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 /// translateShiftImm - Convert shift immediate from 0-31 to 1-32 for printing.
30 /// getSORegOffset returns an integer from 0-31, but '0' should actually be printed
31 /// 32 as the immediate shouldbe within the range 1-32.
32 static unsigned translateShiftImm(unsigned imm) {
39 ARMInstPrinter::ARMInstPrinter(const MCAsmInfo &MAI,
40 const MCSubtargetInfo &STI) :
42 // Initialize the set of available features.
43 setAvailableFeatures(STI.getFeatureBits());
46 StringRef ARMInstPrinter::getOpcodeName(unsigned Opcode) const {
47 return getInstructionName(Opcode);
50 void ARMInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
51 OS << getRegisterName(RegNo);
54 void ARMInstPrinter::printInst(const MCInst *MI, raw_ostream &O) {
55 unsigned Opcode = MI->getOpcode();
57 // Check for MOVs and print canonical forms, instead.
58 if (Opcode == ARM::MOVsr) {
59 // FIXME: Thumb variants?
60 const MCOperand &Dst = MI->getOperand(0);
61 const MCOperand &MO1 = MI->getOperand(1);
62 const MCOperand &MO2 = MI->getOperand(2);
63 const MCOperand &MO3 = MI->getOperand(3);
65 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO3.getImm()));
66 printSBitModifierOperand(MI, 6, O);
67 printPredicateOperand(MI, 4, O);
69 O << '\t' << getRegisterName(Dst.getReg())
70 << ", " << getRegisterName(MO1.getReg());
72 O << ", " << getRegisterName(MO2.getReg());
73 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
77 if (Opcode == ARM::MOVsi) {
78 // FIXME: Thumb variants?
79 const MCOperand &Dst = MI->getOperand(0);
80 const MCOperand &MO1 = MI->getOperand(1);
81 const MCOperand &MO2 = MI->getOperand(2);
83 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO2.getImm()));
84 printSBitModifierOperand(MI, 5, O);
85 printPredicateOperand(MI, 3, O);
87 O << '\t' << getRegisterName(Dst.getReg())
88 << ", " << getRegisterName(MO1.getReg());
90 if (ARM_AM::getSORegShOp(MO2.getImm()) == ARM_AM::rrx)
93 O << ", #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
99 if ((Opcode == ARM::STMDB_UPD || Opcode == ARM::t2STMDB_UPD) &&
100 MI->getOperand(0).getReg() == ARM::SP) {
102 printPredicateOperand(MI, 2, O);
103 if (Opcode == ARM::t2STMDB_UPD)
106 printRegisterList(MI, 4, O);
109 if (Opcode == ARM::STR_PRE_IMM && MI->getOperand(2).getReg() == ARM::SP &&
110 MI->getOperand(3).getImm() == -4) {
112 printPredicateOperand(MI, 4, O);
113 O << "\t{" << getRegisterName(MI->getOperand(1).getReg()) << "}";
118 if ((Opcode == ARM::LDMIA_UPD || Opcode == ARM::t2LDMIA_UPD) &&
119 MI->getOperand(0).getReg() == ARM::SP) {
121 printPredicateOperand(MI, 2, O);
122 if (Opcode == ARM::t2LDMIA_UPD)
125 printRegisterList(MI, 4, O);
128 if (Opcode == ARM::LDR_POST_IMM && MI->getOperand(2).getReg() == ARM::SP &&
129 MI->getOperand(4).getImm() == 4) {
131 printPredicateOperand(MI, 5, O);
132 O << "\t{" << getRegisterName(MI->getOperand(0).getReg()) << "}";
138 if ((Opcode == ARM::VSTMSDB_UPD || Opcode == ARM::VSTMDDB_UPD) &&
139 MI->getOperand(0).getReg() == ARM::SP) {
140 O << '\t' << "vpush";
141 printPredicateOperand(MI, 2, O);
143 printRegisterList(MI, 4, O);
148 if ((Opcode == ARM::VLDMSIA_UPD || Opcode == ARM::VLDMDIA_UPD) &&
149 MI->getOperand(0).getReg() == ARM::SP) {
151 printPredicateOperand(MI, 2, O);
153 printRegisterList(MI, 4, O);
157 if (Opcode == ARM::tLDMIA) {
158 bool Writeback = true;
159 unsigned BaseReg = MI->getOperand(0).getReg();
160 for (unsigned i = 3; i < MI->getNumOperands(); ++i) {
161 if (MI->getOperand(i).getReg() == BaseReg)
167 printPredicateOperand(MI, 1, O);
168 O << '\t' << getRegisterName(BaseReg);
169 if (Writeback) O << "!";
171 printRegisterList(MI, 3, O);
176 if (Opcode == ARM::tMOVr && MI->getOperand(0).getReg() == ARM::R8 &&
177 MI->getOperand(1).getReg() == ARM::R8) {
179 printPredicateOperand(MI, 2, O);
