diff options
author | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
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committer | rdivacky <rdivacky@FreeBSD.org> | 2009-10-14 17:57:32 +0000 |
commit | cd749a9c07f1de2fb8affde90537efa4bc3e7c54 (patch) | |
tree | b21f6de4e08b89bb7931806bab798fc2a5e3a686 /lib/CodeGen/AsmPrinter/AsmPrinter.cpp | |
parent | 72621d11de5b873f1695f391eb95f0b336c3d2d4 (diff) | |
download | FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.zip FreeBSD-src-cd749a9c07f1de2fb8affde90537efa4bc3e7c54.tar.gz |
Update llvm to r84119.
Diffstat (limited to 'lib/CodeGen/AsmPrinter/AsmPrinter.cpp')
-rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 1194 |
1 files changed, 653 insertions, 541 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index 6d12581..8bc5ef9 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -18,16 +18,25 @@ #include "llvm/Module.h" #include "llvm/CodeGen/GCMetadataPrinter.h" #include "llvm/CodeGen/MachineConstantPool.h" +#include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineJumpTableInfo.h" +#include "llvm/CodeGen/MachineLoopInfo.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/DwarfWriter.h" #include "llvm/Analysis/DebugInfo.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCInst.h" +#include "llvm/MC/MCSection.h" +#include "llvm/MC/MCStreamer.h" +#include "llvm/MC/MCSymbol.h" #include "llvm/Support/CommandLine.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/FormattedStream.h" #include "llvm/Support/Mangler.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Target/TargetAsmInfo.h" +#include "llvm/MC/MCAsmInfo.h" #include "llvm/Target/TargetData.h" #include "llvm/Target/TargetLowering.h" +#include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetOptions.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/ADT/SmallPtrSet.h" @@ -41,12 +50,17 @@ AsmVerbose("asm-verbose", cl::desc("Add comments to directives."), cl::init(cl::BOU_UNSET)); char AsmPrinter::ID = 0; -AsmPrinter::AsmPrinter(raw_ostream &o, TargetMachine &tm, - const TargetAsmInfo *T, bool VDef) +AsmPrinter::AsmPrinter(formatted_raw_ostream &o, TargetMachine &tm, + const MCAsmInfo *T, bool VDef) : MachineFunctionPass(&ID), FunctionNumber(0), O(o), - TM(tm), TAI(T), TRI(tm.getRegisterInfo()), - IsInTextSection(false), LastMI(0), LastFn(0), Counter(~0U), - PrevDLT(0, ~0U, ~0U) { + TM(tm), MAI(T), TRI(tm.getRegisterInfo()), + + OutContext(*new MCContext()), + // FIXME: Pass instprinter to streamer. + OutStreamer(*createAsmStreamer(OutContext, O, *T, 0)), + + LastMI(0), LastFn(0), Counter(~0U), + PrevDLT(0, 0, ~0U, ~0U) { DW = 0; MMI = 0; switch (AsmVerbose) { case cl::BOU_UNSET: VerboseAsm = VDef; break; @@ -59,188 +73,124 @@ AsmPrinter::~AsmPrinter() { for (gcp_iterator I = GCMetadataPrinters.begin(), E = GCMetadataPrinters.end(); I != E; ++I) delete I->second; -} - -/// SwitchToTextSection - Switch to the specified text section of the executable -/// if we are not already in it! -/// -void AsmPrinter::SwitchToTextSection(const char *NewSection, - const GlobalValue *GV) { - std::string NS; - if (GV && GV->hasSection()) - NS = TAI->getSwitchToSectionDirective() + GV->getSection(); - else - NS = NewSection; - // If we're already in this section, we're done. - if (CurrentSection == NS) return; - - // Close the current section, if applicable. - if (TAI->getSectionEndDirectiveSuffix() && !CurrentSection.empty()) - O << CurrentSection << TAI->getSectionEndDirectiveSuffix() << '\n'; - - CurrentSection = NS; - - if (!CurrentSection.empty()) - O << CurrentSection << TAI->getTextSectionStartSuffix() << '\n'; - - IsInTextSection = true; + delete &OutStreamer; + delete &OutContext; } -/// SwitchToDataSection - Switch to the specified data section of the executable -/// if we are not already in it! -/// -void AsmPrinter::SwitchToDataSection(const char *NewSection, - const GlobalValue *GV) { - std::string NS; - if (GV && GV->hasSection()) - NS = TAI->getSwitchToSectionDirective() + GV->getSection(); - else - NS = NewSection; - - // If we're already in this section, we're done. - if (CurrentSection == NS) return; - - // Close the current section, if applicable. - if (TAI->getSectionEndDirectiveSuffix() && !CurrentSection.empty()) - O << CurrentSection << TAI->getSectionEndDirectiveSuffix() << '\n'; - - CurrentSection = NS; - - if (!CurrentSection.empty()) - O << CurrentSection << TAI->getDataSectionStartSuffix() << '\n'; - - IsInTextSection = false; +TargetLoweringObjectFile &AsmPrinter::getObjFileLowering() const { + return TM.getTargetLowering()->getObjFileLowering(); } -/// SwitchToSection - Switch to the specified section of the executable if we -/// are not already in it! -void AsmPrinter::SwitchToSection(const Section* NS) { - const std::string& NewSection = NS->getName(); - - // If we're already in this section, we're done. - if (CurrentSection == NewSection) return; - - // Close the current section, if applicable. - if (TAI->getSectionEndDirectiveSuffix() && !CurrentSection.empty()) - O << CurrentSection << TAI->getSectionEndDirectiveSuffix() << '\n'; - - // FIXME: Make CurrentSection a Section* in the future - CurrentSection = NewSection; - CurrentSection_ = NS; - - if (!CurrentSection.empty()) { - // If section is named we need to switch into it via special '.section' - // directive and also append funky flags. Otherwise - section name is just - // some magic assembler directive. - if (NS->isNamed()) - O << TAI->getSwitchToSectionDirective() - << CurrentSection - << TAI->getSectionFlags(NS->getFlags()); - else - O << CurrentSection; - O << TAI->getDataSectionStartSuffix() << '\n'; - } - - IsInTextSection = (NS->getFlags() & SectionFlags::Code); +/// getCurrentSection() - Return the current section we are emitting to. +const MCSection *AsmPrinter::getCurrentSection() const { + return OutStreamer.getCurrentSection(); } + void AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const { + AU.setPreservesAll(); MachineFunctionPass::getAnalysisUsage(AU); AU.addRequired<GCModuleInfo>(); + if (VerboseAsm) + AU.addRequired<MachineLoopInfo>(); } bool AsmPrinter::doInitialization(Module &M) { - Mang = new Mangler(M, TAI->getGlobalPrefix(), TAI->getPrivateGlobalPrefix()); + // Initialize TargetLoweringObjectFile. + const_cast<TargetLoweringObjectFile&>(getObjFileLowering()) + .Initialize(OutContext, TM); - if (TAI->doesAllowQuotesInName()) + Mang = new Mangler(M, MAI->getGlobalPrefix(), MAI->getPrivateGlobalPrefix(), + MAI->getLinkerPrivateGlobalPrefix()); + + if (MAI->doesAllowQuotesInName()) Mang->setUseQuotes(true); + + if (MAI->doesAllowNameToStartWithDigit()) + Mang->setSymbolsCanStartWithDigit(true); - GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>(); - assert(MI && "AsmPrinter didn't require GCModuleInfo?"); + // Allow the target to emit any magic that it wants at the start of the file. + EmitStartOfAsmFile(M); - if (TAI->hasSingleParameterDotFile()) { + if (MAI->hasSingleParameterDotFile()) { /* Very minimal debug info. It is ignored if we emit actual - debug info. If we don't, this at helps the user find where + debug info. If we don't, this at least helps the user find where a function came from. */ O << "\t.file\t\"" << M.getModuleIdentifier() << "\"\n"; } + GCModuleInfo *MI = getAnalysisIfAvailable<GCModuleInfo>(); + assert(MI && "AsmPrinter didn't require GCModuleInfo?"); for (GCModuleInfo::iterator I = MI->begin(), E = MI->end(); I != E; ++I) if (GCMetadataPrinter *MP = GetOrCreateGCPrinter(*I)) - MP->beginAssembly(O, *this, *TAI); + MP->beginAssembly(O, *this, *MAI); if (!M.getModuleInlineAsm().empty()) - O << TAI->getCommentString() << " Start of file scope inline assembly\n" + O << MAI->getCommentString() << " Start of file scope inline assembly\n" << M.getModuleInlineAsm() - << '\n' << TAI->getCommentString() + << '\n' << MAI->getCommentString() << " End of file scope inline assembly\n"; - SwitchToDataSection(""); // Reset back to no section. - - if (TAI->doesSupportDebugInformation() || - TAI->doesSupportExceptionHandling()) { - MMI = getAnalysisIfAvailable<MachineModuleInfo>(); - if (MMI) - MMI->AnalyzeModule(M); - DW = getAnalysisIfAvailable<DwarfWriter>(); - if (DW) - DW->BeginModule(&M, MMI, O, this, TAI); - } + MMI = getAnalysisIfAvailable<MachineModuleInfo>(); + if (MMI) + MMI->AnalyzeModule(M); + DW = getAnalysisIfAvailable<DwarfWriter>(); + if (DW) + DW->BeginModule(&M, MMI, O, this, MAI); return false; } bool AsmPrinter::doFinalization(Module &M) { + // Emit global variables. + for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); + I != E; ++I) + PrintGlobalVariable(I); + // Emit final debug information. - if (TAI->doesSupportDebugInformation() || TAI->doesSupportExceptionHandling()) + if (MAI->doesSupportDebugInformation() || MAI->doesSupportExceptionHandling()) DW->EndModule(); // If the target wants to know about weak references, print them all. - if (TAI->getWeakRefDirective()) { + if (MAI->getWeakRefDirective()) { // FIXME: This is not lazy, it would be nice to only print weak references // to stuff that is actually used. Note that doing so would require targets // to notice uses in operands (due to constant exprs etc). This should // happen with the MC stuff eventually. - SwitchToDataSection(""); // Print out module-level global variables here. for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I) { if (I->hasExternalWeakLinkage()) - O << TAI->getWeakRefDirective() << Mang->getValueName(I) << '\n'; + O << MAI->getWeakRefDirective() << Mang->getMangledName(I) << '\n'; } - for (Module::const_iterator I = M.begin(), E = M.end(); - I != E; ++I) { + for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I) { if (I->hasExternalWeakLinkage()) - O << TAI->getWeakRefDirective() << Mang->getValueName(I) << '\n'; + O << MAI->getWeakRefDirective() << Mang->getMangledName(I) << '\n'; } } - if (TAI->getSetDirective()) { - if (!M.alias_empty()) - SwitchToSection(TAI->getTextSection()); - + if (MAI->getSetDirective()) { O << '\n'; for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end(); I != E; ++I) { - std::string Name = Mang->getValueName(I); - std::string Target; + std::string Name = Mang->getMangledName(I); const GlobalValue *GV = cast<GlobalValue>(I->getAliasedGlobal()); - Target = Mang->getValueName(GV); + std::string Target = Mang->getMangledName(GV); - if (I->hasExternalLinkage() || !TAI->getWeakRefDirective()) + if (I->hasExternalLinkage() || !MAI->getWeakRefDirective()) O << "\t.globl\t" << Name << '\n'; else if (I->hasWeakLinkage()) - O << TAI->getWeakRefDirective() << Name << '\n'; + O << MAI->getWeakRefDirective() << Name << '\n'; else if (!I->hasLocalLinkage()) - assert(0 && "Invalid alias linkage"); + llvm_unreachable("Invalid alias linkage"); printVisibility(Name, I->getVisibility()); - O << TAI->getSetDirective() << ' ' << Name << ", " << Target << '\n'; + O << MAI->getSetDirective() << ' ' << Name << ", " << Target << '\n'; } } @@ -248,45 +198,43 @@ bool AsmPrinter::doFinalization(Module &M) { assert(MI && "AsmPrinter didn't require GCModuleInfo?"); for (GCModuleInfo::iterator I = MI->end(), E = MI->begin(); I != E; ) if (GCMetadataPrinter *MP = GetOrCreateGCPrinter(*--I)) - MP->finishAssembly(O, *this, *TAI); + MP->finishAssembly(O, *this, *MAI); // If we don't have any trampolines, then we don't require stack memory // to be executable. Some targets have a directive to declare this. Function *InitTrampolineIntrinsic = M.getFunction("llvm.init.trampoline"); if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty()) - if (TAI->getNonexecutableStackDirective()) - O << TAI->getNonexecutableStackDirective() << '\n'; + if (MAI->getNonexecutableStackDirective()) + O << MAI->getNonexecutableStackDirective() << '\n'; + + // Allow the target to emit any magic that it wants at the end of the file, + // after everything else has gone out. + EmitEndOfAsmFile(M); + delete Mang; Mang = 0; DW = 0; MMI = 0; + + OutStreamer.Finish(); return false; } -const std::string & -AsmPrinter::getCurrentFunctionEHName(const MachineFunction *MF, - std::string &Name) const { - assert(MF && "No machine function?"); - Name = MF->getFunction()->getName(); - if (Name.empty()) - Name = Mang->getValueName(MF->getFunction()); - Name = Mang->makeNameProper(TAI->getEHGlobalPrefix() + - Name + ".eh", TAI->getGlobalPrefix()); - return Name; -} - void AsmPrinter::SetupMachineFunction(MachineFunction &MF) { // What's my mangled name? - CurrentFnName = Mang->getValueName(MF.getFunction()); + CurrentFnName = Mang->getMangledName(MF.getFunction()); IncrementFunctionNumber(); + + if (VerboseAsm) + LI = &getAnalysis<MachineLoopInfo>(); } namespace { // SectionCPs - Keep track the alignment, constpool entries per Section. struct SectionCPs { - const Section *S; + const MCSection *S; unsigned Alignment; SmallVector<unsigned, 4> CPEs; - SectionCPs(const Section *s, unsigned a) : S(s), Alignment(a) {}; + SectionCPs(const MCSection *s, unsigned a) : S(s), Alignment(a) {}; }; } @@ -303,9 +251,27 @@ void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) { // the same section together to reduce amount of section switch statements. SmallVector<SectionCPs, 4> CPSections; for (unsigned i = 0, e = CP.size(); i != e; ++i) { - MachineConstantPoolEntry CPE = CP[i]; + const MachineConstantPoolEntry &CPE = CP[i]; unsigned Align = CPE.getAlignment(); - const Section* S = TAI->SelectSectionForMachineConst(CPE.getType()); + + SectionKind Kind; + switch (CPE.getRelocationInfo()) { + default: llvm_unreachable("Unknown section kind"); + case 2: Kind = SectionKind::getReadOnlyWithRel(); break; + case 1: + Kind = SectionKind::getReadOnlyWithRelLocal(); + break; + case 0: + switch (TM.getTargetData()->getTypeAllocSize(CPE.getType())) { + case 4: Kind = SectionKind::getMergeableConst4(); break; + case 8: Kind = SectionKind::getMergeableConst8(); break; + case 16: Kind = SectionKind::getMergeableConst16();break; + default: Kind = SectionKind::getMergeableConst(); break; + } + } + + const MCSection *S = getObjFileLowering().getSectionForConstant(Kind); + // The number of sections are small, just do a linear search from the // last section to the first. bool Found = false; @@ -328,7 +294,7 @@ void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) { // Now print stuff into the calculated sections. for (unsigned i = 0, e = CPSections.size(); i != e; ++i) { - SwitchToSection(CPSections[i].S); + OutStreamer.SwitchSection(CPSections[i].S); EmitAlignment(Log2_32(CPSections[i].Alignment)); unsigned Offset = 0; @@ -344,11 +310,12 @@ void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) { const Type *Ty = CPE.getType(); Offset = NewOffset + TM.getTargetData()->getTypeAllocSize(Ty); - O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_' - << CPI << ":\t\t\t\t\t"; + O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_' + << CPI << ':'; if (VerboseAsm) { - O << TAI->getCommentString() << ' '; - WriteTypeSymbolic(O, CPE.getType(), 0); + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " constant "; + WriteTypeSymbolic(O, CPE.getType(), MF->getFunction()->getParent()); } O << '\n'; if (CPE.isMachineConstantPoolEntry()) @@ -373,20 +340,21 @@ void AsmPrinter::EmitJumpTableInfo(MachineJumpTableInfo *MJTI, // the appropriate section. TargetLowering *LoweringInfo = TM.getTargetLowering(); - const char* JumpTableDataSection = TAI->getJumpTableDataSection(); const Function *F = MF.getFunction(); - unsigned SectionFlags = TAI->SectionFlagsForGlobal(F); bool JTInDiffSection = false; - if ((IsPic && !