#include "llvm/CodeGen/AsmPrinter.h"
#include "DwarfDebug.h"
#include "DwarfException.h"
+#include "llvm/DebugInfo.h"
#include "llvm/Module.h"
#include "llvm/CodeGen/GCMetadataPrinter.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineLoopInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/Analysis/ConstantFolding.h"
-#include "llvm/Analysis/DebugInfo.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/DataLayout.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Timer.h"
using namespace llvm;
/// 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 TargetData &TD,
+static unsigned getGVAlignmentLog2(const GlobalValue *GV, const DataLayout &TD,
unsigned InBits = 0) {
unsigned NumBits = 0;
if (const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV))
NumBits = TD.getPreferredAlignmentLog(GVar);
-
+
// If InBits is specified, round it to it.
if (InBits > NumBits)
NumBits = InBits;
-
+
// If the GV has a specified alignment, take it into account.
if (GV->getAlignment() == 0)
return NumBits;
-
+
unsigned GVAlign = Log2_32(GV->getAlignment());
-
+
// If the GVAlign is larger than NumBits, or if we are required to obey
// NumBits because the GV has an assigned section, obey it.
if (GVAlign > NumBits || GV->hasSection())
OutStreamer(Streamer),
LastMI(0), LastFn(0), Counter(~0U), SetCounter(0) {
DD = 0; DE = 0; MMI = 0; LI = 0;
+ CurrentFnSym = CurrentFnSymForSize = 0;
GCMetadataPrinters = 0;
VerboseAsm = Streamer.isVerboseAsm();
}
AsmPrinter::~AsmPrinter() {
assert(DD == 0 && DE == 0 && "Debug/EH info didn't get finalized");
-
+
if (GCMetadataPrinters != 0) {
gcp_map_type &GCMap = getGCMap(GCMetadataPrinters);
-
+
for (gcp_map_type::iterator I = GCMap.begin(), E = GCMap.end(); I != E; ++I)
delete I->second;
delete &GCMap;
GCMetadataPrinters = 0;
}
-
+
delete &OutStreamer;
}
}
-/// getTargetData - Return information about data layout.
-const TargetData &AsmPrinter::getTargetData() const {
- return *TM.getTargetData();
+/// getDataLayout - Return information about data layout.
+const DataLayout &AsmPrinter::getDataLayout() const {
+ return *TM.getDataLayout();
}
/// getCurrentSection() - Return the current section we are emitting to.
// Initialize TargetLoweringObjectFile.
const_cast<TargetLoweringObjectFile&>(getObjFileLowering())
.Initialize(OutContext, TM);
-
- Mang = new Mangler(OutContext, *TM.getTargetData());
-
+
+ Mang = new Mangler(OutContext, *TM.getDataLayout());
+
// Allow the target to emit any magic that it wants at the start of the file.
EmitStartOfAsmFile(M);
if (MAI->doesSupportDebugInformation())
DD = new DwarfDebug(this, &M);
- if (MAI->doesSupportExceptionHandling())
- switch (MAI->getExceptionHandlingType()) {
- default:
- case ExceptionHandling::DwarfTable:
- DE = new DwarfTableException(this);
- break;
- case ExceptionHandling::DwarfCFI:
- DE = new DwarfCFIException(this);
- break;
- }
+ switch (MAI->getExceptionHandlingType()) {
+ case ExceptionHandling::None:
+ return false;
+ case ExceptionHandling::SjLj:
+ case ExceptionHandling::DwarfCFI:
+ DE = new DwarfCFIException(this);
+ return false;
+ case ExceptionHandling::ARM:
+ DE = new ARMException(this);
+ return false;
+ case ExceptionHandling::Win64:
+ DE = new Win64Exception(this);
+ return false;
+ }
- return false;
+ llvm_unreachable("Unknown exception type.");
}
void AsmPrinter::EmitLinkage(unsigned Linkage, MCSymbol *GVSym) const {
case GlobalValue::CommonLinkage:
case GlobalValue::LinkOnceAnyLinkage:
case GlobalValue::LinkOnceODRLinkage:
+ case GlobalValue::LinkOnceODRAutoHideLinkage:
case GlobalValue::WeakAnyLinkage:
case GlobalValue::WeakODRLinkage:
case GlobalValue::LinkerPrivateWeakLinkage:
- case GlobalValue::LinkerPrivateWeakDefAutoLinkage:
if (MAI->getWeakDefDirective() != 0) {
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
if ((GlobalValue::LinkageTypes)Linkage !=
- GlobalValue::LinkerPrivateWeakDefAutoLinkage)
+ GlobalValue::LinkOnceODRAutoHideLinkage)
// .weak_definition _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_WeakDefinition);
else
/// EmitGlobalVariable - Emit the specified global variable to the .s file.
void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
- if (!GV->hasInitializer()) // External globals require no code.
- return;
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GV))
- return;
+ if (GV->hasInitializer()) {
+ // Check to see if this is a special global used by LLVM, if so, emit it.
+ if (EmitSpecialLLVMGlobal(GV))
+ return;
- if (isVerbose()) {
- WriteAsOperand(OutStreamer.GetCommentOS(), GV,
- /*PrintType=*/false, GV->getParent());
- OutStreamer.GetCommentOS() << '\n';
+ if (isVerbose()) {
+ WriteAsOperand(OutStreamer.GetCommentOS(), GV,
+ /*PrintType=*/false, GV->getParent());
+ OutStreamer.GetCommentOS() << '\n';
+ }
}
-
+
MCSymbol *GVSym = Mang->getSymbol(GV);
- EmitVisibility(GVSym, GV->getVisibility());
+ EmitVisibility(GVSym, GV->getVisibility(), !GV->isDeclaration());
+
+ if (!GV->hasInitializer()) // External globals require no extra code.
+ return;
if (MAI->hasDotTypeDotSizeDirective())
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_ELF_TypeObject);
-
+
SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
- const TargetData *TD = TM.getTargetData();
+ const DataLayout *TD = TM.getDataLayout();
uint64_t Size = TD->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);
-
+
// Handle common and BSS local symbols (.lcomm).
if (GVKind.isCommon() || GVKind.isBSSLocal()) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (isVerbose()) {
- WriteAsOperand(OutStreamer.GetCommentOS(), GV,
- /*PrintType=*/false, GV->getParent());
- OutStreamer.GetCommentOS() << '\n';
- }
-
+ unsigned Align = 1 << AlignLog;
+
// Handle common symbols.
if (GVKind.isCommon()) {
- unsigned Align = 1 << AlignLog;
if (!getObjFileLowering().getCommDirectiveSupportsAlignment())
Align = 0;
-
+
// .comm _foo, 42, 4
OutStreamer.EmitCommonSymbol(GVSym, Size, Align);
return;
}
-
+
// Handle local BSS symbols.
if (MAI->hasMachoZeroFillDirective()) {
const MCSection *TheSection =
getObjFileLowering().SectionForGlobal(GV, GVKind, Mang, TM);
// .zerofill __DATA, __bss, _foo, 400, 5
- OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
+ OutStreamer.EmitZerofill(TheSection, GVSym, Size, Align);
return;
}
-
- if (MAI->hasLCOMMDirective()) {
+
+ if (Align == 1 ||
+ MAI->getLCOMMDirectiveAlignmentType() != LCOMM::NoAlignment) {
// .lcomm _foo, 42
- OutStreamer.EmitLocalCommonSymbol(GVSym, Size);
+ OutStreamer.EmitLocalCommonSymbol(GVSym, Size, Align);
return;
}
- unsigned Align = 1 << AlignLog;
if (!getObjFileLowering().getCommDirectiveSupportsAlignment())
Align = 0;
-
+
// .local _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Local);
// .comm _foo, 42, 4
OutStreamer.EmitCommonSymbol(GVSym, Size, Align);
return;
}
-
+
const MCSection *TheSection =
getObjFileLowering().SectionForGlobal(GV, GVKind, Mang, TM);
// emission.
if (GVKind.isBSSExtern() && MAI->hasMachoZeroFillDirective()) {
if (Size == 0) Size = 1; // zerofill of 0 bytes is undefined.
-
+
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Global);
// .zerofill __DATA, __common, _foo, 400, 5
OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
return;
}
-
+
// Handle thread local data for mach-o which requires us to output an
// additional structure of data and mangle the original symbol so that we
// can reference it later.
