//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "asmprinter"
#include "PPC.h"
#include "InstPrinter/PPCInstPrinter.h"
-#include "MCTargetDesc/PPCPredicates.h"
#include "MCTargetDesc/PPCMCExpr.h"
+#include "MCTargetDesc/PPCPredicates.h"
+#include "PPCMachineFunctionInfo.h"
#include "PPCSubtarget.h"
#include "PPCTargetMachine.h"
+#include "PPCTargetStreamer.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
-#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
+#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/StackMaps.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
-#include "llvm/DebugInfo.h"
#include "llvm/IR/Constants.h"
+#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Mangler.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/Target/TargetRegisterInfo.h"
using namespace llvm;
+#define DEBUG_TYPE "asmprinter"
+
namespace {
class PPCAsmPrinter : public AsmPrinter {
protected:
MapVector<MCSymbol*, MCSymbol*> TOC;
- const PPCSubtarget &Subtarget;
- uint64_t TOCLabelID;
+ const PPCSubtarget *Subtarget;
+ StackMaps SM;
public:
- explicit PPCAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
- : AsmPrinter(TM, Streamer),
- Subtarget(TM.getSubtarget<PPCSubtarget>()), TOCLabelID(0) {}
+ explicit PPCAsmPrinter(TargetMachine &TM,
+ std::unique_ptr<MCStreamer> Streamer)
+ : AsmPrinter(TM, std::move(Streamer)), SM(*this) {}
- virtual const char *getPassName() const {
+ const char *getPassName() const override {
return "PowerPC Assembly Printer";
}
MCSymbol *lookUpOrCreateTOCEntry(MCSymbol *Sym);
- virtual void EmitInstruction(const MachineInstr *MI);
+ void EmitInstruction(const MachineInstr *MI) override;
void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O);
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode,
- raw_ostream &O);
+ raw_ostream &O) override;
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode,
- raw_ostream &O);
+ raw_ostream &O) override;
+
+ void EmitEndOfAsmFile(Module &M) override;
+
+ void LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
+ const MachineInstr &MI);
+ void LowerPATCHPOINT(MCStreamer &OutStreamer, StackMaps &SM,
+ const MachineInstr &MI);
+ void EmitTlsCall(const MachineInstr *MI, MCSymbolRefExpr::VariantKind VK);
+ bool runOnMachineFunction(MachineFunction &MF) override {
+ Subtarget = &MF.getSubtarget<PPCSubtarget>();
+ return AsmPrinter::runOnMachineFunction(MF);
+ }
};
/// PPCLinuxAsmPrinter - PowerPC assembly printer, customized for Linux
class PPCLinuxAsmPrinter : public PPCAsmPrinter {
public:
- explicit PPCLinuxAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
- : PPCAsmPrinter(TM, Streamer) {}
+ explicit PPCLinuxAsmPrinter(TargetMachine &TM,
+ std::unique_ptr<MCStreamer> Streamer)
+ : PPCAsmPrinter(TM, std::move(Streamer)) {}
- virtual const char *getPassName() const {
+ const char *getPassName() const override {
return "Linux PPC Assembly Printer";
}
- bool doFinalization(Module &M);
+ bool doFinalization(Module &M) override;
+ void EmitStartOfAsmFile(Module &M) override;
- virtual void EmitFunctionEntryLabel();
+ void EmitFunctionEntryLabel() override;
- void EmitFunctionBodyEnd();
+ void EmitFunctionBodyStart() override;
+ void EmitFunctionBodyEnd() override;
};
/// PPCDarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac
/// OS X
class PPCDarwinAsmPrinter : public PPCAsmPrinter {
public:
- explicit PPCDarwinAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
- : PPCAsmPrinter(TM, Streamer) {}
+ explicit PPCDarwinAsmPrinter(TargetMachine &TM,
+ std::unique_ptr<MCStreamer> Streamer)
+ : PPCAsmPrinter(TM, std::move(Streamer)) {}
- virtual const char *getPassName() const {
+ const char *getPassName() const override {
return "Darwin PPC Assembly Printer";
}
- bool doFinalization(Module &M);
- void EmitStartOfAsmFile(Module &M);
+ bool doFinalization(Module &M) override;
+ void EmitStartOfAsmFile(Module &M) override;
void EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs);
};
switch (RegName[0]) {
case 'r':
case 'f':
- case 'v': return RegName + 1;
+ case 'q': // for QPX
+ case 'v':
+ if (RegName[1] == 's')
+ return RegName + 2;
+ return RegName + 1;
case 'c': if (RegName[1] == 'r') return RegName + 2;
}
void PPCAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
raw_ostream &O) {
+ const DataLayout *DL = TM.getDataLayout();
const MachineOperand &MO = MI->getOperand(OpNo);
switch (MO.getType()) {
const char *RegName = PPCInstPrinter::getRegisterName(MO.getReg());
// Linux assembler (Others?) does not take register mnemonics.
// FIXME - What about special registers used in mfspr/mtspr?
- if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
+ if (!Subtarget->isDarwin())
+ RegName = stripRegisterPrefix(RegName);
O << RegName;
return;
}
return;
case MachineOperand::MO_MachineBasicBlock:
- O << *MO.getMBB()->getSymbol();
- return;
- case MachineOperand::MO_JumpTableIndex:
- O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << MO.getIndex();
- // FIXME: PIC relocation model
+ MO.getMBB()->getSymbol()->print(O, MAI);
return;
case MachineOperand::MO_ConstantPoolIndex:
- O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
+ O << DL->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
<< '_' << MO.getIndex();
return;
case MachineOperand::MO_BlockAddress:
- O << *GetBlockAddressSymbol(MO.getBlockAddress());
- return;
- case MachineOperand::MO_ExternalSymbol: {
- // Computing the address of an external symbol, not calling it.
- if (TM.getRelocationModel() == Reloc::Static) {
- O << *GetExternalSymbolSymbol(MO.getSymbolName());
- return;
- }
-
- MCSymbol *NLPSym =
- OutContext.GetOrCreateSymbol(StringRef(MAI->getGlobalPrefix())+
- MO.getSymbolName()+"$non_lazy_ptr");
- MachineModuleInfoImpl::StubValueTy &StubSym =
- MMI->getObjFileInfo<MachineModuleInfoMachO>().getGVStubEntry(NLPSym);
- if (StubSym.getPointer() == 0)
- StubSym = MachineModuleInfoImpl::
- StubValueTy(GetExternalSymbolSymbol(MO.getSymbolName()), true);
-
- O << *NLPSym;
+ GetBlockAddressSymbol(MO.getBlockAddress())->print(O, MAI);
return;
- }
case MachineOperand::MO_GlobalAddress: {
// Computing the address of a global symbol, not calling it.
const GlobalValue *GV = MO.getGlobal();
// External or weakly linked global variables need non-lazily-resolved stubs
if (TM.getRelocationModel() != Reloc::Static &&
- (GV->isDeclaration() || GV->isWeakForLinker())) {
+ !GV->isStrongDefinitionForLinker()) {
if (!GV->hasHiddenVisibility()) {
- SymToPrint = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
+ SymToPrint = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
MachineModuleInfoImpl::StubValueTy &StubSym =
MMI->getObjFileInfo<MachineModuleInfoMachO>()
.getGVStubEntry(SymToPrint);
- if (StubSym.getPointer() == 0)
+ if (!StubSym.getPointer())
StubSym = MachineModuleInfoImpl::
- StubValueTy(Mang->getSymbol(GV), !GV->hasInternalLinkage());
+ StubValueTy(getSymbol(GV), !GV->hasInternalLinkage());
} else if (GV->isDeclaration() || GV->hasCommonLinkage() ||
GV->hasAvailableExternallyLinkage()) {
- SymToPrint = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
+ SymToPrint = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
MachineModuleInfoImpl::StubValueTy &StubSym =
MMI->getObjFileInfo<MachineModuleInfoMachO>().
getHiddenGVStubEntry(SymToPrint);
- if (StubSym.getPointer() == 0)
+ if (!StubSym.getPointer())
StubSym = MachineModuleInfoImpl::
- StubValueTy(Mang->getSymbol(GV), !GV->hasInternalLinkage());
+ StubValueTy(getSymbol(GV), !GV->hasInternalLinkage());
} else {
- SymToPrint = Mang->getSymbol(GV);
+ SymToPrint = getSymbol(GV);
}
} else {
- SymToPrint = Mang->getSymbol(GV);
+ SymToPrint = getSymbol(GV);
}
-
- O << *SymToPrint;
+
+ SymToPrint->print(O, MAI);
printOffset(MO.getOffset(), O);
return;
}
default:
- O << "<unknown operand type: " << MO.getType() << ">";
+ O << "<unknown operand type: " << (unsigned)MO.getType() << ">";
return;
}
}
case 'y': // A memory reference for an X-form instruction
{
const char *RegName = "r0";
- if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
+ if (!Subtarget->isDarwin())
+ RegName = stripRegisterPrefix(RegName);
O << RegName << ", ";
printOperand(MI, OpNo, O);
return false;
}
+ 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;
+ }
}
}
/// exists for it. If not, create one. Then return a symbol that references
/// the TOC entry.
