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,
56 unsigned Opcode = MI->getOpcode();
58 // Check for MOVs and print canonical forms, instead.
59 if (Opcode == ARM::MOVsr) {
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);
64 const MCOperand &MO3 = MI->getOperand(3);
66 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO3.getImm()));
67 printSBitModifierOperand(MI, 6, O);
68 printPredicateOperand(MI, 4, O);
70 O << '\t' << getRegisterName(Dst.getReg())
71 << ", " << getRegisterName(MO1.getReg());
73 O << ", " << getRegisterName(MO2.getReg());
74 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
75 if (CommentStream) printAnnotation(*CommentStream, Annot);
79 if (Opcode == ARM::MOVsi) {
80 // FIXME: Thumb variants?
81 const MCOperand &Dst = MI->getOperand(0);
82 const MCOperand &MO1 = MI->getOperand(1);
83 const MCOperand &MO2 = MI->getOperand(2);
85 O << '\t' << ARM_AM::getShiftOpcStr(ARM_AM::getSORegShOp(MO2.getImm()));
86 printSBitModifierOperand(MI, 5, O);
87 printPredicateOperand(MI, 3, O);
89 O << '\t' << getRegisterName(Dst.getReg())
90 << ", " << getRegisterName(MO1.getReg());
92 if (ARM_AM::getSORegShOp(MO2.getImm()) == ARM_AM::rrx) {
93 if (CommentStream) printAnnotation(*CommentStream, Annot);
97 O << ", #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
98 if (CommentStream) printAnnotation(*CommentStream, Annot);
104 if ((Opcode == ARM::STMDB_UPD || Opcode == ARM::t2STMDB_UPD) &&
105 MI->getOperand(0).getReg() == ARM::SP) {
107 printPredicateOperand(MI, 2, O);
108 if (Opcode == ARM::t2STMDB_UPD)
111 printRegisterList(MI, 4, O);
112 if (CommentStream) printAnnotation(*CommentStream, Annot);
115 if (Opcode == ARM::STR_PRE_IMM && MI->getOperand(2).getReg() == ARM::SP &&
116 MI->getOperand(3).getImm() == -4) {
118 printPredicateOperand(MI, 4, O);
119 O << "\t{" << getRegisterName(MI->getOperand(1).getReg()) << "}";
120 if (CommentStream) printAnnotation(*CommentStream, Annot);
125 if ((Opcode == ARM::LDMIA_UPD || Opcode == ARM::t2LDMIA_UPD) &&
126 MI->getOperand(0).getReg() == ARM::SP) {
128 printPredicateOperand(MI, 2, O);
129 if (Opcode == ARM::t2LDMIA_UPD)
132 printRegisterList(MI, 4, O);
133 if (CommentStream) printAnnotation(*CommentStream, Annot);
136 if (Opcode == ARM::LDR_POST_IMM && MI->getOperand(2).getReg() == ARM::SP &&
137 MI->getOperand(4).getImm() == 4) {
139 printPredicateOperand(MI, 5, O);
140 O << "\t{" << getRegisterName(MI->getOperand(0).getReg()) << "}";
141 if (CommentStream) printAnnotation(*CommentStream, Annot);
147 if ((Opcode == ARM::VSTMSDB_UPD || Opcode == ARM::VSTMDDB_UPD) &&
148 MI->getOperand(0).getReg() == ARM::SP) {
149 O << '\t' << "vpush";
150 printPredicateOperand(MI, 2, O);
152 printRegisterList(MI, 4, O);
153 if (CommentStream) printAnnotation(*CommentStream, Annot);
158 if ((Opcode == ARM::VLDMSIA_UPD || Opcode == ARM::VLDMDIA_UPD) &&
159 MI->getOperand(0).getReg() == ARM::SP) {
161 printPredicateOperand(MI, 2, O);
