1 //===-- ARMInstPrinter.cpp - Convert ARM MCInst to assembly syntax --------===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // This class prints an ARM MCInst to a .s file.
11 //===----------------------------------------------------------------------===//
13 #include "ARMInstPrinter.h"
14 #include "Utils/ARMBaseInfo.h"
15 #include "MCTargetDesc/ARMAddressingModes.h"
16 #include "MCTargetDesc/ARMBaseInfo.h"
17 #include "llvm/MC/MCAsmInfo.h"
18 #include "llvm/MC/MCExpr.h"
19 #include "llvm/MC/MCInst.h"
20 #include "llvm/MC/MCInstrInfo.h"
21 #include "llvm/MC/MCRegisterInfo.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/MC/SubtargetFeature.h"
24 #include "llvm/Support/Casting.h"
25 #include "llvm/Support/ErrorHandling.h"
26 #include "llvm/Support/MathExtras.h"
27 #include "llvm/Support/raw_ostream.h"
34 #define DEBUG_TYPE "asm-printer"
36 #define PRINT_ALIAS_INSTR
37 #include "ARMGenAsmWriter.inc"
39 /// translateShiftImm - Convert shift immediate from 0-31 to 1-32 for printing.
41 /// getSORegOffset returns an integer from 0-31, representing '32' as 0.
42 static unsigned translateShiftImm(unsigned imm) {
43 // lsr #32 and asr #32 exist, but should be encoded as a 0.
44 assert((imm & ~0x1f) == 0 && "Invalid shift encoding");
51 /// Prints the shift value with an immediate value.
52 static void printRegImmShift(raw_ostream &O, ARM_AM::ShiftOpc ShOpc,
53 unsigned ShImm, bool UseMarkup) {
54 if (ShOpc == ARM_AM::no_shift || (ShOpc == ARM_AM::lsl && !ShImm))
58 assert(!(ShOpc == ARM_AM::ror && !ShImm) && "Cannot have ror #0");
59 O << getShiftOpcStr(ShOpc);
61 if (ShOpc != ARM_AM::rrx) {
65 O << "#" << translateShiftImm(ShImm);
71 ARMInstPrinter::ARMInstPrinter(const MCAsmInfo &MAI, const MCInstrInfo &MII,
72 const MCRegisterInfo &MRI)
73 : MCInstPrinter(MAI, MII, MRI) {}
75 bool ARMInstPrinter::applyTargetSpecificCLOption(StringRef Opt) {
76 if (Opt == "reg-names-std") {
77 DefaultAltIdx = ARM::NoRegAltName;
80 if (Opt == "reg-names-raw") {
81 DefaultAltIdx = ARM::RegNamesRaw;
87 void ARMInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
88 OS << markup("<reg:") << getRegisterName(RegNo, DefaultAltIdx) << markup(">");
91 void ARMInstPrinter::printInst(const MCInst *MI, uint64_t Address,
92 StringRef Annot, const MCSubtargetInfo &STI,
94 unsigned Opcode = MI->getOpcode();
97 // Check for MOVs and print canonical forms, instead.
99 // FIXME: Thumb variants?
100 const MCOperand &Dst = MI->getOperand(0);
101 const MCOperand &MO1 = MI->getOperand(1);
102 const MCOperand &MO2 = MI->getOperand(2);
103 const MCOperand &MO3 = MI->getOperand(3);
105 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO3.getImm()));
106 printSBitModifierOperand(MI, 6, STI, O);
107 printPredicateOperand(MI, 4, STI, O);
110 printRegName(O, Dst.getReg());
112 printRegName(O, MO1.getReg());
115 printRegName(O, MO2.getReg());
116 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
117 printAnnotation(O, Annot);
122 // FIXME: Thumb variants?
123 const MCOperand &Dst = MI->getOperand(0);
124 const MCOperand &MO1 = MI->getOperand(1);
125 const MCOperand &MO2 = MI->getOperand(2);
127 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO2.getImm()));
128 printSBitModifierOperand(MI, 5, STI, O);
129 printPredicateOperand(MI, 3, STI, O);
132 printRegName(O, Dst.getReg());
134 printRegName(O, MO1.getReg());
136 if (ARM_AM::getSORegShOp(MO2.getImm()) == ARM_AM::rrx) {
137 printAnnotation(O, Annot);
141 O << ", " << markup("<imm:") << "#"
142 << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm())) << markup(">");
143 printAnnotation(O, Annot);
149 case ARM::t2STMDB_UPD:
150 if (MI->getOperand(0).getReg() == ARM::SP && MI->getNumOperands() > 5) {
151 // Should only print PUSH if there are at least two registers in the list.
153 printPredicateOperand(MI, 2, STI, O);
154 if (Opcode == ARM::t2STMDB_UPD)
157 printRegisterList(MI, 4, STI, O);
158 printAnnotation(O, Annot);
163 case ARM::STR_PRE_IMM:
164 if (MI->getOperand(2).getReg() == ARM::SP &&
165 MI->getOperand(3).getImm() == -4) {
167 printPredicateOperand(MI, 4, STI, O);
169 printRegName(O, MI->getOperand(1).getReg());
171 printAnnotation(O, Annot);
178 case ARM::t2LDMIA_UPD:
179 if (MI->getOperand(0).getReg() == ARM::SP && MI->getNumOperands() > 5) {
180 // Should only print POP if there are at least two registers in the list.
182 printPredicateOperand(MI, 2, STI, O);
183 if (Opcode == ARM::t2LDMIA_UPD)
186 printRegisterList(MI, 4, STI, O);
187 printAnnotation(O, Annot);
192 case ARM::LDR_POST_IMM:
193 if (MI->getOperand(2).getReg() == ARM::SP &&
194 MI->getOperand(4).getImm() == 4) {
196 printPredicateOperand(MI, 5, STI, O);
198 printRegName(O, MI->getOperand(0).getReg());
200 printAnnotation(O, Annot);
206 case ARM::VSTMSDB_UPD:
207 case ARM::VSTMDDB_UPD:
208 if (MI->getOperand(0).getReg() == ARM::SP) {
209 O << '\t' << "vpush";
210 printPredicateOperand(MI, 2, STI, O);
212 printRegisterList(MI, 4, STI, O);
213 printAnnotation(O, Annot);
219 case ARM::VLDMSIA_UPD:
220 case ARM::VLDMDIA_UPD:
221 if (MI->getOperand(0).getReg() == ARM::SP) {
223 printPredicateOperand(MI, 2, STI, O);
225 printRegisterList(MI, 4, STI, O);
226 printAnnotation(O, Annot);
232 bool Writeback = true;
233 unsigned BaseReg = MI->getOperand(0).getReg();
234 for (unsigned i = 3; i < MI->getNumOperands(); ++i) {
235 if (MI->getOperand(i).getReg() == BaseReg)
241 printPredicateOperand(MI, 1, STI, O);
243 printRegName(O, BaseReg);
247 printRegisterList(MI, 3, STI, O);
248 printAnnotation(O, Annot);
252 // Combine 2 GPRs from disassember into a GPRPair to match with instr def.