MCSymbol *PPCAsmPrinter::lookUpOrCreateTOCEntry(MCSymbol *Sym) {
-
MCSymbol *&TOCEntry = TOC[Sym];
+ if (!TOCEntry)
+ TOCEntry = createTempSymbol("C");
+ return TOCEntry;
+}
+
+void PPCAsmPrinter::EmitEndOfAsmFile(Module &M) {
+ SM.serializeToStackMapSection();
+}
- // To avoid name clash check if the name already exists.
- while (TOCEntry == 0) {
- if (OutContext.LookupSymbol(Twine(MAI->getPrivateGlobalPrefix()) +
- "C" + Twine(TOCLabelID++)) == 0) {
- TOCEntry = GetTempSymbol("C", TOCLabelID);
+void PPCAsmPrinter::LowerSTACKMAP(MCStreamer &OutStreamer, StackMaps &SM,
+ const MachineInstr &MI) {
+ unsigned NumNOPBytes = MI.getOperand(1).getImm();
+
+ SM.recordStackMap(MI);
+ assert(NumNOPBytes % 4 == 0 && "Invalid number of NOP bytes requested!");
+
+ // Scan ahead to trim the shadow.
+ const MachineBasicBlock &MBB = *MI.getParent();
+ MachineBasicBlock::const_iterator MII(MI);
+ ++MII;
+ while (NumNOPBytes > 0) {
+ if (MII == MBB.end() || MII->isCall() ||
+ MII->getOpcode() == PPC::DBG_VALUE ||
+ MII->getOpcode() == TargetOpcode::PATCHPOINT ||
+ MII->getOpcode() == TargetOpcode::STACKMAP)
+ break;
+ ++MII;
+ NumNOPBytes -= 4;
+ }
+
+ // Emit nops.
+ for (unsigned i = 0; i < NumNOPBytes; i += 4)
+ 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) {
+ SM.recordPatchPoint(MI);
+ PatchPointOpers Opers(&MI);
+
+ unsigned EncodedBytes = 0;
+ const MachineOperand &CalleeMO =
+ Opers.getMetaOper(PatchPointOpers::TargetPos);
+
+ if (CalleeMO.isImm()) {
+ int64_t CallTarget = Opers.getMetaOper(PatchPointOpers::TargetPos).getImm();
+ if (CallTarget) {
+ assert((CallTarget & 0xFFFFFFFFFFFF) == CallTarget &&
+ "High 16 bits of call target should be zero.");
+ unsigned ScratchReg = MI.getOperand(Opers.getNextScratchIdx()).getReg();
+ EncodedBytes = 0;
+ // Materialize the jump address:
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LI8)
+ .addReg(ScratchReg)
+ .addImm((CallTarget >> 32) & 0xFFFF));
+ ++EncodedBytes;
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::RLDIC)
+ .addReg(ScratchReg)
+ .addReg(ScratchReg)
+ .addImm(32).addImm(16));
+ ++EncodedBytes;
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::ORIS8)
+ .addReg(ScratchReg)
+ .addReg(ScratchReg)
+ .addImm((CallTarget >> 16) & 0xFFFF));
+ ++EncodedBytes;
+ 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)
+ .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)
+ .addReg(PPC::X2)
+ .addImm(8)
+ .addReg(ScratchReg));
+ ++EncodedBytes;
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LD)
+ .addReg(ScratchReg)
+ .addImm(0)
+ .addReg(ScratchReg));
+ ++EncodedBytes;
+ }
+
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::MTCTR8)
+ .addReg(ScratchReg));
+ ++EncodedBytes;
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::BCTRL8));
+ ++EncodedBytes;
+
+ // Restore the TOC pointer after the call.
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::LD)
+ .addReg(PPC::X2)
+ .addImm(TOCSaveOffset)
+ .addReg(PPC::X1));
+ ++EncodedBytes;
}
+ } else if (CalleeMO.isGlobal()) {
+ const GlobalValue *GValue = CalleeMO.getGlobal();
+ MCSymbol *MOSymbol = getSymbol(GValue);
+ const MCExpr *SymVar = MCSymbolRefExpr::create(MOSymbol, OutContext);
+
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::BL8_NOP)
+ .addExpr(SymVar));
+ EncodedBytes += 2;
}
- return TOCEntry;
+ // Each instruction is 4 bytes.
+ EncodedBytes *= 4;
+
+ // Emit padding.
+ unsigned NumBytes = Opers.getMetaOper(PatchPointOpers::NBytesPos).getImm();
+ assert(NumBytes >= EncodedBytes &&
+ "Patchpoint can't request size less than the length of a call.");
+ assert((NumBytes - EncodedBytes) % 4 == 0 &&
+ "Invalid number of NOP bytes requested!");
+ for (unsigned i = EncodedBytes; i < NumBytes; i += 4)
+ EmitToStreamer(OutStreamer, MCInstBuilder(PPC::NOP));
}
+/// EmitTlsCall -- Given a GETtls[ld]ADDR[32] instruction, print a
+/// call to __tls_get_addr to the current output stream.
+void PPCAsmPrinter::EmitTlsCall(const MachineInstr *MI,
+ MCSymbolRefExpr::VariantKind VK) {
+ StringRef Name = "__tls_get_addr";
+ MCSymbol *TlsGetAddr = OutContext.getOrCreateSymbol(Name);
+ MCSymbolRefExpr::VariantKind Kind = MCSymbolRefExpr::VK_None;
+
+ assert(MI->getOperand(0).isReg() &&
+ ((Subtarget->isPPC64() && MI->getOperand(0).getReg() == PPC::X3) ||
+ (!Subtarget->isPPC64() && MI->getOperand(0).getReg() == PPC::R3)) &&
+ "GETtls[ld]ADDR[32] must define GPR3");
+ assert(MI->getOperand(1).isReg() &&
+ ((Subtarget->isPPC64() && MI->getOperand(1).getReg() == PPC::X3) ||
+ (!Subtarget->isPPC64() && MI->getOperand(1).getReg() == PPC::R3)) &&
+ "GETtls[ld]ADDR[32] must read GPR3");
+
+ if (!Subtarget->isPPC64() && !Subtarget->isDarwin() &&
+ TM.getRelocationModel() == Reloc::PIC_)
+ Kind = MCSymbolRefExpr::VK_PLT;
+ const MCSymbolRefExpr *TlsRef =
+ MCSymbolRefExpr::create(TlsGetAddr, Kind, OutContext);
+ const MachineOperand &MO = MI->getOperand(2);
+ const GlobalValue *GValue = MO.getGlobal();
+ MCSymbol *MOSymbol = getSymbol(GValue);
+ const MCExpr *SymVar = MCSymbolRefExpr::create(MOSymbol, VK, OutContext);
+ EmitToStreamer(*OutStreamer,
+ MCInstBuilder(Subtarget->isPPC64() ?
+ PPC::BL8_NOP_TLS : PPC::BL_TLS)
+ .addExpr(TlsRef)
+ .addExpr(SymVar));
+}
/// EmitInstruction -- Print out a single PowerPC MI in Darwin syntax to
/// the current output stream.
///
void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
MCInst TmpInst;
+ bool isPPC64 = Subtarget->isPPC64();
+ 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);
+ case TargetOpcode::PATCHPOINT:
+ return LowerPATCHPOINT(*OutStreamer, SM, *MI);
+
+ case PPC::MoveGOTtoLR: {
+ // Transform %LR = MoveGOTtoLR
+ // Into this: bl _GLOBAL_OFFSET_TABLE_@local-4
+ // _GLOBAL_OFFSET_TABLE_@local-4 (instruction preceding
+ // _GLOBAL_OFFSET_TABLE_) has exactly one instruction:
+ // blrl
+ // This will return the pointer to _GLOBAL_OFFSET_TABLE_@local
+ MCSymbol *GOTSymbol =
+ OutContext.getOrCreateSymbol(StringRef("_GLOBAL_OFFSET_TABLE_"));
+ const MCExpr *OffsExpr =
+ MCBinaryExpr::createSub(MCSymbolRefExpr::create(GOTSymbol,
+ MCSymbolRefExpr::VK_PPC_LOCAL,
+ OutContext),
+ MCConstantExpr::create(4, OutContext),
+ OutContext);
+
+ // Emit the 'bl'.
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BL).addExpr(OffsExpr));
+ return;
+ }
case PPC::MovePCtoLR:
case PPC::MovePCtoLR8: {
// Transform %LR = MovePCtoLR
MCSymbol *PICBase = MF->getPICBaseSymbol();
// Emit the 'bl'.
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BL)
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BL)
// FIXME: We would like an efficient form for this, so we don't have to do
// a lot of extra uniquing.
- .addExpr(MCSymbolRefExpr::Create(PICBase, OutContext)));
+ .addExpr(MCSymbolRefExpr::create(PICBase, OutContext)));
// Emit the label.