// specific code.
if (GVKind.isThreadLocal() && MAI->hasMachoTBSSDirective()) {
// Emit the .tbss symbol
- MCSymbol *MangSym =
+ MCSymbol *MangSym =
OutContext.GetOrCreateSymbol(GVSym->getName() + Twine("$tlv$init"));
-
+
if (GVKind.isThreadBSS())
OutStreamer.EmitTBSSSymbol(TheSection, MangSym, Size, 1 << AlignLog);
else if (GVKind.isThreadData()) {
OutStreamer.SwitchSection(TheSection);
- EmitAlignment(AlignLog, GV);
+ EmitAlignment(AlignLog, GV);
OutStreamer.EmitLabel(MangSym);
-
+
EmitGlobalConstant(GV->getInitializer());
}
-
+
OutStreamer.AddBlankLine();
-
+
// Emit the variable struct for the runtime.
- const MCSection *TLVSect
+ const MCSection *TLVSect
= getObjFileLowering().getTLSExtraDataSection();
-
+
OutStreamer.SwitchSection(TLVSect);
// Emit the linkage here.
EmitLinkage(GV->getLinkage(), GVSym);
OutStreamer.EmitLabel(GVSym);
-
+
// Three pointers in size:
// - __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 AS = GV->getType()->getAddressSpace();
+ unsigned PtrSize = TD->getPointerSizeInBits(AS)/8;
OutStreamer.EmitSymbolValue(GetExternalSymbolSymbol("_tlv_bootstrap"),
PtrSize, 0);
OutStreamer.EmitIntValue(0, PtrSize, 0);
OutStreamer.EmitSymbolValue(MangSym, PtrSize, 0);
-
+
OutStreamer.AddBlankLine();
return;
}
if (MAI->hasDotTypeDotSizeDirective())
// .size foo, 42
OutStreamer.EmitELFSize(GVSym, MCConstantExpr::Create(Size, OutContext));
-
+
OutStreamer.AddBlankLine();
}
void AsmPrinter::EmitFunctionHeader() {
// Print out constants referenced by the function
EmitConstantPool();
-
+
// Print the 'header' of function.
const Function *F = MF->getFunction();
// Emit the CurrentFnSym. This is a virtual function to allow targets to
// do their wild and crazy things as required.
EmitFunctionEntryLabel();
-
+
// If the function had address-taken blocks that got deleted, then we have
// references to the dangling symbols. Emit them at the start of the function
// so that we don't get references to undefined symbols.
OutStreamer.AddComment("Address taken block that was later removed");
OutStreamer.EmitLabel(DeadBlockSyms[i]);
}
-
+
// Add some workaround for linkonce linkage on Cygwin\MinGW.
if (MAI->getLinkOnceDirective() != 0 &&
(F->hasLinkOnceLinkage() || F->hasWeakLinkage())) {
// FIXME: What is this?
- MCSymbol *FakeStub =
+ MCSymbol *FakeStub =
OutContext.GetOrCreateSymbol(Twine("Lllvm$workaround$fake$stub$")+
CurrentFnSym->getName());
OutStreamer.EmitLabel(FakeStub);
}
-
+
// Emit pre-function debug and/or EH information.
if (DE) {
NamedRegionTimer T(EHTimerName, DWARFGroupName, TimePassesIsEnabled);
"' label emitted multiple times to assembly file");
}
-
-static void EmitDebugLoc(DebugLoc DL, const MachineFunction *MF,
- raw_ostream &CommentOS) {
- const LLVMContext &Ctx = MF->getFunction()->getContext();
- if (!DL.isUnknown()) { // Print source line info.
- DIScope Scope(DL.getScope(Ctx));
- // Omit the directory, because it's likely to be long and uninteresting.
- if (Scope.Verify())
- CommentOS << Scope.getFilename();
- else
- CommentOS << "<unknown>";
- CommentOS << ':' << DL.getLine();
- if (DL.getCol() != 0)
- CommentOS << ':' << DL.getCol();
- DebugLoc InlinedAtDL = DebugLoc::getFromDILocation(DL.getInlinedAt(Ctx));
- if (!InlinedAtDL.isUnknown()) {
- CommentOS << "[ ";
- EmitDebugLoc(InlinedAtDL, MF, CommentOS);
- CommentOS << " ]";
- }
- }
-}
-
-/// EmitComments - Pretty-print comments for instructions.
-static void EmitComments(const MachineInstr &MI, raw_ostream &CommentOS) {
+/// emitComments - Pretty-print comments for instructions.
+static void emitComments(const MachineInstr &MI, raw_ostream &CommentOS) {
const MachineFunction *MF = MI.getParent()->getParent();
const TargetMachine &TM = MF->getTarget();
-
- DebugLoc DL = MI.getDebugLoc();
- if (!DL.isUnknown()) { // Print source line info.
- EmitDebugLoc(DL, MF, CommentOS);
- CommentOS << '\n';
- }
-
+
// Check for spills and reloads
int FI;
-
+
const MachineFrameInfo *FrameInfo = MF->getFrameInfo();
-
+
// We assume a single instruction only has a spill or reload, not
// both.
const MachineMemOperand *MMO;
if (FrameInfo->isSpillSlotObjectIndex(FI))
CommentOS << MMO->getSize() << "-byte Folded Spill\n";
}
-
+
// Check for spill-induced copies
if (MI.getAsmPrinterFlag(MachineInstr::ReloadReuse))
CommentOS << " Reload Reuse\n";
}
-/// EmitImplicitDef - This method emits the specified machine instruction
+/// emitImplicitDef - This method emits the specified machine instruction
/// that is an implicit def.
-static void EmitImplicitDef(const MachineInstr *MI, AsmPrinter &AP) {
+static void emitImplicitDef(const MachineInstr *MI, AsmPrinter &AP) {
unsigned RegNo = MI->getOperand(0).getReg();
AP.OutStreamer.AddComment(Twine("implicit-def: ") +
AP.TM.getRegisterInfo()->getName(RegNo));
AP.OutStreamer.AddBlankLine();
}
-static void EmitKill(const MachineInstr *MI, AsmPrinter &AP) {
+static void emitKill(const MachineInstr *MI, AsmPrinter &AP) {
std::string Str = "kill:";
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &Op = MI->getOperand(i);
AP.OutStreamer.AddBlankLine();
}
-/// EmitDebugValueComment - This method handles the target-independent form
+/// emitDebugValueComment - This method handles the target-independent form
/// of DBG_VALUE, returning true if it was able to do so. A false return
/// means the target will need to handle MI in EmitInstruction.
-static bool EmitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
+static bool emitDebugValueComment(const MachineInstr *MI, AsmPrinter &AP) {
// This code handles only the 3-operand target-independent form.
if (MI->getNumOperands() != 3)
return false;
}
} else if (MI->getOperand(0).isImm()) {
OS << MI->getOperand(0).getImm();
+ } else if (MI->getOperand(0).isCImm()) {
+ MI->getOperand(0).getCImm()->getValue().print(OS, false /*isSigned*/);
} else {
assert(MI->getOperand(0).isReg() && "Unknown operand type");
if (MI->getOperand(0).getReg() == 0) {
}
OS << AP.TM.getRegisterInfo()->getName(MI->getOperand(0).getReg());
}
-
+
OS << '+' << MI->getOperand(1).getImm();
// NOTE: Want this comment at start of line, don't emit with AddComment.
AP.OutStreamer.EmitRawText(OS.str());
return true;
}
+AsmPrinter::CFIMoveType AsmPrinter::needsCFIMoves() {
+ if (MAI->getExceptionHandlingType() == ExceptionHandling::DwarfCFI &&
+ MF->getFunction()->needsUnwindTableEntry())
+ return CFI_M_EH;
+
+ if (MMI->hasDebugInfo())
+ return CFI_M_Debug;
+
+ return CFI_M_None;
+}
+
+bool AsmPrinter::needsSEHMoves() {
+ return MAI->getExceptionHandlingType() == ExceptionHandling::Win64 &&
+ MF->getFunction()->needsUnwindTableEntry();
+}
+
+bool AsmPrinter::needsRelocationsForDwarfStringPool() const {
+ return MAI->doesDwarfUseRelocationsAcrossSections();
+}
+
+void AsmPrinter::emitPrologLabel(const MachineInstr &MI) {
+ MCSymbol *Label = MI.getOperand(0).getMCSymbol();
+
+ if (MAI->getExceptionHandlingType() != ExceptionHandling::DwarfCFI)
+ return;
+
+ if (needsCFIMoves() == CFI_M_None)
+ return;
+
+ if (MMI->getCompactUnwindEncoding() != 0)
+ OutStreamer.EmitCompactUnwindEncoding(MMI->getCompactUnwindEncoding());
+
+ MachineModuleInfo &MMI = MF->getMMI();
+ std::vector<MachineMove> &Moves = MMI.getFrameMoves();
+ bool FoundOne = false;
+ (void)FoundOne;
+ for (std::vector<MachineMove>::iterator I = Moves.begin(),
+ E = Moves.end(); I != E; ++I) {
+ if (I->getLabel() == Label) {
+ EmitCFIFrameMove(*I);
+ FoundOne = true;
+ }
+ }
+ assert(FoundOne);
+}
+
/// EmitFunctionBody - This method emits the body and trailer for a
/// function.
void AsmPrinter::EmitFunctionBody() {
// Emit target-specific gunk before the function body.
