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-rw-r--r--lib/Target/PowerPC/PPCAsmPrinter.cpp519
1 files changed, 436 insertions, 83 deletions
diff --git a/lib/Target/PowerPC/PPCAsmPrinter.cpp b/lib/Target/PowerPC/PPCAsmPrinter.cpp
index 6e0e8bb..adb673b 100644
--- a/lib/Target/PowerPC/PPCAsmPrinter.cpp
+++ b/lib/Target/PowerPC/PPCAsmPrinter.cpp
@@ -18,14 +18,13 @@
#define DEBUG_TYPE "asmprinter"
#include "PPC.h"
-#include "PPCTargetMachine.h"
-#include "PPCSubtarget.h"
#include "InstPrinter/PPCInstPrinter.h"
#include "MCTargetDesc/PPCPredicates.h"
-#include "llvm/Constants.h"
-#include "llvm/DebugInfo.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Module.h"
+#include "PPCSubtarget.h"
+#include "PPCTargetMachine.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/MachineFunctionPass.h"
@@ -33,33 +32,36 @@
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
+#include "llvm/DebugInfo.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Module.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstBuilder.h"
+#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCSectionELF.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetOptions.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
-#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MathExtras.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/ELF.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/SmallString.h"
+#include "llvm/Target/Mangler.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetOptions.h"
+#include "llvm/Target/TargetRegisterInfo.h"
using namespace llvm;
namespace {
class PPCAsmPrinter : public AsmPrinter {
protected:
- DenseMap<MCSymbol*, MCSymbol*> TOC;
+ MapVector<MCSymbol*, MCSymbol*> TOC;
const PPCSubtarget &Subtarget;
uint64_t TOCLabelID;
public:
@@ -71,6 +73,7 @@ namespace {
return "PowerPC Assembly Printer";
}
+ MCSymbol *lookUpOrCreateTOCEntry(MCSymbol *Sym);
virtual void EmitInstruction(const MachineInstr *MI);
@@ -284,8 +287,22 @@ bool PPCAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant,
const char *ExtraCode,
raw_ostream &O) {
- if (ExtraCode && ExtraCode[0])
- return true; // Unknown modifier.
+ if (ExtraCode && ExtraCode[0]) {
+ if (ExtraCode[1] != 0) return true; // Unknown modifier.
+
+ switch (ExtraCode[0]) {
+ default: return true; // Unknown modifier.
+ case 'y': // A memory reference for an X-form instruction
+ {
+ const char *RegName = "r0";
+ if (!Subtarget.isDarwin()) RegName = stripRegisterPrefix(RegName);
+ O << RegName << ", ";
+ printOperand(MI, OpNo, O);
+ return false;
+ }
+ }
+ }
+
assert(MI->getOperand(OpNo).isReg());
O << "0(";
printOperand(MI, OpNo, O);
@@ -294,6 +311,25 @@ bool PPCAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
}
+/// lookUpOrCreateTOCEntry -- Given a symbol, look up whether a TOC entry
+/// 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];
+
+ // 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);
+ }
+ }
+
+ return TOCEntry;
+}
+
+
/// EmitInstruction -- Print out a single PowerPC MI in Darwin syntax to
/// the current output stream.
///
@@ -334,14 +370,10 @@ void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
MCSymbol *PICBase = MF->getPICBaseSymbol();
// Emit the 'bl'.
- TmpInst.setOpcode(PPC::BL_Darwin); // Darwin vs SVR4 doesn't matter here.
-
-
- // FIXME: We would like an efficient form for this, so we don't have to do
- // a lot of extra uniquing.
- TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::
- Create(PICBase, OutContext)));
- OutStreamer.EmitInstruction(TmpInst);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::BL_Darwin) // Darwin vs SVR4 doesn't matter here.
+ // 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)));
// Emit the label.
