OutStreamer.InitStreamer();
- Mang = new Mangler(OutContext, &TM);
+ Mang = new Mangler(&TM);
// Allow the target to emit any magic that it wants at the start of the file.
EmitStartOfAsmFile(M);
llvm_unreachable("Unknown exception type.");
}
-void AsmPrinter::EmitLinkage(unsigned Linkage, MCSymbol *GVSym) const {
- switch ((GlobalValue::LinkageTypes)Linkage) {
+void AsmPrinter::EmitLinkage(unsigned L, MCSymbol *GVSym) const {
+ GlobalValue::LinkageTypes Linkage = (GlobalValue::LinkageTypes)L;
+
+ switch (Linkage) {
case GlobalValue::CommonLinkage:
case GlobalValue::LinkOnceAnyLinkage:
case GlobalValue::LinkOnceODRLinkage:
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
- if ((GlobalValue::LinkageTypes)Linkage !=
- GlobalValue::LinkOnceODRAutoHideLinkage)
+ if (Linkage != GlobalValue::LinkOnceODRAutoHideLinkage)
// .weak_definition _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_WeakDefinition);
else
// .weak _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Weak);
}
- break;
+ return;
case GlobalValue::DLLExportLinkage:
case GlobalValue::AppendingLinkage:
// FIXME: appending linkage variables should go into a section of
// If external or appending, declare as a global symbol.
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
- break;
+ return;
case GlobalValue::PrivateLinkage:
case GlobalValue::InternalLinkage:
case GlobalValue::LinkerPrivateLinkage:
- break;
- default:
- llvm_unreachable("Unknown linkage type!");
+ return;
+ case GlobalValue::AvailableExternallyLinkage:
+ llvm_unreachable("Should never emit this");
+ case GlobalValue::DLLImportLinkage:
+ case GlobalValue::ExternalWeakLinkage:
+ llvm_unreachable("Don't know how to emit these");
}
+ llvm_unreachable("Unknown linkage type!");
}
+MCSymbol *AsmPrinter::getSymbol(const GlobalValue *GV) const {
+ return getObjFileLowering().getSymbol(*Mang, GV);
+}
/// EmitGlobalVariable - Emit the specified global variable to the .s file.
void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
}
}
- MCSymbol *GVSym = Mang->getSymbol(GV);
+ MCSymbol *GVSym = getSymbol(GV);
EmitVisibility(GVSym, GV->getVisibility(), !GV->isDeclaration());
if (!GV->hasInitializer()) // External globals require no extra code.
SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
- const DataLayout *TD = TM.getDataLayout();
- uint64_t Size = TD->getTypeAllocSize(GV->getType()->getElementType());
+ const DataLayout *DL = TM.getDataLayout();
+ uint64_t Size = DL->getTypeAllocSize(GV->getType()->getElementType());
// If the alignment is specified, we *must* obey it. Overaligning a global
// with a specified alignment is a prompt way to break globals emitted to
// sections and expected to be contiguous (e.g. ObjC metadata).
- unsigned AlignLog = getGVAlignmentLog2(GV, *TD);
+ unsigned AlignLog = getGVAlignmentLog2(GV, *DL);
+
+ if (DD)
+ DD->setSymbolSize(GVSym, Size);
// Handle common and BSS local symbols (.lcomm).
if (GVKind.isCommon() || GVKind.isBSSLocal()) {
// - __tlv_bootstrap - used to make sure support exists
// - spare pointer, used when mapped by the runtime
// - pointer to mangled symbol above with initializer
- unsigned PtrSize = TD->getPointerSizeInBits()/8;
+ unsigned PtrSize = DL->getPointerSizeInBits()/8;
OutStreamer.EmitSymbolValue(GetExternalSymbolSymbol("_tlv_bootstrap"),
PtrSize);
OutStreamer.EmitIntValue(0, PtrSize);
OutStreamer.EmitLabel(DeadBlockSyms[i]);
}
- // Emit the prefix data.
- if (F->hasPrefixData())
- EmitGlobalConstant(F->getPrefixData());
-
// Emit pre-function debug and/or EH information.
if (DE) {
NamedRegionTimer T(EHTimerName, DWARFGroupName, TimePassesIsEnabled);
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
DD->beginFunction(MF);
}
+
+ // Emit the prefix data.
+ if (F->hasPrefixData())
+ EmitGlobalConstant(F->getPrefixData());
}
/// EmitFunctionEntryLabel - Emit the label that is the entrypoint for the
/// emitImplicitDef - This method emits the specified machine instruction
/// that is an implicit def.