EmitFunctionBodyStart();
-
+
bool ShouldPrintDebugScopes = DD && MMI->hasDebugInfo();
-
+
// Print out code for the function.
bool HasAnyRealCode = false;
const MachineInstr *LastMI = 0;
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
DD->beginInstruction(II);
}
-
+
if (isVerbose())
- EmitComments(*II, OutStreamer.GetCommentOS());
+ emitComments(*II, OutStreamer.GetCommentOS());
switch (II->getOpcode()) {
case TargetOpcode::PROLOG_LABEL:
+ emitPrologLabel(*II);
+ break;
+
case TargetOpcode::EH_LABEL:
case TargetOpcode::GC_LABEL:
OutStreamer.EmitLabel(II->getOperand(0).getMCSymbol());
break;
case TargetOpcode::DBG_VALUE:
if (isVerbose()) {
- if (!EmitDebugValueComment(II, *this))
+ if (!emitDebugValueComment(II, *this))
EmitInstruction(II);
}
break;
case TargetOpcode::IMPLICIT_DEF:
- if (isVerbose()) EmitImplicitDef(II, *this);
+ if (isVerbose()) emitImplicitDef(II, *this);
break;
case TargetOpcode::KILL:
- if (isVerbose()) EmitKill(II, *this);
+ if (isVerbose()) emitKill(II, *this);
break;
default:
+ if (!TM.hasMCUseLoc())
+ MCLineEntry::Make(&OutStreamer, getCurrentSection());
+
EmitInstruction(II);
break;
}
-
+
if (ShouldPrintDebugScopes) {
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
DD->endInstruction(II);
} else // Target not mc-ized yet.
OutStreamer.EmitRawText(StringRef("\tnop\n"));
}
-
+
+ const Function *F = MF->getFunction();
+ for (Function::const_iterator i = F->begin(), e = F->end(); i != e; ++i) {
+ const BasicBlock *BB = i;
+ if (!BB->hasAddressTaken())
+ continue;
+ MCSymbol *Sym = GetBlockAddressSymbol(BB);
+ if (Sym->isDefined())
+ continue;
+ OutStreamer.AddComment("Address of block that was removed by CodeGen");
+ OutStreamer.EmitLabel(Sym);
+ }
+
// Emit target-specific gunk after the function body.
EmitFunctionBodyEnd();
-
+
// If the target wants a .size directive for the size of the function, emit
// it.
if (MAI->hasDotTypeDotSizeDirective()) {
// difference between the function label and the temp label.
MCSymbol *FnEndLabel = OutContext.CreateTempSymbol();
OutStreamer.EmitLabel(FnEndLabel);
-
+
const MCExpr *SizeExp =
MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(FnEndLabel, OutContext),
- MCSymbolRefExpr::Create(CurrentFnSym, OutContext),
+ MCSymbolRefExpr::Create(CurrentFnSymForSize,
+ OutContext),
OutContext);
OutStreamer.EmitELFSize(CurrentFnSym, SizeExp);
}
-
+
// Emit post-function debug information.
if (DD) {
NamedRegionTimer T(DbgTimerName, DWARFGroupName, TimePassesIsEnabled);
DE->EndFunction();
}
MMI->EndFunction();
-
+
// Print out jump tables referenced by the function.
EmitJumpTableInfo();
-
+
OutStreamer.AddBlankLine();
}
/// getDebugValueLocation - Get location information encoded by DBG_VALUE
/// operands.
-MachineLocation AsmPrinter::getDebugValueLocation(const MachineInstr *MI) const {
+MachineLocation AsmPrinter::
+getDebugValueLocation(const MachineInstr *MI) const {
// Target specific DBG_VALUE instructions are handled by each target.
return MachineLocation();
}
+/// EmitDwarfRegOp - Emit dwarf register operation.
+void AsmPrinter::EmitDwarfRegOp(const MachineLocation &MLoc) const {
+ const TargetRegisterInfo *TRI = TM.getRegisterInfo();
+ int Reg = TRI->getDwarfRegNum(MLoc.getReg(), false);
+
+ for (MCSuperRegIterator SR(MLoc.getReg(), TRI); SR.isValid() && Reg < 0;
+ ++SR) {
+ Reg = TRI->getDwarfRegNum(*SR, false);
+ // FIXME: Get the bit range this register uses of the superregister
+ // so that we can produce a DW_OP_bit_piece
+ }
+
+ // FIXME: Handle cases like a super register being encoded as
+ // DW_OP_reg 32 DW_OP_piece 4 DW_OP_reg 33
+
+ // FIXME: We have no reasonable way of handling errors in here. The
+ // caller might be in the middle of an dwarf expression. We should
+ // probably assert that Reg >= 0 once debug info generation is more mature.
+
+ if (int Offset = MLoc.getOffset()) {
+ if (Reg < 32) {
+ OutStreamer.AddComment(
+ dwarf::OperationEncodingString(dwarf::DW_OP_breg0 + Reg));
+ EmitInt8(dwarf::DW_OP_breg0 + Reg);
+ } else {
+ OutStreamer.AddComment("DW_OP_bregx");
+ EmitInt8(dwarf::DW_OP_bregx);
+ OutStreamer.AddComment(Twine(Reg));
+ EmitULEB128(Reg);
+ }
+ EmitSLEB128(Offset);
+ } else {
+ if (Reg < 32) {
+ OutStreamer.AddComment(
+ dwarf::OperationEncodingString(dwarf::DW_OP_reg0 + Reg));
+ EmitInt8(dwarf::DW_OP_reg0 + Reg);
+ } else {
+ OutStreamer.AddComment("DW_OP_regx");
+ EmitInt8(dwarf::DW_OP_regx);
+ OutStreamer.AddComment(Twine(Reg));
+ EmitULEB128(Reg);
+ }
+ }
+
+ // FIXME: Produce a DW_OP_bit_piece if we used a superregister
+}
+
bool AsmPrinter::doFinalization(Module &M) {
// Emit global variables.
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
EmitVisibility(Name, V, false);
}
+ // Emit module flags.
+ SmallVector<Module::ModuleFlagEntry, 8> ModuleFlags;
+ M.getModuleFlagsMetadata(ModuleFlags);
+ if (!ModuleFlags.empty())
+ getObjFileLowering().emitModuleFlags(OutStreamer, ModuleFlags, Mang, TM);
+
// Finalize debug and EH information.
if (DE) {
{
}
delete DD; DD = 0;
}
-
+
// If the target wants to know about weak references, print them all.
if (MAI->getWeakRefDirective()) {
// FIXME: This is not lazy, it would be nice to only print weak references
if (!I->hasExternalWeakLinkage()) continue;
OutStreamer.EmitSymbolAttribute(Mang->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);
I != E; ++I) {
MCSymbol *Name = Mang->getSymbol(I);
- const GlobalValue *GV = cast<GlobalValue>(I->getAliasedGlobal());
+ const GlobalValue *GV = I->getAliasedGlobal();
MCSymbol *Target = Mang->getSymbol(GV);
if (I->hasExternalLinkage() || !MAI->getWeakRefDirective())
EmitVisibility(Name, I->getVisibility());
// Emit the directives as assignments aka .set:
- OutStreamer.EmitAssignment(Name,
+ OutStreamer.EmitAssignment(Name,
MCSymbolRefExpr::Create(Target, OutContext));
}
}
if (!InitTrampolineIntrinsic || InitTrampolineIntrinsic->use_empty())
if (const MCSection *S = MAI->getNonexecutableStackSection(OutContext))
OutStreamer.SwitchSection(S);
-
+
// 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;
MMI = 0;
-
+
OutStreamer.Finish();
return false;
}
this->MF = &MF;
// Get the function symbol.
