1 //===-- ARMISelDAGToDAG.cpp - A dag to dag inst selector for ARM ----------===//
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 defines an instruction selector for the ARM target.
12 //===----------------------------------------------------------------------===//
14 #define DEBUG_TYPE "arm-isel"
16 #include "ARMBaseInstrInfo.h"
17 #include "ARMTargetMachine.h"
18 #include "MCTargetDesc/ARMAddressingModes.h"
19 #include "llvm/CallingConv.h"
20 #include "llvm/Constants.h"
21 #include "llvm/DerivedTypes.h"
22 #include "llvm/Function.h"
23 #include "llvm/Intrinsics.h"
24 #include "llvm/LLVMContext.h"
25 #include "llvm/CodeGen/MachineFrameInfo.h"
26 #include "llvm/CodeGen/MachineFunction.h"
27 #include "llvm/CodeGen/MachineInstrBuilder.h"
28 #include "llvm/CodeGen/SelectionDAG.h"
29 #include "llvm/CodeGen/SelectionDAGISel.h"
30 #include "llvm/Target/TargetLowering.h"
31 #include "llvm/Target/TargetOptions.h"
32 #include "llvm/Support/CommandLine.h"
33 #include "llvm/Support/Compiler.h"
34 #include "llvm/Support/Debug.h"
35 #include "llvm/Support/ErrorHandling.h"
36 #include "llvm/Support/raw_ostream.h"
41 DisableShifterOp("disable-shifter-op", cl::Hidden,
42 cl::desc("Disable isel of shifter-op"),
46 CheckVMLxHazard("check-vmlx-hazard", cl::Hidden,
47 cl::desc("Check fp vmla / vmls hazard at isel time"),
51 DisableARMIntABS("disable-arm-int-abs", cl::Hidden,
52 cl::desc("Enable / disable ARM integer abs transform"),
55 //===--------------------------------------------------------------------===//
56 /// ARMDAGToDAGISel - ARM specific code to select ARM machine
57 /// instructions for SelectionDAG operations.
62 AM2_BASE, // Simple AM2 (+-imm12)
63 AM2_SHOP // Shifter-op AM2
66 class ARMDAGToDAGISel : public SelectionDAGISel {
67 ARMBaseTargetMachine &TM;
68 const ARMBaseInstrInfo *TII;
70 /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
71 /// make the right decision when generating code for different targets.
72 const ARMSubtarget *Subtarget;
75 explicit ARMDAGToDAGISel(ARMBaseTargetMachine &tm,
76 CodeGenOpt::Level OptLevel)
77 : SelectionDAGISel(tm, OptLevel), TM(tm),
78 TII(static_cast<const ARMBaseInstrInfo*>(TM.getInstrInfo())),
79 Subtarget(&TM.getSubtarget<ARMSubtarget>()) {
82 virtual const char *getPassName() const {
83 return "ARM Instruction Selection";
86 /// getI32Imm - Return a target constant of type i32 with the specified
88 inline SDValue getI32Imm(unsigned Imm) {
89 return CurDAG->getTargetConstant(Imm, MVT::i32);
92 SDNode *Select(SDNode *N);
95 bool hasNoVMLxHazardUse(SDNode *N) const;
96 bool isShifterOpProfitable(const SDValue &Shift,
97 ARM_AM::ShiftOpc ShOpcVal, unsigned ShAmt);
98 bool SelectRegShifterOperand(SDValue N, SDValue &A,
99 SDValue &B, SDValue &C,
100 bool CheckProfitability = true);
101 bool SelectImmShifterOperand(SDValue N, SDValue &A,
102 SDValue &B, bool CheckProfitability = true);
103 bool SelectShiftRegShifterOperand(SDValue N, SDValue &A,
104 SDValue &B, SDValue &C) {
105 // Don't apply the profitability check
106 return SelectRegShifterOperand(N, A, B, C, false);
108 bool SelectShiftImmShifterOperand(SDValue N, SDValue &A,
110 // Don't apply the profitability check
111 return SelectImmShifterOperand(N, A, B, false);
114 bool SelectAddrModeImm12(SDValue N, SDValue &Base, SDValue &OffImm);
115 bool SelectLdStSOReg(SDValue N, SDValue &Base, SDValue &Offset, SDValue &Opc);
117 AddrMode2Type SelectAddrMode2Worker(SDValue N, SDValue &Base,
118 SDValue &Offset, SDValue &Opc);
119 bool SelectAddrMode2Base(SDValue N, SDValue &Base, SDValue &Offset,
121 return SelectAddrMode2Worker(N, Base, Offset, Opc) == AM2_BASE;
124 bool SelectAddrMode2ShOp(SDValue N, SDValue &Base, SDValue &Offset,
126 return SelectAddrMode2Worker(N, Base, Offset, Opc) == AM2_SHOP;
129 bool SelectAddrMode2(SDValue N, SDValue &Base, SDValue &Offset,
131 SelectAddrMode2Worker(N, Base, Offset, Opc);
132 // return SelectAddrMode2ShOp(N, Base, Offset, Opc);
133 // This always matches one way or another.
137 bool SelectAddrMode2OffsetReg(SDNode *Op, SDValue N,
138 SDValue &Offset, SDValue &Opc);
139 bool SelectAddrMode2OffsetImm(SDNode *Op, SDValue N,
140 SDValue &Offset, SDValue &Opc);
141 bool SelectAddrMode2OffsetImmPre(SDNode *Op, SDValue N,
142 SDValue &Offset, SDValue &Opc);
143 bool SelectAddrOffsetNone(SDValue N, SDValue &Base);
144 bool SelectAddrMode3(SDValue N, SDValue &Base,
145 SDValue &Offset, SDValue &Opc);
146 bool SelectAddrMode3Offset(SDNode *Op, SDValue N,
147 SDValue &Offset, SDValue &Opc);
148 bool SelectAddrMode5(SDValue N, SDValue &Base,
150 bool SelectAddrMode6(SDNode *Parent, SDValue N, SDValue &Addr,SDValue &Align);
151 bool SelectAddrMode6Offset(SDNode *Op, SDValue N, SDValue &Offset);
153 bool SelectAddrModePC(SDValue N, SDValue &Offset, SDValue &Label);
155 // Thumb Addressing Modes:
156 bool SelectThumbAddrModeRR(SDValue N, SDValue &Base, SDValue &Offset);
157 bool SelectThumbAddrModeRI(SDValue N, SDValue &Base, SDValue &Offset,
159 bool SelectThumbAddrModeRI5S1(SDValue N, SDValue &Base, SDValue &Offset);
160 bool SelectThumbAddrModeRI5S2(SDValue N, SDValue &Base, SDValue &Offset);
161 bool SelectThumbAddrModeRI5S4(SDValue N, SDValue &Base, SDValue &Offset);
162 bool SelectThumbAddrModeImm5S(SDValue N, unsigned Scale, SDValue &Base,
164 bool SelectThumbAddrModeImm5S1(SDValue N, SDValue &Base,
166 bool SelectThumbAddrModeImm5S2(SDValue N, SDValue &Base,
168 bool SelectThumbAddrModeImm5S4(SDValue N, SDValue &Base,
170 bool SelectThumbAddrModeSP(SDValue N, SDValue &Base, SDValue &OffImm);
172 // Thumb 2 Addressing Modes:
173 bool SelectT2ShifterOperandReg(SDValue N,
174 SDValue &BaseReg, SDValue &Opc);
175 bool SelectT2AddrModeImm12(SDValue N, SDValue &Base, SDValue &OffImm);
176 bool SelectT2AddrModeImm8(SDValue N, SDValue &Base,
178 bool SelectT2AddrModeImm8Offset(SDNode *Op, SDValue N,
180 bool SelectT2AddrModeSoReg(SDValue N, SDValue &Base,
181 SDValue &OffReg, SDValue &ShImm);
183 inline bool is_so_imm(unsigned Imm) const {
184 return ARM_AM::getSOImmVal(Imm) != -1;
187 inline bool is_so_imm_not(unsigned Imm) const {
188 return ARM_AM::getSOImmVal(~Imm) != -1;
191 inline bool is_t2_so_imm(unsigned Imm) const {
192 return ARM_AM::getT2SOImmVal(Imm) != -1;
195 inline bool is_t2_so_imm_not(unsigned Imm) const {
196 return ARM_AM::getT2SOImmVal(~Imm) != -1;
199 // Include the pieces autogenerated from the target description.
200 #include "ARMGenDAGISel.inc"
203 /// SelectARMIndexedLoad - Indexed (pre/post inc/dec) load matching code for
205 SDNode *SelectARMIndexedLoad(SDNode *N);
206 SDNode *SelectT2IndexedLoad(SDNode *N);
208 /// SelectVLD - Select NEON load intrinsics. NumVecs should be
209 /// 1, 2, 3 or 4. The opcode arrays specify the instructions used for
210 /// loads of D registers and even subregs and odd subregs of Q registers.
211 /// For NumVecs <= 2, QOpcodes1 is not used.
212 SDNode *SelectVLD(SDNode *N, bool isUpdating, unsigned NumVecs,
214 unsigned *QOpcodes0, unsigned *QOpcodes1);
216 /// SelectVST - Select NEON store intrinsics. NumVecs should
217 /// be 1, 2, 3 or 4. The opcode arrays specify the instructions used for
218 /// stores of D registers and even subregs and odd subregs of Q registers.
219 /// For NumVecs <= 2, QOpcodes1 is not used.
220 SDNode *SelectVST(SDNode *N, bool isUpdating, unsigned NumVecs,
222 unsigned *QOpcodes0, unsigned *QOpcodes1);
224 /// SelectVLDSTLane - Select NEON load/store lane intrinsics. NumVecs should
225 /// be 2, 3 or 4. The opcode arrays specify the instructions used for
226 /// load/store of D registers and Q registers.
227 SDNode *SelectVLDSTLane(SDNode *N, bool IsLoad,
228 bool isUpdating, unsigned NumVecs,
229 unsigned *DOpcodes, unsigned *QOpcodes);
231 /// SelectVLDDup - Select NEON load-duplicate intrinsics. NumVecs
232 /// should be 2, 3 or 4. The opcode array specifies the instructions used
233 /// for loading D registers. (Q registers are not supported.)
234 SDNode *SelectVLDDup(SDNode *N, bool isUpdating, unsigned NumVecs,
237 /// SelectVTBL - Select NEON VTBL and VTBX intrinsics. NumVecs should be 2,
238 /// 3 or 4. These are custom-selected so that a REG_SEQUENCE can be
239 /// generated to force the table registers to be consecutive.
240 SDNode *SelectVTBL(SDNode *N, bool IsExt, unsigned NumVecs, unsigned Opc);
242 /// SelectV6T2BitfieldExtractOp - Select SBFX/UBFX instructions for ARM.
243 SDNode *SelectV6T2BitfieldExtractOp(SDNode *N, bool isSigned);
245 /// SelectCMOVOp - Select CMOV instructions for ARM.
246 SDNode *SelectCMOVOp(SDNode *N);
247 SDNode *SelectT2CMOVShiftOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
248 ARMCC::CondCodes CCVal, SDValue CCR,
250 SDNode *SelectARMCMOVShiftOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
251 ARMCC::CondCodes CCVal, SDValue CCR,
253 SDNode *SelectT2CMOVImmOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
254 ARMCC::CondCodes CCVal, SDValue CCR,
256 SDNode *SelectARMCMOVImmOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
257 ARMCC::CondCodes CCVal, SDValue CCR,
260 // Select special operations if node forms integer ABS pattern
261 SDNode *SelectABSOp(SDNode *N);
263 SDNode *SelectConcatVector(SDNode *N);
265 SDNode *SelectAtomic64(SDNode *Node, unsigned Opc);
267 /// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
268 /// inline asm expressions.
269 virtual bool SelectInlineAsmMemoryOperand(const SDValue &Op,
271 std::vector<SDValue> &OutOps);
273 // Form pairs of consecutive S, D, or Q registers.
274 SDNode *PairSRegs(EVT VT, SDValue V0, SDValue V1);
275 SDNode *PairDRegs(EVT VT, SDValue V0, SDValue V1);
276 SDNode *PairQRegs(EVT VT, SDValue V0, SDValue V1);
278 // Form sequences of 4 consecutive S, D, or Q registers.
279 SDNode *QuadSRegs(EVT VT, SDValue V0, SDValue V1, SDValue V2, SDValue V3);
280 SDNode *QuadDRegs(EVT VT, SDValue V0, SDValue V1, SDValue V2, SDValue V3);
281 SDNode *QuadQRegs(EVT VT, SDValue V0, SDValue V1, SDValue V2, SDValue V3);
283 // Get the alignment operand for a NEON VLD or VST instruction.
284 SDValue GetVLDSTAlign(SDValue Align, unsigned NumVecs, bool is64BitVector);
288 /// isInt32Immediate - This method tests to see if the node is a 32-bit constant
289 /// operand. If so Imm will receive the 32-bit value.
290 static bool isInt32Immediate(SDNode *N, unsigned &Imm) {
291 if (N->getOpcode() == ISD::Constant && N->getValueType(0) == MVT::i32) {
292 Imm = cast<ConstantSDNode>(N)->getZExtValue();
298 // isInt32Immediate - This method tests to see if a constant operand.
299 // If so Imm will receive the 32 bit value.
300 static bool isInt32Immediate(SDValue N, unsigned &Imm) {
301 return isInt32Immediate(N.getNode(), Imm);
304 // isOpcWithIntImmediate - This method tests to see if the node is a specific
305 // opcode and that it has a immediate integer right operand.
306 // If so Imm will receive the 32 bit value.
307 static bool isOpcWithIntImmediate(SDNode *N, unsigned Opc, unsigned& Imm) {
308 return N->getOpcode() == Opc &&
309 isInt32Immediate(N->getOperand(1).getNode(), Imm);
312 /// \brief Check whether a particular node is a constant value representable as
313 /// (N * Scale) where (N in [\arg RangeMin, \arg RangeMax).
315 /// \param ScaledConstant [out] - On success, the pre-scaled constant value.
316 static bool isScaledConstantInRange(SDValue Node, int Scale,
317 int RangeMin, int RangeMax,
318 int &ScaledConstant) {
319 assert(Scale > 0 && "Invalid scale!");
321 // Check that this is a constant.
322 const ConstantSDNode *C = dyn_cast<ConstantSDNode>(Node);
326 ScaledConstant = (int) C->getZExtValue();
327 if ((ScaledConstant % Scale) != 0)
330 ScaledConstant /= Scale;
331 return ScaledConstant >= RangeMin && ScaledConstant < RangeMax;
334 /// hasNoVMLxHazardUse - Return true if it's desirable to select a FP MLA / MLS
335 /// node. VFP / NEON fp VMLA / VMLS instructions have special RAW hazards (at
336 /// least on current ARM implementations) which should be avoidded.
337 bool ARMDAGToDAGISel::hasNoVMLxHazardUse(SDNode *N) const {
338 if (OptLevel == CodeGenOpt::None)
341 if (!CheckVMLxHazard)
344 if (!Subtarget->isCortexA8() && !Subtarget->isCortexA9())
350 SDNode *Use = *N->use_begin();
351 if (Use->getOpcode() == ISD::CopyToReg)
353 if (Use->isMachineOpcode()) {
354 const MCInstrDesc &MCID = TII->get(Use->getMachineOpcode());
357 unsigned Opcode = MCID.getOpcode();
358 if (Opcode == ARM::VMOVRS || Opcode == ARM::VMOVRRD)
360 // vmlx feeding into another vmlx. We actually want to unfold
361 // the use later in the MLxExpansion pass. e.g.
363 // vmla (stall 8 cycles)
368 // This adds up to about 18 - 19 cycles.
371 // vmul (stall 4 cycles)
372 // vadd adds up to about 14 cycles.
373 return TII->isFpMLxInstruction(Opcode);
379 bool ARMDAGToDAGISel::isShifterOpProfitable(const SDValue &Shift,
380 ARM_AM::ShiftOpc ShOpcVal,
382 if (!Subtarget->isCortexA9())
384 if (Shift.hasOneUse())
387 return ShOpcVal == ARM_AM::lsl && ShAmt == 2;
390 bool ARMDAGToDAGISel::SelectImmShifterOperand(SDValue N,
393 bool CheckProfitability) {
394 if (DisableShifterOp)
397 ARM_AM::ShiftOpc ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOpcode());
399 // Don't match base register only case. That is matched to a separate
400 // lower complexity pattern with explicit register operand.
401 if (ShOpcVal == ARM_AM::no_shift) return false;
403 BaseReg = N.getOperand(0);
404 unsigned ShImmVal = 0;
405 ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1));
406 if (!RHS) return false;
407 ShImmVal = RHS->getZExtValue() & 31;
408 Opc = CurDAG->getTargetConstant(ARM_AM::getSORegOpc(ShOpcVal, ShImmVal),
413 bool ARMDAGToDAGISel::SelectRegShifterOperand(SDValue N,
417 bool CheckProfitability) {
418 if (DisableShifterOp)
421 ARM_AM::ShiftOpc ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOpcode());
423 // Don't match base register only case. That is matched to a separate
424 // lower complexity pattern with explicit register operand.
425 if (ShOpcVal == ARM_AM::no_shift) return false;
427 BaseReg = N.getOperand(0);
428 unsigned ShImmVal = 0;
429 ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1));
430 if (RHS) return false;
432 ShReg = N.getOperand(1);
433 if (CheckProfitability && !isShifterOpProfitable(N, ShOpcVal, ShImmVal))
435 Opc = CurDAG->getTargetConstant(ARM_AM::getSORegOpc(ShOpcVal, ShImmVal),
441 bool ARMDAGToDAGISel::SelectAddrModeImm12(SDValue N,
444 // Match simple R + imm12 operands.
