1 //===- ARMInstrInfo.td - Target Description for ARM Target -*- 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 ARM instructions in TableGen format.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // ARM specific DAG Nodes.
19 def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
20 def SDT_ARMCallSeqEnd : SDCallSeqEnd<[ SDTCisVT<0, i32>, SDTCisVT<1, i32> ]>;
22 def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
24 def SDT_ARMcall : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
26 def SDT_ARMCMov : SDTypeProfile<1, 3,
27 [SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
30 def SDT_ARMBrcond : SDTypeProfile<0, 2,
31 [SDTCisVT<0, OtherVT>, SDTCisVT<1, i32>]>;
33 def SDT_ARMBrJT : SDTypeProfile<0, 3,
34 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
37 def SDT_ARMBr2JT : SDTypeProfile<0, 4,
38 [SDTCisPtrTy<0>, SDTCisVT<1, i32>,
39 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
41 def SDT_ARMBCC_i64 : SDTypeProfile<0, 6,
43 SDTCisVT<1, i32>, SDTCisVT<2, i32>,
44 SDTCisVT<3, i32>, SDTCisVT<4, i32>,
45 SDTCisVT<5, OtherVT>]>;
47 def SDT_ARMAnd : SDTypeProfile<1, 2,
48 [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
51 def SDT_ARMCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
53 def SDT_ARMPICAdd : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
54 SDTCisPtrTy<1>, SDTCisVT<2, i32>]>;
56 def SDT_ARMThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
57 def SDT_ARMEH_SJLJ_Setjmp : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisPtrTy<1>,
59 def SDT_ARMEH_SJLJ_Longjmp: SDTypeProfile<0, 2, [SDTCisPtrTy<0>, SDTCisInt<1>]>;
61 def SDT_ARMEH_SJLJ_DispatchSetup: SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
63 def SDT_ARMMEMBARRIER : SDTypeProfile<0, 1, [SDTCisInt<0>]>;
65 def SDT_ARMTCRET : SDTypeProfile<0, 1, [SDTCisPtrTy<0>]>;
67 def SDT_ARMBFI : SDTypeProfile<1, 3, [SDTCisVT<0, i32>, SDTCisVT<1, i32>,
68 SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
71 def ARMWrapper : SDNode<"ARMISD::Wrapper", SDTIntUnaryOp>;
72 def ARMWrapperDYN : SDNode<"ARMISD::WrapperDYN", SDTIntUnaryOp>;
73 def ARMWrapperPIC : SDNode<"ARMISD::WrapperPIC", SDTIntUnaryOp>;
74 def ARMWrapperJT : SDNode<"ARMISD::WrapperJT", SDTIntBinOp>;
76 def ARMcallseq_start : SDNode<"ISD::CALLSEQ_START", SDT_ARMCallSeqStart,
77 [SDNPHasChain, SDNPOutGlue]>;
78 def ARMcallseq_end : SDNode<"ISD::CALLSEQ_END", SDT_ARMCallSeqEnd,
79 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
81 def ARMcall : SDNode<"ARMISD::CALL", SDT_ARMcall,
82 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
84 def ARMcall_pred : SDNode<"ARMISD::CALL_PRED", SDT_ARMcall,
85 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
87 def ARMcall_nolink : SDNode<"ARMISD::CALL_NOLINK", SDT_ARMcall,
88 [SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
91 def ARMretflag : SDNode<"ARMISD::RET_FLAG", SDTNone,
92 [SDNPHasChain, SDNPOptInGlue]>;
94 def ARMcmov : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
97 def ARMbrcond : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
98 [SDNPHasChain, SDNPInGlue, SDNPOutGlue]>;
100 def ARMbrjt : SDNode<"ARMISD::BR_JT", SDT_ARMBrJT,
102 def ARMbr2jt : SDNode<"ARMISD::BR2_JT", SDT_ARMBr2JT,
105 def ARMBcci64 : SDNode<"ARMISD::BCC_i64", SDT_ARMBCC_i64,
108 def ARMcmp : SDNode<"ARMISD::CMP", SDT_ARMCmp,
111 def ARMcmpZ : SDNode<"ARMISD::CMPZ", SDT_ARMCmp,
112 [SDNPOutGlue, SDNPCommutative]>;
114 def ARMpic_add : SDNode<"ARMISD::PIC_ADD", SDT_ARMPICAdd>;
116 def ARMsrl_flag : SDNode<"ARMISD::SRL_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
117 def ARMsra_flag : SDNode<"ARMISD::SRA_FLAG", SDTIntUnaryOp, [SDNPOutGlue]>;
118 def ARMrrx : SDNode<"ARMISD::RRX" , SDTIntUnaryOp, [SDNPInGlue ]>;
120 def ARMthread_pointer: SDNode<"ARMISD::THREAD_POINTER", SDT_ARMThreadPointer>;
121 def ARMeh_sjlj_setjmp: SDNode<"ARMISD::EH_SJLJ_SETJMP",
122 SDT_ARMEH_SJLJ_Setjmp, [SDNPHasChain]>;
123 def ARMeh_sjlj_longjmp: SDNode<"ARMISD::EH_SJLJ_LONGJMP",
124 SDT_ARMEH_SJLJ_Longjmp, [SDNPHasChain]>;
125 def ARMeh_sjlj_dispatchsetup: SDNode<"ARMISD::EH_SJLJ_DISPATCHSETUP",
126 SDT_ARMEH_SJLJ_DispatchSetup, [SDNPHasChain]>;
129 def ARMMemBarrier : SDNode<"ARMISD::MEMBARRIER", SDT_ARMMEMBARRIER,
131 def ARMMemBarrierMCR : SDNode<"ARMISD::MEMBARRIER_MCR", SDT_ARMMEMBARRIER,
133 def ARMPreload : SDNode<"ARMISD::PRELOAD", SDTPrefetch,
134 [SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
136 def ARMrbit : SDNode<"ARMISD::RBIT", SDTIntUnaryOp>;
138 def ARMtcret : SDNode<"ARMISD::TC_RETURN", SDT_ARMTCRET,
139 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
142 def ARMbfi : SDNode<"ARMISD::BFI", SDT_ARMBFI>;
144 //===----------------------------------------------------------------------===//
145 // ARM Instruction Predicate Definitions.
147 def HasV4T : Predicate<"Subtarget->hasV4TOps()">, AssemblerPredicate;
148 def NoV4T : Predicate<"!Subtarget->hasV4TOps()">;
149 def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
150 def HasV5TE : Predicate<"Subtarget->hasV5TEOps()">, AssemblerPredicate;
151 def HasV6 : Predicate<"Subtarget->hasV6Ops()">, AssemblerPredicate;
152 def NoV6 : Predicate<"!Subtarget->hasV6Ops()">;
153 def HasV6T2 : Predicate<"Subtarget->hasV6T2Ops()">, AssemblerPredicate;
154 def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
155 def HasV7 : Predicate<"Subtarget->hasV7Ops()">, AssemblerPredicate;
156 def NoVFP : Predicate<"!Subtarget->hasVFP2()">;
157 def HasVFP2 : Predicate<"Subtarget->hasVFP2()">, AssemblerPredicate;
158 def HasVFP3 : Predicate<"Subtarget->hasVFP3()">, AssemblerPredicate;
159 def HasNEON : Predicate<"Subtarget->hasNEON()">, AssemblerPredicate;
160 def HasFP16 : Predicate<"Subtarget->hasFP16()">, AssemblerPredicate;
161 def HasDivide : Predicate<"Subtarget->hasDivide()">, AssemblerPredicate;
162 def HasT2ExtractPack : Predicate<"Subtarget->hasT2ExtractPack()">,
164 def HasDB : Predicate<"Subtarget->hasDataBarrier()">,
166 def HasMP : Predicate<"Subtarget->hasMPExtension()">,
168 def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">;
169 def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">;
170 def IsThumb : Predicate<"Subtarget->isThumb()">, AssemblerPredicate;
171 def IsThumb1Only : Predicate<"Subtarget->isThumb1Only()">;
172 def IsThumb2 : Predicate<"Subtarget->isThumb2()">, AssemblerPredicate;
173 def IsARM : Predicate<"!Subtarget->isThumb()">, AssemblerPredicate;
174 def IsDarwin : Predicate<"Subtarget->isTargetDarwin()">;
175 def IsNotDarwin : Predicate<"!Subtarget->isTargetDarwin()">;
177 // FIXME: Eventually this will be just "hasV6T2Ops".
178 def UseMovt : Predicate<"Subtarget->useMovt()">;
179 def DontUseMovt : Predicate<"!Subtarget->useMovt()">;
180 def UseFPVMLx : Predicate<"Subtarget->useFPVMLx()">;
182 //===----------------------------------------------------------------------===//
183 // ARM Flag Definitions.
185 class RegConstraint<string C> {
186 string Constraints = C;
189 //===----------------------------------------------------------------------===//
190 // ARM specific transformation functions and pattern fragments.
193 // so_imm_neg_XFORM - Return a so_imm value packed into the format described for
194 // so_imm_neg def below.
195 def so_imm_neg_XFORM : SDNodeXForm<imm, [{
196 return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
199 // so_imm_not_XFORM - Return a so_imm value packed into the format described for
200 // so_imm_not def below.
201 def so_imm_not_XFORM : SDNodeXForm<imm, [{
202 return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
205 /// imm1_15 predicate - True if the 32-bit immediate is in the range [1,15].
206 def imm1_15 : PatLeaf<(i32 imm), [{
207 return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 16;
210 /// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
211 def imm16_31 : PatLeaf<(i32 imm), [{
212 return (int32_t)N->getZExtValue() >= 16 && (int32_t)N->getZExtValue() < 32;
217 return ARM_AM::getSOImmVal(-(uint32_t)N->getZExtValue()) != -1;
218 }], so_imm_neg_XFORM>;
222 return ARM_AM::getSOImmVal(~(uint32_t)N->getZExtValue()) != -1;
223 }], so_imm_not_XFORM>;
225 // sext_16_node predicate - True if the SDNode is sign-extended 16 or more bits.
226 def sext_16_node : PatLeaf<(i32 GPR:$a), [{
227 return CurDAG->ComputeNumSignBits(SDValue(N,0)) >= 17;
230 /// Split a 32-bit immediate into two 16 bit parts.
231 def hi16 : SDNodeXForm<imm, [{
232 return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
235 def lo16AllZero : PatLeaf<(i32 imm), [{
236 // Returns true if all low 16-bits are 0.
237 return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
240 /// imm0_65535 predicate - True if the 32-bit immediate is in the range
242 def imm0_65535 : PatLeaf<(i32 imm), [{
243 return (uint32_t)N->getZExtValue() < 65536;
246 class BinOpFrag<dag res> : PatFrag<(ops node:$LHS, node:$RHS), res>;
247 class UnOpFrag <dag res> : PatFrag<(ops node:$Src), res>;
249 /// adde and sube predicates - True based on whether the carry flag output
250 /// will be needed or not.
251 def adde_dead_carry :
252 PatFrag<(ops node:$LHS, node:$RHS), (adde node:$LHS, node:$RHS),
253 [{return !N->hasAnyUseOfValue(1);}]>;
254 def sube_dead_carry :
255 PatFrag<(ops node:$LHS, node:$RHS), (sube node:$LHS, node:$RHS),
256 [{return !N->hasAnyUseOfValue(1);}]>;
257 def adde_live_carry :
258 PatFrag<(ops node:$LHS, node:$RHS), (adde node:$LHS, node:$RHS),
259 [{return N->hasAnyUseOfValue(1);}]>;
260 def sube_live_carry :
261 PatFrag<(ops node:$LHS, node:$RHS), (sube node:$LHS, node:$RHS),
262 [{return N->hasAnyUseOfValue(1);}]>;
264 // An 'and' node with a single use.
265 def and_su : PatFrag<(ops node:$lhs, node:$rhs), (and node:$lhs, node:$rhs), [{
266 return N->hasOneUse();
269 // An 'xor' node with a single use.
270 def xor_su : PatFrag<(ops node:$lhs, node:$rhs), (xor node:$lhs, node:$rhs), [{
271 return N->hasOneUse();
274 // An 'fmul' node with a single use.
275 def fmul_su : PatFrag<(ops node:$lhs, node:$rhs), (fmul node:$lhs, node:$rhs),[{
276 return N->hasOneUse();
279 // An 'fadd' node which checks for single non-hazardous use.
280 def fadd_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fadd node:$lhs, node:$rhs),[{
281 return hasNoVMLxHazardUse(N);
284 // An 'fsub' node which checks for single non-hazardous use.
285 def fsub_mlx : PatFrag<(ops node:$lhs, node:$rhs),(fsub node:$lhs, node:$rhs),[{
286 return hasNoVMLxHazardUse(N);
289 //===----------------------------------------------------------------------===//
290 // Operand Definitions.
294 // FIXME: rename brtarget to t2_brtarget
295 def brtarget : Operand<OtherVT> {
296 let EncoderMethod = "getBranchTargetOpValue";
299 // FIXME: get rid of this one?
300 def uncondbrtarget : Operand<OtherVT> {
301 let EncoderMethod = "getUnconditionalBranchTargetOpValue";
304 // Branch target for ARM. Handles conditional/unconditional
305 def br_target : Operand<OtherVT> {
306 let EncoderMethod = "getARMBranchTargetOpValue";
310 // FIXME: rename bltarget to t2_bl_target?
311 def bltarget : Operand<i32> {
312 // Encoded the same as branch targets.
313 let EncoderMethod = "getBranchTargetOpValue";
316 // Call target for ARM. Handles conditional/unconditional
317 // FIXME: rename bl_target to t2_bltarget?
318 def bl_target : Operand<i32> {
319 // Encoded the same as branch targets.
320 let EncoderMethod = "getARMBranchTargetOpValue";
324 // A list of registers separated by comma. Used by load/store multiple.
325 def RegListAsmOperand : AsmOperandClass {
326 let Name = "RegList";
327 let SuperClasses = [];
330 def DPRRegListAsmOperand : AsmOperandClass {
331 let Name = "DPRRegList";
332 let SuperClasses = [];
335 def SPRRegListAsmOperand : AsmOperandClass {
336 let Name = "SPRRegList";
337 let SuperClasses = [];
340 def reglist : Operand<i32> {
341 let EncoderMethod = "getRegisterListOpValue";
342 let ParserMatchClass = RegListAsmOperand;
343 let PrintMethod = "printRegisterList";
346 def dpr_reglist : Operand<i32> {
347 let EncoderMethod = "getRegisterListOpValue";
348 let ParserMatchClass = DPRRegListAsmOperand;
349 let PrintMethod = "printRegisterList";
352 def spr_reglist : Operand<i32> {
353 let EncoderMethod = "getRegisterListOpValue";
354 let ParserMatchClass = SPRRegListAsmOperand;
355 let PrintMethod = "printRegisterList";
358 // An operand for the CONSTPOOL_ENTRY pseudo-instruction.
359 def cpinst_operand : Operand<i32> {
360 let PrintMethod = "printCPInstOperand";
364 def pclabel : Operand<i32> {
365 let PrintMethod = "printPCLabel";
368 // ADR instruction labels.
369 def adrlabel : Operand<i32> {
370 let EncoderMethod = "getAdrLabelOpValue";
373 def neon_vcvt_imm32 : Operand<i32> {
374 let EncoderMethod = "getNEONVcvtImm32OpValue";
377 // rot_imm: An integer that encodes a rotate amount. Must be 8, 16, or 24.
378 def rot_imm : Operand<i32>, PatLeaf<(i32 imm), [{
379 int32_t v = (int32_t)N->getZExtValue();
380 return v == 8 || v == 16 || v == 24; }]> {
381 let EncoderMethod = "getRotImmOpValue";
384 def ShifterAsmOperand : AsmOperandClass {
385 let Name = "Shifter";
386 let SuperClasses = [];
389 // shift_imm: An integer that encodes a shift amount and the type of shift
390 // (currently either asr or lsl) using the same encoding used for the
391 // immediates in so_reg operands.
392 def shift_imm : Operand<i32> {
393 let PrintMethod = "printShiftImmOperand";
394 let ParserMatchClass = ShifterAsmOperand;
397 // shifter_operand operands: so_reg and so_imm.
398 def so_reg : Operand<i32>, // reg reg imm
399 ComplexPattern<i32, 3, "SelectShifterOperandReg",
400 [shl,srl,sra,rotr]> {
401 let EncoderMethod = "getSORegOpValue";
402 let PrintMethod = "printSORegOperand";
403 let MIOperandInfo = (ops GPR, GPR, shift_imm);
405 def shift_so_reg : Operand<i32>, // reg reg imm
406 ComplexPattern<i32, 3, "SelectShiftShifterOperandReg",
407 [shl,srl,sra,rotr]> {
408 let EncoderMethod = "getSORegOpValue";
409 let PrintMethod = "printSORegOperand";
410 let MIOperandInfo = (ops GPR, GPR, shift_imm);
413 // so_imm - Match a 32-bit shifter_operand immediate operand, which is an
414 // 8-bit immediate rotated by an arbitrary number of bits.
415 def so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_so_imm(N); }]> {
416 let EncoderMethod = "getSOImmOpValue";
417 let PrintMethod = "printSOImmOperand";
420 // Break so_imm's up into two pieces. This handles immediates with up to 16
421 // bits set in them. This uses so_imm2part to match and so_imm2part_[12] to
422 // get the first/second pieces.
423 def so_imm2part : PatLeaf<(imm), [{
424 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
427 /// arm_i32imm - True for +V6T2, or true only if so_imm2part is true.
429 def arm_i32imm : PatLeaf<(imm), [{
430 if (Subtarget->hasV6T2Ops())
432 return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
435 /// imm0_31 predicate - True if the 32-bit immediate is in the range [0,31].
436 def imm0_31 : Operand<i32>, PatLeaf<(imm), [{
437 return (int32_t)N->getZExtValue() < 32;
440 /// imm0_31_m1 - Matches and prints like imm0_31, but encodes as 'value - 1'.
441 def imm0_31_m1 : Operand<i32>, PatLeaf<(imm), [{
442 return (int32_t)N->getZExtValue() < 32;
444 let EncoderMethod = "getImmMinusOneOpValue";
447 // i32imm_hilo16 - For movt/movw - sets the MC Encoder method.
448 // The imm is split into imm{15-12}, imm{11-0}
450 def i32imm_hilo16 : Operand<i32> {
451 let EncoderMethod = "getHiLo16ImmOpValue";
454 /// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
456 def bf_inv_mask_imm : Operand<i32>,
458 return ARM::isBitFieldInvertedMask(N->getZExtValue());
460 let EncoderMethod = "getBitfieldInvertedMaskOpValue";
461 let PrintMethod = "printBitfieldInvMaskImmOperand";
464 /// lsb_pos_imm - position of the lsb bit, used by BFI4p and t2BFI4p
465 def lsb_pos_imm : Operand<i32>, PatLeaf<(imm), [{
466 return isInt<5>(N->getSExtValue());
469 /// width_imm - number of bits to be copied, used by BFI4p and t2BFI4p
470 def width_imm : Operand<i32>, PatLeaf<(imm), [{
471 return N->getSExtValue() > 0 && N->getSExtValue() <= 32;
473 let EncoderMethod = "getMsbOpValue";
476 // Define ARM specific addressing modes.
479 // addrmode_imm12 := reg +/- imm12
481 def addrmode_imm12 : Operand<i32>,
482 ComplexPattern<i32, 2, "SelectAddrModeImm12", []> {
483 // 12-bit immediate operand. Note that instructions using this encode
484 // #0 and #-0 differently. We flag #-0 as the magic value INT32_MIN. All other
485 // immediate values are as normal.