163 printRegisterList(MI, 4, O);
164 if (CommentStream) printAnnotation(*CommentStream, Annot);
168 if (Opcode == ARM::tLDMIA) {
169 bool Writeback = true;
170 unsigned BaseReg = MI->getOperand(0).getReg();
171 for (unsigned i = 3; i < MI->getNumOperands(); ++i) {
172 if (MI->getOperand(i).getReg() == BaseReg)
178 printPredicateOperand(MI, 1, O);
179 O << '\t' << getRegisterName(BaseReg);
180 if (Writeback) O << "!";
182 printRegisterList(MI, 3, O);
183 if (CommentStream) printAnnotation(*CommentStream, Annot);
188 if (Opcode == ARM::tMOVr && MI->getOperand(0).getReg() == ARM::R8 &&
189 MI->getOperand(1).getReg() == ARM::R8) {
191 printPredicateOperand(MI, 2, O);
192 if (CommentStream) printAnnotation(*CommentStream, Annot);
196 printInstruction(MI, O);
197 if (CommentStream) printAnnotation(*CommentStream, Annot);
200 void ARMInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
202 const MCOperand &Op = MI->getOperand(OpNo);
204 unsigned Reg = Op.getReg();
205 O << getRegisterName(Reg);
206 } else if (Op.isImm()) {
207 O << '#' << Op.getImm();
209 assert(Op.isExpr() && "unknown operand kind in printOperand");
214 // so_reg is a 4-operand unit corresponding to register forms of the A5.1
215 // "Addressing Mode 1 - Data-processing operands" forms. This includes:
217 // REG REG 0,SH_OPC - e.g. R5, ROR R3
218 // REG 0 IMM,SH_OPC - e.g. R5, LSL #3
219 void ARMInstPrinter::printSORegRegOperand(const MCInst *MI, unsigned OpNum,
221 const MCOperand &MO1 = MI->getOperand(OpNum);
222 const MCOperand &MO2 = MI->getOperand(OpNum+1);
223 const MCOperand &MO3 = MI->getOperand(OpNum+2);
225 O << getRegisterName(MO1.getReg());
227 // Print the shift opc.
228 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO3.getImm());
229 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
230 if (ShOpc == ARM_AM::rrx)
233 O << ' ' << getRegisterName(MO2.getReg());
234 assert(ARM_AM::getSORegOffset(MO3.getImm()) == 0);
237 void ARMInstPrinter::printSORegImmOperand(const MCInst *MI, unsigned OpNum,
239 const MCOperand &MO1 = MI->getOperand(OpNum);
240 const MCOperand &MO2 = MI->getOperand(OpNum+1);
242 O << getRegisterName(MO1.getReg());
244 // Print the shift opc.
245 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
246 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
247 if (ShOpc == ARM_AM::rrx)
249 O << " #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
253 //===--------------------------------------------------------------------===//
254 // Addressing Mode #2
255 //===--------------------------------------------------------------------===//
257 void ARMInstPrinter::printAM2PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
259 const MCOperand &MO1 = MI->getOperand(Op);
260 const MCOperand &MO2 = MI->getOperand(Op+1);
261 const MCOperand &MO3 = MI->getOperand(Op+2);
263 O << "[" << getRegisterName(MO1.getReg());
266 if (ARM_AM::getAM2Offset(MO3.getImm())) // Don't print +0.
