-//===-- PPCMCTargetDesc.cpp - PowerPC Target Descriptions -------*- C++ -*-===//
+//===-- PPCMCTargetDesc.cpp - PowerPC Target Descriptions -----------------===//
//
// The LLVM Compiler Infrastructure
//
//===----------------------------------------------------------------------===//
#include "PPCMCTargetDesc.h"
-#include "PPCMCAsmInfo.h"
#include "InstPrinter/PPCInstPrinter.h"
-#include "llvm/MC/MachineLocation.h"
+#include "PPCMCAsmInfo.h"
+#include "PPCTargetStreamer.h"
+#include "llvm/MC/MCCodeGenInfo.h"
+#include "llvm/MC/MCELF.h"
+#include "llvm/MC/MCELFStreamer.h"
+#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
-#include "llvm/Target/TargetRegistry.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MachineLocation.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/TargetRegistry.h"
+
+using namespace llvm;
#define GET_INSTRINFO_MC_DESC
#include "PPCGenInstrInfo.inc"
#define GET_REGINFO_MC_DESC
#include "PPCGenRegisterInfo.inc"
-using namespace llvm;
+// Pin the vtable to this file.
+PPCTargetStreamer::~PPCTargetStreamer() {}
+PPCTargetStreamer::PPCTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
static MCInstrInfo *createPPCMCInstrInfo() {
MCInstrInfo *X = new MCInstrInfo();
static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
Triple TheTriple(TT);
- bool isPPC64 = (TheTriple.getArch() == Triple::ppc64);
+ bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
+ TheTriple.getArch() == Triple::ppc64le);
unsigned Flavour = isPPC64 ? 0 : 1;
unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
return X;
}
-static MCAsmInfo *createPPCMCAsmInfo(const Target &T, StringRef TT) {
+static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
Triple TheTriple(TT);
- bool isPPC64 = TheTriple.getArch() == Triple::ppc64;
+ bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
+ TheTriple.getArch() == Triple::ppc64le);
MCAsmInfo *MAI;
if (TheTriple.isOSDarwin())
- MAI = new PPCMCAsmInfoDarwin(isPPC64);
+ MAI = new PPCMCAsmInfoDarwin(isPPC64, TheTriple);
else
- MAI = new PPCLinuxMCAsmInfo(isPPC64);
+ MAI = new PPCELFMCAsmInfo(isPPC64, TheTriple);
// Initial state of the frame pointer is R1.
- MachineLocation Dst(MachineLocation::VirtualFP);
- MachineLocation Src(PPC::R1, 0);
- MAI->addInitialFrameState(0, Dst, Src);
+ unsigned Reg = isPPC64 ? PPC::X1 : PPC::R1;
+ MCCFIInstruction Inst =
+ MCCFIInstruction::createDefCfa(nullptr, MRI.getDwarfRegNum(Reg, true), 0);
+ MAI->addInitialFrameState(Inst);
return MAI;
}
static MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM,
- CodeModel::Model CM) {
+ CodeModel::Model CM,
+ CodeGenOpt::Level OL) {
MCCodeGenInfo *X = new MCCodeGenInfo();
if (RM == Reloc::Default) {
else
RM = Reloc::Static;
}
- X->InitMCCodeGenInfo(RM, CM);
+ if (CM == CodeModel::Default) {
+ Triple T(TT);
+ if (!T.isOSDarwin() &&
+ (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le))
+ CM = CodeModel::Medium;
+ }
+ X->InitMCCodeGenInfo(RM, CM, OL);
return X;
}
+namespace {
+class PPCTargetAsmStreamer : public PPCTargetStreamer {
+ formatted_raw_ostream &OS;
+
+public:
+ PPCTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS)
+ : PPCTargetStreamer(S), OS(OS) {}
+ void emitTCEntry(const MCSymbol &S) override {
+ OS << "\t.tc ";
+ OS << S.getName();
+ OS << "[TC],";
+ OS << S.getName();
+ OS << '\n';
+ }
+ void emitMachine(StringRef CPU) override {
+ OS << "\t.machine " << CPU << '\n';
+ }
+ void emitAbiVersion(int AbiVersion) override {
+ OS << "\t.abiversion " << AbiVersion << '\n';
+ }
+ void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ OS << "\t.localentry\t" << *S << ", " << *LocalOffset << '\n';
+ }
+};
+
+class PPCTargetELFStreamer : public PPCTargetStreamer {
+public:
+ PPCTargetELFStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
+ MCELFStreamer &getStreamer() {
+ return static_cast<MCELFStreamer &>(Streamer);
+ }
+ void emitTCEntry(const MCSymbol &S) override {
+ // Creates a R_PPC64_TOC relocation
+ Streamer.EmitSymbolValue(&S, 8);
+ }
+ void emitMachine(StringRef CPU) override {
+ // FIXME: Is there anything to do in here or does this directive only
+ // limit the parser?