- OutStreamer.EmitLabel(PICBase);
+ OutStreamer->EmitLabel(PICBase);
+ return;
+ }
+ case PPC::UpdateGBR: {
+ // Transform %Rd = UpdateGBR(%Rt, %Ri)
+ // Into: lwz %Rt, .L0$poff - .L0$pb(%Ri)
+ // add %Rd, %Rt, %Ri
+ // Get the offset from the GOT Base Register to the GOT
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
+ MCSymbol *PICOffset =
+ MF->getInfo<PPCFunctionInfo>()->getPICOffsetSymbol();
+ TmpInst.setOpcode(PPC::LWZ);
+ const MCExpr *Exp =
+ MCSymbolRefExpr::create(PICOffset, MCSymbolRefExpr::VK_None, OutContext);
+ const MCExpr *PB =
+ MCSymbolRefExpr::create(MF->getPICBaseSymbol(),
+ MCSymbolRefExpr::VK_None,
+ OutContext);
+ const MCOperand TR = TmpInst.getOperand(1);
+ const MCOperand PICR = TmpInst.getOperand(0);
+
+ // Step 1: lwz %Rt, .L$poff - .L$pb(%Ri)
+ TmpInst.getOperand(1) =
+ MCOperand::createExpr(MCBinaryExpr::createSub(Exp, PB, OutContext));
+ TmpInst.getOperand(0) = TR;
+ TmpInst.getOperand(2) = PICR;
+ EmitToStreamer(*OutStreamer, TmpInst);
+
+ TmpInst.setOpcode(PPC::ADD4);
+ TmpInst.getOperand(0) = PICR;
+ TmpInst.getOperand(1) = TR;
+ TmpInst.getOperand(2) = PICR;
+ EmitToStreamer(*OutStreamer, TmpInst);
+ return;
+ }
+ case PPC::LWZtoc: {
+ // Transform %R3 = LWZtoc <ga:@min1>, %R2
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
+
+ // Change the opcode to LWZ, and the global address operand to be a
+ // reference to the GOT entry we will synthesize later.
+ TmpInst.setOpcode(PPC::LWZ);
+ const MachineOperand &MO = MI->getOperand(1);
+
+ // Map symbol -> label of TOC entry
+ assert(MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isBlockAddress());
+ MCSymbol *MOSymbol = nullptr;
+ if (MO.isGlobal())
+ MOSymbol = getSymbol(MO.getGlobal());
+ else if (MO.isCPI())
+ MOSymbol = GetCPISymbol(MO.getIndex());
+ else if (MO.isJTI())
+ MOSymbol = GetJTISymbol(MO.getIndex());
+ else if (MO.isBlockAddress())
+ MOSymbol = GetBlockAddressSymbol(MO.getBlockAddress());
+
+ if (PL == PICLevel::Small) {
+ const MCExpr *Exp =
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_GOT,
+ OutContext);
+ TmpInst.getOperand(1) = MCOperand::createExpr(Exp);
+ } else {
+ MCSymbol *TOCEntry = lookUpOrCreateTOCEntry(MOSymbol);
+
+ const MCExpr *Exp =
+ MCSymbolRefExpr::create(TOCEntry, MCSymbolRefExpr::VK_None,
+ OutContext);
+ const MCExpr *PB =
+ MCSymbolRefExpr::create(OutContext.getOrCreateSymbol(Twine(".LTOC")),
+ OutContext);
+ Exp = MCBinaryExpr::createSub(Exp, PB, OutContext);
+ TmpInst.getOperand(1) = MCOperand::createExpr(Exp);
+ }
+ EmitToStreamer(*OutStreamer, TmpInst);
return;
}
case PPC::LDtocJTI:
case PPC::LDtocCPT:
+ case PPC::LDtocBA:
case PPC::LDtoc: {
// Transform %X3 = LDtoc <ga:@min1>, %X2
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
// Change the opcode to LD, and the global address operand to be a
// reference to the TOC entry we will synthesize later.
const MachineOperand &MO = MI->getOperand(1);
// Map symbol -> label of TOC entry
- assert(MO.isGlobal() || MO.isCPI() || MO.isJTI());
- MCSymbol *MOSymbol = 0;
+ assert(MO.isGlobal() || MO.isCPI() || MO.isJTI() || MO.isBlockAddress());
+ MCSymbol *MOSymbol = nullptr;
if (MO.isGlobal())
- MOSymbol = Mang->getSymbol(MO.getGlobal());
+ MOSymbol = getSymbol(MO.getGlobal());
else if (MO.isCPI())
MOSymbol = GetCPISymbol(MO.getIndex());
else if (MO.isJTI())
MOSymbol = GetJTISymbol(MO.getIndex());
+ else if (MO.isBlockAddress())
+ MOSymbol = GetBlockAddressSymbol(MO.getBlockAddress());
MCSymbol *TOCEntry = lookUpOrCreateTOCEntry(MOSymbol);
const MCExpr *Exp =
- MCSymbolRefExpr::Create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC16,
+ MCSymbolRefExpr::create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC,
OutContext);
- TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
- OutStreamer.EmitInstruction(TmpInst);
+ TmpInst.getOperand(1) = MCOperand::createExpr(Exp);
+ EmitToStreamer(*OutStreamer, TmpInst);
return;
}
case PPC::ADDIStocHA: {
// Transform %Xd = ADDIStocHA %X2, <ga:@sym>
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
- // Change the opcode to ADDIS8. If the global address is external,
- // has common linkage, is a function address, or is a jump table
+ // Change the opcode to ADDIS8. If the global address is external, has
+ // common linkage, is a non-local function address, or is a jump table
// address, then generate a TOC entry and reference that. Otherwise
// reference the symbol directly.
TmpInst.setOpcode(PPC::ADDIS8);
const MachineOperand &MO = MI->getOperand(2);
- assert((MO.isGlobal() || MO.isCPI() || MO.isJTI()) &&
+ assert((MO.isGlobal() || MO.isCPI() || MO.isJTI() ||
+ MO.isBlockAddress()) &&
"Invalid operand for ADDIStocHA!");
- MCSymbol *MOSymbol = 0;
+ MCSymbol *MOSymbol = nullptr;
bool IsExternal = false;
- bool IsFunction = false;
+ bool IsNonLocalFunction = false;
bool IsCommon = false;
bool IsAvailExt = false;
if (MO.isGlobal()) {
- const GlobalValue *GValue = MO.getGlobal();
- const GlobalAlias *GAlias = dyn_cast<GlobalAlias>(GValue);
- const GlobalValue *RealGValue = GAlias ?
- GAlias->resolveAliasedGlobal(false) : GValue;
- MOSymbol = Mang->getSymbol(RealGValue);
- const GlobalVariable *GVar = dyn_cast<GlobalVariable>(RealGValue);
- IsExternal = GVar && !GVar->hasInitializer();
- IsCommon = GVar && RealGValue->hasCommonLinkage();
- IsFunction = !GVar;
- IsAvailExt = GVar && RealGValue->hasAvailableExternallyLinkage();
+ 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())
MOSymbol = GetCPISymbol(MO.getIndex());
else if (MO.isJTI())
MOSymbol = GetJTISymbol(MO.getIndex());
+ else if (MO.isBlockAddress())
+ MOSymbol = GetBlockAddressSymbol(MO.getBlockAddress());
- if (IsExternal || IsFunction || IsCommon || IsAvailExt || MO.isJTI())
+ if (IsExternal || IsNonLocalFunction || IsCommon || IsAvailExt ||
+ MO.isJTI() || MO.isBlockAddress() ||
+ TM.getCodeModel() == CodeModel::Large)
MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
const MCExpr *Exp =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_HA,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC_HA,
OutContext);
- TmpInst.getOperand(2) = MCOperand::CreateExpr(Exp);
- OutStreamer.EmitInstruction(TmpInst);
+ TmpInst.getOperand(2) = MCOperand::createExpr(Exp);
+ EmitToStreamer(*OutStreamer, TmpInst);
return;
}
case PPC::LDtocL: {
// Transform %Xd = LDtocL <ga:@sym>, %Xs
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
// Change the opcode to LD. If the global address is external, has
// common linkage, or is a jump table address, then reference the
// associated TOC entry. Otherwise reference the symbol directly.
TmpInst.setOpcode(PPC::LD);
const MachineOperand &MO = MI->getOperand(1);
- assert((MO.isGlobal() || MO.isJTI() || MO.isCPI()) &&
+ assert((MO.isGlobal() || MO.isCPI() || MO.isJTI() ||
+ MO.isBlockAddress()) &&
"Invalid operand for LDtocL!");
- MCSymbol *MOSymbol = 0;
+ MCSymbol *MOSymbol = nullptr;
if (MO.isJTI())
MOSymbol = lookUpOrCreateTOCEntry(GetJTISymbol(MO.getIndex()));
- else if (MO.isCPI())
+ else if (MO.isBlockAddress()) {
+ MOSymbol = GetBlockAddressSymbol(MO.getBlockAddress());
+ MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+ }
+ else if (MO.isCPI()) {
MOSymbol = GetCPISymbol(MO.getIndex());
+ if (TM.getCodeModel() == CodeModel::Large)
+ MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+ }
else if (MO.isGlobal()) {
const GlobalValue *GValue = MO.getGlobal();
- const GlobalAlias *GAlias = dyn_cast<GlobalAlias>(GValue);
- const GlobalValue *RealGValue = GAlias ?
