#include "ARMTargetMachine.h"
#include "llvm/Constants.h"
#include "llvm/Module.h"
+#include "llvm/Type.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/Target/TargetRegistry.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringSet.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Mangler.h"
#include "llvm/Support/MathExtras.h"
#include <cctype>
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
static cl::opt<bool>
EnableMCInst("enable-arm-mcinst-printer", cl::Hidden,
cl::desc("enable experimental asmprinter gunk in the arm backend"));
public:
explicit ARMAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
- const MCAsmInfo *T, bool V)
- : AsmPrinter(O, TM, T, V), AFI(NULL), MCP(NULL) {
+ MCContext &Ctx, MCStreamer &Streamer,
+ const MCAsmInfo *T)
+ : AsmPrinter(O, TM, Ctx, Streamer, T), AFI(NULL), MCP(NULL) {
Subtarget = &TM.getSubtarget<ARMSubtarget>();
}
return "ARM Assembly Printer";
}
- void printMCInst(const MCInst *MI) {
- ARMInstPrinter(O, *MAI, VerboseAsm).printInstruction(MI);
- }
-
void printInstructionThroughMCStreamer(const MachineInstr *MI);
const char *Modifier = 0);
void printBitfieldInvMaskImmOperand (const MachineInstr *MI, int OpNum);
+ void printThumbS4ImmOperand(const MachineInstr *MI, int OpNum);
void printThumbITMask(const MachineInstr *MI, int OpNum);
void printThumbAddrModeRROperand(const MachineInstr *MI, int OpNum);
void printThumbAddrModeRI5Operand(const MachineInstr *MI, int OpNum,
void printJT2BlockOperand(const MachineInstr *MI, int OpNum);
void printTBAddrMode(const MachineInstr *MI, int OpNum);
void printNoHashImmediate(const MachineInstr *MI, int OpNum);
+ void printVFPf32ImmOperand(const MachineInstr *MI, int OpNum);
+ void printVFPf64ImmOperand(const MachineInstr *MI, int OpNum);
+
+ void printHex8ImmOperand(const MachineInstr *MI, int OpNum) {
+ O << "#0x" << utohexstr(MI->getOperand(OpNum).getImm() & 0xff);
+ }
+ void printHex16ImmOperand(const MachineInstr *MI, int OpNum) {
+ O << "#0x" << utohexstr(MI->getOperand(OpNum).getImm() & 0xffff);
+ }
+ void printHex32ImmOperand(const MachineInstr *MI, int OpNum) {
+ O << "#0x" << utohexstr(MI->getOperand(OpNum).getImm() & 0xffffffff);
+ }
+ void printHex64ImmOperand(const MachineInstr *MI, int OpNum) {
+ O << "#0x" << utohexstr(MI->getOperand(OpNum).getImm());
+ }
virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
unsigned AsmVariant, const char *ExtraCode);
unsigned AsmVariant,
const char *ExtraCode);
- void PrintGlobalVariable(const GlobalVariable* GVar);
void printInstruction(const MachineInstr *MI); // autogenerated.
static const char *getRegisterName(unsigned RegNo);
- void printMachineInstruction(const MachineInstr *MI);
+ virtual void EmitInstruction(const MachineInstr *MI);
bool runOnMachineFunction(MachineFunction &F);
+
+ virtual void EmitConstantPool() {} // we emit constant pools customly!
+ virtual void EmitFunctionEntryLabel();
void EmitStartOfAsmFile(Module &M);
void EmitEndOfAsmFile(Module &M);
+ MCSymbol *GetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2,
+ const MachineBasicBlock *MBB) const;
+ MCSymbol *GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const;
+
/// EmitMachineConstantPoolValue - Print a machine constantpool value to
/// the .s file.
virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) {
- printDataDirective(MCPV->getType());
+ switch (TM.getTargetData()->getTypeAllocSize(MCPV->getType())) {
+ case 1: O << MAI->getData8bitsDirective(0); break;
+ case 2: O << MAI->getData16bitsDirective(0); break;
+ case 4: O << MAI->getData32bitsDirective(0); break;
+ default: assert(0 && "Unknown CPV size");
+ }
ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV);
- GlobalValue *GV = ACPV->getGV();
- std::string Name;
+ SmallString<128> TmpNameStr;
if (ACPV->isLSDA()) {
- SmallString<16> LSDAName;
- raw_svector_ostream(LSDAName) << MAI->getPrivateGlobalPrefix() <<
+ raw_svector_ostream(TmpNameStr) << MAI->getPrivateGlobalPrefix() <<
"_LSDA_" << getFunctionNumber();
- Name = LSDAName.str();
- } else if (GV) {
+ O << TmpNameStr.str();
+ } else if (ACPV->isBlockAddress()) {
+ O << GetBlockAddressSymbol(ACPV->getBlockAddress())->getName();
+ } else if (ACPV->isGlobalValue()) {
+ GlobalValue *GV = ACPV->getGV();
bool isIndirect = Subtarget->isTargetDarwin() &&
Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel());
if (!isIndirect)
- Name = Mang->getMangledName(GV);
+ O << *GetGlobalValueSymbol(GV);
else {
// FIXME: Remove this when Darwin transition to @GOT like syntax.
- Name = Mang->getMangledName(GV, "$non_lazy_ptr", true);
- MCSymbol *Sym = OutContext.GetOrCreateSymbol(StringRef(Name));
+ MCSymbol *Sym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
+ O << *Sym;
MachineModuleInfoMachO &MMIMachO =
MMI->getObjFileInfo<MachineModuleInfoMachO>();
- const MCSymbol *&StubSym =
+ MCSymbol *&StubSym =
GV->hasHiddenVisibility() ? MMIMachO.getHiddenGVStubEntry(Sym) :
MMIMachO.getGVStubEntry(Sym);
- if (StubSym == 0) {
- SmallString<128> NameStr;
- Mang->getNameWithPrefix(NameStr, GV, false);
- StubSym = OutContext.GetOrCreateSymbol(NameStr.str());
- }
+ if (StubSym == 0)
+ StubSym = GetGlobalValueSymbol(GV);
}
- } else
- Name = Mang->makeNameProper(ACPV->getSymbol());
- O << Name;
+ } else {
+ assert(ACPV->isExtSymbol() && "unrecognized constant pool value");
+ O << *GetExternalSymbolSymbol(ACPV->getSymbol());
+ }
if (ACPV->hasModifier()) O << "(" << ACPV->getModifier() << ")";
if (ACPV->getPCAdjustment() != 0) {
O << "-(" << MAI->getPrivateGlobalPrefix() << "PC"
- << ACPV->getLabelId()
+ << getFunctionNumber() << "_" << ACPV->getLabelId()
<< "+" << (unsigned)ACPV->getPCAdjustment();
if (ACPV->mustAddCurrentAddress())
O << "-.";
- O << ")";
+ O << ')';
}
- O << "\n";
+ OutStreamer.AddBlankLine();
}
void getAnalysisUsage(AnalysisUsage &AU) const {
#include "ARMGenAsmWriter.inc"
-/// runOnMachineFunction - This uses the printInstruction()
-/// method to print assembly for each instruction.
-///
-bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- this->MF = &MF;
-
- AFI = MF.getInfo<ARMFunctionInfo>();
- MCP = MF.getConstantPool();
-
- SetupMachineFunction(MF);
- O << "\n";
-
- // NOTE: we don't print out constant pools here, they are handled as
- // instructions.
-
- O << '\n';
-
- // Print out labels for the function.
- const Function *F = MF.getFunction();
- OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
-
- switch (F->getLinkage()) {
- default: llvm_unreachable("Unknown linkage type!");
- case Function::PrivateLinkage:
- case Function::InternalLinkage:
- break;
- case Function::ExternalLinkage:
- O << "\t.globl\t" << CurrentFnName << "\n";
- break;
- case Function::LinkerPrivateLinkage:
- case Function::WeakAnyLinkage:
- case Function::WeakODRLinkage:
- case Function::LinkOnceAnyLinkage:
- case Function::LinkOnceODRLinkage:
- if (Subtarget->isTargetDarwin()) {
- O << "\t.globl\t" << CurrentFnName << "\n";
- O << "\t.weak_definition\t" << CurrentFnName << "\n";
- } else {
- O << MAI->getWeakRefDirective() << CurrentFnName << "\n";
- }
- break;
- }
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- unsigned FnAlign = 1 << MF.getAlignment(); // MF alignment is log2.
