#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCValue.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/MathExtras.h"
/// getGVAlignmentLog2 - Return the alignment to use for the specified global
/// value in log2 form. This rounds up to the preferred alignment if possible
/// and legal.
-static unsigned getGVAlignmentLog2(const GlobalValue *GV, const DataLayout &TD,
+static unsigned getGVAlignmentLog2(const GlobalValue *GV, const DataLayout &DL,
unsigned InBits = 0) {
unsigned NumBits = 0;
if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
- NumBits = TD.getPreferredAlignmentLog(GVar);
+ NumBits = DL.getPreferredAlignmentLog(GVar);
// If InBits is specified, round it to it.
if (InBits > NumBits)
AsmPrinter::AsmPrinter(TargetMachine &tm, std::unique_ptr<MCStreamer> Streamer)
: MachineFunctionPass(ID), TM(tm), MAI(tm.getMCAsmInfo()),
OutContext(Streamer->getContext()), OutStreamer(*Streamer.release()),
- LastMI(nullptr), LastFn(0), Counter(~0U), SetCounter(0) {
+ LastMI(nullptr), LastFn(0), Counter(~0U) {
DD = nullptr;
MMI = nullptr;
LI = nullptr;
MF = nullptr;
- CurrentFnSym = CurrentFnSymForSize = nullptr;
+ CurExceptionSym = CurrentFnSym = CurrentFnSymForSize = nullptr;
+ CurrentFnBegin = nullptr;
+ CurrentFnEnd = nullptr;
GCMetadataPrinters = nullptr;
VerboseAsm = OutStreamer.isVerboseAsm();
}
// Emit module-level inline asm if it exists.
if (!M.getModuleInlineAsm().empty()) {
+ // We're at the module level. Construct MCSubtarget from the default CPU
+ // and target triple.
+ std::unique_ptr<MCSubtargetInfo> STI(TM.getTarget().createMCSubtargetInfo(
+ TM.getTargetTriple(), TM.getTargetCPU(), TM.getTargetFeatureString()));
OutStreamer.AddComment("Start of file scope inline assembly");
OutStreamer.AddBlankLine();
- EmitInlineAsm(M.getModuleInlineAsm()+"\n");
+ EmitInlineAsm(M.getModuleInlineAsm()+"\n", *STI);
OutStreamer.AddComment("End of file scope inline assembly");
OutStreamer.AddBlankLine();
}
if (EmitSpecialLLVMGlobal(GV))
return;
+ // Skip the emission of global equivalents. The symbol can be emitted later
+ // on by emitGlobalGOTEquivs in case it turns out to be needed.
+ if (GlobalGOTEquivs.count(getSymbol(GV)))
+ return;
+
if (isVerbose()) {
GV->printAsOperand(OutStreamer.GetCommentOS(),
/*PrintType=*/false, GV->getParent());
EmitVisibility(CurrentFnSym, F->getVisibility());
EmitLinkage(F, CurrentFnSym);
- EmitAlignment(MF->getAlignment(), F);
+ if (MAI->hasFunctionAlignment())
+ EmitAlignment(MF->getAlignment(), F);
if (MAI->hasDotTypeDotSizeDirective())
OutStreamer.EmitSymbolAttribute(CurrentFnSym, MCSA_ELF_TypeFunction);
OutStreamer.EmitLabel(DeadBlockSyms[i]);
}
+ if (CurrentFnBegin) {
+ if (MAI->useAssignmentForEHBegin()) {
+ MCSymbol *CurPos = OutContext.CreateTempSymbol();
+ OutStreamer.EmitLabel(CurPos);
+ OutStreamer.EmitAssignment(CurrentFnBegin,
+ MCSymbolRefExpr::Create(CurPos, OutContext));
+ } else {
+ OutStreamer.EmitLabel(CurrentFnBegin);
+ }
+ }
+
// Emit pre-function debug and/or EH information.
for (const HandlerInfo &HI : Handlers) {
NamedRegionTimer T(HI.TimerName, HI.TimerGroupName, TimePassesIsEnabled);
/// EmitFunctionBody - This method emits the body and trailer for a
/// function.
void AsmPrinter::EmitFunctionBody() {
+ EmitFunctionHeader();
+
// Emit target-specific gunk before the function body.
EmitFunctionBodyStart();
// Emit target-specific gunk after the function body.