183 printInstruction(MI, O);
186 void ARMInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
188 const MCOperand &Op = MI->getOperand(OpNo);
190 unsigned Reg = Op.getReg();
191 O << getRegisterName(Reg);
192 } else if (Op.isImm()) {
193 O << '#' << Op.getImm();
195 assert(Op.isExpr() && "unknown operand kind in printOperand");
200 // so_reg is a 4-operand unit corresponding to register forms of the A5.1
201 // "Addressing Mode 1 - Data-processing operands" forms. This includes:
203 // REG REG 0,SH_OPC - e.g. R5, ROR R3
204 // REG 0 IMM,SH_OPC - e.g. R5, LSL #3
205 void ARMInstPrinter::printSORegRegOperand(const MCInst *MI, unsigned OpNum,
207 const MCOperand &MO1 = MI->getOperand(OpNum);
208 const MCOperand &MO2 = MI->getOperand(OpNum+1);
209 const MCOperand &MO3 = MI->getOperand(OpNum+2);
211 O << getRegisterName(MO1.getReg());
213 // Print the shift opc.
214 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO3.getImm());
215 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
216 if (ShOpc == ARM_AM::rrx)
219 O << ' ' << getRegisterName(MO2.getReg());
220 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
223 void ARMInstPrinter::printSORegImmOperand(const MCInst *MI, unsigned OpNum,
225 const MCOperand &MO1 = MI->getOperand(OpNum);
226 const MCOperand &MO2 = MI->getOperand(OpNum+1);
228 O << getRegisterName(MO1.getReg());
230 // Print the shift opc.
231 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
232 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
233 if (ShOpc == ARM_AM::rrx)
235 O << " #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
239 //===--------------------------------------------------------------------===//
240 // Addressing Mode #2
241 //===--------------------------------------------------------------------===//
243 void ARMInstPrinter::printAM2PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
245 const MCOperand &MO1 = MI->getOperand(Op);
246 const MCOperand &MO2 = MI->getOperand(Op+1);
247 const MCOperand &MO3 = MI->getOperand(Op+2);
249 O << "[" << getRegisterName(MO1.getReg());
252 if (ARM_AM::getAM2Offset(MO3.getImm())) // Don't print +0.
254 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
255 << ARM_AM::getAM2Offset(MO3.getImm());
261 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
262 << getRegisterName(MO2.getReg());
264 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
266 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
271 void ARMInstPrinter::printAM2PostIndexOp(const MCInst *MI, unsigned Op,
273 const MCOperand &MO1 = MI->getOperand(Op);
274 const MCOperand &MO2 = MI->getOperand(Op+1);
275 const MCOperand &MO3 = MI->getOperand(Op+2);
277 O << "[" << getRegisterName(MO1.getReg()) << "], ";
280 unsigned ImmOffs = ARM_AM::getAM2Offset(MO3.getImm());
282 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
287 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
288 << getRegisterName(MO2.getReg());
290 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
292 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
296 void ARMInstPrinter::printAddrMode2Operand(const MCInst *MI, unsigned Op,
298 const MCOperand &MO1 = MI->getOperand(Op);
300 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
301 printOperand(MI, Op, O);
305 const MCOperand &MO3 = MI->getOperand(Op+2);
306 unsigned IdxMode = ARM_AM::getAM2IdxMode(MO3.getImm());
308 if (IdxMode == ARMII::IndexModePost) {
309 printAM2PostIndexOp(MI, Op, O);
312 printAM2PreOrOffsetIndexOp(MI, Op, O);
315 void ARMInstPrinter::printAddrMode2OffsetOperand(const MCInst *MI,
318 const MCOperand &MO1 = MI->getOperand(OpNum);
319 const MCOperand &MO2 = MI->getOperand(OpNum+1);
322 unsigned ImmOffs = ARM_AM::getAM2Offset(MO2.getImm());
324 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