- GAlias->resolveAliasedGlobal(false) : GValue;
- MOSymbol = Mang->getSymbol(RealGValue);
- const GlobalVariable *GVar = dyn_cast<GlobalVariable>(RealGValue);
-
- if (!GVar || !GVar->hasInitializer() || RealGValue->hasCommonLinkage() ||
- RealGValue->hasAvailableExternallyLinkage())
+ MOSymbol = getSymbol(GValue);
+ if (GValue->getType()->getElementType()->isFunctionTy() ||
+ GValue->isDeclaration() || GValue->hasCommonLinkage() ||
+ GValue->hasAvailableExternallyLinkage() ||
+ TM.getCodeModel() == CodeModel::Large)
MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
}
const MCExpr *Exp =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_LO,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC_LO,
OutContext);
- TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
- OutStreamer.EmitInstruction(TmpInst);
+ TmpInst.getOperand(1) = MCOperand::createExpr(Exp);
+ EmitToStreamer(*OutStreamer, TmpInst);
return;
}
case PPC::ADDItocL: {
// Transform %Xd = ADDItocL %Xs, <ga:@sym>
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
// Change the opcode to ADDI8. If the global address is external, then
// generate a TOC entry and reference that. Otherwise reference the
TmpInst.setOpcode(PPC::ADDI8);
const MachineOperand &MO = MI->getOperand(2);
assert((MO.isGlobal() || MO.isCPI()) && "Invalid operand for ADDItocL");
- MCSymbol *MOSymbol = 0;
+ MCSymbol *MOSymbol = nullptr;
bool IsExternal = false;
- bool IsFunction = false;
+ bool IsNonLocalFunction = false;
if (MO.isGlobal()) {
- const GlobalValue *GValue = MO.getGlobal();
- const GlobalAlias *GAlias = dyn_cast<GlobalAlias>(GValue);
- const GlobalValue *RealGValue = GAlias ?
- GAlias->resolveAliasedGlobal(false) : GValue;
- MOSymbol = Mang->getSymbol(RealGValue);
- const GlobalVariable *GVar = dyn_cast<GlobalVariable>(RealGValue);
- IsExternal = GVar && !GVar->hasInitializer();
- IsFunction = !GVar;
+ const GlobalValue *GV = MO.getGlobal();
+ MOSymbol = getSymbol(GV);
+ IsExternal = GV->isDeclaration();
+ IsNonLocalFunction = GV->getType()->getElementType()->isFunctionTy() &&
+ !GV->isStrongDefinitionForLinker();
} else if (MO.isCPI())
MOSymbol = GetCPISymbol(MO.getIndex());
- if (IsFunction || IsExternal)
+ if (IsNonLocalFunction || IsExternal ||
+ TM.getCodeModel() == CodeModel::Large)
MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
const MCExpr *Exp =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_LO,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC_LO,
OutContext);
- TmpInst.getOperand(2) = MCOperand::CreateExpr(Exp);
- OutStreamer.EmitInstruction(TmpInst);
+ TmpInst.getOperand(2) = MCOperand::createExpr(Exp);
+ EmitToStreamer(*OutStreamer, TmpInst);
return;
}
case PPC::ADDISgotTprelHA: {
// Transform: %Xd = ADDISgotTprelHA %X2, <ga:@sym>
// Into: %Xd = ADDIS8 %X2, sym@got@tlsgd@ha
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ assert(Subtarget->isPPC64() && "Not supported for 32-bit PowerPC");
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymGotTprel =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL16_HA,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL_HA,
OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(PPC::X2)
- .addExpr(SymGotTprel));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTprel));
return;
}
- case PPC::LDgotTprelL: {
+ case PPC::LDgotTprelL:
+ case PPC::LDgotTprelL32: {
// Transform %Xd = LDgotTprelL <ga:@sym>, %Xs
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
// Change the opcode to LD.
- TmpInst.setOpcode(PPC::LD);
+ TmpInst.setOpcode(isPPC64 ? PPC::LD : PPC::LWZ);
const MachineOperand &MO = MI->getOperand(1);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *Exp =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL16_LO,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL_LO,
+ OutContext);
+ TmpInst.getOperand(1) = MCOperand::createExpr(Exp);
+ EmitToStreamer(*OutStreamer, TmpInst);
+ return;
+ }
+
+ case PPC::PPC32PICGOT: {
+ MCSymbol *GOTSymbol = OutContext.getOrCreateSymbol(StringRef("_GLOBAL_OFFSET_TABLE_"));
+ MCSymbol *GOTRef = OutContext.createTempSymbol();
+ MCSymbol *NextInstr = OutContext.createTempSymbol();
+
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BL)
+ // FIXME: We would like an efficient form for this, so we don't have to do
+ // a lot of extra uniquing.
+ .addExpr(MCSymbolRefExpr::create(NextInstr, OutContext)));
+ const MCExpr *OffsExpr =
+ MCBinaryExpr::createSub(MCSymbolRefExpr::create(GOTSymbol, OutContext),
+ MCSymbolRefExpr::create(GOTRef, OutContext),
+ OutContext);
+ OutStreamer->EmitLabel(GOTRef);
+ OutStreamer->EmitValue(OffsExpr, 4);
+ OutStreamer->EmitLabel(NextInstr);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MFLR)
+ .addReg(MI->getOperand(0).getReg()));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LWZ)
+ .addReg(MI->getOperand(1).getReg())
+ .addImm(0)
+ .addReg(MI->getOperand(0).getReg()));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADD4)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addReg(MI->getOperand(0).getReg()));
+ return;
+ }
+ case PPC::PPC32GOT: {
+ MCSymbol *GOTSymbol = OutContext.getOrCreateSymbol(StringRef("_GLOBAL_OFFSET_TABLE_"));
+ const MCExpr *SymGotTlsL =
+ MCSymbolRefExpr::create(GOTSymbol, MCSymbolRefExpr::VK_PPC_LO,
OutContext);
- TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
- OutStreamer.EmitInstruction(TmpInst);
+ const MCExpr *SymGotTlsHA =
+ MCSymbolRefExpr::create(GOTSymbol, MCSymbolRefExpr::VK_PPC_HA,
+ OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LI)
+ .addReg(MI->getOperand(0).getReg())
+ .addExpr(SymGotTlsL));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(0).getReg())
+ .addExpr(SymGotTlsHA));
return;
}
case PPC::ADDIStlsgdHA: {
// Transform: %Xd = ADDIStlsgdHA %X2, <ga:@sym>
// Into: %Xd = ADDIS8 %X2, sym@got@tlsgd@ha
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ assert(Subtarget->isPPC64() && "Not supported for 32-bit PowerPC");
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymGotTlsGD =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSGD16_HA,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSGD_HA,
OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(PPC::X2)
- .addExpr(SymGotTlsGD));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsGD));
return;
}
- case PPC::ADDItlsgdL: {
+ case PPC::ADDItlsgdL:
// Transform: %Xd = ADDItlsgdL %Xs, <ga:@sym>
// Into: %Xd = ADDI8 %Xs, sym@got@tlsgd@l
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ case PPC::ADDItlsgdL32: {
+ // Transform: %Rd = ADDItlsgdL32 %Rs, <ga:@sym>
+ // Into: %Rd = ADDI %Rs, sym@got@tlsgd
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
- const MCExpr *SymGotTlsGD =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSGD16_LO,
- OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(MI->getOperand(1).getReg())
- .addExpr(SymGotTlsGD));
+ MCSymbol *MOSymbol = getSymbol(GValue);
+ const MCExpr *SymGotTlsGD = MCSymbolRefExpr::create(
+ MOSymbol, Subtarget->isPPC64() ? MCSymbolRefExpr::VK_PPC_GOT_TLSGD_LO
+ : MCSymbolRefExpr::VK_PPC_GOT_TLSGD,
+ OutContext);
+ EmitToStreamer(*OutStreamer,
+ MCInstBuilder(Subtarget->isPPC64() ? PPC::ADDI8 : PPC::ADDI)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsGD));
return;
}
- case PPC::GETtlsADDR: {
+ case PPC::GETtlsADDR:
// Transform: %X3 = GETtlsADDR %X3, <ga:@sym>
- // Into: BL8_NOP_TLSGD __tls_get_addr(sym@tlsgd)
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
-
- StringRef Name = "__tls_get_addr";
- MCSymbol *TlsGetAddr = OutContext.GetOrCreateSymbol(Name);
- const MCSymbolRefExpr *TlsRef =
- MCSymbolRefExpr::Create(TlsGetAddr, MCSymbolRefExpr::VK_None, OutContext);
- const MachineOperand &MO = MI->getOperand(2);
- const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
- const MCExpr *SymVar =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TLSGD,
- OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BL8_NOP_TLSGD)
- .addExpr(TlsRef)
- .addExpr(SymVar));