EmitFunctionBodyEnd();
+ if (!MMI->getLandingPads().empty() || MMI->hasDebugInfo() ||
+ MAI->hasDotTypeDotSizeDirective()) {
+ // Create a symbol for the end of function.
+ CurrentFnEnd = createTempSymbol("func_end");
+ OutStreamer.EmitLabel(CurrentFnEnd);
+ }
+
// If the target wants a .size directive for the size of the function, emit
// it.
if (MAI->hasDotTypeDotSizeDirective()) {
- // Create a symbol for the end of function, so we can get the size as
- // difference between the function label and the temp label.
- MCSymbol *FnEndLabel = OutContext.CreateTempSymbol();
- OutStreamer.EmitLabel(FnEndLabel);
-
+ // We can get the size as difference between the function label and the
+ // temp label.
const MCExpr *SizeExp =
- MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(FnEndLabel, OutContext),
+ MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(CurrentFnEnd, OutContext),
MCSymbolRefExpr::Create(CurrentFnSymForSize,
OutContext),
OutContext);
OutStreamer.EmitELFSize(CurrentFnSym, SizeExp);
}
- // Emit post-function debug and/or EH information.
for (const HandlerInfo &HI : Handlers) {
NamedRegionTimer T(HI.TimerName, HI.TimerGroupName, TimePassesIsEnabled);
- HI.Handler->endFunction(MF);
+ HI.Handler->markFunctionEnd();
}
- MMI->EndFunction();
// Print out jump tables referenced by the function.
EmitJumpTableInfo();
+ // Emit post-function debug and/or EH information.
+ for (const HandlerInfo &HI : Handlers) {
+ NamedRegionTimer T(HI.TimerName, HI.TimerGroupName, TimePassesIsEnabled);
+ HI.Handler->endFunction(MF);
+ }
+ MMI->EndFunction();
+
OutStreamer.AddBlankLine();
}
+/// \brief Compute the number of Global Variables that uses a Constant.
+static unsigned getNumGlobalVariableUses(const Constant *C) {
+ if (!C)
+ return 0;
+
+ if (isa<GlobalVariable>(C))
+ return 1;
+
+ unsigned NumUses = 0;
+ for (auto *CU : C->users())
+ NumUses += getNumGlobalVariableUses(dyn_cast<Constant>(CU));
+
+ return NumUses;
+}
+
+/// \brief Only consider global GOT equivalents if at least one user is a
+/// cstexpr inside an initializer of another global variables. Also, don't
+/// handle cstexpr inside instructions. During global variable emission,
+/// candidates are skipped and are emitted later in case at least one cstexpr
+/// isn't replaced by a PC relative GOT entry access.
+static bool isGOTEquivalentCandidate(const GlobalVariable *GV,
+ unsigned &NumGOTEquivUsers) {
+ // Global GOT equivalents are unnamed private globals with a constant
+ // pointer initializer to another global symbol. They must point to a
+ // GlobalVariable or Function, i.e., as GlobalValue.
+ if (!GV->hasUnnamedAddr() || !GV->hasInitializer() || !GV->isConstant() ||
+ !GV->isDiscardableIfUnused() || !dyn_cast<GlobalValue>(GV->getOperand(0)))
+ return false;
+
+ // To be a got equivalent, at least one of its users need to be a constant
+ // expression used by another global variable.
+ for (auto *U : GV->users())
+ NumGOTEquivUsers += getNumGlobalVariableUses(dyn_cast<Constant>(U));
+
+ return NumGOTEquivUsers > 0;
+}
+
+/// \brief Unnamed constant global variables solely contaning a pointer to
+/// another globals variable is equivalent to a GOT table entry; it contains the
+/// the address of another symbol. Optimize it and replace accesses to these
+/// "GOT equivalents" by using the GOT entry for the final global instead.
+/// Compute GOT equivalent candidates among all global variables to avoid
+/// emitting them if possible later on, after it use is replaced by a GOT entry
+/// access.
+void AsmPrinter::computeGlobalGOTEquivs(Module &M) {
+ if (!getObjFileLowering().supportIndirectSymViaGOTPCRel())
+ return;
+
+ for (const auto &G : M.globals()) {
+ unsigned NumGOTEquivUsers = 0;
+ if (!isGOTEquivalentCandidate(&G, NumGOTEquivUsers))
+ continue;
+
+ const MCSymbol *GOTEquivSym = getSymbol(&G);
+ GlobalGOTEquivs[GOTEquivSym] = std::make_pair(&G, NumGOTEquivUsers);
+ }
+}
+
+/// \brief Constant expressions using GOT equivalent globals may not be eligible
+/// for PC relative GOT entry conversion, in such cases we need to emit such
+/// globals we previously omitted in EmitGlobalVariable.
