void EmitEndOfAsmFile(Module &M) override;
- void LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
- const MachineInstr &MI);
- void LowerPATCHPOINT(MCStreamer &OutStreamer, StackMaps &SM,
- const MachineInstr &MI);
+ void LowerSTACKMAP(StackMaps &SM, const MachineInstr &MI);
+ void LowerPATCHPOINT(StackMaps &SM, const MachineInstr &MI);
void EmitTlsCall(const MachineInstr *MI, MCSymbolRefExpr::VariantKind VK);
bool runOnMachineFunction(MachineFunction &MF) override {
Subtarget = &MF.getSubtarget<PPCSubtarget>();
return RegName + 1;
case 'c': if (RegName[1] == 'r') return RegName + 2;
}
-
+
return RegName;
}
raw_ostream &O) {
const DataLayout &DL = getDataLayout();
const MachineOperand &MO = MI->getOperand(OpNo);
-
+
switch (MO.getType()) {
case MachineOperand::MO_Register: {
const char *RegName = PPCInstPrinter::getRegisterName(MO.getReg());
}
case 'U': // Print 'u' for update form.
case 'X': // Print 'x' for indexed form.
- {
- // FIXME: Currently for PowerPC memory operands are always loaded
- // into a register, so we never get an update or indexed form.
- // This is bad even for offset forms, since even if we know we
- // have a value in -16(r1), we will generate a load into r<n>
- // and then load from 0(r<n>). Until that issue is fixed,
- // tolerate 'U' and 'X' but don't output anything.
- assert(MI->getOperand(OpNo).isReg());
- return false;
- }
+ {
+ // FIXME: Currently for PowerPC memory operands are always loaded
+ // into a register, so we never get an update or indexed form.
+ // This is bad even for offset forms, since even if we know we
+ // have a value in -16(r1), we will generate a load into r<n>
+ // and then load from 0(r<n>). Until that issue is fixed,
+ // tolerate 'U' and 'X' but don't output anything.
+ assert(MI->getOperand(OpNo).isReg());
+ return false;
+ }
}
}
return false;
}
-
/// lookUpOrCreateTOCEntry -- Given a symbol, look up whether a TOC entry
/// exists for it. If not, create one. Then return a symbol that references
/// the TOC entry.
SM.serializeToStackMapSection();
}
-void PPCAsmPrinter::LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
- const MachineInstr &MI) {
+void PPCAsmPrinter::LowerSTACKMAP(StackMaps &SM, const MachineInstr &MI) {
unsigned NumNOPBytes = MI.getOperand(1).getImm();
SM.recordStackMap(MI);
// Emit nops.
for (unsigned i = 0; i < NumNOPBytes; i += 4)
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::NOP));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::NOP));
}
// Lower a patchpoint of the form:
// [<def>], <id>, <numBytes>, <target>, <numArgs>
-void PPCAsmPrinter::LowerPATCHPOINT(MCStreamer &OutStreamer, StackMaps &SM,
- const MachineInstr &MI) {
+void PPCAsmPrinter::LowerPATCHPOINT(StackMaps &SM, const MachineInstr &MI) {
SM.recordPatchPoint(MI);
PatchPointOpers Opers(&MI);
unsigned ScratchReg = MI.getOperand(Opers.getNextScratchIdx()).getReg();
EncodedBytes = 0;
// Materialize the jump address:
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LI8)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LI8)
.addReg(ScratchReg)
.addImm((CallTarget >> 32) & 0xFFFF));
++EncodedBytes;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::RLDIC)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::RLDIC)
.addReg(ScratchReg)
.addReg(ScratchReg)
.addImm(32).addImm(16));
++EncodedBytes;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::ORIS8)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ORIS8)
.addReg(ScratchReg)
.addReg(ScratchReg)
.addImm((CallTarget >> 16) & 0xFFFF));
++EncodedBytes;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::ORI8)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ORI8)
.addReg(ScratchReg)
.addReg(ScratchReg)
.addImm(CallTarget & 0xFFFF));
// Save the current TOC pointer before the remote call.
int TOCSaveOffset = Subtarget->isELFv2ABI() ? 24 : 40;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::STD)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::STD)
.addReg(PPC::X2)
.addImm(TOCSaveOffset)
.addReg(PPC::X1));
++EncodedBytes;
-
// If we're on ELFv1, then we need to load the actual function pointer
// from the function descriptor.
if (!Subtarget->isELFv2ABI()) {
- // Load the new TOC pointer and the function address, but not r11
- // (needing this is rare, and loading it here would prevent passing it
- // via a 'nest' parameter.
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LD)
+ // Load the new TOC pointer and the function address, but not r11
+ // (needing this is rare, and loading it here would prevent passing it
+ // via a 'nest' parameter.