OutStreamer.EmitLabel(PICBase);
@@ -367,10 +399,9 @@ void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
MOSymbol = GetCPISymbol(MO.getIndex());
else if (MO.isJTI())
MOSymbol = GetJTISymbol(MO.getIndex());
- MCSymbol *&TOCEntry = TOC[MOSymbol];
- if (TOCEntry == 0)
- TOCEntry = GetTempSymbol("C", TOCLabelID++);
-
+
+ MCSymbol *TOCEntry = lookUpOrCreateTOCEntry(MOSymbol);
+
const MCExpr *Exp =
MCSymbolRefExpr::Create(TOCEntry, MCSymbolRefExpr::VK_PPC_TOC_ENTRY,
OutContext);
@@ -379,15 +410,298 @@ void PPCAsmPrinter::EmitInstruction(const MachineInstr *MI) {
return;
}
+ case PPC::ADDIStocHA: {
+ // Transform %Xd = ADDIStocHA %X2, <ga:@sym>
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, Subtarget.isDarwin());
+
+ // Change the opcode to ADDIS8. If the global address is external,
+ // has common linkage, is a 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()) &&
+ "Invalid operand for ADDIStocHA!");
+ MCSymbol *MOSymbol = 0;
+ bool IsExternal = false;
+ bool IsFunction = 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();
+ } else if (MO.isCPI())
+ MOSymbol = GetCPISymbol(MO.getIndex());
+ else if (MO.isJTI())
+ MOSymbol = GetJTISymbol(MO.getIndex());
+
+ if (IsExternal || IsFunction || IsCommon || IsAvailExt || MO.isJTI())
+ MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+
+ const MCExpr *Exp =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_HA,
+ OutContext);
+ TmpInst.getOperand(2) = MCOperand::CreateExpr(Exp);
+ OutStreamer.EmitInstruction(TmpInst);
+ return;
+ }
+ case PPC::LDtocL: {
+ // Transform %Xd = LDtocL <ga:@sym>, %Xs
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, Subtarget.isDarwin());
+
+ // Change the opcode to LDrs, which is a form of LD with the offset
+ // specified by a SymbolLo. 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::LDrs);
+ const MachineOperand &MO = MI->getOperand(1);
+ assert((MO.isGlobal() || MO.isJTI()) && "Invalid operand for LDtocL!");
+ MCSymbol *MOSymbol = 0;
+
+ if (MO.isJTI())
+ MOSymbol = lookUpOrCreateTOCEntry(GetJTISymbol(MO.getIndex()));
+ else {
+ 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 = lookUpOrCreateTOCEntry(MOSymbol);
+ }
+
+ const MCExpr *Exp =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_LO,
+ OutContext);
+ TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
+ OutStreamer.EmitInstruction(TmpInst);
+ return;
+ }
+ case PPC::ADDItocL: {
+ // Transform %Xd = ADDItocL %Xs, <ga:@sym>
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, Subtarget.isDarwin());
+
+ // Change the opcode to ADDI8L. If the global address is external, then
+ // generate a TOC entry and reference that. Otherwise reference the
+ // symbol directly.
+ TmpInst.setOpcode(PPC::ADDI8L);
+ const MachineOperand &MO = MI->getOperand(2);
+ assert((MO.isGlobal() || MO.isCPI()) && "Invalid operand for ADDItocL");
+ MCSymbol *MOSymbol = 0;
+ bool IsExternal = false;
+ bool IsFunction = 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;
+ } else if (MO.isCPI())
+ MOSymbol = GetCPISymbol(MO.getIndex());
+
+ if (IsFunction || IsExternal)
+ MOSymbol = lookUpOrCreateTOCEntry(MOSymbol);
+
+ const MCExpr *Exp =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_TOC16_LO,
+ OutContext);
+ TmpInst.getOperand(2) = MCOperand::CreateExpr(Exp);
+ OutStreamer.EmitInstruction(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");
+ const MachineOperand &MO = MI->getOperand(2);
+ const GlobalValue *GValue = MO.getGlobal();
+ MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ const MCExpr *SymGotTprel =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL16_HA,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(PPC::X2)
+ .addExpr(SymGotTprel));
+ return;
+ }
+ case PPC::LDgotTprelL: {
+ // Transform %Xd = LDgotTprelL <ga:@sym>, %Xs
+ LowerPPCMachineInstrToMCInst(MI, TmpInst, *this, Subtarget.isDarwin());
+
+ // Change the opcode to LDrs, which is a form of LD with the offset
+ // specified by a SymbolLo.