+ // Into: BL8_NOP_TLS __tls_get_addr(sym at tlsgd)
+ case PPC::GETtlsADDR32: {
+ // Transform: %R3 = GETtlsADDR32 %R3, <ga:@sym>
+ // Into: BL_TLS __tls_get_addr(sym at tlsgd)@PLT
+ EmitTlsCall(MI, MCSymbolRefExpr::VK_PPC_TLSGD);
return;
}
case PPC::ADDIStlsldHA: {
// Transform: %Xd = ADDIStlsldHA %X2, <ga:@sym>
// Into: %Xd = ADDIS8 %X2, sym@got@tlsld@ha
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ assert(Subtarget->isPPC64() && "Not supported for 32-bit PowerPC");
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymGotTlsLD =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSLD16_HA,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSLD_HA,
OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(PPC::X2)
- .addExpr(SymGotTlsLD));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsLD));
return;
}
- case PPC::ADDItlsldL: {
+ case PPC::ADDItlsldL:
// Transform: %Xd = ADDItlsldL %Xs, <ga:@sym>
// Into: %Xd = ADDI8 %Xs, sym@got@tlsld@l
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ case PPC::ADDItlsldL32: {
+ // Transform: %Rd = ADDItlsldL32 %Rs, <ga:@sym>
+ // Into: %Rd = ADDI %Rs, sym@got@tlsld
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
- const MCExpr *SymGotTlsLD =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSLD16_LO,
- OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(MI->getOperand(1).getReg())
- .addExpr(SymGotTlsLD));
+ MCSymbol *MOSymbol = getSymbol(GValue);
+ const MCExpr *SymGotTlsLD = MCSymbolRefExpr::create(
+ MOSymbol, Subtarget->isPPC64() ? MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO
+ : MCSymbolRefExpr::VK_PPC_GOT_TLSLD,
+ OutContext);
+ EmitToStreamer(*OutStreamer,
+ MCInstBuilder(Subtarget->isPPC64() ? PPC::ADDI8 : PPC::ADDI)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsLD));
return;
}
- case PPC::GETtlsldADDR: {
+ case PPC::GETtlsldADDR:
// Transform: %X3 = GETtlsldADDR %X3, <ga:@sym>
- // Into: BL8_NOP_TLSLD __tls_get_addr(sym@tlsld)
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
-
- StringRef Name = "__tls_get_addr";
- MCSymbol *TlsGetAddr = OutContext.GetOrCreateSymbol(Name);
- const MCSymbolRefExpr *TlsRef =
- MCSymbolRefExpr::Create(TlsGetAddr, MCSymbolRefExpr::VK_None, OutContext);
- const MachineOperand &MO = MI->getOperand(2);
- const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
- const MCExpr *SymVar =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TLSLD,
- OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BL8_NOP_TLSLD)
- .addExpr(TlsRef)
- .addExpr(SymVar));
+ // Into: BL8_NOP_TLS __tls_get_addr(sym at tlsld)
+ case PPC::GETtlsldADDR32: {
+ // Transform: %R3 = GETtlsldADDR32 %R3, <ga:@sym>
+ // Into: BL_TLS __tls_get_addr(sym at tlsld)@PLT
+ EmitTlsCall(MI, MCSymbolRefExpr::VK_PPC_TLSLD);
return;
}
- case PPC::ADDISdtprelHA: {
+ case PPC::ADDISdtprelHA:
// Transform: %Xd = ADDISdtprelHA %X3, <ga:@sym>
// Into: %Xd = ADDIS8 %X3, sym@dtprel@ha
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ case PPC::ADDISdtprelHA32: {
+ // Transform: %Rd = ADDISdtprelHA32 %R3, <ga:@sym>
+ // Into: %Rd = ADDIS %R3, sym@dtprel@ha
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymDtprel =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL16_HA,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL_HA,
OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(PPC::X3)
- .addExpr(SymDtprel));
+ EmitToStreamer(
+ *OutStreamer,
+ MCInstBuilder(Subtarget->isPPC64() ? PPC::ADDIS8 : PPC::ADDIS)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(Subtarget->isPPC64() ? PPC::X3 : PPC::R3)
+ .addExpr(SymDtprel));
return;
}
- case PPC::ADDIdtprelL: {
+ case PPC::ADDIdtprelL:
// Transform: %Xd = ADDIdtprelL %Xs, <ga:@sym>
// Into: %Xd = ADDI8 %Xs, sym@dtprel@l
- assert(Subtarget.isPPC64() && "Not supported for 32-bit PowerPC");
+ case PPC::ADDIdtprelL32: {
+ // Transform: %Rd = ADDIdtprelL32 %Rs, <ga:@sym>
+ // Into: %Rd = ADDI %Rs, sym@dtprel@l
const MachineOperand &MO = MI->getOperand(2);
const GlobalValue *GValue = MO.getGlobal();
- MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ MCSymbol *MOSymbol = getSymbol(GValue);
const MCExpr *SymDtprel =
- MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL16_LO,
+ MCSymbolRefExpr::create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL_LO,
OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8)
- .addReg(MI->getOperand(0).getReg())
- .addReg(MI->getOperand(1).getReg())
- .addExpr(SymDtprel));
+ EmitToStreamer(*OutStreamer,
+ MCInstBuilder(Subtarget->isPPC64() ? PPC::ADDI8 : PPC::ADDI)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymDtprel));
return;
}
- case PPC::MFCRpseud:
- case PPC::MFCR8pseud:
- // Transform: %R3 = MFCRpseud %CR7
- // Into: %R3 = MFCR ;; cr7
- OutStreamer.AddComment(PPCInstPrinter::
- getRegisterName(MI->getOperand(1).getReg()));
- OutStreamer.EmitInstruction(MCInstBuilder(Subtarget.isPPC64() ? PPC::MFCR8 : PPC::MFCR)
- .addReg(MI->getOperand(0).getReg()));
- return;
- case PPC::SYNC:
- // In Book E sync is called msync, handle this special case here...
- if (Subtarget.isBookE()) {
- OutStreamer.EmitRawText(StringRef("\tmsync"));
+ case PPC::MFOCRF:
+ case PPC::MFOCRF8:
+ if (!Subtarget->hasMFOCRF()) {
+ // Transform: %R3 = MFOCRF %CR7
+ // Into: %R3 = MFCR ;; cr7
+ unsigned NewOpcode =
+ MI->getOpcode() == PPC::MFOCRF ? PPC::MFCR : PPC::MFCR8;
+ OutStreamer->AddComment(PPCInstPrinter::
+ getRegisterName(MI->getOperand(1).getReg()));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(NewOpcode)
+ .addReg(MI->getOperand(0).getReg()));
return;
}
+ break;
+ case PPC::MTOCRF:
+ case PPC::MTOCRF8:
+ if (!Subtarget->hasMFOCRF()) {
+ // Transform: %CR7 = MTOCRF %R3
+ // Into: MTCRF mask, %R3 ;; cr7
+ unsigned NewOpcode =
+ MI->getOpcode() == PPC::MTOCRF ? PPC::MTCRF : PPC::MTCRF8;
+ unsigned Mask = 0x80 >> OutContext.getRegisterInfo()
+ ->getEncodingValue(MI->getOperand(0).getReg());
+ OutStreamer->AddComment(PPCInstPrinter::
+ getRegisterName(MI->getOperand(0).getReg()));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(NewOpcode)
+ .addImm(Mask)
+ .addReg(MI->getOperand(1).getReg()));
+ return;
+ }
+ break;
+ case PPC::LD:
+ case PPC::STD:
+ case PPC::LWA_32:
+ case PPC::LWA: {
+ // Verify alignment is legal, so we don't create relocations
+ // that can't be supported.
+ // FIXME: This test is currently disabled for Darwin. The test
+ // suite shows a handful of test cases that fail this check for
+ // Darwin. Those need to be investigated before this sanity test
+ // can be enabled for those subtargets.
+ if (!Subtarget->isDarwin()) {
+ unsigned OpNum = (MI->getOpcode() == PPC::STD) ? 2 : 1;
+ const MachineOperand &MO = MI->getOperand(OpNum);
+ if (MO.isGlobal() && MO.getGlobal()->getAlignment() < 4)
+ llvm_unreachable("Global must be word-aligned for LD, STD, LWA!");
+ }
+ // Now process the instruction normally.
+ break;
+ }
}
- LowerPPCMachineInstrToMCInst(MI, TmpInst, *this);
- OutStreamer.EmitInstruction(TmpInst);
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, isDarwin);
+ EmitToStreamer(*OutStreamer, TmpInst);
+}
+
+void PPCLinuxAsmPrinter::EmitStartOfAsmFile(Module &M) {
+ if (static_cast<const PPCTargetMachine &>(TM).isELFv2ABI()) {
+ PPCTargetStreamer *TS =
+ static_cast<PPCTargetStreamer *>(OutStreamer->getTargetStreamer());
+
+ if (TS)
+ TS->emitAbiVersion(2);
+ }
+
+ if (static_cast<const PPCTargetMachine &>(TM).isPPC64() ||
+ TM.getRelocationModel() != Reloc::PIC_)
+ return AsmPrinter::EmitStartOfAsmFile(M);
+
+ if (M.getPICLevel() == PICLevel::Small)
+ return AsmPrinter::EmitStartOfAsmFile(M);
+
+ OutStreamer->SwitchSection(OutContext.getELFSection(
+ ".got2", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC));
+
+ MCSymbol *TOCSym = OutContext.getOrCreateSymbol(Twine(".LTOC"));
+ MCSymbol *CurrentPos = OutContext.createTempSymbol();
+
+ OutStreamer->EmitLabel(CurrentPos);
+
+ // The GOT pointer points to the middle of the GOT, in order to reference the
+ // entire 64kB range. 0x8000 is the midpoint.