447 if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB &&
448 !CurDAG->isBaseWithConstantOffset(N)) {
449 if (N.getOpcode() == ISD::FrameIndex) {
450 // Match frame index.
451 int FI = cast<FrameIndexSDNode>(N)->getIndex();
452 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
453 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
457 if (N.getOpcode() == ARMISD::Wrapper &&
458 !(Subtarget->useMovt() &&
459 N.getOperand(0).getOpcode() == ISD::TargetGlobalAddress)) {
460 Base = N.getOperand(0);
463 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
467 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
468 int RHSC = (int)RHS->getZExtValue();
469 if (N.getOpcode() == ISD::SUB)
472 if (RHSC >= 0 && RHSC < 0x1000) { // 12 bits (unsigned)
473 Base = N.getOperand(0);
474 if (Base.getOpcode() == ISD::FrameIndex) {
475 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
476 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
478 OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
485 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
491 bool ARMDAGToDAGISel::SelectLdStSOReg(SDValue N, SDValue &Base, SDValue &Offset,
493 if (N.getOpcode() == ISD::MUL &&
494 (!Subtarget->isCortexA9() || N.hasOneUse())) {
495 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
496 // X * [3,5,9] -> X + X * [2,4,8] etc.
497 int RHSC = (int)RHS->getZExtValue();
500 ARM_AM::AddrOpc AddSub = ARM_AM::add;
502 AddSub = ARM_AM::sub;
505 if (isPowerOf2_32(RHSC)) {
506 unsigned ShAmt = Log2_32(RHSC);
507 Base = Offset = N.getOperand(0);
508 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, ShAmt,
517 if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB &&
518 // ISD::OR that is equivalent to an ISD::ADD.
519 !CurDAG->isBaseWithConstantOffset(N))
522 // Leave simple R +/- imm12 operands for LDRi12
523 if (N.getOpcode() == ISD::ADD || N.getOpcode() == ISD::OR) {
525 if (isScaledConstantInRange(N.getOperand(1), /*Scale=*/1,
526 -0x1000+1, 0x1000, RHSC)) // 12 bits.
530 // Otherwise this is R +/- [possibly shifted] R.
531 ARM_AM::AddrOpc AddSub = N.getOpcode() == ISD::SUB ? ARM_AM::sub:ARM_AM::add;
532 ARM_AM::ShiftOpc ShOpcVal =
533 ARM_AM::getShiftOpcForNode(N.getOperand(1).getOpcode());
536 Base = N.getOperand(0);
537 Offset = N.getOperand(1);
539 if (ShOpcVal != ARM_AM::no_shift) {
540 // Check to see if the RHS of the shift is a constant, if not, we can't fold
542 if (ConstantSDNode *Sh =
543 dyn_cast<ConstantSDNode>(N.getOperand(1).getOperand(1))) {
544 ShAmt = Sh->getZExtValue();
545 if (isShifterOpProfitable(Offset, ShOpcVal, ShAmt))
546 Offset = N.getOperand(1).getOperand(0);
549 ShOpcVal = ARM_AM::no_shift;
552 ShOpcVal = ARM_AM::no_shift;
556 // Try matching (R shl C) + (R).
557 if (N.getOpcode() != ISD::SUB && ShOpcVal == ARM_AM::no_shift &&
558 !(Subtarget->isCortexA9() || N.getOperand(0).hasOneUse())) {
559 ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOperand(0).getOpcode());
560 if (ShOpcVal != ARM_AM::no_shift) {
561 // Check to see if the RHS of the shift is a constant, if not, we can't
563 if (ConstantSDNode *Sh =
564 dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) {
565 ShAmt = Sh->getZExtValue();
566 if (isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt)) {
567 Offset = N.getOperand(0).getOperand(0);
568 Base = N.getOperand(1);
571 ShOpcVal = ARM_AM::no_shift;
574 ShOpcVal = ARM_AM::no_shift;
579 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, ShAmt, ShOpcVal),
589 AddrMode2Type ARMDAGToDAGISel::SelectAddrMode2Worker(SDValue N,
593 if (N.getOpcode() == ISD::MUL &&
594 (!Subtarget->isCortexA9() || N.hasOneUse())) {
595 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
596 // X * [3,5,9] -> X + X * [2,4,8] etc.
597 int RHSC = (int)RHS->getZExtValue();
600 ARM_AM::AddrOpc AddSub = ARM_AM::add;
602 AddSub = ARM_AM::sub;
605 if (isPowerOf2_32(RHSC)) {
606 unsigned ShAmt = Log2_32(RHSC);
607 Base = Offset = N.getOperand(0);
608 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, ShAmt,
617 if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB &&
618 // ISD::OR that is equivalent to an ADD.
619 !CurDAG->isBaseWithConstantOffset(N)) {
621 if (N.getOpcode() == ISD::FrameIndex) {
622 int FI = cast<FrameIndexSDNode>(N)->getIndex();
623 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
624 } else if (N.getOpcode() == ARMISD::Wrapper &&
625 !(Subtarget->useMovt() &&
626 N.getOperand(0).getOpcode() == ISD::TargetGlobalAddress)) {
627 Base = N.getOperand(0);
629 Offset = CurDAG->getRegister(0, MVT::i32);
630 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(ARM_AM::add, 0,
636 // Match simple R +/- imm12 operands.
637 if (N.getOpcode() != ISD::SUB) {
639 if (isScaledConstantInRange(N.getOperand(1), /*Scale=*/1,
640 -0x1000+1, 0x1000, RHSC)) { // 12 bits.
641 Base = N.getOperand(0);
642 if (Base.getOpcode() == ISD::FrameIndex) {
643 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
644 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
646 Offset = CurDAG->getRegister(0, MVT::i32);
648 ARM_AM::AddrOpc AddSub = ARM_AM::add;
650 AddSub = ARM_AM::sub;
653 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, RHSC,
660 if (Subtarget->isCortexA9() && !N.hasOneUse()) {
661 // Compute R +/- (R << N) and reuse it.
663 Offset = CurDAG->getRegister(0, MVT::i32);
664 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(ARM_AM::add, 0,
670 // Otherwise this is R +/- [possibly shifted] R.
671 ARM_AM::AddrOpc AddSub = N.getOpcode() != ISD::SUB ? ARM_AM::add:ARM_AM::sub;
672 ARM_AM::ShiftOpc ShOpcVal =
673 ARM_AM::getShiftOpcForNode(N.getOperand(1).getOpcode());
676 Base = N.getOperand(0);
677 Offset = N.getOperand(1);
679 if (ShOpcVal != ARM_AM::no_shift) {
680 // Check to see if the RHS of the shift is a constant, if not, we can't fold
682 if (ConstantSDNode *Sh =
683 dyn_cast<ConstantSDNode>(N.getOperand(1).getOperand(1))) {
684 ShAmt = Sh->getZExtValue();
685 if (isShifterOpProfitable(Offset, ShOpcVal, ShAmt))
686 Offset = N.getOperand(1).getOperand(0);
689 ShOpcVal = ARM_AM::no_shift;
692 ShOpcVal = ARM_AM::no_shift;
696 // Try matching (R shl C) + (R).
697 if (N.getOpcode() != ISD::SUB && ShOpcVal == ARM_AM::no_shift &&
698 !(Subtarget->isCortexA9() || N.getOperand(0).hasOneUse())) {
699 ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOperand(0).getOpcode());
700 if (ShOpcVal != ARM_AM::no_shift) {
701 // Check to see if the RHS of the shift is a constant, if not, we can't
703 if (ConstantSDNode *Sh =
704 dyn_cast<ConstantSDNode>(N.getOperand(0).getOperand(1))) {
705 ShAmt = Sh->getZExtValue();
706 if (isShifterOpProfitable(N.getOperand(0), ShOpcVal, ShAmt)) {
707 Offset = N.getOperand(0).getOperand(0);
708 Base = N.getOperand(1);
711 ShOpcVal = ARM_AM::no_shift;
714 ShOpcVal = ARM_AM::no_shift;
719 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, ShAmt, ShOpcVal),
724 bool ARMDAGToDAGISel::SelectAddrMode2OffsetReg(SDNode *Op, SDValue N,
725 SDValue &Offset, SDValue &Opc) {
726 unsigned Opcode = Op->getOpcode();
727 ISD::MemIndexedMode AM = (Opcode == ISD::LOAD)
728 ? cast<LoadSDNode>(Op)->getAddressingMode()
729 : cast<StoreSDNode>(Op)->getAddressingMode();
730 ARM_AM::AddrOpc AddSub = (AM == ISD::PRE_INC || AM == ISD::POST_INC)
731 ? ARM_AM::add : ARM_AM::sub;
733 if (isScaledConstantInRange(N, /*Scale=*/1, 0, 0x1000, Val))
737 ARM_AM::ShiftOpc ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOpcode());
739 if (ShOpcVal != ARM_AM::no_shift) {
740 // Check to see if the RHS of the shift is a constant, if not, we can't fold
742 if (ConstantSDNode *Sh = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
743 ShAmt = Sh->getZExtValue();
744 if (isShifterOpProfitable(N, ShOpcVal, ShAmt))
745 Offset = N.getOperand(0);
748 ShOpcVal = ARM_AM::no_shift;
751 ShOpcVal = ARM_AM::no_shift;
755 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, ShAmt, ShOpcVal),
760 bool ARMDAGToDAGISel::SelectAddrMode2OffsetImmPre(SDNode *Op, SDValue N,
761 SDValue &Offset, SDValue &Opc) {
762 unsigned Opcode = Op->getOpcode();
763 ISD::MemIndexedMode AM = (Opcode == ISD::LOAD)
764 ? cast<LoadSDNode>(Op)->getAddressingMode()
765 : cast<StoreSDNode>(Op)->getAddressingMode();
766 ARM_AM::AddrOpc AddSub = (AM == ISD::PRE_INC || AM == ISD::POST_INC)
767 ? ARM_AM::add : ARM_AM::sub;
769 if (isScaledConstantInRange(N, /*Scale=*/1, 0, 0x1000, Val)) { // 12 bits.
770 if (AddSub == ARM_AM::sub) Val *= -1;
771 Offset = CurDAG->getRegister(0, MVT::i32);
772 Opc = CurDAG->getTargetConstant(Val, MVT::i32);
780 bool ARMDAGToDAGISel::SelectAddrMode2OffsetImm(SDNode *Op, SDValue N,
781 SDValue &Offset, SDValue &Opc) {
782 unsigned Opcode = Op->getOpcode();
783 ISD::MemIndexedMode AM = (Opcode == ISD::LOAD)
784 ? cast<LoadSDNode>(Op)->getAddressingMode()
785 : cast<StoreSDNode>(Op)->getAddressingMode();
786 ARM_AM::AddrOpc AddSub = (AM == ISD::PRE_INC || AM == ISD::POST_INC)
787 ? ARM_AM::add : ARM_AM::sub;
789 if (isScaledConstantInRange(N, /*Scale=*/1, 0, 0x1000, Val)) { // 12 bits.
790 Offset = CurDAG->getRegister(0, MVT::i32);
791 Opc = CurDAG->getTargetConstant(ARM_AM::getAM2Opc(AddSub, Val,
800 bool ARMDAGToDAGISel::SelectAddrOffsetNone(SDValue N, SDValue &Base) {
805 bool ARMDAGToDAGISel::SelectAddrMode3(SDValue N,
806 SDValue &Base, SDValue &Offset,
808 if (N.getOpcode() == ISD::SUB) {
809 // X - C is canonicalize to X + -C, no need to handle it here.
810 Base = N.getOperand(0);
811 Offset = N.getOperand(1);
812 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(ARM_AM::sub, 0),MVT::i32);
816 if (!CurDAG->isBaseWithConstantOffset(N)) {
818 if (N.getOpcode() == ISD::FrameIndex) {
819 int FI = cast<FrameIndexSDNode>(N)->getIndex();
820 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
822 Offset = CurDAG->getRegister(0, MVT::i32);
823 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(ARM_AM::add, 0),MVT::i32);
827 // If the RHS is +/- imm8, fold into addr mode.
829 if (isScaledConstantInRange(N.getOperand(1), /*Scale=*/1,
830 -256 + 1, 256, RHSC)) { // 8 bits.
831 Base = N.getOperand(0);
832 if (Base.getOpcode() == ISD::FrameIndex) {
833 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
834 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
836 Offset = CurDAG->getRegister(0, MVT::i32);
838 ARM_AM::AddrOpc AddSub = ARM_AM::add;
840 AddSub = ARM_AM::sub;
843 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(AddSub, RHSC),MVT::i32);
847 Base = N.getOperand(0);
848 Offset = N.getOperand(1);
849 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(ARM_AM::add, 0), MVT::i32);
853 bool ARMDAGToDAGISel::SelectAddrMode3Offset(SDNode *Op, SDValue N,
854 SDValue &Offset, SDValue &Opc) {
855 unsigned Opcode = Op->getOpcode();
856 ISD::MemIndexedMode AM = (Opcode == ISD::LOAD)
857 ? cast<LoadSDNode>(Op)->getAddressingMode()
858 : cast<StoreSDNode>(Op)->getAddressingMode();
859 ARM_AM::AddrOpc AddSub = (AM == ISD::PRE_INC || AM == ISD::POST_INC)
860 ? ARM_AM::add : ARM_AM::sub;
862 if (isScaledConstantInRange(N, /*Scale=*/1, 0, 256, Val)) { // 12 bits.
863 Offset = CurDAG->getRegister(0, MVT::i32);
864 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(AddSub, Val), MVT::i32);
869 Opc = CurDAG->getTargetConstant(ARM_AM::getAM3Opc(AddSub, 0), MVT::i32);
873 bool ARMDAGToDAGISel::SelectAddrMode5(SDValue N,
874 SDValue &Base, SDValue &Offset) {
875 if (!CurDAG->isBaseWithConstantOffset(N)) {
877 if (N.getOpcode() == ISD::FrameIndex) {
878 int FI = cast<FrameIndexSDNode>(N)->getIndex();
879 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
880 } else if (N.getOpcode() == ARMISD::Wrapper &&
881 !(Subtarget->useMovt() &&
882 N.getOperand(0).getOpcode() == ISD::TargetGlobalAddress)) {
883 Base = N.getOperand(0);
885 Offset = CurDAG->getTargetConstant(ARM_AM::getAM5Opc(ARM_AM::add, 0),
890 // If the RHS is +/- imm8, fold into addr mode.
892 if (isScaledConstantInRange(N.getOperand(1), /*Scale=*/4,
893 -256 + 1, 256, RHSC)) {
894 Base = N.getOperand(0);
895 if (Base.getOpcode() == ISD::FrameIndex) {
896 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
897 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
900 ARM_AM::AddrOpc AddSub = ARM_AM::add;
902 AddSub = ARM_AM::sub;
905 Offset = CurDAG->getTargetConstant(ARM_AM::getAM5Opc(AddSub, RHSC),
911 Offset = CurDAG->getTargetConstant(ARM_AM::getAM5Opc(ARM_AM::add, 0),
916 bool ARMDAGToDAGISel::SelectAddrMode6(SDNode *Parent, SDValue N, SDValue &Addr,
920 unsigned Alignment = 0;
921 if (LSBaseSDNode *LSN = dyn_cast<LSBaseSDNode>(Parent)) {
922 // This case occurs only for VLD1-lane/dup and VST1-lane instructions.
923 // The maximum alignment is equal to the memory size being referenced.
924 unsigned LSNAlign = LSN->getAlignment();
925 unsigned MemSize = LSN->getMemoryVT().getSizeInBits() / 8;
926 if (LSNAlign >= MemSize && MemSize > 1)
929 // All other uses of addrmode6 are for intrinsics. For now just record
930 // the raw alignment value; it will be refined later based on the legal
931 // alignment operands for the intrinsic.
932 Alignment = cast<MemIntrinsicSDNode>(Parent)->getAlignment();
935 Align = CurDAG->getTargetConstant(Alignment, MVT::i32);
939 bool ARMDAGToDAGISel::SelectAddrMode6Offset(SDNode *Op, SDValue N,
941 LSBaseSDNode *LdSt = cast<LSBaseSDNode>(Op);
942 ISD::MemIndexedMode AM = LdSt->getAddressingMode();
943 if (AM != ISD::POST_INC)
946 if (ConstantSDNode *NC = dyn_cast<ConstantSDNode>(N)) {
947 if (NC->getZExtValue() * 8 == LdSt->getMemoryVT().getSizeInBits())
948 Offset = CurDAG->getRegister(0, MVT::i32);
953 bool ARMDAGToDAGISel::SelectAddrModePC(SDValue N,
954 SDValue &Offset, SDValue &Label) {
955 if (N.getOpcode() == ARMISD::PIC_ADD && N.hasOneUse()) {
956 Offset = N.getOperand(0);
957 SDValue N1 = N.getOperand(1);
958 Label = CurDAG->getTargetConstant(cast<ConstantSDNode>(N1)->getZExtValue(),
967 //===----------------------------------------------------------------------===//
968 // Thumb Addressing Modes
969 //===----------------------------------------------------------------------===//
971 bool ARMDAGToDAGISel::SelectThumbAddrModeRR(SDValue N,
972 SDValue &Base, SDValue &Offset){
973 if (N.getOpcode() != ISD::ADD && !CurDAG->isBaseWithConstantOffset(N)) {
974 ConstantSDNode *NC = dyn_cast<ConstantSDNode>(N);
975 if (!NC || !NC->isNullValue())
982 Base = N.getOperand(0);
983 Offset = N.getOperand(1);
988 ARMDAGToDAGISel::SelectThumbAddrModeRI(SDValue N, SDValue &Base,
989 SDValue &Offset, unsigned Scale) {
991 SDValue TmpBase, TmpOffImm;
992 if (SelectThumbAddrModeSP(N, TmpBase, TmpOffImm))
993 return false; // We want to select tLDRspi / tSTRspi instead.