487 let EncoderMethod = "getAddrModeImm12OpValue";
488 let PrintMethod = "printAddrModeImm12Operand";
489 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
491 // ldst_so_reg := reg +/- reg shop imm
493 def ldst_so_reg : Operand<i32>,
494 ComplexPattern<i32, 3, "SelectLdStSOReg", []> {
495 let EncoderMethod = "getLdStSORegOpValue";
496 // FIXME: Simplify the printer
497 let PrintMethod = "printAddrMode2Operand";
498 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
501 def MemMode2AsmOperand : AsmOperandClass {
502 let Name = "MemMode2";
503 let SuperClasses = [];
504 let ParserMethod = "tryParseMemMode2Operand";
507 // addrmode2 := reg +/- imm12
508 // := reg +/- reg shop imm
510 def addrmode2 : Operand<i32>,
511 ComplexPattern<i32, 3, "SelectAddrMode2", []> {
512 let EncoderMethod = "getAddrMode2OpValue";
513 let PrintMethod = "printAddrMode2Operand";
514 let ParserMatchClass = MemMode2AsmOperand;
515 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
518 def am2offset : Operand<i32>,
519 ComplexPattern<i32, 2, "SelectAddrMode2Offset",
520 [], [SDNPWantRoot]> {
521 let EncoderMethod = "getAddrMode2OffsetOpValue";
522 let PrintMethod = "printAddrMode2OffsetOperand";
523 let MIOperandInfo = (ops GPR, i32imm);
526 // addrmode3 := reg +/- reg
527 // addrmode3 := reg +/- imm8
529 def addrmode3 : Operand<i32>,
530 ComplexPattern<i32, 3, "SelectAddrMode3", []> {
531 let EncoderMethod = "getAddrMode3OpValue";
532 let PrintMethod = "printAddrMode3Operand";
533 let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
536 def am3offset : Operand<i32>,
537 ComplexPattern<i32, 2, "SelectAddrMode3Offset",
538 [], [SDNPWantRoot]> {
539 let EncoderMethod = "getAddrMode3OffsetOpValue";
540 let PrintMethod = "printAddrMode3OffsetOperand";
541 let MIOperandInfo = (ops GPR, i32imm);
544 // ldstm_mode := {ia, ib, da, db}
546 def ldstm_mode : OptionalDefOperand<OtherVT, (ops i32), (ops (i32 1))> {
547 let EncoderMethod = "getLdStmModeOpValue";
548 let PrintMethod = "printLdStmModeOperand";
551 def MemMode5AsmOperand : AsmOperandClass {
552 let Name = "MemMode5";
553 let SuperClasses = [];
556 // addrmode5 := reg +/- imm8*4
558 def addrmode5 : Operand<i32>,
559 ComplexPattern<i32, 2, "SelectAddrMode5", []> {
560 let PrintMethod = "printAddrMode5Operand";
561 let MIOperandInfo = (ops GPR:$base, i32imm);
562 let ParserMatchClass = MemMode5AsmOperand;
563 let EncoderMethod = "getAddrMode5OpValue";
566 // addrmode6 := reg with optional alignment
568 def addrmode6 : Operand<i32>,
569 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
570 let PrintMethod = "printAddrMode6Operand";
571 let MIOperandInfo = (ops GPR:$addr, i32imm);
572 let EncoderMethod = "getAddrMode6AddressOpValue";
575 def am6offset : Operand<i32>,
576 ComplexPattern<i32, 1, "SelectAddrMode6Offset",
577 [], [SDNPWantRoot]> {
578 let PrintMethod = "printAddrMode6OffsetOperand";
579 let MIOperandInfo = (ops GPR);
580 let EncoderMethod = "getAddrMode6OffsetOpValue";
583 // Special version of addrmode6 to handle alignment encoding for VLD-dup
584 // instructions, specifically VLD4-dup.
585 def addrmode6dup : Operand<i32>,
586 ComplexPattern<i32, 2, "SelectAddrMode6", [], [SDNPWantParent]>{
587 let PrintMethod = "printAddrMode6Operand";
588 let MIOperandInfo = (ops GPR:$addr, i32imm);
589 let EncoderMethod = "getAddrMode6DupAddressOpValue";
592 // addrmodepc := pc + reg
594 def addrmodepc : Operand<i32>,
595 ComplexPattern<i32, 2, "SelectAddrModePC", []> {
596 let PrintMethod = "printAddrModePCOperand";
597 let MIOperandInfo = (ops GPR, i32imm);
600 def MemMode7AsmOperand : AsmOperandClass {
601 let Name = "MemMode7";
602 let SuperClasses = [];
606 // Used by load/store exclusive instructions. Useful to enable right assembly
607 // parsing and printing. Not used for any codegen matching.
609 def addrmode7 : Operand<i32> {
610 let PrintMethod = "printAddrMode7Operand";
611 let MIOperandInfo = (ops GPR);
612 let ParserMatchClass = MemMode7AsmOperand;
615 def nohash_imm : Operand<i32> {
616 let PrintMethod = "printNoHashImmediate";
619 def CoprocNumAsmOperand : AsmOperandClass {
620 let Name = "CoprocNum";
621 let SuperClasses = [];
622 let ParserMethod = "tryParseCoprocNumOperand";
625 def CoprocRegAsmOperand : AsmOperandClass {
626 let Name = "CoprocReg";
627 let SuperClasses = [];
628 let ParserMethod = "tryParseCoprocRegOperand";
631 def p_imm : Operand<i32> {
632 let PrintMethod = "printPImmediate";
633 let ParserMatchClass = CoprocNumAsmOperand;
636 def c_imm : Operand<i32> {
637 let PrintMethod = "printCImmediate";
638 let ParserMatchClass = CoprocRegAsmOperand;
641 //===----------------------------------------------------------------------===//
643 include "ARMInstrFormats.td"
645 //===----------------------------------------------------------------------===//
646 // Multiclass helpers...
649 /// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
650 /// binop that produces a value.
651 multiclass AsI1_bin_irs<bits<4> opcod, string opc,
652 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
653 PatFrag opnode, bit Commutable = 0> {
654 // The register-immediate version is re-materializable. This is useful
655 // in particular for taking the address of a local.
656 let isReMaterializable = 1 in {
657 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
658 iii, opc, "\t$Rd, $Rn, $imm",
659 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
664 let Inst{19-16} = Rn;
665 let Inst{15-12} = Rd;
666 let Inst{11-0} = imm;
669 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
670 iir, opc, "\t$Rd, $Rn, $Rm",
671 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
676 let isCommutable = Commutable;
677 let Inst{19-16} = Rn;
678 let Inst{15-12} = Rd;
679 let Inst{11-4} = 0b00000000;
682 def rs : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift), DPSoRegFrm,
683 iis, opc, "\t$Rd, $Rn, $shift",
684 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg:$shift))]> {
689 let Inst{19-16} = Rn;
690 let Inst{15-12} = Rd;
691 let Inst{11-0} = shift;
695 /// AI1_bin_s_irs - Similar to AsI1_bin_irs except it sets the 's' bit so the
696 /// instruction modifies the CPSR register.
697 let isCodeGenOnly = 1, Defs = [CPSR] in {
698 multiclass AI1_bin_s_irs<bits<4> opcod, string opc,
699 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
700 PatFrag opnode, bit Commutable = 0> {
701 def ri : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
702 iii, opc, "\t$Rd, $Rn, $imm",
703 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]> {
709 let Inst{19-16} = Rn;
710 let Inst{15-12} = Rd;
711 let Inst{11-0} = imm;
713 def rr : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
714 iir, opc, "\t$Rd, $Rn, $Rm",
715 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]> {
719 let isCommutable = Commutable;
722 let Inst{19-16} = Rn;
723 let Inst{15-12} = Rd;
724 let Inst{11-4} = 0b00000000;
727 def rs : AI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift), DPSoRegFrm,
728 iis, opc, "\t$Rd, $Rn, $shift",
729 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg:$shift))]> {
735 let Inst{19-16} = Rn;
736 let Inst{15-12} = Rd;
737 let Inst{11-0} = shift;
742 /// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
743 /// patterns. Similar to AsI1_bin_irs except the instruction does not produce
744 /// a explicit result, only implicitly set CPSR.
745 let isCompare = 1, Defs = [CPSR] in {
746 multiclass AI1_cmp_irs<bits<4> opcod, string opc,
747 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
748 PatFrag opnode, bit Commutable = 0> {
749 def ri : AI1<opcod, (outs), (ins GPR:$Rn, so_imm:$imm), DPFrm, iii,
751 [(opnode GPR:$Rn, so_imm:$imm)]> {
756 let Inst{19-16} = Rn;
757 let Inst{15-12} = 0b0000;
758 let Inst{11-0} = imm;
760 def rr : AI1<opcod, (outs), (ins GPR:$Rn, GPR:$Rm), DPFrm, iir,
762 [(opnode GPR:$Rn, GPR:$Rm)]> {
765 let isCommutable = Commutable;
768 let Inst{19-16} = Rn;
769 let Inst{15-12} = 0b0000;
770 let Inst{11-4} = 0b00000000;
773 def rs : AI1<opcod, (outs), (ins GPR:$Rn, so_reg:$shift), DPSoRegFrm, iis,
774 opc, "\t$Rn, $shift",
775 [(opnode GPR:$Rn, so_reg:$shift)]> {
780 let Inst{19-16} = Rn;
781 let Inst{15-12} = 0b0000;
782 let Inst{11-0} = shift;
787 /// AI_ext_rrot - A unary operation with two forms: one whose operand is a
788 /// register and one whose operand is a register rotated by 8/16/24.
789 /// FIXME: Remove the 'r' variant. Its rot_imm is zero.
790 multiclass AI_ext_rrot<bits<8> opcod, string opc, PatFrag opnode> {
791 def r : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm),
792 IIC_iEXTr, opc, "\t$Rd, $Rm",
793 [(set GPR:$Rd, (opnode GPR:$Rm))]>,
794 Requires<[IsARM, HasV6]> {
797 let Inst{19-16} = 0b1111;
798 let Inst{15-12} = Rd;
799 let Inst{11-10} = 0b00;
802 def r_rot : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
803 IIC_iEXTr, opc, "\t$Rd, $Rm, ror $rot",
804 [(set GPR:$Rd, (opnode (rotr GPR:$Rm, rot_imm:$rot)))]>,
805 Requires<[IsARM, HasV6]> {
809 let Inst{19-16} = 0b1111;
810 let Inst{15-12} = Rd;
811 let Inst{11-10} = rot;
816 multiclass AI_ext_rrot_np<bits<8> opcod, string opc> {
817 def r : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm),
818 IIC_iEXTr, opc, "\t$Rd, $Rm",
819 [/* For disassembly only; pattern left blank */]>,
820 Requires<[IsARM, HasV6]> {
821 let Inst{19-16} = 0b1111;
822 let Inst{11-10} = 0b00;
824 def r_rot : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rm, rot_imm:$rot),
825 IIC_iEXTr, opc, "\t$Rd, $Rm, ror $rot",
826 [/* For disassembly only; pattern left blank */]>,
827 Requires<[IsARM, HasV6]> {
829 let Inst{19-16} = 0b1111;
830 let Inst{11-10} = rot;
834 /// AI_exta_rrot - A binary operation with two forms: one whose operand is a
835 /// register and one whose operand is a register rotated by 8/16/24.
836 multiclass AI_exta_rrot<bits<8> opcod, string opc, PatFrag opnode> {
837 def rr : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
838 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm",
839 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
840 Requires<[IsARM, HasV6]> {
844 let Inst{19-16} = Rn;
845 let Inst{15-12} = Rd;
846 let Inst{11-10} = 0b00;
847 let Inst{9-4} = 0b000111;
850 def rr_rot : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm,
852 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
853 [(set GPR:$Rd, (opnode GPR:$Rn,
854 (rotr GPR:$Rm, rot_imm:$rot)))]>,
855 Requires<[IsARM, HasV6]> {
860 let Inst{19-16} = Rn;
861 let Inst{15-12} = Rd;
862 let Inst{11-10} = rot;
863 let Inst{9-4} = 0b000111;
868 // For disassembly only.
869 multiclass AI_exta_rrot_np<bits<8> opcod, string opc> {
870 def rr : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
871 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm",
872 [/* For disassembly only; pattern left blank */]>,
873 Requires<[IsARM, HasV6]> {
874 let Inst{11-10} = 0b00;
876 def rr_rot : AExtI<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm,
878 IIC_iEXTAr, opc, "\t$Rd, $Rn, $Rm, ror $rot",
879 [/* For disassembly only; pattern left blank */]>,
880 Requires<[IsARM, HasV6]> {
883 let Inst{19-16} = Rn;
884 let Inst{11-10} = rot;
888 /// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
889 let Uses = [CPSR] in {
890 multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
891 bit Commutable = 0> {
892 def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
893 DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
894 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>,
900 let Inst{15-12} = Rd;
901 let Inst{19-16} = Rn;
902 let Inst{11-0} = imm;
904 def rr : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
905 DPFrm, IIC_iALUr, opc, "\t$Rd, $Rn, $Rm",
906 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
911 let Inst{11-4} = 0b00000000;
913 let isCommutable = Commutable;
915 let Inst{15-12} = Rd;
916 let Inst{19-16} = Rn;
918 def rs : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
919 DPSoRegFrm, IIC_iALUsr, opc, "\t$Rd, $Rn, $shift",
920 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg:$shift))]>,
926 let Inst{11-0} = shift;
927 let Inst{15-12} = Rd;
928 let Inst{19-16} = Rn;
931 // Carry setting variants
932 let isCodeGenOnly = 1, Defs = [CPSR] in {
933 multiclass AI1_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
934 bit Commutable = 0> {
935 def Sri : AXI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
936 DPFrm, IIC_iALUi, !strconcat(opc, "\t$Rd, $Rn, $imm"),
937 [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>,
942 let Inst{31-27} = 0b1110; // non-predicated
943 let Inst{15-12} = Rd;
944 let Inst{19-16} = Rn;
945 let Inst{11-0} = imm;
949 def Srr : AXI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
950 DPFrm, IIC_iALUr, !strconcat(opc, "\t$Rd, $Rn, $Rm"),
951 [(set GPR:$Rd, (opnode GPR:$Rn, GPR:$Rm))]>,
956 let Inst{31-27} = 0b1110; // non-predicated
957 let Inst{11-4} = 0b00000000;
958 let isCommutable = Commutable;
960 let Inst{15-12} = Rd;
961 let Inst{19-16} = Rn;
965 def Srs : AXI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
966 DPSoRegFrm, IIC_iALUsr, !strconcat(opc, "\t$Rd, $Rn, $shift"),
967 [(set GPR:$Rd, (opnode GPR:$Rn, so_reg:$shift))]>,
972 let Inst{31-27} = 0b1110; // non-predicated
973 let Inst{11-0} = shift;
974 let Inst{15-12} = Rd;
975 let Inst{19-16} = Rn;
983 let canFoldAsLoad = 1, isReMaterializable = 1 in {
984 multiclass AI_ldr1<bit isByte, string opc, InstrItinClass iii,
985 InstrItinClass iir, PatFrag opnode> {
986 // Note: We use the complex addrmode_imm12 rather than just an input
987 // GPR and a constrained immediate so that we can use this to match
988 // frame index references and avoid matching constant pool references.
989 def i12: AI2ldst<0b010, 1, isByte, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
990 AddrMode_i12, LdFrm, iii, opc, "\t$Rt, $addr",
991 [(set GPR:$Rt, (opnode addrmode_imm12:$addr))]> {
994 let Inst{23} = addr{12}; // U (add = ('U' == 1))
995 let Inst{19-16} = addr{16-13}; // Rn
996 let Inst{15-12} = Rt;
997 let Inst{11-0} = addr{11-0}; // imm12
999 def rs : AI2ldst<0b011, 1, isByte, (outs GPR:$Rt), (ins ldst_so_reg:$shift),
1000 AddrModeNone, LdFrm, iir, opc, "\t$Rt, $shift",
1001 [(set GPR:$Rt, (opnode ldst_so_reg:$shift))]> {
1004 let shift{4} = 0; // Inst{4} = 0
1005 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1006 let Inst{19-16} = shift{16-13}; // Rn
1007 let Inst{15-12} = Rt;
1008 let Inst{11-0} = shift{11-0};
1013 multiclass AI_str1<bit isByte, string opc, InstrItinClass iii,
1014 InstrItinClass iir, PatFrag opnode> {
1015 // Note: We use the complex addrmode_imm12 rather than just an input
1016 // GPR and a constrained immediate so that we can use this to match
1017 // frame index references and avoid matching constant pool references.
1018 def i12 : AI2ldst<0b010, 0, isByte, (outs),
1019 (ins GPR:$Rt, addrmode_imm12:$addr),
1020 AddrMode_i12, StFrm, iii, opc, "\t$Rt, $addr",
1021 [(opnode GPR:$Rt, addrmode_imm12:$addr)]> {
1024 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1025 let Inst{19-16} = addr{16-13}; // Rn
1026 let Inst{15-12} = Rt;
1027 let Inst{11-0} = addr{11-0}; // imm12
1029 def rs : AI2ldst<0b011, 0, isByte, (outs), (ins GPR:$Rt, ldst_so_reg:$shift),
1030 AddrModeNone, StFrm, iir, opc, "\t$Rt, $shift",
1031 [(opnode GPR:$Rt, ldst_so_reg:$shift)]> {
1034 let shift{4} = 0; // Inst{4} = 0
1035 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1036 let Inst{19-16} = shift{16-13}; // Rn
1037 let Inst{15-12} = Rt;
1038 let Inst{11-0} = shift{11-0};
1041 //===----------------------------------------------------------------------===//
1043 //===----------------------------------------------------------------------===//
1045 //===----------------------------------------------------------------------===//
1046 // Miscellaneous Instructions.
1049 /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
1050 /// the function. The first operand is the ID# for this instruction, the second
1051 /// is the index into the MachineConstantPool that this is, the third is the
1052 /// size in bytes of this constant pool entry.
1053 let neverHasSideEffects = 1, isNotDuplicable = 1 in
1054 def CONSTPOOL_ENTRY :
1055 PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
1056 i32imm:$size), NoItinerary, []>;
1058 // FIXME: Marking these as hasSideEffects is necessary to prevent machine DCE
1059 // from removing one half of the matched pairs. That breaks PEI, which assumes
1060 // these will always be in pairs, and asserts if it finds otherwise. Better way?