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LD)
.addReg(PPC::X2)
.addImm(8)
.addReg(ScratchReg));
++EncodedBytes;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LD)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LD)
.addReg(ScratchReg)
.addImm(0)
.addReg(ScratchReg));
++EncodedBytes;
}
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::MTCTR8)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MTCTR8)
.addReg(ScratchReg));
++EncodedBytes;
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::BCTRL8));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BCTRL8));
++EncodedBytes;
// Restore the TOC pointer after the call.
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LD)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LD)
.addReg(PPC::X2)
.addImm(TOCSaveOffset)
.addReg(PPC::X1));
MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymVar = MCSymbolRefExpr::create(MOSymbol, OutContext);
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::BL8_NOP)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BL8_NOP)
.addExpr(SymVar));
EncodedBytes += 2;
}
assert((NumBytes - EncodedBytes) % 4 == 0 &&
"Invalid number of NOP bytes requested!");
for (unsigned i = EncodedBytes; i < NumBytes; i += 4)
- EmitToStreamer(OutStreamer, MCInstBuilder(PPC::NOP));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::NOP));
}
/// EmitTlsCall -- Given a GETtls[ld]ADDR[32] instruction, print a
bool isDarwin = TM.getTargetTriple().isOSDarwin();
const Module *M = MF->getFunction()->getParent();
PICLevel::Level PL = M->getPICLevel();
-
+
// Lower multi-instruction pseudo operations.
switch (MI->getOpcode()) {
default: break;
case TargetOpcode::DBG_VALUE:
llvm_unreachable("Should be handled target independently");
case TargetOpcode::STACKMAP:
- return LowerSTACKMAP(*OutStreamer, SM, *MI);
+ return LowerSTACKMAP(SM, *MI);
case TargetOpcode::PATCHPOINT:
- return LowerPATCHPOINT(*OutStreamer, SM, *MI);
+ return LowerPATCHPOINT(SM, *MI);
case PPC::MoveGOTtoLR: {
// Transform %LR = MoveGOTtoLR
case PPC::MovePCtoLR:
case PPC::MovePCtoLR8: {
// Transform %LR = MovePCtoLR
- // Into this, where the label is the PIC base:
+ // Into this, where the label is the PIC base:
// bl L1$pb
// L1$pb:
MCSymbol *PICBase = MF->getPICBaseSymbol();
-
+
// Emit the 'bl'.
EmitToStreamer(*OutStreamer,
MCInstBuilder(PPC::BL)
EmitToStreamer(*OutStreamer, TmpInst);
return;
}
-
+
case PPC::ADDIStocHA: {
// Transform %Xd = ADDIStocHA %X2, <ga:@sym>
LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
MO.isBlockAddress()) &&
"Invalid operand for ADDIStocHA!");
MCSymbol *MOSymbol = nullptr;
- bool IsExternal = false;
- bool IsNonLocalFunction = false;
- bool IsCommon = false;
- bool IsAvailExt = false;
+ bool GlobalToc = false;
if (MO.isGlobal()) {
const GlobalValue *GV = MO.getGlobal();
MOSymbol = getSymbol(GV);
- IsExternal = GV->isDeclaration();
- IsCommon = GV->hasCommonLinkage();
- IsNonLocalFunction = GV->getType()->getElementType()->isFunctionTy() &&
- !GV->isStrongDefinitionForLinker();
- IsAvailExt = GV->hasAvailableExternallyLinkage();
- } else if (MO.isCPI())
+ unsigned char GVFlags = Subtarget->classifyGlobalReference(GV);
+ GlobalToc = (GVFlags & PPCII::MO_NLP_FLAG);
+ } else if (MO.isCPI()) {
MOSymbol = GetCPISymbol(MO.getIndex());
- else if (MO.isJTI())
+ } else if (MO.isJTI()) {
MOSymbol = GetJTISymbol(MO.getIndex());
- else if (MO.isBlockAddress())
+ } else if (MO.isBlockAddress()) {
MOSymbol = GetBlockAddressSymbol(MO.getBlockAddress());
+ }
- if (IsExternal || IsNonLocalFunction || IsCommon || IsAvailExt ||
- MO.isJTI() || MO.isBlockAddress() ||
+ if (GlobalToc || MO.isJTI() || MO.isBlockAddress() ||
TM.getCodeModel() == CodeModel::Large)
MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
}
else if (MO.isGlobal()) {
- const GlobalValue *GValue = MO.getGlobal();
- MOSymbol = getSymbol(GValue);
- if (GValue->getType()->getElementType()->isFunctionTy() ||
- GValue->isDeclaration() || GValue->hasCommonLinkage() ||