+ const MCExpr *tocExpr =
+ MCBinaryExpr::createAdd(MCSymbolRefExpr::create(CurrentPos, OutContext),
+ MCConstantExpr::create(0x8000, OutContext),
+ OutContext);
+
+ OutStreamer->EmitAssignment(TOCSym, tocExpr);
+
+ OutStreamer->SwitchSection(getObjFileLowering().getTextSection());
}
void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
- if (!Subtarget.isPPC64()) // linux/ppc32 - Normal entry label.
+ // linux/ppc32 - Normal entry label.
+ 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()) {
+ MCSymbol *RelocSymbol = PPCFI->getPICOffsetSymbol();
+ MCSymbol *PICBase = MF->getPICBaseSymbol();
+ OutStreamer->EmitLabel(RelocSymbol);
+
+ const MCExpr *OffsExpr =
+ MCBinaryExpr::createSub(
+ MCSymbolRefExpr::create(OutContext.getOrCreateSymbol(Twine(".LTOC")),
+ OutContext),
+ MCSymbolRefExpr::create(PICBase, OutContext),
+ OutContext);
+ OutStreamer->EmitValue(OffsExpr, 4);
+ OutStreamer->EmitLabel(CurrentFnSym);
+ return;
+ } else
+ return AsmPrinter::EmitFunctionEntryLabel();
+ }
+
+ // ELFv2 ABI - Normal entry label.
+ if (Subtarget->isELFv2ABI())
+ return AsmPrinter::EmitFunctionEntryLabel();
+
// Emit an official procedure descriptor.
- MCSectionSubPair Current = OutStreamer.getCurrentSection();
- const MCSectionELF *Section = OutStreamer.getContext().getELFSection(".opd",
- ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC,
- SectionKind::getReadOnly());
- OutStreamer.SwitchSection(Section);
- OutStreamer.EmitLabel(CurrentFnSym);
- OutStreamer.EmitValueToAlignment(8);
- MCSymbol *Symbol1 =
- OutContext.GetOrCreateSymbol(".L." + Twine(CurrentFnSym->getName()));
+ MCSectionSubPair Current = OutStreamer->getCurrentSection();
+ MCSectionELF *Section = OutStreamer->getContext().getELFSection(
+ ".opd", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);
+ OutStreamer->SwitchSection(Section);
+ OutStreamer->EmitLabel(CurrentFnSym);
+ OutStreamer->EmitValueToAlignment(8);
+ MCSymbol *Symbol1 = CurrentFnSymForSize;
// Generates a R_PPC64_ADDR64 (from FK_DATA_8) relocation for the function
// entry point.
- OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol1, OutContext),
- 8 /*size*/);
- MCSymbol *Symbol2 = OutContext.GetOrCreateSymbol(StringRef(".TOC."));
+ OutStreamer->EmitValue(MCSymbolRefExpr::create(Symbol1, OutContext),
+ 8 /*size*/);
+ MCSymbol *Symbol2 = OutContext.getOrCreateSymbol(StringRef(".TOC."));
// Generates a R_PPC64_TOC relocation for TOC base insertion.
- OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol2,
- MCSymbolRefExpr::VK_PPC_TOCBASE, OutContext),
- 8/*size*/);
+ OutStreamer->EmitValue(
+ MCSymbolRefExpr::create(Symbol2, MCSymbolRefExpr::VK_PPC_TOCBASE, OutContext),
+ 8/*size*/);
// Emit a null environment pointer.
- OutStreamer.EmitIntValue(0, 8 /* size */);
- OutStreamer.SwitchSection(Current.first, Current.second);
-
- MCSymbol *RealFnSym = OutContext.GetOrCreateSymbol(
- ".L." + Twine(CurrentFnSym->getName()));
- OutStreamer.EmitLabel(RealFnSym);
- CurrentFnSymForSize = RealFnSym;
+ OutStreamer->EmitIntValue(0, 8 /* size */);
+ OutStreamer->SwitchSection(Current.first, Current.second);
}
bool isPPC64 = TD->getPointerSizeInBits() == 64;
- if (isPPC64 && !TOC.empty()) {
- const MCSectionELF *Section = OutStreamer.getContext().getELFSection(".toc",
- ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC,
- SectionKind::getReadOnly());
- OutStreamer.SwitchSection(Section);
+ PPCTargetStreamer &TS =
+ static_cast<PPCTargetStreamer &>(*OutStreamer->getTargetStreamer());
+
+ if (!TOC.empty()) {
+ MCSectionELF *Section;
+
+ if (isPPC64)
+ Section = OutStreamer->getContext().getELFSection(
+ ".toc", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);
+ else
+ Section = OutStreamer->getContext().getELFSection(
+ ".got2", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);
+ OutStreamer->SwitchSection(Section);
for (MapVector<MCSymbol*, MCSymbol*>::iterator I = TOC.begin(),
E = TOC.end(); I != E; ++I) {
- OutStreamer.EmitLabel(I->second);
- MCSymbol *S = OutContext.GetOrCreateSymbol(I->first->getName());
- OutStreamer.EmitTCEntry(*S);
+ OutStreamer->EmitLabel(I->second);
+ MCSymbol *S = I->first;
+ if (isPPC64)
+ TS.emitTCEntry(*S);
+ else
+ OutStreamer->EmitSymbolValue(S, 4);
}
}
- MachineModuleInfoELF &MMIELF =
- MMI->getObjFileInfo<MachineModuleInfoELF>();
-
- MachineModuleInfoELF::SymbolListTy Stubs = MMIELF.GetGVStubList();
- if (!Stubs.empty()) {
- OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
- for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- // L_foo$stub:
- OutStreamer.EmitLabel(Stubs[i].first);
- // .long _foo
- OutStreamer.EmitValue(MCSymbolRefExpr::Create(Stubs[i].second.getPointer(),
- OutContext),
- isPPC64 ? 8 : 4/*size*/, 0/*addrspace*/);
- }
+ return AsmPrinter::doFinalization(M);
+}
- Stubs.clear();
- OutStreamer.AddBlankLine();
+/// EmitFunctionBodyStart - Emit a global entry point prefix for ELFv2.
+void PPCLinuxAsmPrinter::EmitFunctionBodyStart() {
+ // In the ELFv2 ABI, in functions that use the TOC register, we need to
+ // provide two entry points. The ABI guarantees that when calling the
+ // local entry point, r2 is set up by the caller to contain the TOC base
+ // for this function, and when calling the global entry point, r12 is set
+ // up by the caller to hold the address of the global entry point. We
+ // thus emit a prefix sequence along the following lines:
+ //
+ // func:
+ // # global entry point
+ // addis r2,r12,(.TOC.-func)@ha
+ // addi r2,r2,(.TOC.-func)@l
+ // .localentry func, .-func
+ // # local entry point, followed by function body
+ //
+ // This ensures we have r2 set up correctly while executing the function
+ // body, no matter which entry point is called.
+ if (Subtarget->isELFv2ABI()
+ // Only do all that if the function uses r2 in the first place.
+ && !MF->getRegInfo().use_empty(PPC::X2)) {
+
+ MCSymbol *GlobalEntryLabel = OutContext.createTempSymbol();
+ OutStreamer->EmitLabel(GlobalEntryLabel);
+ const MCSymbolRefExpr *GlobalEntryLabelExp =
+ MCSymbolRefExpr::create(GlobalEntryLabel, OutContext);
+
+ MCSymbol *TOCSymbol = OutContext.getOrCreateSymbol(StringRef(".TOC."));
+ const MCExpr *TOCDeltaExpr =
+ MCBinaryExpr::createSub(MCSymbolRefExpr::create(TOCSymbol, OutContext),
+ GlobalEntryLabelExp, OutContext);
+
+ const MCExpr *TOCDeltaHi =
+ PPCMCExpr::createHa(TOCDeltaExpr, false, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS)
+ .addReg(PPC::X2)
+ .addReg(PPC::X12)
+ .addExpr(TOCDeltaHi));
+
+ const MCExpr *TOCDeltaLo =
+ PPCMCExpr::createLo(TOCDeltaExpr, false, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDI)
+ .addReg(PPC::X2)
+ .addReg(PPC::X2)
+ .addExpr(TOCDeltaLo));
+
+ MCSymbol *LocalEntryLabel = OutContext.createTempSymbol();
+ OutStreamer->EmitLabel(LocalEntryLabel);
+ const MCSymbolRefExpr *LocalEntryLabelExp =
+ MCSymbolRefExpr::create(LocalEntryLabel, OutContext);
+ const MCExpr *LocalOffsetExp =
+ MCBinaryExpr::createSub(LocalEntryLabelExp,
+ GlobalEntryLabelExp, OutContext);
+
+ PPCTargetStreamer *TS =
+ static_cast<PPCTargetStreamer *>(OutStreamer->getTargetStreamer());
+
+ if (TS)
+ TS->emitLocalEntry(cast<MCSymbolELF>(CurrentFnSym), LocalOffsetExp);
}
-
- return AsmPrinter::doFinalization(M);
}
/// EmitFunctionBodyEnd - Print the traceback table before the .size
// FIXME: We should fill in the eight-byte mandatory fields as described in
// the PPC64 ELF ABI (this is a low-priority item because GDB does not
// currently make use of these fields).