268 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
269 << ARM_AM::getAM2Offset(MO3.getImm());
275 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
276 << getRegisterName(MO2.getReg());
278 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
280 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
285 void ARMInstPrinter::printAM2PostIndexOp(const MCInst *MI, unsigned Op,
287 const MCOperand &MO1 = MI->getOperand(Op);
288 const MCOperand &MO2 = MI->getOperand(Op+1);
289 const MCOperand &MO3 = MI->getOperand(Op+2);
291 O << "[" << getRegisterName(MO1.getReg()) << "], ";
294 unsigned ImmOffs = ARM_AM::getAM2Offset(MO3.getImm());
296 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
301 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO3.getImm()))
302 << getRegisterName(MO2.getReg());
304 if (unsigned ShImm = ARM_AM::getAM2Offset(MO3.getImm()))
306 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO3.getImm()))
310 void ARMInstPrinter::printAddrModeTBB(const MCInst *MI, unsigned Op,
312 const MCOperand &MO1 = MI->getOperand(Op);
313 const MCOperand &MO2 = MI->getOperand(Op+1);
314 O << "[" << getRegisterName(MO1.getReg()) << ", "
315 << getRegisterName(MO2.getReg()) << "]";
318 void ARMInstPrinter::printAddrModeTBH(const MCInst *MI, unsigned Op,
320 const MCOperand &MO1 = MI->getOperand(Op);
321 const MCOperand &MO2 = MI->getOperand(Op+1);
322 O << "[" << getRegisterName(MO1.getReg()) << ", "
323 << getRegisterName(MO2.getReg()) << ", lsl #1]";
326 void ARMInstPrinter::printAddrMode2Operand(const MCInst *MI, unsigned Op,
328 const MCOperand &MO1 = MI->getOperand(Op);
330 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
331 printOperand(MI, Op, O);
335 const MCOperand &MO3 = MI->getOperand(Op+2);
336 unsigned IdxMode = ARM_AM::getAM2IdxMode(MO3.getImm());
338 if (IdxMode == ARMII::IndexModePost) {
339 printAM2PostIndexOp(MI, Op, O);
342 printAM2PreOrOffsetIndexOp(MI, Op, O);
345 void ARMInstPrinter::printAddrMode2OffsetOperand(const MCInst *MI,
348 const MCOperand &MO1 = MI->getOperand(OpNum);
349 const MCOperand &MO2 = MI->getOperand(OpNum+1);
352 unsigned ImmOffs = ARM_AM::getAM2Offset(MO2.getImm());
354 << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
359 O << ARM_AM::getAddrOpcStr(ARM_AM::getAM2Op(MO2.getImm()))
360 << getRegisterName(MO1.getReg());
362 if (unsigned ShImm = ARM_AM::getAM2Offset(MO2.getImm()))
364 << ARM_AM::getShiftOpcStr(ARM_AM::getAM2ShiftOpc(MO2.getImm()))
368 //===--------------------------------------------------------------------===//
369 // Addressing Mode #3
370 //===--------------------------------------------------------------------===//
372 void ARMInstPrinter::printAM3PostIndexOp(const MCInst *MI, unsigned Op,
374 const MCOperand &MO1 = MI->getOperand(Op);
375 const MCOperand &MO2 = MI->getOperand(Op+1);
376 const MCOperand &MO3 = MI->getOperand(Op+2);
378 O << "[" << getRegisterName(MO1.getReg()) << "], ";
381 O << (char)ARM_AM::getAM3Op(MO3.getImm())
382 << getRegisterName(MO2.getReg());
386 unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm());
388 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
392 void ARMInstPrinter::printAM3PreOrOffsetIndexOp(const MCInst *MI, unsigned Op,
394 const MCOperand &MO1 = MI->getOperand(Op);
395 const MCOperand &MO2 = MI->getOperand(Op+1);
396 const MCOperand &MO3 = MI->getOperand(Op+2);
398 O << '[' << getRegisterName(MO1.getReg());
401 O << ", " << getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
402 << getRegisterName(MO2.getReg()) << ']';
406 if (unsigned ImmOffs = ARM_AM::getAM3Offset(MO3.getImm()))
408 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO3.getImm()))
413 void ARMInstPrinter::printAddrMode3Operand(const MCInst *MI, unsigned Op,
415 const MCOperand &MO3 = MI->getOperand(Op+2);
416 unsigned IdxMode = ARM_AM::getAM3IdxMode(MO3.getImm());