995 if (N.getOpcode() == ARMISD::Wrapper &&
996 N.getOperand(0).getOpcode() == ISD::TargetConstantPool)
997 return false; // We want to select tLDRpci instead.
1000 if (!CurDAG->isBaseWithConstantOffset(N))
1003 // Thumb does not have [sp, r] address mode.
1004 RegisterSDNode *LHSR = dyn_cast<RegisterSDNode>(N.getOperand(0));
1005 RegisterSDNode *RHSR = dyn_cast<RegisterSDNode>(N.getOperand(1));
1006 if ((LHSR && LHSR->getReg() == ARM::SP) ||
1007 (RHSR && RHSR->getReg() == ARM::SP))
1010 // FIXME: Why do we explicitly check for a match here and then return false?
1011 // Presumably to allow something else to match, but shouldn't this be
1014 if (isScaledConstantInRange(N.getOperand(1), Scale, 0, 32, RHSC))
1017 Base = N.getOperand(0);
1018 Offset = N.getOperand(1);
1023 ARMDAGToDAGISel::SelectThumbAddrModeRI5S1(SDValue N,
1026 return SelectThumbAddrModeRI(N, Base, Offset, 1);
1030 ARMDAGToDAGISel::SelectThumbAddrModeRI5S2(SDValue N,
1033 return SelectThumbAddrModeRI(N, Base, Offset, 2);
1037 ARMDAGToDAGISel::SelectThumbAddrModeRI5S4(SDValue N,
1040 return SelectThumbAddrModeRI(N, Base, Offset, 4);
1044 ARMDAGToDAGISel::SelectThumbAddrModeImm5S(SDValue N, unsigned Scale,
1045 SDValue &Base, SDValue &OffImm) {
1047 SDValue TmpBase, TmpOffImm;
1048 if (SelectThumbAddrModeSP(N, TmpBase, TmpOffImm))
1049 return false; // We want to select tLDRspi / tSTRspi instead.
1051 if (N.getOpcode() == ARMISD::Wrapper &&
1052 N.getOperand(0).getOpcode() == ISD::TargetConstantPool)
1053 return false; // We want to select tLDRpci instead.
1056 if (!CurDAG->isBaseWithConstantOffset(N)) {
1057 if (N.getOpcode() == ARMISD::Wrapper &&
1058 !(Subtarget->useMovt() &&
1059 N.getOperand(0).getOpcode() == ISD::TargetGlobalAddress)) {
1060 Base = N.getOperand(0);
1065 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1069 RegisterSDNode *LHSR = dyn_cast<RegisterSDNode>(N.getOperand(0));
1070 RegisterSDNode *RHSR = dyn_cast<RegisterSDNode>(N.getOperand(1));
1071 if ((LHSR && LHSR->getReg() == ARM::SP) ||
1072 (RHSR && RHSR->getReg() == ARM::SP)) {
1073 ConstantSDNode *LHS = dyn_cast<ConstantSDNode>(N.getOperand(0));
1074 ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1));
1075 unsigned LHSC = LHS ? LHS->getZExtValue() : 0;
1076 unsigned RHSC = RHS ? RHS->getZExtValue() : 0;
1078 // Thumb does not have [sp, #imm5] address mode for non-zero imm5.
1079 if (LHSC != 0 || RHSC != 0) return false;
1082 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1086 // If the RHS is + imm5 * scale, fold into addr mode.
1088 if (isScaledConstantInRange(N.getOperand(1), Scale, 0, 32, RHSC)) {
1089 Base = N.getOperand(0);
1090 OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
1094 Base = N.getOperand(0);
1095 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1100 ARMDAGToDAGISel::SelectThumbAddrModeImm5S4(SDValue N, SDValue &Base,
1102 return SelectThumbAddrModeImm5S(N, 4, Base, OffImm);
1106 ARMDAGToDAGISel::SelectThumbAddrModeImm5S2(SDValue N, SDValue &Base,
1108 return SelectThumbAddrModeImm5S(N, 2, Base, OffImm);
1112 ARMDAGToDAGISel::SelectThumbAddrModeImm5S1(SDValue N, SDValue &Base,
1114 return SelectThumbAddrModeImm5S(N, 1, Base, OffImm);
1117 bool ARMDAGToDAGISel::SelectThumbAddrModeSP(SDValue N,
1118 SDValue &Base, SDValue &OffImm) {
1119 if (N.getOpcode() == ISD::FrameIndex) {
1120 int FI = cast<FrameIndexSDNode>(N)->getIndex();
1121 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
1122 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1126 if (!CurDAG->isBaseWithConstantOffset(N))
1129 RegisterSDNode *LHSR = dyn_cast<RegisterSDNode>(N.getOperand(0));
1130 if (N.getOperand(0).getOpcode() == ISD::FrameIndex ||
1131 (LHSR && LHSR->getReg() == ARM::SP)) {
1132 // If the RHS is + imm8 * scale, fold into addr mode.
1134 if (isScaledConstantInRange(N.getOperand(1), /*Scale=*/4, 0, 256, RHSC)) {
1135 Base = N.getOperand(0);
1136 if (Base.getOpcode() == ISD::FrameIndex) {
1137 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
1138 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
1140 OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
1149 //===----------------------------------------------------------------------===//
1150 // Thumb 2 Addressing Modes
1151 //===----------------------------------------------------------------------===//
1154 bool ARMDAGToDAGISel::SelectT2ShifterOperandReg(SDValue N, SDValue &BaseReg,
1156 if (DisableShifterOp)
1159 ARM_AM::ShiftOpc ShOpcVal = ARM_AM::getShiftOpcForNode(N.getOpcode());
1161 // Don't match base register only case. That is matched to a separate
1162 // lower complexity pattern with explicit register operand.
1163 if (ShOpcVal == ARM_AM::no_shift) return false;
1165 BaseReg = N.getOperand(0);
1166 unsigned ShImmVal = 0;
1167 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
1168 ShImmVal = RHS->getZExtValue() & 31;
1169 Opc = getI32Imm(ARM_AM::getSORegOpc(ShOpcVal, ShImmVal));
1176 bool ARMDAGToDAGISel::SelectT2AddrModeImm12(SDValue N,
1177 SDValue &Base, SDValue &OffImm) {
1178 // Match simple R + imm12 operands.
1181 if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB &&
1182 !CurDAG->isBaseWithConstantOffset(N)) {
1183 if (N.getOpcode() == ISD::FrameIndex) {
1184 // Match frame index.
1185 int FI = cast<FrameIndexSDNode>(N)->getIndex();
1186 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
1187 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1191 if (N.getOpcode() == ARMISD::Wrapper &&
1192 !(Subtarget->useMovt() &&
1193 N.getOperand(0).getOpcode() == ISD::TargetGlobalAddress)) {
1194 Base = N.getOperand(0);
1195 if (Base.getOpcode() == ISD::TargetConstantPool)
1196 return false; // We want to select t2LDRpci instead.
1199 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1203 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
1204 if (SelectT2AddrModeImm8(N, Base, OffImm))
1205 // Let t2LDRi8 handle (R - imm8).
1208 int RHSC = (int)RHS->getZExtValue();
1209 if (N.getOpcode() == ISD::SUB)
1212 if (RHSC >= 0 && RHSC < 0x1000) { // 12 bits (unsigned)
1213 Base = N.getOperand(0);
1214 if (Base.getOpcode() == ISD::FrameIndex) {
1215 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
1216 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
1218 OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
1225 OffImm = CurDAG->getTargetConstant(0, MVT::i32);
1229 bool ARMDAGToDAGISel::SelectT2AddrModeImm8(SDValue N,
1230 SDValue &Base, SDValue &OffImm) {
1231 // Match simple R - imm8 operands.
1232 if (N.getOpcode() != ISD::ADD && N.getOpcode() != ISD::SUB &&
1233 !CurDAG->isBaseWithConstantOffset(N))
1236 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
1237 int RHSC = (int)RHS->getSExtValue();
1238 if (N.getOpcode() == ISD::SUB)
1241 if ((RHSC >= -255) && (RHSC < 0)) { // 8 bits (always negative)
1242 Base = N.getOperand(0);
1243 if (Base.getOpcode() == ISD::FrameIndex) {
1244 int FI = cast<FrameIndexSDNode>(Base)->getIndex();
1245 Base = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
1247 OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
1255 bool ARMDAGToDAGISel::SelectT2AddrModeImm8Offset(SDNode *Op, SDValue N,
1257 unsigned Opcode = Op->getOpcode();
1258 ISD::MemIndexedMode AM = (Opcode == ISD::LOAD)
1259 ? cast<LoadSDNode>(Op)->getAddressingMode()
1260 : cast<StoreSDNode>(Op)->getAddressingMode();
1262 if (isScaledConstantInRange(N, /*Scale=*/1, 0, 0x100, RHSC)) { // 8 bits.
1263 OffImm = ((AM == ISD::PRE_INC) || (AM == ISD::POST_INC))
1264 ? CurDAG->getTargetConstant(RHSC, MVT::i32)
1265 : CurDAG->getTargetConstant(-RHSC, MVT::i32);
1272 bool ARMDAGToDAGISel::SelectT2AddrModeSoReg(SDValue N,
1274 SDValue &OffReg, SDValue &ShImm) {
1275 // (R - imm8) should be handled by t2LDRi8. The rest are handled by t2LDRi12.
1276 if (N.getOpcode() != ISD::ADD && !CurDAG->isBaseWithConstantOffset(N))
1279 // Leave (R + imm12) for t2LDRi12, (R - imm8) for t2LDRi8.
1280 if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
1281 int RHSC = (int)RHS->getZExtValue();
1282 if (RHSC >= 0 && RHSC < 0x1000) // 12 bits (unsigned)
1284 else if (RHSC < 0 && RHSC >= -255) // 8 bits
1288 // Look for (R + R) or (R + (R << [1,2,3])).
1290 Base = N.getOperand(0);
1291 OffReg = N.getOperand(1);
1293 // Swap if it is ((R << c) + R).
1294 ARM_AM::ShiftOpc ShOpcVal = ARM_AM::getShiftOpcForNode(OffReg.getOpcode());
1295 if (ShOpcVal != ARM_AM::lsl) {
1296 ShOpcVal = ARM_AM::getShiftOpcForNode(Base.getOpcode());
1297 if (ShOpcVal == ARM_AM::lsl)
1298 std::swap(Base, OffReg);
1301 if (ShOpcVal == ARM_AM::lsl) {
1302 // Check to see if the RHS of the shift is a constant, if not, we can't fold
1304 if (ConstantSDNode *Sh = dyn_cast<ConstantSDNode>(OffReg.getOperand(1))) {
1305 ShAmt = Sh->getZExtValue();
1306 if (ShAmt < 4 && isShifterOpProfitable(OffReg, ShOpcVal, ShAmt))
1307 OffReg = OffReg.getOperand(0);
1310 ShOpcVal = ARM_AM::no_shift;
1313 ShOpcVal = ARM_AM::no_shift;
1317 ShImm = CurDAG->getTargetConstant(ShAmt, MVT::i32);
1322 //===--------------------------------------------------------------------===//
1324 /// getAL - Returns a ARMCC::AL immediate node.
1325 static inline SDValue getAL(SelectionDAG *CurDAG) {
1326 return CurDAG->getTargetConstant((uint64_t)ARMCC::AL, MVT::i32);
1329 SDNode *ARMDAGToDAGISel::SelectARMIndexedLoad(SDNode *N) {
1330 LoadSDNode *LD = cast<LoadSDNode>(N);
1331 ISD::MemIndexedMode AM = LD->getAddressingMode();
1332 if (AM == ISD::UNINDEXED)
1335 EVT LoadedVT = LD->getMemoryVT();
1336 SDValue Offset, AMOpc;
1337 bool isPre = (AM == ISD::PRE_INC) || (AM == ISD::PRE_DEC);
1338 unsigned Opcode = 0;
1340 if (LoadedVT == MVT::i32 && isPre &&
1341 SelectAddrMode2OffsetImmPre(N, LD->getOffset(), Offset, AMOpc)) {
1342 Opcode = ARM::LDR_PRE_IMM;
1344 } else if (LoadedVT == MVT::i32 && !isPre &&
1345 SelectAddrMode2OffsetImm(N, LD->getOffset(), Offset, AMOpc)) {
1346 Opcode = ARM::LDR_POST_IMM;
1348 } else if (LoadedVT == MVT::i32 &&
1349 SelectAddrMode2OffsetReg(N, LD->getOffset(), Offset, AMOpc)) {
1350 Opcode = isPre ? ARM::LDR_PRE_REG : ARM::LDR_POST_REG;
1353 } else if (LoadedVT == MVT::i16 &&
1354 SelectAddrMode3Offset(N, LD->getOffset(), Offset, AMOpc)) {
1356 Opcode = (LD->getExtensionType() == ISD::SEXTLOAD)
1357 ? (isPre ? ARM::LDRSH_PRE : ARM::LDRSH_POST)
1358 : (isPre ? ARM::LDRH_PRE : ARM::LDRH_POST);
1359 } else if (LoadedVT == MVT::i8 || LoadedVT == MVT::i1) {
1360 if (LD->getExtensionType() == ISD::SEXTLOAD) {
1361 if (SelectAddrMode3Offset(N, LD->getOffset(), Offset, AMOpc)) {
1363 Opcode = isPre ? ARM::LDRSB_PRE : ARM::LDRSB_POST;
1367 SelectAddrMode2OffsetImmPre(N, LD->getOffset(), Offset, AMOpc)) {
1369 Opcode = ARM::LDRB_PRE_IMM;
1370 } else if (!isPre &&
1371 SelectAddrMode2OffsetImm(N, LD->getOffset(), Offset, AMOpc)) {
1373 Opcode = ARM::LDRB_POST_IMM;
1374 } else if (SelectAddrMode2OffsetReg(N, LD->getOffset(), Offset, AMOpc)) {
1376 Opcode = isPre ? ARM::LDRB_PRE_REG : ARM::LDRB_POST_REG;
1382 if (Opcode == ARM::LDR_PRE_IMM || Opcode == ARM::LDRB_PRE_IMM) {
1383 SDValue Chain = LD->getChain();
1384 SDValue Base = LD->getBasePtr();
1385 SDValue Ops[]= { Base, AMOpc, getAL(CurDAG),
1386 CurDAG->getRegister(0, MVT::i32), Chain };
1387 return CurDAG->getMachineNode(Opcode, N->getDebugLoc(), MVT::i32,
1388 MVT::i32, MVT::Other, Ops, 5);
1390 SDValue Chain = LD->getChain();
1391 SDValue Base = LD->getBasePtr();
1392 SDValue Ops[]= { Base, Offset, AMOpc, getAL(CurDAG),
1393 CurDAG->getRegister(0, MVT::i32), Chain };
1394 return CurDAG->getMachineNode(Opcode, N->getDebugLoc(), MVT::i32,
1395 MVT::i32, MVT::Other, Ops, 6);
1402 SDNode *ARMDAGToDAGISel::SelectT2IndexedLoad(SDNode *N) {
1403 LoadSDNode *LD = cast<LoadSDNode>(N);
1404 ISD::MemIndexedMode AM = LD->getAddressingMode();
1405 if (AM == ISD::UNINDEXED)
1408 EVT LoadedVT = LD->getMemoryVT();
1409 bool isSExtLd = LD->getExtensionType() == ISD::SEXTLOAD;
1411 bool isPre = (AM == ISD::PRE_INC) || (AM == ISD::PRE_DEC);
1412 unsigned Opcode = 0;
1414 if (SelectT2AddrModeImm8Offset(N, LD->getOffset(), Offset)) {
1415 switch (LoadedVT.getSimpleVT().SimpleTy) {
1417 Opcode = isPre ? ARM::t2LDR_PRE : ARM::t2LDR_POST;
1421 Opcode = isPre ? ARM::t2LDRSH_PRE : ARM::t2LDRSH_POST;
1423 Opcode = isPre ? ARM::t2LDRH_PRE : ARM::t2LDRH_POST;
1428 Opcode = isPre ? ARM::t2LDRSB_PRE : ARM::t2LDRSB_POST;
1430 Opcode = isPre ? ARM::t2LDRB_PRE : ARM::t2LDRB_POST;
1439 SDValue Chain = LD->getChain();
1440 SDValue Base = LD->getBasePtr();
1441 SDValue Ops[]= { Base, Offset, getAL(CurDAG),
1442 CurDAG->getRegister(0, MVT::i32), Chain };
1443 return CurDAG->getMachineNode(Opcode, N->getDebugLoc(), MVT::i32, MVT::i32,
1444 MVT::Other, Ops, 5);
1450 /// PairSRegs - Form a D register from a pair of S registers.
1452 SDNode *ARMDAGToDAGISel::PairSRegs(EVT VT, SDValue V0, SDValue V1) {
1453 DebugLoc dl = V0.getNode()->getDebugLoc();
1455 CurDAG->getTargetConstant(ARM::DPR_VFP2RegClassID, MVT::i32);
1456 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::ssub_0, MVT::i32);
1457 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::ssub_1, MVT::i32);
1458 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1 };
1459 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 5);
1462 /// PairDRegs - Form a quad register from a pair of D registers.
1464 SDNode *ARMDAGToDAGISel::PairDRegs(EVT VT, SDValue V0, SDValue V1) {
1465 DebugLoc dl = V0.getNode()->getDebugLoc();
1466 SDValue RegClass = CurDAG->getTargetConstant(ARM::QPRRegClassID, MVT::i32);
1467 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::dsub_0, MVT::i32);
1468 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::dsub_1, MVT::i32);
1469 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1 };
1470 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 5);
1473 /// PairQRegs - Form 4 consecutive D registers from a pair of Q registers.
