//===----------------------------------------------------------------------===//
#include "PPC.h"
+#include "PPCSubtarget.h"
+#include "MCTargetDesc/PPCMCExpr.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/GlobalValue.h"
+#include "llvm/IR/Mangler.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/ADT/SmallString.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
using namespace llvm;
static MachineModuleInfoMachO &getMachOMMI(AsmPrinter &AP) {
static MCSymbol *GetSymbolFromOperand(const MachineOperand &MO, AsmPrinter &AP){
+ const TargetMachine &TM = AP.TM;
+ Mangler *Mang = AP.Mang;
+ const DataLayout *DL = TM.getSubtargetImpl()->getDataLayout();
MCContext &Ctx = AP.OutContext;
+ bool isDarwin = Triple(TM.getTargetTriple()).isOSDarwin();
SmallString<128> Name;
+ StringRef Suffix;
+ if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB) {
+ if (isDarwin)
+ Suffix = "$stub";
+ } else if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG)
+ Suffix = "$non_lazy_ptr";
+
+ if (!Suffix.empty())
+ Name += DL->getPrivateGlobalPrefix();
+
+ unsigned PrefixLen = Name.size();
+
if (!MO.isGlobal()) {
assert(MO.isSymbol() && "Isn't a symbol reference");
- Name += AP.MAI->getGlobalPrefix();
- Name += MO.getSymbolName();
- } else {
+ Mang->getNameWithPrefix(Name, MO.getSymbolName());
+ } else {
const GlobalValue *GV = MO.getGlobal();
- bool isImplicitlyPrivate = false;
- if (MO.getTargetFlags() == PPCII::MO_DARWIN_STUB ||
- //MO.getTargetFlags() == PPCII::MO_DARWIN_NONLAZY ||
- //MO.getTargetFlags() == PPCII::MO_DARWIN_NONLAZY_PIC_BASE ||
- //MO.getTargetFlags() == PPCII::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE
- 0)
- isImplicitlyPrivate = true;
-
- AP.Mang->getNameWithPrefix(Name, GV, isImplicitlyPrivate);
+ TM.getNameWithPrefix(Name, GV, *Mang);
}
-
+
+ unsigned OrigLen = Name.size() - PrefixLen;
+
+ Name += Suffix;
+ MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
+ StringRef OrigName = StringRef(Name).substr(PrefixLen, OrigLen);
+
// If the target flags on the operand changes the name of the symbol, do that
// before we return the symbol.
- switch (MO.getTargetFlags()) {
- default: break;
-#if 0
- case X86II::MO_DARWIN_NONLAZY:
- case X86II::MO_DARWIN_NONLAZY_PIC_BASE: {
- Name += "$non_lazy_ptr";
- MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
-
- MachineModuleInfoImpl::StubValueTy &StubSym =
- getMachOMMI(AP).getGVStubEntry(Sym);
- if (StubSym.getPointer() == 0) {
- assert(MO.isGlobal() && "Extern symbol not handled yet");
- StubSym =
- MachineModuleInfoImpl::
- StubValueTy(Mang->getSymbol(MO.getGlobal()),
- !MO.getGlobal()->hasInternalLinkage());
- }
- return Sym;
- }
- case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE: {
- Name += "$non_lazy_ptr";
- MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
- MachineModuleInfoImpl::StubValueTy &StubSym =
- getMachOMMI(AP).getHiddenGVStubEntry(Sym);
- if (StubSym.getPointer() == 0) {
- assert(MO.isGlobal() && "Extern symbol not handled yet");
- StubSym =
- MachineModuleInfoImpl::
- StubValueTy(Mang->getSymbol(MO.getGlobal()),
- !MO.getGlobal()->hasInternalLinkage());
- }
- return Sym;
- }
-#endif
- case PPCII::MO_DARWIN_STUB: {
- Name += "$stub";
- MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
+ if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB && isDarwin) {
MachineModuleInfoImpl::StubValueTy &StubSym =
getMachOMMI(AP).getFnStubEntry(Sym);
if (StubSym.getPointer())
if (MO.isGlobal()) {
StubSym =
MachineModuleInfoImpl::
- StubValueTy(AP.Mang->getSymbol(MO.getGlobal()),
+ StubValueTy(AP.getSymbol(MO.getGlobal()),
!MO.getGlobal()->hasInternalLinkage());
} else {
- Name.erase(Name.end()-5, Name.end());
StubSym =
MachineModuleInfoImpl::
- StubValueTy(Ctx.GetOrCreateSymbol(Name.str()), false);
+ StubValueTy(Ctx.GetOrCreateSymbol(OrigName), false);
}
return Sym;
}
+
+ // If the symbol reference is actually to a non_lazy_ptr, not to the symbol,
+ // then add the suffix.
+ if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG) {
+ MachineModuleInfoMachO &MachO = getMachOMMI(AP);
+
+ MachineModuleInfoImpl::StubValueTy &StubSym =
+ (MO.getTargetFlags() & PPCII::MO_NLP_HIDDEN_FLAG) ?
