1 //===-- ARMInstPrinter.cpp - Convert ARM MCInst to assembly syntax --------===//
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 class prints an ARM MCInst to a .s file.
12 //===----------------------------------------------------------------------===//
14 #define DEBUG_TYPE "asm-printer"
15 #include "ARMInstPrinter.h"
16 #include "MCTargetDesc/ARMBaseInfo.h"
17 #include "MCTargetDesc/ARMAddressingModes.h"
18 #include "llvm/MC/MCInst.h"
19 #include "llvm/MC/MCAsmInfo.h"
20 #include "llvm/MC/MCExpr.h"
21 #include "llvm/ADT/StringExtras.h"
22 #include "llvm/Support/raw_ostream.h"
25 #define GET_INSTRUCTION_NAME
26 #include "ARMGenAsmWriter.inc"
28 StringRef ARMInstPrinter::getOpcodeName(unsigned Opcode) const {
29 return getInstructionName(Opcode);
32 void ARMInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
33 OS << getRegisterName(RegNo);
36 void ARMInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
37 unsigned Opcode = MI->getOpcode();
39 // Check for MOVs and print canonical forms, instead.
40 if (Opcode == ARM::MOVsr) {
41 // FIXME: Thumb variants?
42 const MCOperand &Dst = MI->getOperand(0);
43 const MCOperand &MO1 = MI->getOperand(1);
44 const MCOperand &MO2 = MI->getOperand(2);
45 const MCOperand &MO3 = MI->getOperand(3);
47 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO3.getImm()));
48 printSBitModifierOperand(MI, 6, O);
49 printPredicateOperand(MI, 4, O);
51 O << '\t' << getRegisterName(Dst.getReg())
52 << ", " << getRegisterName(MO1.getReg());
54 O << ", " << getRegisterName(MO2.getReg());
55 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
59 if (Opcode == ARM::MOVsi) {
60 // FIXME: Thumb variants?
61 const MCOperand &Dst = MI->getOperand(0);
62 const MCOperand &MO1 = MI->getOperand(1);
63 const MCOperand &MO2 = MI->getOperand(2);
65 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO2.getImm()));
66 printSBitModifierOperand(MI, 5, O);
67 printPredicateOperand(MI, 3, O);
69 O << '\t' << getRegisterName(Dst.getReg())
70 << ", " << getRegisterName(MO1.getReg());
72 if (ARM_AM::getSORegShOp(MO2.getImm()) == ARM_AM::rrx)
75 O << ", #" << ARM_AM::getSORegOffset(MO2.getImm());
81 if ((Opcode == ARM::STMDB_UPD || Opcode == ARM::t2STMDB_UPD) &&
82 MI->getOperand(0).getReg() == ARM::SP) {
84 printPredicateOperand(MI, 2, O);
85 if (Opcode == ARM::t2STMDB_UPD)
88 printRegisterList(MI, 4, O);
93 if ((Opcode == ARM::LDMIA_UPD || Opcode == ARM::t2LDMIA_UPD) &&
94 MI->getOperand(0).getReg() == ARM::SP) {
96 printPredicateOperand(MI, 2, O);
97 if (Opcode == ARM::t2LDMIA_UPD)
100 printRegisterList(MI, 4, O);
105 if ((Opcode == ARM::VSTMSDB_UPD || Opcode == ARM::VSTMDDB_UPD) &&
106 MI->getOperand(0).getReg() == ARM::SP) {
107 O << '\t' << "vpush";
108 printPredicateOperand(MI, 2, O);
110 printRegisterList(MI, 4, O);
115 if ((Opcode == ARM::VLDMSIA_UPD || Opcode == ARM::VLDMDIA_UPD) &&
116 MI->getOperand(0).getReg() == ARM::SP) {
118 printPredicateOperand(MI, 2, O);
120 printRegisterList(MI, 4, O);
124 if (Opcode == ARM::tLDMIA || Opcode == ARM::tSTMIA) {
125 bool Writeback = true;
126 unsigned BaseReg = MI->getOperand(0).getReg();
127 for (unsigned i = 3; i < MI->getNumOperands(); ++i) {
128 if (MI->getOperand(i).getReg() == BaseReg)
132 if (Opcode == ARM::tLDMIA)
134 else if (Opcode == ARM::tSTMIA)
137 llvm_unreachable("Unknown opcode!");
139 printPredicateOperand(MI, 1, O);
140 O << '\t' << getRegisterName(BaseReg);
141 if (Writeback) O << "!";
143 printRegisterList(MI, 3, O);
147 printInstruction(MI, O);
150 void ARMInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
152 const MCOperand &Op = MI->getOperand(OpNo);
154 unsigned Reg = Op.getReg();
155 O << getRegisterName(Reg);