CurrentFnSym = Mang->getSymbol(MF.getFunction());
+ CurrentFnSymForSize = CurrentFnSym;
if (isVerbose())
LI = &getAnalysis<MachineLoopInfo>();
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
const MachineConstantPoolEntry &CPE = CP[i];
unsigned Align = CPE.getAlignment();
-
+
SectionKind Kind;
switch (CPE.getRelocationInfo()) {
default: llvm_unreachable("Unknown section kind");
Kind = SectionKind::getReadOnlyWithRelLocal();
break;
case 0:
- switch (TM.getTargetData()->getTypeAllocSize(CPE.getType())) {
+ switch (TM.getDataLayout()->getTypeAllocSize(CPE.getType())) {
case 4: Kind = SectionKind::getMergeableConst4(); break;
case 8: Kind = SectionKind::getMergeableConst8(); break;
case 16: Kind = SectionKind::getMergeableConst16();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;
unsigned NewOffset = (Offset + AlignMask) & ~AlignMask;
OutStreamer.EmitFill(NewOffset - Offset, 0/*fillval*/, 0/*addrspace*/);
- const Type *Ty = CPE.getType();
- Offset = NewOffset + TM.getTargetData()->getTypeAllocSize(Ty);
+ Type *Ty = CPE.getType();
+ Offset = NewOffset + TM.getDataLayout()->getTypeAllocSize(Ty);
OutStreamer.EmitLabel(GetCPISymbol(CPI));
if (CPE.isMachineConstantPoolEntry())
}
/// EmitJumpTableInfo - Print assembly representations of the jump tables used
-/// by the current function to the current output stream.
+/// by the current function to the current output stream.
///
void AsmPrinter::EmitJumpTableInfo() {
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables();
if (JT.empty()) return;
- // Pick the directive to use to print the jump table entries, and switch to
+ // Pick the directive to use to print the jump table entries, and switch to
// the appropriate section.
const Function *F = MF->getFunction();
bool JTInDiffSection = false;
OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F,Mang,TM));
} else {
// Otherwise, drop it in the readonly section.
- const MCSection *ReadOnlySection =
+ const MCSection *ReadOnlySection =
getObjFileLowering().getSectionForConstant(SectionKind::getReadOnly());
OutStreamer.SwitchSection(ReadOnlySection);
JTInDiffSection = true;
}
- EmitAlignment(Log2_32(MJTI->getEntryAlignment(*TM.getTargetData())));
-
+ EmitAlignment(Log2_32(MJTI->getEntryAlignment(*TM.getDataLayout())));
+
+ // Jump tables in code sections are marked with a data_region directive
+ // where that's supported.
+ if (!JTInDiffSection)
+ OutStreamer.EmitDataRegion(MCDR_DataRegionJT32);
+
for (unsigned JTI = 0, e = JT.size(); JTI != e; ++JTI) {
const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs;
-
- // If this jump table was deleted, ignore it.
+
+ // If this jump table was deleted, ignore it.
if (JTBBs.empty()) continue;
// For the EK_LabelDifference32 entry, if the target supports .set, emit a
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
const MachineBasicBlock *MBB = JTBBs[ii];
if (!EmittedSets.insert(MBB)) continue;
-
+
// .set LJTSet, LBB32-base
const MCExpr *LHS =
MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext);
OutStreamer.EmitAssignment(GetJTSetSymbol(JTI, MBB->getNumber()),
MCBinaryExpr::CreateSub(LHS, Base, OutContext));
}
- }
-
+ }
+
// On some targets (e.g. Darwin) we want to emit two consecutive 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
for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
EmitJumpTableEntry(MJTI, JTBBs[ii], JTI);
}
+ if (!JTInDiffSection)
+ OutStreamer.EmitDataRegion(MCDR_DataRegionEnd);
}
/// EmitJumpTableEntry - Emit a jump table entry for the specified MBB to the
const MCExpr *Value = 0;
switch (MJTI->getEntryKind()) {
case MachineJumpTableInfo::EK_Inline:
- llvm_unreachable("Cannot emit EK_Inline jump table entry"); break;
+ llvm_unreachable("Cannot emit EK_Inline jump table entry");
case MachineJumpTableInfo::EK_Custom32:
Value = TM.getTargetLowering()->LowerCustomJumpTableEntry(MJTI, MBB, UID,
OutContext);
return;
}
+ case MachineJumpTableInfo::EK_GPRel64BlockAddress: {
+ // EK_GPRel64BlockAddress - Each entry is an address of block, encoded
+ // with a relocation as gp-relative, e.g.:
+ // .gpdword LBB123
+ MCSymbol *MBBSym = MBB->getSymbol();
+ OutStreamer.EmitGPRel64Value(MCSymbolRefExpr::Create(MBBSym, OutContext));
+ return;
+ }
+
case MachineJumpTableInfo::EK_LabelDifference32: {
// EK_LabelDifference32 - Each entry is the address of the block minus
// the address of the jump table. This is used for PIC jump tables where
// If the .set directive is supported, this is emitted as:
// .set L4_5_set_123, LBB123 - LJTI1_2
// .word L4_5_set_123
-
- // If we have emitted set directives for the jump table entries, print
+
+ // If we have emitted set directives for the jump table entries, print
// them rather than the entries themselves. If we're emitting PIC, then
// emit the table entries as differences between two text section labels.
if (MAI->hasSetDirective()) {
break;
}
}
-
+
assert(Value && "Unknown entry kind!");
-
- unsigned EntrySize = MJTI->getEntrySize(*TM.getTargetData());
+
+ unsigned EntrySize = MJTI->getEntrySize(*TM.getDataLayout());
OutStreamer.EmitValue(Value, EntrySize, /*addrspace*/0);
}
if (GV->getSection() == "llvm.metadata" ||
GV->hasAvailableExternallyLinkage())
return true;
-
+
if (!GV->hasAppendingLinkage()) return false;
assert(GV->hasInitializer() && "Not a special LLVM global!");
-
- const TargetData *TD = TM.getTargetData();
- unsigned Align = Log2_32(TD->getPointerPrefAlignment());
+
if (GV->getName() == "llvm.global_ctors") {
- OutStreamer.SwitchSection(getObjFileLowering().getStaticCtorSection());
- EmitAlignment(Align);
- EmitXXStructorList(GV->getInitializer());
-
+ EmitXXStructorList(GV->getInitializer(), /* isCtor */ true);
+
if (TM.getRelocationModel() == Reloc::Static &&
MAI->hasStaticCtorDtorReferenceInStaticMode()) {
StringRef Sym(".constructors_used");
MCSA_Reference);
}
return true;
- }
-
+ }
+
if (GV->getName() == "llvm.global_dtors") {
- OutStreamer.SwitchSection(getObjFileLowering().getStaticDtorSection());
- EmitAlignment(Align);
- EmitXXStructorList(GV->getInitializer());
+ EmitXXStructorList(GV->getInitializer(), /* isCtor */ false);
if (TM.getRelocationModel() == Reloc::Static &&
MAI->hasStaticCtorDtorReferenceInStaticMode()) {
}
return true;
}
-
+
return false;
}
/// 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) {
+void AsmPrinter::EmitLLVMUsedList(const Constant *List) {
// Should be an array of 'i8*'.
- ConstantArray *InitList = dyn_cast<ConstantArray>(List);
+ const ConstantArray *InitList = dyn_cast<ConstantArray>(List);
if (InitList == 0) return;
-
+
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
const GlobalValue *GV =
dyn_cast<GlobalValue>(InitList->getOperand(i)->stripPointerCasts());
}
}
-/// EmitXXStructorList - Emit the ctor or dtor list. This just prints out the
-/// function pointers, ignoring the init priority.
-void AsmPrinter::EmitXXStructorList(Constant *List) {
+typedef std::pair<unsigned, Constant*> Structor;
+
+static bool priority_order(const Structor& lhs, const Structor& rhs) {
+ return lhs.first < rhs.first;
+}
+
+/// EmitXXStructorList - Emit the ctor or dtor list taking into account the init
+/// priority.
+void AsmPrinter::EmitXXStructorList(const Constant *List, bool isCtor) {
// Should be an array of '{ int, void ()* }' structs. The first value is the
- // init priority, which we ignore.
+ // init priority.
if (!isa<ConstantArray>(List)) return;
- ConstantArray *InitList = cast<ConstantArray>(List);
- for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
- if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
- if (CS->getNumOperands() != 2) return; // Not array of 2-element structs.
-
- if (CS->getOperand(1)->isNullValue())
- return; // Found a null terminator, exit printing.
- // Emit the function pointer.
- EmitGlobalConstant(CS->getOperand(1));
- }
+
+ // Sanity check the structors list.