1475 SDNode *ARMDAGToDAGISel::PairQRegs(EVT VT, SDValue V0, SDValue V1) {
1476 DebugLoc dl = V0.getNode()->getDebugLoc();
1477 SDValue RegClass = CurDAG->getTargetConstant(ARM::QQPRRegClassID, MVT::i32);
1478 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::qsub_0, MVT::i32);
1479 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::qsub_1, MVT::i32);
1480 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1 };
1481 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 5);
1484 /// QuadSRegs - Form 4 consecutive S registers.
1486 SDNode *ARMDAGToDAGISel::QuadSRegs(EVT VT, SDValue V0, SDValue V1,
1487 SDValue V2, SDValue V3) {
1488 DebugLoc dl = V0.getNode()->getDebugLoc();
1490 CurDAG->getTargetConstant(ARM::QPR_VFP2RegClassID, MVT::i32);
1491 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::ssub_0, MVT::i32);
1492 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::ssub_1, MVT::i32);
1493 SDValue SubReg2 = CurDAG->getTargetConstant(ARM::ssub_2, MVT::i32);
1494 SDValue SubReg3 = CurDAG->getTargetConstant(ARM::ssub_3, MVT::i32);
1495 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1,
1496 V2, SubReg2, V3, SubReg3 };
1497 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 9);
1500 /// QuadDRegs - Form 4 consecutive D registers.
1502 SDNode *ARMDAGToDAGISel::QuadDRegs(EVT VT, SDValue V0, SDValue V1,
1503 SDValue V2, SDValue V3) {
1504 DebugLoc dl = V0.getNode()->getDebugLoc();
1505 SDValue RegClass = CurDAG->getTargetConstant(ARM::QQPRRegClassID, MVT::i32);
1506 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::dsub_0, MVT::i32);
1507 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::dsub_1, MVT::i32);
1508 SDValue SubReg2 = CurDAG->getTargetConstant(ARM::dsub_2, MVT::i32);
1509 SDValue SubReg3 = CurDAG->getTargetConstant(ARM::dsub_3, MVT::i32);
1510 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1,
1511 V2, SubReg2, V3, SubReg3 };
1512 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 9);
1515 /// QuadQRegs - Form 4 consecutive Q registers.
1517 SDNode *ARMDAGToDAGISel::QuadQRegs(EVT VT, SDValue V0, SDValue V1,
1518 SDValue V2, SDValue V3) {
1519 DebugLoc dl = V0.getNode()->getDebugLoc();
1520 SDValue RegClass = CurDAG->getTargetConstant(ARM::QQQQPRRegClassID, MVT::i32);
1521 SDValue SubReg0 = CurDAG->getTargetConstant(ARM::qsub_0, MVT::i32);
1522 SDValue SubReg1 = CurDAG->getTargetConstant(ARM::qsub_1, MVT::i32);
1523 SDValue SubReg2 = CurDAG->getTargetConstant(ARM::qsub_2, MVT::i32);
1524 SDValue SubReg3 = CurDAG->getTargetConstant(ARM::qsub_3, MVT::i32);
1525 const SDValue Ops[] = { RegClass, V0, SubReg0, V1, SubReg1,
1526 V2, SubReg2, V3, SubReg3 };
1527 return CurDAG->getMachineNode(TargetOpcode::REG_SEQUENCE, dl, VT, Ops, 9);
1530 /// GetVLDSTAlign - Get the alignment (in bytes) for the alignment operand
1531 /// of a NEON VLD or VST instruction. The supported values depend on the
1532 /// number of registers being loaded.
1533 SDValue ARMDAGToDAGISel::GetVLDSTAlign(SDValue Align, unsigned NumVecs,
1534 bool is64BitVector) {
1535 unsigned NumRegs = NumVecs;
1536 if (!is64BitVector && NumVecs < 3)
1539 unsigned Alignment = cast<ConstantSDNode>(Align)->getZExtValue();
1540 if (Alignment >= 32 && NumRegs == 4)
1542 else if (Alignment >= 16 && (NumRegs == 2 || NumRegs == 4))
1544 else if (Alignment >= 8)
1549 return CurDAG->getTargetConstant(Alignment, MVT::i32);
1552 // Get the register stride update opcode of a VLD/VST instruction that
1553 // is otherwise equivalent to the given fixed stride updating instruction.
1554 static unsigned getVLDSTRegisterUpdateOpcode(unsigned Opc) {
1557 case ARM::VLD1d8wb_fixed: return ARM::VLD1d8wb_register;
1558 case ARM::VLD1d16wb_fixed: return ARM::VLD1d16wb_register;
1559 case ARM::VLD1d32wb_fixed: return ARM::VLD1d32wb_register;
1560 case ARM::VLD1d64wb_fixed: return ARM::VLD1d64wb_register;
1561 case ARM::VLD1q8wb_fixed: return ARM::VLD1q8wb_register;
1562 case ARM::VLD1q16wb_fixed: return ARM::VLD1q16wb_register;
1563 case ARM::VLD1q32wb_fixed: return ARM::VLD1q32wb_register;
1564 case ARM::VLD1q64wb_fixed: return ARM::VLD1q64wb_register;
1565 case ARM::VLD1q8PseudoWB_fixed: return ARM::VLD1q8PseudoWB_register;
1566 case ARM::VLD1q16PseudoWB_fixed: return ARM::VLD1q16PseudoWB_register;
1567 case ARM::VLD1q32PseudoWB_fixed: return ARM::VLD1q32PseudoWB_register;
1568 case ARM::VLD1q64PseudoWB_fixed: return ARM::VLD1q64PseudoWB_register;
1570 case ARM::VST1d8wb_fixed: return ARM::VST1d8wb_register;
1571 case ARM::VST1d16wb_fixed: return ARM::VST1d16wb_register;
1572 case ARM::VST1d32wb_fixed: return ARM::VST1d32wb_register;
1573 case ARM::VST1d64wb_fixed: return ARM::VST1d64wb_register;
1574 case ARM::VST1q8wb_fixed: return ARM::VST1q8wb_register;
1575 case ARM::VST1q16wb_fixed: return ARM::VST1q16wb_register;
1576 case ARM::VST1q32wb_fixed: return ARM::VST1q32wb_register;
1577 case ARM::VST1q64wb_fixed: return ARM::VST1q64wb_register;
1578 case ARM::VST1q8PseudoWB_fixed: return ARM::VST1q8PseudoWB_register;
1579 case ARM::VST1q16PseudoWB_fixed: return ARM::VST1q16PseudoWB_register;
1580 case ARM::VST1q32PseudoWB_fixed: return ARM::VST1q32PseudoWB_register;
1581 case ARM::VST1q64PseudoWB_fixed: return ARM::VST1q64PseudoWB_register;
1582 case ARM::VST1d64TPseudoWB_fixed: return ARM::VST1d64TPseudoWB_register;
1583 case ARM::VST1d64QPseudoWB_fixed: return ARM::VST1d64QPseudoWB_register;
1585 case ARM::VLD2d8PseudoWB_fixed: return ARM::VLD2d8PseudoWB_register;
1586 case ARM::VLD2d16PseudoWB_fixed: return ARM::VLD2d16PseudoWB_register;
1587 case ARM::VLD2d32PseudoWB_fixed: return ARM::VLD2d32PseudoWB_register;
1588 case ARM::VLD2q8PseudoWB_fixed: return ARM::VLD2q8PseudoWB_register;
1589 case ARM::VLD2q16PseudoWB_fixed: return ARM::VLD2q16PseudoWB_register;
1590 case ARM::VLD2q32PseudoWB_fixed: return ARM::VLD2q32PseudoWB_register;
1593 return Opc; // If not one we handle, return it unchanged.
1596 SDNode *ARMDAGToDAGISel::SelectVLD(SDNode *N, bool isUpdating, unsigned NumVecs,
1597 unsigned *DOpcodes, unsigned *QOpcodes0,
1598 unsigned *QOpcodes1) {
1599 assert(NumVecs >= 1 && NumVecs <= 4 && "VLD NumVecs out-of-range");
1600 DebugLoc dl = N->getDebugLoc();
1602 SDValue MemAddr, Align;
1603 unsigned AddrOpIdx = isUpdating ? 1 : 2;
1604 if (!SelectAddrMode6(N, N->getOperand(AddrOpIdx), MemAddr, Align))
1607 SDValue Chain = N->getOperand(0);
1608 EVT VT = N->getValueType(0);
1609 bool is64BitVector = VT.is64BitVector();
1610 Align = GetVLDSTAlign(Align, NumVecs, is64BitVector);
1612 unsigned OpcodeIndex;
1613 switch (VT.getSimpleVT().SimpleTy) {
1614 default: llvm_unreachable("unhandled vld type");
1615 // Double-register operations:
1616 case MVT::v8i8: OpcodeIndex = 0; break;
1617 case MVT::v4i16: OpcodeIndex = 1; break;
1619 case MVT::v2i32: OpcodeIndex = 2; break;
1620 case MVT::v1i64: OpcodeIndex = 3; break;
1621 // Quad-register operations:
1622 case MVT::v16i8: OpcodeIndex = 0; break;
1623 case MVT::v8i16: OpcodeIndex = 1; break;
1625 case MVT::v4i32: OpcodeIndex = 2; break;
1626 case MVT::v2i64: OpcodeIndex = 3;
1627 assert(NumVecs == 1 && "v2i64 type only supported for VLD1");
1635 unsigned ResTyElts = (NumVecs == 3) ? 4 : NumVecs;
1638 ResTy = EVT::getVectorVT(*CurDAG->getContext(), MVT::i64, ResTyElts);
1640 std::vector<EVT> ResTys;
1641 ResTys.push_back(ResTy);
1643 ResTys.push_back(MVT::i32);
1644 ResTys.push_back(MVT::Other);
1646 SDValue Pred = getAL(CurDAG);
1647 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
1649 SmallVector<SDValue, 7> Ops;
1651 // Double registers and VLD1/VLD2 quad registers are directly supported.
1652 if (is64BitVector || NumVecs <= 2) {
1653 unsigned Opc = (is64BitVector ? DOpcodes[OpcodeIndex] :
1654 QOpcodes0[OpcodeIndex]);
1655 Ops.push_back(MemAddr);
1656 Ops.push_back(Align);
1658 SDValue Inc = N->getOperand(AddrOpIdx + 1);
1659 // FIXME: VLD1/VLD2 fixed increment doesn't need Reg0. Remove the reg0
1660 // case entirely when the rest are updated to that form, too.
1661 if ((NumVecs == 1 || NumVecs == 2) && !isa<ConstantSDNode>(Inc.getNode()))
1662 Opc = getVLDSTRegisterUpdateOpcode(Opc);
1663 // We use a VLD1 for v1i64 even if the pseudo says vld2/3/4, so
1664 // check for that explicitly too. Horribly hacky, but temporary.
1665 if ((NumVecs != 1 && NumVecs != 2 && Opc != ARM::VLD1q64PseudoWB_fixed) ||
1666 !isa<ConstantSDNode>(Inc.getNode()))
1667 Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
1669 Ops.push_back(Pred);
1670 Ops.push_back(Reg0);
1671 Ops.push_back(Chain);
1672 VLd = CurDAG->getMachineNode(Opc, dl, ResTys, Ops.data(), Ops.size());
1675 // Otherwise, quad registers are loaded with two separate instructions,
1676 // where one loads the even registers and the other loads the odd registers.
1677 EVT AddrTy = MemAddr.getValueType();
1679 // Load the even subregs. This is always an updating load, so that it
1680 // provides the address to the second load for the odd subregs.
1682 SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, ResTy), 0);
1683 const SDValue OpsA[] = { MemAddr, Align, Reg0, ImplDef, Pred, Reg0, Chain };
1684 SDNode *VLdA = CurDAG->getMachineNode(QOpcodes0[OpcodeIndex], dl,
1685 ResTy, AddrTy, MVT::Other, OpsA, 7);
1686 Chain = SDValue(VLdA, 2);
1688 // Load the odd subregs.
1689 Ops.push_back(SDValue(VLdA, 1));
1690 Ops.push_back(Align);
1692 SDValue Inc = N->getOperand(AddrOpIdx + 1);
1693 assert(isa<ConstantSDNode>(Inc.getNode()) &&
1694 "only constant post-increment update allowed for VLD3/4");
1696 Ops.push_back(Reg0);
1698 Ops.push_back(SDValue(VLdA, 0));
1699 Ops.push_back(Pred);
1700 Ops.push_back(Reg0);
1701 Ops.push_back(Chain);
1702 VLd = CurDAG->getMachineNode(QOpcodes1[OpcodeIndex], dl, ResTys,
1703 Ops.data(), Ops.size());
1706 // Transfer memoperands.
1707 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
1708 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
1709 cast<MachineSDNode>(VLd)->setMemRefs(MemOp, MemOp + 1);
1714 // Extract out the subregisters.
1715 SDValue SuperReg = SDValue(VLd, 0);
1716 assert(ARM::dsub_7 == ARM::dsub_0+7 &&
1717 ARM::qsub_3 == ARM::qsub_0+3 && "Unexpected subreg numbering");
1718 unsigned Sub0 = (is64BitVector ? ARM::dsub_0 : ARM::qsub_0);
1719 for (unsigned Vec = 0; Vec < NumVecs; ++Vec)
1720 ReplaceUses(SDValue(N, Vec),
1721 CurDAG->getTargetExtractSubreg(Sub0 + Vec, dl, VT, SuperReg));
1722 ReplaceUses(SDValue(N, NumVecs), SDValue(VLd, 1));
1724 ReplaceUses(SDValue(N, NumVecs + 1), SDValue(VLd, 2));
1728 SDNode *ARMDAGToDAGISel::SelectVST(SDNode *N, bool isUpdating, unsigned NumVecs,
1729 unsigned *DOpcodes, unsigned *QOpcodes0,
1730 unsigned *QOpcodes1) {
1731 assert(NumVecs >= 1 && NumVecs <= 4 && "VST NumVecs out-of-range");
1732 DebugLoc dl = N->getDebugLoc();
1734 SDValue MemAddr, Align;
1735 unsigned AddrOpIdx = isUpdating ? 1 : 2;
1736 unsigned Vec0Idx = 3; // AddrOpIdx + (isUpdating ? 2 : 1)
1737 if (!SelectAddrMode6(N, N->getOperand(AddrOpIdx), MemAddr, Align))
1740 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
1741 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
1743 SDValue Chain = N->getOperand(0);
1744 EVT VT = N->getOperand(Vec0Idx).getValueType();
1745 bool is64BitVector = VT.is64BitVector();
1746 Align = GetVLDSTAlign(Align, NumVecs, is64BitVector);
1748 unsigned OpcodeIndex;
1749 switch (VT.getSimpleVT().SimpleTy) {
1750 default: llvm_unreachable("unhandled vst type");
1751 // Double-register operations:
1752 case MVT::v8i8: OpcodeIndex = 0; break;
1753 case MVT::v4i16: OpcodeIndex = 1; break;
1755 case MVT::v2i32: OpcodeIndex = 2; break;
1756 case MVT::v1i64: OpcodeIndex = 3; break;
1757 // Quad-register operations:
1758 case MVT::v16i8: OpcodeIndex = 0; break;
1759 case MVT::v8i16: OpcodeIndex = 1; break;
1761 case MVT::v4i32: OpcodeIndex = 2; break;
1762 case MVT::v2i64: OpcodeIndex = 3;
1763 assert(NumVecs == 1 && "v2i64 type only supported for VST1");
1767 std::vector<EVT> ResTys;
1769 ResTys.push_back(MVT::i32);
1770 ResTys.push_back(MVT::Other);
1772 SDValue Pred = getAL(CurDAG);
1773 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
1774 SmallVector<SDValue, 7> Ops;
1776 // Double registers and VST1/VST2 quad registers are directly supported.
1777 if (is64BitVector || NumVecs <= 2) {
1780 SrcReg = N->getOperand(Vec0Idx);
1781 } else if (is64BitVector) {
1782 // Form a REG_SEQUENCE to force register allocation.
1783 SDValue V0 = N->getOperand(Vec0Idx + 0);
1784 SDValue V1 = N->getOperand(Vec0Idx + 1);
1786 SrcReg = SDValue(PairDRegs(MVT::v2i64, V0, V1), 0);
1788 SDValue V2 = N->getOperand(Vec0Idx + 2);
1789 // If it's a vst3, form a quad D-register and leave the last part as
1791 SDValue V3 = (NumVecs == 3)
1792 ? SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF,dl,VT), 0)
1793 : N->getOperand(Vec0Idx + 3);
1794 SrcReg = SDValue(QuadDRegs(MVT::v4i64, V0, V1, V2, V3), 0);
1797 // Form a QQ register.
1798 SDValue Q0 = N->getOperand(Vec0Idx);
1799 SDValue Q1 = N->getOperand(Vec0Idx + 1);
1800 SrcReg = SDValue(PairQRegs(MVT::v4i64, Q0, Q1), 0);
1803 unsigned Opc = (is64BitVector ? DOpcodes[OpcodeIndex] :
1804 QOpcodes0[OpcodeIndex]);
1805 Ops.push_back(MemAddr);
1806 Ops.push_back(Align);
1808 SDValue Inc = N->getOperand(AddrOpIdx + 1);
1809 // FIXME: VST1 fixed increment doesn't need Reg0. Remove the reg0
1810 // case entirely when the rest are updated to that form, too.
1811 if (NumVecs == 1 && !isa<ConstantSDNode>(Inc.getNode()))
1812 Opc = getVLDSTRegisterUpdateOpcode(Opc);
1813 // We use a VST1 for v1i64 even if the pseudo says vld2/3/4, so
1814 // check for that explicitly too. Horribly hacky, but temporary.