418 if (IdxMode == ARMII::IndexModePost) {
419 printAM3PostIndexOp(MI, Op, O);
422 printAM3PreOrOffsetIndexOp(MI, Op, O);
425 void ARMInstPrinter::printAddrMode3OffsetOperand(const MCInst *MI,
428 const MCOperand &MO1 = MI->getOperand(OpNum);
429 const MCOperand &MO2 = MI->getOperand(OpNum+1);
432 O << getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
433 << getRegisterName(MO1.getReg());
437 unsigned ImmOffs = ARM_AM::getAM3Offset(MO2.getImm());
439 << ARM_AM::getAddrOpcStr(ARM_AM::getAM3Op(MO2.getImm()))
443 void ARMInstPrinter::printPostIdxImm8Operand(const MCInst *MI,
446 const MCOperand &MO = MI->getOperand(OpNum);
447 unsigned Imm = MO.getImm();
448 O << '#' << ((Imm & 256) ? "" : "-") << (Imm & 0xff);
451 void ARMInstPrinter::printPostIdxRegOperand(const MCInst *MI, unsigned OpNum,
453 const MCOperand &MO1 = MI->getOperand(OpNum);
454 const MCOperand &MO2 = MI->getOperand(OpNum+1);
456 O << (MO2.getImm() ? "" : "-") << getRegisterName(MO1.getReg());
459 void ARMInstPrinter::printPostIdxImm8s4Operand(const MCInst *MI,
462 const MCOperand &MO = MI->getOperand(OpNum);
463 unsigned Imm = MO.getImm();
464 O << '#' << ((Imm & 256) ? "" : "-") << ((Imm & 0xff) << 2);
468 void ARMInstPrinter::printLdStmModeOperand(const MCInst *MI, unsigned OpNum,
470 ARM_AM::AMSubMode Mode = ARM_AM::getAM4SubMode(MI->getOperand(OpNum)
472 O << ARM_AM::getAMSubModeStr(Mode);
475 void ARMInstPrinter::printAddrMode5Operand(const MCInst *MI, unsigned OpNum,
477 const MCOperand &MO1 = MI->getOperand(OpNum);
478 const MCOperand &MO2 = MI->getOperand(OpNum+1);
480 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
481 printOperand(MI, OpNum, O);
485 O << "[" << getRegisterName(MO1.getReg());
487 unsigned ImmOffs = ARM_AM::getAM5Offset(MO2.getImm());
488 unsigned Op = ARM_AM::getAM5Op(MO2.getImm());
489 if (ImmOffs || Op == ARM_AM::sub) {
491 << ARM_AM::getAddrOpcStr(ARM_AM::getAM5Op(MO2.getImm()))
497 void ARMInstPrinter::printAddrMode6Operand(const MCInst *MI, unsigned OpNum,
499 const MCOperand &MO1 = MI->getOperand(OpNum);
500 const MCOperand &MO2 = MI->getOperand(OpNum+1);
502 O << "[" << getRegisterName(MO1.getReg());
504 // FIXME: Both darwin as and GNU as violate ARM docs here.
505 O << ", :" << (MO2.getImm() << 3);
510 void ARMInstPrinter::printAddrMode7Operand(const MCInst *MI, unsigned OpNum,
512 const MCOperand &MO1 = MI->getOperand(OpNum);
513 O << "[" << getRegisterName(MO1.getReg()) << "]";
516 void ARMInstPrinter::printAddrMode6OffsetOperand(const MCInst *MI,
519 const MCOperand &MO = MI->getOperand(OpNum);
520 if (MO.getReg() == 0)
523 O << ", " << getRegisterName(MO.getReg());
526 void ARMInstPrinter::printBitfieldInvMaskImmOperand(const MCInst *MI,
529 const MCOperand &MO = MI->getOperand(OpNum);
530 uint32_t v = ~MO.getImm();
531 int32_t lsb = CountTrailingZeros_32(v);
532 int32_t width = (32 - CountLeadingZeros_32 (v)) - lsb;
533 assert(MO.isImm() && "Not a valid bf_inv_mask_imm value!");
534 O << '#' << lsb << ", #" << width;
537 void ARMInstPrinter::printMemBOption(const MCInst *MI, unsigned OpNum,
539 unsigned val = MI->getOperand(OpNum).getImm();
540 O << ARM_MB::MemBOptToString(val);
543 void ARMInstPrinter::printShiftImmOperand(const MCInst *MI, unsigned OpNum,
545 unsigned ShiftOp = MI->getOperand(OpNum).getImm();
546 bool isASR = (ShiftOp & (1 << 5)) != 0;
547 unsigned Amt = ShiftOp & 0x1f;
549 O << ", asr #" << (Amt == 0 ? 32 : Amt);
551 O << ", lsl #" << Amt;
554 void ARMInstPrinter::printPKHLSLShiftImm(const MCInst *MI, unsigned OpNum,
556 unsigned Imm = MI->getOperand(OpNum).getImm();
559 assert(Imm > 0 && Imm < 32 && "Invalid PKH shift immediate value!");
560 O << ", lsl #" << Imm;
563 void ARMInstPrinter::printPKHASRShiftImm(const MCInst *MI, unsigned OpNum,
565 unsigned Imm = MI->getOperand(OpNum).getImm();
566 // A shift amount of 32 is encoded as 0.