+ const ConstantArray *InitList = dyn_cast<ConstantArray>(List);
+ if (!InitList) return; // Not an array!
+ StructType *ETy = dyn_cast<StructType>(InitList->getType()->getElementType());
+ if (!ETy || ETy->getNumElements() != 2) return; // Not an array of pairs!
+ if (!isa<IntegerType>(ETy->getTypeAtIndex(0U)) ||
+ !isa<PointerType>(ETy->getTypeAtIndex(1U))) return; // Not (int, ptr).
+
+ // Gather the structors in a form that's convenient for sorting by priority.
+ SmallVector<Structor, 8> Structors;
+ for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) {
+ ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i));
+ if (!CS) continue; // Malformed.
+ if (CS->getOperand(1)->isNullValue())
+ break; // Found a null terminator, skip the rest.
+ ConstantInt *Priority = dyn_cast<ConstantInt>(CS->getOperand(0));
+ if (!Priority) continue; // Malformed.
+ Structors.push_back(std::make_pair(Priority->getLimitedValue(65535),
+ CS->getOperand(1)));
+ }
+
+ // Emit the function pointers in the target-specific order
+ const DataLayout *TD = TM.getDataLayout();
+ unsigned Align = Log2_32(TD->getPointerPrefAlignment(0));
+ std::stable_sort(Structors.begin(), Structors.end(), priority_order);
+ for (unsigned i = 0, e = Structors.size(); i != e; ++i) {
+ const MCSection *OutputSection =
+ (isCtor ?
+ getObjFileLowering().getStaticCtorSection(Structors[i].first) :
+ getObjFileLowering().getStaticDtorSection(Structors[i].first));
+ OutStreamer.SwitchSection(OutputSection);
+ if (OutStreamer.getCurrentSection() != OutStreamer.getPreviousSection())
+ EmitAlignment(Align);
+ EmitXXStructor(Structors[i].second);
+ }
}
//===--------------------------------------------------------------------===//
void AsmPrinter::EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo,
unsigned Size) const {
// Get the Hi-Lo expression.
- const MCExpr *Diff =
+ const MCExpr *Diff =
MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(Hi, OutContext),
MCSymbolRefExpr::Create(Lo, OutContext),
OutContext);
-
+
if (!MAI->hasSetDirective()) {
OutStreamer.EmitValue(Diff, Size, 0/*AddrSpace*/);
return;
OutStreamer.EmitSymbolValue(SetLabel, Size, 0/*AddrSpace*/);
}
-/// EmitLabelOffsetDifference - Emit something like ".long Hi+Offset-Lo"
+/// EmitLabelOffsetDifference - Emit something like ".long Hi+Offset-Lo"
/// where the size in bytes of the directive is specified by Size and Hi/Lo
/// specify the labels. This implicitly uses .set if it is available.
void AsmPrinter::EmitLabelOffsetDifference(const MCSymbol *Hi, uint64_t Offset,
- const MCSymbol *Lo, unsigned Size)
+ const MCSymbol *Lo, unsigned Size)
const {
-
+
// Emit Hi+Offset - Lo
// Get the Hi+Offset expression.
const MCExpr *Plus =
- MCBinaryExpr::CreateAdd(MCSymbolRefExpr::Create(Hi, OutContext),
+ MCBinaryExpr::CreateAdd(MCSymbolRefExpr::Create(Hi, OutContext),
MCConstantExpr::Create(Offset, OutContext),
OutContext);
-
+
// Get the Hi+Offset-Lo expression.
- const MCExpr *Diff =
+ const MCExpr *Diff =
MCBinaryExpr::CreateSub(Plus,
MCSymbolRefExpr::Create(Lo, OutContext),
OutContext);
-
- if (!MAI->hasSetDirective())
+
+ if (!MAI->hasSetDirective())
OutStreamer.EmitValue(Diff, 4, 0/*AddrSpace*/);
else {
// Otherwise, emit with .set (aka assignment).
}
}
-/// EmitLabelPlusOffset - Emit something like ".long Label+Offset"
+/// EmitLabelPlusOffset - Emit something like ".long Label+Offset"
/// where the size in bytes of the directive is specified by Size and Label
/// specifies the label. This implicitly uses .set if it is available.
void AsmPrinter::EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
- unsigned Size)
+ unsigned Size)
const {
-
- // Emit Label+Offset
- const MCExpr *Plus =
- MCBinaryExpr::CreateAdd(MCSymbolRefExpr::Create(Label, OutContext),
- MCConstantExpr::Create(Offset, OutContext),
- OutContext);
-
- OutStreamer.EmitValue(Plus, 4, 0/*AddrSpace*/);
+
+ // Emit Label+Offset (or just Label if Offset is zero)
+ const MCExpr *Expr = MCSymbolRefExpr::Create(Label, OutContext);
+ if (Offset)
+ Expr = MCBinaryExpr::CreateAdd(Expr,
+ MCConstantExpr::Create(Offset, OutContext),
+ OutContext);
+
+ OutStreamer.EmitValue(Expr, Size, 0/*AddrSpace*/);
}
-
+
//===----------------------------------------------------------------------===//
// if required for correctness.
//
void AsmPrinter::EmitAlignment(unsigned NumBits, const GlobalValue *GV) const {
- if (GV) NumBits = getGVAlignmentLog2(GV, *TM.getTargetData(), NumBits);
-
+ if (GV) NumBits = getGVAlignmentLog2(GV, *TM.getDataLayout(), NumBits);
+
if (NumBits == 0) return; // 1-byte aligned: no need to emit alignment.
-
+
if (getCurrentSection()->getKind().isText())
OutStreamer.EmitCodeAlignment(1 << NumBits);
else
// Constant emission.
//===----------------------------------------------------------------------===//
-/// LowerConstant - Lower the specified LLVM Constant to an MCExpr.
+/// lowerConstant - Lower the specified LLVM Constant to an MCExpr.
///
-static const MCExpr *LowerConstant(const Constant *CV, AsmPrinter &AP) {
+static const MCExpr *lowerConstant(const Constant *CV, AsmPrinter &AP) {
MCContext &Ctx = AP.OutContext;
-
+
if (CV->isNullValue() || isa<UndefValue>(CV))
return MCConstantExpr::Create(0, Ctx);
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV))
return MCConstantExpr::Create(CI->getZExtValue(), Ctx);
-
+
if (const GlobalValue *GV = dyn_cast<GlobalValue>(CV))
return MCSymbolRefExpr::Create(AP.Mang->getSymbol(GV), Ctx);
if (const BlockAddress *BA = dyn_cast<BlockAddress>(CV))
return MCSymbolRefExpr::Create(AP.GetBlockAddressSymbol(BA), Ctx);
-
+
const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV);
if (CE == 0) {
llvm_unreachable("Unknown constant value to lower!");
- return MCConstantExpr::Create(0, Ctx);
}
-
+
switch (CE->getOpcode()) {
default:
// If the code isn't optimized, there may be outstanding folding
- // opportunities. Attempt to fold the expression using TargetData as a
+ // opportunities. Attempt to fold the expression using DataLayout as a
// last resort before giving up.
if (Constant *C =
- ConstantFoldConstantExpression(CE, AP.TM.getTargetData()))
+ ConstantFoldConstantExpression(CE, AP.TM.getDataLayout()))
if (C != CE)
- return LowerConstant(C, AP);
+ return lowerConstant(C, AP);
// Otherwise report the problem to the user.
{
!AP.MF ? 0 : AP.MF->getFunction()->getParent());
report_fatal_error(OS.str());
}
- return MCConstantExpr::Create(0, Ctx);
case Instruction::GetElementPtr: {
- const TargetData &TD = *AP.TM.getTargetData();
+ const DataLayout &TD = *AP.TM.getDataLayout();
// Generate a symbolic expression for the byte address
const Constant *PtrVal = CE->getOperand(0);
SmallVector<Value*, 8> IdxVec(CE->op_begin()+1, CE->op_end());
- int64_t Offset = TD.getIndexedOffset(PtrVal->getType(), &IdxVec[0],
- IdxVec.size());
-
- const MCExpr *Base = LowerConstant(CE->getOperand(0), AP);
+ int64_t Offset = TD.getIndexedOffset(PtrVal->getType(), IdxVec);
+
+ const MCExpr *Base = lowerConstant(CE->getOperand(0), AP);
if (Offset == 0)
return Base;
-
+
+ unsigned AS = cast<PointerType>(CE->getType())->getAddressSpace();
// Truncate/sext the offset to the pointer size.