+void ARMAsmPrinter::EmitFunctionEntryLabel() {
if (AFI->isThumbFunction()) {
- EmitAlignment(FnAlign, F, AFI->getAlign());
O << "\t.code\t16\n";
O << "\t.thumb_func";
if (Subtarget->isTargetDarwin())
- O << "\t" << CurrentFnName;
- O << "\n";
- } else {
- EmitAlignment(FnAlign, F);
- }
-
- O << CurrentFnName << ":\n";
- // Emit pre-function debug information.
- DW->BeginFunction(&MF);
-
- if (Subtarget->isTargetDarwin()) {
- // If the function is empty, then we need to emit *something*. Otherwise,
- // the function's label might be associated with something that it wasn't
- // meant to be associated with. We emit a noop in this situation.
- MachineFunction::iterator I = MF.begin();
-
- if (++I == MF.end() && MF.front().empty())
- O << "\tnop\n";
- }
-
- // Print out code for the function.
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- if (I != MF.begin())
- EmitBasicBlockStart(I);
-
- // Print the assembly for the instruction.
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II)
- printMachineInstruction(II);
+ O << '\t' << *CurrentFnSym;
+ O << '\n';
}
+
+ OutStreamer.EmitLabel(CurrentFnSym);
+}
- if (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size " << CurrentFnName << ", .-" << CurrentFnName << "\n";
-
- // Emit post-function debug information.
- DW->EndFunction(&MF);
+/// runOnMachineFunction - This uses the printInstruction()
+/// method to print assembly for each instruction.
+///
+bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+ AFI = MF.getInfo<ARMFunctionInfo>();
+ MCP = MF.getConstantPool();
- return false;
+ return AsmPrinter::runOnMachineFunction(MF);
}
void ARMAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
const char *Modifier) {
const MachineOperand &MO = MI->getOperand(OpNum);
+ unsigned TF = MO.getTargetFlags();
+
switch (MO.getType()) {
default:
assert(0 && "<unknown operand type>");
&ARM::DPR_VFP2RegClass);
O << getRegisterName(DReg) << '[' << (RegNum & 1) << ']';
} else {
+ assert(!MO.getSubReg() && "Subregs should be eliminated!");
O << getRegisterName(Reg);
}
break;
case MachineOperand::MO_Immediate: {
int64_t Imm = MO.getImm();
O << '#';
- if (Modifier) {
- if (strcmp(Modifier, "lo16") == 0)
- O << ":lower16:";
- else if (strcmp(Modifier, "hi16") == 0)
- O << ":upper16:";
- }
+ if ((Modifier && strcmp(Modifier, "lo16") == 0) ||
+ (TF & ARMII::MO_LO16))
+ O << ":lower16:";
+ else if ((Modifier && strcmp(Modifier, "hi16") == 0) ||
+ (TF & ARMII::MO_HI16))
+ O << ":upper16:";
O << Imm;
break;
}
case MachineOperand::MO_MachineBasicBlock:
- GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress: {
bool isCallOp = Modifier && !strcmp(Modifier, "call");
GlobalValue *GV = MO.getGlobal();
- O << Mang->getMangledName(GV);
+
+ if ((Modifier && strcmp(Modifier, "lo16") == 0) ||
+ (TF & ARMII::MO_LO16))
+ O << ":lower16:";
+ else if ((Modifier && strcmp(Modifier, "hi16") == 0) ||
+ (TF & ARMII::MO_HI16))
+ O << ":upper16:";
+ O << *GetGlobalValueSymbol(GV);
printOffset(MO.getOffset());
}
case MachineOperand::MO_ExternalSymbol: {
bool isCallOp = Modifier && !strcmp(Modifier, "call");
- std::string Name = Mang->makeNameProper(MO.getSymbolName());
-
- O << Name;
+ O << *GetExternalSymbolSymbol(MO.getSymbolName());
+
if (isCallOp && Subtarget->isTargetELF() &&
TM.getRelocationModel() == Reloc::PIC_)
O << "(PLT)";
break;
}
case MachineOperand::MO_ConstantPoolIndex:
- O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
- << '_' << MO.getIndex();
+ O << *GetCPISymbol(MO.getIndex());
break;
case MachineOperand::MO_JumpTableIndex:
- O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << MO.getIndex();
+ O << *GetJTISymbol(MO.getIndex());
break;
}
}
if (Rot) {
O << "#" << Imm << ", " << Rot;
// Pretty printed version.