253 // ldrexd/strexd require even/odd GPR pair. To enforce this constraint,
254 // a single GPRPair reg operand is used in the .td file to replace the two
255 // GPRs. However, when decoding them, the two GRPs cannot be automatically
256 // expressed as a GPRPair, so we have to manually merge them.
257 // FIXME: We would really like to be able to tablegen'erate this.
262 const MCRegisterClass &MRC = MRI.getRegClass(ARM::GPRRegClassID);
263 bool isStore = Opcode == ARM::STREXD || Opcode == ARM::STLEXD;
264 unsigned Reg = MI->getOperand(isStore ? 1 : 0).getReg();
265 if (MRC.contains(Reg)) {
268 NewMI.setOpcode(Opcode);
271 NewMI.addOperand(MI->getOperand(0));
272 NewReg = MCOperand::createReg(MRI.getMatchingSuperReg(
273 Reg, ARM::gsub_0, &MRI.getRegClass(ARM::GPRPairRegClassID)));
274 NewMI.addOperand(NewReg);
276 // Copy the rest operands into NewMI.
277 for (unsigned i = isStore ? 3 : 2; i < MI->getNumOperands(); ++i)
278 NewMI.addOperand(MI->getOperand(i));
279 printInstruction(&NewMI, Address, STI, O);
289 switch (MI->getOperand(0).getImm()) {
291 if (!printAliasInstr(MI, STI, O))
292 printInstruction(MI, Address, STI, O);
301 printAnnotation(O, Annot);
305 if (!printAliasInstr(MI, STI, O))
306 printInstruction(MI, Address, STI, O);
308 printAnnotation(O, Annot);
311 void ARMInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
312 const MCSubtargetInfo &STI, raw_ostream &O) {
313 const MCOperand &Op = MI->getOperand(OpNo);
315 unsigned Reg = Op.getReg();
316 printRegName(O, Reg);
317 } else if (Op.isImm()) {
318 O << markup("<imm:") << '#' << formatImm(Op.getImm()) << markup(">");
320 assert(Op.isExpr() && "unknown operand kind in printOperand");
321 const MCExpr *Expr = Op.getExpr();
322 switch (Expr->getKind()) {
325 Expr->print(O, &MAI);
327 case MCExpr::Constant: {
328 // If a symbolic branch target was added as a constant expression then
329 // print that address in hex. And only print 32 unsigned bits for the
331 const MCConstantExpr *Constant = cast<MCConstantExpr>(Expr);
332 int64_t TargetAddress;
333 if (!Constant->evaluateAsAbsolute(TargetAddress)) {
335 Expr->print(O, &MAI);
338 O.write_hex(static_cast<uint32_t>(TargetAddress));
343 // FIXME: Should we always treat this as if it is a constant literal and
344 // prefix it with '#'?
345 Expr->print(O, &MAI);
351 void ARMInstPrinter::printThumbLdrLabelOperand(const MCInst *MI, unsigned OpNum,
352 const MCSubtargetInfo &STI,
354 const MCOperand &MO1 = MI->getOperand(OpNum);
356 MO1.getExpr()->print(O, &MAI);
360 O << markup("<mem:") << "[pc, ";
362 int32_t OffImm = (int32_t)MO1.getImm();
363 bool isSub = OffImm < 0;
365 // Special value for #-0. All others are normal.
366 if (OffImm == INT32_MIN)
369 O << markup("<imm:") << "#-" << formatImm(-OffImm) << markup(">");
371 O << markup("<imm:") << "#" << formatImm(OffImm) << markup(">");
373 O << "]" << markup(">");
376 // so_reg is a 4-operand unit corresponding to register forms of the A5.1
377 // "Addressing Mode 1 - Data-processing operands" forms. This includes:
379 // REG REG 0,SH_OPC - e.g. R5, ROR R3
380 // REG 0 IMM,SH_OPC - e.g. R5, LSL #3
381 void ARMInstPrinter::printSORegRegOperand(const MCInst *MI, unsigned OpNum,
382 const MCSubtargetInfo &STI,
384 const MCOperand &MO1 = MI->getOperand(OpNum);
385 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
386 const MCOperand &MO3 = MI->getOperand(OpNum + 2);
388 printRegName(O, MO1.getReg());
390 // Print the shift opc.
391 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO3.getImm());
392 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
393 if (ShOpc == ARM_AM::rrx)
397 printRegName(O, MO2.getReg());
398 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
401 void ARMInstPrinter::printSORegImmOperand(const MCInst *MI, unsigned OpNum,
402 const MCSubtargetInfo &STI,
404 const MCOperand &MO1 = MI->getOperand(OpNum);
405 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
407 printRegName(O, MO1.getReg());
409 // Print the shift opc.
410 printRegImmShift(O, ARM_AM::getSORegShOp(MO2.getImm()),
411 ARM_AM::getSORegOffset(MO2.getImm()), UseMarkup);
414 //===--------------------------------------------------------------------===//
415 // Addressing Mode #2
416 //===--------------------------------------------------------------------===//
418 void ARMInstPrinter::printAM2PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
419 const MCSubtargetInfo &STI,
421 const MCOperand &MO1 = MI->getOperand(Op);
422 const MCOperand &MO2 = MI->getOperand(Op + 1);
423 const MCOperand &MO3 = MI->getOperand(Op + 2);
425 O << markup("<mem:") << "[";
426 printRegName(O, MO1.getReg());
429 if (ARM_AM::getAM2Offset(MO3.getImm())) { // Don't print +0.