- GValue->hasAvailableExternallyLinkage() ||
- TM.getCodeModel() == CodeModel::Large)
- MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+ const GlobalValue *GV = MO.getGlobal();
+ MOSymbol = getSymbol(GV);
+ DEBUG(
+ unsigned char GVFlags = Subtarget->classifyGlobalReference(GV);
+ assert((GVFlags & PPCII::MO_NLP_FLAG) &&
+ "LDtocL used on symbol that could be accessed directly is "
+ "invalid. Must match ADDIStocHA."));
+ MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
}
const MCExpr *Exp =
const MachineOperand &MO = MI->getOperand(2);
assert((MO.isGlobal() || MO.isCPI()) && "Invalid operand for ADDItocL");
MCSymbol *MOSymbol = nullptr;
- bool IsExternal = false;
- bool IsNonLocalFunction = false;
if (MO.isGlobal()) {
const GlobalValue *GV = MO.getGlobal();
+ DEBUG(
+ unsigned char GVFlags = Subtarget->classifyGlobalReference(GV);
+ assert (
+ !(GVFlags & PPCII::MO_NLP_FLAG) &&
+ "Interposable definitions must use indirect access."));
MOSymbol = getSymbol(GV);
- IsExternal = GV->isDeclaration();
- IsNonLocalFunction = GV->getType()->getElementType()->isFunctionTy() &&
- !GV->isStrongDefinitionForLinker();
- } else if (MO.isCPI())
+ } else if (MO.isCPI()) {
MOSymbol = GetCPISymbol(MO.getIndex());
-
- if (IsNonLocalFunction || IsExternal ||
- TM.getCodeModel() == CodeModel::Large)
- MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+ }
const MCExpr *Exp =
MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC_LO,
void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
// linux/ppc32 - Normal entry label.
- if (!Subtarget->isPPC64() &&
- (TM.getRelocationModel() != Reloc::PIC_ ||
+ if (!Subtarget->isPPC64() &&
+ (TM.getRelocationModel() != Reloc::PIC_ ||
MF->getFunction()->getParent()->getPICLevel() == PICLevel::Small))
return AsmPrinter::EmitFunctionEntryLabel();
if (!Subtarget->isPPC64()) {
const PPCFunctionInfo *PPCFI = MF->getInfo<PPCFunctionInfo>();
- if (PPCFI->usesPICBase()) {
+ if (PPCFI->usesPICBase()) {
MCSymbol *RelocSymbol = PPCFI->getPICOffsetSymbol();
MCSymbol *PICBase = MF->getPICBaseSymbol();
OutStreamer->EmitLabel(RelocSymbol);
OutStreamer->SwitchSection(Current.first, Current.second);
}
-
bool PPCLinuxAsmPrinter::doFinalization(Module &M) {
const DataLayout &DL = getDataLayout();
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
OutStreamer->SwitchSection(StubSection);
EmitAlignment(4);
-
+
MCSymbol *Stub = Stubs[i].first;
MCSymbol *RawSym = Stubs[i].second.getPointer();
MCSymbol *LazyPtr = GetLazyPtr(Stub, OutContext);
MCSymbol *AnonSymbol = GetAnonSym(Stub, OutContext);
-
+
OutStreamer->EmitLabel(Stub);
OutStreamer->EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
OutStreamer->EmitSymbolValue(DyldStubBindingHelper, 4);
}
}
-
+
OutStreamer->AddBlankLine();
}
-
bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
bool isPPC64 = getDataLayout().getPointerSizeInBits() == 64;
// Output stubs for dynamically-linked functions.
Stubs = MMIMacho.GetGVStubList();
-
+
// Output macho stubs for external and common global variables.
if (!Stubs.empty()) {
// Switch with ".non_lazy_symbol_pointer" directive.
OutStreamer->SwitchSection(TLOFMacho.getNonLazySymbolPointerSection());
EmitAlignment(isPPC64 ? 3 : 2);
-
+
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
// L_foo$stub:
OutStreamer->EmitLabel(Stubs[i].first);
if (!Stubs.empty()) {
OutStreamer->SwitchSection(getObjFileLowering().getDataSection());
EmitAlignment(isPPC64 ? 3 : 2);
-
+
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
// L_foo$stub:
OutStreamer->EmitLabel(Stubs[i].first);
}
// Force static initialization.
-extern "C" void LLVMInitializePowerPCAsmPrinter() {
+extern "C" void LLVMInitializePowerPCAsmPrinter() {
TargetRegistry::RegisterAsmPrinter(ThePPC32Target, createPPCAsmPrinterPass);
TargetRegistry::RegisterAsmPrinter(ThePPC64Target, createPPCAsmPrinterPass);
TargetRegistry::RegisterAsmPrinter(ThePPC64LETarget, createPPCAsmPrinterPass);
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