- if (VerboseAsm)
- O << ' ' << MAI->getCommentString()
- << ' ' << (int)ARM_AM::rotr32(Imm, Rot);
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ O << (int)ARM_AM::rotr32(Imm, Rot);
+ }
} else {
O << "#" << Imm;
}
printSOImm(O, V1, VerboseAsm, MAI);
O << "\n\torr";
printPredicateOperand(MI, 2);
- O << " ";
+ O << "\t";
printOperand(MI, 0);
O << ", ";
printOperand(MI, 0);
if (Modifier && strcmp(Modifier, "submode") == 0) {
ARM_AM::AMSubMode Mode = ARM_AM::getAM5SubMode(MO2.getImm());
- if (MO1.getReg() == ARM::SP) {
- bool isFLDM = (MI->getOpcode() == ARM::FLDMD ||
- MI->getOpcode() == ARM::FLDMS);
- O << ARM_AM::getAMSubModeAltStr(Mode, isFLDM);
- } else
- O << ARM_AM::getAMSubModeStr(Mode);
+ O << ARM_AM::getAMSubModeStr(Mode);
return;
} else if (Modifier && strcmp(Modifier, "base") == 0) {
// Used for FSTM{D|S} and LSTM{D|S} operations.
const MachineOperand &MO1 = MI->getOperand(Op);
const MachineOperand &MO2 = MI->getOperand(Op+1);
const MachineOperand &MO3 = MI->getOperand(Op+2);
+ const MachineOperand &MO4 = MI->getOperand(Op+3);
- // FIXME: No support yet for specifying alignment.
- O << "[" << getRegisterName(MO1.getReg()) << "]";
+ O << "[" << getRegisterName(MO1.getReg());
+ if (MO4.getImm()) {
+ // FIXME: Both darwin as and GNU as violate ARM docs here.
+ O << ", :" << MO4.getImm();
+ }
+ O << "]";
if (ARM_AM::getAM6WBFlag(MO3.getImm())) {
if (MO2.getReg() == 0)
//===--------------------------------------------------------------------===//
+void ARMAsmPrinter::printThumbS4ImmOperand(const MachineInstr *MI, int Op) {
+ O << "#" << MI->getOperand(Op).getImm() * 4;
+}
+
void
ARMAsmPrinter::printThumbITMask(const MachineInstr *MI, int Op) {
// (3 - the number of trailing zeros) is the number of then / else.
O << "[" << getRegisterName(MO1.getReg());
if (MO3.getReg())
O << ", " << getRegisterName(MO3.getReg());
- else if (unsigned ImmOffs = MO2.getImm()) {
- O << ", #" << ImmOffs;
- if (Scale > 1)
- O << " * " << Scale;
- }
+ else if (unsigned ImmOffs = MO2.getImm())
+ O << ", #+" << ImmOffs * Scale;
O << "]";
}
const MachineOperand &MO2 = MI->getOperand(Op+1);
O << "[" << getRegisterName(MO1.getReg());
if (unsigned ImmOffs = MO2.getImm())
- O << ", #" << ImmOffs << " * 4";
+ O << ", #+" << ImmOffs*4;
O << "]";
}
int32_t OffImm = (int32_t)MO2.getImm() / 4;
// Don't print +0.
if (OffImm < 0)
- O << ", #-" << -OffImm << " * 4";
+ O << ", #-" << -OffImm * 4;
else if (OffImm > 0)
- O << ", #+" << OffImm << " * 4";
+ O << ", #+" << OffImm * 4;
O << "]";
}
void ARMAsmPrinter::printPCLabel(const MachineInstr *MI, int OpNum) {
int Id = (int)MI->getOperand(OpNum).getImm();
- O << MAI->getPrivateGlobalPrefix() << "PC" << Id;
+ O << MAI->getPrivateGlobalPrefix()
+ << "PC" << getFunctionNumber() << "_" << Id;
}
void ARMAsmPrinter::printRegisterList(const MachineInstr *MI, int OpNum) {
// data itself.