- if (TD.getPointerSizeInBits() != 64) {
- int SExtAmount = 64-TD.getPointerSizeInBits();
- Offset = (Offset << SExtAmount) >> SExtAmount;
- }
-
+ unsigned Width = TD.getPointerSizeInBits(AS);
+ if (Width < 64)
+ Offset = SignExtend64(Offset, Width);
+
return MCBinaryExpr::CreateAdd(Base, MCConstantExpr::Create(Offset, Ctx),
Ctx);
}
-
+
case Instruction::Trunc:
// We emit the value and depend on the assembler to truncate the generated
// expression properly. This is important for differences between
// is reasonable to treat their delta as a 32-bit value.
// FALL THROUGH.
case Instruction::BitCast:
- return LowerConstant(CE->getOperand(0), AP);
+ return lowerConstant(CE->getOperand(0), AP);
case Instruction::IntToPtr: {
- const TargetData &TD = *AP.TM.getTargetData();
+ const DataLayout &TD = *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()),
false/*ZExt*/);
- return LowerConstant(Op, AP);
+ return lowerConstant(Op, AP);
}
-
+
case Instruction::PtrToInt: {
- const TargetData &TD = *AP.TM.getTargetData();
+ const DataLayout &TD = *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);
- const Type *Ty = CE->getType();
+ Type *Ty = CE->getType();
- const MCExpr *OpExpr = LowerConstant(Op, AP);
+ const MCExpr *OpExpr = lowerConstant(Op, AP);
// We can emit the pointer value into this slot if the slot is an
// integer slot equal to the size of the pointer.
const MCExpr *MaskExpr = MCConstantExpr::Create(~0ULL >> (64-InBits), Ctx);
return MCBinaryExpr::CreateAnd(OpExpr, MaskExpr, Ctx);
}
-
+
// The MC library also has a right-shift operator, but it isn't consistently
// signed or unsigned between different targets.
case Instruction::Add:
case Instruction::And:
case Instruction::Or:
case Instruction::Xor: {
- const MCExpr *LHS = LowerConstant(CE->getOperand(0), AP);
- const MCExpr *RHS = LowerConstant(CE->getOperand(1), AP);
+ const MCExpr *LHS = lowerConstant(CE->getOperand(0), AP);
+ const MCExpr *RHS = lowerConstant(CE->getOperand(1), AP);
switch (CE->getOpcode()) {
default: llvm_unreachable("Unknown binary operator constant cast expr");
case Instruction::Add: return MCBinaryExpr::CreateAdd(LHS, RHS, Ctx);
}
}
-static void EmitGlobalConstantImpl(const Constant *C, unsigned AddrSpace,
+static void emitGlobalConstantImpl(const Constant *C, unsigned AddrSpace,
AsmPrinter &AP);
-static void EmitGlobalConstantArray(const ConstantArray *CA, unsigned AddrSpace,
- AsmPrinter &AP) {
- if (AddrSpace != 0 || !CA->isString()) {
- // Not a string. Print the values in successive locations
- for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i)
- EmitGlobalConstantImpl(CA->getOperand(i), AddrSpace, AP);
- return;
+/// isRepeatedByteSequence - Determine whether the given value is
+/// composed of a repeated sequence of identical bytes and return the
+/// byte value. If it is not a repeated sequence, return -1.
+static int isRepeatedByteSequence(const ConstantDataSequential *V) {
+ StringRef Data = V->getRawDataValues();
+ assert(!Data.empty() && "Empty aggregates should be CAZ node");
+ char C = Data[0];
+ for (unsigned i = 1, e = Data.size(); i != e; ++i)
+ if (Data[i] != C) return -1;
+ return static_cast<uint8_t>(C); // Ensure 255 is not returned as -1.
+}
+
+
+/// isRepeatedByteSequence - Determine whether the given value is
+/// composed of a repeated sequence of identical bytes and return the
+/// byte value. If it is not a repeated sequence, return -1.
+static int isRepeatedByteSequence(const Value *V, TargetMachine &TM) {
+
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(V)) {
+ if (CI->getBitWidth() > 64) return -1;
+
+ uint64_t Size = TM.getDataLayout()->getTypeAllocSize(V->getType());
+ uint64_t Value = CI->getZExtValue();
+
+ // Make sure the constant is at least 8 bits long and has a power
+ // of 2 bit width. This guarantees the constant bit width is
+ // always a multiple of 8 bits, avoiding issues with padding out
+ // to Size and other such corner cases.
+ if (CI->getBitWidth() < 8 || !isPowerOf2_64(CI->getBitWidth())) return -1;
+
+ uint8_t Byte = static_cast<uint8_t>(Value);
+
+ for (unsigned i = 1; i < Size; ++i) {
+ Value >>= 8;
+ if (static_cast<uint8_t>(Value) != Byte) return -1;
+ }
+ return Byte;
+ }
+ if (const ConstantArray *CA = dyn_cast<ConstantArray>(V)) {
+ // Make sure all array elements are sequences of the same repeated
+ // byte.
+ assert(CA->getNumOperands() != 0 && "Should be a CAZ");
+ int Byte = isRepeatedByteSequence(CA->getOperand(0), TM);
+ if (Byte == -1) return -1;
+
+ for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
+ int ThisByte = isRepeatedByteSequence(CA->getOperand(i), TM);
+ if (ThisByte == -1) return -1;
+ if (Byte != ThisByte) return -1;
+ }
+ return Byte;
}
- // Otherwise, it can be emitted as .ascii.
- SmallVector<char, 128> TmpVec;
- TmpVec.reserve(CA->getNumOperands());
- for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i)
- TmpVec.push_back(cast<ConstantInt>(CA->getOperand(i))->getZExtValue());
+ if (const ConstantDataSequential *CDS = dyn_cast<ConstantDataSequential>(V))
+ return isRepeatedByteSequence(CDS);
- AP.OutStreamer.EmitBytes(StringRef(TmpVec.data(), TmpVec.size()), AddrSpace);
+ return -1;
}
-static void EmitGlobalConstantVector(const ConstantVector *CV,
+static void emitGlobalConstantDataSequential(const ConstantDataSequential *CDS,
+ unsigned AddrSpace,AsmPrinter &AP){
+
+ // See if we can aggregate this into a .fill, if so, emit it as such.
+ int Value = isRepeatedByteSequence(CDS, AP.TM);
+ if (Value != -1) {
+ uint64_t Bytes = AP.TM.getDataLayout()->getTypeAllocSize(CDS->getType());
+ // Don't emit a 1-byte object as a .fill.
+ if (Bytes > 1)
+ return AP.OutStreamer.EmitFill(Bytes, Value, AddrSpace);
+ }
+
+ // If this can be emitted with .ascii/.asciz, emit it as such.
+ if (CDS->isString())
+ return AP.OutStreamer.EmitBytes(CDS->getAsString(), AddrSpace);
+
+ // Otherwise, emit the values in successive locations.
+ unsigned ElementByteSize = CDS->getElementByteSize();
+ if (isa<IntegerType>(CDS->getElementType())) {
+ for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) {
+ if (AP.isVerbose())
+ AP.OutStreamer.GetCommentOS() << format("0x%" PRIx64 "\n",
+ CDS->getElementAsInteger(i));
+ AP.OutStreamer.EmitIntValue(CDS->getElementAsInteger(i),
+ ElementByteSize, AddrSpace);
+ }
+ } else if (ElementByteSize == 4) {
+ // FP Constants are printed as integer constants to avoid losing
+ // precision.