329 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
330 << getRegisterName(MO1.getReg());
332 if (unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm()))
334 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO2.getImm()))
338 //===--------------------------------------------------------------------===//
339 // Addressing Mode #3
340 //===--------------------------------------------------------------------===//
342 void ARMInstPrinter::printAM3PostIndexOp(const MCInst *MI, unsigned Op,
344 const MCOperand &MO1 = MI->getOperand(Op);
345 const MCOperand &MO2 = MI->getOperand(Op+1);
346 const MCOperand &MO3 = MI->getOperand(Op+2);
348 O << "[" << getRegisterName(MO1.getReg()) << "], ";
351 O << (char)ARM_AM::getAM3Op(MO3.getImm())
352 << getRegisterName(MO2.getReg());
356 unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm());
358 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
362 void ARMInstPrinter::printAM3PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
364 const MCOperand &MO1 = MI->getOperand(Op);
365 const MCOperand &MO2 = MI->getOperand(Op+1);
366 const MCOperand &MO3 = MI->getOperand(Op+2);
368 O << '[' << getRegisterName(MO1.getReg());
371 O << ", " << getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
372 << getRegisterName(MO2.getReg()) << ']';
376 if (unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm()))
378 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
383 void ARMInstPrinter::printAddrMode3Operand(const MCInst *MI, unsigned Op,
385 const MCOperand &MO3 = MI->getOperand(Op+2);
386 unsigned IdxMode = ARM_AM::getAM3IdxMode(MO3.getImm());
388 if (IdxMode == ARMII::IndexModePost) {
389 printAM3PostIndexOp(MI, Op, O);
392 printAM3PreOrOffsetIndexOp(MI, Op, O);
395 void ARMInstPrinter::printAddrMode3OffsetOperand(const MCInst *MI,
398 const MCOperand &MO1 = MI->getOperand(OpNum);
399 const MCOperand &MO2 = MI->getOperand(OpNum+1);
402 O << getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
403 << getRegisterName(MO1.getReg());
407 unsigned ImmOffs = ARM_AM::getAM3Offset(MO2.getImm());
409 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
413 void ARMInstPrinter::printPostIdxImm8Operand(const MCInst *MI,
416 const MCOperand &MO = MI->getOperand(OpNum);
417 unsigned Imm = MO.getImm();
418 O << '#' << ((Imm & 256) ? "" : "-") << (Imm & 0xff);
421 void ARMInstPrinter::printPostIdxRegOperand(const MCInst *MI, unsigned OpNum,
423 const MCOperand &MO1 = MI->getOperand(OpNum);
424 const MCOperand &MO2 = MI->getOperand(OpNum+1);
426 O << (MO2.getImm() ? "" : "-") << getRegisterName(MO1.getReg());
429 void ARMInstPrinter::printPostIdxImm8s4Operand(const MCInst *MI,
432 const MCOperand &MO = MI->getOperand(OpNum);
433 unsigned Imm = MO.getImm();
434 O << '#' << ((Imm & 256) ? "" : "-") << ((Imm & 0xff) << 2);
438 void ARMInstPrinter::printLdStmModeOperand(const MCInst *MI, unsigned OpNum,
440 ARM_AM::AMSubMode Mode = ARM_AM::getAM4SubMode(MI->getOperand(OpNum)
442 O << ARM_AM::getAMSubModeStr(Mode);
445 void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
447 const MCOperand &MO1 = MI->getOperand(OpNum);
448 const MCOperand &MO2 = MI->getOperand(OpNum+1);
450 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
451 printOperand(MI, OpNum, O);
455 O << "[" << getRegisterName(MO1.getReg());
457 unsigned ImmOffs = ARM_AM::getAM5Offset(MO2.getImm());
458 unsigned Op = ARM_AM::getAM5Op(MO2.getImm());
459 if (ImmOffs || Op == ARM_AM::sub) {
461 << ARM_AM::getAddrOpcStr(ARM_AM::getAM5Op(MO2.getImm()))
467 void ARMInstPrinter::printAddrMode6Operand(const MCInst *MI, unsigned OpNum,
469 const MCOperand &MO1 = MI->getOperand(OpNum);
470 const MCOperand &MO2 = MI->getOperand(OpNum+1);
472 O << "[" << getRegisterName(MO1.getReg());
474 // FIXME: Both darwin as and GNU as violate ARM docs here.