if (!strcmp(Modifier, "label")) {
unsigned ID = MI->getOperand(OpNum).getImm();
- O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
- << '_' << ID << ":\n";
+ OutStreamer.EmitLabel(GetCPISymbol(ID));
} else {
assert(!strcmp(Modifier, "cpentry") && "Unknown modifier for CPE");
unsigned CPI = MI->getOperand(OpNum).getIndex();
}
}
+MCSymbol *ARMAsmPrinter::
+GetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2,
+ const MachineBasicBlock *MBB) const {
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix()
+ << getFunctionNumber() << '_' << uid << '_' << uid2
+ << "_set_" << MBB->getNumber();
+ return OutContext.GetOrCreateSymbol(Name.str());
+}
+
+MCSymbol *ARMAsmPrinter::
+GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const {
+ SmallString<60> Name;
+ raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI"
+ << getFunctionNumber() << '_' << uid << '_' << uid2;
+ return OutContext.GetOrCreateSymbol(Name.str());
+}
+
void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
assert(!Subtarget->isThumb2() && "Thumb2 should use double-jump jumptables!");
const MachineOperand &MO1 = MI->getOperand(OpNum);
const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id
+
unsigned JTI = MO1.getIndex();
- O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << JTI << '_' << MO2.getImm() << ":\n";
+ MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm());
+ OutStreamer.EmitLabel(JTISymbol);
const char *JTEntryDirective = MAI->getData32bitsDirective();
- const MachineFunction *MF = MI->getParent()->getParent();
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs;
- bool UseSet= MAI->getSetDirective() && TM.getRelocationModel() == Reloc::PIC_;
+ bool UseSet= MAI->hasSetDirective() && TM.getRelocationModel() == Reloc::PIC_;
SmallPtrSet<MachineBasicBlock*, 8> JTSets;
for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) {
MachineBasicBlock *MBB = JTBBs[i];
bool isNew = JTSets.insert(MBB);
- if (UseSet && isNew)
- printPICJumpTableSetLabel(JTI, MO2.getImm(), MBB);
+ if (UseSet && isNew) {
+ O << "\t.set\t"
+ << *GetARMSetPICJumpTableLabel2(JTI, MO2.getImm(), MBB) << ','
+ << *MBB->getSymbol(OutContext) << '-' << *JTISymbol << '\n';
+ }
O << JTEntryDirective << ' ';
if (UseSet)
- O << MAI->getPrivateGlobalPrefix() << getFunctionNumber()
- << '_' << JTI << '_' << MO2.getImm()
- << "_set_" << MBB->getNumber();
- else if (TM.getRelocationModel() == Reloc::PIC_) {
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
- O << '-' << MAI->getPrivateGlobalPrefix() << "JTI"
- << getFunctionNumber() << '_' << JTI << '_' << MO2.getImm();
- } else {
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
- }
+ O << *GetARMSetPICJumpTableLabel2(JTI, MO2.getImm(), MBB);
+ else if (TM.getRelocationModel() == Reloc::PIC_)
+ O << *MBB->getSymbol(OutContext) << '-' << *JTISymbol;
+ else
+ O << *MBB->getSymbol(OutContext);
+
if (i != e-1)
O << '\n';
}
const MachineOperand &MO1 = MI->getOperand(OpNum);
const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id
unsigned JTI = MO1.getIndex();
- O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << JTI << '_' << MO2.getImm() << ":\n";
+
+ MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm());
+ OutStreamer.EmitLabel(JTISymbol);
- const MachineFunction *MF = MI->getParent()->getParent();
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs;
O << MAI->getData8bitsDirective();
else if (HalfWordOffset)
O << MAI->getData16bitsDirective();
- if (ByteOffset || HalfWordOffset) {
- O << '(';
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
- O << "-" << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << JTI << '_' << MO2.getImm() << ")/2";
- } else {
- O << "\tb.w ";
- GetMBBSymbol(MBB->getNumber())->print(O, MAI);
- }
+
+ if (ByteOffset || HalfWordOffset)
+ O << '(' << *MBB->getSymbol(OutContext) << "-" << *JTISymbol << ")/2";
+ else
+ O << "\tb.w " << *MBB->getSymbol(OutContext);
+
if (i != e-1)
O << '\n';
}
O << MI->getOperand(OpNum).getImm();
}
+void ARMAsmPrinter::printVFPf32ImmOperand(const MachineInstr *MI, int OpNum) {
+ const ConstantFP *FP = MI->getOperand(OpNum).getFPImm();
+ O << '#' << FP->getValueAPF().convertToFloat();
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ WriteAsOperand(O, FP, /*PrintType=*/false);
+ }
+}
+
+void ARMAsmPrinter::printVFPf64ImmOperand(const MachineInstr *MI, int OpNum) {
+ const ConstantFP *FP = MI->getOperand(OpNum).getFPImm();
+ O << '#' << FP->getValueAPF().convertToDouble();
+ if (VerboseAsm) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString() << ' ';
+ WriteAsOperand(O, FP, /*PrintType=*/false);
+ }
+}
+
bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum,
unsigned AsmVariant, const char *ExtraCode){
// Does this asm operand have a single letter operand modifier?
printNoHashImmediate(MI, OpNum);
return false;
case 'P': // Print a VFP double precision register.