430 O << ", " << markup("<imm:") << "#"
431 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
432 << ARM_AM::getAM2Offset(MO3.getImm()) << markup(">");
434 O << "]" << markup(">");
439 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()));
440 printRegName(O, MO2.getReg());
442 printRegImmShift(O, ARM_AM::getAM2ShiftOpc(MO3.getImm()),
443 ARM_AM::getAM2Offset(MO3.getImm()), UseMarkup);
444 O << "]" << markup(">");
447 void ARMInstPrinter::printAddrModeTBB(const MCInst *MI, unsigned Op,
448 const MCSubtargetInfo &STI,
450 const MCOperand &MO1 = MI->getOperand(Op);
451 const MCOperand &MO2 = MI->getOperand(Op + 1);
452 O << markup("<mem:") << "[";
453 printRegName(O, MO1.getReg());
455 printRegName(O, MO2.getReg());
456 O << "]" << markup(">");
459 void ARMInstPrinter::printAddrModeTBH(const MCInst *MI, unsigned Op,
460 const MCSubtargetInfo &STI,
462 const MCOperand &MO1 = MI->getOperand(Op);
463 const MCOperand &MO2 = MI->getOperand(Op + 1);
464 O << markup("<mem:") << "[";
465 printRegName(O, MO1.getReg());
467 printRegName(O, MO2.getReg());
468 O << ", lsl " << markup("<imm:") << "#1" << markup(">") << "]" << markup(">");
471 void ARMInstPrinter::printAddrMode2Operand(const MCInst *MI, unsigned Op,
472 const MCSubtargetInfo &STI,
474 const MCOperand &MO1 = MI->getOperand(Op);
476 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
477 printOperand(MI, Op, STI, O);
482 const MCOperand &MO3 = MI->getOperand(Op + 2);
483 unsigned IdxMode = ARM_AM::getAM2IdxMode(MO3.getImm());
484 assert(IdxMode != ARMII::IndexModePost && "Should be pre or offset index op");
487 printAM2PreOrOffsetIndexOp(MI, Op, STI, O);
490 void ARMInstPrinter::printAddrMode2OffsetOperand(const MCInst *MI,
492 const MCSubtargetInfo &STI,
494 const MCOperand &MO1 = MI->getOperand(OpNum);
495 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
498 unsigned ImmOffs = ARM_AM::getAM2Offset(MO2.getImm());
499 O << markup("<imm:") << '#'
500 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm())) << ImmOffs
505 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()));
506 printRegName(O, MO1.getReg());
508 printRegImmShift(O, ARM_AM::getAM2ShiftOpc(MO2.getImm()),
509 ARM_AM::getAM2Offset(MO2.getImm()), UseMarkup);
512 //===--------------------------------------------------------------------===//
513 // Addressing Mode #3
514 //===--------------------------------------------------------------------===//
516 void ARMInstPrinter::printAM3PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
518 bool AlwaysPrintImm0) {
519 const MCOperand &MO1 = MI->getOperand(Op);
520 const MCOperand &MO2 = MI->getOperand(Op + 1);
521 const MCOperand &MO3 = MI->getOperand(Op + 2);
523 O << markup("<mem:") << '[';
524 printRegName(O, MO1.getReg());
527 O << ", " << getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()));
528 printRegName(O, MO2.getReg());
529 O << ']' << markup(">");
533 // If the op is sub we have to print the immediate even if it is 0
534 unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm());
535 ARM_AM::AddrOpc op = ARM_AM::getAM3Op(MO3.getImm());
537 if (AlwaysPrintImm0 || ImmOffs || (op == ARM_AM::sub)) {
538 O << ", " << markup("<imm:") << "#" << ARM_AM::getAddrOpcStr(op) << ImmOffs
541 O << ']' << markup(">");
544 template <bool AlwaysPrintImm0>
545 void ARMInstPrinter::printAddrMode3Operand(const MCInst *MI, unsigned Op,
546 const MCSubtargetInfo &STI,
548 const MCOperand &MO1 = MI->getOperand(Op);
549 if (!MO1.isReg()) { // For label symbolic references.
550 printOperand(MI, Op, STI, O);
554 assert(ARM_AM::getAM3IdxMode(MI->getOperand(Op + 2).getImm()) !=
555 ARMII::IndexModePost &&
556 "unexpected idxmode");
557 printAM3PreOrOffsetIndexOp(MI, Op, O, AlwaysPrintImm0);
560 void ARMInstPrinter::printAddrMode3OffsetOperand(const MCInst *MI,
562 const MCSubtargetInfo &STI,
564 const MCOperand &MO1 = MI->getOperand(OpNum);
565 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
568 O << getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()));
569 printRegName(O, MO1.getReg());
573 unsigned ImmOffs = ARM_AM::getAM3Offset(MO2.getImm());
574 O << markup("<imm:") << '#'
575 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm())) << ImmOffs
579 void ARMInstPrinter::printPostIdxImm8Operand(const MCInst *MI, unsigned OpNum,
580 const MCSubtargetInfo &STI,
582 const MCOperand &MO = MI->getOperand(OpNum);
583 unsigned Imm = MO.getImm();
584 O << markup("<imm:") << '#' << ((Imm & 256) ? "" : "-") << (Imm & 0xff)
588 void ARMInstPrinter::printPostIdxRegOperand(const MCInst *MI, unsigned OpNum,
589 const MCSubtargetInfo &STI,
591 const MCOperand &MO1 = MI->getOperand(OpNum);
592 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
594 O << (MO2.getImm() ? "" : "-");
595 printRegName(O, MO1.getReg());
598 void ARMInstPrinter::printPostIdxImm8s4Operand(const MCInst *MI, unsigned OpNum,
599 const MCSubtargetInfo &STI,
601 const MCOperand &MO = MI->getOperand(OpNum);
602 unsigned Imm = MO.getImm();
603 O << markup("<imm:") << '#' << ((Imm & 256) ? "" : "-") << ((Imm & 0xff) << 2)
608 void ARMInstPrinter::printMveAddrModeRQOperand(const MCInst *MI, unsigned OpNum,
609 const MCSubtargetInfo &STI,
611 const MCOperand &MO1 = MI->getOperand(OpNum);
612 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
614 O << markup("<mem:") << "[";
615 printRegName(O, MO1.getReg());
617 printRegName(O, MO2.getReg());
620 printRegImmShift(O, ARM_AM::uxtw, shift, UseMarkup);
622 O << "]" << markup(">");
625 void ARMInstPrinter::printMveAddrModeQOperand(const MCInst *MI, unsigned OpNum,
626 const MCSubtargetInfo &STI,
628 const MCOperand &MO1 = MI->getOperand(OpNum);
629 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
631 O << markup("<mem:") << "[";
632 printRegName(O, MO1.getReg());
634 int64_t Imm = MO2.getImm();
636 O << ", " << markup("<imm:") << '#' << Imm << markup(">");
638 O << "]" << markup(">");
641 void ARMInstPrinter::printLdStmModeOperand(const MCInst *MI, unsigned OpNum,
642 const MCSubtargetInfo &STI,
644 ARM_AM::AMSubMode Mode =
645 ARM_AM::getAM4SubMode(MI->getOperand(OpNum).getImm());
646 O << ARM_AM::getAMSubModeStr(Mode);
649 template <bool AlwaysPrintImm0>