1061 let Defs = [SP], Uses = [SP], hasSideEffects = 1 in {
1062 def ADJCALLSTACKUP :
1063 PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
1064 [(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
1066 def ADJCALLSTACKDOWN :
1067 PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
1068 [(ARMcallseq_start timm:$amt)]>;
1071 def NOP : AI<(outs), (ins), MiscFrm, NoItinerary, "nop", "",
1072 [/* For disassembly only; pattern left blank */]>,
1073 Requires<[IsARM, HasV6T2]> {
1074 let Inst{27-16} = 0b001100100000;
1075 let Inst{15-8} = 0b11110000;
1076 let Inst{7-0} = 0b00000000;
1079 def YIELD : AI<(outs), (ins), MiscFrm, NoItinerary, "yield", "",
1080 [/* For disassembly only; pattern left blank */]>,
1081 Requires<[IsARM, HasV6T2]> {
1082 let Inst{27-16} = 0b001100100000;
1083 let Inst{15-8} = 0b11110000;
1084 let Inst{7-0} = 0b00000001;
1087 def WFE : AI<(outs), (ins), MiscFrm, NoItinerary, "wfe", "",
1088 [/* For disassembly only; pattern left blank */]>,
1089 Requires<[IsARM, HasV6T2]> {
1090 let Inst{27-16} = 0b001100100000;
1091 let Inst{15-8} = 0b11110000;
1092 let Inst{7-0} = 0b00000010;
1095 def WFI : AI<(outs), (ins), MiscFrm, NoItinerary, "wfi", "",
1096 [/* For disassembly only; pattern left blank */]>,
1097 Requires<[IsARM, HasV6T2]> {
1098 let Inst{27-16} = 0b001100100000;
1099 let Inst{15-8} = 0b11110000;
1100 let Inst{7-0} = 0b00000011;
1103 def SEL : AI<(outs GPR:$dst), (ins GPR:$a, GPR:$b), DPFrm, NoItinerary, "sel",
1105 [/* For disassembly only; pattern left blank */]>,
1106 Requires<[IsARM, HasV6]> {
1111 let Inst{15-12} = Rd;
1112 let Inst{19-16} = Rn;
1113 let Inst{27-20} = 0b01101000;
1114 let Inst{7-4} = 0b1011;
1115 let Inst{11-8} = 0b1111;
1118 def SEV : AI<(outs), (ins), MiscFrm, NoItinerary, "sev", "",
1119 [/* For disassembly only; pattern left blank */]>,
1120 Requires<[IsARM, HasV6T2]> {
1121 let Inst{27-16} = 0b001100100000;
1122 let Inst{15-8} = 0b11110000;
1123 let Inst{7-0} = 0b00000100;
1126 // The i32imm operand $val can be used by a debugger to store more information
1127 // about the breakpoint.
1128 def BKPT : AI<(outs), (ins i32imm:$val), MiscFrm, NoItinerary, "bkpt", "\t$val",
1129 [/* For disassembly only; pattern left blank */]>,
1132 let Inst{3-0} = val{3-0};
1133 let Inst{19-8} = val{15-4};
1134 let Inst{27-20} = 0b00010010;
1135 let Inst{7-4} = 0b0111;
1138 // Change Processor State is a system instruction -- for disassembly and
1140 // FIXME: Since the asm parser has currently no clean way to handle optional
1141 // operands, create 3 versions of the same instruction. Once there's a clean
1142 // framework to represent optional operands, change this behavior.
1143 class CPS<dag iops, string asm_ops>
1144 : AXI<(outs), iops, MiscFrm, NoItinerary, !strconcat("cps", asm_ops),
1145 [/* For disassembly only; pattern left blank */]>, Requires<[IsARM]> {
1151 let Inst{31-28} = 0b1111;
1152 let Inst{27-20} = 0b00010000;
1153 let Inst{19-18} = imod;
1154 let Inst{17} = M; // Enabled if mode is set;
1156 let Inst{8-6} = iflags;
1158 let Inst{4-0} = mode;
1162 def CPS3p : CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
1163 "$imod\t$iflags, $mode">;
1164 let mode = 0, M = 0 in
1165 def CPS2p : CPS<(ins imod_op:$imod, iflags_op:$iflags), "$imod\t$iflags">;
1167 let imod = 0, iflags = 0, M = 1 in
1168 def CPS1p : CPS<(ins i32imm:$mode), "\t$mode">;
1170 // Preload signals the memory system of possible future data/instruction access.
1171 // These are for disassembly only.
1172 multiclass APreLoad<bits<1> read, bits<1> data, string opc> {
1174 def i12 : AXI<(outs), (ins addrmode_imm12:$addr), MiscFrm, IIC_Preload,
1175 !strconcat(opc, "\t$addr"),
1176 [(ARMPreload addrmode_imm12:$addr, (i32 read), (i32 data))]> {
1179 let Inst{31-26} = 0b111101;
1180 let Inst{25} = 0; // 0 for immediate form
1181 let Inst{24} = data;
1182 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1183 let Inst{22} = read;
1184 let Inst{21-20} = 0b01;
1185 let Inst{19-16} = addr{16-13}; // Rn
1186 let Inst{15-12} = 0b1111;
1187 let Inst{11-0} = addr{11-0}; // imm12
1190 def rs : AXI<(outs), (ins ldst_so_reg:$shift), MiscFrm, IIC_Preload,
1191 !strconcat(opc, "\t$shift"),
1192 [(ARMPreload ldst_so_reg:$shift, (i32 read), (i32 data))]> {
1194 let Inst{31-26} = 0b111101;
1195 let Inst{25} = 1; // 1 for register form
1196 let Inst{24} = data;
1197 let Inst{23} = shift{12}; // U (add = ('U' == 1))
1198 let Inst{22} = read;
1199 let Inst{21-20} = 0b01;
1200 let Inst{19-16} = shift{16-13}; // Rn
1201 let Inst{15-12} = 0b1111;
1202 let Inst{11-0} = shift{11-0};
1206 defm PLD : APreLoad<1, 1, "pld">, Requires<[IsARM]>;
1207 defm PLDW : APreLoad<0, 1, "pldw">, Requires<[IsARM,HasV7,HasMP]>;
1208 defm PLI : APreLoad<1, 0, "pli">, Requires<[IsARM,HasV7]>;
1210 def SETEND : AXI<(outs),(ins setend_op:$end), MiscFrm, NoItinerary,
1212 [/* For disassembly only; pattern left blank */]>,
1215 let Inst{31-10} = 0b1111000100000001000000;
1220 def DBG : AI<(outs), (ins i32imm:$opt), MiscFrm, NoItinerary, "dbg", "\t$opt",
1221 [/* For disassembly only; pattern left blank */]>,
1222 Requires<[IsARM, HasV7]> {
1224 let Inst{27-4} = 0b001100100000111100001111;
1225 let Inst{3-0} = opt;
1228 // A5.4 Permanently UNDEFINED instructions.
1229 let isBarrier = 1, isTerminator = 1 in
1230 def TRAP : AXI<(outs), (ins), MiscFrm, NoItinerary,
1233 let Inst = 0xe7ffdefe;
1236 // Address computation and loads and stores in PIC mode.
1237 let isNotDuplicable = 1 in {
1238 def PICADD : ARMPseudoInst<(outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
1239 Size4Bytes, IIC_iALUr,
1240 [(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>;
1242 let AddedComplexity = 10 in {
1243 def PICLDR : ARMPseudoInst<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
1244 Size4Bytes, IIC_iLoad_r,
1245 [(set GPR:$dst, (load addrmodepc:$addr))]>;
1247 def PICLDRH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1248 Size4Bytes, IIC_iLoad_bh_r,
1249 [(set GPR:$Rt, (zextloadi16 addrmodepc:$addr))]>;
1251 def PICLDRB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1252 Size4Bytes, IIC_iLoad_bh_r,
1253 [(set GPR:$Rt, (zextloadi8 addrmodepc:$addr))]>;
1255 def PICLDRSH : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1256 Size4Bytes, IIC_iLoad_bh_r,
1257 [(set GPR:$Rt, (sextloadi16 addrmodepc:$addr))]>;
1259 def PICLDRSB : ARMPseudoInst<(outs GPR:$Rt), (ins addrmodepc:$addr, pred:$p),
1260 Size4Bytes, IIC_iLoad_bh_r,
1261 [(set GPR:$Rt, (sextloadi8 addrmodepc:$addr))]>;
1263 let AddedComplexity = 10 in {
1264 def PICSTR : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1265 Size4Bytes, IIC_iStore_r, [(store GPR:$src, addrmodepc:$addr)]>;
1267 def PICSTRH : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1268 Size4Bytes, IIC_iStore_bh_r, [(truncstorei16 GPR:$src,
1269 addrmodepc:$addr)]>;
1271 def PICSTRB : ARMPseudoInst<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
1272 Size4Bytes, IIC_iStore_bh_r, [(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
1274 } // isNotDuplicable = 1
1277 // LEApcrel - Load a pc-relative address into a register without offending the
1279 let neverHasSideEffects = 1, isReMaterializable = 1 in
1280 // The 'adr' mnemonic encodes differently if the label is before or after
1281 // the instruction. The {24-21} opcode bits are set by the fixup, as we don't
1282 // know until then which form of the instruction will be used.
1283 def ADR : AI1<{0,?,?,0}, (outs GPR:$Rd), (ins adrlabel:$label),
1284 MiscFrm, IIC_iALUi, "adr", "\t$Rd, #$label", []> {
1287 let Inst{27-25} = 0b001;
1289 let Inst{19-16} = 0b1111;
1290 let Inst{15-12} = Rd;
1291 let Inst{11-0} = label;
1293 def LEApcrel : ARMPseudoInst<(outs GPR:$Rd), (ins i32imm:$label, pred:$p),
1294 Size4Bytes, IIC_iALUi, []>;
1296 def LEApcrelJT : ARMPseudoInst<(outs GPR:$Rd),
1297 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1298 Size4Bytes, IIC_iALUi, []>;
1300 //===----------------------------------------------------------------------===//
1301 // Control Flow Instructions.
1304 let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
1306 def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1307 "bx", "\tlr", [(ARMretflag)]>,
1308 Requires<[IsARM, HasV4T]> {
1309 let Inst{27-0} = 0b0001001011111111111100011110;
1313 def MOVPCLR : AI<(outs), (ins), BrMiscFrm, IIC_Br,
1314 "mov", "\tpc, lr", [(ARMretflag)]>,
1315 Requires<[IsARM, NoV4T]> {
1316 let Inst{27-0} = 0b0001101000001111000000001110;
1320 // Indirect branches
1321 let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
1323 def BX : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
1324 [(brind GPR:$dst)]>,
1325 Requires<[IsARM, HasV4T]> {
1327 let Inst{31-4} = 0b1110000100101111111111110001;
1328 let Inst{3-0} = dst;
1332 // FIXME: We would really like to define this as a vanilla ARMPat like:
1333 // ARMPat<(brind GPR:$dst), (MOVr PC, GPR:$dst)>
1334 // With that, however, we can't set isBranch, isTerminator, etc..
1335 def MOVPCRX : ARMPseudoInst<(outs), (ins GPR:$dst),
1336 Size4Bytes, IIC_Br, [(brind GPR:$dst)]>,
1337 Requires<[IsARM, NoV4T]>;
1340 // All calls clobber the non-callee saved registers. SP is marked as
1341 // a use to prevent stack-pointer assignments that appear immediately
1342 // before calls from potentially appearing dead.
1344 // On non-Darwin platforms R9 is callee-saved.
1345 // FIXME: Do we really need a non-predicated version? If so, it should
1346 // at least be a pseudo instruction expanding to the predicated version
1347 // at MC lowering time.
1348 Defs = [R0, R1, R2, R3, R12, LR,
1349 D0, D1, D2, D3, D4, D5, D6, D7,
1350 D16, D17, D18, D19, D20, D21, D22, D23,
1351 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
1353 def BL : ABXI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1354 IIC_Br, "bl\t$func",
1355 [(ARMcall tglobaladdr:$func)]>,
1356 Requires<[IsARM, IsNotDarwin]> {
1357 let Inst{31-28} = 0b1110;
1359 let Inst{23-0} = func;
1362 def BL_pred : ABI<0b1011, (outs), (ins bl_target:$func, variable_ops),
1363 IIC_Br, "bl", "\t$func",
1364 [(ARMcall_pred tglobaladdr:$func)]>,
1365 Requires<[IsARM, IsNotDarwin]> {
1367 let Inst{23-0} = func;
1371 def BLX : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1372 IIC_Br, "blx\t$func",
1373 [(ARMcall GPR:$func)]>,
1374 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1376 let Inst{31-4} = 0b1110000100101111111111110011;
1377 let Inst{3-0} = func;
1380 def BLX_pred : AI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
1381 IIC_Br, "blx", "\t$func",
1382 [(ARMcall_pred GPR:$func)]>,
1383 Requires<[IsARM, HasV5T, IsNotDarwin]> {
1385 let Inst{27-4} = 0b000100101111111111110011;
1386 let Inst{3-0} = func;
1390 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1391 def BX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1392 Size8Bytes, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1393 Requires<[IsARM, HasV4T, IsNotDarwin]>;
1396 def BMOVPCRX_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1397 Size8Bytes, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1398 Requires<[IsARM, NoV4T, IsNotDarwin]>;
1402 // On Darwin R9 is call-clobbered.
1403 // R7 is marked as a use to prevent frame-pointer assignments from being
1404 // moved above / below calls.
1405 Defs = [R0, R1, R2, R3, R9, R12, LR,
1406 D0, D1, D2, D3, D4, D5, D6, D7,
1407 D16, D17, D18, D19, D20, D21, D22, D23,
1408 D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR],
1409 Uses = [R7, SP] in {
1410 def BLr9 : ARMPseudoInst<(outs), (ins bltarget:$func, variable_ops),
1412 [(ARMcall tglobaladdr:$func)]>, Requires<[IsARM, IsDarwin]>;
1414 def BLr9_pred : ARMPseudoInst<(outs),
1415 (ins bltarget:$func, pred:$p, variable_ops),
1417 [(ARMcall_pred tglobaladdr:$func)]>,
1418 Requires<[IsARM, IsDarwin]>;
1421 def BLXr9 : ARMPseudoInst<(outs), (ins GPR:$func, variable_ops),
1423 [(ARMcall GPR:$func)]>, Requires<[IsARM, HasV5T, IsDarwin]>;
1425 def BLXr9_pred: ARMPseudoInst<(outs), (ins GPR:$func, pred:$p, variable_ops),
1427 [(ARMcall_pred GPR:$func)]>,
1428 Requires<[IsARM, HasV5T, IsDarwin]>;
1431 // Note: Restrict $func to the tGPR regclass to prevent it being in LR.
1432 def BXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1433 Size8Bytes, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1434 Requires<[IsARM, HasV4T, IsDarwin]>;
1437 def BMOVPCRXr9_CALL : ARMPseudoInst<(outs), (ins tGPR:$func, variable_ops),
1438 Size8Bytes, IIC_Br, [(ARMcall_nolink tGPR:$func)]>,
1439 Requires<[IsARM, NoV4T, IsDarwin]>;
1444 // FIXME: The Thumb versions of these should live in ARMInstrThumb.td
1445 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
1447 let Defs = [R0, R1, R2, R3, R9, R12,
1448 D0, D1, D2, D3, D4, D5, D6, D7,
1449 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26,
1450 D27, D28, D29, D30, D31, PC],
1452 def TCRETURNdi : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1453 IIC_Br, []>, Requires<[IsDarwin]>;
1455 def TCRETURNri : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1456 IIC_Br, []>, Requires<[IsDarwin]>;
1458 def TAILJMPd : ARMPseudoInst<(outs), (ins brtarget:$dst, variable_ops),
1460 []>, Requires<[IsARM, IsDarwin]>;
1462 def tTAILJMPd: tPseudoInst<(outs), (ins brtarget:$dst, variable_ops),
1464 []>, Requires<[IsThumb, IsDarwin]>;
1466 def TAILJMPr : ARMPseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1468 []>, Requires<[IsARM, IsDarwin]>;
1470 def tTAILJMPr : tPseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1472 []>, Requires<[IsThumb, IsDarwin]>;
1475 // Non-Darwin versions (the difference is R9).
1476 let Defs = [R0, R1, R2, R3, R12,
1477 D0, D1, D2, D3, D4, D5, D6, D7,
1478 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26,
1479 D27, D28, D29, D30, D31, PC],
1481 def TCRETURNdiND : PseudoInst<(outs), (ins i32imm:$dst, variable_ops),
1482 IIC_Br, []>, Requires<[IsNotDarwin]>;
1484 def TCRETURNriND : PseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1485 IIC_Br, []>, Requires<[IsNotDarwin]>;
1487 def TAILJMPdND : ARMPseudoInst<(outs), (ins brtarget:$dst, variable_ops),
1489 []>, Requires<[IsARM, IsNotDarwin]>;
1491 def tTAILJMPdND : tPseudoInst<(outs), (ins brtarget:$dst, variable_ops),
1493 []>, Requires<[IsThumb, IsNotDarwin]>;
1495 def TAILJMPrND : ARMPseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1497 []>, Requires<[IsARM, IsNotDarwin]>;
1498 def tTAILJMPrND : tPseudoInst<(outs), (ins tcGPR:$dst, variable_ops),
1500 []>, Requires<[IsThumb, IsNotDarwin]>;
1504 let isBranch = 1, isTerminator = 1 in {
1505 // B is "predicable" since it's just a Bcc with an 'always' condition.
1506 let isBarrier = 1 in {
1507 let isPredicable = 1 in
1508 // FIXME: We shouldn't need this pseudo at all. Just using Bcc directly
1509 // should be sufficient.
1510 def B : ARMPseudoInst<(outs), (ins brtarget:$target), Size4Bytes, IIC_Br,
1513 let isNotDuplicable = 1, isIndirectBranch = 1 in {
1514 def BR_JTr : ARMPseudoInst<(outs),
1515 (ins GPR:$target, i32imm:$jt, i32imm:$id),
1516 SizeSpecial, IIC_Br,
1517 [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>;
1518 // FIXME: This shouldn't use the generic "addrmode2," but rather be split
1519 // into i12 and rs suffixed versions.
1520 def BR_JTm : ARMPseudoInst<(outs),
1521 (ins addrmode2:$target, i32imm:$jt, i32imm:$id),
1522 SizeSpecial, IIC_Br,
1523 [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
1525 def BR_JTadd : ARMPseudoInst<(outs),
1526 (ins GPR:$target, GPR:$idx, i32imm:$jt, i32imm:$id),
1527 SizeSpecial, IIC_Br,
1528 [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
1530 } // isNotDuplicable = 1, isIndirectBranch = 1
1533 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
1534 // a two-value operand where a dag node expects two operands. :(
1535 def Bcc : ABI<0b1010, (outs), (ins br_target:$target),
1536 IIC_Br, "b", "\t$target",
1537 [/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]> {
1539 let Inst{23-0} = target;
1543 // BLX (immediate) -- for disassembly only
1544 def BLXi : AXI<(outs), (ins br_target:$target), BrMiscFrm, NoItinerary,
1545 "blx\t$target", [/* pattern left blank */]>,
1546 Requires<[IsARM, HasV5T]> {
1547 let Inst{31-25} = 0b1111101;
1549 let Inst{23-0} = target{24-1};
1550 let Inst{24} = target{0};
1553 // Branch and Exchange Jazelle -- for disassembly only
1554 def BXJ : ABI<0b0001, (outs), (ins GPR:$func), NoItinerary, "bxj", "\t$func",
1555 [/* For disassembly only; pattern left blank */]> {
1556 let Inst{23-20} = 0b0010;
1557 //let Inst{19-8} = 0xfff;
1558 let Inst{7-4} = 0b0010;
1561 // Secure Monitor Call is a system instruction -- for disassembly only
1562 def SMC : ABI<0b0001, (outs), (ins i32imm:$opt), NoItinerary, "smc", "\t$opt",
1563 [/* For disassembly only; pattern left blank */]> {
1565 let Inst{23-4} = 0b01100000000000000111;
1566 let Inst{3-0} = opt;
1569 // Supervisor Call (Software Interrupt) -- for disassembly only
1570 let isCall = 1, Uses = [SP] in {
1571 def SVC : ABI<0b1111, (outs), (ins i32imm:$svc), IIC_Br, "svc", "\t$svc",
1572 [/* For disassembly only; pattern left blank */]> {
1574 let Inst{23-0} = svc;
1577 def : MnemonicAlias<"swi", "svc">;
1579 // Store Return State is a system instruction -- for disassembly only
1580 let isCodeGenOnly = 1 in { // FIXME: This should not use submode!