- if (Subtarget.isPPC64()) {
- OutStreamer.EmitIntValue(0, 4/*size*/);
- OutStreamer.EmitIntValue(0, 8/*size*/);
+ if (Subtarget->isPPC64()) {
+ OutStreamer->EmitIntValue(0, 4/*size*/);
+ OutStreamer->EmitIntValue(0, 8/*size*/);
}
}
"power6",
"power6x",
"power7",
- "ppc64"
+ "ppc64",
+ "ppc64le"
};
- unsigned Directive = Subtarget.getDarwinDirective();
- if (Subtarget.hasMFOCRF() && Directive < PPC::DIR_970)
- Directive = PPC::DIR_970;
- if (Subtarget.hasAltivec() && Directive < PPC::DIR_7400)
- Directive = PPC::DIR_7400;
- if (Subtarget.isPPC64() && Directive < PPC::DIR_64)
- Directive = PPC::DIR_64;
- assert(Directive <= PPC::DIR_64 && "Directive out of range.");
-
- // FIXME: This is a total hack, finish mc'izing the PPC backend.
- if (OutStreamer.hasRawTextSupport()) {
- assert(Directive < sizeof(CPUDirectives) / sizeof(*CPUDirectives) &&
- "CPUDirectives[] might not be up-to-date!");
- OutStreamer.EmitRawText("\t.machine " + Twine(CPUDirectives[Directive]));
+ // Get the numerically largest directive.
+ // FIXME: How should we merge darwin directives?
+ unsigned Directive = PPC::DIR_NONE;
+ for (const Function &F : M) {
+ const PPCSubtarget &STI = TM.getSubtarget<PPCSubtarget>(F);
+ unsigned FDir = STI.getDarwinDirective();
+ Directive = Directive > FDir ? FDir : STI.getDarwinDirective();
+ if (STI.hasMFOCRF() && Directive < PPC::DIR_970)
+ Directive = PPC::DIR_970;
+ if (STI.hasAltivec() && Directive < PPC::DIR_7400)
+ Directive = PPC::DIR_7400;
+ if (STI.isPPC64() && Directive < PPC::DIR_64)
+ Directive = PPC::DIR_64;
}
+ assert(Directive <= PPC::DIR_64 && "Directive out of range.");
+
+ assert(Directive < array_lengthof(CPUDirectives) &&
+ "CPUDirectives[] might not be up-to-date!");
+ PPCTargetStreamer &TStreamer =
+ *static_cast<PPCTargetStreamer *>(OutStreamer->getTargetStreamer());
+ TStreamer.emitMachine(CPUDirectives[Directive]);
+
// Prime text sections so they are adjacent. This reduces the likelihood a
// large data or debug section causes a branch to exceed 16M limit.
const TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering());
- OutStreamer.SwitchSection(TLOFMacho.getTextCoalSection());
+ OutStreamer->SwitchSection(TLOFMacho.getTextCoalSection());
if (TM.getRelocationModel() == Reloc::PIC_) {
- OutStreamer.SwitchSection(
+ OutStreamer->SwitchSection(
OutContext.getMachOSection("__TEXT", "__picsymbolstub1",
- MCSectionMachO::S_SYMBOL_STUBS |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
+ MachO::S_SYMBOL_STUBS |
+ MachO::S_ATTR_PURE_INSTRUCTIONS,
32, SectionKind::getText()));
} else if (TM.getRelocationModel() == Reloc::DynamicNoPIC) {
- OutStreamer.SwitchSection(
+ OutStreamer->SwitchSection(
OutContext.getMachOSection("__TEXT","__symbol_stub1",
- MCSectionMachO::S_SYMBOL_STUBS |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
+ MachO::S_SYMBOL_STUBS |
+ MachO::S_ATTR_PURE_INSTRUCTIONS,
16, SectionKind::getText()));
}
- OutStreamer.SwitchSection(getObjFileLowering().getTextSection());
+ OutStreamer->SwitchSection(getObjFileLowering().getTextSection());
}
static MCSymbol *GetLazyPtr(MCSymbol *Sym, MCContext &Ctx) {
// Remove $stub suffix, add $lazy_ptr.
StringRef NoStub = Sym->getName().substr(0, Sym->getName().size()-5);
- return Ctx.GetOrCreateSymbol(NoStub + "$lazy_ptr");
+ return Ctx.getOrCreateSymbol(NoStub + "$lazy_ptr");
}
static MCSymbol *GetAnonSym(MCSymbol *Sym, MCContext &Ctx) {
// Add $tmp suffix to $stub, yielding $stub$tmp.
- return Ctx.GetOrCreateSymbol(Sym->getName() + "$tmp");
+ return Ctx.getOrCreateSymbol(Sym->getName() + "$tmp");
}
void PPCDarwinAsmPrinter::
EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits() == 64;
-
+
+ // Construct a local MCSubtargetInfo and shadow EmitToStreamer here.
+ // This is because the MachineFunction won't exist (but have not yet been
+ // freed) and since we're at the global level we can use the default
+ // constructed subtarget.
+ std::unique_ptr<MCSubtargetInfo> STI(TM.getTarget().createMCSubtargetInfo(
+ TM.getTargetTriple().str(), TM.getTargetCPU(),
+ TM.getTargetFeatureString()));
+ auto EmitToStreamer = [&STI] (MCStreamer &S, const MCInst &Inst) {
+ S.EmitInstruction(Inst, *STI);
+ };
+
const TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering());
// .lazy_symbol_pointer
- const MCSection *LSPSection = TLOFMacho.getLazySymbolPointerSection();
-
+ MCSection *LSPSection = TLOFMacho.getLazySymbolPointerSection();
+
// Output stubs for dynamically-linked functions
if (TM.getRelocationModel() == Reloc::PIC_) {
- const MCSection *StubSection =
- OutContext.getMachOSection("__TEXT", "__picsymbolstub1",
- MCSectionMachO::S_SYMBOL_STUBS |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 32, SectionKind::getText());
+ MCSection *StubSection = OutContext.getMachOSection(
+ "__TEXT", "__picsymbolstub1",
+ MachO::S_SYMBOL_STUBS | MachO::S_ATTR_PURE_INSTRUCTIONS, 32,
+ SectionKind::getText());
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
- OutStreamer.SwitchSection(StubSection);
+ OutStreamer->SwitchSection(StubSection);
EmitAlignment(4);
MCSymbol *Stub = Stubs[i].first;
MCSymbol *LazyPtr = GetLazyPtr(Stub, OutContext);
MCSymbol *AnonSymbol = GetAnonSym(Stub, OutContext);
- OutStreamer.EmitLabel(Stub);
- OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
+ OutStreamer->EmitLabel(Stub);
+ OutStreamer->EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
- const MCExpr *Anon = MCSymbolRefExpr::Create(AnonSymbol, OutContext);
- const MCExpr *LazyPtrExpr = MCSymbolRefExpr::Create(LazyPtr, OutContext);
+ const MCExpr *Anon = MCSymbolRefExpr::create(AnonSymbol, OutContext);
+ const MCExpr *LazyPtrExpr = MCSymbolRefExpr::create(LazyPtr, OutContext);
const MCExpr *Sub =
- MCBinaryExpr::CreateSub(LazyPtrExpr, Anon, OutContext);
+ MCBinaryExpr::createSub(LazyPtrExpr, Anon, OutContext);
// mflr r0
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R0));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MFLR).addReg(PPC::R0));
// bcl 20, 31, AnonSymbol
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCLalways).addExpr(Anon));
- OutStreamer.EmitLabel(AnonSymbol);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BCLalways).addExpr(Anon));
+ OutStreamer->EmitLabel(AnonSymbol);
// mflr r11
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R11));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MFLR).addReg(PPC::R11));
// addis r11, r11, ha16(LazyPtr - AnonSymbol)
- const MCExpr *SubHa16 = PPCMCExpr::CreateHa16(Sub, OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS)
+ const MCExpr *SubHa16 = PPCMCExpr::createHa(Sub, true, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::ADDIS)
.addReg(PPC::R11)
.addReg(PPC::R11)
.addExpr(SubHa16));
// mtlr r0
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::MTLR).addReg(PPC::R0));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MTLR).addReg(PPC::R0));
// ldu r12, lo16(LazyPtr - AnonSymbol)(r11)
// lwzu r12, lo16(LazyPtr - AnonSymbol)(r11)
- const MCExpr *SubLo16 = PPCMCExpr::CreateLo16(Sub, OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(isPPC64 ? PPC::LDU : PPC::LWZU)
+ const MCExpr *SubLo16 = PPCMCExpr::createLo(Sub, true, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(isPPC64 ? PPC::LDU : PPC::LWZU)
.addReg(PPC::R12)
.addExpr(SubLo16).addExpr(SubLo16)
.addReg(PPC::R11));
// mtctr r12
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::MTCTR).addReg(PPC::R12));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MTCTR).addReg(PPC::R12));
// bctr
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCTR));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BCTR));
- OutStreamer.SwitchSection(LSPSection);
- OutStreamer.EmitLabel(LazyPtr);
- OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