650 void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
651 const MCSubtargetInfo &STI,
653 const MCOperand &MO1 = MI->getOperand(OpNum);
654 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
656 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
657 printOperand(MI, OpNum, STI, O);
661 O << markup("<mem:") << "[";
662 printRegName(O, MO1.getReg());
664 unsigned ImmOffs = ARM_AM::getAM5Offset(MO2.getImm());
665 ARM_AM::AddrOpc Op = ARM_AM::getAM5Op(MO2.getImm());
666 if (AlwaysPrintImm0 || ImmOffs || Op == ARM_AM::sub) {
667 O << ", " << markup("<imm:") << "#" << ARM_AM::getAddrOpcStr(Op)
668 << ImmOffs * 4 << markup(">");
670 O << "]" << markup(">");
673 template <bool AlwaysPrintImm0>
674 void ARMInstPrinter::printAddrMode5FP16Operand(const MCInst *MI, unsigned OpNum,
675 const MCSubtargetInfo &STI,
677 const MCOperand &MO1 = MI->getOperand(OpNum);
678 const MCOperand &MO2 = MI->getOperand(OpNum+1);
680 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
681 printOperand(MI, OpNum, STI, O);
685 O << markup("<mem:") << "[";
686 printRegName(O, MO1.getReg());
688 unsigned ImmOffs = ARM_AM::getAM5FP16Offset(MO2.getImm());
689 unsigned Op = ARM_AM::getAM5FP16Op(MO2.getImm());
690 if (AlwaysPrintImm0 || ImmOffs || Op == ARM_AM::sub) {
694 << ARM_AM::getAddrOpcStr(ARM_AM::getAM5FP16Op(MO2.getImm()))
698 O << "]" << markup(">");
701 void ARMInstPrinter::printAddrMode6Operand(const MCInst *MI, unsigned OpNum,
702 const MCSubtargetInfo &STI,
704 const MCOperand &MO1 = MI->getOperand(OpNum);
705 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
707 O << markup("<mem:") << "[";
708 printRegName(O, MO1.getReg());
710 O << ":" << (MO2.getImm() << 3);
712 O << "]" << markup(">");
715 void ARMInstPrinter::printAddrMode7Operand(const MCInst *MI, unsigned OpNum,
716 const MCSubtargetInfo &STI,
718 const MCOperand &MO1 = MI->getOperand(OpNum);
719 O << markup("<mem:") << "[";
720 printRegName(O, MO1.getReg());
721 O << "]" << markup(">");
724 void ARMInstPrinter::printAddrMode6OffsetOperand(const MCInst *MI,
726 const MCSubtargetInfo &STI,
728 const MCOperand &MO = MI->getOperand(OpNum);
729 if (MO.getReg() == 0)
733 printRegName(O, MO.getReg());
737 void ARMInstPrinter::printBitfieldInvMaskImmOperand(const MCInst *MI,
739 const MCSubtargetInfo &STI,
741 const MCOperand &MO = MI->getOperand(OpNum);
742 uint32_t v = ~MO.getImm();
743 int32_t lsb = countTrailingZeros(v);
744 int32_t width = (32 - countLeadingZeros(v)) - lsb;
745 assert(MO.isImm() && "Not a valid bf_inv_mask_imm value!");
746 O << markup("<imm:") << '#' << lsb << markup(">") << ", " << markup("<imm:")
747 << '#' << width << markup(">");
750 void ARMInstPrinter::printMemBOption(const MCInst *MI, unsigned OpNum,
751 const MCSubtargetInfo &STI,
753 unsigned val = MI->getOperand(OpNum).getImm();
754 O << ARM_MB::MemBOptToString(val, STI.getFeatureBits()[ARM::HasV8Ops]);
757 void ARMInstPrinter::printInstSyncBOption(const MCInst *MI, unsigned OpNum,
758 const MCSubtargetInfo &STI,
760 unsigned val = MI->getOperand(OpNum).getImm();
761 O << ARM_ISB::InstSyncBOptToString(val);
764 void ARMInstPrinter::printTraceSyncBOption(const MCInst *MI, unsigned OpNum,
765 const MCSubtargetInfo &STI,
767 unsigned val = MI->getOperand(OpNum).getImm();
768 O << ARM_TSB::TraceSyncBOptToString(val);
771 void ARMInstPrinter::printShiftImmOperand(const MCInst *MI, unsigned OpNum,
772 const MCSubtargetInfo &STI,
774 unsigned ShiftOp = MI->getOperand(OpNum).getImm();
775 bool isASR = (ShiftOp & (1 << 5)) != 0;
776 unsigned Amt = ShiftOp & 0x1f;
778 O << ", asr " << markup("<imm:") << "#" << (Amt == 0 ? 32 : Amt)
781 O << ", lsl " << markup("<imm:") << "#" << Amt << markup(">");
785 void ARMInstPrinter::printPKHLSLShiftImm(const MCInst *MI, unsigned OpNum,
786 const MCSubtargetInfo &STI,
788 unsigned Imm = MI->getOperand(OpNum).getImm();
791 assert(Imm > 0 && Imm < 32 && "Invalid PKH shift immediate value!");
792 O << ", lsl " << markup("<imm:") << "#" << Imm << markup(">");
795 void ARMInstPrinter::printPKHASRShiftImm(const MCInst *MI, unsigned OpNum,
796 const MCSubtargetInfo &STI,
798 unsigned Imm = MI->getOperand(OpNum).getImm();
799 // A shift amount of 32 is encoded as 0.
802 assert(Imm > 0 && Imm <= 32 && "Invalid PKH shift immediate value!");
803 O << ", asr " << markup("<imm:") << "#" << Imm << markup(">");
806 void ARMInstPrinter::printRegisterList(const MCInst *MI, unsigned OpNum,
807 const MCSubtargetInfo &STI,
809 if (MI->getOpcode() != ARM::t2CLRM) {
810 assert(std::is_sorted(MI->begin() + OpNum, MI->end(),
811 [&](const MCOperand &LHS, const MCOperand &RHS) {
812 return MRI.getEncodingValue(LHS.getReg()) <
813 MRI.getEncodingValue(RHS.getReg());
818 for (unsigned i = OpNum, e = MI->getNumOperands(); i != e; ++i) {
821 printRegName(O, MI->getOperand(i).getReg());
826 void ARMInstPrinter::printGPRPairOperand(const MCInst *MI, unsigned OpNum,
827 const MCSubtargetInfo &STI,
829 unsigned Reg = MI->getOperand(OpNum).getReg();
830 printRegName(O, MRI.getSubReg(Reg, ARM::gsub_0));
832 printRegName(O, MRI.getSubReg(Reg, ARM::gsub_1));
835 void ARMInstPrinter::printSetendOperand(const MCInst *MI, unsigned OpNum,
836 const MCSubtargetInfo &STI,
838 const MCOperand &Op = MI->getOperand(OpNum);
845 void ARMInstPrinter::printCPSIMod(const MCInst *MI, unsigned OpNum,
846 const MCSubtargetInfo &STI, raw_ostream &O) {
847 const MCOperand &Op = MI->getOperand(OpNum);
848 O << ARM_PROC::IModToString(Op.getImm());
851 void ARMInstPrinter::printCPSIFlag(const MCInst *MI, unsigned OpNum,
852 const MCSubtargetInfo &STI, raw_ostream &O) {
853 const MCOperand &Op = MI->getOperand(OpNum);
854 unsigned IFlags = Op.getImm();
855 for (int i = 2; i >= 0; --i)
856 if (IFlags & (1 << i))
857 O << ARM_PROC::IFlagsToString(1 << i);
863 void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
864 const MCSubtargetInfo &STI,
866 const MCOperand &Op = MI->getOperand(OpNum);
867 const FeatureBitset &FeatureBits = STI.getFeatureBits();
868 if (FeatureBits[ARM::FeatureMClass]) {
870 unsigned SYSm = Op.getImm() & 0xFFF; // 12-bit SYSm
871 unsigned Opcode = MI->getOpcode();
873 // For writes, handle extended mask bits if the DSP extension is present.