1581 def SRSW : ABXI<{1,0,0,?}, (outs), (ins ldstm_mode:$amode, i32imm:$mode),
1582 NoItinerary, "srs${amode}\tsp!, $mode",
1583 [/* For disassembly only; pattern left blank */]> {
1584 let Inst{31-28} = 0b1111;
1585 let Inst{22-20} = 0b110; // W = 1
1588 def SRS : ABXI<{1,0,0,?}, (outs), (ins ldstm_mode:$amode, i32imm:$mode),
1589 NoItinerary, "srs${amode}\tsp, $mode",
1590 [/* For disassembly only; pattern left blank */]> {
1591 let Inst{31-28} = 0b1111;
1592 let Inst{22-20} = 0b100; // W = 0
1595 // Return From Exception is a system instruction -- for disassembly only
1596 def RFEW : ABXI<{1,0,0,?}, (outs), (ins ldstm_mode:$amode, GPR:$base),
1597 NoItinerary, "rfe${amode}\t$base!",
1598 [/* For disassembly only; pattern left blank */]> {
1599 let Inst{31-28} = 0b1111;
1600 let Inst{22-20} = 0b011; // W = 1
1603 def RFE : ABXI<{1,0,0,?}, (outs), (ins ldstm_mode:$amode, GPR:$base),
1604 NoItinerary, "rfe${amode}\t$base",
1605 [/* For disassembly only; pattern left blank */]> {
1606 let Inst{31-28} = 0b1111;
1607 let Inst{22-20} = 0b001; // W = 0
1609 } // isCodeGenOnly = 1
1611 //===----------------------------------------------------------------------===//
1612 // Load / store Instructions.
1618 defm LDR : AI_ldr1<0, "ldr", IIC_iLoad_r, IIC_iLoad_si,
1619 UnOpFrag<(load node:$Src)>>;
1620 defm LDRB : AI_ldr1<1, "ldrb", IIC_iLoad_bh_r, IIC_iLoad_bh_si,
1621 UnOpFrag<(zextloadi8 node:$Src)>>;
1622 defm STR : AI_str1<0, "str", IIC_iStore_r, IIC_iStore_si,
1623 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1624 defm STRB : AI_str1<1, "strb", IIC_iStore_bh_r, IIC_iStore_bh_si,
1625 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1627 // Special LDR for loads from non-pc-relative constpools.
1628 let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
1629 isReMaterializable = 1 in
1630 def LDRcp : AI2ldst<0b010, 1, 0, (outs GPR:$Rt), (ins addrmode_imm12:$addr),
1631 AddrMode_i12, LdFrm, IIC_iLoad_r, "ldr", "\t$Rt, $addr",
1635 let Inst{23} = addr{12}; // U (add = ('U' == 1))
1636 let Inst{19-16} = 0b1111;
1637 let Inst{15-12} = Rt;
1638 let Inst{11-0} = addr{11-0}; // imm12
1641 // Loads with zero extension
1642 def LDRH : AI3ld<0b1011, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1643 IIC_iLoad_bh_r, "ldrh", "\t$Rt, $addr",
1644 [(set GPR:$Rt, (zextloadi16 addrmode3:$addr))]>;
1646 // Loads with sign extension
1647 def LDRSH : AI3ld<0b1111, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1648 IIC_iLoad_bh_r, "ldrsh", "\t$Rt, $addr",
1649 [(set GPR:$Rt, (sextloadi16 addrmode3:$addr))]>;
1651 def LDRSB : AI3ld<0b1101, 1, (outs GPR:$Rt), (ins addrmode3:$addr), LdMiscFrm,
1652 IIC_iLoad_bh_r, "ldrsb", "\t$Rt, $addr",
1653 [(set GPR:$Rt, (sextloadi8 addrmode3:$addr))]>;
1655 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1657 def LDRD : AI3ld<0b1101, 0, (outs GPR:$Rd, GPR:$dst2),
1658 (ins addrmode3:$addr), LdMiscFrm,
1659 IIC_iLoad_d_r, "ldrd", "\t$Rd, $dst2, $addr",
1660 []>, Requires<[IsARM, HasV5TE]>;
1664 multiclass AI2_ldridx<bit isByte, string opc, InstrItinClass itin> {
1665 def _PRE : AI2ldstidx<1, isByte, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1666 (ins addrmode2:$addr), IndexModePre, LdFrm, itin,
1667 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1669 // {13} 1 == Rm, 0 == imm12
1673 let Inst{25} = addr{13};
1674 let Inst{23} = addr{12};
1675 let Inst{19-16} = addr{17-14};
1676 let Inst{11-0} = addr{11-0};
1677 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode2";
1679 def _POST : AI2ldstidx<1, isByte, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1680 (ins GPR:$Rn, am2offset:$offset),
1681 IndexModePost, LdFrm, itin,
1682 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1683 // {13} 1 == Rm, 0 == imm12
1688 let Inst{25} = offset{13};
1689 let Inst{23} = offset{12};
1690 let Inst{19-16} = Rn;
1691 let Inst{11-0} = offset{11-0};
1695 let mayLoad = 1, neverHasSideEffects = 1 in {
1696 defm LDR : AI2_ldridx<0, "ldr", IIC_iLoad_ru>;
1697 defm LDRB : AI2_ldridx<1, "ldrb", IIC_iLoad_bh_ru>;
1700 multiclass AI3_ldridx<bits<4> op, bit op20, string opc, InstrItinClass itin> {
1701 def _PRE : AI3ldstidx<op, op20, 1, 1, (outs GPR:$Rt, GPR:$Rn_wb),
1702 (ins addrmode3:$addr), IndexModePre,
1704 opc, "\t$Rt, $addr!", "$addr.base = $Rn_wb", []> {
1706 let Inst{23} = addr{8}; // U bit
1707 let Inst{22} = addr{13}; // 1 == imm8, 0 == Rm
1708 let Inst{19-16} = addr{12-9}; // Rn
1709 let Inst{11-8} = addr{7-4}; // imm7_4/zero
1710 let Inst{3-0} = addr{3-0}; // imm3_0/Rm
1712 def _POST : AI3ldstidx<op, op20, 1, 0, (outs GPR:$Rt, GPR:$Rn_wb),
1713 (ins GPR:$Rn, am3offset:$offset), IndexModePost,
1715 opc, "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb", []> {
1718 let Inst{23} = offset{8}; // U bit
1719 let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
1720 let Inst{19-16} = Rn;
1721 let Inst{11-8} = offset{7-4}; // imm7_4/zero
1722 let Inst{3-0} = offset{3-0}; // imm3_0/Rm
1726 let mayLoad = 1, neverHasSideEffects = 1 in {
1727 defm LDRH : AI3_ldridx<0b1011, 1, "ldrh", IIC_iLoad_bh_ru>;
1728 defm LDRSH : AI3_ldridx<0b1111, 1, "ldrsh", IIC_iLoad_bh_ru>;
1729 defm LDRSB : AI3_ldridx<0b1101, 1, "ldrsb", IIC_iLoad_bh_ru>;
1730 let hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
1731 defm LDRD : AI3_ldridx<0b1101, 0, "ldrd", IIC_iLoad_d_ru>;
1732 } // mayLoad = 1, neverHasSideEffects = 1
1734 // LDRT, LDRBT, LDRSBT, LDRHT, LDRSHT are for disassembly only.
1735 let mayLoad = 1, neverHasSideEffects = 1 in {
1736 def LDRT : AI2ldstidx<1, 0, 0, (outs GPR:$Rt, GPR:$base_wb),
1737 (ins addrmode2:$addr), IndexModePost, LdFrm, IIC_iLoad_ru,
1738 "ldrt", "\t$Rt, $addr", "$addr.base = $base_wb", []> {
1740 // {13} 1 == Rm, 0 == imm12
1744 let Inst{25} = addr{13};
1745 let Inst{23} = addr{12};
1746 let Inst{21} = 1; // overwrite
1747 let Inst{19-16} = addr{17-14};
1748 let Inst{11-0} = addr{11-0};
1749 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode2";
1751 def LDRBT : AI2ldstidx<1, 1, 0, (outs GPR:$Rt, GPR:$base_wb),
1752 (ins addrmode2:$addr), IndexModePost, LdFrm, IIC_iLoad_bh_ru,
1753 "ldrbt", "\t$Rt, $addr", "$addr.base = $base_wb", []> {
1755 // {13} 1 == Rm, 0 == imm12
1759 let Inst{25} = addr{13};
1760 let Inst{23} = addr{12};
1761 let Inst{21} = 1; // overwrite
1762 let Inst{19-16} = addr{17-14};
1763 let Inst{11-0} = addr{11-0};
1764 let AsmMatchConverter = "CvtLdWriteBackRegAddrMode2";
1766 def LDRSBT : AI3ldstidx<0b1101, 1, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1767 (ins GPR:$base, am3offset:$offset), IndexModePost,
1768 LdMiscFrm, IIC_iLoad_bh_ru,
1769 "ldrsbt", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
1770 let Inst{21} = 1; // overwrite
1772 def LDRHT : AI3ldstidx<0b1011, 1, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1773 (ins GPR:$base, am3offset:$offset), IndexModePost,
1774 LdMiscFrm, IIC_iLoad_bh_ru,
1775 "ldrht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
1776 let Inst{21} = 1; // overwrite
1778 def LDRSHT : AI3ldstidx<0b1111, 1, 1, 0, (outs GPR:$dst, GPR:$base_wb),
1779 (ins GPR:$base, am3offset:$offset), IndexModePost,
1780 LdMiscFrm, IIC_iLoad_bh_ru,
1781 "ldrsht", "\t$dst, [$base], $offset", "$base = $base_wb", []> {
1782 let Inst{21} = 1; // overwrite
1788 // Stores with truncate
1789 def STRH : AI3str<0b1011, (outs), (ins GPR:$Rt, addrmode3:$addr), StMiscFrm,
1790 IIC_iStore_bh_r, "strh", "\t$Rt, $addr",
1791 [(truncstorei16 GPR:$Rt, addrmode3:$addr)]>;
1794 let mayStore = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1795 def STRD : AI3str<0b1111, (outs), (ins GPR:$Rt, GPR:$src2, addrmode3:$addr),
1796 StMiscFrm, IIC_iStore_d_r,
1797 "strd", "\t$Rt, $src2, $addr", []>, Requires<[IsARM, HasV5TE]>;
1800 def STR_PRE : AI2stridx<0, 1, (outs GPR:$Rn_wb),
1801 (ins GPR:$Rt, GPR:$Rn, am2offset:$offset),
1802 IndexModePre, StFrm, IIC_iStore_ru,
1803 "str", "\t$Rt, [$Rn, $offset]!", "$Rn = $Rn_wb",
1805 (pre_store GPR:$Rt, GPR:$Rn, am2offset:$offset))]>;
1807 def STR_POST : AI2stridx<0, 0, (outs GPR:$Rn_wb),
1808 (ins GPR:$Rt, GPR:$Rn, am2offset:$offset),
1809 IndexModePost, StFrm, IIC_iStore_ru,
1810 "str", "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb",
1812 (post_store GPR:$Rt, GPR:$Rn, am2offset:$offset))]>;
1814 def STRB_PRE : AI2stridx<1, 1, (outs GPR:$Rn_wb),
1815 (ins GPR:$Rt, GPR:$Rn, am2offset:$offset),
1816 IndexModePre, StFrm, IIC_iStore_bh_ru,
1817 "strb", "\t$Rt, [$Rn, $offset]!", "$Rn = $Rn_wb",
1818 [(set GPR:$Rn_wb, (pre_truncsti8 GPR:$Rt,
1819 GPR:$Rn, am2offset:$offset))]>;
1820 def STRB_POST: AI2stridx<1, 0, (outs GPR:$Rn_wb),
1821 (ins GPR:$Rt, GPR:$Rn, am2offset:$offset),
1822 IndexModePost, StFrm, IIC_iStore_bh_ru,
1823 "strb", "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb",
1824 [(set GPR:$Rn_wb, (post_truncsti8 GPR:$Rt,
1825 GPR:$Rn, am2offset:$offset))]>;
1827 def STRH_PRE : AI3stridx<0b1011, 0, 1, (outs GPR:$Rn_wb),
1828 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
1829 IndexModePre, StMiscFrm, IIC_iStore_ru,
1830 "strh", "\t$Rt, [$Rn, $offset]!", "$Rn = $Rn_wb",
1832 (pre_truncsti16 GPR:$Rt, GPR:$Rn, am3offset:$offset))]>;
1834 def STRH_POST: AI3stridx<0b1011, 0, 0, (outs GPR:$Rn_wb),
1835 (ins GPR:$Rt, GPR:$Rn, am3offset:$offset),
1836 IndexModePost, StMiscFrm, IIC_iStore_bh_ru,
1837 "strh", "\t$Rt, [$Rn], $offset", "$Rn = $Rn_wb",
1838 [(set GPR:$Rn_wb, (post_truncsti16 GPR:$Rt,
1839 GPR:$Rn, am3offset:$offset))]>;
1841 // For disassembly only
1842 def STRD_PRE : AI3stdpr<(outs GPR:$base_wb),
1843 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
1844 StMiscFrm, IIC_iStore_d_ru,
1845 "strd", "\t$src1, $src2, [$base, $offset]!",
1846 "$base = $base_wb", []>;
1848 // For disassembly only
1849 def STRD_POST: AI3stdpo<(outs GPR:$base_wb),
1850 (ins GPR:$src1, GPR:$src2, GPR:$base, am3offset:$offset),
1851 StMiscFrm, IIC_iStore_d_ru,
1852 "strd", "\t$src1, $src2, [$base], $offset",
1853 "$base = $base_wb", []>;
1855 // STRT, STRBT, and STRHT are for disassembly only.
1857 def STRT : AI2stridxT<0, 0, (outs GPR:$Rn_wb), (ins GPR:$Rt, addrmode2:$addr),
1858 IndexModePost, StFrm, IIC_iStore_ru,
1859 "strt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
1860 [/* For disassembly only; pattern left blank */]> {
1861 let Inst{21} = 1; // overwrite
1862 let AsmMatchConverter = "CvtStWriteBackRegAddrMode2";
1865 def STRBT : AI2stridxT<1, 0, (outs GPR:$Rn_wb), (ins GPR:$Rt, addrmode2:$addr),
1866 IndexModePost, StFrm, IIC_iStore_bh_ru,
1867 "strbt", "\t$Rt, $addr", "$addr.base = $Rn_wb",
1868 [/* For disassembly only; pattern left blank */]> {
1869 let Inst{21} = 1; // overwrite
1870 let AsmMatchConverter = "CvtStWriteBackRegAddrMode2";
1873 def STRHT: AI3sthpo<(outs GPR:$base_wb),
1874 (ins GPR:$src, GPR:$base,am3offset:$offset),
1875 StMiscFrm, IIC_iStore_bh_ru,
1876 "strht", "\t$src, [$base], $offset", "$base = $base_wb",
1877 [/* For disassembly only; pattern left blank */]> {
1878 let Inst{21} = 1; // overwrite
1881 //===----------------------------------------------------------------------===//
1882 // Load / store multiple Instructions.
1885 multiclass arm_ldst_mult<string asm, bit L_bit, Format f,
1886 InstrItinClass itin, InstrItinClass itin_upd> {
1888 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1889 IndexModeNone, f, itin,
1890 !strconcat(asm, "ia${p}\t$Rn, $regs"), "", []> {
1891 let Inst{24-23} = 0b01; // Increment After
1892 let Inst{21} = 0; // No writeback
1893 let Inst{20} = L_bit;
1896 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1897 IndexModeUpd, f, itin_upd,
1898 !strconcat(asm, "ia${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1899 let Inst{24-23} = 0b01; // Increment After
1900 let Inst{21} = 1; // Writeback
1901 let Inst{20} = L_bit;
1904 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1905 IndexModeNone, f, itin,
1906 !strconcat(asm, "da${p}\t$Rn, $regs"), "", []> {
1907 let Inst{24-23} = 0b00; // Decrement After
1908 let Inst{21} = 0; // No writeback
1909 let Inst{20} = L_bit;
1912 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1913 IndexModeUpd, f, itin_upd,
1914 !strconcat(asm, "da${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1915 let Inst{24-23} = 0b00; // Decrement After
1916 let Inst{21} = 1; // Writeback
1917 let Inst{20} = L_bit;
1920 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1921 IndexModeNone, f, itin,
1922 !strconcat(asm, "db${p}\t$Rn, $regs"), "", []> {
1923 let Inst{24-23} = 0b10; // Decrement Before
1924 let Inst{21} = 0; // No writeback
1925 let Inst{20} = L_bit;
1928 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1929 IndexModeUpd, f, itin_upd,
1930 !strconcat(asm, "db${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1931 let Inst{24-23} = 0b10; // Decrement Before
1932 let Inst{21} = 1; // Writeback
1933 let Inst{20} = L_bit;
1936 AXI4<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1937 IndexModeNone, f, itin,
1938 !strconcat(asm, "ib${p}\t$Rn, $regs"), "", []> {
1939 let Inst{24-23} = 0b11; // Increment Before
1940 let Inst{21} = 0; // No writeback
1941 let Inst{20} = L_bit;
1944 AXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1945 IndexModeUpd, f, itin_upd,
1946 !strconcat(asm, "ib${p}\t$Rn!, $regs"), "$Rn = $wb", []> {
1947 let Inst{24-23} = 0b11; // Increment Before
1948 let Inst{21} = 1; // Writeback
1949 let Inst{20} = L_bit;
1953 let neverHasSideEffects = 1 in {
1955 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1956 defm LDM : arm_ldst_mult<"ldm", 1, LdStMulFrm, IIC_iLoad_m, IIC_iLoad_mu>;
1958 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1959 defm STM : arm_ldst_mult<"stm", 0, LdStMulFrm, IIC_iStore_m, IIC_iStore_mu>;
1961 } // neverHasSideEffects
1963 // Load / Store Multiple Mnemonic Aliases
1964 def : MnemonicAlias<"ldm", "ldmia">;
1965 def : MnemonicAlias<"stm", "stmia">;
1967 // FIXME: remove when we have a way to marking a MI with these properties.
1968 // FIXME: Should pc be an implicit operand like PICADD, etc?
1969 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
1970 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
1971 def LDMIA_RET : ARMPseudoInst<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
1972 reglist:$regs, variable_ops),
1973 Size4Bytes, IIC_iLoad_mBr, []>,
1974 RegConstraint<"$Rn = $wb">;
1976 //===----------------------------------------------------------------------===//
1977 // Move Instructions.
1980 let neverHasSideEffects = 1 in
1981 def MOVr : AsI1<0b1101, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMOVr,
1982 "mov", "\t$Rd, $Rm", []>, UnaryDP {
1986 let Inst{11-4} = 0b00000000;
1989 let Inst{15-12} = Rd;
1992 // A version for the smaller set of tail call registers.