+ }
+ void emitAbiVersion(int AbiVersion) override {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ Flags &= ~ELF::EF_PPC64_ABI;
+ Flags |= (AbiVersion & ELF::EF_PPC64_ABI);
+ MCA.setELFHeaderEFlags(Flags);
+ }
+ void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ MCSymbolData &Data = getStreamer().getOrCreateSymbolData(S);
+
+ int64_t Res;
+ if (!LocalOffset->EvaluateAsAbsolute(Res, MCA))
+ report_fatal_error(".localentry expression must be absolute.");
+
+ unsigned Encoded = ELF::encodePPC64LocalEntryOffset(Res);
+ if (Res != ELF::decodePPC64LocalEntryOffset(Encoded))
+ report_fatal_error(".localentry expression cannot be encoded.");
+
+ // The "other" values are stored in the last 6 bits of the second byte.
+ // The traditional defines for STO values assume the full byte and thus
+ // the shift to pack it.
+ unsigned Other = MCELF::getOther(Data) << 2;
+ Other &= ~ELF::STO_PPC64_LOCAL_MASK;
+ Other |= Encoded;
+ MCELF::setOther(Data, Other >> 2);
+
+ // For GAS compatibility, unless we already saw a .abiversion directive,
+ // set e_flags to indicate ELFv2 ABI.
+ unsigned Flags = MCA.getELFHeaderEFlags();
+ if ((Flags & ELF::EF_PPC64_ABI) == 0)
+ MCA.setELFHeaderEFlags(Flags | 2);
+ }
+};
+
+class PPCTargetMachOStreamer : public PPCTargetStreamer {
+public:
+ PPCTargetMachOStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
+ void emitTCEntry(const MCSymbol &S) override {
+ llvm_unreachable("Unknown pseudo-op: .tc");
+ }
+ void emitMachine(StringRef CPU) override {
+ // FIXME: We should update the CPUType, CPUSubType in the Object file if
+ // the new values are different from the defaults.
+ }
+ void emitAbiVersion(int AbiVersion) override {
+ llvm_unreachable("Unknown pseudo-op: .abiversion");
+ }
+ void emitLocalEntry(MCSymbol *S, const MCExpr *LocalOffset) override {
+ llvm_unreachable("Unknown pseudo-op: .localentry");
+ }
+};
+}
+
// This is duplicated code. Refactor this.