874 if (Opcode == ARM::t2MSR_M && FeatureBits[ARM::FeatureDSP]) {
875 auto TheReg =ARMSysReg::lookupMClassSysRegBy12bitSYSmValue(SYSm);
876 if (TheReg && TheReg->isInRequiredFeatures({ARM::FeatureDSP})) {
882 // Handle the basic 8-bit mask.
884 if (Opcode == ARM::t2MSR_M && FeatureBits [ARM::HasV7Ops]) {
885 // ARMv7-M deprecates using MSR APSR without a _<bits> qualifier as an
886 // alias for MSR APSR_nzcvq.
887 auto TheReg = ARMSysReg::lookupMClassSysRegAPSRNonDeprecated(SYSm);
894 auto TheReg = ARMSysReg::lookupMClassSysRegBy8bitSYSmValue(SYSm);
905 // As special cases, CPSR_f, CPSR_s and CPSR_fs prefer printing as
906 // APSR_nzcvq, APSR_g and APSRnzcvqg, respectively.
907 unsigned SpecRegRBit = Op.getImm() >> 4;
908 unsigned Mask = Op.getImm() & 0xf;
910 if (!SpecRegRBit && (Mask == 8 || Mask == 4 || Mask == 12)) {
914 llvm_unreachable("Unexpected mask value!");
945 void ARMInstPrinter::printBankedRegOperand(const MCInst *MI, unsigned OpNum,
946 const MCSubtargetInfo &STI,
948 uint32_t Banked = MI->getOperand(OpNum).getImm();
949 auto TheReg = ARMBankedReg::lookupBankedRegByEncoding(Banked);
950 assert(TheReg && "invalid banked register operand");
951 std::string Name = TheReg->Name;
953 uint32_t isSPSR = (Banked & 0x20) >> 5;
955 Name.replace(0, 4, "SPSR"); // convert 'spsr_' to 'SPSR_'
959 void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum,
960 const MCSubtargetInfo &STI,
962 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
963 // Handle the undefined 15 CC value here for printing so we don't abort().
964 if ((unsigned)CC == 15)
966 else if (CC != ARMCC::AL)
967 O << ARMCondCodeToString(CC);
970 void ARMInstPrinter::printMandatoryRestrictedPredicateOperand(
971 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
973 if ((ARMCC::CondCodes)MI->getOperand(OpNum).getImm() == ARMCC::HS)
976 printMandatoryPredicateOperand(MI, OpNum, STI, O);
979 void ARMInstPrinter::printMandatoryPredicateOperand(const MCInst *MI,
981 const MCSubtargetInfo &STI,
983 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
984 O << ARMCondCodeToString(CC);
987 void ARMInstPrinter::printMandatoryInvertedPredicateOperand(const MCInst *MI,
989 const MCSubtargetInfo &STI,
991 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
992 O << ARMCondCodeToString(ARMCC::getOppositeCondition(CC));
995 void ARMInstPrinter::printSBitModifierOperand(const MCInst *MI, unsigned OpNum,
996 const MCSubtargetInfo &STI,
998 if (MI->getOperand(OpNum).getReg()) {
999 assert(MI->getOperand(OpNum).getReg() == ARM::CPSR &&
1000 "Expect ARM CPSR register!");
1005 void ARMInstPrinter::printNoHashImmediate(const MCInst *MI, unsigned OpNum,
1006 const MCSubtargetInfo &STI,
1008 O << MI->getOperand(OpNum).getImm();
1011 void ARMInstPrinter::printPImmediate(const MCInst *MI, unsigned OpNum,
1012 const MCSubtargetInfo &STI,
1014 O << "p" << MI->getOperand(OpNum).getImm();
1017 void ARMInstPrinter::printCImmediate(const MCInst *MI, unsigned OpNum,
1018 const MCSubtargetInfo &STI,
1020 O << "c" << MI->getOperand(OpNum).getImm();
1023 void ARMInstPrinter::printCoprocOptionImm(const MCInst *MI, unsigned OpNum,
1024 const MCSubtargetInfo &STI,
1026 O << "{" << MI->getOperand(OpNum).getImm() << "}";
1029 void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum,
1030 const MCSubtargetInfo &STI, raw_ostream &O) {
1031 llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
1034 template <unsigned scale>
1035 void ARMInstPrinter::printAdrLabelOperand(const MCInst *MI, unsigned OpNum,
1036 const MCSubtargetInfo &STI,
1038 const MCOperand &MO = MI->getOperand(OpNum);
1041 MO.getExpr()->print(O, &MAI);
1045 int32_t OffImm = (int32_t)MO.getImm() << scale;
1047 O << markup("<imm:");
1048 if (OffImm == INT32_MIN)
1050 else if (OffImm < 0)
1051 O << "#-" << -OffImm;
1057 void ARMInstPrinter::printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum,
1058 const MCSubtargetInfo &STI,
1060 O << markup("<imm:") << "#" << formatImm(MI->getOperand(OpNum).getImm() * 4)
1064 void ARMInstPrinter::printThumbSRImm(const MCInst *MI, unsigned OpNum,
1065 const MCSubtargetInfo &STI,
1067 unsigned Imm = MI->getOperand(OpNum).getImm();
1068 O << markup("<imm:") << "#" << formatImm((Imm == 0 ? 32 : Imm))
1072 void ARMInstPrinter::printThumbITMask(const MCInst *MI, unsigned OpNum,
1073 const MCSubtargetInfo &STI,
1075 // (3 - the number of trailing zeros) is the number of then / else.