(LoweringInfo && LoweringInfo->usesGlobalOffsetTable())) || - !JumpTableDataSection || - SectionFlags & SectionFlags::Linkonce) { + if (F->isWeakForLinker() || + (IsPic && !LoweringInfo->usesGlobalOffsetTable())) { // In PIC mode, we need to emit the jump table to the same section as the // function body itself, otherwise the label differences won't make sense. // We should also do if the section name is NULL or function is declared in // discardable section. - SwitchToSection(TAI->SectionForGlobal(F)); + OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, + TM)); } else { - SwitchToDataSection(JumpTableDataSection); + // Otherwise, drop it in the readonly section. + const MCSection *ReadOnlySection = + getObjFileLowering().getSectionForConstant(SectionKind::getReadOnly()); + OutStreamer.SwitchSection(ReadOnlySection); JTInDiffSection = true; } @@ -402,21 +370,21 @@ void AsmPrinter::EmitJumpTableInfo(MachineJumpTableInfo *MJTI, // the number of relocations the assembler will generate for the jump table. // Set directives are all printed before the jump table itself. SmallPtrSet<MachineBasicBlock*, 16> EmittedSets; - if (TAI->getSetDirective() && IsPic) + if (MAI->getSetDirective() && IsPic) for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) if (EmittedSets.insert(JTBBs[ii])) printPICJumpTableSetLabel(i, JTBBs[ii]); - // On some targets (e.g. darwin) we want to emit two consequtive labels + // On some targets (e.g. Darwin) we want to emit two consequtive labels // before each jump table. The first label is never referenced, but tells // the assembler and linker the extents of the jump table object. The // second label is actually referenced by the code. - if (JTInDiffSection) { - if (const char *JTLabelPrefix = TAI->getJumpTableSpecialLabelPrefix()) - O << JTLabelPrefix << "JTI" << getFunctionNumber() << '_' << i << ":\n"; + if (JTInDiffSection && MAI->getLinkerPrivateGlobalPrefix()[0]) { + O << MAI->getLinkerPrivateGlobalPrefix() + << "JTI" << getFunctionNumber() << '_' << i << ":\n"; } - O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() + O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_' << i << ":\n"; for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) { @@ -429,15 +397,15 @@ void AsmPrinter::EmitJumpTableInfo(MachineJumpTableInfo *MJTI, void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI, const MachineBasicBlock *MBB, unsigned uid) const { - bool IsPic = TM.getRelocationModel() == Reloc::PIC_; + bool isPIC = TM.getRelocationModel() == Reloc::PIC_; // Use JumpTableDirective otherwise honor the entry size from the jump table // info. - const char *JTEntryDirective = TAI->getJumpTableDirective(); + const char *JTEntryDirective = MAI->getJumpTableDirective(isPIC); bool HadJTEntryDirective = JTEntryDirective != NULL; if (!HadJTEntryDirective) { JTEntryDirective = MJTI->getEntrySize() == 4 ? - TAI->getData32bitsDirective() : TAI->getData64bitsDirective(); + MAI->getData32bitsDirective() : MAI->getData64bitsDirective(); } O << JTEntryDirective << ' '; @@ -447,20 +415,18 @@ void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI, // emit the table entries as differences between two text section labels. // If we're emitting non-PIC code, then emit the entries as direct // references to the target basic blocks. - if (IsPic) { - if (TAI->getSetDirective()) { - O << TAI->getPrivateGlobalPrefix() << getFunctionNumber() - << '_' << uid << "_set_" << MBB->getNumber(); - } else { - printBasicBlockLabel(MBB, false, false, false); - // If the arch uses custom Jump Table directives, don't calc relative to - // JT - if (!HadJTEntryDirective) - O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" - << getFunctionNumber() << '_' << uid; - } + if (!isPIC) { + GetMBBSymbol(MBB->getNumber())->print(O, MAI); + } else if (MAI->getSetDirective()) { + O << MAI->getPrivateGlobalPrefix() << getFunctionNumber() + << '_' << uid << "_set_" << MBB->getNumber(); } else { - printBasicBlockLabel(MBB, false, false, false); + GetMBBSymbol(MBB->getNumber())->print(O, MAI); + // If the arch uses custom Jump Table directives, don't calc relative to + // JT + if (!HadJTEntryDirective) + O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" + << getFunctionNumber() << '_' << uid; } } @@ -470,12 +436,12 @@ void AsmPrinter::printPICJumpTableEntry(const MachineJumpTableInfo *MJTI, /// do nothing and return false. bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) { if (GV->getName() == "llvm.used") { - if (TAI->getUsedDirective() != 0) // No need to emit this at all. + if (MAI->getUsedDirective() != 0) // No need to emit this at all. EmitLLVMUsedList(GV->getInitializer()); return true; } - // Ignore debug and non-emitted data. + // Ignore debug and non-emitted data. This handles llvm.compiler.used. if (GV->getSection() == "llvm.metadata" || GV->hasAvailableExternallyLinkage()) return true; @@ -487,14 +453,14 @@ bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) { const TargetData *TD = TM.getTargetData(); unsigned Align = Log2_32(TD->getPointerPrefAlignment()); if (GV->getName() == "llvm.global_ctors") { - SwitchToDataSection(TAI->getStaticCtorsSection()); + OutStreamer.SwitchSection(getObjFileLowering().getStaticCtorSection()); EmitAlignment(Align, 0); EmitXXStructorList(GV->getInitializer()); return true; } if (GV->getName() == "llvm.global_dtors") { - SwitchToDataSection(TAI->getStaticDtorsSection()); + OutStreamer.SwitchSection(getObjFileLowering().getStaticDtorSection()); EmitAlignment(Align, 0); EmitXXStructorList(GV->getInitializer()); return true; @@ -503,45 +469,20 @@ bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) { return false; } -/// findGlobalValue - if CV is an expression equivalent to a single -/// global value, return that value. -const GlobalValue * AsmPrinter::findGlobalValue(const Constant *CV) { - if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV)) - return GV; - else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) { - const TargetData *TD = TM.getTargetData(); - unsigned Opcode = CE->getOpcode(); - switch (Opcode) { - case Instruction::GetElementPtr: { - const Constant *ptrVal = CE->getOperand(0); - SmallVector<Value*, 8> idxVec(CE->op_begin()+1, CE->op_end()); - if (TD->getIndexedOffset(ptrVal->getType(), &idxVec[0], idxVec.size())) - return 0; - return findGlobalValue(ptrVal); - } - case Instruction::BitCast: - return findGlobalValue(CE->getOperand(0)); - default: - return 0; - } - } - return 0; -} - -/// EmitLLVMUsedList - For targets that define a TAI::UsedDirective, mark each +/// EmitLLVMUsedList - For targets that define a MAI::UsedDirective, mark each /// global in the specified llvm.used list for which emitUsedDirectiveFor /// is true, as being used with this directive. - void