#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
-#include "llvm/Assembly/Writer.h"
#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Target/TargetAsmInfo.h"
-#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Target/Mangler.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOptions.h"
-#include "llvm/ADT/Statistic.h"
+#include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
-#include <set>
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
- STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
- const std::string bss_section(".bss");
-
- struct VISIBILITY_HIDDEN SPUAsmPrinter : public AsmPrinter {
- std::set<std::string> FnStubs, GVStubs;
-
- SPUAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T) :
- AsmPrinter(O, TM, T)
- {
- }
+ class SPUAsmPrinter : public AsmPrinter {
+ public:
+ explicit SPUAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) :
+ AsmPrinter(TM, Streamer) {}
virtual const char *getPassName() const {
return "STI CBEA SPU Assembly Printer";
}
- SPUTargetMachine &getTM() {
- return static_cast<SPUTargetMachine&>(TM);
- }
-
/// printInstruction - This method is automatically generated by tablegen
- /// from the instruction set description. This method returns true if the
- /// machine instruction was sufficiently described to print it, otherwise it
- /// returns false.
- bool printInstruction(const MachineInstr *MI);
-
- void printMachineInstruction(const MachineInstr *MI);
- void printOp(const MachineOperand &MO);
-
- /// printRegister - Print register according to target requirements.
- ///
- void printRegister(const MachineOperand &MO, bool R0AsZero) {
- unsigned RegNo = MO.getReg();
- assert(MRegisterInfo::isPhysicalRegister(RegNo) && "Not physreg??");
- O << TM.getRegisterInfo()->get(RegNo).Name;
+ /// from the instruction set description.
+ void printInstruction(const MachineInstr *MI, raw_ostream &OS);
+ static const char *getRegisterName(unsigned RegNo);
+
+
+ void EmitInstruction(const MachineInstr *MI) {
+ SmallString<128> Str;
+ raw_svector_ostream OS(Str);
+ printInstruction(MI, OS);
+ OutStreamer.EmitRawText(OS.str());
}
+ void printOp(const MachineOperand &MO, raw_ostream &OS);
- void printOperand(const MachineInstr *MI, unsigned OpNo) {
+ void printOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
const MachineOperand &MO = MI->getOperand(OpNo);
- if (MO.isRegister()) {
- assert(MRegisterInfo::isPhysicalRegister(MO.getReg())&&"Not physreg??");
- O << TM.getRegisterInfo()->get(MO.getReg()).Name;
- } else if (MO.isImmediate()) {
+ if (MO.isReg()) {
+ O << getRegisterName(MO.getReg());
+ } else if (MO.isImm()) {
O << MO.getImm();
} else {
- printOp(MO);
+ printOp(MO, O);
}
}
-
+
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode);
+ unsigned AsmVariant, const char *ExtraCode,
+ raw_ostream &O);
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant, const char *ExtraCode);
-
-
- void
- printS7ImmOperand(const MachineInstr *MI, unsigned OpNo)
- {
- int value = MI->getOperand(OpNo).getImm();
- value = (value << (32 - 7)) >> (32 - 7);
+ unsigned AsmVariant, const char *ExtraCode,
+ raw_ostream &O);
- assert((value >= -(1 << 8) && value <= (1 << 7) - 1)
- && "Invalid s7 argument");
- O << value;
- }
void
- printU7ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printU7ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
unsigned int value = MI->getOperand(OpNo).getImm();
assert(value < (1 << 8) && "Invalid u7 argument");
O << value;
}
-
+
void
- printMemRegImmS7(const MachineInstr *MI, unsigned OpNo)
+ printShufAddr(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
char value = MI->getOperand(OpNo).getImm();
O << (int) value;
O << "(";
- printOperand(MI, OpNo+1);
+ printOperand(MI, OpNo+1, O);
O << ")";
}
void
- printS16ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printS16ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
O << (short) MI->getOperand(OpNo).getImm();
}
void
- printU16ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printU16ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
O << (unsigned short)MI->getOperand(OpNo).getImm();
}
void
- printU32ImmOperand(const MachineInstr *MI, unsigned OpNo)
- {
- O << (unsigned)MI->getOperand(OpNo).getImm();
- }
-
- void
- printMemRegReg(const MachineInstr *MI, unsigned OpNo) {
+ printMemRegReg(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
// When used as the base register, r0 reads constant zero rather than
// the value contained in the register. For this reason, the darwin
// assembler requires that we print r0 as 0 (no r) when used as the base.