+ case 'q': // Print a NEON quad precision register.
printOperand(MI, OpNum);
return false;
case 'Q':
return false;
}
-void ARMAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
- // Call the autogenerated instruction printer routines.
- processDebugLoc(MI, true);
-
+void ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) {
if (EnableMCInst) {
printInstructionThroughMCStreamer(MI);
} else {
EmitAlignment(2);
printInstruction(MI);
+ OutStreamer.AddBlankLine();
}
-
- if (VerboseAsm && !MI->getDebugLoc().isUnknown())
- EmitComments(*MI);
- O << '\n';
- processDebugLoc(MI, false);
}
void ARMAsmPrinter::EmitStartOfAsmFile(Module &M) {
}
}
- // Use unified assembler syntax mode for Thumb.
- if (Subtarget->isThumb())
- O << "\t.syntax unified\n";
+ // Use unified assembler syntax.
+ O << "\t.syntax unified\n";
// Emit ARM Build Attributes
if (Subtarget->isTargetELF()) {
}
}
-void ARMAsmPrinter::PrintGlobalVariable(const GlobalVariable* GVar) {
- const TargetData *TD = TM.getTargetData();
-
- if (!GVar->hasInitializer()) // External global require no code
- return;
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
-
- if (EmitSpecialLLVMGlobal(GVar)) {
- if (Subtarget->isTargetDarwin() &&
- TM.getRelocationModel() == Reloc::Static) {
- if (GVar->getName() == "llvm.global_ctors")
- O << ".reference .constructors_used\n";
- else if (GVar->getName() == "llvm.global_dtors")
- O << ".reference .destructors_used\n";
- }
- return;
- }
-
- std::string name = Mang->getMangledName(GVar);
- Constant *C = GVar->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getTypeAllocSize(Type);
- unsigned Align = TD->getPreferredAlignmentLog(GVar);
- bool isDarwin = Subtarget->isTargetDarwin();
-
- printVisibility(name, GVar->getVisibility());
-
- if (Subtarget->isTargetELF())
- O << "\t.type " << name << ",%object\n";
-
- const MCSection *TheSection =
- getObjFileLowering().SectionForGlobal(GVar, Mang, TM);
- OutStreamer.SwitchSection(TheSection);
-
- // FIXME: get this stuff from section kind flags.
- if (C->isNullValue() && !GVar->hasSection() && !GVar->isThreadLocal() &&
- // Don't put things that should go in the cstring section into "comm".
- !TheSection->getKind().isMergeableCString()) {
- if (GVar->hasExternalLinkage()) {
- if (const char *Directive = MAI->getZeroFillDirective()) {
- O << "\t.globl\t" << name << "\n";
- O << Directive << "__DATA, __common, " << name << ", "
- << Size << ", " << Align << "\n";
- return;
- }
- }
-
- if (GVar->hasLocalLinkage() || GVar->isWeakForLinker()) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (isDarwin) {
- if (GVar->hasLocalLinkage()) {
- O << MAI->getLCOMMDirective() << name << "," << Size
- << ',' << Align;
- } else if (GVar->hasCommonLinkage()) {
- O << MAI->getCOMMDirective() << name << "," << Size
- << ',' << Align;
- } else {
- OutStreamer.SwitchSection(TheSection);
- O << "\t.globl " << name << '\n'
- << MAI->getWeakDefDirective() << name << '\n';
- EmitAlignment(Align, GVar);
- O << name << ":";
- if (VerboseAsm) {
- O << "\t\t\t\t" << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
- EmitGlobalConstant(C);
- return;
- }
- } else if (MAI->getLCOMMDirective() != NULL) {
- if (GVar->hasLocalLinkage()) {
- O << MAI->getLCOMMDirective() << name << "," << Size;
- } else {
- O << MAI->getCOMMDirective() << name << "," << Size;
- if (MAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
- }
- } else {
- if (GVar->hasLocalLinkage())
- O << "\t.local\t" << name << "\n";
- O << MAI->getCOMMDirective() << name << "," << Size;