+ assert(CDS->getElementType()->isFloatTy());
+ for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) {
+ union {
+ float F;
+ uint32_t I;
+ };
+
+ F = CDS->getElementAsFloat(i);
+ if (AP.isVerbose())
+ AP.OutStreamer.GetCommentOS() << "float " << F << '\n';
+ AP.OutStreamer.EmitIntValue(I, 4, AddrSpace);
+ }
+ } else {
+ assert(CDS->getElementType()->isDoubleTy());
+ for (unsigned i = 0, e = CDS->getNumElements(); i != e; ++i) {
+ union {
+ double F;
+ uint64_t I;
+ };
+
+ F = CDS->getElementAsDouble(i);
+ if (AP.isVerbose())
+ AP.OutStreamer.GetCommentOS() << "double " << F << '\n';
+ AP.OutStreamer.EmitIntValue(I, 8, AddrSpace);
+ }
+ }
+
+ const DataLayout &TD = *AP.TM.getDataLayout();
+ unsigned Size = TD.getTypeAllocSize(CDS->getType());
+ unsigned EmittedSize = TD.getTypeAllocSize(CDS->getType()->getElementType()) *
+ CDS->getNumElements();
+ if (unsigned Padding = Size - EmittedSize)
+ AP.OutStreamer.EmitZeros(Padding, AddrSpace);
+
+}
+
+static void emitGlobalConstantArray(const ConstantArray *CA, unsigned AddrSpace,
+ AsmPrinter &AP) {
+ // 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);
+
+ if (Value != -1) {
+ uint64_t Bytes = AP.TM.getDataLayout()->getTypeAllocSize(CA->getType());
+ AP.OutStreamer.EmitFill(Bytes, Value, AddrSpace);
+ }
+ else {
+ for (unsigned i = 0, e = CA->getNumOperands(); i != e; ++i)
+ emitGlobalConstantImpl(CA->getOperand(i), AddrSpace, AP);
+ }
+}
+
+static void emitGlobalConstantVector(const ConstantVector *CV,
unsigned AddrSpace, AsmPrinter &AP) {
for (unsigned i = 0, e = CV->getType()->getNumElements(); i != e; ++i)
- EmitGlobalConstantImpl(CV->getOperand(i), AddrSpace, AP);
+ emitGlobalConstantImpl(CV->getOperand(i), AddrSpace, AP);
+
+ const DataLayout &TD = *AP.TM.getDataLayout();
+ unsigned Size = TD.getTypeAllocSize(CV->getType());
+ unsigned EmittedSize = TD.getTypeAllocSize(CV->getType()->getElementType()) *
+ CV->getType()->getNumElements();
+ if (unsigned Padding = Size - EmittedSize)
+ AP.OutStreamer.EmitZeros(Padding, AddrSpace);
}
-static void EmitGlobalConstantStruct(const ConstantStruct *CS,
+static void emitGlobalConstantStruct(const ConstantStruct *CS,
unsigned AddrSpace, AsmPrinter &AP) {
// Print the fields in successive locations. Pad to align if needed!
- const TargetData *TD = AP.TM.getTargetData();
+ const DataLayout *TD = AP.TM.getDataLayout();
unsigned Size = TD->getTypeAllocSize(CS->getType());
const StructLayout *Layout = TD->getStructLayout(CS->getType());
uint64_t SizeSoFar = 0;
SizeSoFar += FieldSize + PadSize;
// Now print the actual field value.
- EmitGlobalConstantImpl(Field, AddrSpace, AP);
+ emitGlobalConstantImpl(Field, AddrSpace, 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
"Layout of constant struct may be incorrect!");
}
-static void EmitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace,
+static void emitGlobalConstantFP(const ConstantFP *CFP, unsigned AddrSpace,
AsmPrinter &AP) {
- // FP Constants are printed as integer constants to avoid losing
- // precision.
- if (CFP->getType()->isDoubleTy()) {
+ if (CFP->getType()->isHalfTy()) {
if (AP.isVerbose()) {
- double Val = CFP->getValueAPF().convertToDouble();
- AP.OutStreamer.GetCommentOS() << "double " << Val << '\n';
+ SmallString<10> Str;
+ CFP->getValueAPF().toString(Str);
+ AP.OutStreamer.GetCommentOS() << "half " << Str << '\n';
}
-
uint64_t Val = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
- AP.OutStreamer.EmitIntValue(Val, 8, AddrSpace);
+ AP.OutStreamer.EmitIntValue(Val, 2, AddrSpace);
return;
}
-
+
if (CFP->getType()->isFloatTy()) {
if (AP.isVerbose()) {
float Val = CFP->getValueAPF().convertToFloat();
- AP.OutStreamer.GetCommentOS() << "float " << Val << '\n';
+ uint64_t IntVal = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
+ AP.OutStreamer.GetCommentOS() << "float " << Val << '\n'
+ << " (" << format("0x%x", IntVal) << ")\n";
}
uint64_t Val = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
AP.OutStreamer.EmitIntValue(Val, 4, AddrSpace);
return;
}
-
+
+ // FP Constants are printed as integer constants to avoid losing
+ // precision.
+ if (CFP->getType()->isDoubleTy()) {
+ if (AP.isVerbose()) {
+ double Val = CFP->getValueAPF().convertToDouble();
+ uint64_t IntVal = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
+ AP.OutStreamer.GetCommentOS() << "double " << Val << '\n'
+ << " (" << format("0x%lx", IntVal) << ")\n";
+ }
+
+ uint64_t Val = CFP->getValueAPF().bitcastToAPInt().getZExtValue();
+ AP.OutStreamer.EmitIntValue(Val, 8, AddrSpace);
+ return;
+ }
+
if (CFP->getType()->isX86_FP80Ty()) {
// all long double variants are printed as hex
// API needed to prevent premature destruction
AP.OutStreamer.GetCommentOS() << "x86_fp80 ~= "
<< DoubleVal.convertToDouble() << '\n';
}
-
- if (AP.TM.getTargetData()->isBigEndian()) {
+
+ if (AP.TM.getDataLayout()->isBigEndian()) {
AP.OutStreamer.EmitIntValue(p[1], 2, AddrSpace);
AP.OutStreamer.EmitIntValue(p[0], 8, AddrSpace);
} else {
AP.OutStreamer.EmitIntValue(p[0], 8, AddrSpace);
AP.OutStreamer.EmitIntValue(p[1], 2, AddrSpace);
}
-
+
// Emit the tail padding for the long double.
- const TargetData &TD = *AP.TM.getTargetData();
+ const DataLayout &TD = *AP.TM.getDataLayout();
AP.OutStreamer.EmitZeros(TD.getTypeAllocSize(CFP->getType()) -
TD.getTypeStoreSize(CFP->getType()), AddrSpace);
return;
}
-
+
assert(CFP->getType()->isPPC_FP128Ty() &&
"Floating point constant type not handled");
// 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 (AP.TM.getTargetData()->isBigEndian()) {
+ if (AP.TM.getDataLayout()->isBigEndian()) {
AP.OutStreamer.EmitIntValue(p[0], 8, AddrSpace);
AP.OutStreamer.EmitIntValue(p[1], 8, AddrSpace);
} else {
}
}
-static void EmitGlobalConstantLargeInt(const ConstantInt *CI,
+static void emitGlobalConstantLargeInt(const ConstantInt *CI,
unsigned AddrSpace, AsmPrinter &AP) {
- const TargetData *TD = AP.TM.getTargetData();
+ const DataLayout *TD = AP.TM.getDataLayout();
unsigned BitWidth = CI->getBitWidth();
assert((BitWidth & 63) == 0 && "only support multiples of 64-bits");
}
}
-static void EmitGlobalConstantImpl(const Constant *CV, unsigned AddrSpace,
+static void emitGlobalConstantImpl(const Constant *CV, unsigned AddrSpace,
AsmPrinter &AP) {
- if (isa<ConstantAggregateZero>(CV) || isa<UndefValue>(CV)) {
- uint64_t Size = AP.TM.getTargetData()->getTypeAllocSize(CV->getType());
+ const DataLayout *TD = AP.TM.getDataLayout();
+ uint64_t Size = TD->getTypeAllocSize(CV->getType());
+ if (isa<ConstantAggregateZero>(CV) || isa<UndefValue>(CV))
return AP.OutStreamer.EmitZeros(Size, AddrSpace);
- }
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
- unsigned Size = AP.TM.getTargetData()->getTypeAllocSize(CV->getType());
switch (Size) {
case 1:
case 2:
case 4:
case 8:
if (AP.isVerbose())
- AP.OutStreamer.GetCommentOS() << format("0x%llx\n", CI->getZExtValue());
+ AP.OutStreamer.GetCommentOS() << format("0x%" PRIx64 "\n",
+ CI->getZExtValue());
AP.OutStreamer.EmitIntValue(CI->getZExtValue(), Size, AddrSpace);
return;
default:
- EmitGlobalConstantLargeInt(CI, AddrSpace, AP);
+ emitGlobalConstantLargeInt(CI, AddrSpace, AP);
return;
}
}
-
- if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV))
- return EmitGlobalConstantArray(CVA, AddrSpace, AP);
-
- if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV))
- return EmitGlobalConstantStruct(CVS, AddrSpace, AP);
if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV))
- return EmitGlobalConstantFP(CFP, AddrSpace, AP);
+ return emitGlobalConstantFP(CFP, AddrSpace, AP);
if (isa<ConstantPointerNull>(CV)) {
- unsigned Size = AP.TM.getTargetData()->getTypeAllocSize(CV->getType());
AP.OutStreamer.EmitIntValue(0, Size, AddrSpace);
return;
}
+
+ if (const ConstantDataSequential *CDS = dyn_cast<ConstantDataSequential>(CV))
+ return emitGlobalConstantDataSequential(CDS, AddrSpace, AP);
- if (const ConstantVector *V = dyn_cast<ConstantVector>(CV))
- return EmitGlobalConstantVector(V, AddrSpace, AP);
+ if (const ConstantArray *CVA = dyn_cast<ConstantArray>(CV))
+ return emitGlobalConstantArray(CVA, AddrSpace, AP);
+
+ if (const ConstantStruct *CVS = dyn_cast<ConstantStruct>(CV))
+ return emitGlobalConstantStruct(CVS, AddrSpace, AP);
+
+ if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
+ // Look through bitcasts, which might not be able to be MCExpr'ized (e.g. of
+ // vectors).