1815 if ((NumVecs != 1 && Opc != ARM::VST1q64PseudoWB_fixed) ||
1816 !isa<ConstantSDNode>(Inc.getNode()))
1817 Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
1819 Ops.push_back(SrcReg);
1820 Ops.push_back(Pred);
1821 Ops.push_back(Reg0);
1822 Ops.push_back(Chain);
1824 CurDAG->getMachineNode(Opc, dl, ResTys, Ops.data(), Ops.size());
1826 // Transfer memoperands.
1827 cast<MachineSDNode>(VSt)->setMemRefs(MemOp, MemOp + 1);
1832 // Otherwise, quad registers are stored with two separate instructions,
1833 // where one stores the even registers and the other stores the odd registers.
1835 // Form the QQQQ REG_SEQUENCE.
1836 SDValue V0 = N->getOperand(Vec0Idx + 0);
1837 SDValue V1 = N->getOperand(Vec0Idx + 1);
1838 SDValue V2 = N->getOperand(Vec0Idx + 2);
1839 SDValue V3 = (NumVecs == 3)
1840 ? SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, VT), 0)
1841 : N->getOperand(Vec0Idx + 3);
1842 SDValue RegSeq = SDValue(QuadQRegs(MVT::v8i64, V0, V1, V2, V3), 0);
1844 // Store the even D registers. This is always an updating store, so that it
1845 // provides the address to the second store for the odd subregs.
1846 const SDValue OpsA[] = { MemAddr, Align, Reg0, RegSeq, Pred, Reg0, Chain };
1847 SDNode *VStA = CurDAG->getMachineNode(QOpcodes0[OpcodeIndex], dl,
1848 MemAddr.getValueType(),
1849 MVT::Other, OpsA, 7);
1850 cast<MachineSDNode>(VStA)->setMemRefs(MemOp, MemOp + 1);
1851 Chain = SDValue(VStA, 1);
1853 // Store the odd D registers.
1854 Ops.push_back(SDValue(VStA, 0));
1855 Ops.push_back(Align);
1857 SDValue Inc = N->getOperand(AddrOpIdx + 1);
1858 assert(isa<ConstantSDNode>(Inc.getNode()) &&
1859 "only constant post-increment update allowed for VST3/4");
1861 Ops.push_back(Reg0);
1863 Ops.push_back(RegSeq);
1864 Ops.push_back(Pred);
1865 Ops.push_back(Reg0);
1866 Ops.push_back(Chain);
1867 SDNode *VStB = CurDAG->getMachineNode(QOpcodes1[OpcodeIndex], dl, ResTys,
1868 Ops.data(), Ops.size());
1869 cast<MachineSDNode>(VStB)->setMemRefs(MemOp, MemOp + 1);
1873 SDNode *ARMDAGToDAGISel::SelectVLDSTLane(SDNode *N, bool IsLoad,
1874 bool isUpdating, unsigned NumVecs,
1876 unsigned *QOpcodes) {
1877 assert(NumVecs >=2 && NumVecs <= 4 && "VLDSTLane NumVecs out-of-range");
1878 DebugLoc dl = N->getDebugLoc();
1880 SDValue MemAddr, Align;
1881 unsigned AddrOpIdx = isUpdating ? 1 : 2;
1882 unsigned Vec0Idx = 3; // AddrOpIdx + (isUpdating ? 2 : 1)
1883 if (!SelectAddrMode6(N, N->getOperand(AddrOpIdx), MemAddr, Align))
1886 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
1887 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
1889 SDValue Chain = N->getOperand(0);
1891 cast<ConstantSDNode>(N->getOperand(Vec0Idx + NumVecs))->getZExtValue();
1892 EVT VT = N->getOperand(Vec0Idx).getValueType();
1893 bool is64BitVector = VT.is64BitVector();
1895 unsigned Alignment = 0;
1897 Alignment = cast<ConstantSDNode>(Align)->getZExtValue();
1898 unsigned NumBytes = NumVecs * VT.getVectorElementType().getSizeInBits()/8;
1899 if (Alignment > NumBytes)
1900 Alignment = NumBytes;
1901 if (Alignment < 8 && Alignment < NumBytes)
1903 // Alignment must be a power of two; make sure of that.
1904 Alignment = (Alignment & -Alignment);
1908 Align = CurDAG->getTargetConstant(Alignment, MVT::i32);
1910 unsigned OpcodeIndex;
1911 switch (VT.getSimpleVT().SimpleTy) {
1912 default: llvm_unreachable("unhandled vld/vst lane type");
1913 // Double-register operations:
1914 case MVT::v8i8: OpcodeIndex = 0; break;
1915 case MVT::v4i16: OpcodeIndex = 1; break;
1917 case MVT::v2i32: OpcodeIndex = 2; break;
1918 // Quad-register operations:
1919 case MVT::v8i16: OpcodeIndex = 0; break;
1921 case MVT::v4i32: OpcodeIndex = 1; break;
1924 std::vector<EVT> ResTys;
1926 unsigned ResTyElts = (NumVecs == 3) ? 4 : NumVecs;
1929 ResTys.push_back(EVT::getVectorVT(*CurDAG->getContext(),
1930 MVT::i64, ResTyElts));
1933 ResTys.push_back(MVT::i32);
1934 ResTys.push_back(MVT::Other);
1936 SDValue Pred = getAL(CurDAG);
1937 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
1939 SmallVector<SDValue, 8> Ops;
1940 Ops.push_back(MemAddr);
1941 Ops.push_back(Align);
1943 SDValue Inc = N->getOperand(AddrOpIdx + 1);
1944 Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
1948 SDValue V0 = N->getOperand(Vec0Idx + 0);
1949 SDValue V1 = N->getOperand(Vec0Idx + 1);
1952 SuperReg = SDValue(PairDRegs(MVT::v2i64, V0, V1), 0);
1954 SuperReg = SDValue(PairQRegs(MVT::v4i64, V0, V1), 0);
1956 SDValue V2 = N->getOperand(Vec0Idx + 2);
1957 SDValue V3 = (NumVecs == 3)
1958 ? SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, VT), 0)
1959 : N->getOperand(Vec0Idx + 3);
1961 SuperReg = SDValue(QuadDRegs(MVT::v4i64, V0, V1, V2, V3), 0);
1963 SuperReg = SDValue(QuadQRegs(MVT::v8i64, V0, V1, V2, V3), 0);
1965 Ops.push_back(SuperReg);
1966 Ops.push_back(getI32Imm(Lane));
1967 Ops.push_back(Pred);
1968 Ops.push_back(Reg0);
1969 Ops.push_back(Chain);
1971 unsigned Opc = (is64BitVector ? DOpcodes[OpcodeIndex] :
1972 QOpcodes[OpcodeIndex]);
1973 SDNode *VLdLn = CurDAG->getMachineNode(Opc, dl, ResTys,
1974 Ops.data(), Ops.size());
1975 cast<MachineSDNode>(VLdLn)->setMemRefs(MemOp, MemOp + 1);
1979 // Extract the subregisters.
1980 SuperReg = SDValue(VLdLn, 0);
1981 assert(ARM::dsub_7 == ARM::dsub_0+7 &&
1982 ARM::qsub_3 == ARM::qsub_0+3 && "Unexpected subreg numbering");
1983 unsigned Sub0 = is64BitVector ? ARM::dsub_0 : ARM::qsub_0;
1984 for (unsigned Vec = 0; Vec < NumVecs; ++Vec)
1985 ReplaceUses(SDValue(N, Vec),
1986 CurDAG->getTargetExtractSubreg(Sub0 + Vec, dl, VT, SuperReg));
1987 ReplaceUses(SDValue(N, NumVecs), SDValue(VLdLn, 1));
1989 ReplaceUses(SDValue(N, NumVecs + 1), SDValue(VLdLn, 2));
1993 SDNode *ARMDAGToDAGISel::SelectVLDDup(SDNode *N, bool isUpdating,
1994 unsigned NumVecs, unsigned *Opcodes) {
1995 assert(NumVecs >=2 && NumVecs <= 4 && "VLDDup NumVecs out-of-range");
1996 DebugLoc dl = N->getDebugLoc();
1998 SDValue MemAddr, Align;
1999 if (!SelectAddrMode6(N, N->getOperand(1), MemAddr, Align))
2002 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
2003 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
2005 SDValue Chain = N->getOperand(0);
2006 EVT VT = N->getValueType(0);
2008 unsigned Alignment = 0;
2010 Alignment = cast<ConstantSDNode>(Align)->getZExtValue();
2011 unsigned NumBytes = NumVecs * VT.getVectorElementType().getSizeInBits()/8;
2012 if (Alignment > NumBytes)
2013 Alignment = NumBytes;
2014 if (Alignment < 8 && Alignment < NumBytes)
2016 // Alignment must be a power of two; make sure of that.
2017 Alignment = (Alignment & -Alignment);
2021 Align = CurDAG->getTargetConstant(Alignment, MVT::i32);
2023 unsigned OpcodeIndex;
2024 switch (VT.getSimpleVT().SimpleTy) {
2025 default: llvm_unreachable("unhandled vld-dup type");
2026 case MVT::v8i8: OpcodeIndex = 0; break;
2027 case MVT::v4i16: OpcodeIndex = 1; break;
2029 case MVT::v2i32: OpcodeIndex = 2; break;
2032 SDValue Pred = getAL(CurDAG);
2033 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
2035 unsigned Opc = Opcodes[OpcodeIndex];
2036 SmallVector<SDValue, 6> Ops;
2037 Ops.push_back(MemAddr);
2038 Ops.push_back(Align);
2040 SDValue Inc = N->getOperand(2);
2041 Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
2043 Ops.push_back(Pred);
2044 Ops.push_back(Reg0);
2045 Ops.push_back(Chain);
2047 unsigned ResTyElts = (NumVecs == 3) ? 4 : NumVecs;
2048 std::vector<EVT> ResTys;
2049 ResTys.push_back(EVT::getVectorVT(*CurDAG->getContext(), MVT::i64,ResTyElts));
2051 ResTys.push_back(MVT::i32);
2052 ResTys.push_back(MVT::Other);
2054 CurDAG->getMachineNode(Opc, dl, ResTys, Ops.data(), Ops.size());
2055 cast<MachineSDNode>(VLdDup)->setMemRefs(MemOp, MemOp + 1);
2056 SuperReg = SDValue(VLdDup, 0);
2058 // Extract the subregisters.
2059 assert(ARM::dsub_7 == ARM::dsub_0+7 && "Unexpected subreg numbering");
2060 unsigned SubIdx = ARM::dsub_0;
2061 for (unsigned Vec = 0; Vec < NumVecs; ++Vec)
2062 ReplaceUses(SDValue(N, Vec),
2063 CurDAG->getTargetExtractSubreg(SubIdx+Vec, dl, VT, SuperReg));
2064 ReplaceUses(SDValue(N, NumVecs), SDValue(VLdDup, 1));
2066 ReplaceUses(SDValue(N, NumVecs + 1), SDValue(VLdDup, 2));
2070 SDNode *ARMDAGToDAGISel::SelectVTBL(SDNode *N, bool IsExt, unsigned NumVecs,
2072 assert(NumVecs >= 2 && NumVecs <= 4 && "VTBL NumVecs out-of-range");
2073 DebugLoc dl = N->getDebugLoc();
2074 EVT VT = N->getValueType(0);
2075 unsigned FirstTblReg = IsExt ? 2 : 1;
2077 // Form a REG_SEQUENCE to force register allocation.
2079 SDValue V0 = N->getOperand(FirstTblReg + 0);
2080 SDValue V1 = N->getOperand(FirstTblReg + 1);
2082 RegSeq = SDValue(PairDRegs(MVT::v16i8, V0, V1), 0);
2084 SDValue V2 = N->getOperand(FirstTblReg + 2);
2085 // If it's a vtbl3, form a quad D-register and leave the last part as
2087 SDValue V3 = (NumVecs == 3)
2088 ? SDValue(CurDAG->getMachineNode(TargetOpcode::IMPLICIT_DEF, dl, VT), 0)
2089 : N->getOperand(FirstTblReg + 3);
2090 RegSeq = SDValue(QuadDRegs(MVT::v4i64, V0, V1, V2, V3), 0);
2093 SmallVector<SDValue, 6> Ops;
2095 Ops.push_back(N->getOperand(1));
2096 Ops.push_back(RegSeq);
2097 Ops.push_back(N->getOperand(FirstTblReg + NumVecs));
2098 Ops.push_back(getAL(CurDAG)); // predicate
2099 Ops.push_back(CurDAG->getRegister(0, MVT::i32)); // predicate register
2100 return CurDAG->getMachineNode(Opc, dl, VT, Ops.data(), Ops.size());
2103 SDNode *ARMDAGToDAGISel::SelectV6T2BitfieldExtractOp(SDNode *N,
2105 if (!Subtarget->hasV6T2Ops())
2108 unsigned Opc = isSigned ? (Subtarget->isThumb() ? ARM::t2SBFX : ARM::SBFX)
2109 : (Subtarget->isThumb() ? ARM::t2UBFX : ARM::UBFX);
2112 // For unsigned extracts, check for a shift right and mask
2113 unsigned And_imm = 0;
2114 if (N->getOpcode() == ISD::AND) {
2115 if (isOpcWithIntImmediate(N, ISD::AND, And_imm)) {
2117 // The immediate is a mask of the low bits iff imm & (imm+1) == 0
2118 if (And_imm & (And_imm + 1))
2121 unsigned Srl_imm = 0;
2122 if (isOpcWithIntImmediate(N->getOperand(0).getNode(), ISD::SRL,
2124 assert(Srl_imm > 0 && Srl_imm < 32 && "bad amount in shift node!");
2126 // Note: The width operand is encoded as width-1.
2127 unsigned Width = CountTrailingOnes_32(And_imm) - 1;
2128 unsigned LSB = Srl_imm;
2129 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
2130 SDValue Ops[] = { N->getOperand(0).getOperand(0),
2131 CurDAG->getTargetConstant(LSB, MVT::i32),
2132 CurDAG->getTargetConstant(Width, MVT::i32),
2133 getAL(CurDAG), Reg0 };
2134 return CurDAG->SelectNodeTo(N, Opc, MVT::i32, Ops, 5);
2140 // Otherwise, we're looking for a shift of a shift
2141 unsigned Shl_imm = 0;
2142 if (isOpcWithIntImmediate(N->getOperand(0).getNode(), ISD::SHL, Shl_imm)) {
2143 assert(Shl_imm > 0 && Shl_imm < 32 && "bad amount in shift node!");
2144 unsigned Srl_imm = 0;
2145 if (isInt32Immediate(N->getOperand(1), Srl_imm)) {
2146 assert(Srl_imm > 0 && Srl_imm < 32 && "bad amount in shift node!");
2147 // Note: The width operand is encoded as width-1.