475 O << ", :" << (MO2.getImm() << 3);
480 void ARMInstPrinter::printAddrMode7Operand(const MCInst *MI, unsigned OpNum,
482 const MCOperand &MO1 = MI->getOperand(OpNum);
483 O << "[" << getRegisterName(MO1.getReg()) << "]";
486 void ARMInstPrinter::printAddrMode6OffsetOperand(const MCInst *MI,
489 const MCOperand &MO = MI->getOperand(OpNum);
490 if (MO.getReg() == 0)
493 O << ", " << getRegisterName(MO.getReg());
496 void ARMInstPrinter::printBitfieldInvMaskImmOperand(const MCInst *MI,
499 const MCOperand &MO = MI->getOperand(OpNum);
500 uint32_t v = ~MO.getImm();
501 int32_t lsb = CountTrailingZeros_32(v);
502 int32_t width = (32 - CountLeadingZeros_32 (v)) - lsb;
503 assert(MO.isImm() && "Not a valid bf_inv_mask_imm value!");
504 O << '#' << lsb << ", #" << width;
507 void ARMInstPrinter::printMemBOption(const MCInst *MI, unsigned OpNum,
509 unsigned val = MI->getOperand(OpNum).getImm();
510 O << ARM_MB::MemBOptToString(val);
513 void ARMInstPrinter::printShiftImmOperand(const MCInst *MI, unsigned OpNum,
515 unsigned ShiftOp = MI->getOperand(OpNum).getImm();
516 bool isASR = (ShiftOp & (1 << 5)) != 0;
517 unsigned Amt = ShiftOp & 0x1f;
519 O << ", asr #" << (Amt == 0 ? 32 : Amt);
521 O << ", lsl #" << Amt;
524 void ARMInstPrinter::printPKHLSLShiftImm(const MCInst *MI, unsigned OpNum,
526 unsigned Imm = MI->getOperand(OpNum).getImm();
529 assert(Imm > 0 && Imm < 32 && "Invalid PKH shift immediate value!");
530 O << ", lsl #" << Imm;
533 void ARMInstPrinter::printPKHASRShiftImm(const MCInst *MI, unsigned OpNum,
535 unsigned Imm = MI->getOperand(OpNum).getImm();
536 // A shift amount of 32 is encoded as 0.
539 assert(Imm > 0 && Imm <= 32 && "Invalid PKH shift immediate value!");
540 O << ", asr #" << Imm;
543 void ARMInstPrinter::printRegisterList(const MCInst *MI, unsigned OpNum,
546 for (unsigned i = OpNum, e = MI->getNumOperands(); i != e; ++i) {
547 if (i != OpNum) O << ", ";
548 O << getRegisterName(MI->getOperand(i).getReg());
553 void ARMInstPrinter::printSetendOperand(const MCInst *MI, unsigned OpNum,
555 const MCOperand &Op = MI->getOperand(OpNum);
562 void ARMInstPrinter::printCPSIMod(const MCInst *MI, unsigned OpNum,
564 const MCOperand &Op = MI->getOperand(OpNum);
565 O << ARM_PROC::IModToString(Op.getImm());
568 void ARMInstPrinter::printCPSIFlag(const MCInst *MI, unsigned OpNum,
570 const MCOperand &Op = MI->getOperand(OpNum);
571 unsigned IFlags = Op.getImm();
572 for (int i=2; i >= 0; --i)
573 if (IFlags & (1 << i))
574 O << ARM_PROC::IFlagsToString(1 << i);
577 void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
579 const MCOperand &Op = MI->getOperand(OpNum);
580 unsigned SpecRegRBit = Op.getImm() >> 4;
581 unsigned Mask = Op.getImm() & 0xf;
583 // As special cases, CPSR_f, CPSR_s and CPSR_fs prefer printing as
584 // APSR_nzcvq, APSR_g and APSRnzcvqg, respectively.