-static void emitImplicitDef(const MachineInstr *MI, AsmPrinter &AP) {
+void AsmPrinter::emitImplicitDef(const MachineInstr *MI) const {
unsigned RegNo = MI->getOperand(0).getReg();
- AP.OutStreamer.AddComment(Twine("implicit-def: ") +
- AP.TM.getRegisterInfo()->getName(RegNo));
- AP.OutStreamer.AddBlankLine();
+ OutStreamer.AddComment(Twine("implicit-def: ") +
+ TM.getRegisterInfo()->getName(RegNo));
+ OutStreamer.AddBlankLine();
}
static void emitKill(const MachineInstr *MI, AsmPrinter &AP) {
}
break;
case TargetOpcode::IMPLICIT_DEF:
- if (isVerbose()) emitImplicitDef(II, *this);
+ if (isVerbose()) emitImplicitDef(II);
break;
case TargetOpcode::KILL:
if (isVerbose()) emitKill(II, *this);
if (V == GlobalValue::DefaultVisibility)
continue;
- MCSymbol *Name = Mang->getSymbol(&F);
+ MCSymbol *Name = getSymbol(&F);
EmitVisibility(Name, V, false);
}
if (!ModuleFlags.empty())
getObjFileLowering().emitModuleFlags(OutStreamer, ModuleFlags, Mang, TM);
+ // Make sure we wrote out everything we need.
+ OutStreamer.Flush();
+
// Finalize debug and EH information.
if (DE) {
{
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I) {
if (!I->hasExternalWeakLinkage()) continue;
- OutStreamer.EmitSymbolAttribute(Mang->getSymbol(I), MCSA_WeakReference);
+ OutStreamer.EmitSymbolAttribute(getSymbol(I), MCSA_WeakReference);
}
for (Module::const_iterator I = M.begin(), E = M.end(); I != E; ++I) {
if (!I->hasExternalWeakLinkage()) continue;
- OutStreamer.EmitSymbolAttribute(Mang->getSymbol(I), MCSA_WeakReference);
+ OutStreamer.EmitSymbolAttribute(getSymbol(I), MCSA_WeakReference);
}
}
OutStreamer.AddBlankLine();
for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end();
I != E; ++I) {
- MCSymbol *Name = Mang->getSymbol(I);
+ MCSymbol *Name = getSymbol(I);
const GlobalValue *GV = I->getAliasedGlobal();
- MCSymbol *Target = Mang->getSymbol(GV);
+ MCSymbol *Target = getSymbol(GV);
if (I->hasExternalLinkage() || !MAI->getWeakRefDirective())
OutStreamer.EmitSymbolAttribute(Name, MCSA_Global);
- else if (I->hasWeakLinkage())
+ else if (I->hasWeakLinkage() || I->hasLinkOnceLinkage())
OutStreamer.EmitSymbolAttribute(Name, MCSA_WeakReference);
else
assert(I->hasLocalLinkage() && "Invalid alias linkage");
if (GCMetadataPrinter *MP = GetOrCreateGCPrinter(*--I))
MP->finishAssembly(*this);
+ // Emit llvm.ident metadata in an '.ident' directive.
+ EmitModuleIdents(M);
+
// 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");
void AsmPrinter::SetupMachineFunction(MachineFunction &MF) {
this->MF = &MF;
// Get the function symbol.