+ if (CE->getOpcode() == Instruction::BitCast)
+ return emitGlobalConstantImpl(CE->getOperand(0), AddrSpace, AP);
+
+ if (Size > 8) {
+ // 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);
+ if (New && New != CE)
+ return emitGlobalConstantImpl(New, AddrSpace, AP);
+ }
+ }
+ if (const ConstantVector *V = dyn_cast<ConstantVector>(CV))
+ return emitGlobalConstantVector(V, AddrSpace, AP);
+
// Otherwise, it must be a ConstantExpr. Lower it to an MCExpr, then emit it
// thread the streamer with EmitValue.
- AP.OutStreamer.EmitValue(LowerConstant(CV, AP),
- AP.TM.getTargetData()->getTypeAllocSize(CV->getType()),
- AddrSpace);
+ AP.OutStreamer.EmitValue(lowerConstant(CV, AP), Size, AddrSpace);
}
/// EmitGlobalConstant - Print a general LLVM constant to the .s file.
void AsmPrinter::EmitGlobalConstant(const Constant *CV, unsigned AddrSpace) {
- uint64_t Size = TM.getTargetData()->getTypeAllocSize(CV->getType());
+ uint64_t Size = TM.getDataLayout()->getTypeAllocSize(CV->getType());
if (Size)
- EmitGlobalConstantImpl(CV, AddrSpace, *this);
+ emitGlobalConstantImpl(CV, AddrSpace, *this);
else if (MAI->hasSubsectionsViaSymbols()) {
// If the global has zero size, emit a single byte so that two labels don't
// look like they are at the same location.
SmallString<60> NameStr;
Mang->getNameWithPrefix(NameStr, Sym);
return OutContext.GetOrCreateSymbol(NameStr.str());
-}
+}
}
}
-/// EmitBasicBlockLoopComments - Pretty-print comments for basic blocks.
-static void EmitBasicBlockLoopComments(const MachineBasicBlock &MBB,
+/// emitBasicBlockLoopComments - Pretty-print comments for basic blocks.
+static void emitBasicBlockLoopComments(const MachineBasicBlock &MBB,
const MachineLoopInfo *LI,
const AsmPrinter &AP) {
// Add loop depth information
const MachineLoop *Loop = LI->getLoopFor(&MBB);
if (Loop == 0) return;
-
+
MachineBasicBlock *Header = Loop->getHeader();
assert(Header && "No header for loop");
-
+
// If this block is not a loop header, just print out what is the loop header
// and return.
if (Header != &MBB) {
" Depth="+Twine(Loop->getLoopDepth()));
return;
}
-
+
// Otherwise, it is a loop header. Print out information about child and
// parent loops.
raw_ostream &OS = AP.OutStreamer.GetCommentOS();
-
- PrintParentLoopComment(OS, Loop->getParentLoop(), AP.getFunctionNumber());
-
+
+ PrintParentLoopComment(OS, Loop->getParentLoop(), AP.getFunctionNumber());
+
OS << "=>";
OS.indent(Loop->getLoopDepth()*2-2);
-
+
OS << "This ";
if (Loop->empty())
OS << "Inner ";
OS << "Loop Header: Depth=" + Twine(Loop->getLoopDepth()) << '\n';
-
+
PrintChildLoopComment(OS, Loop, AP.getFunctionNumber());
}
void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
// Emit an alignment directive for this block, if needed.
if (unsigned Align = MBB->getAlignment())
- EmitAlignment(Log2_32(Align));
+ EmitAlignment(Align);
// If the block has its address taken, emit any labels that were used to
// reference the block. It is possible that there is more than one label
const BasicBlock *BB = MBB->getBasicBlock();
if (isVerbose())
OutStreamer.AddComment("Block address taken");
-
+
std::vector<MCSymbol*> Syms = MMI->getAddrLabelSymbolToEmit(BB);
for (unsigned i = 0, e = Syms.size(); i != e; ++i)
OutStreamer.EmitLabel(Syms[i]);
}
+ // Print some verbose block comments.
+ if (isVerbose()) {
+ if (const BasicBlock *BB = MBB->getBasicBlock())
+ if (BB->hasName())
+ OutStreamer.AddComment("%" + BB->getName());
+ emitBasicBlockLoopComments(*MBB, LI, *this);
+ }
+
// Print the main label for the block.
if (MBB->pred_empty() || isBlockOnlyReachableByFallthrough(MBB)) {
if (isVerbose() && OutStreamer.hasRawTextSupport()) {
- if (const BasicBlock *BB = MBB->getBasicBlock())
- if (BB->hasName())
- OutStreamer.AddComment("%" + BB->getName());
-
- EmitBasicBlockLoopComments(*MBB, LI, *this);
-
// NOTE: Want this comment at start of line, don't emit with AddComment.
OutStreamer.EmitRawText(Twine(MAI->getCommentString()) + " BB#" +
Twine(MBB->getNumber()) + ":");
}
} else {
- if (isVerbose()) {
- if (const BasicBlock *BB = MBB->getBasicBlock())
- if (BB->hasName())
- OutStreamer.AddComment("%" + BB->getName());
- EmitBasicBlockLoopComments(*MBB, LI, *this);
- }
-
OutStreamer.EmitLabel(MBB->getSymbol());
}
}
void AsmPrinter::EmitVisibility(MCSymbol *Sym, unsigned Visibility,
bool IsDefinition) const {
MCSymbolAttr Attr = MCSA_Invalid;
-
+
switch (Visibility) {
default: break;
case GlobalValue::HiddenVisibility:
// then nothing falls through to it.
if (MBB->isLandingPad() || MBB->pred_empty())
return false;
-
+
// If there isn't exactly one predecessor, it can't be a fall through.
MachineBasicBlock::const_pred_iterator PI = MBB->pred_begin(), PI2 = PI;
++PI2;
if (PI2 != MBB->pred_end())
return false;
-
+
// The predecessor has to be immediately before this block.
- const MachineBasicBlock *Pred = *PI;
-
+ MachineBasicBlock *Pred = *PI;
+
if (!Pred->isLayoutSuccessor(MBB))
return false;
-
+
// If the block is completely empty, then it definitely does fall through.
if (Pred->empty())
return true;
-
- // Otherwise, check the last instruction.
- const MachineInstr &LastInst = Pred->back();
- return !LastInst.getDesc().isBarrier();
+
+ // Check the terminators in the previous blocks
+ for (MachineBasicBlock::iterator II = Pred->getFirstTerminator(),
+ IE = Pred->end(); II != IE; ++II) {
+ MachineInstr &MI = *II;
+
+ // If it is not a simple branch, we are in a table somewhere.
+ if (!MI.isBranch() || MI.isIndirectBranch())
+ return false;
+
+ // If we are the operands of one of the branches, this is not
+ // a fall through.
+ for (MachineInstr::mop_iterator OI = MI.operands_begin(),
+ OE = MI.operands_end(); OI != OE; ++OI) {
+ const MachineOperand& OP = *OI;
+ if (OP.isJTI())
+ return false;
+ if (OP.isMBB() && OP.getMBB() == MBB)
+ return false;
+ }
+ }
+
+ return true;
}
gcp_map_type::iterator GCPI = GCMap.find(S);
if (GCPI != GCMap.end())
return GCPI->second;
-
+
const char *Name = S->getName().c_str();
-
+
for (GCMetadataPrinterRegistry::iterator
I = GCMetadataPrinterRegistry::begin(),
E = GCMetadataPrinterRegistry::end(); I != E; ++I)
GCMap.insert(std::make_pair(S, GMP));
return GMP;
}
-
+
report_fatal_error("no GCMetadataPrinter registered for GC: " + Twine(Name));
- return 0;
}
-
projects / oota-llvm.git / blobdiff