585 if (!SpecRegRBit && (Mask == 8 || Mask == 4 || Mask == 12)) {
589 case 4: O << "g"; return;
590 case 8: O << "nzcvq"; return;
591 case 12: O << "nzcvqg"; return;
593 llvm_unreachable("Unexpected mask value!");
603 if (Mask & 8) O << 'f';
604 if (Mask & 4) O << 's';
605 if (Mask & 2) O << 'x';
606 if (Mask & 1) O << 'c';
610 void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum,
612 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
614 O << ARMCondCodeToString(CC);
617 void ARMInstPrinter::printMandatoryPredicateOperand(const MCInst *MI,
620 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
621 O << ARMCondCodeToString(CC);
624 void ARMInstPrinter::printSBitModifierOperand(const MCInst *MI, unsigned OpNum,
626 if (MI->getOperand(OpNum).getReg()) {
627 assert(MI->getOperand(OpNum).getReg() == ARM::CPSR &&
628 "Expect ARM CPSR register!");
633 void ARMInstPrinter::printNoHashImmediate(const MCInst *MI, unsigned OpNum,
635 O << MI->getOperand(OpNum).getImm();
638 void ARMInstPrinter::printPImmediate(const MCInst *MI, unsigned OpNum,
640 O << "p" << MI->getOperand(OpNum).getImm();
643 void ARMInstPrinter::printCImmediate(const MCInst *MI, unsigned OpNum,
645 O << "c" << MI->getOperand(OpNum).getImm();
648 void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum,
650 llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
653 void ARMInstPrinter::printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum,
655 O << "#" << MI->getOperand(OpNum).getImm() * 4;
658 void ARMInstPrinter::printThumbSRImm(const MCInst *MI, unsigned OpNum,
660 unsigned Imm = MI->getOperand(OpNum).getImm();
661 O << "#" << (Imm == 0 ? 32 : Imm);
664 void ARMInstPrinter::printThumbITMask(const MCInst *MI, unsigned OpNum,
666 // (3 - the number of trailing zeros) is the number of then / else.
667 unsigned Mask = MI->getOperand(OpNum).getImm();
668 unsigned CondBit0 = Mask >> 4 & 1;
669 unsigned NumTZ = CountTrailingZeros_32(Mask);
670 assert(NumTZ <= 3 && "Invalid IT mask!");
671 for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
672 bool T = ((Mask >> Pos) & 1) == CondBit0;
680 void ARMInstPrinter::printThumbAddrModeRROperand(const MCInst *MI, unsigned Op,
682 const MCOperand &MO1 = MI->getOperand(Op);
683 const MCOperand &MO2 = MI->getOperand(Op + 1);
685 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
686 printOperand(MI, Op, O);
690 O << "[" << getRegisterName(MO1.getReg());
691 if (unsigned RegNum = MO2.getReg())
692 O << ", " << getRegisterName(RegNum);
696 void ARMInstPrinter::printThumbAddrModeImm5SOperand(const MCInst *MI,
700 const MCOperand &MO1 = MI->getOperand(Op);
701 const MCOperand &MO2 = MI->getOperand(Op + 1);
703 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
704 printOperand(MI, Op, O);
708 O << "[" << getRegisterName(MO1.getReg());
709 if (unsigned ImmOffs = MO2.getImm())
710 O << ", #" << ImmOffs * Scale;
714 void ARMInstPrinter::printThumbAddrModeImm5S1Operand(const MCInst *MI,
717 printThumbAddrModeImm5SOperand(MI, Op, O, 1);
720 void ARMInstPrinter::printThumbAddrModeImm5S2Operand(const MCInst *MI,
723 printThumbAddrModeImm5SOperand(MI, Op, O, 2);
726 void ARMInstPrinter::printThumbAddrModeImm5S4Operand(const MCInst *MI,
729 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
732 void ARMInstPrinter::printThumbAddrModeSPOperand(const MCInst *MI, unsigned Op,
734 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
737 // Constant shifts t2_so_reg is a 2-operand unit corresponding to the Thumb2
738 // register with shift forms.
740 // REG IMM, SH_OPC - e.g. R5, LSL #3
741 void ARMInstPrinter::printT2SOOperand(const MCInst *MI, unsigned OpNum,
743 const MCOperand &MO1 = MI->getOperand(OpNum);
744 const MCOperand &MO2 = MI->getOperand(OpNum+1);
746 unsigned Reg = MO1.getReg();
747 O << getRegisterName(Reg);
749 // Print the shift opc.
750 assert(MO2.isImm() && "Not a valid t2_so_reg value!");
751 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
752 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
753 if (ShOpc != ARM_AM::rrx)
754 O << " #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
757 void ARMInstPrinter::printAddrModeImm12Operand(const MCInst *MI, unsigned OpNum,
759 const MCOperand &MO1 = MI->getOperand(OpNum);
760 const MCOperand &MO2 = MI->getOperand(OpNum+1);
762 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
763 printOperand(MI, OpNum, O);
767 O << "[" << getRegisterName(MO1.getReg());
769 int32_t OffImm = (int32_t)MO2.getImm();
770 bool isSub = OffImm < 0;
771 // Special value for #-0. All others are normal.