2148 unsigned Width = 32 - Srl_imm - 1;
2149 int LSB = Srl_imm - Shl_imm;
2152 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
2153 SDValue Ops[] = { N->getOperand(0).getOperand(0),
2154 CurDAG->getTargetConstant(LSB, MVT::i32),
2155 CurDAG->getTargetConstant(Width, MVT::i32),
2156 getAL(CurDAG), Reg0 };
2157 return CurDAG->SelectNodeTo(N, Opc, MVT::i32, Ops, 5);
2163 SDNode *ARMDAGToDAGISel::
2164 SelectT2CMOVShiftOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
2165 ARMCC::CondCodes CCVal, SDValue CCR, SDValue InFlag) {
2168 if (SelectT2ShifterOperandReg(TrueVal, CPTmp0, CPTmp1)) {
2169 unsigned SOVal = cast<ConstantSDNode>(CPTmp1)->getZExtValue();
2170 unsigned SOShOp = ARM_AM::getSORegShOp(SOVal);
2173 case ARM_AM::lsl: Opc = ARM::t2MOVCClsl; break;
2174 case ARM_AM::lsr: Opc = ARM::t2MOVCClsr; break;
2175 case ARM_AM::asr: Opc = ARM::t2MOVCCasr; break;
2176 case ARM_AM::ror: Opc = ARM::t2MOVCCror; break;
2178 llvm_unreachable("Unknown so_reg opcode!");
2182 CurDAG->getTargetConstant(ARM_AM::getSORegOffset(SOVal), MVT::i32);
2183 SDValue CC = CurDAG->getTargetConstant(CCVal, MVT::i32);
2184 SDValue Ops[] = { FalseVal, CPTmp0, SOShImm, CC, CCR, InFlag };
2185 return CurDAG->SelectNodeTo(N, Opc, MVT::i32,Ops, 6);
2190 SDNode *ARMDAGToDAGISel::
2191 SelectARMCMOVShiftOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
2192 ARMCC::CondCodes CCVal, SDValue CCR, SDValue InFlag) {
2196 if (SelectImmShifterOperand(TrueVal, CPTmp0, CPTmp2)) {
2197 SDValue CC = CurDAG->getTargetConstant(CCVal, MVT::i32);
2198 SDValue Ops[] = { FalseVal, CPTmp0, CPTmp2, CC, CCR, InFlag };
2199 return CurDAG->SelectNodeTo(N, ARM::MOVCCsi, MVT::i32, Ops, 6);
2202 if (SelectRegShifterOperand(TrueVal, CPTmp0, CPTmp1, CPTmp2)) {
2203 SDValue CC = CurDAG->getTargetConstant(CCVal, MVT::i32);
2204 SDValue Ops[] = { FalseVal, CPTmp0, CPTmp1, CPTmp2, CC, CCR, InFlag };
2205 return CurDAG->SelectNodeTo(N, ARM::MOVCCsr, MVT::i32, Ops, 7);
2210 SDNode *ARMDAGToDAGISel::
2211 SelectT2CMOVImmOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
2212 ARMCC::CondCodes CCVal, SDValue CCR, SDValue InFlag) {
2213 ConstantSDNode *T = dyn_cast<ConstantSDNode>(TrueVal);
2218 unsigned TrueImm = T->getZExtValue();
2219 if (is_t2_so_imm(TrueImm)) {
2220 Opc = ARM::t2MOVCCi;
2221 } else if (TrueImm <= 0xffff) {
2222 Opc = ARM::t2MOVCCi16;
2223 } else if (is_t2_so_imm_not(TrueImm)) {
2225 Opc = ARM::t2MVNCCi;
2226 } else if (TrueVal.getNode()->hasOneUse() && Subtarget->hasV6T2Ops()) {
2228 Opc = ARM::t2MOVCCi32imm;
2232 SDValue True = CurDAG->getTargetConstant(TrueImm, MVT::i32);
2233 SDValue CC = CurDAG->getTargetConstant(CCVal, MVT::i32);
2234 SDValue Ops[] = { FalseVal, True, CC, CCR, InFlag };
2235 return CurDAG->SelectNodeTo(N, Opc, MVT::i32, Ops, 5);
2241 SDNode *ARMDAGToDAGISel::
2242 SelectARMCMOVImmOp(SDNode *N, SDValue FalseVal, SDValue TrueVal,
2243 ARMCC::CondCodes CCVal, SDValue CCR, SDValue InFlag) {
2244 ConstantSDNode *T = dyn_cast<ConstantSDNode>(TrueVal);
2249 unsigned TrueImm = T->getZExtValue();
2250 bool isSoImm = is_so_imm(TrueImm);
2253 } else if (Subtarget->hasV6T2Ops() && TrueImm <= 0xffff) {
2254 Opc = ARM::MOVCCi16;
2255 } else if (is_so_imm_not(TrueImm)) {
2258 } else if (TrueVal.getNode()->hasOneUse() &&
2259 (Subtarget->hasV6T2Ops() || ARM_AM::isSOImmTwoPartVal(TrueImm))) {
2261 Opc = ARM::MOVCCi32imm;
2265 SDValue True = CurDAG->getTargetConstant(TrueImm, MVT::i32);
2266 SDValue CC = CurDAG->getTargetConstant(CCVal, MVT::i32);
2267 SDValue Ops[] = { FalseVal, True, CC, CCR, InFlag };
2268 return CurDAG->SelectNodeTo(N, Opc, MVT::i32, Ops, 5);
2274 SDNode *ARMDAGToDAGISel::SelectCMOVOp(SDNode *N) {
2275 EVT VT = N->getValueType(0);
2276 SDValue FalseVal = N->getOperand(0);
2277 SDValue TrueVal = N->getOperand(1);
2278 SDValue CC = N->getOperand(2);
2279 SDValue CCR = N->getOperand(3);
2280 SDValue InFlag = N->getOperand(4);
2281 assert(CC.getOpcode() == ISD::Constant);
2282 assert(CCR.getOpcode() == ISD::Register);
2283 ARMCC::CondCodes CCVal =
2284 (ARMCC::CondCodes)cast<ConstantSDNode>(CC)->getZExtValue();
2286 if (!Subtarget->isThumb1Only() && VT == MVT::i32) {
2287 // Pattern: (ARMcmov:i32 GPR:i32:$false, so_reg:i32:$true, (imm:i32):$cc)
2288 // Emits: (MOVCCs:i32 GPR:i32:$false, so_reg:i32:$true, (imm:i32):$cc)
2289 // Pattern complexity = 18 cost = 1 size = 0
2293 if (Subtarget->isThumb()) {
2294 SDNode *Res = SelectT2CMOVShiftOp(N, FalseVal, TrueVal,
2295 CCVal, CCR, InFlag);
2297 Res = SelectT2CMOVShiftOp(N, TrueVal, FalseVal,
2298 ARMCC::getOppositeCondition(CCVal), CCR, InFlag);
2302 SDNode *Res = SelectARMCMOVShiftOp(N, FalseVal, TrueVal,
2303 CCVal, CCR, InFlag);
2305 Res = SelectARMCMOVShiftOp(N, TrueVal, FalseVal,
2306 ARMCC::getOppositeCondition(CCVal), CCR, InFlag);
2311 // Pattern: (ARMcmov:i32 GPR:i32:$false,
2312 // (imm:i32)<<P:Pred_so_imm>>:$true,
2314 // Emits: (MOVCCi:i32 GPR:i32:$false,
2315 // (so_imm:i32 (imm:i32):$true), (imm:i32):$cc)
2316 // Pattern complexity = 10 cost = 1 size = 0
2317 if (Subtarget->isThumb()) {
2318 SDNode *Res = SelectT2CMOVImmOp(N, FalseVal, TrueVal,
2319 CCVal, CCR, InFlag);
2321 Res = SelectT2CMOVImmOp(N, TrueVal, FalseVal,
2322 ARMCC::getOppositeCondition(CCVal), CCR, InFlag);
2326 SDNode *Res = SelectARMCMOVImmOp(N, FalseVal, TrueVal,
2327 CCVal, CCR, InFlag);
2329 Res = SelectARMCMOVImmOp(N, TrueVal, FalseVal,
2330 ARMCC::getOppositeCondition(CCVal), CCR, InFlag);
2336 // Pattern: (ARMcmov:i32 GPR:i32:$false, GPR:i32:$true, (imm:i32):$cc)
2337 // Emits: (MOVCCr:i32 GPR:i32:$false, GPR:i32:$true, (imm:i32):$cc)
2338 // Pattern complexity = 6 cost = 1 size = 0
2340 // Pattern: (ARMcmov:i32 GPR:i32:$false, GPR:i32:$true, (imm:i32):$cc)
2341 // Emits: (tMOVCCr:i32 GPR:i32:$false, GPR:i32:$true, (imm:i32):$cc)
2342 // Pattern complexity = 6 cost = 11 size = 0
2344 // Also VMOVScc and VMOVDcc.
2345 SDValue Tmp2 = CurDAG->getTargetConstant(CCVal, MVT::i32);
2346 SDValue Ops[] = { FalseVal, TrueVal, Tmp2, CCR, InFlag };
2348 switch (VT.getSimpleVT().SimpleTy) {
2349 default: assert(false && "Illegal conditional move type!");
2352 Opc = Subtarget->isThumb()
2353 ? (Subtarget->hasThumb2() ? ARM::t2MOVCCr : ARM::tMOVCCr_pseudo)
2363 return CurDAG->SelectNodeTo(N, Opc, VT, Ops, 5);
2366 /// Target-specific DAG combining for ISD::XOR.
2367 /// Target-independent combining lowers SELECT_CC nodes of the form
2368 /// select_cc setg[ge] X, 0, X, -X
2369 /// select_cc setgt X, -1, X, -X
2370 /// select_cc setl[te] X, 0, -X, X
2371 /// select_cc setlt X, 1, -X, X
2372 /// which represent Integer ABS into:
2373 /// Y = sra (X, size(X)-1); xor (add (X, Y), Y)
2374 /// ARM instruction selection detects the latter and matches it to
2375 /// ARM::ABS or ARM::t2ABS machine node.
2376 SDNode *ARMDAGToDAGISel::SelectABSOp(SDNode *N){
2377 SDValue XORSrc0 = N->getOperand(0);
2378 SDValue XORSrc1 = N->getOperand(1);
2379 EVT VT = N->getValueType(0);
2381 if (DisableARMIntABS)
2384 if (Subtarget->isThumb1Only())
2387 if (XORSrc0.getOpcode() != ISD::ADD ||
2388 XORSrc1.getOpcode() != ISD::SRA)
2391 SDValue ADDSrc0 = XORSrc0.getOperand(0);
2392 SDValue ADDSrc1 = XORSrc0.getOperand(1);
2393 SDValue SRASrc0 = XORSrc1.getOperand(0);
2394 SDValue SRASrc1 = XORSrc1.getOperand(1);
2395 ConstantSDNode *SRAConstant = dyn_cast<ConstantSDNode>(SRASrc1);
2396 EVT XType = SRASrc0.getValueType();
2397 unsigned Size = XType.getSizeInBits() - 1;
2399 if (ADDSrc1 == XORSrc1 &&
2400 ADDSrc0 == SRASrc0 &&
2401 XType.isInteger() &&
2402 SRAConstant != NULL &&
2403 Size == SRAConstant->getZExtValue()) {
2405 unsigned Opcode = ARM::ABS;
2406 if (Subtarget->isThumb2())
2407 Opcode = ARM::t2ABS;
2409 return CurDAG->SelectNodeTo(N, Opcode, VT, ADDSrc0);
2415 SDNode *ARMDAGToDAGISel::SelectConcatVector(SDNode *N) {
2416 // The only time a CONCAT_VECTORS operation can have legal types is when
2417 // two 64-bit vectors are concatenated to a 128-bit vector.
2418 EVT VT = N->getValueType(0);
2419 if (!VT.is128BitVector() || N->getNumOperands() != 2)
2420 llvm_unreachable("unexpected CONCAT_VECTORS");
2421 return PairDRegs(VT, N->getOperand(0), N->getOperand(1));
2424 SDNode *ARMDAGToDAGISel::SelectAtomic64(SDNode *Node, unsigned Opc) {
2425 SmallVector<SDValue, 6> Ops;
2426 Ops.push_back(Node->getOperand(1)); // Ptr
2427 Ops.push_back(Node->getOperand(2)); // Low part of Val1
2428 Ops.push_back(Node->getOperand(3)); // High part of Val1
2429 if (Opc == ARM::ATOMCMPXCHG6432) {
2430 Ops.push_back(Node->getOperand(4)); // Low part of Val2
2431 Ops.push_back(Node->getOperand(5)); // High part of Val2
2433 Ops.push_back(Node->getOperand(0)); // Chain
2434 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
2435 MemOp[0] = cast<MemSDNode>(Node)->getMemOperand();
2436 SDNode *ResNode = CurDAG->getMachineNode(Opc, Node->getDebugLoc(),
2437 MVT::i32, MVT::i32, MVT::Other,
2438 Ops.data() ,Ops.size());
2439 cast<MachineSDNode>(ResNode)->setMemRefs(MemOp, MemOp + 1);
2443 SDNode *ARMDAGToDAGISel::Select(SDNode *N) {
2444 DebugLoc dl = N->getDebugLoc();
2446 if (N->isMachineOpcode())
2447 return NULL; // Already selected.
2449 switch (N->getOpcode()) {
2452 // Select special operations if XOR node forms integer ABS pattern
2453 SDNode *ResNode = SelectABSOp(N);
2456 // Other cases are autogenerated.
2459 case ISD::Constant: {
2460 unsigned Val = cast<ConstantSDNode>(N)->getZExtValue();
2462 if (Subtarget->hasThumb2())
2463 // Thumb2-aware targets have the MOVT instruction, so all immediates can
2464 // be done with MOV + MOVT, at worst.
2467 if (Subtarget->isThumb()) {
2468 UseCP = (Val > 255 && // MOV
2469 ~Val > 255 && // MOV + MVN
2470 !ARM_AM::isThumbImmShiftedVal(Val)); // MOV + LSL
2472 UseCP = (ARM_AM::getSOImmVal(Val) == -1 && // MOV
2473 ARM_AM::getSOImmVal(~Val) == -1 && // MVN
2474 !ARM_AM::isSOImmTwoPartVal(Val)); // two instrs.
2479 CurDAG->getTargetConstantPool(ConstantInt::get(
2480 Type::getInt32Ty(*CurDAG->getContext()), Val),
2481 TLI.getPointerTy());
2484 if (Subtarget->isThumb1Only()) {
2485 SDValue Pred = getAL(CurDAG);
2486 SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
2487 SDValue Ops[] = { CPIdx, Pred, PredReg, CurDAG->getEntryNode() };
2488 ResNode = CurDAG->getMachineNode(ARM::tLDRpci, dl, MVT::i32, MVT::Other,
2493 CurDAG->getTargetConstant(0, MVT::i32),
2495 CurDAG->getRegister(0, MVT::i32),
2496 CurDAG->getEntryNode()
2498 ResNode=CurDAG->getMachineNode(ARM::LDRcp, dl, MVT::i32, MVT::Other,
2501 ReplaceUses(SDValue(N, 0), SDValue(ResNode, 0));
2505 // Other cases are autogenerated.
2508 case ISD::FrameIndex: {
2509 // Selects to ADDri FI, 0 which in turn will become ADDri SP, imm.
2510 int FI = cast<FrameIndexSDNode>(N)->getIndex();
2511 SDValue TFI = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
2512 if (Subtarget->isThumb1Only()) {
2513 SDValue Ops[] = { TFI, CurDAG->getTargetConstant(0, MVT::i32),
2514 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32) };
2515 return CurDAG->SelectNodeTo(N, ARM::tADDrSPi, MVT::i32, Ops, 4);
2517 unsigned Opc = ((Subtarget->isThumb() && Subtarget->hasThumb2()) ?
2518 ARM::t2ADDri : ARM::ADDri);
2519 SDValue Ops[] = { TFI, CurDAG->getTargetConstant(0, MVT::i32),
2520 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32),
2521 CurDAG->getRegister(0, MVT::i32) };
2522 return CurDAG->SelectNodeTo(N, Opc, MVT::i32, Ops, 5);
2526 if (SDNode *I = SelectV6T2BitfieldExtractOp(N, false))
2530 if (SDNode *I = SelectV6T2BitfieldExtractOp(N, true))
2534 if (Subtarget->isThumb1Only())
2536 if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N->getOperand(1))) {
2537 unsigned RHSV = C->getZExtValue();
2539 if (isPowerOf2_32(RHSV-1)) { // 2^n+1?
2540 unsigned ShImm = Log2_32(RHSV-1);
2543 SDValue V = N->getOperand(0);
2544 ShImm = ARM_AM::getSORegOpc(ARM_AM::lsl, ShImm);
2545 SDValue ShImmOp = CurDAG->getTargetConstant(ShImm, MVT::i32);
2546 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
2547 if (Subtarget->isThumb()) {
2548 SDValue Ops[] = { V, V, ShImmOp, getAL(CurDAG), Reg0, Reg0 };
2549 return CurDAG->SelectNodeTo(N, ARM::t2ADDrs, MVT::i32, Ops, 6);
2551 SDValue Ops[] = { V, V, Reg0, ShImmOp, getAL(CurDAG), Reg0, Reg0 };
2552 return CurDAG->SelectNodeTo(N, ARM::ADDrsi, MVT::i32, Ops, 7);
2555 if (isPowerOf2_32(RHSV+1)) { // 2^n-1?
2556 unsigned ShImm = Log2_32(RHSV+1);
2559 SDValue V = N->getOperand(0);
2560 ShImm = ARM_AM::getSORegOpc(ARM_AM::lsl, ShImm);
2561 SDValue ShImmOp = CurDAG->getTargetConstant(ShImm, MVT::i32);
2562 SDValue Reg0 = CurDAG->getRegister(0, MVT::i32);
2563 if (Subtarget->isThumb()) {
2564 SDValue Ops[] = { V, V, ShImmOp, getAL(CurDAG), Reg0, Reg0 };
2565 return CurDAG->SelectNodeTo(N, ARM::t2RSBrs, MVT::i32, Ops, 6);
2567 SDValue Ops[] = { V, V, Reg0, ShImmOp, getAL(CurDAG), Reg0, Reg0 };
2568 return CurDAG->SelectNodeTo(N, ARM::RSBrsi, MVT::i32, Ops, 7);
2574 // Check for unsigned bitfield extract
2575 if (SDNode *I = SelectV6T2BitfieldExtractOp(N, false))
2578 // (and (or x, c2), c1) and top 16-bits of c1 and c2 match, lower 16-bits
2579 // of c1 are 0xffff, and lower 16-bit of c2 are 0. That is, the top 16-bits
2580 // are entirely contributed by c2 and lower 16-bits are entirely contributed
2581 // by x. That's equal to (or (and x, 0xffff), (and c1, 0xffff0000)).
2582 // Select it to: "movt x, ((c1 & 0xffff) >> 16)
2583 EVT VT = N->getValueType(0);
2586 unsigned Opc = (Subtarget->isThumb() && Subtarget->hasThumb2())
2588 : (Subtarget->hasV6T2Ops() ? ARM::MOVTi16 : 0);
2591 SDValue N0 = N->getOperand(0), N1 = N->getOperand(1);
2592 ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1);
2595 if (N0.getOpcode() == ISD::OR && N0.getNode()->hasOneUse()) {
2596 SDValue N2 = N0.getOperand(1);
2597 ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2);
2600 unsigned N1CVal = N1C->getZExtValue();
2601 unsigned N2CVal = N2C->getZExtValue();
2602 if ((N1CVal & 0xffff0000U) == (N2CVal & 0xffff0000U) &&
2603 (N1CVal & 0xffffU) == 0xffffU &&
2604 (N2CVal & 0xffffU) == 0x0U) {
2605 SDValue Imm16 = CurDAG->getTargetConstant((N2CVal & 0xFFFF0000U) >> 16,
2607 SDValue Ops[] = { N0.getOperand(0), Imm16,
2608 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32) };
2609 return CurDAG->getMachineNode(Opc, dl, VT, Ops, 4);
2614 case ARMISD::VMOVRRD:
2615 return CurDAG->getMachineNode(ARM::VMOVRRD, dl, MVT::i32, MVT::i32,
2616 N->getOperand(0), getAL(CurDAG),
2617 CurDAG->getRegister(0, MVT::i32));
2618 case ISD::UMUL_LOHI: {
2619 if (Subtarget->isThumb1Only())
2621 if (Subtarget->isThumb()) {
2622 SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
2623 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32),
2624 CurDAG->getRegister(0, MVT::i32) };
2625 return CurDAG->getMachineNode(ARM::t2UMULL, dl, MVT::i32, MVT::i32,Ops,4);
2627 SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
2628 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32),
2629 CurDAG->getRegister(0, MVT::i32) };
2630 return CurDAG->getMachineNode(Subtarget->hasV6Ops() ?