- if (MAI->getCOMMDirectiveTakesAlignment())
- O << "," << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
- }
- if (VerboseAsm) {
- O << "\t\t" << MAI->getCommentString() << " ";
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << "\n";
- return;
- }
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::CommonLinkage:
- case GlobalValue::LinkOnceAnyLinkage:
- case GlobalValue::LinkOnceODRLinkage:
- case GlobalValue::WeakAnyLinkage:
- case GlobalValue::WeakODRLinkage:
- case GlobalValue::LinkerPrivateLinkage:
- if (isDarwin) {
- O << "\t.globl " << name << "\n"
- << "\t.weak_definition " << name << "\n";
- } else {
- O << "\t.weak " << name << "\n";
- }
- break;
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- case GlobalValue::ExternalLinkage:
- O << "\t.globl " << name << "\n";
- break;
- case GlobalValue::PrivateLinkage:
- case GlobalValue::InternalLinkage:
- break;
- default:
- llvm_unreachable("Unknown linkage type!");
- }
-
- EmitAlignment(Align, GVar);
- O << name << ":";
- if (VerboseAsm) {
- O << "\t\t\t\t" << MAI->getCommentString() << " ";
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << "\n";
- if (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size " << name << ", " << Size << "\n";
-
- EmitGlobalConstant(C);
- O << '\n';
-}
-
void ARMAsmPrinter::EmitEndOfAsmFile(Module &M) {
if (Subtarget->isTargetDarwin()) {
OutStreamer.SwitchSection(TLOFMacho.getNonLazySymbolPointerSection());
EmitAlignment(2);
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- Stubs[i].first->print(O, MAI);
- O << ":\n\t.indirect_symbol ";
- Stubs[i].second->print(O, MAI);
- O << "\n\t.long\t0\n";
+ O << *Stubs[i].first << ":\n\t.indirect_symbol ";
+ O << *Stubs[i].second << "\n\t.long\t0\n";
}
}
if (!Stubs.empty()) {
OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
EmitAlignment(2);
- for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- Stubs[i].first->print(O, MAI);
- O << ":\n\t.long ";
- Stubs[i].second->print(O, MAI);
- O << "\n";
- }
+ for (unsigned i = 0, e = Stubs.size(); i != e; ++i)
+ O << *Stubs[i].first << ":\n\t.long " << *Stubs[i].second << "\n";
}
// Funny Darwin hack: This flag tells the linker that no global symbols
// implementation of multiple entry points). If this doesn't occur, the
// linker can safely perform dead code stripping. Since LLVM never
// generates code that does this, it is always safe to set.
- OutStreamer.EmitAssemblerFlag(MCStreamer::SubsectionsViaSymbols);
+ OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
}
}
-// Force static initialization.
-extern "C" void LLVMInitializeARMAsmPrinter() {
- RegisterAsmPrinter<ARMAsmPrinter> X(TheARMTarget);
- RegisterAsmPrinter<ARMAsmPrinter> Y(TheThumbTarget);
-}
-
-
//===----------------------------------------------------------------------===//
void ARMAsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) {
- ARMMCInstLower MCInstLowering(OutContext, *Mang, getFunctionNumber(), *MAI);
+ ARMMCInstLower MCInstLowering(OutContext, *Mang, *this);
switch (MI->getOpcode()) {
+ case ARM::t2MOVi32imm:
+ assert(0 && "Should be lowered by thumb2it pass");
default: break;
- case TargetInstrInfo::DBG_LABEL:
- case TargetInstrInfo::EH_LABEL:
- case TargetInstrInfo::GC_LABEL:
- printLabel(MI);
- return;
- case TargetInstrInfo::KILL:
- return;
- case TargetInstrInfo::INLINEASM:
- O << '\t';
- printInlineAsm(MI);
- return;
- case TargetInstrInfo::IMPLICIT_DEF:
- printImplicitDef(MI);
- return;
case ARM::PICADD: { // FIXME: Remove asm string from td file.