const MachineOperand &MO = MI->getOperand(OpNo);
- O << TM.getRegisterInfo()->get(MO.getReg()).Name;
- O << ", ";
- printOperand(MI, OpNo+1);
+ O << getRegisterName(MO.getReg()) << ", ";
+ printOperand(MI, OpNo+1, O);
}
void
- printU18ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printU18ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
unsigned int value = MI->getOperand(OpNo).getImm();
assert(value <= (1 << 19) - 1 && "Invalid u18 argument");
}
void
- printS10ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printS10ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
short value = (short) (((int) MI->getOperand(OpNo).getImm() << 16)
>> 16);
}
void
- printU10ImmOperand(const MachineInstr *MI, unsigned OpNo)
+ printU10ImmOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
short value = (short) (((int) MI->getOperand(OpNo).getImm() << 16)
>> 16);
}
void
- printMemRegImmS10(const MachineInstr *MI, unsigned OpNo)
+ printDFormAddr(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
- const MachineOperand &MO = MI->getOperand(OpNo);
- assert(MO.isImmediate()
- && "printMemRegImmS10 first operand is not immedate");
- printS10ImmOperand(MI, OpNo);
- O << "(";
- printOperand(MI, OpNo+1);
+ assert(MI->getOperand(OpNo).isImm() &&
+ "printDFormAddr first operand is not immediate");
+ int64_t value = int64_t(MI->getOperand(OpNo).getImm());
+ int16_t value16 = int16_t(value);
+ assert((value16 >= -(1 << (9+4)) && value16 <= (1 << (9+4)) - 1)
+ && "Invalid dform s10 offset argument");
+ O << (value16 & ~0xf) << "(";
+ printOperand(MI, OpNo+1, O);
O << ")";
}
void
- printAddr256K(const MachineInstr *MI, unsigned OpNo)
+ printAddr256K(const MachineInstr *MI, unsigned OpNo, raw_ostream &O)
{
/* Note: operand 1 is an offset or symbol name. */
- if (MI->getOperand(OpNo).isImmediate()) {
- printS16ImmOperand(MI, OpNo);
+ if (MI->getOperand(OpNo).isImm()) {
+ printS16ImmOperand(MI, OpNo, O);
} else {
- printOp(MI->getOperand(OpNo));
- if (MI->getOperand(OpNo+1).isImmediate()) {
+ printOp(MI->getOperand(OpNo), O);
+ if (MI->getOperand(OpNo+1).isImm()) {
int displ = int(MI->getOperand(OpNo+1).getImm());
if (displ > 0)
O << "+" << displ;
}
}
- void printCallOperand(const MachineInstr *MI, unsigned OpNo) {
- printOp(MI->getOperand(OpNo));
+ void printCallOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ printOp(MI->getOperand(OpNo), O);
}
- void printPCRelativeOperand(const MachineInstr *MI, unsigned OpNo) {
- printOp(MI->getOperand(OpNo));
- O << "-.";
+ void printHBROperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ printOp(MI->getOperand(OpNo), O);
}
- void printSymbolHi(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- printS16ImmOperand(MI, OpNo);
+ void printPCRelativeOperand(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ // Used to generate a ".-<target>", but it turns out that the assembler
+ // really wants the target.
+ //
+ // N.B.: This operand is used for call targets. Branch hints are another
+ // animal entirely.
+ printOp(MI->getOperand(OpNo), O);
+ }
+
+ void printSymbolHi(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ if (MI->getOperand(OpNo).isImm()) {
+ printS16ImmOperand(MI, OpNo, O);
} else {
- printOp(MI->getOperand(OpNo));
+ printOp(MI->getOperand(OpNo), O);
O << "@h";
}
}
- void printSymbolLo(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- printS16ImmOperand(MI, OpNo);
+ void printSymbolLo(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ if (MI->getOperand(OpNo).isImm()) {
+ printS16ImmOperand(MI, OpNo, O);
} else {
- printOp(MI->getOperand(OpNo));
+ printOp(MI->getOperand(OpNo), O);
O << "@l";
}
}
/// Print local store address
- void printSymbolLSA(const MachineInstr *MI, unsigned OpNo) {
- printOp(MI->getOperand(OpNo));
+ void printSymbolLSA(const MachineInstr *MI, unsigned OpNo, raw_ostream &O) {
+ printOp(MI->getOperand(OpNo), O);
}
- void printROTHNeg7Imm(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
+ void printROTHNeg7Imm(const MachineInstr *MI, unsigned OpNo,
+ raw_ostream &O) {
+ if (MI->getOperand(OpNo).isImm()) {
int value = (int) MI->getOperand(OpNo).getImm();
assert((value >= 0 && value < 16)
&& "Invalid negated immediate rotate 7-bit argument");
O << -value;
} else {