2631 ARM::UMULL : ARM::UMULLv5,
2632 dl, MVT::i32, MVT::i32, Ops, 5);
2635 case ISD::SMUL_LOHI: {
2636 if (Subtarget->isThumb1Only())
2638 if (Subtarget->isThumb()) {
2639 SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
2640 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32) };
2641 return CurDAG->getMachineNode(ARM::t2SMULL, dl, MVT::i32, MVT::i32,Ops,4);
2643 SDValue Ops[] = { N->getOperand(0), N->getOperand(1),
2644 getAL(CurDAG), CurDAG->getRegister(0, MVT::i32),
2645 CurDAG->getRegister(0, MVT::i32) };
2646 return CurDAG->getMachineNode(Subtarget->hasV6Ops() ?
2647 ARM::SMULL : ARM::SMULLv5,
2648 dl, MVT::i32, MVT::i32, Ops, 5);
2652 SDNode *ResNode = 0;
2653 if (Subtarget->isThumb() && Subtarget->hasThumb2())
2654 ResNode = SelectT2IndexedLoad(N);
2656 ResNode = SelectARMIndexedLoad(N);
2659 // Other cases are autogenerated.
2662 case ARMISD::BRCOND: {
2663 // Pattern: (ARMbrcond:void (bb:Other):$dst, (imm:i32):$cc)
2664 // Emits: (Bcc:void (bb:Other):$dst, (imm:i32):$cc)
2665 // Pattern complexity = 6 cost = 1 size = 0
2667 // Pattern: (ARMbrcond:void (bb:Other):$dst, (imm:i32):$cc)
2668 // Emits: (tBcc:void (bb:Other):$dst, (imm:i32):$cc)
2669 // Pattern complexity = 6 cost = 1 size = 0
2671 // Pattern: (ARMbrcond:void (bb:Other):$dst, (imm:i32):$cc)
2672 // Emits: (t2Bcc:void (bb:Other):$dst, (imm:i32):$cc)
2673 // Pattern complexity = 6 cost = 1 size = 0
2675 unsigned Opc = Subtarget->isThumb() ?
2676 ((Subtarget->hasThumb2()) ? ARM::t2Bcc : ARM::tBcc) : ARM::Bcc;
2677 SDValue Chain = N->getOperand(0);
2678 SDValue N1 = N->getOperand(1);
2679 SDValue N2 = N->getOperand(2);
2680 SDValue N3 = N->getOperand(3);
2681 SDValue InFlag = N->getOperand(4);
2682 assert(N1.getOpcode() == ISD::BasicBlock);
2683 assert(N2.getOpcode() == ISD::Constant);
2684 assert(N3.getOpcode() == ISD::Register);
2686 SDValue Tmp2 = CurDAG->getTargetConstant(((unsigned)
2687 cast<ConstantSDNode>(N2)->getZExtValue()),
2689 SDValue Ops[] = { N1, Tmp2, N3, Chain, InFlag };
2690 SDNode *ResNode = CurDAG->getMachineNode(Opc, dl, MVT::Other,
2692 Chain = SDValue(ResNode, 0);
2693 if (N->getNumValues() == 2) {
2694 InFlag = SDValue(ResNode, 1);
2695 ReplaceUses(SDValue(N, 1), InFlag);
2697 ReplaceUses(SDValue(N, 0),
2698 SDValue(Chain.getNode(), Chain.getResNo()));
2702 return SelectCMOVOp(N);
2703 case ARMISD::VZIP: {
2705 EVT VT = N->getValueType(0);
2706 switch (VT.getSimpleVT().SimpleTy) {
2707 default: return NULL;
2708 case MVT::v8i8: Opc = ARM::VZIPd8; break;
2709 case MVT::v4i16: Opc = ARM::VZIPd16; break;
2711 case MVT::v2i32: Opc = ARM::VZIPd32; break;
2712 case MVT::v16i8: Opc = ARM::VZIPq8; break;
2713 case MVT::v8i16: Opc = ARM::VZIPq16; break;
2715 case MVT::v4i32: Opc = ARM::VZIPq32; break;
2717 SDValue Pred = getAL(CurDAG);
2718 SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
2719 SDValue Ops[] = { N->getOperand(0), N->getOperand(1), Pred, PredReg };
2720 return CurDAG->getMachineNode(Opc, dl, VT, VT, Ops, 4);
2722 case ARMISD::VUZP: {
2724 EVT VT = N->getValueType(0);
2725 switch (VT.getSimpleVT().SimpleTy) {
2726 default: return NULL;
2727 case MVT::v8i8: Opc = ARM::VUZPd8; break;
2728 case MVT::v4i16: Opc = ARM::VUZPd16; break;
2730 case MVT::v2i32: Opc = ARM::VUZPd32; break;
2731 case MVT::v16i8: Opc = ARM::VUZPq8; break;
2732 case MVT::v8i16: Opc = ARM::VUZPq16; break;
2734 case MVT::v4i32: Opc = ARM::VUZPq32; break;
2736 SDValue Pred = getAL(CurDAG);
2737 SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
2738 SDValue Ops[] = { N->getOperand(0), N->getOperand(1), Pred, PredReg };
2739 return CurDAG->getMachineNode(Opc, dl, VT, VT, Ops, 4);
2741 case ARMISD::VTRN: {
2743 EVT VT = N->getValueType(0);
2744 switch (VT.getSimpleVT().SimpleTy) {
2745 default: return NULL;
2746 case MVT::v8i8: Opc = ARM::VTRNd8; break;
2747 case MVT::v4i16: Opc = ARM::VTRNd16; break;
2749 case MVT::v2i32: Opc = ARM::VTRNd32; break;
2750 case MVT::v16i8: Opc = ARM::VTRNq8; break;
2751 case MVT::v8i16: Opc = ARM::VTRNq16; break;
2753 case MVT::v4i32: Opc = ARM::VTRNq32; break;
2755 SDValue Pred = getAL(CurDAG);
2756 SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
2757 SDValue Ops[] = { N->getOperand(0), N->getOperand(1), Pred, PredReg };
2758 return CurDAG->getMachineNode(Opc, dl, VT, VT, Ops, 4);
2760 case ARMISD::BUILD_VECTOR: {
2761 EVT VecVT = N->getValueType(0);
2762 EVT EltVT = VecVT.getVectorElementType();
2763 unsigned NumElts = VecVT.getVectorNumElements();
2764 if (EltVT == MVT::f64) {
2765 assert(NumElts == 2 && "unexpected type for BUILD_VECTOR");
2766 return PairDRegs(VecVT, N->getOperand(0), N->getOperand(1));
2768 assert(EltVT == MVT::f32 && "unexpected type for BUILD_VECTOR");
2770 return PairSRegs(VecVT, N->getOperand(0), N->getOperand(1));
2771 assert(NumElts == 4 && "unexpected type for BUILD_VECTOR");
2772 return QuadSRegs(VecVT, N->getOperand(0), N->getOperand(1),
2773 N->getOperand(2), N->getOperand(3));
2776 case ARMISD::VLD2DUP: {
2777 unsigned Opcodes[] = { ARM::VLD2DUPd8Pseudo, ARM::VLD2DUPd16Pseudo,
2778 ARM::VLD2DUPd32Pseudo };
2779 return SelectVLDDup(N, false, 2, Opcodes);
2782 case ARMISD::VLD3DUP: {
2783 unsigned Opcodes[] = { ARM::VLD3DUPd8Pseudo, ARM::VLD3DUPd16Pseudo,
2784 ARM::VLD3DUPd32Pseudo };
2785 return SelectVLDDup(N, false, 3, Opcodes);
2788 case ARMISD::VLD4DUP: {
2789 unsigned Opcodes[] = { ARM::VLD4DUPd8Pseudo, ARM::VLD4DUPd16Pseudo,
2790 ARM::VLD4DUPd32Pseudo };
2791 return SelectVLDDup(N, false, 4, Opcodes);
2794 case ARMISD::VLD2DUP_UPD: {
2795 unsigned Opcodes[] = { ARM::VLD2DUPd8Pseudo_UPD, ARM::VLD2DUPd16Pseudo_UPD,
2796 ARM::VLD2DUPd32Pseudo_UPD };
2797 return SelectVLDDup(N, true, 2, Opcodes);
2800 case ARMISD::VLD3DUP_UPD: {
2801 unsigned Opcodes[] = { ARM::VLD3DUPd8Pseudo_UPD, ARM::VLD3DUPd16Pseudo_UPD,
2802 ARM::VLD3DUPd32Pseudo_UPD };
2803 return SelectVLDDup(N, true, 3, Opcodes);
2806 case ARMISD::VLD4DUP_UPD: {
2807 unsigned Opcodes[] = { ARM::VLD4DUPd8Pseudo_UPD, ARM::VLD4DUPd16Pseudo_UPD,
2808 ARM::VLD4DUPd32Pseudo_UPD };
2809 return SelectVLDDup(N, true, 4, Opcodes);
2812 case ARMISD::VLD1_UPD: {
2813 unsigned DOpcodes[] = { ARM::VLD1d8wb_fixed, ARM::VLD1d16wb_fixed,
2814 ARM::VLD1d32wb_fixed, ARM::VLD1d64wb_fixed };
2815 unsigned QOpcodes[] = { ARM::VLD1q8PseudoWB_fixed,
2816 ARM::VLD1q16PseudoWB_fixed,
2817 ARM::VLD1q32PseudoWB_fixed,
2818 ARM::VLD1q64PseudoWB_fixed };
2819 return SelectVLD(N, true, 1, DOpcodes, QOpcodes, 0);
2822 case ARMISD::VLD2_UPD: {
2823 unsigned DOpcodes[] = { ARM::VLD2d8PseudoWB_fixed,
2824 ARM::VLD2d16PseudoWB_fixed,
2825 ARM::VLD2d32PseudoWB_fixed,
2826 ARM::VLD1q64PseudoWB_fixed};
2827 unsigned QOpcodes[] = { ARM::VLD2q8PseudoWB_fixed,
2828 ARM::VLD2q16PseudoWB_fixed,
2829 ARM::VLD2q32PseudoWB_fixed };
2830 return SelectVLD(N, true, 2, DOpcodes, QOpcodes, 0);
2833 case ARMISD::VLD3_UPD: {
2834 unsigned DOpcodes[] = { ARM::VLD3d8Pseudo_UPD, ARM::VLD3d16Pseudo_UPD,
2835 ARM::VLD3d32Pseudo_UPD, ARM::VLD1q64PseudoWB_fixed};
2836 unsigned QOpcodes0[] = { ARM::VLD3q8Pseudo_UPD,
2837 ARM::VLD3q16Pseudo_UPD,
2838 ARM::VLD3q32Pseudo_UPD };
2839 unsigned QOpcodes1[] = { ARM::VLD3q8oddPseudo_UPD,
2840 ARM::VLD3q16oddPseudo_UPD,
2841 ARM::VLD3q32oddPseudo_UPD };
2842 return SelectVLD(N, true, 3, DOpcodes, QOpcodes0, QOpcodes1);
2845 case ARMISD::VLD4_UPD: {
2846 unsigned DOpcodes[] = { ARM::VLD4d8Pseudo_UPD, ARM::VLD4d16Pseudo_UPD,
2847 ARM::VLD4d32Pseudo_UPD, ARM::VLD1q64PseudoWB_fixed};
2848 unsigned QOpcodes0[] = { ARM::VLD4q8Pseudo_UPD,
2849 ARM::VLD4q16Pseudo_UPD,
2850 ARM::VLD4q32Pseudo_UPD };
2851 unsigned QOpcodes1[] = { ARM::VLD4q8oddPseudo_UPD,
2852 ARM::VLD4q16oddPseudo_UPD,
2853 ARM::VLD4q32oddPseudo_UPD };
2854 return SelectVLD(N, true, 4, DOpcodes, QOpcodes0, QOpcodes1);
2857 case ARMISD::VLD2LN_UPD: {
2858 unsigned DOpcodes[] = { ARM::VLD2LNd8Pseudo_UPD, ARM::VLD2LNd16Pseudo_UPD,
2859 ARM::VLD2LNd32Pseudo_UPD };
2860 unsigned QOpcodes[] = { ARM::VLD2LNq16Pseudo_UPD,
2861 ARM::VLD2LNq32Pseudo_UPD };
2862 return SelectVLDSTLane(N, true, true, 2, DOpcodes, QOpcodes);
2865 case ARMISD::VLD3LN_UPD: {
2866 unsigned DOpcodes[] = { ARM::VLD3LNd8Pseudo_UPD, ARM::VLD3LNd16Pseudo_UPD,
2867 ARM::VLD3LNd32Pseudo_UPD };
2868 unsigned QOpcodes[] = { ARM::VLD3LNq16Pseudo_UPD,
2869 ARM::VLD3LNq32Pseudo_UPD };
2870 return SelectVLDSTLane(N, true, true, 3, DOpcodes, QOpcodes);
2873 case ARMISD::VLD4LN_UPD: {
2874 unsigned DOpcodes[] = { ARM::VLD4LNd8Pseudo_UPD, ARM::VLD4LNd16Pseudo_UPD,
2875 ARM::VLD4LNd32Pseudo_UPD };
2876 unsigned QOpcodes[] = { ARM::VLD4LNq16Pseudo_UPD,
2877 ARM::VLD4LNq32Pseudo_UPD };
2878 return SelectVLDSTLane(N, true, true, 4, DOpcodes, QOpcodes);
2881 case ARMISD::VST1_UPD: {
2882 unsigned DOpcodes[] = { ARM::VST1d8wb_fixed, ARM::VST1d16wb_fixed,
2883 ARM::VST1d32wb_fixed, ARM::VST1d64wb_fixed };
2884 unsigned QOpcodes[] = { ARM::VST1q8PseudoWB_fixed,
2885 ARM::VST1q16PseudoWB_fixed,
2886 ARM::VST1q32PseudoWB_fixed,
2887 ARM::VST1q64PseudoWB_fixed };
2888 return SelectVST(N, true, 1, DOpcodes, QOpcodes, 0);
2891 case ARMISD::VST2_UPD: {
2892 unsigned DOpcodes[] = { ARM::VST2d8Pseudo_UPD, ARM::VST2d16Pseudo_UPD,
2893 ARM::VST2d32Pseudo_UPD, ARM::VST1q64PseudoWB_fixed};
2894 unsigned QOpcodes[] = { ARM::VST2q8Pseudo_UPD, ARM::VST2q16Pseudo_UPD,
2895 ARM::VST2q32Pseudo_UPD };
2896 return SelectVST(N, true, 2, DOpcodes, QOpcodes, 0);
2899 case ARMISD::VST3_UPD: {
2900 unsigned DOpcodes[] = { ARM::VST3d8Pseudo_UPD, ARM::VST3d16Pseudo_UPD,
2901 ARM::VST3d32Pseudo_UPD,ARM::VST1d64TPseudoWB_fixed};
2902 unsigned QOpcodes0[] = { ARM::VST3q8Pseudo_UPD,
2903 ARM::VST3q16Pseudo_UPD,
2904 ARM::VST3q32Pseudo_UPD };
2905 unsigned QOpcodes1[] = { ARM::VST3q8oddPseudo_UPD,
2906 ARM::VST3q16oddPseudo_UPD,
2907 ARM::VST3q32oddPseudo_UPD };
2908 return SelectVST(N, true, 3, DOpcodes, QOpcodes0, QOpcodes1);
2911 case ARMISD::VST4_UPD: {
2912 unsigned DOpcodes[] = { ARM::VST4d8Pseudo_UPD, ARM::VST4d16Pseudo_UPD,
2913 ARM::VST4d32Pseudo_UPD,ARM::VST1d64QPseudoWB_fixed};
2914 unsigned QOpcodes0[] = { ARM::VST4q8Pseudo_UPD,
2915 ARM::VST4q16Pseudo_UPD,
2916 ARM::VST4q32Pseudo_UPD };
2917 unsigned QOpcodes1[] = { ARM::VST4q8oddPseudo_UPD,
2918 ARM::VST4q16oddPseudo_UPD,
2919 ARM::VST4q32oddPseudo_UPD };
2920 return SelectVST(N, true, 4, DOpcodes, QOpcodes0, QOpcodes1);
2923 case ARMISD::VST2LN_UPD: {
2924 unsigned DOpcodes[] = { ARM::VST2LNd8Pseudo_UPD, ARM::VST2LNd16Pseudo_UPD,
2925 ARM::VST2LNd32Pseudo_UPD };
2926 unsigned QOpcodes[] = { ARM::VST2LNq16Pseudo_UPD,
2927 ARM::VST2LNq32Pseudo_UPD };
2928 return SelectVLDSTLane(N, false, true, 2, DOpcodes, QOpcodes);
2931 case ARMISD::VST3LN_UPD: {
2932 unsigned DOpcodes[] = { ARM::VST3LNd8Pseudo_UPD, ARM::VST3LNd16Pseudo_UPD,
2933 ARM::VST3LNd32Pseudo_UPD };
2934 unsigned QOpcodes[] = { ARM::VST3LNq16Pseudo_UPD,
2935 ARM::VST3LNq32Pseudo_UPD };
2936 return SelectVLDSTLane(N, false, true, 3, DOpcodes, QOpcodes);
2939 case ARMISD::VST4LN_UPD: {
2940 unsigned DOpcodes[] = { ARM::VST4LNd8Pseudo_UPD, ARM::VST4LNd16Pseudo_UPD,
2941 ARM::VST4LNd32Pseudo_UPD };
2942 unsigned QOpcodes[] = { ARM::VST4LNq16Pseudo_UPD,
2943 ARM::VST4LNq32Pseudo_UPD };
2944 return SelectVLDSTLane(N, false, true, 4, DOpcodes, QOpcodes);
2947 case ISD::INTRINSIC_VOID:
2948 case ISD::INTRINSIC_W_CHAIN: {
2949 unsigned IntNo = cast<ConstantSDNode>(N->getOperand(1))->getZExtValue();
2954 case Intrinsic::arm_ldrexd: {
2955 SDValue MemAddr = N->getOperand(2);
2956 DebugLoc dl = N->getDebugLoc();
2957 SDValue Chain = N->getOperand(0);
2959 unsigned NewOpc = ARM::LDREXD;
2960 if (Subtarget->isThumb() && Subtarget->hasThumb2())
2961 NewOpc = ARM::t2LDREXD;
2963 // arm_ldrexd returns a i64 value in {i32, i32}
2964 std::vector<EVT> ResTys;
2965 ResTys.push_back(MVT::i32);
2966 ResTys.push_back(MVT::i32);
2967 ResTys.push_back(MVT::Other);
2969 // place arguments in the right order
2970 SmallVector<SDValue, 7> Ops;
2971 Ops.push_back(MemAddr);
2972 Ops.push_back(getAL(CurDAG));
2973 Ops.push_back(CurDAG->getRegister(0, MVT::i32));
2974 Ops.push_back(Chain);
2975 SDNode *Ld = CurDAG->getMachineNode(NewOpc, dl, ResTys, Ops.data(),
2977 // Transfer memoperands.