569 assert(Imm > 0 && Imm <= 32 && "Invalid PKH shift immediate value!");
570 O << ", asr #" << Imm;
573 void ARMInstPrinter::printRegisterList(const MCInst *MI, unsigned OpNum,
576 for (unsigned i = OpNum, e = MI->getNumOperands(); i != e; ++i) {
577 if (i != OpNum) O << ", ";
578 O << getRegisterName(MI->getOperand(i).getReg());
583 void ARMInstPrinter::printSetendOperand(const MCInst *MI, unsigned OpNum,
585 const MCOperand &Op = MI->getOperand(OpNum);
592 void ARMInstPrinter::printCPSIMod(const MCInst *MI, unsigned OpNum,
594 const MCOperand &Op = MI->getOperand(OpNum);
595 O << ARM_PROC::IModToString(Op.getImm());
598 void ARMInstPrinter::printCPSIFlag(const MCInst *MI, unsigned OpNum,
600 const MCOperand &Op = MI->getOperand(OpNum);
601 unsigned IFlags = Op.getImm();
602 for (int i=2; i >= 0; --i)
603 if (IFlags & (1 << i))
604 O << ARM_PROC::IFlagsToString(1 << i);
607 void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
609 const MCOperand &Op = MI->getOperand(OpNum);
610 unsigned SpecRegRBit = Op.getImm() >> 4;
611 unsigned Mask = Op.getImm() & 0xf;
613 // As special cases, CPSR_f, CPSR_s and CPSR_fs prefer printing as
614 // APSR_nzcvq, APSR_g and APSRnzcvqg, respectively.
615 if (!SpecRegRBit && (Mask == 8 || Mask == 4 || Mask == 12)) {
619 case 4: O << "g"; return;
620 case 8: O << "nzcvq"; return;
621 case 12: O << "nzcvqg"; return;
623 llvm_unreachable("Unexpected mask value!");
633 if (Mask & 8) O << 'f';
634 if (Mask & 4) O << 's';
635 if (Mask & 2) O << 'x';
636 if (Mask & 1) O << 'c';
640 void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum,
642 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
644 O << ARMCondCodeToString(CC);
647 void ARMInstPrinter::printMandatoryPredicateOperand(const MCInst *MI,
650 ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
651 O << ARMCondCodeToString(CC);
654 void ARMInstPrinter::printSBitModifierOperand(const MCInst *MI, unsigned OpNum,
656 if (MI->getOperand(OpNum).getReg()) {
657 assert(MI->getOperand(OpNum).getReg() == ARM::CPSR &&
658 "Expect ARM CPSR register!");
663 void ARMInstPrinter::printNoHashImmediate(const MCInst *MI, unsigned OpNum,
665 O << MI->getOperand(OpNum).getImm();
668 void ARMInstPrinter::printPImmediate(const MCInst *MI, unsigned OpNum,
670 O << "p" << MI->getOperand(OpNum).getImm();
673 void ARMInstPrinter::printCImmediate(const MCInst *MI, unsigned OpNum,
675 O << "c" << MI->getOperand(OpNum).getImm();
678 void ARMInstPrinter::printPCLabel(const MCInst *MI, unsigned OpNum,
680 llvm_unreachable("Unhandled PC-relative pseudo-instruction!");
683 void ARMInstPrinter::printThumbS4ImmOperand(const MCInst *MI, unsigned OpNum,
685 O << "#" << MI->getOperand(OpNum).getImm() * 4;
688 void ARMInstPrinter::printThumbSRImm(const MCInst *MI, unsigned OpNum,
690 unsigned Imm = MI->getOperand(OpNum).getImm();
691 O << "#" << (Imm == 0 ? 32 : Imm);
694 void ARMInstPrinter::printThumbITMask(const MCInst *MI, unsigned OpNum,
696 // (3 - the number of trailing zeros) is the number of then / else.