1993 let neverHasSideEffects = 1 in
1994 def MOVr_TC : AsI1<0b1101, (outs tcGPR:$Rd), (ins tcGPR:$Rm), DPFrm,
1995 IIC_iMOVr, "mov", "\t$Rd, $Rm", []>, UnaryDP {
1999 let Inst{11-4} = 0b00000000;
2002 let Inst{15-12} = Rd;
2005 def MOVs : AsI1<0b1101, (outs GPR:$Rd), (ins shift_so_reg:$src),
2006 DPSoRegFrm, IIC_iMOVsr,
2007 "mov", "\t$Rd, $src", [(set GPR:$Rd, shift_so_reg:$src)]>,
2011 let Inst{15-12} = Rd;
2012 let Inst{19-16} = 0b0000;
2013 let Inst{11-0} = src;
2017 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2018 def MOVi : AsI1<0b1101, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm, IIC_iMOVi,
2019 "mov", "\t$Rd, $imm", [(set GPR:$Rd, so_imm:$imm)]>, UnaryDP {
2023 let Inst{15-12} = Rd;
2024 let Inst{19-16} = 0b0000;
2025 let Inst{11-0} = imm;
2028 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2029 def MOVi16 : AI1<0b1000, (outs GPR:$Rd), (ins i32imm_hilo16:$imm),
2031 "movw", "\t$Rd, $imm",
2032 [(set GPR:$Rd, imm0_65535:$imm)]>,
2033 Requires<[IsARM, HasV6T2]>, UnaryDP {
2036 let Inst{15-12} = Rd;
2037 let Inst{11-0} = imm{11-0};
2038 let Inst{19-16} = imm{15-12};
2043 def MOVi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2044 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2046 let Constraints = "$src = $Rd" in {
2047 def MOVTi16 : AI1<0b1010, (outs GPR:$Rd), (ins GPR:$src, i32imm_hilo16:$imm),
2049 "movt", "\t$Rd, $imm",
2051 (or (and GPR:$src, 0xffff),
2052 lo16AllZero:$imm))]>, UnaryDP,
2053 Requires<[IsARM, HasV6T2]> {
2056 let Inst{15-12} = Rd;
2057 let Inst{11-0} = imm{11-0};
2058 let Inst{19-16} = imm{15-12};
2063 def MOVTi16_ga_pcrel : PseudoInst<(outs GPR:$Rd),
2064 (ins GPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
2068 def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
2069 Requires<[IsARM, HasV6T2]>;
2071 let Uses = [CPSR] in
2072 def RRX: PseudoInst<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVsi,
2073 [(set GPR:$Rd, (ARMrrx GPR:$Rm))]>, UnaryDP,
2076 // These aren't really mov instructions, but we have to define them this way
2077 // due to flag operands.
2079 let Defs = [CPSR] in {
2080 def MOVsrl_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2081 [(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP,
2083 def MOVsra_flag : PseudoInst<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVsi,
2084 [(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP,
2088 //===----------------------------------------------------------------------===//
2089 // Extend Instructions.
2094 defm SXTB : AI_ext_rrot<0b01101010,
2095 "sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
2096 defm SXTH : AI_ext_rrot<0b01101011,
2097 "sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
2099 defm SXTAB : AI_exta_rrot<0b01101010,
2100 "sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
2101 defm SXTAH : AI_exta_rrot<0b01101011,
2102 "sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
2104 // For disassembly only
2105 defm SXTB16 : AI_ext_rrot_np<0b01101000, "sxtb16">;
2107 // For disassembly only
2108 defm SXTAB16 : AI_exta_rrot_np<0b01101000, "sxtab16">;
2112 let AddedComplexity = 16 in {
2113 defm UXTB : AI_ext_rrot<0b01101110,
2114 "uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
2115 defm UXTH : AI_ext_rrot<0b01101111,
2116 "uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
2117 defm UXTB16 : AI_ext_rrot<0b01101100,
2118 "uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
2120 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
2121 // The transformation should probably be done as a combiner action
2122 // instead so we can include a check for masking back in the upper
2123 // eight bits of the source into the lower eight bits of the result.
2124 //def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
2125 // (UXTB16r_rot GPR:$Src, 24)>;
2126 def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
2127 (UXTB16r_rot GPR:$Src, 8)>;
2129 defm UXTAB : AI_exta_rrot<0b01101110, "uxtab",
2130 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
2131 defm UXTAH : AI_exta_rrot<0b01101111, "uxtah",
2132 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
2135 // This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
2136 // For disassembly only
2137 defm UXTAB16 : AI_exta_rrot_np<0b01101100, "uxtab16">;
2140 def SBFX : I<(outs GPR:$Rd),
2141 (ins GPR:$Rn, imm0_31:$lsb, imm0_31_m1:$width),
2142 AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
2143 "sbfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2144 Requires<[IsARM, HasV6T2]> {
2149 let Inst{27-21} = 0b0111101;
2150 let Inst{6-4} = 0b101;
2151 let Inst{20-16} = width;
2152 let Inst{15-12} = Rd;
2153 let Inst{11-7} = lsb;
2157 def UBFX : I<(outs GPR:$Rd),
2158 (ins GPR:$Rn, imm0_31:$lsb, imm0_31_m1:$width),
2159 AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
2160 "ubfx", "\t$Rd, $Rn, $lsb, $width", "", []>,
2161 Requires<[IsARM, HasV6T2]> {
2166 let Inst{27-21} = 0b0111111;
2167 let Inst{6-4} = 0b101;
2168 let Inst{20-16} = width;
2169 let Inst{15-12} = Rd;
2170 let Inst{11-7} = lsb;
2174 //===----------------------------------------------------------------------===//
2175 // Arithmetic Instructions.
2178 defm ADD : AsI1_bin_irs<0b0100, "add",
2179 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2180 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
2181 defm SUB : AsI1_bin_irs<0b0010, "sub",
2182 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2183 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
2185 // ADD and SUB with 's' bit set.
2186 defm ADDS : AI1_bin_s_irs<0b0100, "adds",
2187 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2188 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
2189 defm SUBS : AI1_bin_s_irs<0b0010, "subs",
2190 IIC_iALUi, IIC_iALUr, IIC_iALUsr,
2191 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
2193 defm ADC : AI1_adde_sube_irs<0b0101, "adc",
2194 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
2195 defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
2196 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
2198 // ADC and SUBC with 's' bit set.
2199 defm ADCS : AI1_adde_sube_s_irs<0b0101, "adcs",
2200 BinOpFrag<(adde_live_carry node:$LHS, node:$RHS)>, 1>;
2201 defm SBCS : AI1_adde_sube_s_irs<0b0110, "sbcs",
2202 BinOpFrag<(sube_live_carry node:$LHS, node:$RHS) >>;
2204 def RSBri : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
2205 IIC_iALUi, "rsb", "\t$Rd, $Rn, $imm",
2206 [(set GPR:$Rd, (sub so_imm:$imm, GPR:$Rn))]> {
2211 let Inst{15-12} = Rd;
2212 let Inst{19-16} = Rn;
2213 let Inst{11-0} = imm;
2216 // The reg/reg form is only defined for the disassembler; for codegen it is
2217 // equivalent to SUBrr.
2218 def RSBrr : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
2219 IIC_iALUr, "rsb", "\t$Rd, $Rn, $Rm",
2220 [/* For disassembly only; pattern left blank */]> {
2224 let Inst{11-4} = 0b00000000;
2227 let Inst{15-12} = Rd;
2228 let Inst{19-16} = Rn;
2231 def RSBrs : AsI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
2232 DPSoRegFrm, IIC_iALUsr, "rsb", "\t$Rd, $Rn, $shift",
2233 [(set GPR:$Rd, (sub so_reg:$shift, GPR:$Rn))]> {
2238 let Inst{11-0} = shift;
2239 let Inst{15-12} = Rd;
2240 let Inst{19-16} = Rn;
2243 // RSB with 's' bit set.
2244 let isCodeGenOnly = 1, Defs = [CPSR] in {
2245 def RSBSri : AI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm,
2246 IIC_iALUi, "rsbs", "\t$Rd, $Rn, $imm",
2247 [(set GPR:$Rd, (subc so_imm:$imm, GPR:$Rn))]> {
2253 let Inst{15-12} = Rd;
2254 let Inst{19-16} = Rn;
2255 let Inst{11-0} = imm;
2257 def RSBSrr : AI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm), DPFrm,
2258 IIC_iALUr, "rsbs", "\t$Rd, $Rn, $Rm",
2259 [/* For disassembly only; pattern left blank */]> {
2263 let Inst{11-4} = 0b00000000;
2267 let Inst{15-12} = Rd;
2268 let Inst{19-16} = Rn;
2270 def RSBSrs : AI1<0b0011, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
2271 DPSoRegFrm, IIC_iALUsr, "rsbs", "\t$Rd, $Rn, $shift",
2272 [(set GPR:$Rd, (subc so_reg:$shift, GPR:$Rn))]> {
2278 let Inst{11-0} = shift;
2279 let Inst{15-12} = Rd;
2280 let Inst{19-16} = Rn;
2284 let Uses = [CPSR] in {
2285 def RSCri : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2286 DPFrm, IIC_iALUi, "rsc", "\t$Rd, $Rn, $imm",
2287 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>,
2293 let Inst{15-12} = Rd;
2294 let Inst{19-16} = Rn;
2295 let Inst{11-0} = imm;
2297 // The reg/reg form is only defined for the disassembler; for codegen it is
2298 // equivalent to SUBrr.
2299 def RSCrr : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2300 DPFrm, IIC_iALUr, "rsc", "\t$Rd, $Rn, $Rm",
2301 [/* For disassembly only; pattern left blank */]> {
2305 let Inst{11-4} = 0b00000000;
2308 let Inst{15-12} = Rd;
2309 let Inst{19-16} = Rn;
2311 def RSCrs : AsI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
2312 DPSoRegFrm, IIC_iALUsr, "rsc", "\t$Rd, $Rn, $shift",
2313 [(set GPR:$Rd, (sube_dead_carry so_reg:$shift, GPR:$Rn))]>,
2319 let Inst{11-0} = shift;
2320 let Inst{15-12} = Rd;
2321 let Inst{19-16} = Rn;
2325 // FIXME: Allow these to be predicated.
2326 let isCodeGenOnly = 1, Defs = [CPSR], Uses = [CPSR] in {
2327 def RSCSri : AXI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm),
2328 DPFrm, IIC_iALUi, "rscs\t$Rd, $Rn, $imm",
2329 [(set GPR:$Rd, (sube_dead_carry so_imm:$imm, GPR:$Rn))]>,
2336 let Inst{15-12} = Rd;
2337 let Inst{19-16} = Rn;
2338 let Inst{11-0} = imm;
2340 def RSCSrs : AXI1<0b0111, (outs GPR:$Rd), (ins GPR:$Rn, so_reg:$shift),
2341 DPSoRegFrm, IIC_iALUsr, "rscs\t$Rd, $Rn, $shift",
2342 [(set GPR:$Rd, (sube_dead_carry so_reg:$shift, GPR:$Rn))]>,
2349 let Inst{11-0} = shift;
2350 let Inst{15-12} = Rd;
2351 let Inst{19-16} = Rn;
2355 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
2356 // The assume-no-carry-in form uses the negation of the input since add/sub
2357 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
2358 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
2360 def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
2361 (SUBri GPR:$src, so_imm_neg:$imm)>;
2362 def : ARMPat<(addc GPR:$src, so_imm_neg:$imm),
2363 (SUBSri GPR:$src, so_imm_neg:$imm)>;
2364 // The with-carry-in form matches bitwise not instead of the negation.
2365 // Effectively, the inverse interpretation of the carry flag already accounts
2366 // for part of the negation.
2367 def : ARMPat<(adde GPR:$src, so_imm_not:$imm),
2368 (SBCri GPR:$src, so_imm_not:$imm)>;
2370 // Note: These are implemented in C++ code, because they have to generate
2371 // ADD/SUBrs instructions, which use a complex pattern that a xform function
2373 // (mul X, 2^n+1) -> (add (X << n), X)
2374 // (mul X, 2^n-1) -> (rsb X, (X << n))
2376 // ARM Arithmetic Instruction -- for disassembly only
2377 // GPR:$dst = GPR:$a op GPR:$b
2378 class AAI<bits<8> op27_20, bits<8> op11_4, string opc,
2379 list<dag> pattern = [/* For disassembly only; pattern left blank */],
2380 dag iops = (ins GPR:$Rn, GPR:$Rm), string asm = "\t$Rd, $Rn, $Rm">
2381 : AI<(outs GPR:$Rd), iops, DPFrm, IIC_iALUr, opc, asm, pattern> {
2385 let Inst{27-20} = op27_20;
2386 let Inst{11-4} = op11_4;
2387 let Inst{19-16} = Rn;
2388 let Inst{15-12} = Rd;
2392 // Saturating add/subtract -- for disassembly only
2394 def QADD : AAI<0b00010000, 0b00000101, "qadd",
2395 [(set GPR:$Rd, (int_arm_qadd GPR:$Rm, GPR:$Rn))],
2396 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2397 def QSUB : AAI<0b00010010, 0b00000101, "qsub",
2398 [(set GPR:$Rd, (int_arm_qsub GPR:$Rm, GPR:$Rn))],
2399 (ins GPR:$Rm, GPR:$Rn), "\t$Rd, $Rm, $Rn">;
2400 def QDADD : AAI<0b00010100, 0b00000101, "qdadd", [], (ins GPR:$Rm, GPR:$Rn),
2402 def QDSUB : AAI<0b00010110, 0b00000101, "qdsub", [], (ins GPR:$Rm, GPR:$Rn),
2405 def QADD16 : AAI<0b01100010, 0b11110001, "qadd16">;
2406 def QADD8 : AAI<0b01100010, 0b11111001, "qadd8">;
2407 def QASX : AAI<0b01100010, 0b11110011, "qasx">;
2408 def QSAX : AAI<0b01100010, 0b11110101, "qsax">;
2409 def QSUB16 : AAI<0b01100010, 0b11110111, "qsub16">;
2410 def QSUB8 : AAI<0b01100010, 0b11111111, "qsub8">;
2411 def UQADD16 : AAI<0b01100110, 0b11110001, "uqadd16">;
2412 def UQADD8 : AAI<0b01100110, 0b11111001, "uqadd8">;
2413 def UQASX : AAI<0b01100110, 0b11110011, "uqasx">;
2414 def UQSAX : AAI<0b01100110, 0b11110101, "uqsax">;
2415 def UQSUB16 : AAI<0b01100110, 0b11110111, "uqsub16">;
2416 def UQSUB8 : AAI<0b01100110, 0b11111111, "uqsub8">;
2418 // Signed/Unsigned add/subtract -- for disassembly only
2420 def SASX : AAI<0b01100001, 0b11110011, "sasx">;
2421 def SADD16 : AAI<0b01100001, 0b11110001, "sadd16">;
2422 def SADD8 : AAI<0b01100001, 0b11111001, "sadd8">;
2423 def SSAX : AAI<0b01100001, 0b11110101, "ssax">;
2424 def SSUB16 : AAI<0b01100001, 0b11110111, "ssub16">;
2425 def SSUB8 : AAI<0b01100001, 0b11111111, "ssub8">;
2426 def UASX : AAI<0b01100101, 0b11110011, "uasx">;
2427 def UADD16 : AAI<0b01100101, 0b11110001, "uadd16">;
2428 def UADD8 : AAI<0b01100101, 0b11111001, "uadd8">;
2429 def USAX : AAI<0b01100101, 0b11110101, "usax">;
2430 def USUB16 : AAI<0b01100101, 0b11110111, "usub16">;
2431 def USUB8 : AAI<0b01100101, 0b11111111, "usub8">;
2433 // Signed/Unsigned halving add/subtract -- for disassembly only
2435 def SHASX : AAI<0b01100011, 0b11110011, "shasx">;
2436 def SHADD16 : AAI<0b01100011, 0b11110001, "shadd16">;
2437 def SHADD8 : AAI<0b01100011, 0b11111001, "shadd8">;
2438 def SHSAX : AAI<0b01100011, 0b11110101, "shsax">;
2439 def SHSUB16 : AAI<0b01100011, 0b11110111, "shsub16">;
2440 def SHSUB8 : AAI<0b01100011, 0b11111111, "shsub8">;
2441 def UHASX : AAI<0b01100111, 0b11110011, "uhasx">;
2442 def UHADD16 : AAI<0b01100111, 0b11110001, "uhadd16">;
2443 def UHADD8 : AAI<0b01100111, 0b11111001, "uhadd8">;
2444 def UHSAX : AAI<0b01100111, 0b11110101, "uhsax">;
2445 def UHSUB16 : AAI<0b01100111, 0b11110111, "uhsub16">;
2446 def UHSUB8 : AAI<0b01100111, 0b11111111, "uhsub8">;
2448 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
2450 def USAD8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2451 MulFrm /* for convenience */, NoItinerary, "usad8",
2452 "\t$Rd, $Rn, $Rm", []>,
2453 Requires<[IsARM, HasV6]> {
2457 let Inst{27-20} = 0b01111000;
2458 let Inst{15-12} = 0b1111;
2459 let Inst{7-4} = 0b0001;
2460 let Inst{19-16} = Rd;
2461 let Inst{11-8} = Rm;
2464 def USADA8 : AI<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2465 MulFrm /* for convenience */, NoItinerary, "usada8",
2466 "\t$Rd, $Rn, $Rm, $Ra", []>,
2467 Requires<[IsARM, HasV6]> {
2472 let Inst{27-20} = 0b01111000;
2473 let Inst{7-4} = 0b0001;
2474 let Inst{19-16} = Rd;
2475 let Inst{15-12} = Ra;
2476 let Inst{11-8} = Rm;
2480 // Signed/Unsigned saturate -- for disassembly only
2482 def SSAT : AI<(outs GPR:$Rd), (ins i32imm:$sat_imm, GPR:$a, shift_imm:$sh),
2483 SatFrm, NoItinerary, "ssat", "\t$Rd, $sat_imm, $a$sh",
2484 [/* For disassembly only; pattern left blank */]> {
2489 let Inst{27-21} = 0b0110101;
2490 let Inst{5-4} = 0b01;
2491 let Inst{20-16} = sat_imm;
2492 let Inst{15-12} = Rd;
2493 let Inst{11-7} = sh{7-3};
2494 let Inst{6} = sh{0};
2498 def SSAT16 : AI<(outs GPR:$Rd), (ins i32imm:$sat_imm, GPR:$Rn), SatFrm,
2499 NoItinerary, "ssat16", "\t$Rd, $sat_imm, $Rn",
2500 [/* For disassembly only; pattern left blank */]> {
2504 let Inst{27-20} = 0b01101010;
2505 let Inst{11-4} = 0b11110011;
2506 let Inst{15-12} = Rd;
2507 let Inst{19-16} = sat_imm;
2511 def USAT : AI<(outs GPR:$Rd), (ins i32imm:$sat_imm, GPR:$a, shift_imm:$sh),
2512 SatFrm, NoItinerary, "usat", "\t$Rd, $sat_imm, $a$sh",
2513 [/* For disassembly only; pattern left blank */]> {
2518 let Inst{27-21} = 0b0110111;
2519 let Inst{5-4} = 0b01;
2520 let Inst{15-12} = Rd;
2521 let Inst{11-7} = sh{7-3};
2522 let Inst{6} = sh{0};
2523 let Inst{20-16} = sat_imm;
2527 def USAT16 : AI<(outs GPR:$Rd), (ins i32imm:$sat_imm, GPR:$a), SatFrm,
2528 NoItinerary, "usat16", "\t$Rd, $sat_imm, $a",
2529 [/* For disassembly only; pattern left blank */]> {
2533 let Inst{27-20} = 0b01101110;
2534 let Inst{11-4} = 0b11110011;
2535 let Inst{15-12} = Rd;
2536 let Inst{19-16} = sat_imm;
2540 def : ARMV6Pat<(int_arm_ssat GPR:$a, imm:$pos), (SSAT imm:$pos, GPR:$a, 0)>;
2541 def : ARMV6Pat<(int_arm_usat GPR:$a, imm:$pos), (USAT imm:$pos, GPR:$a, 0)>;
2543 //===----------------------------------------------------------------------===//
2544 // Bitwise Instructions.