+ TmpInst.setOpcode(PPC::LDrs);
+ const MachineOperand &MO = MI->getOperand(1);
+ const GlobalValue *GValue = MO.getGlobal();
+ MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ const MCExpr *Exp =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TPREL16_LO,
+ OutContext);
+ TmpInst.getOperand(1) = MCOperand::CreateExpr(Exp);
+ OutStreamer.EmitInstruction(TmpInst);
+ 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");
+ 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_HA,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(PPC::X2)
+ .addExpr(SymGotTlsGD));
+ return;
+ }
+ case PPC::ADDItlsgdL: {
+ // Transform: %Xd = ADDItlsgdL %Xs, <ga:@sym>
+ // Into: %Xd = ADDI8L %Xs, sym@got@tlsgd@l
+ 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);
+ const MCExpr *SymGotTlsGD =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSGD16_LO,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8L)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsGD));
+ return;
+ }
+ case PPC::GETtlsADDR: {
+ // Transform: %X3 = GETtlsADDR %X3, <ga:@sym>
+ // Into: BL8_NOP_ELF_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_ELF_TLSGD)
+ .addExpr(TlsRef)
+ .addExpr(SymVar));
+ 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");
+ 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_HA,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(PPC::X2)
+ .addExpr(SymGotTlsLD));
+ return;
+ }
+ case PPC::ADDItlsldL: {
+ // Transform: %Xd = ADDItlsldL %Xs, <ga:@sym>
+ // Into: %Xd = ADDI8L %Xs, sym@got@tlsld@l
+ 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);
+ const MCExpr *SymGotTlsLD =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_GOT_TLSLD16_LO,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8L)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(MI->getOperand(1).getReg())
+ .addExpr(SymGotTlsLD));
+ return;
+ }
+ case PPC::GETtlsldADDR: {
+ // Transform: %X3 = GETtlsldADDR %X3, <ga:@sym>
+ // Into: BL8_NOP_ELF_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_ELF_TLSLD)
+ .addExpr(TlsRef)
+ .addExpr(SymVar));
+ return;
+ }
+ 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");
+ const MachineOperand &MO = MI->getOperand(2);
+ const GlobalValue *GValue = MO.getGlobal();
+ MCSymbol *MOSymbol = Mang->getSymbol(GValue);
+ const MCExpr *SymDtprel =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL16_HA,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS8)
+ .addReg(MI->getOperand(0).getReg())
+ .addReg(PPC::X3)
+ .addExpr(SymDtprel));
+ return;
+ }
+ case PPC::ADDIdtprelL: {
+ // Transform: %Xd = ADDIdtprelL %Xs, <ga:@sym>
+ // Into: %Xd = ADDI8L %Xs, sym@dtprel@l
+ 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);
+ const MCExpr *SymDtprel =
+ MCSymbolRefExpr::Create(MOSymbol, MCSymbolRefExpr::VK_PPC_DTPREL16_LO,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDI8L)
+ .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()));
- TmpInst.setOpcode(Subtarget.isPPC64() ? PPC::MFCR8 : PPC::MFCR);
- TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg()));
- OutStreamer.EmitInstruction(TmpInst);
+ 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...
@@ -415,11 +729,17 @@ void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
OutStreamer.EmitValueToAlignment(8);
MCSymbol *Symbol1 =
OutContext.GetOrCreateSymbol(".L." + Twine(CurrentFnSym->getName()));
- MCSymbol *Symbol2 = OutContext.GetOrCreateSymbol(StringRef(".TOC.@tocbase"));
+ // Generates a R_PPC64_ADDR64 (from FK_DATA_8) relocation for the function
+ // entry point.
OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol1, OutContext),
8/*size*/, 0/*addrspace*/);
- OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol2, OutContext),
+ MCSymbol *Symbol2 = OutContext.GetOrCreateSymbol(StringRef(".TOC."));
+ // Generates a R_PPC64_TOC relocation for TOC base insertion.
+ OutStreamer.EmitValue(MCSymbolRefExpr::Create(Symbol2,
+ MCSymbolRefExpr::VK_PPC_TOC, OutContext),
8/*size*/, 0/*addrspace*/);
+ // Emit a null environment pointer.