156 } else if (Op.isImm()) {
157 O << '#' << Op.getImm();
159 assert(Op.isExpr() && "unknown operand kind in printOperand");
164 // so_reg is a 4-operand unit corresponding to register forms of the A5.1
165 // "Addressing Mode 1 - Data-processing operands" forms. This includes:
167 // REG REG 0,SH_OPC - e.g. R5, ROR R3
168 // REG 0 IMM,SH_OPC - e.g. R5, LSL #3
169 void ARMInstPrinter::printSORegRegOperand(const MCInst *MI, unsigned OpNum,
171 const MCOperand &MO1 = MI->getOperand(OpNum);
172 const MCOperand &MO2 = MI->getOperand(OpNum+1);
173 const MCOperand &MO3 = MI->getOperand(OpNum+2);
175 O << getRegisterName(MO1.getReg());
177 // Print the shift opc.
178 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO3.getImm());
179 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
180 if (ShOpc == ARM_AM::rrx)
183 O << ' ' << getRegisterName(MO2.getReg());
184 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
187 void ARMInstPrinter::printSORegImmOperand(const MCInst *MI, unsigned OpNum,
189 const MCOperand &MO1 = MI->getOperand(OpNum);
190 const MCOperand &MO2 = MI->getOperand(OpNum+1);
192 O << getRegisterName(MO1.getReg());
194 // Print the shift opc.
195 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
196 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
197 if (ShOpc == ARM_AM::rrx)
199 O << " #" << ARM_AM::getSORegOffset(MO2.getImm());
203 //===--------------------------------------------------------------------===//
204 // Addressing Mode #2
205 //===--------------------------------------------------------------------===//
207 void ARMInstPrinter::printAM2PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
209 const MCOperand &MO1 = MI->getOperand(Op);
210 const MCOperand &MO2 = MI->getOperand(Op+1);
211 const MCOperand &MO3 = MI->getOperand(Op+2);
213 O << "[" << getRegisterName(MO1.getReg());
216 if (ARM_AM::getAM2Offset(MO3.getImm())) // Don't print +0.
218 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
219 << ARM_AM::getAM2Offset(MO3.getImm());
225 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
226 << getRegisterName(MO2.getReg());
228 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
230 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
235 void ARMInstPrinter::printAM2PostIndexOp(const MCInst *MI, unsigned Op,
237 const MCOperand &MO1 = MI->getOperand(Op);
238 const MCOperand &MO2 = MI->getOperand(Op+1);
239 const MCOperand &MO3 = MI->getOperand(Op+2);
241 O << "[" << getRegisterName(MO1.getReg()) << "], ";
244 unsigned ImmOffs = ARM_AM::getAM2Offset(MO3.getImm());
246 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
251 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
252 << getRegisterName(MO2.getReg());
254 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
256 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
260 void ARMInstPrinter::printAddrMode2Operand(const MCInst *MI, unsigned Op,
262 const MCOperand &MO1 = MI->getOperand(Op);
264 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
265 printOperand(MI, Op, O);
269 const MCOperand &MO3 = MI->getOperand(Op+2);
270 unsigned IdxMode = ARM_AM::getAM2IdxMode(MO3.getImm());
272 if (IdxMode == ARMII::IndexModePost) {
273 printAM2PostIndexOp(MI, Op, O);
276 printAM2PreOrOffsetIndexOp(MI, Op, O);
279 void ARMInstPrinter::printAddrMode2OffsetOperand(const MCInst *MI,
282 const MCOperand &MO1 = MI->getOperand(OpNum);
283 const MCOperand &MO2 = MI->getOperand(OpNum+1);
286 unsigned ImmOffs = ARM_AM::getAM2Offset(MO2.getImm());
288 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
293 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
294 << getRegisterName(MO1.getReg());