+ MachO.getHiddenGVStubEntry(Sym) : MachO.getGVStubEntry(Sym);
+
+ if (!StubSym.getPointer()) {
+ assert(MO.isGlobal() && "Extern symbol not handled yet");
+ StubSym = MachineModuleInfoImpl::
+ StubValueTy(AP.getSymbol(MO.getGlobal()),
+ !MO.getGlobal()->hasInternalLinkage());
+ }
+ return Sym;
}
- return Ctx.GetOrCreateSymbol(Name.str());
+ return Sym;
}
static MCOperand GetSymbolRef(const MachineOperand &MO, const MCSymbol *Symbol,
- AsmPrinter &Printer) {
+ AsmPrinter &Printer, bool isDarwin) {
MCContext &Ctx = Printer.OutContext;
MCSymbolRefExpr::VariantKind RefKind = MCSymbolRefExpr::VK_None;
- const MCExpr *Expr = 0;
- switch (MO.getTargetFlags()) {
- default: assert(0 && "Unknown target flag on symbol operand");
- case PPCII::MO_NO_FLAG:
- // These affect the name of the symbol, not any suffix.
- case PPCII::MO_DARWIN_STUB:
- break;
-
-#if 0
- case PPCII::MO_LO16:
- Expr = MCSymbolRefExpr::Create(Symbol, MCSymbolRefExpr::VK_ARM_LO16, Ctx);
- break;
-#endif
+ unsigned access = MO.getTargetFlags() & PPCII::MO_ACCESS_MASK;
+
+ switch (access) {
+ case PPCII::MO_TPREL_LO:
+ RefKind = MCSymbolRefExpr::VK_PPC_TPREL_LO;
+ break;
+ case PPCII::MO_TPREL_HA:
+ RefKind = MCSymbolRefExpr::VK_PPC_TPREL_HA;
+ break;
+ case PPCII::MO_DTPREL_LO:
+ RefKind = MCSymbolRefExpr::VK_PPC_DTPREL_LO;
+ break;
+ case PPCII::MO_TLSLD_LO:
+ RefKind = MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO;
+ break;
+ case PPCII::MO_TOC_LO:
+ RefKind = MCSymbolRefExpr::VK_PPC_TOC_LO;
+ break;
+ case PPCII::MO_TLS:
+ RefKind = MCSymbolRefExpr::VK_PPC_TLS;
+ break;
+ case PPCII::MO_TLSGD:
+ RefKind = MCSymbolRefExpr::VK_PPC_TLSGD;
+ break;
+ case PPCII::MO_TLSLD:
+ RefKind = MCSymbolRefExpr::VK_PPC_TLSLD;
+ break;
}
- if (Expr == 0)
- Expr = MCSymbolRefExpr::Create(Symbol, RefKind, Ctx);
+ if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB && !isDarwin)
+ RefKind = MCSymbolRefExpr::VK_PLT;
+
+ const MCExpr *Expr = MCSymbolRefExpr::Create(Symbol, RefKind, Ctx);
-
if (!MO.isJTI() && MO.getOffset())
Expr = MCBinaryExpr::CreateAdd(Expr,
MCConstantExpr::Create(MO.getOffset(), Ctx),
Ctx);
+
+ // Subtract off the PIC base if required.
+ if (MO.getTargetFlags() & PPCII::MO_PIC_FLAG) {
+ const MachineFunction *MF = MO.getParent()->getParent()->getParent();
+
+ const MCExpr *PB = MCSymbolRefExpr::Create(MF->getPICBaseSymbol(), Ctx);
+ Expr = MCBinaryExpr::CreateSub(Expr, PB, Ctx);
+ }
+
+ // Add ha16() / lo16() markers if required.
+ switch (access) {
+ case PPCII::MO_LO:
+ Expr = PPCMCExpr::CreateLo(Expr, isDarwin, Ctx);
+ break;
+ case PPCII::MO_HA:
+ Expr = PPCMCExpr::CreateHa(Expr, isDarwin, Ctx);
+ break;
+ }
+
return MCOperand::CreateExpr(Expr);
-
}
void llvm::LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
- AsmPrinter &AP) {
+ AsmPrinter &AP, bool isDarwin) {
OutMI.setOpcode(MI->getOpcode());
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
switch (MO.getType()) {
default:
MI->dump();
- assert(0 && "unknown operand type");
+ llvm_unreachable("unknown operand type");
case MachineOperand::MO_Register:
assert(!MO.getSubReg() && "Subregs should be eliminated!");
MCOp = MCOperand::CreateReg(MO.getReg());
break;
case MachineOperand::MO_GlobalAddress:
case MachineOperand::MO_ExternalSymbol:
- MCOp = GetSymbolRef(MO, GetSymbolFromOperand(MO, AP), AP);
+ MCOp = GetSymbolRef(MO, GetSymbolFromOperand(MO, AP), AP, isDarwin);
break;
case MachineOperand::MO_JumpTableIndex:
- MCOp = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP);
+ MCOp = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP, isDarwin);
break;
case MachineOperand::MO_ConstantPoolIndex:
- MCOp = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP);
+ MCOp = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP, isDarwin);
break;
case MachineOperand::MO_BlockAddress:
- MCOp = GetSymbolRef(MO,AP.GetBlockAddressSymbol(MO.getBlockAddress()),AP);
+ MCOp = GetSymbolRef(MO,AP.GetBlockAddressSymbol(MO.getBlockAddress()),AP,
+ isDarwin);
break;
+ case MachineOperand::MO_RegisterMask:
+ continue;
}
OutMI.addOperand(MCOp);
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