+ OutStreamer.EmitIntValue(0, 8 /* size */, 0 /* addrspace */);
OutStreamer.SwitchSection(Current);
MCSymbol *RealFnSym = OutContext.GetOrCreateSymbol(
@@ -430,7 +750,7 @@ void PPCLinuxAsmPrinter::EmitFunctionEntryLabel() {
bool PPCLinuxAsmPrinter::doFinalization(Module &M) {
- const TargetData *TD = TM.getTargetData();
+ const DataLayout *TD = TM.getDataLayout();
bool isPPC64 = TD->getPointerSizeInBits() == 64;
@@ -440,12 +760,11 @@ bool PPCLinuxAsmPrinter::doFinalization(Module &M) {
SectionKind::getReadOnly());
OutStreamer.SwitchSection(Section);
- // FIXME: This is nondeterminstic!
- for (DenseMap<MCSymbol*, MCSymbol*>::iterator I = TOC.begin(),
+ for (MapVector<MCSymbol*, MCSymbol*>::iterator I = TOC.begin(),
E = TOC.end(); I != E; ++I) {
OutStreamer.EmitLabel(I->second);
- OutStreamer.EmitRawText("\t.tc " + Twine(I->first->getName()) +
- "[TC]," + I->first->getName());
+ MCSymbol *S = OutContext.GetOrCreateSymbol(I->first->getName());
+ OutStreamer.EmitTCEntry(*S);
}
}
@@ -524,21 +843,18 @@ void PPCDarwinAsmPrinter::EmitStartOfAsmFile(Module &M) {
static MCSymbol *GetLazyPtr(MCSymbol *Sym, MCContext &Ctx) {
// Remove $stub suffix, add $lazy_ptr.
- SmallString<128> TmpStr(Sym->getName().begin(), Sym->getName().end()-5);
- TmpStr += "$lazy_ptr";
- return Ctx.GetOrCreateSymbol(TmpStr.str());
+ StringRef NoStub = Sym->getName().substr(0, Sym->getName().size()-5);
+ return Ctx.GetOrCreateSymbol(NoStub + "$lazy_ptr");
}
static MCSymbol *GetAnonSym(MCSymbol *Sym, MCContext &Ctx) {
// Add $tmp suffix to $stub, yielding $stub$tmp.
- SmallString<128> TmpStr(Sym->getName().begin(), Sym->getName().end());
- TmpStr += "$tmp";
- return Ctx.GetOrCreateSymbol(TmpStr.str());
+ return Ctx.GetOrCreateSymbol(Sym->getName() + "$tmp");
}
void PPCDarwinAsmPrinter::
EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
- bool isPPC64 = TM.getTargetData()->getPointerSizeInBits() == 64;
+ bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits() == 64;
const TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering());
@@ -564,32 +880,50 @@ EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
OutStreamer.EmitLabel(Stub);
OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
+
+ // mflr r0
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R0));
// FIXME: MCize this.
- OutStreamer.EmitRawText(StringRef("\tmflr r0"));
- OutStreamer.EmitRawText("\tbcl 20,31," + Twine(AnonSymbol->getName()));
+ OutStreamer.EmitRawText("\tbcl 20, 31, " + Twine(AnonSymbol->getName()));
OutStreamer.EmitLabel(AnonSymbol);
- OutStreamer.EmitRawText(StringRef("\tmflr r11"));
- OutStreamer.EmitRawText("\taddis r11,r11,ha16("+Twine(LazyPtr->getName())+
- "-" + AnonSymbol->getName() + ")");
- OutStreamer.EmitRawText(StringRef("\tmtlr r0"));
-
- if (isPPC64)
- OutStreamer.EmitRawText("\tldu r12,lo16(" + Twine(LazyPtr->getName()) +
- "-" + AnonSymbol->getName() + ")(r11)");
- else
- OutStreamer.EmitRawText("\tlwzu r12,lo16(" + Twine(LazyPtr->getName()) +
- "-" + AnonSymbol->getName() + ")(r11)");
- OutStreamer.EmitRawText(StringRef("\tmtctr r12"));
- OutStreamer.EmitRawText(StringRef("\tbctr"));
-
+ // mflr r11
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R11));
+ // addis r11, r11, ha16(LazyPtr - AnonSymbol)
+ const MCExpr *Sub =
+ MCBinaryExpr::CreateSub(MCSymbolRefExpr::Create(LazyPtr, OutContext),
+ MCSymbolRefExpr::Create(AnonSymbol, OutContext),
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::ADDIS)