772 if (OffImm == INT32_MIN)
775 O << ", #-" << -OffImm;
777 O << ", #" << OffImm;
781 void ARMInstPrinter::printT2AddrModeImm8Operand(const MCInst *MI,
784 const MCOperand &MO1 = MI->getOperand(OpNum);
785 const MCOperand &MO2 = MI->getOperand(OpNum+1);
787 O << "[" << getRegisterName(MO1.getReg());
789 int32_t OffImm = (int32_t)MO2.getImm();
792 O << ", #-" << -OffImm;
794 O << ", #" << OffImm;
798 void ARMInstPrinter::printT2AddrModeImm8s4Operand(const MCInst *MI,
801 const MCOperand &MO1 = MI->getOperand(OpNum);
802 const MCOperand &MO2 = MI->getOperand(OpNum+1);
804 O << "[" << getRegisterName(MO1.getReg());
806 int32_t OffImm = (int32_t)MO2.getImm() / 4;
809 O << ", #-" << -OffImm * 4;
811 O << ", #" << OffImm * 4;
815 void ARMInstPrinter::printT2AddrModeImm0_1020s4Operand(const MCInst *MI,
818 const MCOperand &MO1 = MI->getOperand(OpNum);
819 const MCOperand &MO2 = MI->getOperand(OpNum+1);
821 O << "[" << getRegisterName(MO1.getReg());
823 O << ", #" << MO2.getImm() * 4;
827 void ARMInstPrinter::printT2AddrModeImm8OffsetOperand(const MCInst *MI,
830 const MCOperand &MO1 = MI->getOperand(OpNum);
831 int32_t OffImm = (int32_t)MO1.getImm();
834 O << "#-" << -OffImm;
839 void ARMInstPrinter::printT2AddrModeImm8s4OffsetOperand(const MCInst *MI,
842 const MCOperand &MO1 = MI->getOperand(OpNum);
843 int32_t OffImm = (int32_t)MO1.getImm() / 4;
848 O << "#-" << -OffImm * 4;
850 O << "#" << OffImm * 4;
854 void ARMInstPrinter::printT2AddrModeSoRegOperand(const MCInst *MI,
857 const MCOperand &MO1 = MI->getOperand(OpNum);
858 const MCOperand &MO2 = MI->getOperand(OpNum+1);
859 const MCOperand &MO3 = MI->getOperand(OpNum+2);
861 O << "[" << getRegisterName(MO1.getReg());
863 assert(MO2.getReg() && "Invalid so_reg load / store address!");
864 O << ", " << getRegisterName(MO2.getReg());
866 unsigned ShAmt = MO3.getImm();
868 assert(ShAmt <= 3 && "Not a valid Thumb2 addressing mode!");
869 O << ", lsl #" << ShAmt;
874 void ARMInstPrinter::printVFPf32ImmOperand(const MCInst *MI, unsigned OpNum,
876 const MCOperand &MO = MI->getOperand(OpNum);
879 O << (float)MO.getFPImm();
886 FPUnion.I = MO.getImm();
891 void ARMInstPrinter::printVFPf64ImmOperand(const MCInst *MI, unsigned OpNum,
893 const MCOperand &MO = MI->getOperand(OpNum);
898 // We expect the binary encoding of a floating point number here.
904 FPUnion.I = MO.getImm();
909 void ARMInstPrinter::printNEONModImmOperand(const MCInst *MI, unsigned OpNum,
911 unsigned EncodedImm = MI->getOperand(OpNum).getImm();
913 uint64_t Val = ARM_AM::decodeNEONModImm(EncodedImm, EltBits);
914 O << "#0x" << utohexstr(Val);
917 void ARMInstPrinter::printImmPlusOneOperand(const MCInst *MI, unsigned OpNum,
919 unsigned Imm = MI->getOperand(OpNum).getImm();
923 void ARMInstPrinter::printRotImmOperand(const MCInst *MI, unsigned OpNum,
925 unsigned Imm = MI->getOperand(OpNum).getImm();
930 default: assert (0 && "illegal ror immediate!");
931 case 1: O << "8"; break;
932 case 2: O << "16"; break;
933 case 3: O << "24"; break;