296 if (unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm()))
298 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO2.getImm()))
302 //===--------------------------------------------------------------------===//
303 // Addressing Mode #3
304 //===--------------------------------------------------------------------===//
306 void ARMInstPrinter::printAM3PostIndexOp(const MCInst *MI, unsigned Op,
308 const MCOperand &MO1 = MI->getOperand(Op);
309 const MCOperand &MO2 = MI->getOperand(Op+1);
310 const MCOperand &MO3 = MI->getOperand(Op+2);
312 O << "[" << getRegisterName(MO1.getReg()) << "], ";
315 O << (char)ARM_AM::getAM3Op(MO3.getImm())
316 << getRegisterName(MO2.getReg());
320 unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm());
322 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
326 void ARMInstPrinter::printAM3PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
328 const MCOperand &MO1 = MI->getOperand(Op);
329 const MCOperand &MO2 = MI->getOperand(Op+1);
330 const MCOperand &MO3 = MI->getOperand(Op+2);
332 O << '[' << getRegisterName(MO1.getReg());
335 O << ", " << getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
336 << getRegisterName(MO2.getReg()) << ']';
340 if (unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm()))
342 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
347 void ARMInstPrinter::printAddrMode3Operand(const MCInst *MI, unsigned Op,
349 const MCOperand &MO3 = MI->getOperand(Op+2);
350 unsigned IdxMode = ARM_AM::getAM3IdxMode(MO3.getImm());
352 if (IdxMode == ARMII::IndexModePost) {
353 printAM3PostIndexOp(MI, Op, O);
356 printAM3PreOrOffsetIndexOp(MI, Op, O);
359 void ARMInstPrinter::printAddrMode3OffsetOperand(const MCInst *MI,
362 const MCOperand &MO1 = MI->getOperand(OpNum);
363 const MCOperand &MO2 = MI->getOperand(OpNum+1);
366 O << getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
367 << getRegisterName(MO1.getReg());
371 unsigned ImmOffs = ARM_AM::getAM3Offset(MO2.getImm());
373 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
377 void ARMInstPrinter::printPostIdxImm8Operand(const MCInst *MI,
380 const MCOperand &MO = MI->getOperand(OpNum);
381 unsigned Imm = MO.getImm();
382 O << '#' << ((Imm & 256) ? "" : "-") << (Imm & 0xff);
385 void ARMInstPrinter::printPostIdxRegOperand(const MCInst *MI, unsigned OpNum,
387 const MCOperand &MO1 = MI->getOperand(OpNum);
388 const MCOperand &MO2 = MI->getOperand(OpNum+1);
390 O << getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
391 << getRegisterName(MO1.getReg());
394 void ARMInstPrinter::printPostIdxImm8s4Operand(const MCInst *MI,
397 const MCOperand &MO = MI->getOperand(OpNum);
398 unsigned Imm = MO.getImm();
399 O << '#' << ((Imm & 256) ? "" : "-") << ((Imm & 0xff) << 2);
403 void ARMInstPrinter::printLdStmModeOperand(const MCInst *MI, unsigned OpNum,
405 ARM_AM::AMSubMode Mode = ARM_AM::getAM4SubMode(MI->getOperand(OpNum)
407 O << ARM_AM::getAMSubModeStr(Mode);
410 void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
412 const MCOperand &MO1 = MI->getOperand(OpNum);
413 const MCOperand &MO2 = MI->getOperand(OpNum+1);
415 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
416 printOperand(MI, OpNum, O);
420 O << "[" << getRegisterName(MO1.getReg());
422 if (unsigned ImmOffs = ARM_AM::getAM5Offset(MO2.getImm())) {
424 << ARM_AM::getAddrOpcStr(ARM_AM::getAM5Op(MO2.getImm()))
430 void ARMInstPrinter::printAddrMode6Operand(const MCInst *MI, unsigned OpNum,
432 const MCOperand &MO1 = MI->getOperand(OpNum);
433 const MCOperand &MO2 = MI->getOperand(OpNum+1);
435 O << "[" << getRegisterName(MO1.getReg());
437 // FIXME: Both darwin as and GNU as violate ARM docs here.