- CurrentFnSym = Mang->getSymbol(MF.getFunction());
+ CurrentFnSym = getSymbol(MF.getFunction());
CurrentFnSymForSize = CurrentFnSym;
if (isVerbose())
const GlobalValue *GV =
dyn_cast<GlobalValue>(InitList->getOperand(i)->stripPointerCasts());
if (GV && getObjFileLowering().shouldEmitUsedDirectiveFor(GV, Mang))
- OutStreamer.EmitSymbolAttribute(Mang->getSymbol(GV), MCSA_NoDeadStrip);
+ OutStreamer.EmitSymbolAttribute(getSymbol(GV), MCSA_NoDeadStrip);
}
}
}
// Emit the function pointers in the target-specific order
- const DataLayout *TD = TM.getDataLayout();
- unsigned Align = Log2_32(TD->getPointerPrefAlignment());
+ const DataLayout *DL = TM.getDataLayout();
+ unsigned Align = Log2_32(DL->getPointerPrefAlignment());
std::stable_sort(Structors.begin(), Structors.end(), less_first());
for (unsigned i = 0, e = Structors.size(); i != e; ++i) {
const MCSection *OutputSection =
}
}
+void AsmPrinter::EmitModuleIdents(Module &M) {
+ if (!MAI->hasIdentDirective())
+ return;
+
+ if (const NamedMDNode *NMD = M.getNamedMetadata("llvm.ident")) {
+ for (unsigned i = 0, e = NMD->getNumOperands(); i != e; ++i) {
+ const MDNode *N = NMD->getOperand(i);
+ assert(N->getNumOperands() == 1 &&
+ "llvm.ident metadata entry can have only one operand");
+ const MDString *S = cast<MDString>(N->getOperand(0));
+ OutStreamer.EmitIdent(S->getString());
+ }
+ }
+}
+
//===--------------------------------------------------------------------===//
// Emission and print routines
//
void AsmPrinter::EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
unsigned Size, bool IsSectionRelative)
const {
- if (MAI->needsDwarfSectionOffsetDirective() && IsSectionRelative) {
+ if (MAI->needsDwarfSectionOffsetDirective() && IsSectionRelative) {
OutStreamer.EmitCOFFSecRel32(Label);
return;
}
return MCConstantExpr::Create(CI->getZExtValue(), Ctx);
if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV))
- return MCSymbolRefExpr::Create(AP.Mang->getSymbol(GV), Ctx);
+ return MCSymbolRefExpr::Create(AP.getSymbol(GV), Ctx);
if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV))
return MCSymbolRefExpr::Create(AP.GetBlockAddressSymbol(BA), Ctx);
report_fatal_error(OS.str());
}
case Instruction::GetElementPtr: {
- const DataLayout &TD = *AP.TM.getDataLayout();
+ const DataLayout &DL = *AP.TM.getDataLayout();
// Generate a symbolic expression for the byte address
- APInt OffsetAI(TD.getPointerSizeInBits(), 0);
- cast<GEPOperator>(CE)->accumulateConstantOffset(TD, OffsetAI);
+ APInt OffsetAI(DL.getPointerTypeSizeInBits(CE->getType()), 0);
+ cast<GEPOperator>(CE)->accumulateConstantOffset(DL, OffsetAI);
const MCExpr *Base = lowerConstant(CE->getOperand(0), AP);
if (!OffsetAI)
return lowerConstant(CE->getOperand(0), AP);
case Instruction::IntToPtr: {
- const DataLayout &TD = *AP.TM.getDataLayout();
+ const DataLayout &DL = *AP.TM.getDataLayout();
// 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(CV->getContext()),
+ Op = ConstantExpr::getIntegerCast(Op, DL.getIntPtrType(CV->getType()),
false/*ZExt*/);
return lowerConstant(Op, AP);
}
case Instruction::PtrToInt: {
- const DataLayout &TD = *AP.TM.getDataLayout();
+ const DataLayout &DL = *AP.TM.getDataLayout();
// Support only foldable casts to/from pointers that can be eliminated by
// changing the pointer to the appropriately sized integer type.
Constant *Op = CE->getOperand(0);
// We can emit the pointer value into this slot if the slot is an
// integer slot equal to the size of the pointer.
- if (TD.getTypeAllocSize(Ty) == TD.getTypeAllocSize(Op->getType()))
+ if (DL.getTypeAllocSize(Ty) == DL.getTypeAllocSize(Op->getType()))
return OpExpr;
// Otherwise the pointer is smaller than the resultant integer, mask off
// the high bits so we are sure to get a proper truncation if the input is
// a constant expr.