AsmPrinter::EmitLLVMUsedList(Constant *List) { - const char *Directive = TAI->getUsedDirective(); + const char *Directive = MAI->getUsedDirective(); // Should be an array of 'i8*'. ConstantArray *InitList = dyn_cast<ConstantArray>(List); if (InitList == 0) return; for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) { - const GlobalValue *GV = findGlobalValue(InitList->getOperand(i)); - if (TAI->emitUsedDirectiveFor(GV, Mang)) { + const GlobalValue *GV = + dyn_cast<GlobalValue>(InitList->getOperand(i)->stripPointerCasts()); + if (GV && getObjFileLowering().shouldEmitUsedDirectiveFor(GV, Mang)) { O << Directive; EmitConstantValueOnly(InitList->getOperand(i)); O << '\n'; @@ -567,32 +508,6 @@ void AsmPrinter::EmitXXStructorList(Constant *List) { } } -/// getGlobalLinkName - Returns the asm/link name of of the specified -/// global variable. Should be overridden by each target asm printer to -/// generate the appropriate value. -const std::string &AsmPrinter::getGlobalLinkName(const GlobalVariable *GV, - std::string &LinkName) const { - if (isa<Function>(GV)) { - LinkName += TAI->getFunctionAddrPrefix(); - LinkName += Mang->getValueName(GV); - LinkName += TAI->getFunctionAddrSuffix(); - } else { - LinkName += TAI->getGlobalVarAddrPrefix(); - LinkName += Mang->getValueName(GV); - LinkName += TAI->getGlobalVarAddrSuffix(); - } - - return LinkName; -} - -/// EmitExternalGlobal - Emit the external reference to a global variable. -/// Should be overridden if an indirect reference should be used. -void AsmPrinter::EmitExternalGlobal(const GlobalVariable *GV) { - std::string GLN; - O << getGlobalLinkName(GV, GLN); -} - - //===----------------------------------------------------------------------===// /// LEB 128 number encoding. @@ -646,8 +561,8 @@ void AsmPrinter::EOL() const { void AsmPrinter::EOL(const std::string &Comment) const { if (VerboseAsm && !Comment.empty()) { - O << '\t' - << TAI->getCommentString() + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << ' ' << Comment; } @@ -656,22 +571,72 @@ void AsmPrinter::EOL(const std::string &Comment) const { void AsmPrinter::EOL(const char* Comment) const { if (VerboseAsm && *Comment) { - O << '\t' - << TAI->getCommentString() + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << ' ' << Comment; } O << '\n'; } +static const char *DecodeDWARFEncoding(unsigned Encoding) { + switch (Encoding) { + case dwarf::DW_EH_PE_absptr: + return "absptr"; + case dwarf::DW_EH_PE_omit: + return "omit"; + case dwarf::DW_EH_PE_pcrel: + return "pcrel"; + case dwarf::DW_EH_PE_udata4: + return "udata4"; + case dwarf::DW_EH_PE_udata8: + return "udata8"; + case dwarf::DW_EH_PE_sdata4: + return "sdata4"; + case dwarf::DW_EH_PE_sdata8: + return "sdata8"; + case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata4: + return "pcrel udata4"; + case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4: + return "pcrel sdata4"; + case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8: + return "pcrel udata8"; + case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8: + return "pcrel sdata8"; + case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata4: + return "indirect pcrel udata4"; + case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata4: + return "indirect pcrel sdata4"; + case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata8: + return "indirect pcrel udata8"; + case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata8: + return "indirect pcrel sdata8"; + } + + return 0; +} + +void AsmPrinter::EOL(const char *Comment, unsigned Encoding) const { + if (VerboseAsm && *Comment) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << ' ' + << Comment; + + if (const char *EncStr = DecodeDWARFEncoding(Encoding)) + O << " (" << EncStr << ')'; + } + O << '\n'; +} + /// EmitULEB128Bytes - Emit an assembler byte data directive to compose an /// unsigned leb128 value. void AsmPrinter::EmitULEB128Bytes(unsigned Value) const { - if (TAI->hasLEB128()) { + if (MAI->hasLEB128()) { O << "\t.uleb128\t" << Value; } else { - O << TAI->getData8bitsDirective(); + O << MAI->getData8bitsDirective(); PrintULEB128(Value); } } @@ -679,11 +644,11 @@ void AsmPrinter::EmitULEB128Bytes(unsigned Value) const { /// EmitSLEB128Bytes - print an assembler byte data directive to compose a /// signed leb128 value. void AsmPrinter::EmitSLEB128Bytes(int Value) const { - if (TAI->hasLEB128()) { + if (MAI->hasLEB128()) { O << "\t.sleb128\t" << Value; } else { - O << TAI->getData8bitsDirective(); + O << MAI->getData8bitsDirective(); PrintSLEB128(Value); } } @@ -691,29 +656,29 @@ void AsmPrinter::EmitSLEB128Bytes(int Value) const { /// EmitInt8 - Emit a byte directive and value. /// void AsmPrinter::EmitInt8(int Value) const { - O << TAI->getData8bitsDirective(); + O << MAI->getData8bitsDirective(); PrintHex(Value & 0xFF); } /// EmitInt16 - Emit a short directive and value. /// void AsmPrinter::EmitInt16(int Value) const { - O << TAI->getData16bitsDirective(); + O << MAI->getData16bitsDirective(); PrintHex(Value & 0xFFFF); } /// EmitInt32 - Emit a long directive and value. /// void AsmPrinter::EmitInt32(int Value) const { - O << TAI->getData32bitsDirective(); + O << MAI->getData32bitsDirective(); PrintHex(Value); } /// EmitInt64 - Emit a long long directive and value. /// void AsmPrinter::EmitInt64(uint64_t Value) const { - if (TAI->getData64bitsDirective()) { - O << TAI->getData64bitsDirective(); + if (MAI->getData64bitsDirective()) { + O << MAI->getData64bitsDirective(); PrintHex(Value); } else { if (TM.getTargetData()->isBigEndian()) { @@ -734,7 +699,7 @@ static inline char toOctal(int X) { /// printStringChar - Print a char, escaped if necessary. /// -static void printStringChar(raw_ostream &O, unsigned char C) { +static void printStringChar(formatted_raw_ostream &O, unsigned char C) { if (C == '"') { O << "\\\""; } else if (C == '\\') { @@ -766,11 +731,11 @@ void AsmPrinter::EmitString(const std::string &String) const { } void AsmPrinter::EmitString(const char *String, unsigned Size) const { - const char* AscizDirective = TAI->getAscizDirective(); + const char* AscizDirective = MAI->getAscizDirective(); if (AscizDirective) O << AscizDirective; else - O << TAI->getAsciiDirective(); + O << MAI->getAsciiDirective(); O << '\"'; for (unsigned i = 0; i < Size; ++i) printStringChar(O, String[i]); @@ -813,31 +778,26 @@ void AsmPrinter::EmitAlignment(unsigned NumBits, const GlobalValue *GV, NumBits = std::max(NumBits, ForcedAlignBits); if (NumBits == 0) return; // No need to emit alignment. - if (TAI->getAlignmentIsInBytes()) NumBits = 1 << NumBits; - O << TAI->getAlignDirective() << NumBits; - - unsigned FillValue = TAI->getTextAlignFillValue(); - UseFillExpr &= IsInTextSection && FillValue; - if (UseFillExpr) { - O << ','; - PrintHex(FillValue); - } - O << '\n'; + + unsigned FillValue = 0; + if (getCurrentSection()->getKind().isText()) + FillValue = MAI->getTextAlignFillValue(); + + OutStreamer.EmitValueToAlignment(1 << NumBits, FillValue, 1, 0); } - /// EmitZeros - Emit a block of zeros. /// void AsmPrinter::EmitZeros(uint64_t NumZeros, unsigned AddrSpace) const { if (NumZeros) { - if (TAI->getZeroDirective()) { - O << TAI->getZeroDirective() << NumZeros; - if (TAI->getZeroDirectiveSuffix()) - O << TAI->getZeroDirectiveSuffix(); + if (MAI->getZeroDirective()) { + O << MAI->getZeroDirective() << NumZeros; + if (MAI->getZeroDirectiveSuffix()) + O << MAI->getZeroDirectiveSuffix(); O << '\n'; } else { for (; NumZeros; --NumZeros) - O << TAI->getData8bitsDirective(AddrSpace) << "0\n"; + O << MAI->getData8bitsDirective(AddrSpace) << "0\n"; } } } @@ -851,22 +811,22 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) { O << CI->getZExtValue(); } else if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV)) { // This is a constant address for a global variable or function. Use the - // name of the variable or function as the address value, possibly - // decorating it with GlobalVarAddrPrefix/Suffix or - // FunctionAddrPrefix/Suffix (these all default to "" ) - if (isa<Function>(GV)) { - O << TAI->getFunctionAddrPrefix() - << Mang->getValueName(GV) - << TAI->getFunctionAddrSuffix(); - } else { - O << TAI->getGlobalVarAddrPrefix() - << Mang->getValueName(GV) - << TAI->getGlobalVarAddrSuffix(); - } + // name of the variable or function as the address value. + O << Mang->getMangledName(GV); } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) { const TargetData *TD = TM.getTargetData(); unsigned Opcode = CE->getOpcode(); switch (Opcode) { + case Instruction::Trunc: + case Instruction::ZExt: + case Instruction::SExt: + case Instruction::FPTrunc: + case Instruction::FPExt: + case Instruction::UIToFP: + case Instruction::SIToFP: + case Instruction::FPToUI: + case Instruction::FPToSI: + llvm_unreachable("FIXME: Don't support this constant cast expr"); case Instruction::GetElementPtr: { // generate a symbolic expression for the byte address const Constant *ptrVal = CE->getOperand(0); @@ -891,17 +851,6 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) { } break; } - case Instruction::Trunc: - case Instruction::ZExt: - case Instruction::SExt: - case Instruction::FPTrunc: - case Instruction::FPExt: - case Instruction::UIToFP: - case Instruction::SIToFP: - case Instruction::FPToUI: - case Instruction::FPToSI: - assert(0 && "FIXME: Don't yet support this kind of constant cast expr"); - break; case Instruction::BitCast: return EmitConstantValueOnly(CE->getOperand(0)); @@ -909,7 +858,8 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) { // Handle casts to pointers by changing them into casts to the appropriate // integer type. This promotes constant folding and simplifies this code. Constant *Op = CE->getOperand(0); - Op = ConstantExpr::getIntegerCast(Op, TD->getIntPtrType(), false/*ZExt*/); + Op = ConstantExpr::getIntegerCast(Op, TD->getIntPtrType(CV->getContext()), + false/*ZExt*/); return EmitConstantValueOnly(Op); } @@ -922,16 +872,17 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) { // We can emit the pointer value into this slot if the slot is an // integer slot greater or equal to the size of the pointer. - if (TD->getTypeAllocSize(Ty) >= TD->getTypeAllocSize(Op->getType())) + if (TD->getTypeAllocSize(Ty) == TD->getTypeAllocSize(Op->getType())) return EmitConstantValueOnly(Op); O << "(("; EmitConstantValueOnly(Op); - APInt ptrMask = APInt::getAllOnesValue(TD->getTypeAllocSizeInBits(Ty)); + APInt ptrMask = + APInt::getAllOnesValue(TD->getTypeAllocSizeInBits(Op->getType())); SmallString<40> S; ptrMask.toStringUnsigned(S); - O << ") & " << S.c_str() << ')'; + O << ") & " << S.str() << ')'; break; } case Instruction::Add: @@ -966,17 +917,17 @@ void AsmPrinter::EmitConstantValueOnly(const Constant *CV) { O << ')'; break; default: - assert(0 && "Unsupported operator!"); + llvm_unreachable("Unsupported operator!"); } } else { - assert(0 && "Unknown constant value!"); + llvm_unreachable("Unknown constant value!"); } } /// printAsCString - Print the specified array as a C compatible string, only if /// the predicate isString is true. /// -static void printAsCString(raw_ostream &O, const ConstantArray *CVA, +static void printAsCString(formatted_raw_ostream &O, const ConstantArray *CVA, unsigned LastElt) { assert(CVA->isString() && "Array is not string compatible!"); @@ -993,12 +944,12 @@ static void printAsCString(raw_ostream &O, const ConstantArray *CVA, /// void AsmPrinter::EmitString(const ConstantArray *CVA) const { unsigned NumElts = CVA->getNumOperands(); - if (TAI->getAscizDirective() && NumElts && + if (MAI->getAscizDirective() && NumElts && cast<ConstantInt>(CVA->getOperand(NumElts-1))->getZExtValue() == 0) { - O << TAI->getAscizDirective(); + O << MAI->getAscizDirective(); printAsCString(O, CVA, NumElts-1); } else { - O << TAI->getAsciiDirective(); + O << MAI->getAsciiDirective(); printAsCString(O, CVA, NumElts); } O << '\n'; @@ -1053,48 +1004,65 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace) { // FP Constants are printed as integer constants to avoid losing // precision... + LLVMContext &Context = CFP->getContext(); const TargetData *TD = TM.getTargetData(); - if (CFP->getType() == Type::DoubleTy) { + if (CFP->getType()->isDoubleTy()) { double Val = CFP->getValueAPF().convertToDouble(); // for comment only uint64_t i = CFP->getValueAPF().bitcastToAPInt().getZExtValue(); - if (TAI->getData64bitsDirective(AddrSpace)) { - O << TAI->getData64bitsDirective(AddrSpace) << i; - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " double value: " << Val; + if (MAI->getData64bitsDirective(AddrSpace)) { + O << MAI->getData64bitsDirective(AddrSpace) << i; + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " double " << Val; + } O << '\n'; } else if (TD->isBigEndian()) { - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(i >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " double most significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(i >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant word of double " << Val; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(i); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " double least significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(i); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant word of double " << Val; + } O << '\n'; } else { - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(i); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " double least significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(i); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant word of double " << Val; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(i >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " double most significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(i >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant word of double " << Val; + } O << '\n'; } return; - } else if (CFP->getType() == Type::FloatTy) { + } + + if (CFP->getType()->isFloatTy()) { float Val = CFP->getValueAPF().convertToFloat(); // for comment only - O << TAI->getData32bitsDirective(AddrSpace) + O << MAI->getData32bitsDirective(AddrSpace) << CFP->getValueAPF().bitcastToAPInt().getZExtValue(); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " float " << Val; + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " float " << Val; + } O << '\n'; return; - } else if (CFP->getType() == Type::X86_FP80Ty) { + } + + if (CFP->getType()->isX86_FP80Ty()) { // all long double variants are printed as hex // api needed to prevent premature destruction APInt api = CFP->getValueAPF().bitcastToAPInt(); @@ -1105,110 +1073,148 @@ void AsmPrinter::EmitGlobalConstantFP(const ConstantFP *CFP, DoubleVal.