2547 defm AND : AsI1_bin_irs<0b0000, "and",
2548 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2549 BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
2550 defm ORR : AsI1_bin_irs<0b1100, "orr",
2551 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2552 BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
2553 defm EOR : AsI1_bin_irs<0b0001, "eor",
2554 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2555 BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
2556 defm BIC : AsI1_bin_irs<0b1110, "bic",
2557 IIC_iBITi, IIC_iBITr, IIC_iBITsr,
2558 BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
2560 def BFC : I<(outs GPR:$Rd), (ins GPR:$src, bf_inv_mask_imm:$imm),
2561 AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
2562 "bfc", "\t$Rd, $imm", "$src = $Rd",
2563 [(set GPR:$Rd, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
2564 Requires<[IsARM, HasV6T2]> {
2567 let Inst{27-21} = 0b0111110;
2568 let Inst{6-0} = 0b0011111;
2569 let Inst{15-12} = Rd;
2570 let Inst{11-7} = imm{4-0}; // lsb
2571 let Inst{20-16} = imm{9-5}; // width
2574 // A8.6.18 BFI - Bitfield insert (Encoding A1)
2575 def BFI : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn, bf_inv_mask_imm:$imm),
2576 AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
2577 "bfi", "\t$Rd, $Rn, $imm", "$src = $Rd",
2578 [(set GPR:$Rd, (ARMbfi GPR:$src, GPR:$Rn,
2579 bf_inv_mask_imm:$imm))]>,
2580 Requires<[IsARM, HasV6T2]> {
2584 let Inst{27-21} = 0b0111110;
2585 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
2586 let Inst{15-12} = Rd;
2587 let Inst{11-7} = imm{4-0}; // lsb
2588 let Inst{20-16} = imm{9-5}; // width
2592 // GNU as only supports this form of bfi (w/ 4 arguments)
2593 let isAsmParserOnly = 1 in
2594 def BFI4p : I<(outs GPR:$Rd), (ins GPR:$src, GPR:$Rn,
2595 lsb_pos_imm:$lsb, width_imm:$width),
2596 AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
2597 "bfi", "\t$Rd, $Rn, $lsb, $width", "$src = $Rd",
2598 []>, Requires<[IsARM, HasV6T2]> {
2603 let Inst{27-21} = 0b0111110;
2604 let Inst{6-4} = 0b001; // Rn: Inst{3-0} != 15
2605 let Inst{15-12} = Rd;
2606 let Inst{11-7} = lsb;
2607 let Inst{20-16} = width; // Custom encoder => lsb+width-1
2611 def MVNr : AsI1<0b1111, (outs GPR:$Rd), (ins GPR:$Rm), DPFrm, IIC_iMVNr,
2612 "mvn", "\t$Rd, $Rm",
2613 [(set GPR:$Rd, (not GPR:$Rm))]>, UnaryDP {
2617 let Inst{19-16} = 0b0000;
2618 let Inst{11-4} = 0b00000000;
2619 let Inst{15-12} = Rd;
2622 def MVNs : AsI1<0b1111, (outs GPR:$Rd), (ins so_reg:$shift), DPSoRegFrm,
2623 IIC_iMVNsr, "mvn", "\t$Rd, $shift",
2624 [(set GPR:$Rd, (not so_reg:$shift))]>, UnaryDP {
2628 let Inst{19-16} = 0b0000;
2629 let Inst{15-12} = Rd;
2630 let Inst{11-0} = shift;
2632 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
2633 def MVNi : AsI1<0b1111, (outs GPR:$Rd), (ins so_imm:$imm), DPFrm,
2634 IIC_iMVNi, "mvn", "\t$Rd, $imm",
2635 [(set GPR:$Rd, so_imm_not:$imm)]>,UnaryDP {
2639 let Inst{19-16} = 0b0000;
2640 let Inst{15-12} = Rd;
2641 let Inst{11-0} = imm;
2644 def : ARMPat<(and GPR:$src, so_imm_not:$imm),
2645 (BICri GPR:$src, so_imm_not:$imm)>;
2647 //===----------------------------------------------------------------------===//
2648 // Multiply Instructions.
2650 class AsMul1I32<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
2651 string opc, string asm, list<dag> pattern>
2652 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
2656 let Inst{19-16} = Rd;
2657 let Inst{11-8} = Rm;
2660 class AsMul1I64<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
2661 string opc, string asm, list<dag> pattern>
2662 : AsMul1I<opcod, oops, iops, itin, opc, asm, pattern> {
2667 let Inst{19-16} = RdHi;
2668 let Inst{15-12} = RdLo;
2669 let Inst{11-8} = Rm;
2673 let isCommutable = 1 in {
2674 let Constraints = "@earlyclobber $Rd" in
2675 def MULv5: ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm,
2676 pred:$p, cc_out:$s),
2677 Size4Bytes, IIC_iMUL32,
2678 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))]>,
2679 Requires<[IsARM, NoV6]>;
2681 def MUL : AsMul1I32<0b0000000, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2682 IIC_iMUL32, "mul", "\t$Rd, $Rn, $Rm",
2683 [(set GPR:$Rd, (mul GPR:$Rn, GPR:$Rm))]>,
2684 Requires<[IsARM, HasV6]>;
2687 let Constraints = "@earlyclobber $Rd" in
2688 def MLAv5: ARMPseudoInst<(outs GPR:$Rd),
2689 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra, pred:$p, cc_out:$s),
2690 Size4Bytes, IIC_iMAC32,
2691 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
2692 Requires<[IsARM, NoV6]> {
2694 let Inst{15-12} = Ra;
2696 def MLA : AsMul1I32<0b0000001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2697 IIC_iMAC32, "mla", "\t$Rd, $Rn, $Rm, $Ra",
2698 [(set GPR:$Rd, (add (mul GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
2699 Requires<[IsARM, HasV6]> {
2701 let Inst{15-12} = Ra;
2704 def MLS : AMul1I<0b0000011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2705 IIC_iMAC32, "mls", "\t$Rd, $Rn, $Rm, $Ra",
2706 [(set GPR:$Rd, (sub GPR:$Ra, (mul GPR:$Rn, GPR:$Rm)))]>,
2707 Requires<[IsARM, HasV6T2]> {
2712 let Inst{19-16} = Rd;
2713 let Inst{15-12} = Ra;
2714 let Inst{11-8} = Rm;
2718 // Extra precision multiplies with low / high results
2720 let neverHasSideEffects = 1 in {
2721 let isCommutable = 1 in {
2722 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
2723 def SMULLv5 : ARMPseudoInst<(outs GPR:$RdLo, GPR:$RdHi),
2724 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
2725 Size4Bytes, IIC_iMUL64, []>,
2726 Requires<[IsARM, NoV6]>;
2728 def UMULLv5 : ARMPseudoInst<(outs GPR:$RdLo, GPR:$RdHi),
2729 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
2730 Size4Bytes, IIC_iMUL64, []>,
2731 Requires<[IsARM, NoV6]>;
2734 def SMULL : AsMul1I64<0b0000110, (outs GPR:$RdLo, GPR:$RdHi),
2735 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
2736 "smull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2737 Requires<[IsARM, HasV6]>;
2739 def UMULL : AsMul1I64<0b0000100, (outs GPR:$RdLo, GPR:$RdHi),
2740 (ins GPR:$Rn, GPR:$Rm), IIC_iMUL64,
2741 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2742 Requires<[IsARM, HasV6]>;
2745 // Multiply + accumulate
2746 let Constraints = "@earlyclobber $RdLo,@earlyclobber $RdHi" in {
2747 def SMLALv5 : ARMPseudoInst<(outs GPR:$RdLo, GPR:$RdHi),
2748 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
2749 Size4Bytes, IIC_iMAC64, []>,
2750 Requires<[IsARM, NoV6]>;
2751 def UMLALv5 : ARMPseudoInst<(outs GPR:$RdLo, GPR:$RdHi),
2752 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
2753 Size4Bytes, IIC_iMAC64, []>,
2754 Requires<[IsARM, NoV6]>;
2755 def UMAALv5 : ARMPseudoInst<(outs GPR:$RdLo, GPR:$RdHi),
2756 (ins GPR:$Rn, GPR:$Rm, pred:$p, cc_out:$s),
2757 Size4Bytes, IIC_iMAC64, []>,
2758 Requires<[IsARM, NoV6]>;
2762 def SMLAL : AsMul1I64<0b0000111, (outs GPR:$RdLo, GPR:$RdHi),
2763 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
2764 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2765 Requires<[IsARM, HasV6]>;
2766 def UMLAL : AsMul1I64<0b0000101, (outs GPR:$RdLo, GPR:$RdHi),
2767 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
2768 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2769 Requires<[IsARM, HasV6]>;
2771 def UMAAL : AMul1I <0b0000010, (outs GPR:$RdLo, GPR:$RdHi),
2772 (ins GPR:$Rn, GPR:$Rm), IIC_iMAC64,
2773 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2774 Requires<[IsARM, HasV6]> {
2779 let Inst{19-16} = RdLo;
2780 let Inst{15-12} = RdHi;
2781 let Inst{11-8} = Rm;
2784 } // neverHasSideEffects
2786 // Most significant word multiply
2787 def SMMUL : AMul2I <0b0111010, 0b0001, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2788 IIC_iMUL32, "smmul", "\t$Rd, $Rn, $Rm",
2789 [(set GPR:$Rd, (mulhs GPR:$Rn, GPR:$Rm))]>,
2790 Requires<[IsARM, HasV6]> {
2791 let Inst{15-12} = 0b1111;
2794 def SMMULR : AMul2I <0b0111010, 0b0011, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2795 IIC_iMUL32, "smmulr", "\t$Rd, $Rn, $Rm",
2796 [/* For disassembly only; pattern left blank */]>,
2797 Requires<[IsARM, HasV6]> {
2798 let Inst{15-12} = 0b1111;
2801 def SMMLA : AMul2Ia <0b0111010, 0b0001, (outs GPR:$Rd),
2802 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2803 IIC_iMAC32, "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2804 [(set GPR:$Rd, (add (mulhs GPR:$Rn, GPR:$Rm), GPR:$Ra))]>,
2805 Requires<[IsARM, HasV6]>;
2807 def SMMLAR : AMul2Ia <0b0111010, 0b0011, (outs GPR:$Rd),
2808 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2809 IIC_iMAC32, "smmlar", "\t$Rd, $Rn, $Rm, $Ra",
2810 [/* For disassembly only; pattern left blank */]>,
2811 Requires<[IsARM, HasV6]>;
2813 def SMMLS : AMul2Ia <0b0111010, 0b1101, (outs GPR:$Rd),
2814 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2815 IIC_iMAC32, "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2816 [(set GPR:$Rd, (sub GPR:$Ra, (mulhs GPR:$Rn, GPR:$Rm)))]>,
2817 Requires<[IsARM, HasV6]>;
2819 def SMMLSR : AMul2Ia <0b0111010, 0b1111, (outs GPR:$Rd),
2820 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2821 IIC_iMAC32, "smmlsr", "\t$Rd, $Rn, $Rm, $Ra",
2822 [/* For disassembly only; pattern left blank */]>,
2823 Requires<[IsARM, HasV6]>;
2825 multiclass AI_smul<string opc, PatFrag opnode> {
2826 def BB : AMulxyI<0b0001011, 0b00, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2827 IIC_iMUL16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2828 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
2829 (sext_inreg GPR:$Rm, i16)))]>,
2830 Requires<[IsARM, HasV5TE]>;
2832 def BT : AMulxyI<0b0001011, 0b10, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2833 IIC_iMUL16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2834 [(set GPR:$Rd, (opnode (sext_inreg GPR:$Rn, i16),
2835 (sra GPR:$Rm, (i32 16))))]>,
2836 Requires<[IsARM, HasV5TE]>;
2838 def TB : AMulxyI<0b0001011, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2839 IIC_iMUL16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2840 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
2841 (sext_inreg GPR:$Rm, i16)))]>,
2842 Requires<[IsARM, HasV5TE]>;
2844 def TT : AMulxyI<0b0001011, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2845 IIC_iMUL16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2846 [(set GPR:$Rd, (opnode (sra GPR:$Rn, (i32 16)),
2847 (sra GPR:$Rm, (i32 16))))]>,
2848 Requires<[IsARM, HasV5TE]>;
2850 def WB : AMulxyI<0b0001001, 0b01, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2851 IIC_iMUL16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2852 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
2853 (sext_inreg GPR:$Rm, i16)), (i32 16)))]>,
2854 Requires<[IsARM, HasV5TE]>;
2856 def WT : AMulxyI<0b0001001, 0b11, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2857 IIC_iMUL16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2858 [(set GPR:$Rd, (sra (opnode GPR:$Rn,
2859 (sra GPR:$Rm, (i32 16))), (i32 16)))]>,
2860 Requires<[IsARM, HasV5TE]>;
2864 multiclass AI_smla<string opc, PatFrag opnode> {
2865 def BB : AMulxyIa<0b0001000, 0b00, (outs GPR:$Rd),
2866 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2867 IIC_iMAC16, !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2868 [(set GPR:$Rd, (add GPR:$Ra,
2869 (opnode (sext_inreg GPR:$Rn, i16),
2870 (sext_inreg GPR:$Rm, i16))))]>,
2871 Requires<[IsARM, HasV5TE]>;
2873 def BT : AMulxyIa<0b0001000, 0b10, (outs GPR:$Rd),
2874 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2875 IIC_iMAC16, !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2876 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sext_inreg GPR:$Rn, i16),
2877 (sra GPR:$Rm, (i32 16)))))]>,
2878 Requires<[IsARM, HasV5TE]>;
2880 def TB : AMulxyIa<0b0001000, 0b01, (outs GPR:$Rd),
2881 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2882 IIC_iMAC16, !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2883 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
2884 (sext_inreg GPR:$Rm, i16))))]>,
2885 Requires<[IsARM, HasV5TE]>;
2887 def TT : AMulxyIa<0b0001000, 0b11, (outs GPR:$Rd),
2888 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2889 IIC_iMAC16, !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2890 [(set GPR:$Rd, (add GPR:$Ra, (opnode (sra GPR:$Rn, (i32 16)),
2891 (sra GPR:$Rm, (i32 16)))))]>,
2892 Requires<[IsARM, HasV5TE]>;
2894 def WB : AMulxyIa<0b0001001, 0b00, (outs GPR:$Rd),
2895 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2896 IIC_iMAC16, !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2897 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
2898 (sext_inreg GPR:$Rm, i16)), (i32 16))))]>,
2899 Requires<[IsARM, HasV5TE]>;
2901 def WT : AMulxyIa<0b0001001, 0b10, (outs GPR:$Rd),
2902 (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2903 IIC_iMAC16, !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2904 [(set GPR:$Rd, (add GPR:$Ra, (sra (opnode GPR:$Rn,
2905 (sra GPR:$Rm, (i32 16))), (i32 16))))]>,
2906 Requires<[IsARM, HasV5TE]>;
2909 defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2910 defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2912 // Halfword multiply accumulate long: SMLAL<x><y> -- for disassembly only
2913 def SMLALBB : AMulxyI64<0b0001010, 0b00, (outs GPR:$RdLo, GPR:$RdHi),
2914 (ins GPR:$Rn, GPR:$Rm),
2915 IIC_iMAC64, "smlalbb", "\t$RdLo, $RdHi, $Rn, $Rm",
2916 [/* For disassembly only; pattern left blank */]>,
2917 Requires<[IsARM, HasV5TE]>;
2919 def SMLALBT : AMulxyI64<0b0001010, 0b10, (outs GPR:$RdLo, GPR:$RdHi),
2920 (ins GPR:$Rn, GPR:$Rm),
2921 IIC_iMAC64, "smlalbt", "\t$RdLo, $RdHi, $Rn, $Rm",
2922 [/* For disassembly only; pattern left blank */]>,
2923 Requires<[IsARM, HasV5TE]>;
2925 def SMLALTB : AMulxyI64<0b0001010, 0b01, (outs GPR:$RdLo, GPR:$RdHi),
2926 (ins GPR:$Rn, GPR:$Rm),
2927 IIC_iMAC64, "smlaltb", "\t$RdLo, $RdHi, $Rn, $Rm",
2928 [/* For disassembly only; pattern left blank */]>,
2929 Requires<[IsARM, HasV5TE]>;
2931 def SMLALTT : AMulxyI64<0b0001010, 0b11, (outs GPR:$RdLo, GPR:$RdHi),
2932 (ins GPR:$Rn, GPR:$Rm),
2933 IIC_iMAC64, "smlaltt", "\t$RdLo, $RdHi, $Rn, $Rm",
2934 [/* For disassembly only; pattern left blank */]>,
2935 Requires<[IsARM, HasV5TE]>;
2937 // Helper class for AI_smld -- for disassembly only
2938 class AMulDualIbase<bit long, bit sub, bit swap, dag oops, dag iops,
2939 InstrItinClass itin, string opc, string asm>
2940 : AI<oops, iops, MulFrm, itin, opc, asm, []>, Requires<[IsARM, HasV6]> {
2947 let Inst{21-20} = 0b00;
2948 let Inst{22} = long;
2949 let Inst{27-23} = 0b01110;
2950 let Inst{11-8} = Rm;
2953 class AMulDualI<bit long, bit sub, bit swap, dag oops, dag iops,
2954 InstrItinClass itin, string opc, string asm>
2955 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
2957 let Inst{15-12} = 0b1111;
2958 let Inst{19-16} = Rd;
2960 class AMulDualIa<bit long, bit sub, bit swap, dag oops, dag iops,
2961 InstrItinClass itin, string opc, string asm>
2962 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
2964 let Inst{15-12} = Ra;
2966 class AMulDualI64<bit long, bit sub, bit swap, dag oops, dag iops,
2967 InstrItinClass itin, string opc, string asm>
2968 : AMulDualIbase<long, sub, swap, oops, iops, itin, opc, asm> {
2971 let Inst{19-16} = RdHi;
2972 let Inst{15-12} = RdLo;
2975 multiclass AI_smld<bit sub, string opc> {
2977 def D : AMulDualIa<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2978 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm, $Ra">;
2980 def DX: AMulDualIa<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm, GPR:$Ra),
2981 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm, $Ra">;
2983 def LD: AMulDualI64<1, sub, 0, (outs GPR:$RdLo,GPR:$RdHi),
2984 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
2985 !strconcat(opc, "ld"), "\t$RdLo, $RdHi, $Rn, $Rm">;
2987 def LDX : AMulDualI64<1, sub, 1, (outs GPR:$RdLo,GPR:$RdHi),
2988 (ins GPR:$Rn, GPR:$Rm), NoItinerary,
2989 !strconcat(opc, "ldx"),"\t$RdLo, $RdHi, $Rn, $Rm">;
2993 defm SMLA : AI_smld<0, "smla">;
2994 defm SMLS : AI_smld<1, "smls">;
2996 multiclass AI_sdml<bit sub, string opc> {
2998 def D : AMulDualI<0, sub, 0, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
2999 NoItinerary, !strconcat(opc, "d"), "\t$Rd, $Rn, $Rm">;
3000 def DX : AMulDualI<0, sub, 1, (outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
3001 NoItinerary, !strconcat(opc, "dx"), "\t$Rd, $Rn, $Rm">;
3004 defm SMUA : AI_sdml<0, "smua">;
3005 defm SMUS : AI_sdml<1, "smus">;
3007 //===----------------------------------------------------------------------===//
3008 // Misc. Arithmetic Instructions.
