//===----------------------------------------------------------------------===//
#include "PPC.h"
+#include "MCTargetDesc/PPCMCExpr.h"
+#include "PPCSubtarget.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/AsmPrinter.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/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.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_NLP_FLAG))
- 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);
+ 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.
- if (MO.getTargetFlags() == PPCII::MO_DARWIN_STUB) {
- Name += "$stub";
- MCSymbol *Sym = Ctx.GetOrCreateSymbol(Name.str());
+ if (MO.getTargetFlags() == PPCII::MO_PLT_OR_STUB && isDarwin) {
MachineModuleInfoImpl::StubValueTy &StubSym =
getMachOMMI(AP).getFnStubEntry(Sym);
if (StubSym.getPointer())
if (MO.isGlobal()) {
StubSym =
MachineModuleInfoImpl::
- StubValueTy(AP.Mang->getSymbol(MO.getGlobal()),
+ StubValueTy(AP.getSymbol(MO.getGlobal()),
!MO.getGlobal()->hasInternalLinkage());
} else {
- Name.erase(Name.end()-5, Name.end());
StubSym =
MachineModuleInfoImpl::
- StubValueTy(Ctx.GetOrCreateSymbol(Name.str()), false);
+ StubValueTy(Ctx.getOrCreateSymbol(OrigName), false);
}
return Sym;
}
// If the symbol reference is actually to a non_lazy_ptr, not to the symbol,
// then add the suffix.
if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG) {
- Name += "$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) {
+ if (!StubSym.getPointer()) {
assert(MO.isGlobal() && "Extern symbol not handled yet");
StubSym = MachineModuleInfoImpl::
- StubValueTy(AP.Mang->getSymbol(MO.getGlobal()),
+ 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,
unsigned access = MO.getTargetFlags() & PPCII::MO_ACCESS_MASK;
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);
+ 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;
+ }
+
+ 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),
+ 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);
- // FIXME: We have no way to make the result be VK_PPC_LO16/VK_PPC_HA16,
- // since it is not a symbol!
+ const MCExpr *PB = MCSymbolRefExpr::create(MF->getPICBaseSymbol(), Ctx);
+ Expr = MCBinaryExpr::createSub(Expr, PB, Ctx);
}
-
- return MCOperand::CreateExpr(Expr);
+
+ // 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,
llvm_unreachable("unknown operand type");
case MachineOperand::MO_Register:
assert(!MO.getSubReg() && "Subregs should be eliminated!");
- MCOp = MCOperand::CreateReg(MO.getReg());
+ assert(MO.getReg() > PPC::NoRegister &&
+ MO.getReg() < PPC::NUM_TARGET_REGS &&
+ "Invalid register for this target!");
+ MCOp = MCOperand::createReg(MO.getReg());
break;
case MachineOperand::MO_Immediate:
- MCOp = MCOperand::CreateImm(MO.getImm());
+ MCOp = MCOperand::createImm(MO.getImm());
break;
case MachineOperand::MO_MachineBasicBlock:
- MCOp = MCOperand::CreateExpr(MCSymbolRefExpr::Create(
+ MCOp = MCOperand::createExpr(MCSymbolRefExpr::create(
MO.getMBB()->getSymbol(), AP.OutContext));
break;
case MachineOperand::MO_GlobalAddress:
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