1076 unsigned Mask = MI->getOperand(OpNum).getImm();
1077 unsigned NumTZ = countTrailingZeros(Mask);
1078 assert(NumTZ <= 3 && "Invalid IT mask!");
1079 for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
1080 if ((Mask >> Pos) & 1)
1087 void ARMInstPrinter::printThumbAddrModeRROperand(const MCInst *MI, unsigned Op,
1088 const MCSubtargetInfo &STI,
1090 const MCOperand &MO1 = MI->getOperand(Op);
1091 const MCOperand &MO2 = MI->getOperand(Op + 1);
1093 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
1094 printOperand(MI, Op, STI, O);
1098 O << markup("<mem:") << "[";
1099 printRegName(O, MO1.getReg());
1100 if (unsigned RegNum = MO2.getReg()) {
1102 printRegName(O, RegNum);
1104 O << "]" << markup(">");
1107 void ARMInstPrinter::printThumbAddrModeImm5SOperand(const MCInst *MI,
1109 const MCSubtargetInfo &STI,
1112 const MCOperand &MO1 = MI->getOperand(Op);
1113 const MCOperand &MO2 = MI->getOperand(Op + 1);
1115 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
1116 printOperand(MI, Op, STI, O);
1120 O << markup("<mem:") << "[";
1121 printRegName(O, MO1.getReg());
1122 if (unsigned ImmOffs = MO2.getImm()) {
1123 O << ", " << markup("<imm:") << "#" << formatImm(ImmOffs * Scale)
1126 O << "]" << markup(">");
1129 void ARMInstPrinter::printThumbAddrModeImm5S1Operand(const MCInst *MI,
1131 const MCSubtargetInfo &STI,
1133 printThumbAddrModeImm5SOperand(MI, Op, STI, O, 1);
1136 void ARMInstPrinter::printThumbAddrModeImm5S2Operand(const MCInst *MI,
1138 const MCSubtargetInfo &STI,
1140 printThumbAddrModeImm5SOperand(MI, Op, STI, O, 2);
1143 void ARMInstPrinter::printThumbAddrModeImm5S4Operand(const MCInst *MI,
1145 const MCSubtargetInfo &STI,
1147 printThumbAddrModeImm5SOperand(MI, Op, STI, O, 4);
1150 void ARMInstPrinter::printThumbAddrModeSPOperand(const MCInst *MI, unsigned Op,
1151 const MCSubtargetInfo &STI,
1153 printThumbAddrModeImm5SOperand(MI, Op, STI, O, 4);
1156 // Constant shifts t2_so_reg is a 2-operand unit corresponding to the Thumb2
1157 // register with shift forms.
1158 // REG 0 0 - e.g. R5
1159 // REG IMM, SH_OPC - e.g. R5, LSL #3
1160 void ARMInstPrinter::printT2SOOperand(const MCInst *MI, unsigned OpNum,
1161 const MCSubtargetInfo &STI,
1163 const MCOperand &MO1 = MI->getOperand(OpNum);
1164 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1166 unsigned Reg = MO1.getReg();
1167 printRegName(O, Reg);
1169 // Print the shift opc.
1170 assert(MO2.isImm() && "Not a valid t2_so_reg value!");
1171 printRegImmShift(O, ARM_AM::getSORegShOp(MO2.getImm()),
1172 ARM_AM::getSORegOffset(MO2.getImm()), UseMarkup);
1175 template <bool AlwaysPrintImm0>
1176 void ARMInstPrinter::printAddrModeImm12Operand(const MCInst *MI, unsigned OpNum,
1177 const MCSubtargetInfo &STI,
1179 const MCOperand &MO1 = MI->getOperand(OpNum);
1180 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1182 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
1183 printOperand(MI, OpNum, STI, O);
1187 O << markup("<mem:") << "[";
1188 printRegName(O, MO1.getReg());
1190 int32_t OffImm = (int32_t)MO2.getImm();
1191 bool isSub = OffImm < 0;
1192 // Special value for #-0. All others are normal.
1193 if (OffImm == INT32_MIN)
1196 O << ", " << markup("<imm:") << "#-" << formatImm(-OffImm) << markup(">");
1197 } else if (AlwaysPrintImm0 || OffImm > 0) {
1198 O << ", " << markup("<imm:") << "#" << formatImm(OffImm) << markup(">");
1200 O << "]" << markup(">");
1203 template <bool AlwaysPrintImm0>
1204 void ARMInstPrinter::printT2AddrModeImm8Operand(const MCInst *MI,
1206 const MCSubtargetInfo &STI,
1208 const MCOperand &MO1 = MI->getOperand(OpNum);
1209 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1211 O << markup("<mem:") << "[";
1212 printRegName(O, MO1.getReg());
1214 int32_t OffImm = (int32_t)MO2.getImm();
1215 bool isSub = OffImm < 0;
1217 if (OffImm == INT32_MIN)
1220 O << ", " << markup("<imm:") << "#-" << -OffImm << markup(">");
1221 } else if (AlwaysPrintImm0 || OffImm > 0) {
1222 O << ", " << markup("<imm:") << "#" << OffImm << markup(">");
1224 O << "]" << markup(">");
1227 template <bool AlwaysPrintImm0>
1228 void ARMInstPrinter::printT2AddrModeImm8s4Operand(const MCInst *MI,
1230 const MCSubtargetInfo &STI,
1232 const MCOperand &MO1 = MI->getOperand(OpNum);
1233 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1235 if (!MO1.isReg()) { // For label symbolic references.