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &ignored); if (TD->isBigEndian()) { - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[1]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double most significant halfword of ~" + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[1]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant halfword of x86_fp80 ~" << DoubleVal.convertToDouble(); + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 48); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 48); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 16); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 16); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double least significant halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant halfword"; + } O << '\n'; } else { - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double least significant halfword of ~" + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant halfword of x86_fp80 ~" << DoubleVal.convertToDouble(); + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 16); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 16); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 48); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[0] >> 48); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next halfword"; + } O << '\n'; - O << TAI->getData16bitsDirective(AddrSpace) << uint16_t(p[1]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double most significant halfword"; + O << MAI->getData16bitsDirective(AddrSpace) << uint16_t(p[1]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant halfword"; + } O << '\n'; } - EmitZeros(TD->getTypeAllocSize(Type::X86_FP80Ty) - - TD->getTypeStoreSize(Type::X86_FP80Ty), AddrSpace); + EmitZeros(TD->getTypeAllocSize(Type::getX86_FP80Ty(Context)) - + TD->getTypeStoreSize(Type::getX86_FP80Ty(Context)), AddrSpace); return; - } else if (CFP->getType() == Type::PPC_FP128Ty) { + } + + if (CFP->getType()->isPPC_FP128Ty()) { // all long double variants are printed as hex // api needed to prevent premature destruction APInt api = CFP->getValueAPF().bitcastToAPInt(); const uint64_t *p = api.getRawData(); if (TD->isBigEndian()) { - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double most significant word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant word of ppc_fp128"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next word"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next word"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double least significant word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant word"; + } O << '\n'; } else { - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double least significant word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant word of ppc_fp128"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[1] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next word"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0]); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double next word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0]); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " next word"; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0] >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " long double most significant word"; + O << MAI->getData32bitsDirective(AddrSpace) << uint32_t(p[0] >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant word"; + } O << '\n'; } return; - } else assert(0 && "Floating point constant type not handled"); + } else llvm_unreachable("Floating point constant type not handled"); } void AsmPrinter::EmitGlobalConstantLargeInt(const ConstantInt *CI, @@ -1229,29 +1235,37 @@ void AsmPrinter::EmitGlobalConstantLargeInt(const ConstantInt *CI, else Val = RawData[i]; - if (TAI->getData64bitsDirective(AddrSpace)) - O << TAI->getData64bitsDirective(AddrSpace) << Val << '\n'; + if (MAI->getData64bitsDirective(AddrSpace)) + O << MAI->getData64bitsDirective(AddrSpace) << Val << '\n'; else if (TD->isBigEndian()) { - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " Double-word most significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant half of i64 " << Val; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(Val); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " Double-word least significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant half of i64 " << Val; + } O << '\n'; } else { - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(Val); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " Double-word least significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " least significant half of i64 " << Val; + } O << '\n'; - O << TAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32); - if (VerboseAsm) - O << '\t' << TAI->getCommentString() - << " Double-word most significant word " << Val; + O << MAI->getData32bitsDirective(AddrSpace) << unsigned(Val >> 32); + if (VerboseAsm) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() + << " most significant half of i64 " << Val; + } O << '\n'; } } @@ -1292,7 +1306,8 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) { if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) { SmallString<40> S; CI->getValue().toStringUnsigned(S, 16); - O << "\t\t\t" << TAI->getCommentString() << " 0x" << S.c_str(); + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " 0x" << S.str(); } } O << '\n'; @@ -1300,7 +1315,7 @@ void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) { void AsmPrinter::EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) { // Target doesn't support this yet! - abort(); + llvm_unreachable("Target does not support EmitMachineConstantPoolValue"); } /// PrintSpecial - Print information related to the specified machine instr @@ -1311,10 +1326,10 @@ void AsmPrinter::EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) { /// for their own strange codes. void AsmPrinter::PrintSpecial(const MachineInstr *MI, const char *Code) const { if (!strcmp(Code, "private")) { - O << TAI->getPrivateGlobalPrefix(); + O << MAI->getPrivateGlobalPrefix(); } else if (!strcmp(Code, "comment")) { if (VerboseAsm) - O << TAI->getCommentString(); + O << MAI->getCommentString(); } else if (!strcmp(Code, "uid")) { // Comparing the address of MI isn't sufficient, because machineinstrs may // be allocated to the same address across functions. @@ -1328,23 +1343,38 @@ void AsmPrinter::PrintSpecial(const MachineInstr *MI, const char *Code) const { } O << Counter; } else { - cerr << "Unknown special formatter '" << Code + std::string msg; + raw_string_ostream Msg(msg); + Msg << "Unknown special formatter '" << Code << "' for machine instr: " << *MI; - exit(1); + llvm_report_error(Msg.str()); } } /// processDebugLoc - Processes the debug information of each machine /// instruction's DebugLoc. -void AsmPrinter::processDebugLoc(DebugLoc DL) { - if (TAI->doesSupportDebugInformation() && DW->ShouldEmitDwarfDebug()) { +void AsmPrinter::processDebugLoc(const MachineInstr *MI, + bool BeforePrintingInsn) { + if (!MAI || !DW) + return; + DebugLoc DL = MI->getDebugLoc(); + if (MAI->doesSupportDebugInformation() && DW->ShouldEmitDwarfDebug()) { if (!DL.isUnknown()) { DebugLocTuple CurDLT = MF->getDebugLocTuple(DL); - - if (CurDLT.CompileUnit != 0 && PrevDLT != CurDLT) - printLabel(DW->RecordSourceLine(CurDLT.Line, CurDLT.Col, - DICompileUnit(CurDLT.CompileUnit))); - + if (BeforePrintingInsn) { + if (CurDLT.Scope != 0 && PrevDLT != CurDLT) { + unsigned L = DW->RecordSourceLine(CurDLT.Line, CurDLT.Col, + CurDLT.Scope); + printLabel(L); +#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN + DW->SetDbgScopeBeginLabels(MI, L); +#endif + } else { +#ifdef ATTACH_DEBUG_INFO_TO_AN_INSN + DW->SetDbgScopeEndLabels(MI, 0); +#endif + } + } PrevDLT = CurDLT; } } @@ -1369,14 +1399,15 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { // If this asmstr is empty, just print the #APP/#NOAPP markers. // These are useful to see where empty asm's wound up. if (AsmStr[0] == 0) { - O << TAI->getInlineAsmStart() << "\n\t" << TAI->getInlineAsmEnd() << '\n'; + O << MAI->getCommentString() << MAI->getInlineAsmStart() << "\n\t"; + O << MAI->getCommentString() << MAI->getInlineAsmEnd() << '\n'; return; } - O << TAI->getInlineAsmStart() << "\n\t"; + O << MAI->getCommentString() << MAI->getInlineAsmStart() << "\n\t"; // The variant of the current asmprinter. - int AsmPrinterVariant = TAI->getAssemblerDialect(); + int AsmPrinterVariant = MAI->getAssemblerDialect(); int CurVariant = -1; // The number of the {.