+void AsmPrinter::emitGlobalGOTEquivs() {
+ if (!getObjFileLowering().supportIndirectSymViaGOTPCRel())
+ return;
+
+ SmallVector<const GlobalVariable *, 8> FailedCandidates;
+ for (auto &I : GlobalGOTEquivs) {
+ const GlobalVariable *GV = I.second.first;
+ unsigned Cnt = I.second.second;
+ if (Cnt)
+ FailedCandidates.push_back(GV);
+ }
+ GlobalGOTEquivs.clear();
+
+ for (auto *GV : FailedCandidates)
+ EmitGlobalVariable(GV);
+}
+
bool AsmPrinter::doFinalization(Module &M) {
+ // Set the MachineFunction to nullptr so that we can catch attempted
+ // accesses to MF specific features at the module level and so that
+ // we can conditionalize accesses based on whether or not it is nullptr.
+ MF = nullptr;
+
+ // Gather all GOT equivalent globals in the module. We really need two
+ // passes over the globals: one to compute and another to avoid its emission
+ // in EmitGlobalVariable, otherwise we would not be able to handle cases
+ // where the got equivalent shows up before its use.
+ computeGlobalGOTEquivs(M);
+
// Emit global variables.
for (const auto &G : M.globals())
EmitGlobalVariable(&G);
+ // Emit remaining GOT equivalent globals.
+ emitGlobalGOTEquivs();
+
// Emit visibility info for declarations
for (const Function &F : M) {
if (!F.isDeclaration())
EmitVisibility(Name, V, false);
}
- // Get information about jump-instruction tables to print.
- JumpInstrTableInfo *JITI = getAnalysisIfAvailable<JumpInstrTableInfo>();
-
- if (JITI && !JITI->getTables().empty()) {
- // Since we're at the module level we can't use a function specific
- // MCSubtargetInfo - instead create one with the module defaults.
- std::unique_ptr<MCSubtargetInfo> STI(TM.getTarget().createMCSubtargetInfo(
- TM.getTargetTriple(), TM.getTargetCPU(), TM.getTargetFeatureString()));
- unsigned Arch = Triple(getTargetTriple()).getArch();
- bool IsThumb = (Arch == Triple::thumb || Arch == Triple::thumbeb);
- const TargetInstrInfo *TII = TM.getSubtargetImpl()->getInstrInfo();
- MCInst TrapInst;
- TII->getTrap(TrapInst);
- unsigned LogAlignment = llvm::Log2_64(JITI->entryByteAlignment());
-
- // Emit the right section for these functions.
- OutStreamer.SwitchSection(OutContext.getObjectFileInfo()->getTextSection());
- for (const auto &KV : JITI->getTables()) {
- uint64_t Count = 0;
- for (const auto &FunPair : KV.second) {
- // Emit the function labels to make this be a function entry point.
- MCSymbol *FunSym =
- OutContext.GetOrCreateSymbol(FunPair.second->getName());
- EmitAlignment(LogAlignment);
- if (IsThumb)
- OutStreamer.EmitThumbFunc(FunSym);
- if (MAI->hasDotTypeDotSizeDirective())
- OutStreamer.EmitSymbolAttribute(FunSym, MCSA_ELF_TypeFunction);
- OutStreamer.EmitLabel(FunSym);
-
- // Emit the jump instruction to transfer control to the original
- // function.
- MCInst JumpToFun;
- MCSymbol *TargetSymbol =
- OutContext.GetOrCreateSymbol(FunPair.first->getName());
- const MCSymbolRefExpr *TargetSymRef =
- MCSymbolRefExpr::Create(TargetSymbol, MCSymbolRefExpr::VK_PLT,
- OutContext);
- TII->getUnconditionalBranch(JumpToFun, TargetSymRef);
- OutStreamer.EmitInstruction(JumpToFun, *STI);
- ++Count;
- }
-
- // Emit enough padding instructions to fill up to the next power of two.