- unsigned InBits = TD.getTypeAllocSizeInBits(Op->getType());
+ unsigned InBits = DL.getTypeAllocSizeInBits(Op->getType());
const MCExpr *MaskExpr = MCConstantExpr::Create(~0ULL >> (64-InBits), Ctx);
return MCBinaryExpr::CreateAnd(OpExpr, MaskExpr, Ctx);
}
}
}
- const DataLayout &TD = *AP.TM.getDataLayout();
- unsigned Size = TD.getTypeAllocSize(CDS->getType());
- unsigned EmittedSize = TD.getTypeAllocSize(CDS->getType()->getElementType()) *
+ const DataLayout &DL = *AP.TM.getDataLayout();
+ unsigned Size = DL.getTypeAllocSize(CDS->getType());
+ unsigned EmittedSize = DL.getTypeAllocSize(CDS->getType()->getElementType()) *
CDS->getNumElements();
if (unsigned Padding = Size - EmittedSize)
AP.OutStreamer.EmitZeros(Padding);
for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i)
emitGlobalConstantImpl(CV->getOperand(i), AP);
- const DataLayout &TD = *AP.TM.getDataLayout();
- unsigned Size = TD.getTypeAllocSize(CV->getType());
- unsigned EmittedSize = TD.getTypeAllocSize(CV->getType()->getElementType()) *
+ const DataLayout &DL = *AP.TM.getDataLayout();
+ unsigned Size = DL.getTypeAllocSize(CV->getType());
+ unsigned EmittedSize = DL.getTypeAllocSize(CV->getType()->getElementType()) *
CV->getType()->getNumElements();
if (unsigned Padding = Size - EmittedSize)
AP.OutStreamer.EmitZeros(Padding);
static void emitGlobalConstantStruct(const ConstantStruct *CS, AsmPrinter &AP) {
// Print the fields in successive locations. Pad to align if needed!
- const DataLayout *TD = AP.TM.getDataLayout();
- unsigned Size = TD->getTypeAllocSize(CS->getType());
- const StructLayout *Layout = TD->getStructLayout(CS->getType());
+ const DataLayout *DL = AP.TM.getDataLayout();
+ unsigned Size = DL->getTypeAllocSize(CS->getType());
+ const StructLayout *Layout = DL->getStructLayout(CS->getType());
uint64_t SizeSoFar = 0;
for (unsigned i = 0, e = CS->getNumOperands(); i != e; ++i) {
const Constant *Field = CS->getOperand(i);
// Check if padding is needed and insert one or more 0s.
- uint64_t FieldSize = TD->getTypeAllocSize(Field->getType());
+ uint64_t FieldSize = DL->getTypeAllocSize(Field->getType());
uint64_t PadSize = ((i == e-1 ? Size : Layout->getElementOffset(i+1))
- Layout->getElementOffset(i)) - FieldSize;
SizeSoFar += FieldSize + PadSize;
}
// Emit the tail padding for the long double.
- const DataLayout &TD = *AP.TM.getDataLayout();
- AP.OutStreamer.EmitZeros(TD.getTypeAllocSize(CFP->getType()) -
- TD.getTypeStoreSize(CFP->getType()));
+ const DataLayout &DL = *AP.TM.getDataLayout();
+ AP.OutStreamer.EmitZeros(DL.getTypeAllocSize(CFP->getType()) -
+ DL.getTypeStoreSize(CFP->getType()));
}
static void emitGlobalConstantLargeInt(const ConstantInt *CI, AsmPrinter &AP) {
- const DataLayout *TD = AP.TM.getDataLayout();
+ const DataLayout *DL = AP.TM.getDataLayout();
unsigned BitWidth = CI->getBitWidth();
// Copy the value as we may massage the layout for constants whose bit width
// Big endian:
// * Record the extra bits to emit.
// * Realign the raw data to emit the chunks of 64-bits.
- if (TD->isBigEndian()) {
+ if (DL->isBigEndian()) {
// Basically the structure of the raw data is a chunk of 64-bits cells:
// 0 1 BitWidth / 64
// [chunk1][chunk2] ... [chunkN].
// quantities at a time.
const uint64_t *RawData = Realigned.getRawData();
for (unsigned i = 0, e = BitWidth / 64; i != e; ++i) {
- uint64_t Val = TD->isBigEndian() ? RawData[e - i - 1] : RawData[i];
+ uint64_t Val = DL->isBigEndian() ? RawData[e - i - 1] : RawData[i];
AP.OutStreamer.EmitIntValue(Val, 8);
}
}
static void emitGlobalConstantImpl(const Constant *CV, AsmPrinter &AP) {
- const DataLayout *TD = AP.TM.getDataLayout();
- uint64_t Size = TD->getTypeAllocSize(CV->getType());
+ const DataLayout *DL = AP.TM.getDataLayout();
+ uint64_t Size = DL->getTypeAllocSize(CV->getType());
if (isa<ConstantAggregateZero>(CV) || isa<UndefValue>(CV))
return AP.OutStreamer.EmitZeros(Size);
// If the constant expression's size is greater than 64-bits, then we have
// to emit the value in chunks. Try to constant fold the value and emit it
// that way.
- Constant *New = ConstantFoldConstantExpression(CE, TD);
+ Constant *New = ConstantFoldConstantExpression(CE, DL);
if (New && New != CE)
return emitGlobalConstantImpl(New, AP);
}
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