#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 <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>();
}
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);
- virtual void printPICJumpTableSetLabel2(unsigned uid, unsigned uid2,
- const MachineBasicBlock *MBB) const;
+ 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.
#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" << *CurrentFnSym << "\n";
- break;
- case Function::LinkerPrivateLinkage:
- case Function::WeakAnyLinkage:
- case Function::WeakODRLinkage:
- case Function::LinkOnceAnyLinkage:
- case Function::LinkOnceODRLinkage:
- if (Subtarget->isTargetDarwin()) {
- O << "\t.globl\t" << *CurrentFnSym << "\n";
- O << "\t.weak_definition\t" << *CurrentFnSym << "\n";
- } else {
- O << MAI->getWeakRefDirective() << *CurrentFnSym << "\n";
- }
- break;
- }
-
- printVisibility(CurrentFnSym, 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" << *CurrentFnSym;
- O << "\n";
- } else {
- EmitAlignment(FnAlign, F);
- }
-
- O << *CurrentFnSym << ":\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 " << *CurrentFnSym << ", .-" << *CurrentFnSym << "\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,
break;
}
case MachineOperand::MO_MachineBasicBlock:
- O << *GetMBBSymbol(MO.getMBB()->getNumber());
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress: {
bool isCallOp = Modifier && !strcmp(Modifier, "call");
}
}
-void ARMAsmPrinter::printPICJumpTableSetLabel2(unsigned uid, unsigned uid2,
- const MachineBasicBlock *MBB) const {
- if (!MAI->getSetDirective())
- return;
-
- O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
+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() << ','
- << *GetMBBSymbol(MBB->getNumber())
- << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << uid << '_' << uid2 << '\n';
+ << "_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) {
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)
- printPICJumpTableSetLabel2(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_) {
- O << *GetMBBSymbol(MBB->getNumber())
- << '-' << MAI->getPrivateGlobalPrefix() << "JTI"
- << getFunctionNumber() << '_' << JTI << '_' << MO2.getImm();
- } else {
- O << *GetMBBSymbol(MBB->getNumber());
- }
+ 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());
- O << "-" << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << JTI << '_' << MO2.getImm() << ")/2";
- } else {
- O << "\tb.w " << *GetMBBSymbol(MBB->getNumber());
- }
+
+ if (ByteOffset || HalfWordOffset)
+ O << '(' << *MBB->getSymbol(OutContext) << "-" << *JTISymbol << ")/2";
+ else
+ O << "\tb.w " << *MBB->getSymbol(OutContext);
+
if (i != e-1)
O << '\n';
}
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);
+ O << '\n';
}
-
- if (VerboseAsm)
- EmitComments(*MI);
- O << '\n';
- processDebugLoc(MI, false);
}
void ARMAsmPrinter::EmitStartOfAsmFile(Module &M) {
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:
- printKill(MI);
- return;
- case TargetInstrInfo::INLINEASM:
- 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:
projects / oota-llvm.git / blobdiff