#include "PPC.h"
#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCExpr.h"
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)
+ (MO.getTargetFlags() & PPCII::MO_NLP_FLAG))
isImplicitlyPrivate = true;
AP.Mang->getNameWithPrefix(Name, GV, isImplicitlyPrivate);
// 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: {
+ if (MO.getTargetFlags() == PPCII::MO_DARWIN_STUB) {
Name += "$stub";
MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
MachineModuleInfoImpl::StubValueTy &StubSym =
}
return Sym;
}
+
+ // If the symbol reference is actually to a non_lazy_ptr, not to the symbol,
+ // then add the suffix.
+ if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG) {
+ Name += "$non_lazy_ptr";
+ MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
+
+ MachineModuleInfoMachO &MachO = getMachOMMI(AP);
+
+ MachineModuleInfoImpl::StubValueTy &StubSym =
+ (MO.getTargetFlags() & PPCII::MO_NLP_HIDDEN_FLAG) ?
+ MachO.getHiddenGVStubEntry(Sym) : MachO.getGVStubEntry(Sym);
+
+ if (StubSym.getPointer() == 0) {
+ assert(MO.isGlobal() && "Extern symbol not handled yet");
+ StubSym = MachineModuleInfoImpl::
+ StubValueTy(AP.Mang->getSymbol(MO.getGlobal()),
+ !MO.getGlobal()->hasInternalLinkage());
+ }
+ return Sym;
}
return Ctx.GetOrCreateSymbol(Name.str());
}
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;
- if (Expr == 0)
- Expr = MCSymbolRefExpr::Create(Symbol, RefKind, Ctx);
+ switch (access) {
+ case PPCII::MO_HA16: RefKind = isDarwin ?
+ MCSymbolRefExpr::VK_PPC_DARWIN_HA16 :
+ MCSymbolRefExpr::VK_PPC_GAS_HA16;
+ break;
+ case PPCII::MO_LO16: RefKind = isDarwin ?
+ MCSymbolRefExpr::VK_PPC_DARWIN_LO16 :
+ MCSymbolRefExpr::VK_PPC_GAS_LO16;
+ break;
+ case PPCII::MO_TPREL16_HA: RefKind = MCSymbolRefExpr::VK_PPC_TPREL16_HA;
+ break;
+ case PPCII::MO_TPREL16_LO: RefKind = MCSymbolRefExpr::VK_PPC_TPREL16_LO;
+ break;
+ }
+ // FIXME: This isn't right, but we don't have a good way to express this in
+ // the MC Level, see below.
+ if (MO.getTargetFlags() & PPCII::MO_PIC_FLAG)
+ RefKind = MCSymbolRefExpr::VK_None;
+ const MCExpr *Expr = MCSymbolRefExpr::Create(Symbol, RefKind, Ctx);
+
if (!MO.isJTI() && MO.getOffset())
Expr = MCBinaryExpr::CreateAdd(Expr,
MCConstantExpr::Create(MO.getOffset(), Ctx),
Ctx);
- return MCOperand::CreateExpr(Expr);
+
+ // 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);
+ // FIXME: We have no way to make the result be VK_PPC_LO16/VK_PPC_HA16,
+ // since it is not a symbol!
+ }
+ 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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