438 O << ", :" << (MO2.getImm() << 3);
443 void ARMInstPrinter::printAddrMode7Operand(const MCInst *MI, unsigned OpNum,
445 const MCOperand &MO1 = MI->getOperand(OpNum);
446 O << "[" << getRegisterName(MO1.getReg()) << "]";
449 void ARMInstPrinter::printAddrMode6OffsetOperand(const MCInst *MI,
452 const MCOperand &MO = MI->getOperand(OpNum);
453 if (MO.getReg() == 0)
456 O << ", " << getRegisterName(MO.getReg());
459 void ARMInstPrinter::printBitfieldInvMaskImmOperand(const MCInst *MI,
462 const MCOperand &MO = MI->getOperand(OpNum);
463 uint32_t v = ~MO.getImm();
464 int32_t lsb = CountTrailingZeros_32(v);
465 int32_t width = (32 - CountLeadingZeros_32 (v)) - lsb;
466 assert(MO.isImm() && "Not a valid bf_inv_mask_imm value!");
467 O << '#' << lsb << ", #" << width;
470 void ARMInstPrinter::printMemBOption(const MCInst *MI, unsigned OpNum,
472 unsigned val = MI->getOperand(OpNum).getImm();
473 O << ARM_MB::MemBOptToString(val);
476 void ARMInstPrinter::printShiftImmOperand(const MCInst *MI, unsigned OpNum,
478 unsigned ShiftOp = MI->getOperand(OpNum).getImm();
479 bool isASR = (ShiftOp & (1 << 5)) != 0;
480 unsigned Amt = ShiftOp & 0x1f;
482 O << ", asr #" << (Amt == 0 ? 32 : Amt);
484 O << ", lsl #" << Amt;
487 void ARMInstPrinter::printPKHLSLShiftImm(const MCInst *MI, unsigned OpNum,
489 unsigned Imm = MI->getOperand(OpNum).getImm();
492 assert(Imm > 0 && Imm < 32 && "Invalid PKH shift immediate value!");
493 O << ", lsl #" << Imm;
496 void ARMInstPrinter::printPKHASRShiftImm(const MCInst *MI, unsigned OpNum,
498 unsigned Imm = MI->getOperand(OpNum).getImm();
499 // A shift amount of 32 is encoded as 0.
502 assert(Imm > 0 && Imm <= 32 && "Invalid PKH shift immediate value!");
503 O << ", asr #" << Imm;
506 void ARMInstPrinter::printRegisterList(const MCInst *MI, unsigned OpNum,
509 for (unsigned i = OpNum, e = MI->getNumOperands(); i != e; ++i) {
510 if (i != OpNum) O << ", ";
511 O << getRegisterName(MI->getOperand(i).getReg());
516 void ARMInstPrinter::printSetendOperand(const MCInst *MI, unsigned OpNum,
518 const MCOperand &Op = MI->getOperand(OpNum);
525 void ARMInstPrinter::printCPSIMod(const MCInst *MI, unsigned OpNum,
527 const MCOperand &Op = MI->getOperand(OpNum);
528 O << ARM_PROC::IModToString(Op.getImm());
531 void ARMInstPrinter::printCPSIFlag(const MCInst *MI, unsigned OpNum,
533 const MCOperand &Op = MI->getOperand(OpNum);
534 unsigned IFlags = Op.getImm();
535 for (int i=2; i >= 0; --i)
536 if (IFlags & (1 << i))
537 O << ARM_PROC::IFlagsToString(1 << i);
540 void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
542 const MCOperand &Op = MI->getOperand(OpNum);
543 unsigned SpecRegRBit = Op.getImm() >> 4;
544 unsigned Mask = Op.getImm() & 0xf;
546 // As special cases, CPSR_f, CPSR_s and CPSR_fs prefer printing as
547 // APSR_nzcvq, APSR_g and APSRnzcvqg, respectively.