- uint64_t Remaining = NextPowerOf2(Count) - Count;
- for (uint64_t C = 0; C < Remaining; ++C) {
- EmitAlignment(LogAlignment);
- OutStreamer.EmitInstruction(TrapInst, *STI);
- }
-
- }
- }
-
// Emit module flags.
SmallVector<Module::ModuleFlagEntry, 8> ModuleFlags;
M.getModuleFlagsMetadata(ModuleFlags);
return false;
}
+MCSymbol *AsmPrinter::getCurExceptionSym() {
+ if (!CurExceptionSym)
+ CurExceptionSym = createTempSymbol("exception");
+ return CurExceptionSym;
+}
+
void AsmPrinter::SetupMachineFunction(MachineFunction &MF) {
this->MF = &MF;
// Get the function symbol.
CurrentFnSym = getSymbol(MF.getFunction());
CurrentFnSymForSize = CurrentFnSym;
+ CurrentFnBegin = nullptr;
+ CurExceptionSym = nullptr;
+ bool NeedsLocalForSize = MAI->needsLocalForSize();
+ if (!MMI->getLandingPads().empty() || MMI->hasDebugInfo() ||
+ NeedsLocalForSize) {
+ CurrentFnBegin = createTempSymbol("func_begin");
+ if (NeedsLocalForSize)
+ CurrentFnSymForSize = CurrentFnBegin;
+ }
if (isVerbose())
LI = &getAnalysis<MachineLoopInfo>();
bool JTInDiffSection = !TLOF.shouldPutJumpTableInFunctionSection(
MJTI->getEntryKind() == MachineJumpTableInfo::EK_LabelDifference32,
*F);
- if (!JTInDiffSection) {
- OutStreamer.SwitchSection(TLOF.SectionForGlobal(F, *Mang, TM));
- } else {
- // Otherwise, drop it in the readonly section.
+ if (JTInDiffSection) {
+ // Drop it in the readonly section.
const MCSection *ReadOnlySection =
TLOF.getSectionForJumpTable(*F, *Mang, TM);
OutStreamer.SwitchSection(ReadOnlySection);
}
// Otherwise, emit with .set (aka assignment).
- MCSymbol *SetLabel = GetTempSymbol("set", SetCounter++);
+ MCSymbol *SetLabel = createTempSymbol("set");
OutStreamer.EmitAssignment(SetLabel, Diff);
OutStreamer.EmitSymbolValue(SetLabel, Size);
}
// If the code isn't optimized, there may be outstanding folding
// opportunities. Attempt to fold the expression using DataLayout as a
// last resort before giving up.
- if (Constant *C = ConstantFoldConstantExpression(
- CE, TM.getDataLayout()))
+ if (Constant *C = ConstantFoldConstantExpression(CE, *TM.getDataLayout()))
if (C != CE)
return lowerConstant(C);
}
}
-static void emitGlobalConstantImpl(const Constant *C, AsmPrinter &AP);
+static void emitGlobalConstantImpl(const Constant *C, AsmPrinter &AP,
+ const Constant *BaseCV = nullptr,
+ uint64_t Offset = 0);
/// isRepeatedByteSequence - Determine whether the given value is
/// composed of a repeated sequence of identical bytes and return the
}
-static void emitGlobalConstantArray(const ConstantArray *CA, AsmPrinter &AP) {
+static void emitGlobalConstantArray(const ConstantArray *CA, AsmPrinter &AP,
+ const Constant *BaseCV, uint64_t Offset) {
// See if we can aggregate some values. Make sure it can be
// represented as a series of bytes of the constant value.
int Value = isRepeatedByteSequence(CA, AP.TM);
+ const DataLayout &DL = *AP.TM.getDataLayout();
if (Value != -1) {
- uint64_t Bytes =
- AP.TM.getDataLayout()->getTypeAllocSize(
- CA->getType());
+ uint64_t Bytes = DL.getTypeAllocSize(CA->getType());
AP.OutStreamer.EmitFill(Bytes, Value);
}
else {
- for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i)
- emitGlobalConstantImpl(CA->getOperand(i), AP);
+ for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i) {
+ emitGlobalConstantImpl(CA->getOperand(i), AP, BaseCV, Offset);
+ Offset += DL.getTypeAllocSize(CA->getOperand(i)->getType());
+ }
}
}
AP.OutStreamer.EmitZeros(Padding);
}
-static void emitGlobalConstantStruct(const ConstantStruct *CS, AsmPrinter &AP) {
+static void emitGlobalConstantStruct(const ConstantStruct *CS, AsmPrinter &AP,
+ const Constant *BaseCV, uint64_t Offset) {
// Print the fields in successive locations. Pad to align if needed!
const DataLayout *DL = AP.TM.getDataLayout();
unsigned Size = DL->getTypeAllocSize(CS->getType());
for (unsigned i = 0, e = CS->getNumOperands(); i != e; ++i) {
const Constant *Field = CS->getOperand(i);
+ // Print the actual field value.