|.|.} region we are in. const char *LastEmitted = AsmStr; // One past the last character emitted. @@ -1413,9 +1444,8 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { case '(': // $( -> same as GCC's { character. ++LastEmitted; // Consume '(' character. if (CurVariant != -1) { - cerr << "Nested variants found in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Nested variants found in inline asm string: '" + + std::string(AsmStr) + "'"); } CurVariant = 0; // We're in the first variant now. break; @@ -1450,9 +1480,8 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { const char *StrStart = LastEmitted; const char *StrEnd = strchr(StrStart, '}'); if (StrEnd == 0) { - cerr << "Unterminated ${:foo} operand in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Unterminated ${:foo} operand in inline asm string: '" + + std::string(AsmStr) + "'"); } std::string Val(StrStart, StrEnd); @@ -1466,9 +1495,8 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { errno = 0; long Val = strtol(IDStart, &IDEnd, 10); // We only accept numbers for IDs. if (!isdigit(*IDStart) || (Val == 0 && errno == EINVAL)) { - cerr << "Bad $ operand number in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Bad $ operand number in inline asm string: '" + + std::string(AsmStr) + "'"); } LastEmitted = IDEnd; @@ -1480,9 +1508,8 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { if (*LastEmitted == ':') { ++LastEmitted; // Consume ':' character. if (*LastEmitted == 0) { - cerr << "Bad ${:} expression in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Bad ${:} expression in inline asm string: '" + + std::string(AsmStr) + "'"); } Modifier[0] = *LastEmitted; @@ -1490,17 +1517,15 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { } if (*LastEmitted != '}') { - cerr << "Bad ${} expression in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Bad ${} expression in inline asm string: '" + + std::string(AsmStr) + "'"); } ++LastEmitted; // Consume '}' character. } if ((unsigned)Val >= NumOperands-1) { - cerr << "Invalid $ operand number in inline asm string: '" - << AsmStr << "'\n"; - exit(1); + llvm_report_error("Invalid $ operand number in inline asm string: '" + + std::string(AsmStr) + "'"); } // Okay, we finally have a value number. Ask the target to print this @@ -1524,8 +1549,8 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { ++OpNo; // Skip over the ID number. if (Modifier[0]=='l') // labels are target independent - printBasicBlockLabel(MI->getOperand(OpNo).getMBB(), - false, false, false); + GetMBBSymbol(MI->getOperand(OpNo).getMBB() + ->getNumber())->print(O, MAI); else { AsmPrinter *AP = const_cast<AsmPrinter*>(this); if ((OpFlags & 7) == 4) { @@ -1538,25 +1563,28 @@ void AsmPrinter::printInlineAsm(const MachineInstr *MI) const { } } if (Error) { - cerr << "Invalid operand found in inline asm: '" + std::string msg; + raw_string_ostream Msg(msg); + Msg << "Invalid operand found in inline asm: '" << AsmStr << "'\n"; - MI->dump(); - exit(1); + MI->print(Msg); + llvm_report_error(Msg.str()); } } break; } } } - O << "\n\t" << TAI->getInlineAsmEnd() << '\n'; + O << "\n\t" << MAI->getCommentString() << MAI->getInlineAsmEnd(); } /// printImplicitDef - This method prints the specified machine instruction /// that is an implicit def. void AsmPrinter::printImplicitDef(const MachineInstr *MI) const { - if (VerboseAsm) - O << '\t' << TAI->getCommentString() << " implicit-def: " - << TRI->getAsmName(MI->getOperand(0).getReg()) << '\n'; + if (!VerboseAsm) return; + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " implicit-def: " + << TRI->getName(MI->getOperand(0).getReg()); } /// printLabel - This method prints a local label used by debug and @@ -1566,17 +1594,7 @@ void AsmPrinter::printLabel(const MachineInstr *MI) const { } void AsmPrinter::printLabel(unsigned Id) const { - O << TAI->getPrivateGlobalPrefix() << "label" << Id << ":\n"; -} - -/// printDeclare - This method prints a local variable declaration used by -/// debug tables. -/// FIXME: It doesn't really print anything rather it inserts a DebugVariable -/// entry into dwarf table. -void AsmPrinter::printDeclare(const MachineInstr *MI) const { - unsigned FI = MI->getOperand(0).getIndex(); - GlobalValue *GV = MI->getOperand(1).getGlobal(); - DW->RecordVariable(cast<GlobalVariable>(GV), FI, MI); + O << MAI->getPrivateGlobalPrefix() << "label" << Id << ':'; } /// PrintAsmOperand - Print the specified operand of MI, an INLINEASM @@ -1595,51 +1613,69 @@ bool AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo, return true; } -/// printBasicBlockLabel - This method prints the label for the specified -/// MachineBasicBlock -void AsmPrinter::printBasicBlockLabel(const MachineBasicBlock *MBB, - bool printAlign, - bool printColon, - bool printComment) const { - if (printAlign) { - unsigned Align = MBB->getAlignment(); - if (Align) - EmitAlignment(Log2_32(Align)); - } +MCSymbol *AsmPrinter::GetMBBSymbol(unsigned MBBID) const { + SmallString<60> Name; + raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "BB" + << getFunctionNumber() << '_' << MBBID; + + return OutContext.GetOrCreateSymbol(Name.str()); +} + - O << TAI->getPrivateGlobalPrefix() << "BB" << getFunctionNumber() << '_' - << MBB->getNumber(); - if (printColon) +/// EmitBasicBlockStart - This method prints the label for the specified +/// MachineBasicBlock, an alignment (if present) and a comment describing +/// it if appropriate. +void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const { + if (unsigned Align = MBB->getAlignment()) + EmitAlignment(Log2_32(Align)); + + if (MBB->pred_empty() || MBB->isOnlyReachableByFallthrough()) { + if (VerboseAsm) + O << MAI->getCommentString() << " BB#" << MBB->getNumber() << ':'; + } else { + GetMBBSymbol(MBB->getNumber())->print(O, MAI); O << ':'; - if (printComment && MBB->getBasicBlock()) - O << '\t' << TAI->getCommentString() << ' ' - << MBB->getBasicBlock()->getNameStart(); + if (!VerboseAsm) + O << '\n'; + } + + if (VerboseAsm) { + if (const BasicBlock *BB = MBB->getBasicBlock()) + if (BB->hasName()) { + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << ' '; + WriteAsOperand(O, BB, /*PrintType=*/false); + } + + EmitComments(*MBB); + O << '\n'; + } } /// printPICJumpTableSetLabel - This method prints a set label for the /// specified MachineBasicBlock for a jumptable entry. void AsmPrinter::printPICJumpTableSetLabel(unsigned uid, const MachineBasicBlock *MBB) const { - if (!TAI->getSetDirective()) + if (!MAI->getSetDirective()) return; - O << TAI->getSetDirective() << ' ' << TAI->getPrivateGlobalPrefix() + O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix() << getFunctionNumber() << '_' << uid << "_set_" << MBB->getNumber() << ','; - printBasicBlockLabel(MBB, false, false, false); - O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() + GetMBBSymbol(MBB->getNumber())->print(O, MAI); + O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_' << uid << '\n'; } void AsmPrinter::printPICJumpTableSetLabel(unsigned uid, unsigned uid2, const MachineBasicBlock *MBB) const { - if (!TAI->getSetDirective()) + if (!MAI->getSetDirective()) return; - O << TAI->getSetDirective() << ' ' << TAI->getPrivateGlobalPrefix() + O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix() << getFunctionNumber() << '_' << uid << '_' << uid2 << "_set_" << MBB->getNumber() << ','; - printBasicBlockLabel(MBB, false, false, false); - O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() + GetMBBSymbol(MBB->getNumber())->print(O, MAI); + O << '-' << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_' << uid << '_' << uid2 << '\n'; } @@ -1648,73 +1684,51 @@ void AsmPrinter::printPICJumpTableSetLabel(unsigned uid, unsigned uid2, void AsmPrinter::printDataDirective(const Type *type, unsigned AddrSpace) { const TargetData *TD = TM.getTargetData(); switch (type->getTypeID()) { + case Type::FloatTyID: case Type::DoubleTyID: + case Type::X86_FP80TyID: case Type::FP128TyID: case Type::PPC_FP128TyID: + assert(0 && "Should have already output floating point constant."); + default: + assert(0 && "Can't handle printing this type of thing"); case Type::IntegerTyID: { unsigned BitWidth = cast<IntegerType>(type)->getBitWidth(); if (BitWidth <= 8) - O << TAI->getData8bitsDirective(AddrSpace); + O << MAI->getData8bitsDirective(AddrSpace); else if (BitWidth <= 16) - O << TAI->getData16bitsDirective(AddrSpace); + O << MAI->getData16bitsDirective(AddrSpace); else if (BitWidth <= 32) - O << TAI->getData32bitsDirective(AddrSpace); + O << MAI->getData32bitsDirective(AddrSpace); else if (BitWidth <= 64) { - assert(TAI->getData64bitsDirective(AddrSpace) && + assert(MAI->getData64bitsDirective(AddrSpace) && "Target cannot handle 64-bit constant exprs!"); - O << TAI->getData64bitsDirective(AddrSpace); + O << MAI->getData64bitsDirective(AddrSpace); } else { - assert(0 && "Target cannot handle given data directive width!"); + llvm_unreachable("Target cannot handle given data directive width!"); } break; } case Type::PointerTyID: if (TD->getPointerSize() == 8) { - assert(TAI->getData64bitsDirective(AddrSpace) && + assert(MAI->getData64bitsDirective(AddrSpace) && "Target cannot handle 64-bit pointer exprs!"); - O << TAI->getData64bitsDirective(AddrSpace); + O << MAI->getData64bitsDirective(AddrSpace); } else if (TD->getPointerSize() == 2) { - O << TAI->getData16bitsDirective(AddrSpace); + O << MAI->getData16bitsDirective(AddrSpace); } else if (TD->getPointerSize() == 1) { - O << TAI->getData8bitsDirective(AddrSpace); + O << MAI->getData8bitsDirective(AddrSpace); } else { - O << TAI->getData32bitsDirective(AddrSpace); + O << MAI->getData32bitsDirective(AddrSpace); } break; - case Type::FloatTyID: case Type::DoubleTyID: - case Type::X86_FP80TyID: case Type::FP128TyID: case Type::PPC_FP128TyID: - assert (0 && "Should have already output floating point constant."); - default: - assert (0 && "Can't handle printing this type of thing"); - break; } } -void AsmPrinter::printSuffixedName(const char *Name, const char *Suffix, - const char *Prefix) { - if (Name[0]=='\"') - O << '\"'; - O << TAI->getPrivateGlobalPrefix(); - if (Prefix) O << Prefix; - if (Name[0]=='\"') - O << '\"'; - if (Name[0]=='\"') - O << Name[1]; - else - O << Name; - O << Suffix; - if (Name[0]=='\"') - O << '\"'; -} - -void AsmPrinter::printSuffixedName(const std::string &Name, const char* Suffix) { - printSuffixedName(Name.c_str(), Suffix); -} - void AsmPrinter::printVisibility(const std::string& Name, unsigned Visibility) const { if (Visibility == GlobalValue::HiddenVisibility) { - if (const char *Directive = TAI->getHiddenDirective()) + if (const char *Directive = MAI->getHiddenDirective()) O << Directive << Name << '\n'; } else if (Visibility == GlobalValue::ProtectedVisibility) { - if (const char *Directive = TAI->getProtectedDirective()) + if (const char *Directive = MAI->getProtectedDirective()) O << Directive << Name << '\n'; } } @@ -1746,6 +1760,104 @@ GCMetadataPrinter *AsmPrinter::GetOrCreateGCPrinter(GCStrategy *S) { return GMP; } - cerr << "no GCMetadataPrinter registered for GC: " << Name << "\n"; - abort(); + errs() << "no GCMetadataPrinter registered for GC: " << Name << "\n"; + llvm_unreachable(0); +} + +/// EmitComments - Pretty-print comments for instructions +void AsmPrinter::EmitComments(const MachineInstr &MI) const { + assert(VerboseAsm && !MI.getDebugLoc().isUnknown()); + + DebugLocTuple DLT = MF->getDebugLocTuple(MI.getDebugLoc()); + + // Print source line info. + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " SrcLine "; + if (DLT.Scope) { + DICompileUnit CU(DLT.Scope); + if (!CU.isNull()) + O << CU.getFilename() << " "; + } + O << DLT.Line; + if (DLT.Col != 0) + O << ":" << DLT.Col; +} + +/// PrintChildLoopComment - Print comments about child loops within +/// the loop for this basic block, with nesting. +/// +static void PrintChildLoopComment(formatted_raw_ostream &O, + const MachineLoop *loop, + const MCAsmInfo *MAI, + int FunctionNumber) { + // Add child loop information + for(MachineLoop::iterator cl = loop->begin(), + clend = loop->end(); + cl != clend; + ++cl) { + MachineBasicBlock *Header = (*cl)->getHeader(); + assert(Header && "No header for loop"); + + O << '\n'; + O.PadToColumn(MAI->getCommentColumn()); + + O << MAI->getCommentString(); + O.indent(((*cl)->getLoopDepth()-1)*2) + << " Child Loop BB" << FunctionNumber << "_" + << Header->getNumber() << " Depth " << (*cl)->getLoopDepth(); + + PrintChildLoopComment(O, *cl, MAI, FunctionNumber); + } +} + +/// EmitComments - Pretty-print comments for basic blocks +void AsmPrinter::EmitComments(const MachineBasicBlock &MBB) const +{ + if (VerboseAsm) { + // Add loop depth information + const MachineLoop *loop = LI->getLoopFor(&MBB); + + if (loop) { + // Print a newline after bb# annotation. + O << "\n"; + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " Loop Depth " << loop->getLoopDepth() + << '\n'; + + O.PadToColumn(MAI->getCommentColumn()); + + MachineBasicBlock *Header = loop->getHeader(); + assert(Header && "No header for loop"); + + if (Header == &MBB) { + O << MAI->getCommentString() << " Loop Header"; + PrintChildLoopComment(O, loop, MAI, getFunctionNumber()); + } + else { + O << MAI->getCommentString() << " Loop Header is BB" + << getFunctionNumber() << "_" << loop->getHeader()->getNumber(); + } + + if (loop->empty()) { + O << '\n'; + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString() << " Inner Loop"; + } + + // Add parent loop information + for (const MachineLoop *CurLoop = loop->getParentLoop(); + CurLoop; + CurLoop = CurLoop->getParentLoop()) { + MachineBasicBlock *Header = CurLoop->getHeader(); + assert(Header && "No header for loop"); + + O << '\n'; + O.PadToColumn(MAI->getCommentColumn()); + O << MAI->getCommentString(); + O.indent((CurLoop->getLoopDepth()-1)*2) + << " Inside Loop BB" << getFunctionNumber() << "_" + << Header->getNumber() << " Depth " << CurLoop->getLoopDepth(); + } + } + } } |