1236 printOperand(MI, OpNum, STI, O);
1240 O << markup("<mem:") << "[";
1241 printRegName(O, MO1.getReg());
1243 int32_t OffImm = (int32_t)MO2.getImm();
1244 bool isSub = OffImm < 0;
1246 assert(((OffImm & 0x3) == 0) && "Not a valid immediate!");
1249 if (OffImm == INT32_MIN)
1252 O << ", " << markup("<imm:") << "#-" << -OffImm << markup(">");
1253 } else if (AlwaysPrintImm0 || OffImm > 0) {
1254 O << ", " << markup("<imm:") << "#" << OffImm << markup(">");
1256 O << "]" << markup(">");
1259 void ARMInstPrinter::printT2AddrModeImm0_1020s4Operand(
1260 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1262 const MCOperand &MO1 = MI->getOperand(OpNum);
1263 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1265 O << markup("<mem:") << "[";
1266 printRegName(O, MO1.getReg());
1268 O << ", " << markup("<imm:") << "#" << formatImm(MO2.getImm() * 4)
1271 O << "]" << markup(">");
1274 void ARMInstPrinter::printT2AddrModeImm8OffsetOperand(
1275 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1277 const MCOperand &MO1 = MI->getOperand(OpNum);
1278 int32_t OffImm = (int32_t)MO1.getImm();
1279 O << ", " << markup("<imm:");
1280 if (OffImm == INT32_MIN)
1282 else if (OffImm < 0)
1283 O << "#-" << -OffImm;
1289 void ARMInstPrinter::printT2AddrModeImm8s4OffsetOperand(
1290 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1292 const MCOperand &MO1 = MI->getOperand(OpNum);
1293 int32_t OffImm = (int32_t)MO1.getImm();
1295 assert(((OffImm & 0x3) == 0) && "Not a valid immediate!");
1297 O << ", " << markup("<imm:");
1298 if (OffImm == INT32_MIN)
1300 else if (OffImm < 0)
1301 O << "#-" << -OffImm;
1307 void ARMInstPrinter::printT2AddrModeSoRegOperand(const MCInst *MI,
1309 const MCSubtargetInfo &STI,
1311 const MCOperand &MO1 = MI->getOperand(OpNum);
1312 const MCOperand &MO2 = MI->getOperand(OpNum + 1);
1313 const MCOperand &MO3 = MI->getOperand(OpNum + 2);
1315 O << markup("<mem:") << "[";
1316 printRegName(O, MO1.getReg());
1318 assert(MO2.getReg() && "Invalid so_reg load / store address!");
1320 printRegName(O, MO2.getReg());
1322 unsigned ShAmt = MO3.getImm();
1324 assert(ShAmt <= 3 && "Not a valid Thumb2 addressing mode!");
1325 O << ", lsl " << markup("<imm:") << "#" << ShAmt << markup(">");
1327 O << "]" << markup(">");
1330 void ARMInstPrinter::printFPImmOperand(const MCInst *MI, unsigned OpNum,
1331 const MCSubtargetInfo &STI,
1333 const MCOperand &MO = MI->getOperand(OpNum);
1334 O << markup("<imm:") << '#' << ARM_AM::getFPImmFloat(MO.getImm())
1338 void ARMInstPrinter::printVMOVModImmOperand(const MCInst *MI, unsigned OpNum,
1339 const MCSubtargetInfo &STI,
1341 unsigned EncodedImm = MI->getOperand(OpNum).getImm();
1343 uint64_t Val = ARM_AM::decodeVMOVModImm(EncodedImm, EltBits);
1344 O << markup("<imm:") << "#0x";
1349 void ARMInstPrinter::printImmPlusOneOperand(const MCInst *MI, unsigned OpNum,
1350 const MCSubtargetInfo &STI,
1352 unsigned Imm = MI->getOperand(OpNum).getImm();
1353 O << markup("<imm:") << "#" << formatImm(Imm + 1) << markup(">");
1356 void ARMInstPrinter::printRotImmOperand(const MCInst *MI, unsigned OpNum,
1357 const MCSubtargetInfo &STI,
1359 unsigned Imm = MI->getOperand(OpNum).getImm();
1362 assert(Imm <= 3 && "illegal ror immediate!");
1363 O << ", ror " << markup("<imm:") << "#" << 8 * Imm << markup(">");
1366 void ARMInstPrinter::printModImmOperand(const MCInst *MI, unsigned OpNum,
1367 const MCSubtargetInfo &STI,
1369 MCOperand Op = MI->getOperand(OpNum);
1371 // Support for fixups (MCFixup)
1373 return printOperand(MI, OpNum, STI, O);
1375 unsigned Bits = Op.getImm() & 0xFF;
1376 unsigned Rot = (Op.getImm() & 0xF00) >> 7;
1378 bool PrintUnsigned = false;
1379 switch (MI->getOpcode()) {
1381 // Movs to PC should be treated unsigned
1382 PrintUnsigned = (MI->getOperand(OpNum - 1).getReg() == ARM::PC);
1385 // Movs to special registers should be treated unsigned
1386 PrintUnsigned = true;
1390 int32_t Rotated = ARM_AM::rotr32(Bits, Rot);
1391 if (ARM_AM::getSOImmVal(Rotated) == Op.getImm()) {
1392 // #rot has the least possible value
1393 O << "#" << markup("<imm:");
1395 O << static_cast<uint32_t>(Rotated);
1402 // Explicit #bits, #rot implied
1403 O << "#" << markup("<imm:") << Bits << markup(">") << ", #" << markup("<imm:")
1404 << Rot << markup(">");
1407 void ARMInstPrinter::printFBits16(const MCInst *MI, unsigned OpNum,
1408 const MCSubtargetInfo &STI, raw_ostream &O) {
1409 O << markup("<imm:") << "#" << 16 - MI->getOperand(OpNum).getImm()
1413 void ARMInstPrinter::printFBits32(const MCInst *MI, unsigned OpNum,
1414 const MCSubtargetInfo &STI, raw_ostream &O) {
1415 O << markup("<imm:") << "#" << 32 - MI->getOperand(OpNum).getImm()
1419 void ARMInstPrinter::printVectorIndex(const MCInst *MI, unsigned OpNum,
1420 const MCSubtargetInfo &STI,
1422 O << "[" << MI->getOperand(OpNum).getImm() << "]";
1425 void ARMInstPrinter::printVectorListOne(const MCInst *MI, unsigned OpNum,
1426 const MCSubtargetInfo &STI,
1429 printRegName(O, MI->getOperand(OpNum).getReg());
1433 void ARMInstPrinter::printVectorListTwo(const MCInst *MI, unsigned OpNum,
1434 const MCSubtargetInfo &STI,
1436 unsigned Reg = MI->getOperand(OpNum).getReg();
1437 unsigned Reg0 = MRI.getSubReg(Reg, ARM::dsub_0);
1438 unsigned Reg1 = MRI.getSubReg(Reg, ARM::dsub_1);
1440 printRegName(O, Reg0);
1442 printRegName(O, Reg1);
1446 void ARMInstPrinter::printVectorListTwoSpaced(const MCInst *MI, unsigned OpNum,
1447 const MCSubtargetInfo &STI,
1449 unsigned Reg = MI->getOperand(OpNum).getReg();
1450 unsigned Reg0 = MRI.getSubReg(Reg, ARM::dsub_0);
1451 unsigned Reg1 = MRI.getSubReg(Reg, ARM::dsub_2);
1453 printRegName(O, Reg0);
1455 printRegName(O, Reg1);
1459 void ARMInstPrinter::printVectorListThree(const MCInst *MI, unsigned OpNum,
1460 const MCSubtargetInfo &STI,
1462 // Normally, it's not safe to use register enum values directly with
1463 // addition to get the next register, but for VFP registers, the
1464 // sort order is guaranteed because they're all of the form D<n>.
1466 printRegName(O, MI->getOperand(OpNum).getReg());
1468 printRegName(O, MI->getOperand(OpNum).getReg() + 1);
1470 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1474 void ARMInstPrinter::printVectorListFour(const MCInst *MI, unsigned OpNum,
1475 const MCSubtargetInfo &STI,
1477 // Normally, it's not safe to use register enum values directly with
1478 // addition to get the next register, but for VFP registers, the
1479 // sort order is guaranteed because they're all of the form D<n>.