// This is a pseudo op for a label + instruction sequence, which looks like:
// LPC0:
// FIXME: MOVE TO SHARED PLACE.
unsigned Id = (unsigned)MI->getOperand(2).getImm();
const char *Prefix = MAI->getPrivateGlobalPrefix();
- MCSymbol *Label =OutContext.GetOrCreateSymbol(Twine(Prefix)+"PC"+Twine(Id));
+ MCSymbol *Label =OutContext.GetOrCreateSymbol(Twine(Prefix)
+ + "PC" + Twine(getFunctionNumber()) + "_" + Twine(Id));
OutStreamer.EmitLabel(Label);
AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
AddInst.addOperand(MCOperand::CreateReg(ARM::PC));
AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg()));
- printMCInst(&AddInst);
+ OutStreamer.EmitInstruction(AddInst);
return;
}
case ARM::CONSTPOOL_ENTRY: { // FIXME: Remove asm string from td file.
unsigned CPIdx = (unsigned)MI->getOperand(1).getIndex();
EmitAlignment(2);
-
- const char *Prefix = MAI->getPrivateGlobalPrefix();
- MCSymbol *Label = OutContext.GetOrCreateSymbol(Twine(Prefix)+"CPI"+
- Twine(getFunctionNumber())+
- "_"+ Twine(LabelId));
- OutStreamer.EmitLabel(Label);
+ OutStreamer.EmitLabel(GetCPISymbol(LabelId));
const MachineConstantPoolEntry &MCPE = MCP->getConstants()[CPIdx];
if (MCPE.isMachineConstantPoolEntry())
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(3).getReg()));
TmpInst.addOperand(MCOperand::CreateReg(0)); // cc_out
- printMCInst(&TmpInst);
- O << '\n';
+ OutStreamer.EmitInstruction(TmpInst);
}
{
TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(3).getReg()));
TmpInst.addOperand(MCOperand::CreateReg(0)); // cc_out
- printMCInst(&TmpInst);
+ OutStreamer.EmitInstruction(TmpInst);
}
return;
}
- // FIXME: Also MOVi32imm.
-
+ case ARM::MOVi32imm: { // FIXME: Remove asmstring from td file.
+ // This is a hack that lowers as a two instruction sequence.
+ unsigned DstReg = MI->getOperand(0).getReg();
+ unsigned ImmVal = (unsigned)MI->getOperand(1).getImm();
+
+ {
+ MCInst TmpInst;
+ TmpInst.setOpcode(ARM::MOVi16);
+ TmpInst.addOperand(MCOperand::CreateReg(DstReg)); // dstreg
+ TmpInst.addOperand(MCOperand::CreateImm(ImmVal & 65535)); // lower16(imm)
+
+ // Predicate.
+ TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(2).getImm()));
+ TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(3).getReg()));
+
+ OutStreamer.EmitInstruction(TmpInst);
+ }
+
+ {
+ MCInst TmpInst;
+ TmpInst.setOpcode(ARM::MOVTi16);
+ TmpInst.addOperand(MCOperand::CreateReg(DstReg)); // dstreg
+ TmpInst.addOperand(MCOperand::CreateReg(DstReg)); // srcreg
+ TmpInst.addOperand(MCOperand::CreateImm(ImmVal >> 16)); // upper16(imm)
+ // Predicate.
+ TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(2).getImm()));
+ TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(3).getReg()));
+
+ OutStreamer.EmitInstruction(TmpInst);
+ }
+
+ return;
+ }
}
MCInst TmpInst;
MCInstLowering.Lower(MI, TmpInst);
-
- printMCInst(&TmpInst);
+ OutStreamer.EmitInstruction(TmpInst);
+}
+
+//===----------------------------------------------------------------------===//
+// Target Registry Stuff
+//===----------------------------------------------------------------------===//
+
+static MCInstPrinter *createARMMCInstPrinter(const Target &T,
+ unsigned SyntaxVariant,
+ const MCAsmInfo &MAI,
+ raw_ostream &O) {
+ if (SyntaxVariant == 0)
+ return new ARMInstPrinter(O, MAI, false);
+ return 0;
}
+
+// Force static initialization.
+extern "C" void LLVMInitializeARMAsmPrinter() {
+ RegisterAsmPrinter<ARMAsmPrinter> X(TheARMTarget);
+ RegisterAsmPrinter<ARMAsmPrinter> Y(TheThumbTarget);
+
+ TargetRegistry::RegisterMCInstPrinter(TheARMTarget, createARMMCInstPrinter);
+ TargetRegistry::RegisterMCInstPrinter(TheThumbTarget, createARMMCInstPrinter);
+}
+
projects / oota-llvm.git / blobdiff