2978 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
2979 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
2980 cast<MachineSDNode>(Ld)->setMemRefs(MemOp, MemOp + 1);
2982 // Until there's support for specifing explicit register constraints
2983 // like the use of even/odd register pair, hardcode ldrexd to always
2984 // use the pair [R0, R1] to hold the load result.
2985 Chain = CurDAG->getCopyToReg(CurDAG->getEntryNode(), dl, ARM::R0,
2986 SDValue(Ld, 0), SDValue(0,0));
2987 Chain = CurDAG->getCopyToReg(Chain, dl, ARM::R1,
2988 SDValue(Ld, 1), Chain.getValue(1));
2991 SDValue Glue = Chain.getValue(1);
2992 if (!SDValue(N, 0).use_empty()) {
2993 SDValue Result = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
2994 ARM::R0, MVT::i32, Glue);
2995 Glue = Result.getValue(2);
2996 ReplaceUses(SDValue(N, 0), Result);
2998 if (!SDValue(N, 1).use_empty()) {
2999 SDValue Result = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
3000 ARM::R1, MVT::i32, Glue);
3001 Glue = Result.getValue(2);
3002 ReplaceUses(SDValue(N, 1), Result);
3005 ReplaceUses(SDValue(N, 2), SDValue(Ld, 2));
3009 case Intrinsic::arm_strexd: {
3010 DebugLoc dl = N->getDebugLoc();
3011 SDValue Chain = N->getOperand(0);
3012 SDValue Val0 = N->getOperand(2);
3013 SDValue Val1 = N->getOperand(3);
3014 SDValue MemAddr = N->getOperand(4);
3016 // Until there's support for specifing explicit register constraints
3017 // like the use of even/odd register pair, hardcode strexd to always
3018 // use the pair [R2, R3] to hold the i64 (i32, i32) value to be stored.
3019 Chain = CurDAG->getCopyToReg(CurDAG->getEntryNode(), dl, ARM::R2, Val0,
3021 Chain = CurDAG->getCopyToReg(Chain, dl, ARM::R3, Val1, Chain.getValue(1));
3023 SDValue Glue = Chain.getValue(1);
3024 Val0 = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
3025 ARM::R2, MVT::i32, Glue);
3026 Glue = Val0.getValue(1);
3027 Val1 = CurDAG->getCopyFromReg(CurDAG->getEntryNode(), dl,
3028 ARM::R3, MVT::i32, Glue);
3030 // Store exclusive double return a i32 value which is the return status
3031 // of the issued store.
3032 std::vector<EVT> ResTys;
3033 ResTys.push_back(MVT::i32);
3034 ResTys.push_back(MVT::Other);
3036 // place arguments in the right order
3037 SmallVector<SDValue, 7> Ops;
3038 Ops.push_back(Val0);
3039 Ops.push_back(Val1);
3040 Ops.push_back(MemAddr);
3041 Ops.push_back(getAL(CurDAG));
3042 Ops.push_back(CurDAG->getRegister(0, MVT::i32));
3043 Ops.push_back(Chain);
3045 unsigned NewOpc = ARM::STREXD;
3046 if (Subtarget->isThumb() && Subtarget->hasThumb2())
3047 NewOpc = ARM::t2STREXD;
3049 SDNode *St = CurDAG->getMachineNode(NewOpc, dl, ResTys, Ops.data(),
3051 // Transfer memoperands.
3052 MachineSDNode::mmo_iterator MemOp = MF->allocateMemRefsArray(1);
3053 MemOp[0] = cast<MemIntrinsicSDNode>(N)->getMemOperand();
3054 cast<MachineSDNode>(St)->setMemRefs(MemOp, MemOp + 1);
3059 case Intrinsic::arm_neon_vld1: {
3060 unsigned DOpcodes[] = { ARM::VLD1d8, ARM::VLD1d16,
3061 ARM::VLD1d32, ARM::VLD1d64 };
3062 unsigned QOpcodes[] = { ARM::VLD1q8Pseudo, ARM::VLD1q16Pseudo,
3063 ARM::VLD1q32Pseudo, ARM::VLD1q64Pseudo };
3064 return SelectVLD(N, false, 1, DOpcodes, QOpcodes, 0);
3067 case Intrinsic::arm_neon_vld2: {
3068 unsigned DOpcodes[] = { ARM::VLD2d8Pseudo, ARM::VLD2d16Pseudo,
3069 ARM::VLD2d32Pseudo, ARM::VLD1q64Pseudo };
3070 unsigned QOpcodes[] = { ARM::VLD2q8Pseudo, ARM::VLD2q16Pseudo,
3071 ARM::VLD2q32Pseudo };
3072 return SelectVLD(N, false, 2, DOpcodes, QOpcodes, 0);
3075 case Intrinsic::arm_neon_vld3: {
3076 unsigned DOpcodes[] = { ARM::VLD3d8Pseudo, ARM::VLD3d16Pseudo,
3077 ARM::VLD3d32Pseudo, ARM::VLD1d64TPseudo };
3078 unsigned QOpcodes0[] = { ARM::VLD3q8Pseudo_UPD,
3079 ARM::VLD3q16Pseudo_UPD,
3080 ARM::VLD3q32Pseudo_UPD };
3081 unsigned QOpcodes1[] = { ARM::VLD3q8oddPseudo,
3082 ARM::VLD3q16oddPseudo,
3083 ARM::VLD3q32oddPseudo };
3084 return SelectVLD(N, false, 3, DOpcodes, QOpcodes0, QOpcodes1);
3087 case Intrinsic::arm_neon_vld4: {
3088 unsigned DOpcodes[] = { ARM::VLD4d8Pseudo, ARM::VLD4d16Pseudo,
3089 ARM::VLD4d32Pseudo, ARM::VLD1d64QPseudo };
3090 unsigned QOpcodes0[] = { ARM::VLD4q8Pseudo_UPD,
3091 ARM::VLD4q16Pseudo_UPD,
3092 ARM::VLD4q32Pseudo_UPD };
3093 unsigned QOpcodes1[] = { ARM::VLD4q8oddPseudo,
3094 ARM::VLD4q16oddPseudo,
3095 ARM::VLD4q32oddPseudo };
3096 return SelectVLD(N, false, 4, DOpcodes, QOpcodes0, QOpcodes1);
3099 case Intrinsic::arm_neon_vld2lane: {
3100 unsigned DOpcodes[] = { ARM::VLD2LNd8Pseudo, ARM::VLD2LNd16Pseudo,
3101 ARM::VLD2LNd32Pseudo };
3102 unsigned QOpcodes[] = { ARM::VLD2LNq16Pseudo, ARM::VLD2LNq32Pseudo };
3103 return SelectVLDSTLane(N, true, false, 2, DOpcodes, QOpcodes);
3106 case Intrinsic::arm_neon_vld3lane: {
3107 unsigned DOpcodes[] = { ARM::VLD3LNd8Pseudo, ARM::VLD3LNd16Pseudo,
3108 ARM::VLD3LNd32Pseudo };
3109 unsigned QOpcodes[] = { ARM::VLD3LNq16Pseudo, ARM::VLD3LNq32Pseudo };
3110 return SelectVLDSTLane(N, true, false, 3, DOpcodes, QOpcodes);
3113 case Intrinsic::arm_neon_vld4lane: {
3114 unsigned DOpcodes[] = { ARM::VLD4LNd8Pseudo, ARM::VLD4LNd16Pseudo,
3115 ARM::VLD4LNd32Pseudo };
3116 unsigned QOpcodes[] = { ARM::VLD4LNq16Pseudo, ARM::VLD4LNq32Pseudo };
3117 return SelectVLDSTLane(N, true, false, 4, DOpcodes, QOpcodes);
3120 case Intrinsic::arm_neon_vst1: {
3121 unsigned DOpcodes[] = { ARM::VST1d8, ARM::VST1d16,
3122 ARM::VST1d32, ARM::VST1d64 };
3123 unsigned QOpcodes[] = { ARM::VST1q8Pseudo, ARM::VST1q16Pseudo,
3124 ARM::VST1q32Pseudo, ARM::VST1q64Pseudo };
3125 return SelectVST(N, false, 1, DOpcodes, QOpcodes, 0);
3128 case Intrinsic::arm_neon_vst2: {
3129 unsigned DOpcodes[] = { ARM::VST2d8Pseudo, ARM::VST2d16Pseudo,
3130 ARM::VST2d32Pseudo, ARM::VST1q64Pseudo };
3131 unsigned QOpcodes[] = { ARM::VST2q8Pseudo, ARM::VST2q16Pseudo,
3132 ARM::VST2q32Pseudo };
3133 return SelectVST(N, false, 2, DOpcodes, QOpcodes, 0);
3136 case Intrinsic::arm_neon_vst3: {
3137 unsigned DOpcodes[] = { ARM::VST3d8Pseudo, ARM::VST3d16Pseudo,
3138 ARM::VST3d32Pseudo, ARM::VST1d64TPseudo };
3139 unsigned QOpcodes0[] = { ARM::VST3q8Pseudo_UPD,
3140 ARM::VST3q16Pseudo_UPD,
3141 ARM::VST3q32Pseudo_UPD };
3142 unsigned QOpcodes1[] = { ARM::VST3q8oddPseudo,
3143 ARM::VST3q16oddPseudo,
3144 ARM::VST3q32oddPseudo };
3145 return SelectVST(N, false, 3, DOpcodes, QOpcodes0, QOpcodes1);
3148 case Intrinsic::arm_neon_vst4: {
3149 unsigned DOpcodes[] = { ARM::VST4d8Pseudo, ARM::VST4d16Pseudo,
3150 ARM::VST4d32Pseudo, ARM::VST1d64QPseudo };
3151 unsigned QOpcodes0[] = { ARM::VST4q8Pseudo_UPD,
3152 ARM::VST4q16Pseudo_UPD,
3153 ARM::VST4q32Pseudo_UPD };
3154 unsigned QOpcodes1[] = { ARM::VST4q8oddPseudo,
3155 ARM::VST4q16oddPseudo,
3156 ARM::VST4q32oddPseudo };
3157 return SelectVST(N, false, 4, DOpcodes, QOpcodes0, QOpcodes1);
3160 case Intrinsic::arm_neon_vst2lane: {
3161 unsigned DOpcodes[] = { ARM::VST2LNd8Pseudo, ARM::VST2LNd16Pseudo,
3162 ARM::VST2LNd32Pseudo };
3163 unsigned QOpcodes[] = { ARM::VST2LNq16Pseudo, ARM::VST2LNq32Pseudo };
3164 return SelectVLDSTLane(N, false, false, 2, DOpcodes, QOpcodes);
3167 case Intrinsic::arm_neon_vst3lane: {
3168 unsigned DOpcodes[] = { ARM::VST3LNd8Pseudo, ARM::VST3LNd16Pseudo,
3169 ARM::VST3LNd32Pseudo };
3170 unsigned QOpcodes[] = { ARM::VST3LNq16Pseudo, ARM::VST3LNq32Pseudo };
3171 return SelectVLDSTLane(N, false, false, 3, DOpcodes, QOpcodes);
3174 case Intrinsic::arm_neon_vst4lane: {
3175 unsigned DOpcodes[] = { ARM::VST4LNd8Pseudo, ARM::VST4LNd16Pseudo,
3176 ARM::VST4LNd32Pseudo };
3177 unsigned QOpcodes[] = { ARM::VST4LNq16Pseudo, ARM::VST4LNq32Pseudo };
3178 return SelectVLDSTLane(N, false, false, 4, DOpcodes, QOpcodes);
3184 case ISD::INTRINSIC_WO_CHAIN: {
3185 unsigned IntNo = cast<ConstantSDNode>(N->getOperand(0))->getZExtValue();
3190 case Intrinsic::arm_neon_vtbl2:
3191 return SelectVTBL(N, false, 2, ARM::VTBL2Pseudo);
3192 case Intrinsic::arm_neon_vtbl3:
3193 return SelectVTBL(N, false, 3, ARM::VTBL3Pseudo);
3194 case Intrinsic::arm_neon_vtbl4:
3195 return SelectVTBL(N, false, 4, ARM::VTBL4Pseudo);
3197 case Intrinsic::arm_neon_vtbx2:
3198 return SelectVTBL(N, true, 2, ARM::VTBX2Pseudo);
3199 case Intrinsic::arm_neon_vtbx3:
3200 return SelectVTBL(N, true, 3, ARM::VTBX3Pseudo);
3201 case Intrinsic::arm_neon_vtbx4:
3202 return SelectVTBL(N, true, 4, ARM::VTBX4Pseudo);
3207 case ARMISD::VTBL1: {
3208 DebugLoc dl = N->getDebugLoc();
3209 EVT VT = N->getValueType(0);
3210 SmallVector<SDValue, 6> Ops;
3212 Ops.push_back(N->getOperand(0));
3213 Ops.push_back(N->getOperand(1));
3214 Ops.push_back(getAL(CurDAG)); // Predicate
3215 Ops.push_back(CurDAG->getRegister(0, MVT::i32)); // Predicate Register
3216 return CurDAG->getMachineNode(ARM::VTBL1, dl, VT, Ops.data(), Ops.size());
3218 case ARMISD::VTBL2: {
3219 DebugLoc dl = N->getDebugLoc();
3220 EVT VT = N->getValueType(0);
3222 // Form a REG_SEQUENCE to force register allocation.
3223 SDValue V0 = N->getOperand(0);
3224 SDValue V1 = N->getOperand(1);
3225 SDValue RegSeq = SDValue(PairDRegs(MVT::v16i8, V0, V1), 0);
3227 SmallVector<SDValue, 6> Ops;
3228 Ops.push_back(RegSeq);
3229 Ops.push_back(N->getOperand(2));
3230 Ops.push_back(getAL(CurDAG)); // Predicate
3231 Ops.push_back(CurDAG->getRegister(0, MVT::i32)); // Predicate Register
3232 return CurDAG->getMachineNode(ARM::VTBL2Pseudo, dl, VT,
3233 Ops.data(), Ops.size());
3236 case ISD::CONCAT_VECTORS:
3237 return SelectConcatVector(N);
3239 case ARMISD::ATOMOR64_DAG:
3240 return SelectAtomic64(N, ARM::ATOMOR6432);
3241 case ARMISD::ATOMXOR64_DAG:
3242 return SelectAtomic64(N, ARM::ATOMXOR6432);
3243 case ARMISD::ATOMADD64_DAG:
3244 return SelectAtomic64(N, ARM::ATOMADD6432);
3245 case ARMISD::ATOMSUB64_DAG:
3246 return SelectAtomic64(N, ARM::ATOMSUB6432);
3247 case ARMISD::ATOMNAND64_DAG:
3248 return SelectAtomic64(N, ARM::ATOMNAND6432);
3249 case ARMISD::ATOMAND64_DAG:
3250 return SelectAtomic64(N, ARM::ATOMAND6432);
3251 case ARMISD::ATOMSWAP64_DAG:
3252 return SelectAtomic64(N, ARM::ATOMSWAP6432);
3253 case ARMISD::ATOMCMPXCHG64_DAG:
3254 return SelectAtomic64(N, ARM::ATOMCMPXCHG6432);
3257 return SelectCode(N);
3260 bool ARMDAGToDAGISel::
3261 SelectInlineAsmMemoryOperand(const SDValue &Op, char ConstraintCode,
3262 std::vector<SDValue> &OutOps) {
3263 assert(ConstraintCode == 'm' && "unexpected asm memory constraint");
3264 // Require the address to be in a register. That is safe for all ARM
3265 // variants and it is hard to do anything much smarter without knowing
3266 // how the operand is used.
3267 OutOps.push_back(Op);
3271 /// createARMISelDag - This pass converts a legalized DAG into a
3272 /// ARM-specific DAG, ready for instruction scheduling.
3274 FunctionPass *llvm::createARMISelDag(ARMBaseTargetMachine &TM,
3275 CodeGenOpt::Level OptLevel) {
3276 return new ARMDAGToDAGISel(TM, OptLevel);