{$r2, $r1|$r1, $r2}", (SHRD64rrCL GR64:$r1, GR64:$r2), 0>;
2849 def : InstAlias<"shld{w}\t{$reg, $mem|$mem, $reg}", (SHLD16mrCL i16mem:$mem, GR16:$reg), 0>;
2850 def : InstAlias<"shld{l}\t{$reg, $mem|$mem, $reg}", (SHLD32mrCL i32mem:$mem, GR32:$reg), 0>;
2851 def : InstAlias<"shld{q}\t{$reg, $mem|$mem, $reg}", (SHLD64mrCL i64mem:$mem, GR64:$reg), 0>;
2852 def : InstAlias<"shrd{w}\t{$reg, $mem|$mem, $reg}", (SHRD16mrCL i16mem:$mem, GR16:$reg), 0>;
2853 def : InstAlias<"shrd{l}\t{$reg, $mem|$mem, $reg}", (SHRD32mrCL i32mem:$mem, GR32:$reg), 0>;
2854 def : InstAlias<"shrd{q}\t{$reg, $mem|$mem, $reg}", (SHRD64mrCL i64mem:$mem, GR64:$reg), 0>;
2856 /* FIXME: This is disabled because the asm matcher is currently incapable of
2857 * matching a fixed immediate like $1.
2858 // "shl X, $1" is an alias for "shl X".
2859 multiclass ShiftRotateByOneAlias<string Mnemonic, string Opc> {
2860 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2861 (!cast<Instruction>(!strconcat(Opc, "8r1")) GR8:$op)>;
2862 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2863 (!cast<Instruction>(!strconcat(Opc, "16r1")) GR16:$op)>;
2864 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2865 (!cast<Instruction>(!strconcat(Opc, "32r1")) GR32:$op)>;
2866 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2867 (!cast<Instruction>(!strconcat(Opc, "64r1")) GR64:$op)>;
2868 def : InstAlias<!strconcat(Mnemonic, "b $op, $$1"),
2869 (!cast<Instruction>(!strconcat(Opc, "8m1")) i8mem:$op)>;
2870 def : InstAlias<!strconcat(Mnemonic, "w $op, $$1"),
2871 (!cast<Instruction>(!strconcat(Opc, "16m1")) i16mem:$op)>;
2872 def : InstAlias<!strconcat(Mnemonic, "l $op, $$1"),
2873 (!cast<Instruction>(!strconcat(Opc, "32m1")) i32mem:$op)>;
2874 def : InstAlias<!strconcat(Mnemonic, "q $op, $$1"),
2875 (!cast<Instruction>(!strconcat(Opc, "64m1")) i64mem:$op)>;
2878 defm : ShiftRotateByOneAlias<"rcl", "RCL">;
2879 defm : ShiftRotateByOneAlias<"rcr", "RCR">;
2880 defm : ShiftRotateByOneAlias<"rol", "ROL">;
2881 defm : ShiftRotateByOneAlias<"ror", "ROR">;
2884 // test: We accept "testX <reg>, <mem>" and "testX <mem>, <reg>" as synonyms.
2885 def : InstAlias<"test{b}\t{$val, $mem|$mem, $val}",
2886 (TEST8rm GR8 :$val, i8mem :$mem), 0>;
2887 def : InstAlias<"test{w}\t{$val, $mem|$mem, $val}",
2888 (TEST16rm GR16:$val, i16mem:$mem), 0>;
2889 def : InstAlias<"test{l}\t{$val, $mem|$mem, $val}",
2890 (TEST32rm GR32:$val, i32mem:$mem), 0>;
2891 def : InstAlias<"test{q}\t{$val, $mem|$mem, $val}",
2892 (TEST64rm GR64:$val, i64mem:$mem), 0>;
2894 // xchg: We accept "xchgX <reg>, <mem>" and "xchgX <mem>, <reg>" as synonyms.
2895 def : InstAlias<"xchg{b}\t{$mem, $val|$val, $mem}",
2896 (XCHG8rm GR8 :$val, i8mem :$mem), 0>;
2897 def : InstAlias<"xchg{w}\t{$mem, $val|$val, $mem}",
2898 (XCHG16rm GR16:$val, i16mem:$mem), 0>;
2899 def : InstAlias<"xchg{l}\t{$mem, $val|$val, $mem}",
2900 (XCHG32rm GR32:$val, i32mem:$mem), 0>;
2901 def : InstAlias<"xchg{q}\t{$mem, $val|$val, $mem}",
2902 (XCHG64rm GR64:$val, i64mem:$mem), 0>;
2904 // xchg: We accept "xchgX <reg>, %eax" and "xchgX %eax, <reg>" as synonyms.
2905 def : InstAlias<"xchg{w}\t{%ax, $src|$src, ax}", (XCHG16ar GR16:$src), 0>;
2906 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2907 (XCHG32ar GR32:$src), 0>, Requires<[Not64BitMode]>;
2908 def : InstAlias<"xchg{l}\t{%eax, $src|$src, eax}",
2909 (XCHG32ar64 GR32_NOAX:$src), 0>, Requires<[In64BitMode]>;
2910 def : InstAlias<"xchg{q}\t{%rax, $src|$src, rax}", (XCHG64ar GR64:$src), 0>;