+ emitGlobalConstantImpl(Field, AP, BaseCV, Offset+SizeSoFar);
+
// Check if padding is needed and insert one or more 0s.
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;
- // Now print the actual field value.
- emitGlobalConstantImpl(Field, AP);
-
// Insert padding - this may include padding to increase the size of the
// current field up to the ABI size (if the struct is not packed) as well
// as padding to ensure that the next field starts at the right offset.
}
}
-static void emitGlobalConstantImpl(const Constant *CV, AsmPrinter &AP) {
+/// \brief Transform a not absolute MCExpr containing a reference to a GOT
+/// equivalent global, by a target specific GOT pc relative access to the
+/// final symbol.
+static void handleIndirectSymViaGOTPCRel(AsmPrinter &AP, const MCExpr **ME,
+ const Constant *BaseCst,
+ uint64_t Offset) {
+ // The global @foo below illustrates a global that uses a got equivalent.
+ //
+ // @bar = global i32 42
+ // @gotequiv = private unnamed_addr constant i32* @bar
+ // @foo = i32 trunc (i64 sub (i64 ptrtoint (i32** @gotequiv to i64),
+ // i64 ptrtoint (i32* @foo to i64))
+ // to i32)
+ //
+ // The cstexpr in @foo is converted into the MCExpr `ME`, where we actually
+ // check whether @foo is suitable to use a GOTPCREL. `ME` is usually in the
+ // form:
+ //
+ // foo = cstexpr, where
+ // cstexpr := <gotequiv> - "." + <cst>
+ // cstexpr := <gotequiv> - (<foo> - <offset from @foo base>) + <cst>
+ //
+ // After canonicalization by EvaluateAsRelocatable `ME` turns into:
+ //
+ // cstexpr := <gotequiv> - <foo> + gotpcrelcst, where
+ // gotpcrelcst := <offset from @foo base> + <cst>
+ //
+ MCValue MV;
+ if (!(*ME)->EvaluateAsRelocatable(MV, nullptr, nullptr) || MV.isAbsolute())
+ return;
+
+ const MCSymbol *GOTEquivSym = &MV.getSymA()->getSymbol();
+ if (!AP.GlobalGOTEquivs.count(GOTEquivSym))
+ return;
+
+ const GlobalValue *BaseGV = dyn_cast<GlobalValue>(BaseCst);
+ if (!BaseGV)
+ return;
+
+ const MCSymbol *BaseSym = AP.getSymbol(BaseGV);
+ if (BaseSym != &MV.getSymB()->getSymbol())
+ return;
+
+ // Make sure to match:
+ //
+ // gotpcrelcst := <offset from @foo base> + <cst>
+ //
+ // If gotpcrelcst is positive it means that we can safely fold the pc rel
+ // displacement into the GOTPCREL. We can also can have an extra offset <cst>
+ // if the target knows how to encode it.