-static MCStreamer *createMCStreamer(const Target &T, const std::string &TT,
- MCContext &Ctx, TargetAsmBackend &TAB,
- raw_ostream &OS,
- MCCodeEmitter *Emitter,
- bool RelaxAll,
- bool NoExecStack) {
- if (Triple(TT).isOSDarwin())
- return createMachOStreamer(Ctx, TAB, OS, Emitter, RelaxAll);
-
- return NULL;
+static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
+ MCContext &Ctx, MCAsmBackend &MAB,
+ raw_ostream &OS, MCCodeEmitter *Emitter,
+ const MCSubtargetInfo &STI, bool RelaxAll) {
+ if (Triple(TT).isOSDarwin()) {
+ MCStreamer *S = createMachOStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
+ new PPCTargetMachOStreamer(*S);
+ return S;
+ }
+
+ MCStreamer *S = createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
+ new PPCTargetELFStreamer(*S);
+ return S;
+}
+
+static MCStreamer *
+createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useDwarfDirectory,
+ MCInstPrinter *InstPrint, MCCodeEmitter *CE,
+ MCAsmBackend *TAB, bool ShowInst) {
+
+ MCStreamer *S = llvm::createAsmStreamer(
+ Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
+ new PPCTargetAsmStreamer(*S, OS);
+ return S;
}
static MCInstPrinter *createPPCMCInstPrinter(const Target &T,
unsigned SyntaxVariant,
- const MCAsmInfo &MAI) {
- return new PPCInstPrinter(MAI, SyntaxVariant);
+ const MCAsmInfo &MAI,
+ const MCInstrInfo &MII,
+ const MCRegisterInfo &MRI,
+ const MCSubtargetInfo &STI) {
+ bool isDarwin = Triple(STI.getTargetTriple()).isOSDarwin();
+ return new PPCInstPrinter(MAI, MII, MRI, isDarwin);
}
extern "C" void LLVMInitializePowerPCTargetMC() {
// Register the MC asm info.
RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
+ RegisterMCAsmInfoFn E(ThePPC64LETarget, createPPCMCAsmInfo);
// Register the MC codegen info.
TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
+ TargetRegistry::RegisterMCCodeGenInfo(ThePPC64LETarget,
+ createPPCMCCodeGenInfo);
// Register the MC instruction info.
TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
+ TargetRegistry::RegisterMCInstrInfo(ThePPC64LETarget,
+ createPPCMCInstrInfo);
// Register the MC register info.
TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
+ TargetRegistry::RegisterMCRegInfo(ThePPC64LETarget, createPPCMCRegisterInfo);
// Register the MC subtarget info.
TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
createPPCMCSubtargetInfo);
TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
createPPCMCSubtargetInfo);
+ TargetRegistry::RegisterMCSubtargetInfo(ThePPC64LETarget,
+ createPPCMCSubtargetInfo);
// Register the MC Code Emitter
- TargetRegistry::RegisterCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
- TargetRegistry::RegisterCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
+ TargetRegistry::RegisterMCCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
+ TargetRegistry::RegisterMCCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
+ TargetRegistry::RegisterMCCodeEmitter(ThePPC64LETarget,
+ createPPCMCCodeEmitter);
// Register the asm backend.
- TargetRegistry::RegisterAsmBackend(ThePPC32Target, createPPCAsmBackend);
- TargetRegistry::RegisterAsmBackend(ThePPC64Target, createPPCAsmBackend);
+ TargetRegistry::RegisterMCAsmBackend(ThePPC32Target, createPPCAsmBackend);
+ TargetRegistry::RegisterMCAsmBackend(ThePPC64Target, createPPCAsmBackend);
+ TargetRegistry::RegisterMCAsmBackend(ThePPC64LETarget, createPPCAsmBackend);
// Register the object streamer.
- TargetRegistry::RegisterObjectStreamer(ThePPC32Target, createMCStreamer);
- TargetRegistry::RegisterObjectStreamer(ThePPC64Target, createMCStreamer);
+ TargetRegistry::RegisterMCObjectStreamer(ThePPC32Target, createMCStreamer);
+ TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
+ TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
+
+ // Register the asm streamer.
+ TargetRegistry::RegisterAsmStreamer(ThePPC32Target, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(ThePPC64Target, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(ThePPC64LETarget, createMCAsmStreamer);
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
+ TargetRegistry::RegisterMCInstPrinter(ThePPC64LETarget,
+ createPPCMCInstPrinter);
}