3011 def CLZ : AMiscA1I<0b000010110, 0b0001, (outs GPR:$Rd), (ins GPR:$Rm),
3012 IIC_iUNAr, "clz", "\t$Rd, $Rm",
3013 [(set GPR:$Rd, (ctlz GPR:$Rm))]>, Requires<[IsARM, HasV5T]>;
3015 def RBIT : AMiscA1I<0b01101111, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3016 IIC_iUNAr, "rbit", "\t$Rd, $Rm",
3017 [(set GPR:$Rd, (ARMrbit GPR:$Rm))]>,
3018 Requires<[IsARM, HasV6T2]>;
3020 def REV : AMiscA1I<0b01101011, 0b0011, (outs GPR:$Rd), (ins GPR:$Rm),
3021 IIC_iUNAr, "rev", "\t$Rd, $Rm",
3022 [(set GPR:$Rd, (bswap GPR:$Rm))]>, Requires<[IsARM, HasV6]>;
3024 def REV16 : AMiscA1I<0b01101011, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3025 IIC_iUNAr, "rev16", "\t$Rd, $Rm",
3027 (or (and (srl GPR:$Rm, (i32 8)), 0xFF),
3028 (or (and (shl GPR:$Rm, (i32 8)), 0xFF00),
3029 (or (and (srl GPR:$Rm, (i32 8)), 0xFF0000),
3030 (and (shl GPR:$Rm, (i32 8)), 0xFF000000)))))]>,
3031 Requires<[IsARM, HasV6]>;
3033 def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm),
3034 IIC_iUNAr, "revsh", "\t$Rd, $Rm",
3037 (or (srl GPR:$Rm, (i32 8)),
3038 (shl GPR:$Rm, (i32 8))), i16))]>,
3039 Requires<[IsARM, HasV6]>;
3041 def : ARMV6Pat<(sext_inreg (or (srl (and GPR:$Rm, 0xFF00), (i32 8)),
3042 (shl GPR:$Rm, (i32 8))), i16),
3045 // Need the AddedComplexity or else MOVs + REV would be chosen.
3046 let AddedComplexity = 5 in
3047 def : ARMV6Pat<(sra (bswap GPR:$Rm), (i32 16)), (REVSH GPR:$Rm)>;
3049 def lsl_shift_imm : SDNodeXForm<imm, [{
3050 unsigned Sh = ARM_AM::getSORegOpc(ARM_AM::lsl, N->getZExtValue());
3051 return CurDAG->getTargetConstant(Sh, MVT::i32);
3054 def lsl_amt : PatLeaf<(i32 imm), [{
3055 return (N->getZExtValue() < 32);
3058 def PKHBT : APKHI<0b01101000, 0, (outs GPR:$Rd),
3059 (ins GPR:$Rn, GPR:$Rm, shift_imm:$sh),
3060 IIC_iALUsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh",
3061 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF),
3062 (and (shl GPR:$Rm, lsl_amt:$sh),
3064 Requires<[IsARM, HasV6]>;
3066 // Alternate cases for PKHBT where identities eliminate some nodes.
3067 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (and GPR:$Rm, 0xFFFF0000)),
3068 (PKHBT GPR:$Rn, GPR:$Rm, 0)>;
3069 def : ARMV6Pat<(or (and GPR:$Rn, 0xFFFF), (shl GPR:$Rm, imm16_31:$sh)),
3070 (PKHBT GPR:$Rn, GPR:$Rm, (lsl_shift_imm imm16_31:$sh))>;
3072 def asr_shift_imm : SDNodeXForm<imm, [{
3073 unsigned Sh = ARM_AM::getSORegOpc(ARM_AM::asr, N->getZExtValue());
3074 return CurDAG->getTargetConstant(Sh, MVT::i32);
3077 def asr_amt : PatLeaf<(i32 imm), [{
3078 return (N->getZExtValue() <= 32);
3081 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
3082 // will match the pattern below.
3083 def PKHTB : APKHI<0b01101000, 1, (outs GPR:$Rd),
3084 (ins GPR:$Rn, GPR:$Rm, shift_imm:$sh),
3085 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm$sh",
3086 [(set GPR:$Rd, (or (and GPR:$Rn, 0xFFFF0000),
3087 (and (sra GPR:$Rm, asr_amt:$sh),
3089 Requires<[IsARM, HasV6]>;
3091 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
3092 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
3093 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, imm16_31:$sh)),
3094 (PKHTB GPR:$src1, GPR:$src2, (asr_shift_imm imm16_31:$sh))>;
3095 def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000),
3096 (and (srl GPR:$src2, imm1_15:$sh), 0xFFFF)),
3097 (PKHTB GPR:$src1, GPR:$src2, (asr_shift_imm imm1_15:$sh))>;
3099 //===----------------------------------------------------------------------===//
3100 // Comparison Instructions...
3103 defm CMP : AI1_cmp_irs<0b1010, "cmp",
3104 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3105 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
3107 // ARMcmpZ can re-use the above instruction definitions.
3108 def : ARMPat<(ARMcmpZ GPR:$src, so_imm:$imm),
3109 (CMPri GPR:$src, so_imm:$imm)>;
3110 def : ARMPat<(ARMcmpZ GPR:$src, GPR:$rhs),
3111 (CMPrr GPR:$src, GPR:$rhs)>;
3112 def : ARMPat<(ARMcmpZ GPR:$src, so_reg:$rhs),
3113 (CMPrs GPR:$src, so_reg:$rhs)>;
3115 // FIXME: We have to be careful when using the CMN instruction and comparison
3116 // with 0. One would expect these two pieces of code should give identical
3132 // However, the CMN gives the *opposite* result when r1 is 0. This is because
3133 // the carry flag is set in the CMP case but not in the CMN case. In short, the
3134 // CMP instruction doesn't perform a truncate of the (logical) NOT of 0 plus the
3135 // value of r0 and the carry bit (because the "carry bit" parameter to
3136 // AddWithCarry is defined as 1 in this case, the carry flag will always be set
3137 // when r0 >= 0). The CMN instruction doesn't perform a NOT of 0 so there is
3138 // never a "carry" when this AddWithCarry is performed (because the "carry bit"
3139 // parameter to AddWithCarry is defined as 0).
3141 // When x is 0 and unsigned:
3145 // ~x + 1 = 0x1 0000 0000
3146 // (-x = 0) != (0x1 0000 0000 = ~x + 1)
3148 // Therefore, we should disable CMN when comparing against zero, until we can
3149 // limit when the CMN instruction is used (when we know that the RHS is not 0 or
3150 // when it's a comparison which doesn't look at the 'carry' flag).
3152 // (See the ARM docs for the "AddWithCarry" pseudo-code.)
3154 // This is related to <rdar://problem/7569620>.
3156 //defm CMN : AI1_cmp_irs<0b1011, "cmn",
3157 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
3159 // Note that TST/TEQ don't set all the same flags that CMP does!
3160 defm TST : AI1_cmp_irs<0b1000, "tst",
3161 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3162 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>, 1>;
3163 defm TEQ : AI1_cmp_irs<0b1001, "teq",
3164 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsr,
3165 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>, 1>;
3167 defm CMNz : AI1_cmp_irs<0b1011, "cmn",
3168 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsr,
3169 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
3171 //def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
3172 // (CMNri GPR:$src, so_imm_neg:$imm)>;
3174 def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
3175 (CMNzri GPR:$src, so_imm_neg:$imm)>;
3177 // Pseudo i64 compares for some floating point compares.
3178 let usesCustomInserter = 1, isBranch = 1, isTerminator = 1,
3180 def BCCi64 : PseudoInst<(outs),
3181 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, brtarget:$dst),
3183 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, GPR:$rhs1, GPR:$rhs2, bb:$dst)]>;
3185 def BCCZi64 : PseudoInst<(outs),
3186 (ins i32imm:$cc, GPR:$lhs1, GPR:$lhs2, brtarget:$dst), IIC_Br,
3187 [(ARMBcci64 imm:$cc, GPR:$lhs1, GPR:$lhs2, 0, 0, bb:$dst)]>;
3188 } // usesCustomInserter
3191 // Conditional moves
3192 // FIXME: should be able to write a pattern for ARMcmov, but can't use
3193 // a two-value operand where a dag node expects two operands. :(
3194 let neverHasSideEffects = 1 in {
3195 def MOVCCr : ARMPseudoInst<(outs GPR:$Rd), (ins GPR:$false, GPR:$Rm, pred:$p),
3196 Size4Bytes, IIC_iCMOVr,
3197 [/*(set GPR:$Rd, (ARMcmov GPR:$false, GPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
3198 RegConstraint<"$false = $Rd">;
3199 def MOVCCs : ARMPseudoInst<(outs GPR:$Rd),
3200 (ins GPR:$false, so_reg:$shift, pred:$p),
3201 Size4Bytes, IIC_iCMOVsr,
3202 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_reg:$shift, imm:$cc, CCR:$ccr))*/]>,
3203 RegConstraint<"$false = $Rd">;
3205 let isMoveImm = 1 in
3206 def MOVCCi16 : ARMPseudoInst<(outs GPR:$Rd),
3207 (ins GPR:$false, i32imm_hilo16:$imm, pred:$p),
3208 Size4Bytes, IIC_iMOVi,
3210 RegConstraint<"$false = $Rd">, Requires<[IsARM, HasV6T2]>;
3212 let isMoveImm = 1 in
3213 def MOVCCi : ARMPseudoInst<(outs GPR:$Rd),
3214 (ins GPR:$false, so_imm:$imm, pred:$p),
3215 Size4Bytes, IIC_iCMOVi,
3216 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
3217 RegConstraint<"$false = $Rd">;
3219 // Two instruction predicate mov immediate.
3220 let isMoveImm = 1 in
3221 def MOVCCi32imm : ARMPseudoInst<(outs GPR:$Rd),
3222 (ins GPR:$false, i32imm:$src, pred:$p),
3223 Size8Bytes, IIC_iCMOVix2, []>, RegConstraint<"$false = $Rd">;
3225 let isMoveImm = 1 in
3226 def MVNCCi : ARMPseudoInst<(outs GPR:$Rd),
3227 (ins GPR:$false, so_imm:$imm, pred:$p),
3228 Size4Bytes, IIC_iCMOVi,
3229 [/*(set GPR:$Rd, (ARMcmov GPR:$false, so_imm_not:$imm, imm:$cc, CCR:$ccr))*/]>,
3230 RegConstraint<"$false = $Rd">;
3231 } // neverHasSideEffects
3233 //===----------------------------------------------------------------------===//
3234 // Atomic operations intrinsics
3237 def memb_opt : Operand<i32> {
3238 let PrintMethod = "printMemBOption";
3239 let ParserMatchClass = MemBarrierOptOperand;
3242 // memory barriers protect the atomic sequences
3243 let hasSideEffects = 1 in {
3244 def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3245 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
3246 Requires<[IsARM, HasDB]> {
3248 let Inst{31-4} = 0xf57ff05;
3249 let Inst{3-0} = opt;
3253 def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary,
3255 [/* For disassembly only; pattern left blank */]>,
3256 Requires<[IsARM, HasDB]> {
3258 let Inst{31-4} = 0xf57ff04;
3259 let Inst{3-0} = opt;
3262 // ISB has only full system option -- for disassembly only
3263 def ISB : AInoP<(outs), (ins), MiscFrm, NoItinerary, "isb", "", []>,
3264 Requires<[IsARM, HasDB]> {
3265 let Inst{31-4} = 0xf57ff06;
3266 let Inst{3-0} = 0b1111;
3269 let usesCustomInserter = 1 in {
3270 let Uses = [CPSR] in {
3271 def ATOMIC_LOAD_ADD_I8 : PseudoInst<
3272 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3273 [(set GPR:$dst, (atomic_load_add_8 GPR:$ptr, GPR:$incr))]>;
3274 def ATOMIC_LOAD_SUB_I8 : PseudoInst<
3275 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3276 [(set GPR:$dst, (atomic_load_sub_8 GPR:$ptr, GPR:$incr))]>;
3277 def ATOMIC_LOAD_AND_I8 : PseudoInst<
3278 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3279 [(set GPR:$dst, (atomic_load_and_8 GPR:$ptr, GPR:$incr))]>;
3280 def ATOMIC_LOAD_OR_I8 : PseudoInst<
3281 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3282 [(set GPR:$dst, (atomic_load_or_8 GPR:$ptr, GPR:$incr))]>;
3283 def ATOMIC_LOAD_XOR_I8 : PseudoInst<
3284 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3285 [(set GPR:$dst, (atomic_load_xor_8 GPR:$ptr, GPR:$incr))]>;
3286 def ATOMIC_LOAD_NAND_I8 : PseudoInst<
3287 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3288 [(set GPR:$dst, (atomic_load_nand_8 GPR:$ptr, GPR:$incr))]>;
3289 def ATOMIC_LOAD_ADD_I16 : PseudoInst<
3290 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3291 [(set GPR:$dst, (atomic_load_add_16 GPR:$ptr, GPR:$incr))]>;
3292 def ATOMIC_LOAD_SUB_I16 : PseudoInst<
3293 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3294 [(set GPR:$dst, (atomic_load_sub_16 GPR:$ptr, GPR:$incr))]>;
3295 def ATOMIC_LOAD_AND_I16 : PseudoInst<
3296 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3297 [(set GPR:$dst, (atomic_load_and_16 GPR:$ptr, GPR:$incr))]>;
3298 def ATOMIC_LOAD_OR_I16 : PseudoInst<
3299 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3300 [(set GPR:$dst, (atomic_load_or_16 GPR:$ptr, GPR:$incr))]>;
3301 def ATOMIC_LOAD_XOR_I16 : PseudoInst<
3302 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3303 [(set GPR:$dst, (atomic_load_xor_16 GPR:$ptr, GPR:$incr))]>;
3304 def ATOMIC_LOAD_NAND_I16 : PseudoInst<
3305 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3306 [(set GPR:$dst, (atomic_load_nand_16 GPR:$ptr, GPR:$incr))]>;
3307 def ATOMIC_LOAD_ADD_I32 : PseudoInst<
3308 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3309 [(set GPR:$dst, (atomic_load_add_32 GPR:$ptr, GPR:$incr))]>;
3310 def ATOMIC_LOAD_SUB_I32 : PseudoInst<
3311 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3312 [(set GPR:$dst, (atomic_load_sub_32 GPR:$ptr, GPR:$incr))]>;
3313 def ATOMIC_LOAD_AND_I32 : PseudoInst<
3314 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3315 [(set GPR:$dst, (atomic_load_and_32 GPR:$ptr, GPR:$incr))]>;
3316 def ATOMIC_LOAD_OR_I32 : PseudoInst<
3317 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3318 [(set GPR:$dst, (atomic_load_or_32 GPR:$ptr, GPR:$incr))]>;
3319 def ATOMIC_LOAD_XOR_I32 : PseudoInst<
3320 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3321 [(set GPR:$dst, (atomic_load_xor_32 GPR:$ptr, GPR:$incr))]>;
3322 def ATOMIC_LOAD_NAND_I32 : PseudoInst<
3323 (outs GPR:$dst), (ins GPR:$ptr, GPR:$incr), NoItinerary,
3324 [(set GPR:$dst, (atomic_load_nand_32 GPR:$ptr, GPR:$incr))]>;
3326 def ATOMIC_SWAP_I8 : PseudoInst<
3327 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3328 [(set GPR:$dst, (atomic_swap_8 GPR:$ptr, GPR:$new))]>;
3329 def ATOMIC_SWAP_I16 : PseudoInst<
3330 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3331 [(set GPR:$dst, (atomic_swap_16 GPR:$ptr, GPR:$new))]>;
3332 def ATOMIC_SWAP_I32 : PseudoInst<
3333 (outs GPR:$dst), (ins GPR:$ptr, GPR:$new), NoItinerary,
3334 [(set GPR:$dst, (atomic_swap_32 GPR:$ptr, GPR:$new))]>;
3336 def ATOMIC_CMP_SWAP_I8 : PseudoInst<
3337 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3338 [(set GPR:$dst, (atomic_cmp_swap_8 GPR:$ptr, GPR:$old, GPR:$new))]>;
3339 def ATOMIC_CMP_SWAP_I16 : PseudoInst<
3340 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3341 [(set GPR:$dst, (atomic_cmp_swap_16 GPR:$ptr, GPR:$old, GPR:$new))]>;
3342 def ATOMIC_CMP_SWAP_I32 : PseudoInst<
3343 (outs GPR:$dst), (ins GPR:$ptr, GPR:$old, GPR:$new), NoItinerary,
3344 [(set GPR:$dst, (atomic_cmp_swap_32 GPR:$ptr, GPR:$old, GPR:$new))]>;
3348 let mayLoad = 1 in {
3349 def LDREXB : AIldrex<0b10, (outs GPR:$Rt), (ins addrmode7:$addr), NoItinerary,
3350 "ldrexb", "\t$Rt, $addr", []>;
3351 def LDREXH : AIldrex<0b11, (outs GPR:$Rt), (ins addrmode7:$addr), NoItinerary,
3352 "ldrexh", "\t$Rt, $addr", []>;
3353 def LDREX : AIldrex<0b00, (outs GPR:$Rt), (ins addrmode7:$addr), NoItinerary,
3354 "ldrex", "\t$Rt, $addr", []>;
3355 def LDREXD : AIldrex<0b01, (outs GPR:$Rt, GPR:$Rt2), (ins addrmode7:$addr),
3356 NoItinerary, "ldrexd", "\t$Rt, $Rt2, $addr", []>;
3359 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
3360 def STREXB : AIstrex<0b10, (outs GPR:$Rd), (ins GPR:$Rt, addrmode7:$addr),
3361 NoItinerary, "strexb", "\t$Rd, $Rt, $addr", []>;
3362 def STREXH : AIstrex<0b11, (outs GPR:$Rd), (ins GPR:$Rt, addrmode7:$addr),
3363 NoItinerary, "strexh", "\t$Rd, $Rt, $addr", []>;
3364 def STREX : AIstrex<0b00, (outs GPR:$Rd), (ins GPR:$Rt, addrmode7:$addr),
3365 NoItinerary, "strex", "\t$Rd, $Rt, $addr", []>;
3366 def STREXD : AIstrex<0b01, (outs GPR:$Rd),
3367 (ins GPR:$Rt, GPR:$Rt2, addrmode7:$addr),
3368 NoItinerary, "strexd", "\t$Rd, $Rt, $Rt2, $addr", []>;
3371 // Clear-Exclusive is for disassembly only.
3372 def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex",
3373 [/* For disassembly only; pattern left blank */]>,
3374 Requires<[IsARM, HasV7]> {
3375 let Inst{31-0} = 0b11110101011111111111000000011111;
3378 // SWP/SWPB are deprecated in V6/V7 and for disassembly only.
3379 let mayLoad = 1 in {
3380 def SWP : AIswp<0, (outs GPR:$Rt), (ins GPR:$Rt2, GPR:$Rn), "swp",
3381 [/* For disassembly only; pattern left blank */]>;
3382 def SWPB : AIswp<1, (outs GPR:$Rt), (ins GPR:$Rt2, GPR:$Rn), "swpb",
3383 [/* For disassembly only; pattern left blank */]>;
3386 //===----------------------------------------------------------------------===//
3387 // Coprocessor Instructions.