+ .addReg(PPC::R11)
+ .addReg(PPC::R11)
+ .addExpr(Sub));
+ // mtlr r0
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::MTLR).addReg(PPC::R0));
+
+ // ldu r12, lo16(LazyPtr - AnonSymbol)(r11)
+ // lwzu r12, lo16(LazyPtr - AnonSymbol)(r11)
+ OutStreamer.EmitInstruction(MCInstBuilder(isPPC64 ? PPC::LDU : PPC::LWZU)
+ .addReg(PPC::R12)
+ .addExpr(Sub).addExpr(Sub)
+ .addReg(PPC::R11));
+ // mtctr r12
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::MTCTR).addReg(PPC::R12));
+ // bctr
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCTR));
+
OutStreamer.SwitchSection(LSPSection);
OutStreamer.EmitLabel(LazyPtr);
OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
-
- if (isPPC64)
- OutStreamer.EmitRawText(StringRef("\t.quad dyld_stub_binding_helper"));
- else
- OutStreamer.EmitRawText(StringRef("\t.long dyld_stub_binding_helper"));
+
+ MCSymbol *DyldStubBindingHelper =
+ OutContext.GetOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
+ if (isPPC64) {
+ // .quad dyld_stub_binding_helper
+ OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 8);
+ } else {
+ // .long dyld_stub_binding_helper
+ OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 4);
+ }
}
OutStreamer.AddBlankLine();
return;
@@ -609,23 +943,42 @@ EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
EmitAlignment(4);
OutStreamer.EmitLabel(Stub);
OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
- OutStreamer.EmitRawText("\tlis r11,ha16(" + Twine(LazyPtr->getName()) +")");
- if (isPPC64)
- OutStreamer.EmitRawText("\tldu r12,lo16(" + Twine(LazyPtr->getName()) +
- ")(r11)");
- else
- OutStreamer.EmitRawText("\tlwzu r12,lo16(" + Twine(LazyPtr->getName()) +
- ")(r11)");
- OutStreamer.EmitRawText(StringRef("\tmtctr r12"));
- OutStreamer.EmitRawText(StringRef("\tbctr"));
+ // lis r11, ha16(LazyPtr)
+ const MCExpr *LazyPtrHa16 =
+ MCSymbolRefExpr::Create(LazyPtr, MCSymbolRefExpr::VK_PPC_DARWIN_HA16,
+ OutContext);
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::LIS)
+ .addReg(PPC::R11)
+ .addExpr(LazyPtrHa16));
+
+ const MCExpr *LazyPtrLo16 =
+ MCSymbolRefExpr::Create(LazyPtr, MCSymbolRefExpr::VK_PPC_DARWIN_LO16,
+ OutContext);
+ // ldu r12, lo16(LazyPtr)(r11)
+ // lwzu r12, lo16(LazyPtr)(r11)
+ OutStreamer.EmitInstruction(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));
+ // bctr
+ OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCTR));
+
OutStreamer.SwitchSection(LSPSection);
OutStreamer.EmitLabel(LazyPtr);
OutStreamer.EmitSymbolAttribute(RawSym, MCSA_IndirectSymbol);
-
- if (isPPC64)
- OutStreamer.EmitRawText(StringRef("\t.quad dyld_stub_binding_helper"));
- else
- OutStreamer.EmitRawText(StringRef("\t.long dyld_stub_binding_helper"));
+
+ MCSymbol *DyldStubBindingHelper =
+ OutContext.GetOrCreateSymbol(StringRef("dyld_stub_binding_helper"));
+ if (isPPC64) {
+ // .quad dyld_stub_binding_helper
+ OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 8);
+ } else {
+ // .long dyld_stub_binding_helper
+ OutStreamer.EmitSymbolValue(DyldStubBindingHelper, 4);
+ }
}
OutStreamer.AddBlankLine();
@@ -633,7 +986,7 @@ EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
bool PPCDarwinAsmPrinter::doFinalization(Module &M) {
- bool isPPC64 = TM.getTargetData()->getPointerSizeInBits() == 64;
+ bool isPPC64 = TM.getDataLayout()->getPointerSizeInBits() == 64;
// Darwin/PPC always uses mach-o.
const TargetLoweringObjectFileMachO &TLOFMacho =
generated by cgit v1.1 at 2025-11-10 18:19:54 +0000