548 if (!SpecRegRBit && (Mask == 8 || Mask == 4 || Mask == 12)) {
552 case 4: O << "g"; return;
553 case 8: O << "nzcvq"; return;
554 case 12: O << "nzcvqg"; return;
556 llvm_unreachable("Unexpected mask value!");
566 if (Mask & 8) O << 'f';
567 if (Mask & 4) O << 's';
568 if (Mask & 2) O << 'x';
569 if (Mask & 1) O << 'c';
573 void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum,
575 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
577 O << ARMCondCodeToString(CC);
580 void ARMInstPrinter::printMandatoryPredicateOperand(const MCInst *MI,
583 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
584 O << ARMCondCodeToString(CC);
587 void ARMInstPrinter::printSBitModifierOperand(const MCInst *MI, unsigned OpNum,
589 if (MI->getOperand(OpNum).getReg()) {
590 assert(MI->getOperand(OpNum).getReg() == ARM::CPSR &&
591 "Expect ARM CPSR register!");
596 void ARMInstPrinter::printNoHashImmediate(const MCInst *MI, unsigned OpNum,
598 O << MI->getOperand(OpNum).getImm();
601 void ARMInstPrinter::printPImmediate(const MCInst *MI, unsigned OpNum,
603 O << "p" << MI->getOperand(OpNum).getImm();
606 void ARMInstPrinter::printCImmediate(const MCInst *MI, unsigned OpNum,
608 O << "c" << MI->getOperand(OpNum).getImm();
611 void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum,
613 llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
616 void ARMInstPrinter::printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum,
618 O << "#" << MI->getOperand(OpNum).getImm() * 4;
621 void ARMInstPrinter::printThumbITMask(const MCInst *MI, unsigned OpNum,
623 // (3 - the number of trailing zeros) is the number of then / else.
624 unsigned Mask = MI->getOperand(OpNum).getImm();
625 unsigned CondBit0 = Mask >> 4 & 1;
626 unsigned NumTZ = CountTrailingZeros_32(Mask);
627 assert(NumTZ <= 3 && "Invalid IT mask!");
628 for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
629 bool T = ((Mask >> Pos) & 1) == CondBit0;
637 void ARMInstPrinter::printThumbAddrModeRROperand(const MCInst *MI, unsigned Op,
639 const MCOperand &MO1 = MI->getOperand(Op);
640 const MCOperand &MO2 = MI->getOperand(Op + 1);
642 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
643 printOperand(MI, Op, O);
647 O << "[" << getRegisterName(MO1.getReg());
648 if (unsigned RegNum = MO2.getReg())
649 O << ", " << getRegisterName(RegNum);
653 void ARMInstPrinter::printThumbAddrModeImm5SOperand(const MCInst *MI,
657 const MCOperand &MO1 = MI->getOperand(Op);
658 const MCOperand &MO2 = MI->getOperand(Op + 1);
660 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
661 printOperand(MI, Op, O);
665 O << "[" << getRegisterName(MO1.getReg());
666 if (unsigned ImmOffs = MO2.getImm())
667 O << ", #" << ImmOffs * Scale;
671 void ARMInstPrinter::printThumbAddrModeImm5S1Operand(const MCInst *MI,
674 printThumbAddrModeImm5SOperand(MI, Op, O, 1);
677 void ARMInstPrinter::printThumbAddrModeImm5S2Operand(const MCInst *MI,
680 printThumbAddrModeImm5SOperand(MI, Op, O, 2);
683 void ARMInstPrinter::printThumbAddrModeImm5S4Operand(const MCInst *MI,
686 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
689 void ARMInstPrinter::printThumbAddrModeSPOperand(const MCInst *MI, unsigned Op,
691 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
694 // Constant shifts t2_so_reg is a 2-operand unit corresponding to the Thumb2
695 // register with shift forms.
697 // REG IMM, SH_OPC - e.g. R5, LSL #3
698 void ARMInstPrinter::printT2SOOperand(const MCInst *MI, unsigned OpNum,
700 const MCOperand &MO1 = MI->getOperand(OpNum);
701 const MCOperand &MO2 = MI->getOperand(OpNum+1);
703 unsigned Reg = MO1.getReg();
704 O << getRegisterName(Reg);
706 // Print the shift opc.