3390 def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, i32imm:$opc1,
3391 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, i32imm:$opc2),
3392 NoItinerary, "cdp", "\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3393 [/* For disassembly only; pattern left blank */]> {
3401 let Inst{3-0} = CRm;
3403 let Inst{7-5} = opc2;
3404 let Inst{11-8} = cop;
3405 let Inst{15-12} = CRd;
3406 let Inst{19-16} = CRn;
3407 let Inst{23-20} = opc1;
3410 def CDP2 : ABXI<0b1110, (outs), (ins p_imm:$cop, i32imm:$opc1,
3411 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, i32imm:$opc2),
3412 NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3413 [/* For disassembly only; pattern left blank */]> {
3414 let Inst{31-28} = 0b1111;
3422 let Inst{3-0} = CRm;
3424 let Inst{7-5} = opc2;
3425 let Inst{11-8} = cop;
3426 let Inst{15-12} = CRd;
3427 let Inst{19-16} = CRn;
3428 let Inst{23-20} = opc1;
3431 class ACI<dag oops, dag iops, string opc, string asm,
3432 IndexMode im = IndexModeNone>
3433 : I<oops, iops, AddrModeNone, Size4Bytes, im, BrFrm, NoItinerary,
3434 opc, asm, "", [/* For disassembly only; pattern left blank */]> {
3435 let Inst{27-25} = 0b110;
3438 multiclass LdStCop<bits<4> op31_28, bit load, string opc> {
3440 def _OFFSET : ACI<(outs),
3441 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3442 opc, "\tp$cop, cr$CRd, $addr"> {
3443 let Inst{31-28} = op31_28;
3444 let Inst{24} = 1; // P = 1
3445 let Inst{21} = 0; // W = 0
3446 let Inst{22} = 0; // D = 0
3447 let Inst{20} = load;
3450 def _PRE : ACI<(outs),
3451 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3452 opc, "\tp$cop, cr$CRd, $addr!", IndexModePre> {
3453 let Inst{31-28} = op31_28;
3454 let Inst{24} = 1; // P = 1
3455 let Inst{21} = 1; // W = 1
3456 let Inst{22} = 0; // D = 0
3457 let Inst{20} = load;
3460 def _POST : ACI<(outs),
3461 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3462 opc, "\tp$cop, cr$CRd, $addr", IndexModePost> {
3463 let Inst{31-28} = op31_28;
3464 let Inst{24} = 0; // P = 0
3465 let Inst{21} = 1; // W = 1
3466 let Inst{22} = 0; // D = 0
3467 let Inst{20} = load;
3470 def _OPTION : ACI<(outs),
3471 (ins nohash_imm:$cop, nohash_imm:$CRd, GPR:$base, nohash_imm:$option),
3472 opc, "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3473 let Inst{31-28} = op31_28;
3474 let Inst{24} = 0; // P = 0
3475 let Inst{23} = 1; // U = 1
3476 let Inst{21} = 0; // W = 0
3477 let Inst{22} = 0; // D = 0
3478 let Inst{20} = load;
3481 def L_OFFSET : ACI<(outs),
3482 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3483 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr"> {
3484 let Inst{31-28} = op31_28;
3485 let Inst{24} = 1; // P = 1
3486 let Inst{21} = 0; // W = 0
3487 let Inst{22} = 1; // D = 1
3488 let Inst{20} = load;
3491 def L_PRE : ACI<(outs),
3492 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3493 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr!", IndexModePre> {
3494 let Inst{31-28} = op31_28;
3495 let Inst{24} = 1; // P = 1
3496 let Inst{21} = 1; // W = 1
3497 let Inst{22} = 1; // D = 1
3498 let Inst{20} = load;
3501 def L_POST : ACI<(outs),
3502 (ins nohash_imm:$cop, nohash_imm:$CRd, addrmode2:$addr),
3503 !strconcat(opc, "l"), "\tp$cop, cr$CRd, $addr", IndexModePost> {
3504 let Inst{31-28} = op31_28;
3505 let Inst{24} = 0; // P = 0
3506 let Inst{21} = 1; // W = 1
3507 let Inst{22} = 1; // D = 1
3508 let Inst{20} = load;
3511 def L_OPTION : ACI<(outs),
3512 (ins nohash_imm:$cop, nohash_imm:$CRd, GPR:$base, nohash_imm:$option),
3513 !strconcat(opc, "l"), "\tp$cop, cr$CRd, [$base], \\{$option\\}"> {
3514 let Inst{31-28} = op31_28;
3515 let Inst{24} = 0; // P = 0
3516 let Inst{23} = 1; // U = 1
3517 let Inst{21} = 0; // W = 0
3518 let Inst{22} = 1; // D = 1
3519 let Inst{20} = load;
3523 defm LDC : LdStCop<{?,?,?,?}, 1, "ldc">;
3524 defm LDC2 : LdStCop<0b1111, 1, "ldc2">;
3525 defm STC : LdStCop<{?,?,?,?}, 0, "stc">;
3526 defm STC2 : LdStCop<0b1111, 0, "stc2">;
3528 //===----------------------------------------------------------------------===//
3529 // Move between coprocessor and ARM core register -- for disassembly only
3532 class MovRCopro<string opc, bit direction, dag oops, dag iops>
3533 : ABI<0b1110, oops, iops, NoItinerary, opc,
3534 "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2",
3535 [/* For disassembly only; pattern left blank */]> {
3536 let Inst{20} = direction;
3546 let Inst{15-12} = Rt;
3547 let Inst{11-8} = cop;
3548 let Inst{23-21} = opc1;
3549 let Inst{7-5} = opc2;
3550 let Inst{3-0} = CRm;
3551 let Inst{19-16} = CRn;
3554 def MCR : MovRCopro<"mcr", 0 /* from ARM core register to coprocessor */,
3555 (outs), (ins p_imm:$cop, i32imm:$opc1,
3556 GPR:$Rt, c_imm:$CRn, c_imm:$CRm,
3558 def MRC : MovRCopro<"mrc", 1 /* from coprocessor to ARM core register */,
3559 (outs GPR:$Rt), (ins p_imm:$cop, i32imm:$opc1,
3560 c_imm:$CRn, c_imm:$CRm, i32imm:$opc2)>;
3562 class MovRCopro2<string opc, bit direction, dag oops, dag iops>
3563 : ABXI<0b1110, oops, iops, NoItinerary,
3564 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3565 [/* For disassembly only; pattern left blank */]> {
3566 let Inst{31-28} = 0b1111;
3567 let Inst{20} = direction;
3577 let Inst{15-12} = Rt;
3578 let Inst{11-8} = cop;
3579 let Inst{23-21} = opc1;
3580 let Inst{7-5} = opc2;
3581 let Inst{3-0} = CRm;
3582 let Inst{19-16} = CRn;
3585 def MCR2 : MovRCopro2<"mcr2", 0 /* from ARM core register to coprocessor */,
3586 (outs), (ins p_imm:$cop, i32imm:$opc1,
3587 GPR:$Rt, c_imm:$CRn, c_imm:$CRm,
3589 def MRC2 : MovRCopro2<"mrc2", 1 /* from coprocessor to ARM core register */,
3590 (outs GPR:$Rt), (ins p_imm:$cop, i32imm:$opc1,
3591 c_imm:$CRn, c_imm:$CRm,
3594 class MovRRCopro<string opc, bit direction>
3595 : ABI<0b1100, (outs), (ins p_imm:$cop, i32imm:$opc1,
3596 GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3597 NoItinerary, opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm",
3598 [/* For disassembly only; pattern left blank */]> {
3599 let Inst{23-21} = 0b010;
3600 let Inst{20} = direction;
3608 let Inst{15-12} = Rt;
3609 let Inst{19-16} = Rt2;
3610 let Inst{11-8} = cop;
3611 let Inst{7-4} = opc1;
3612 let Inst{3-0} = CRm;
3615 def MCRR : MovRRCopro<"mcrr", 0 /* from ARM core register to coprocessor */>;
3616 def MRRC : MovRRCopro<"mrrc", 1 /* from coprocessor to ARM core register */>;
3618 class MovRRCopro2<string opc, bit direction>
3619 : ABXI<0b1100, (outs), (ins p_imm:$cop, i32imm:$opc1,
3620 GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3621 NoItinerary, !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"),
3622 [/* For disassembly only; pattern left blank */]> {
3623 let Inst{31-28} = 0b1111;
3624 let Inst{23-21} = 0b010;
3625 let Inst{20} = direction;
3633 let Inst{15-12} = Rt;
3634 let Inst{19-16} = Rt2;
3635 let Inst{11-8} = cop;
3636 let Inst{7-4} = opc1;
3637 let Inst{3-0} = CRm;
3640 def MCRR2 : MovRRCopro2<"mcrr2", 0 /* from ARM core register to coprocessor */>;
3641 def MRRC2 : MovRRCopro2<"mrrc2", 1 /* from coprocessor to ARM core register */>;
3643 //===----------------------------------------------------------------------===//
3644 // Move between special register and ARM core register -- for disassembly only
3647 // Move to ARM core register from Special Register
3648 def MRS : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3649 [/* For disassembly only; pattern left blank */]> {
3651 let Inst{23-16} = 0b00001111;
3652 let Inst{15-12} = Rd;
3653 let Inst{7-4} = 0b0000;
3656 def MRSsys : ABI<0b0001, (outs GPR:$Rd), (ins), NoItinerary,"mrs","\t$Rd, spsr",
3657 [/* For disassembly only; pattern left blank */]> {
3659 let Inst{23-16} = 0b01001111;
3660 let Inst{15-12} = Rd;
3661 let Inst{7-4} = 0b0000;
3664 // Move from ARM core register to Special Register
3666 // No need to have both system and application versions, the encodings are the
3667 // same and the assembly parser has no way to distinguish between them. The mask
3668 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3669 // the mask with the fields to be accessed in the special register.
3670 def MSR : ABI<0b0001, (outs), (ins msr_mask:$mask, GPR:$Rn), NoItinerary,
3671 "msr", "\t$mask, $Rn",
3672 [/* For disassembly only; pattern left blank */]> {
3677 let Inst{22} = mask{4}; // R bit
3678 let Inst{21-20} = 0b10;
3679 let Inst{19-16} = mask{3-0};
3680 let Inst{15-12} = 0b1111;
3681 let Inst{11-4} = 0b00000000;
3685 def MSRi : ABI<0b0011, (outs), (ins msr_mask:$mask, so_imm:$a), NoItinerary,
3686 "msr", "\t$mask, $a",
3687 [/* For disassembly only; pattern left blank */]> {
3692 let Inst{22} = mask{4}; // R bit
3693 let Inst{21-20} = 0b10;
3694 let Inst{19-16} = mask{3-0};
3695 let Inst{15-12} = 0b1111;
3699 //===----------------------------------------------------------------------===//
3703 // __aeabi_read_tp preserves the registers r1-r3.
3704 // This is a pseudo inst so that we can get the encoding right,
3705 // complete with fixup for the aeabi_read_tp function.
3707 Defs = [R0, R12, LR, CPSR], Uses = [SP] in {
3708 def TPsoft : PseudoInst<(outs), (ins), IIC_Br,
3709 [(set R0, ARMthread_pointer)]>;
3712 //===----------------------------------------------------------------------===//
3713 // SJLJ Exception handling intrinsics
3714 // eh_sjlj_setjmp() is an instruction sequence to store the return
3715 // address and save #0 in R0 for the non-longjmp case.
3716 // Since by its nature we may be coming from some other function to get
3717 // here, and we're using the stack frame for the containing function to
3718 // save/restore registers, we can't keep anything live in regs across
3719 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
3720 // when we get here from a longjmp(). We force everthing out of registers
3721 // except for our own input by listing the relevant registers in Defs. By
3722 // doing so, we also cause the prologue/epilogue code to actively preserve
3723 // all of the callee-saved resgisters, which is exactly what we want.
3724 // A constant value is passed in $val, and we use the location as a scratch.
3726 // These are pseudo-instructions and are lowered to individual MC-insts, so
3727 // no encoding information is necessary.
3729 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
3730 D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
3731 D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
3732 D31 ], hasSideEffects = 1, isBarrier = 1 in {
3733 def Int_eh_sjlj_setjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
3735 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
3736 Requires<[IsARM, HasVFP2]>;
3740 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR ],
3741 hasSideEffects = 1, isBarrier = 1 in {
3742 def Int_eh_sjlj_setjmp_nofp : PseudoInst<(outs), (ins GPR:$src, GPR:$val),
3744 [(set R0, (ARMeh_sjlj_setjmp GPR:$src, GPR:$val))]>,
3745 Requires<[IsARM, NoVFP]>;
3748 // FIXME: Non-Darwin version(s)
3749 let isBarrier = 1, hasSideEffects = 1, isTerminator = 1,
3750 Defs = [ R7, LR, SP ] in {
3751 def Int_eh_sjlj_longjmp : PseudoInst<(outs), (ins GPR:$src, GPR:$scratch),
3753 [(ARMeh_sjlj_longjmp GPR:$src, GPR:$scratch)]>,
3754 Requires<[IsARM, IsDarwin]>;
3757 // eh.sjlj.dispatchsetup pseudo-instruction.
3758 // This pseudo is used for ARM, Thumb1 and Thumb2. Any differences are
3759 // handled when the pseudo is expanded (which happens before any passes
3760 // that need the instruction size).
3761 let isBarrier = 1, hasSideEffects = 1 in
3762 def Int_eh_sjlj_dispatchsetup :
3763 PseudoInst<(outs), (ins GPR:$src), NoItinerary,
3764 [(ARMeh_sjlj_dispatchsetup GPR:$src)]>,
3765 Requires<[IsDarwin]>;
3767 //===----------------------------------------------------------------------===//
3768 // Non-Instruction Patterns
3771 // Large immediate handling.
3773 // 32-bit immediate using two piece so_imms or movw + movt.
3774 // This is a single pseudo instruction, the benefit is that it can be remat'd
3775 // as a single unit instead of having to handle reg inputs.
3776 // FIXME: Remove this when we can do generalized remat.
3777 let isReMaterializable = 1, isMoveImm = 1 in
3778 def MOVi32imm : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3779 [(set GPR:$dst, (arm_i32imm:$src))]>,
3782 // Pseudo instruction that combines movw + movt + add pc (if PIC).
3783 // It also makes it possible to rematerialize the instructions.
3784 // FIXME: Remove this when we can do generalized remat and when machine licm
3785 // can properly the instructions.
3786 let isReMaterializable = 1 in {
3787 def MOV_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
3789 [(set GPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3790 Requires<[IsARM, UseMovt]>;
3792 def MOV_ga_dyn : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
3794 [(set GPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3795 Requires<[IsARM, UseMovt]>;
3797 let AddedComplexity = 10 in
3798 def MOV_ga_pcrel_ldr : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
3800 [(set GPR:$dst, (load (ARMWrapperPIC tglobaladdr:$addr)))]>,
3801 Requires<[IsARM, UseMovt]>;
3802 } // isReMaterializable
3804 // ConstantPool, GlobalAddress, and JumpTable
3805 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>,
3806 Requires<[IsARM, DontUseMovt]>;
3807 def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
3808 def : ARMPat<(ARMWrapper tglobaladdr :$dst), (MOVi32imm tglobaladdr :$dst)>,
3809 Requires<[IsARM, UseMovt]>;
3810 def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3811 (LEApcrelJT tjumptable:$dst, imm:$id)>;
3813 // TODO: add,sub,and, 3-instr forms?
3816 def : ARMPat<(ARMtcret tcGPR:$dst),
3817 (TCRETURNri tcGPR:$dst)>, Requires<[IsDarwin]>;
3819 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
3820 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
3822 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
3823 (TCRETURNdi texternalsym:$dst)>, Requires<[IsDarwin]>;
3825 def : ARMPat<(ARMtcret tcGPR:$dst),
3826 (TCRETURNriND tcGPR:$dst)>, Requires<[IsNotDarwin]>;
3828 def : ARMPat<(ARMtcret (i32 tglobaladdr:$dst)),
3829 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
3831 def : ARMPat<(ARMtcret (i32 texternalsym:$dst)),
3832 (TCRETURNdiND texternalsym:$dst)>, Requires<[IsNotDarwin]>;
3835 def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>,
3836 Requires<[IsARM, IsNotDarwin]>;
3837 def : ARMPat<(ARMcall texternalsym:$func), (BLr9 texternalsym:$func)>,
3838 Requires<[IsARM, IsDarwin]>;
3840 // zextload i1 -> zextload i8
3841 def : ARMPat<(zextloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
3842 def : ARMPat<(zextloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
3844 // extload -> zextload
3845 def : ARMPat<(extloadi1 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
3846 def : ARMPat<(extloadi1 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
3847 def : ARMPat<(extloadi8 addrmode_imm12:$addr), (LDRBi12 addrmode_imm12:$addr)>;
3848 def : ARMPat<(extloadi8 ldst_so_reg:$addr), (LDRBrs ldst_so_reg:$addr)>;
3850 def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
3852 def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
3853 def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
3856 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
3857 (sra (shl GPR:$b, (i32 16)), (i32 16))),
3858 (SMULBB GPR:$a, GPR:$b)>;
3859 def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
3860 (SMULBB GPR:$a, GPR:$b)>;
3861 def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
3862 (sra GPR:$b, (i32 16))),
3863 (SMULBT GPR:$a, GPR:$b)>;
3864 def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
3865 (SMULBT GPR:$a, GPR:$b)>;
3866 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
3867 (sra (shl GPR:$b, (i32 16)), (i32 16))),
3868 (SMULTB GPR:$a, GPR:$b)>;
3869 def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
3870 (SMULTB GPR:$a, GPR:$b)>;
3871 def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
3873 (SMULWB GPR:$a, GPR:$b)>;
3874 def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
3875 (SMULWB GPR:$a, GPR:$b)>;
3877 def : ARMV5TEPat<(add GPR:$acc,
3878 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
3879 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
3880 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
3881 def : ARMV5TEPat<(add GPR:$acc,
3882 (mul sext_16_node:$a, sext_16_node:$b)),
3883 (SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
3884 def : ARMV5TEPat<(add GPR:$acc,
3885 (mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
3886 (sra GPR:$b, (i32 16)))),
3887 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
3888 def : ARMV5TEPat<(add GPR:$acc,
3889 (mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
3890 (SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
3891 def : ARMV5TEPat<(add GPR:$acc,
3892 (mul (sra GPR:$a, (i32 16)),
3893 (sra (shl GPR:$b, (i32 16)), (i32 16)))),
3894 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
3895 def : ARMV5TEPat<(add GPR:$acc,
3896 (mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
3897 (SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
3898 def : ARMV5TEPat<(add GPR:$acc,
3899 (sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
3901 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
3902 def : ARMV5TEPat<(add GPR:$acc,
3903 (sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
3904 (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
3907 // Pre-v7 uses MCR for synchronization barriers.
3908 def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>,
3909 Requires<[IsARM, HasV6]>;
3912 //===----------------------------------------------------------------------===//
3916 include "ARMInstrThumb.td"
3918 //===----------------------------------------------------------------------===//
3922 include "ARMInstrThumb2.td"
3924 //===----------------------------------------------------------------------===//
3925 // Floating Point Support
3928 include "ARMInstrVFP.td"
3930 //===----------------------------------------------------------------------===//
3931 // Advanced SIMD (NEON) Support
3934 include "ARMInstrNEON.td"