697 unsigned Mask = MI->getOperand(OpNum).getImm();
698 unsigned CondBit0 = Mask >> 4 & 1;
699 unsigned NumTZ = CountTrailingZeros_32(Mask);
700 assert(NumTZ <= 3 && "Invalid IT mask!");
701 for (unsigned Pos = 3, e = NumTZ; Pos > e; --Pos) {
702 bool T = ((Mask >> Pos) & 1) == CondBit0;
710 void ARMInstPrinter::printThumbAddrModeRROperand(const MCInst *MI, unsigned Op,
712 const MCOperand &MO1 = MI->getOperand(Op);
713 const MCOperand &MO2 = MI->getOperand(Op + 1);
715 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
716 printOperand(MI, Op, O);
720 O << "[" << getRegisterName(MO1.getReg());
721 if (unsigned RegNum = MO2.getReg())
722 O << ", " << getRegisterName(RegNum);
726 void ARMInstPrinter::printThumbAddrModeImm5SOperand(const MCInst *MI,
730 const MCOperand &MO1 = MI->getOperand(Op);
731 const MCOperand &MO2 = MI->getOperand(Op + 1);
733 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
734 printOperand(MI, Op, O);
738 O << "[" << getRegisterName(MO1.getReg());
739 if (unsigned ImmOffs = MO2.getImm())
740 O << ", #" << ImmOffs * Scale;
744 void ARMInstPrinter::printThumbAddrModeImm5S1Operand(const MCInst *MI,
747 printThumbAddrModeImm5SOperand(MI, Op, O, 1);
750 void ARMInstPrinter::printThumbAddrModeImm5S2Operand(const MCInst *MI,
753 printThumbAddrModeImm5SOperand(MI, Op, O, 2);
756 void ARMInstPrinter::printThumbAddrModeImm5S4Operand(const MCInst *MI,
759 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
762 void ARMInstPrinter::printThumbAddrModeSPOperand(const MCInst *MI, unsigned Op,
764 printThumbAddrModeImm5SOperand(MI, Op, O, 4);
767 // Constant shifts t2_so_reg is a 2-operand unit corresponding to the Thumb2
768 // register with shift forms.
770 // REG IMM, SH_OPC - e.g. R5, LSL #3
771 void ARMInstPrinter::printT2SOOperand(const MCInst *MI, unsigned OpNum,
773 const MCOperand &MO1 = MI->getOperand(OpNum);
774 const MCOperand &MO2 = MI->getOperand(OpNum+1);
776 unsigned Reg = MO1.getReg();
777 O << getRegisterName(Reg);
779 // Print the shift opc.
780 assert(MO2.isImm() && "Not a valid t2_so_reg value!");
781 ARM_AM::ShiftOpc ShOpc = ARM_AM::getSORegShOp(MO2.getImm());
782 O << ", " << ARM_AM::getShiftOpcStr(ShOpc);
783 if (ShOpc != ARM_AM::rrx)
784 O << " #" << translateShiftImm(ARM_AM::getSORegOffset(MO2.getImm()));
787 void ARMInstPrinter::printAddrModeImm12Operand(const MCInst *MI, unsigned OpNum,
789 const MCOperand &MO1 = MI->getOperand(OpNum);
790 const MCOperand &MO2 = MI->getOperand(OpNum+1);
792 if (!MO1.isReg()) { // FIXME: This is for CP entries, but isn't right.
793 printOperand(MI, OpNum, O);
797 O << "[" << getRegisterName(MO1.getReg());
799 int32_t OffImm = (int32_t)MO2.getImm();
800 bool isSub = OffImm < 0;
801 // Special value for #-0. All others are normal.