+ //
+ int64_t GOTPCRelCst = Offset + MV.getConstant();
+ if (GOTPCRelCst < 0)
+ return;
+ if (!AP.getObjFileLowering().supportGOTPCRelWithOffset() && GOTPCRelCst != 0)
+ return;
+
+ // Emit the GOT PC relative to replace the got equivalent global, i.e.:
+ //
+ // bar:
+ // .long 42
+ // gotequiv:
+ // .quad bar
+ // foo:
+ // .long gotequiv - "." + <cst>
+ //
+ // is replaced by the target specific equivalent to:
+ //
+ // bar:
+ // .long 42
+ // foo:
+ // .long bar@GOTPCREL+<gotpcrelcst>
+ //
+ AsmPrinter::GOTEquivUsePair Result = AP.GlobalGOTEquivs[GOTEquivSym];
+ const GlobalVariable *GV = Result.first;
+ int NumUses = (int)Result.second;
+ const GlobalValue *FinalGV = dyn_cast<GlobalValue>(GV->getOperand(0));
+ const MCSymbol *FinalSym = AP.getSymbol(FinalGV);
+ *ME = AP.getObjFileLowering().getIndirectSymViaGOTPCRel(
+ FinalSym, MV, Offset, AP.MMI, AP.OutStreamer);
+
+ // Update GOT equivalent usage information
+ --NumUses;
+ if (NumUses >= 0)
+ AP.GlobalGOTEquivs[GOTEquivSym] = std::make_pair(GV, NumUses);
+}
+
+static void emitGlobalConstantImpl(const Constant *CV, AsmPrinter &AP,
+ const Constant *BaseCV, uint64_t Offset) {
const DataLayout *DL = AP.TM.getDataLayout();
uint64_t Size = DL->getTypeAllocSize(CV->getType());
+
+ // Globals with sub-elements such as combinations of arrays and structs
+ // are handled recursively by emitGlobalConstantImpl. Keep track of the
+ // constant symbol base and the current position with BaseCV and Offset.
+ if (!BaseCV && CV->hasOneUse())
+ BaseCV = dyn_cast<Constant>(CV->user_back());
+
if (isa<ConstantAggregateZero>(CV) || isa<UndefValue>(CV))
return AP.OutStreamer.EmitZeros(Size);
return emitGlobalConstantDataSequential(CDS, AP);
if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV))
- return emitGlobalConstantArray(CVA, AP);
+ return emitGlobalConstantArray(CVA, AP, BaseCV, Offset);
if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV))
- return emitGlobalConstantStruct(CVS, AP);
+ return emitGlobalConstantStruct(CVS, AP, BaseCV, Offset);
if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
// Look through bitcasts, which might not be able to be MCExpr'ized (e.g. of
// 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, DL);
+ Constant *New = ConstantFoldConstantExpression(CE, *DL);
if (New && New != CE)
return emitGlobalConstantImpl(New, AP);
}
// Otherwise, it must be a ConstantExpr. Lower it to an MCExpr, then emit it
// thread the streamer with EmitValue.
- AP.OutStreamer.EmitValue(AP.lowerConstant(CV), Size);
+ const MCExpr *ME = AP.lowerConstant(CV);
+
+ // Since lowerConstant already folded and got rid of all IR pointer and
+ // integer casts, detect GOT equivalent accesses by looking into the MCExpr
+ // directly.
+ if (AP.getObjFileLowering().supportIndirectSymViaGOTPCRel())
+ handleIndirectSymViaGOTPCRel(AP, &ME, BaseCV, Offset);
+
+ AP.OutStreamer.EmitValue(ME, Size);
}
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
// Symbol Lowering Routines.
//===----------------------------------------------------------------------===//
-/// GetTempSymbol - Return the MCSymbol corresponding to the assembler
-/// temporary label with the specified stem and unique ID.
-MCSymbol *AsmPrinter::GetTempSymbol(const Twine &Name, unsigned ID) const {
- const DataLayout *DL = TM.getDataLayout();
- return OutContext.GetOrCreateSymbol(Twine(DL->getPrivateGlobalPrefix()) +
- Name + Twine(ID));
-}
-
-/// GetTempSymbol - Return an assembler temporary label with the specified
-/// stem.
-MCSymbol *AsmPrinter::GetTempSymbol(const Twine &Name) const {
- const DataLayout *DL = TM.getDataLayout();
- return OutContext.GetOrCreateSymbol(Twine(DL->getPrivateGlobalPrefix())+
- Name);
+MCSymbol *AsmPrinter::createTempSymbol(const Twine &Name) const {
+ return OutContext.createTempSymbol(Name, true);
}
-
MCSymbol *AsmPrinter::GetBlockAddressSymbol(const BlockAddress *BA) const {
return MMI->getAddrLabelSymbol(BA->getBasicBlock());
}
MCSymbol *AsmPrinter::GetExternalSymbolSymbol(StringRef Sym) const {
SmallString<60> NameStr;
Mang->getNameWithPrefix(NameStr, Sym);
- return OutContext.GetOrCreateSymbol(NameStr.str());
+ return OutContext.GetOrCreateSymbol(NameStr);
}
/// Pin vtable to this file.
AsmPrinterHandler::~AsmPrinterHandler() {}
+
+void AsmPrinterHandler::markFunctionEnd() {}
projects / oota-llvm.git / blobdiff