707 assert(MO2.isImm() && "Not a valid t2_so_reg value!");
708 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
709 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
710 if (ShOpc != ARM_AM::rrx)
711 O << " #" << ARM_AM::getSORegOffset(MO2.getImm());
714 void ARMInstPrinter::printAddrModeImm12Operand(const MCInst *MI, unsigned OpNum,
716 const MCOperand &MO1 = MI->getOperand(OpNum);
717 const MCOperand &MO2 = MI->getOperand(OpNum+1);
719 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
720 printOperand(MI, OpNum, O);
724 O << "[" << getRegisterName(MO1.getReg());
726 int32_t OffImm = (int32_t)MO2.getImm();
727 bool isSub = OffImm < 0;
728 // Special value for #-0. All others are normal.
729 if (OffImm == INT32_MIN)
732 O << ", #-" << -OffImm;
734 O << ", #" << OffImm;
738 void ARMInstPrinter::printT2AddrModeImm8Operand(const MCInst *MI,
741 const MCOperand &MO1 = MI->getOperand(OpNum);
742 const MCOperand &MO2 = MI->getOperand(OpNum+1);
744 O << "[" << getRegisterName(MO1.getReg());
746 int32_t OffImm = (int32_t)MO2.getImm();
749 O << ", #-" << -OffImm;
751 O << ", #" << OffImm;
755 void ARMInstPrinter::printT2AddrModeImm8s4Operand(const MCInst *MI,
758 const MCOperand &MO1 = MI->getOperand(OpNum);
759 const MCOperand &MO2 = MI->getOperand(OpNum+1);
761 O << "[" << getRegisterName(MO1.getReg());
763 int32_t OffImm = (int32_t)MO2.getImm() / 4;
766 O << ", #-" << -OffImm * 4;
768 O << ", #" << OffImm * 4;
772 void ARMInstPrinter::printT2AddrModeImm8OffsetOperand(const MCInst *MI,
775 const MCOperand &MO1 = MI->getOperand(OpNum);
776 int32_t OffImm = (int32_t)MO1.getImm();
779 O << "#-" << -OffImm;
784 void ARMInstPrinter::printT2AddrModeImm8s4OffsetOperand(const MCInst *MI,
787 const MCOperand &MO1 = MI->getOperand(OpNum);
788 int32_t OffImm = (int32_t)MO1.getImm() / 4;
791 O << "#-" << -OffImm * 4;
793 O << "#" << OffImm * 4;
796 void ARMInstPrinter::printT2AddrModeSoRegOperand(const MCInst *MI,
799 const MCOperand &MO1 = MI->getOperand(OpNum);
800 const MCOperand &MO2 = MI->getOperand(OpNum+1);
801 const MCOperand &MO3 = MI->getOperand(OpNum+2);
803 O << "[" << getRegisterName(MO1.getReg());
805 assert(MO2.getReg() && "Invalid so_reg load / store address!");
806 O << ", " << getRegisterName(MO2.getReg());
808 unsigned ShAmt = MO3.getImm();
810 assert(ShAmt <= 3 && "Not a valid Thumb2 addressing mode!");
811 O << ", lsl #" << ShAmt;
816 void ARMInstPrinter::printVFPf32ImmOperand(const MCInst *MI, unsigned OpNum,
818 const MCOperand &MO = MI->getOperand(OpNum);
821 O << (float)MO.getFPImm();
828 FPUnion.I = MO.getImm();
833 void ARMInstPrinter::printVFPf64ImmOperand(const MCInst *MI, unsigned OpNum,
835 const MCOperand &MO = MI->getOperand(OpNum);
840 // We expect the binary encoding of a floating point number here.
846 FPUnion.I = MO.getImm();
851 void ARMInstPrinter::printNEONModImmOperand(const MCInst *MI, unsigned OpNum,
853 unsigned EncodedImm = MI->getOperand(OpNum).getImm();
855 uint64_t Val = ARM_AM::decodeNEONModImm(EncodedImm, EltBits);
856 O << "#0x" << utohexstr(Val);
859 void ARMInstPrinter::printImmPlusOneOperand(const MCInst *MI, unsigned OpNum,
861 unsigned Imm = MI->getOperand(OpNum).getImm();
865 void ARMInstPrinter::printRotImmOperand(const MCInst *MI, unsigned OpNum,
867 unsigned Imm = MI->getOperand(OpNum).getImm();
872 default: assert (0 && "illegal ror immediate!");
873 case 1: O << "8\n"; break;
874 case 2: O << "16\n"; break;
875 case 3: O << "24\n"; break;