802 if (OffImm == INT32_MIN)
805 O << ", #-" << -OffImm;
807 O << ", #" << OffImm;
811 void ARMInstPrinter::printT2AddrModeImm8Operand(const MCInst *MI,
814 const MCOperand &MO1 = MI->getOperand(OpNum);
815 const MCOperand &MO2 = MI->getOperand(OpNum+1);
817 O << "[" << getRegisterName(MO1.getReg());
819 int32_t OffImm = (int32_t)MO2.getImm();
821 if (OffImm == INT32_MIN)
824 O << ", #-" << -OffImm;
826 O << ", #" << OffImm;
830 void ARMInstPrinter::printT2AddrModeImm8s4Operand(const MCInst *MI,
833 const MCOperand &MO1 = MI->getOperand(OpNum);
834 const MCOperand &MO2 = MI->getOperand(OpNum+1);
836 O << "[" << getRegisterName(MO1.getReg());
838 int32_t OffImm = (int32_t)MO2.getImm() / 4;
841 O << ", #-" << -OffImm * 4;
843 O << ", #" << OffImm * 4;
847 void ARMInstPrinter::printT2AddrModeImm0_1020s4Operand(const MCInst *MI,
850 const MCOperand &MO1 = MI->getOperand(OpNum);
851 const MCOperand &MO2 = MI->getOperand(OpNum+1);
853 O << "[" << getRegisterName(MO1.getReg());
855 O << ", #" << MO2.getImm() * 4;
859 void ARMInstPrinter::printT2AddrModeImm8OffsetOperand(const MCInst *MI,
862 const MCOperand &MO1 = MI->getOperand(OpNum);
863 int32_t OffImm = (int32_t)MO1.getImm();
866 O << "#-" << -OffImm;
871 void ARMInstPrinter::printT2AddrModeImm8s4OffsetOperand(const MCInst *MI,
874 const MCOperand &MO1 = MI->getOperand(OpNum);
875 int32_t OffImm = (int32_t)MO1.getImm() / 4;
880 O << "#-" << -OffImm * 4;
882 O << "#" << OffImm * 4;
886 void ARMInstPrinter::printT2AddrModeSoRegOperand(const MCInst *MI,
889 const MCOperand &MO1 = MI->getOperand(OpNum);
890 const MCOperand &MO2 = MI->getOperand(OpNum+1);
891 const MCOperand &MO3 = MI->getOperand(OpNum+2);
893 O << "[" << getRegisterName(MO1.getReg());
895 assert(MO2.getReg() && "Invalid so_reg load / store address!");
896 O << ", " << getRegisterName(MO2.getReg());
898 unsigned ShAmt = MO3.getImm();
900 assert(ShAmt <= 3 && "Not a valid Thumb2 addressing mode!");
901 O << ", lsl #" << ShAmt;
906 void ARMInstPrinter::printVFPf32ImmOperand(const MCInst *MI, unsigned OpNum,
908 const MCOperand &MO = MI->getOperand(OpNum);
911 O << (float)MO.getFPImm();
918 FPUnion.I = MO.getImm();
923 void ARMInstPrinter::printVFPf64ImmOperand(const MCInst *MI, unsigned OpNum,
925 const MCOperand &MO = MI->getOperand(OpNum);
930 // We expect the binary encoding of a floating point number here.
936 FPUnion.I = MO.getImm();
941 void ARMInstPrinter::printNEONModImmOperand(const MCInst *MI, unsigned OpNum,
943 unsigned EncodedImm = MI->getOperand(OpNum).getImm();
945 uint64_t Val = ARM_AM::decodeNEONModImm(EncodedImm, EltBits);
946 O << "#0x" << utohexstr(Val);
949 void ARMInstPrinter::printImmPlusOneOperand(const MCInst *MI, unsigned OpNum,
951 unsigned Imm = MI->getOperand(OpNum).getImm();
955 void ARMInstPrinter::printRotImmOperand(const MCInst *MI, unsigned OpNum,
957 unsigned Imm = MI->getOperand(OpNum).getImm();
962 default: assert (0 && "illegal ror immediate!");
963 case 1: O << "8"; break;
964 case 2: O << "16"; break;
965 case 3: O << "24"; break;