1481 printRegName(O, MI->getOperand(OpNum).getReg());
1483 printRegName(O, MI->getOperand(OpNum).getReg() + 1);
1485 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1487 printRegName(O, MI->getOperand(OpNum).getReg() + 3);
1491 void ARMInstPrinter::printVectorListOneAllLanes(const MCInst *MI,
1493 const MCSubtargetInfo &STI,
1496 printRegName(O, MI->getOperand(OpNum).getReg());
1500 void ARMInstPrinter::printVectorListTwoAllLanes(const MCInst *MI,
1502 const MCSubtargetInfo &STI,
1504 unsigned Reg = MI->getOperand(OpNum).getReg();
1505 unsigned Reg0 = MRI.getSubReg(Reg, ARM::dsub_0);
1506 unsigned Reg1 = MRI.getSubReg(Reg, ARM::dsub_1);
1508 printRegName(O, Reg0);
1510 printRegName(O, Reg1);
1514 void ARMInstPrinter::printVectorListThreeAllLanes(const MCInst *MI,
1516 const MCSubtargetInfo &STI,
1518 // Normally, it's not safe to use register enum values directly with
1519 // addition to get the next register, but for VFP registers, the
1520 // sort order is guaranteed because they're all of the form D<n>.
1522 printRegName(O, MI->getOperand(OpNum).getReg());
1524 printRegName(O, MI->getOperand(OpNum).getReg() + 1);
1526 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1530 void ARMInstPrinter::printVectorListFourAllLanes(const MCInst *MI,
1532 const MCSubtargetInfo &STI,
1534 // Normally, it's not safe to use register enum values directly with
1535 // addition to get the next register, but for VFP registers, the
1536 // sort order is guaranteed because they're all of the form D<n>.
1538 printRegName(O, MI->getOperand(OpNum).getReg());
1540 printRegName(O, MI->getOperand(OpNum).getReg() + 1);
1542 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1544 printRegName(O, MI->getOperand(OpNum).getReg() + 3);
1548 void ARMInstPrinter::printVectorListTwoSpacedAllLanes(
1549 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1551 unsigned Reg = MI->getOperand(OpNum).getReg();
1552 unsigned Reg0 = MRI.getSubReg(Reg, ARM::dsub_0);
1553 unsigned Reg1 = MRI.getSubReg(Reg, ARM::dsub_2);
1555 printRegName(O, Reg0);
1557 printRegName(O, Reg1);
1561 void ARMInstPrinter::printVectorListThreeSpacedAllLanes(
1562 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1564 // Normally, it's not safe to use register enum values directly with
1565 // addition to get the next register, but for VFP registers, the
1566 // sort order is guaranteed because they're all of the form D<n>.
1568 printRegName(O, MI->getOperand(OpNum).getReg());
1570 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1572 printRegName(O, MI->getOperand(OpNum).getReg() + 4);
1576 void ARMInstPrinter::printVectorListFourSpacedAllLanes(
1577 const MCInst *MI, unsigned OpNum, const MCSubtargetInfo &STI,
1579 // Normally, it's not safe to use register enum values directly with
1580 // addition to get the next register, but for VFP registers, the
1581 // sort order is guaranteed because they're all of the form D<n>.
1583 printRegName(O, MI->getOperand(OpNum).getReg());
1585 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1587 printRegName(O, MI->getOperand(OpNum).getReg() + 4);
1589 printRegName(O, MI->getOperand(OpNum).getReg() + 6);
1593 void ARMInstPrinter::printVectorListThreeSpaced(const MCInst *MI,
1595 const MCSubtargetInfo &STI,
1597 // Normally, it's not safe to use register enum values directly with
1598 // addition to get the next register, but for VFP registers, the
1599 // sort order is guaranteed because they're all of the form D<n>.
1601 printRegName(O, MI->getOperand(OpNum).getReg());
1603 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1605 printRegName(O, MI->getOperand(OpNum).getReg() + 4);
1609 void ARMInstPrinter::printVectorListFourSpaced(const MCInst *MI, unsigned OpNum,
1610 const MCSubtargetInfo &STI,
1612 // Normally, it's not safe to use register enum values directly with
1613 // addition to get the next register, but for VFP registers, the
1614 // sort order is guaranteed because they're all of the form D<n>.
1616 printRegName(O, MI->getOperand(OpNum).getReg());
1618 printRegName(O, MI->getOperand(OpNum).getReg() + 2);
1620 printRegName(O, MI->getOperand(OpNum).getReg() + 4);
1622 printRegName(O, MI->getOperand(OpNum).getReg() + 6);
1626 template<unsigned NumRegs>
1627 void ARMInstPrinter::printMVEVectorList(const MCInst *MI, unsigned OpNum,
1628 const MCSubtargetInfo &STI,
1630 unsigned Reg = MI->getOperand(OpNum).getReg();
1631 const char *Prefix = "{";
1632 for (unsigned i = 0; i < NumRegs; i++) {
1634 printRegName(O, MRI.getSubReg(Reg, ARM::qsub_0 + i));
1640 template<int64_t Angle, int64_t Remainder>
1641 void ARMInstPrinter::printComplexRotationOp(const MCInst *MI, unsigned OpNo,
1642 const MCSubtargetInfo &STI,
1644 unsigned Val = MI->getOperand(OpNo).getImm();
1645 O << "#" << (Val * Angle) + Remainder;
1648 void ARMInstPrinter::printVPTPredicateOperand(const MCInst *MI, unsigned OpNum,
1649 const MCSubtargetInfo &STI,
1651 ARMVCC::VPTCodes CC = (ARMVCC::VPTCodes)MI->getOperand(OpNum).getImm();
1652 if (CC != ARMVCC::None)
1653 O << ARMVPTPredToString(CC);
1656 void ARMInstPrinter::printVPTMask(const MCInst *MI, unsigned OpNum,
1657 const MCSubtargetInfo &STI,
1659 // (3 - the number of trailing zeroes) is the number of them / else.
1660 unsigned Mask = MI->getOperand(OpNum).getImm();
1661 unsigned NumTZ = countTrailingZeros(Mask);
1662 assert(NumTZ <= 3 && "Invalid VPT mask!");
1663 for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
1664 bool T = ((Mask >> Pos) & 1) == 0;
1672 void ARMInstPrinter::printExpandedImmOperand(const MCInst *MI, unsigned OpNum,
1673 const MCSubtargetInfo &STI,
1675 uint32_t Val = MI->getOperand(OpNum).getImm();
1676 O << markup("<imm:") << "#0x";
1681 void ARMInstPrinter::printMveSaturateOp(const MCInst *MI, unsigned OpNum,
1682 const MCSubtargetInfo &STI,
1684 uint32_t Val = MI->getOperand(OpNum).getImm();
1685 assert(Val <= 1 && "Invalid MVE saturate operand");
1686 O << "#" << (Val == 1 ? 48 : 64);