+ OutStreamer->SwitchSection(LSPSection);
+ OutStreamer->EmitLabel(LazyPtr);
+ OutStreamer->EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
MCSymbol *DyldStubBindingHelper =
- OutContext.GetOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
+ OutContext.getOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
if (isPPC64) {
// .quad dyld_stub_binding_helper
- OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 8);
+ OutStreamer->EmitSymbolValue(DyldStubBindingHelper, 8);
} else {
// .long dyld_stub_binding_helper
- OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 4);
+ OutStreamer->EmitSymbolValue(DyldStubBindingHelper, 4);
}
}
- OutStreamer.AddBlankLine();
+ OutStreamer->AddBlankLine();
return;
}
-
- const MCSection *StubSection =
- OutContext.getMachOSection("__TEXT","__symbol_stub1",
- MCSectionMachO::S_SYMBOL_STUBS |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 16, SectionKind::getText());
+
+ MCSection *StubSection = OutContext.getMachOSection(
+ "__TEXT", "__symbol_stub1",
+ MachO::S_SYMBOL_STUBS | MachO::S_ATTR_PURE_INSTRUCTIONS, 16,
+ SectionKind::getText());
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
MCSymbol *Stub = Stubs[i].first;
MCSymbol *RawSym = Stubs[i].second.getPointer();
MCSymbol *LazyPtr = GetLazyPtr(Stub, OutContext);
- const MCExpr *LazyPtrExpr = MCSymbolRefExpr::Create(LazyPtr, OutContext);
+ const MCExpr *LazyPtrExpr = MCSymbolRefExpr::create(LazyPtr, OutContext);
- OutStreamer.SwitchSection(StubSection);
+ OutStreamer->SwitchSection(StubSection);
EmitAlignment(4);
- OutStreamer.EmitLabel(Stub);
- OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
+ OutStreamer->EmitLabel(Stub);
+ OutStreamer->EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
// lis r11, ha16(LazyPtr)
- const MCExpr *LazyPtrHa16 = PPCMCExpr::CreateHa16(LazyPtrExpr, OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::LIS)
+ const MCExpr *LazyPtrHa16 =
+ PPCMCExpr::createHa(LazyPtrExpr, true, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::LIS)
.addReg(PPC::R11)
.addExpr(LazyPtrHa16));
// ldu r12, lo16(LazyPtr)(r11)
// lwzu r12, lo16(LazyPtr)(r11)
- const MCExpr *LazyPtrLo16 = PPCMCExpr::CreateLo16(LazyPtrExpr, OutContext);
- OutStreamer.EmitInstruction(MCInstBuilder(isPPC64 ? PPC::LDU : PPC::LWZU)
+ const MCExpr *LazyPtrLo16 =
+ PPCMCExpr::createLo(LazyPtrExpr, true, OutContext);
+ EmitToStreamer(*OutStreamer, MCInstBuilder(isPPC64 ? PPC::LDU : PPC::LWZU)
.addReg(PPC::R12)
.addExpr(LazyPtrLo16).addExpr(LazyPtrLo16)
.addReg(PPC::R11));
// mtctr r12
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::MTCTR).addReg(PPC::R12));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::MTCTR).addReg(PPC::R12));
// bctr
- OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCTR));
+ EmitToStreamer(*OutStreamer, MCInstBuilder(PPC::BCTR));
- OutStreamer.SwitchSection(LSPSection);
- OutStreamer.EmitLabel(LazyPtr);
- OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
+ OutStreamer->SwitchSection(LSPSection);
+ OutStreamer->EmitLabel(LazyPtr);
+ OutStreamer->EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
MCSymbol *DyldStubBindingHelper =
- OutContext.GetOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
+ OutContext.getOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
if (isPPC64) {
// .quad dyld_stub_binding_helper
- OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 8);
+ OutStreamer->EmitSymbolValue(DyldStubBindingHelper, 8);
} else {
// .long dyld_stub_binding_helper
- OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 4);
+ OutStreamer->EmitSymbolValue(DyldStubBindingHelper, 4);
}
}
- OutStreamer.AddBlankLine();
+ OutStreamer->AddBlankLine();
}
for (std::vector<const Function*>::const_iterator I = Personalities.begin(),
E = Personalities.end(); I != E; ++I) {
if (*I) {
- MCSymbol *NLPSym = GetSymbolWithGlobalValueBase(*I, "$non_lazy_ptr");
+ MCSymbol *NLPSym = getSymbolWithGlobalValueBase(*I, "$non_lazy_ptr");
MachineModuleInfoImpl::StubValueTy &StubSym =
MMIMacho.getGVStubEntry(NLPSym);
- StubSym = MachineModuleInfoImpl::StubValueTy(Mang->getSymbol(*I), true);
+ StubSym = MachineModuleInfoImpl::StubValueTy(getSymbol(*I), true);
}
}
}
// Output macho stubs for external and common global variables.
if (!Stubs.empty()) {
// Switch with ".non_lazy_symbol_pointer" directive.
- OutStreamer.SwitchSection(TLOFMacho.getNonLazySymbolPointerSection());
+ OutStreamer->SwitchSection(TLOFMacho.getNonLazySymbolPointerSection());
EmitAlignment(isPPC64 ? 3 : 2);
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
// L_foo$stub:
- OutStreamer.EmitLabel(Stubs[i].first);
+ OutStreamer->EmitLabel(Stubs[i].first);
// .indirect_symbol _foo
MachineModuleInfoImpl::StubValueTy &MCSym = Stubs[i].second;
- OutStreamer.EmitSymbolAttribute(MCSym.getPointer(), MCSA_IndirectSymbol);
+ OutStreamer->EmitSymbolAttribute(MCSym.getPointer(), MCSA_IndirectSymbol);
if (MCSym.getInt())
// External to current translation unit.
- OutStreamer.EmitIntValue(0, isPPC64 ? 8 : 4/*size*/);
+ OutStreamer->EmitIntValue(0, isPPC64 ? 8 : 4/*size*/);
else
// Internal to current translation unit.
//
// need to be indirect and pc-rel. We accomplish this by using NLPs.
// However, sometimes the types are local to the file. So we need to
// fill in the value for the NLP in those cases.
- OutStreamer.EmitValue(MCSymbolRefExpr::Create(MCSym.getPointer(),
- OutContext),
+ OutStreamer->EmitValue(MCSymbolRefExpr::create(MCSym.getPointer(),
+ OutContext),
isPPC64 ? 8 : 4/*size*/);
}
Stubs.clear();
- OutStreamer.AddBlankLine();
+ OutStreamer->AddBlankLine();
}
Stubs = MMIMacho.GetHiddenGVStubList();
if (!Stubs.empty()) {
- OutStreamer.SwitchSection(getObjFileLowering().getDataSection());
+ OutStreamer->SwitchSection(getObjFileLowering().getDataSection());
EmitAlignment(isPPC64 ? 3 : 2);
for (unsigned i = 0, e = Stubs.size(); i != e; ++i) {
// L_foo$stub:
- OutStreamer.EmitLabel(Stubs[i].first);
+ OutStreamer->EmitLabel(Stubs[i].first);
// .long _foo
- OutStreamer.EmitValue(MCSymbolRefExpr::
- Create(Stubs[i].second.getPointer(),
- OutContext),
- isPPC64 ? 8 : 4/*size*/);
+ OutStreamer->EmitValue(MCSymbolRefExpr::
+ create(Stubs[i].second.getPointer(),
+ OutContext),
+ isPPC64 ? 8 : 4/*size*/);
}
Stubs.clear();
- OutStreamer.AddBlankLine();
+ OutStreamer->AddBlankLine();
}
// Funny Darwin hack: This flag tells the linker that no global symbols
// implementation of multiple entry points). If this doesn't occur, the
// linker can safely perform dead code stripping. Since LLVM never generates
// code that does this, it is always safe to set.
- OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
+ OutStreamer->EmitAssemblerFlag(MCAF_SubsectionsViaSymbols);
return AsmPrinter::doFinalization(M);
}
/// for a MachineFunction to the given output stream, in a format that the
/// Darwin assembler can deal with.
///
-static AsmPrinter *createPPCAsmPrinterPass(TargetMachine &tm,
- MCStreamer &Streamer) {
- const PPCSubtarget *Subtarget = &tm.getSubtarget<PPCSubtarget>();
-
- if (Subtarget->isDarwin())
- return new PPCDarwinAsmPrinter(tm, Streamer);
- return new PPCLinuxAsmPrinter(tm, Streamer);
+static AsmPrinter *
+createPPCAsmPrinterPass(TargetMachine &tm,
+ std::unique_ptr<MCStreamer> &&Streamer) {
+ if (tm.getTargetTriple().isMacOSX())
+ return new PPCDarwinAsmPrinter(tm, std::move(Streamer));
+ return new PPCLinuxAsmPrinter(tm, std::move(Streamer));
}
// Force static initialization.
extern "C" void LLVMInitializePowerPCAsmPrinter() {
TargetRegistry::RegisterAsmPrinter(ThePPC32Target, createPPCAsmPrinterPass);
TargetRegistry::RegisterAsmPrinter(ThePPC64Target, createPPCAsmPrinterPass);
+ TargetRegistry::RegisterAsmPrinter(ThePPC64LETarget, createPPCAsmPrinterPass);
}
projects / oota-llvm.git / blobdiff