- assert(0 &&"Invalid/non-immediate rotate amount in printRotateNeg7Imm");
- }
- }
-
- void printROTNeg7Imm(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
- int value = (int) MI->getOperand(OpNo).getImm();
- assert((value >= 0 && value < 32)
- && "Invalid negated immediate rotate 7-bit argument");
- O << -value;
- } else {
- assert(0 &&"Invalid/non-immediate rotate amount in printRotateNeg7Imm");
+ llvm_unreachable("Invalid/non-immediate rotate amount in printRotateNeg7Imm");
}
}
- virtual bool runOnMachineFunction(MachineFunction &F) = 0;
- virtual bool doFinalization(Module &M) = 0;
- };
-
- /// LinuxAsmPrinter - SPU assembly printer, customized for Linux
- struct VISIBILITY_HIDDEN LinuxAsmPrinter : public SPUAsmPrinter {
-
- DwarfWriter DW;
-
- LinuxAsmPrinter(std::ostream &O, SPUTargetMachine &TM,
- const TargetAsmInfo *T) :
- SPUAsmPrinter(O, TM, T),
- DW(O, this, T)
- { }
-
- virtual const char *getPassName() const {
- return "STI CBEA SPU Assembly Printer";
+ void printROTNeg7Imm(const MachineInstr *MI, unsigned OpNo, raw_ostream &O){
+ assert(MI->getOperand(OpNo).isImm() &&
+ "Invalid/non-immediate rotate amount in printRotateNeg7Imm");
+ int value = (int) MI->getOperand(OpNo).getImm();
+ assert((value >= 0 && value <= 32)
+ && "Invalid negated immediate rotate 7-bit argument");
+ O << -value;
}
-
- bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
-
- void getAnalysisUsage(AnalysisUsage &AU) const {
- AU.setPreservesAll();
- AU.addRequired<MachineModuleInfo>();
- SPUAsmPrinter::getAnalysisUsage(AU);
- }
-
- /// getSectionForFunction - Return the section that we should emit the
- /// specified function body into.
- virtual std::string getSectionForFunction(const Function &F) const;
};
} // end of anonymous namespace
// Include the auto-generated portion of the assembly writer
#include "SPUGenAsmWriter.inc"
-void SPUAsmPrinter::printOp(const MachineOperand &MO) {
+void SPUAsmPrinter::printOp(const MachineOperand &MO, raw_ostream &O) {
switch (MO.getType()) {
case MachineOperand::MO_Immediate:
- cerr << "printOp() does not handle immediate values\n";
- abort();
+ report_fatal_error("printOp() does not handle immediate values");
return;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ O << *MO.getMBB()->getSymbol();
return;
case MachineOperand::MO_JumpTableIndex:
- O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
+ O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << MO.getIndex();
return;
case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
+ O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
<< '_' << MO.getIndex();
return;
case MachineOperand::MO_ExternalSymbol:
// Computing the address of an external symbol, not calling it.
if (TM.getRelocationModel() != Reloc::Static) {
- std::string Name(TAI->getGlobalPrefix()); Name += MO.getSymbolName();
- GVStubs.insert(Name);
- O << "L" << Name << "$non_lazy_ptr";
+ O << "L" << MAI->getGlobalPrefix() << MO.getSymbolName()
+ << "$non_lazy_ptr";
return;
}
- O << TAI->getGlobalPrefix() << MO.getSymbolName();
+ O << *GetExternalSymbolSymbol(MO.getSymbolName());
return;
- case MachineOperand::MO_GlobalAddress: {
- // Computing the address of a global symbol, not calling it.
- GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getValueName(GV);
-
+ case MachineOperand::MO_GlobalAddress:
// External or weakly linked global variables need non-lazily-resolved
// stubs
if (TM.getRelocationModel() != Reloc::Static) {
+ const GlobalValue *GV = MO.getGlobal();
if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage()))) {
- GVStubs.insert(Name);
- O << "L" << Name << "$non_lazy_ptr";
+ GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
+ O << *GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr");
return;
}
}
- O << Name;
-
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
+ O << *Mang->getSymbol(MO.getGlobal());
+ return;
+ case MachineOperand::MO_MCSymbol:
+ O << *(MO.getMCSymbol());
return;
- }
-
default:
O << "<unknown operand type: " << MO.getType() << ">";
return;
/// PrintAsmOperand - Print out an operand for an inline asm expression.
///
bool SPUAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
- unsigned AsmVariant,
- const char *ExtraCode) {
+ unsigned AsmVariant,
+ const char *ExtraCode, raw_ostream &O) {
// Does this asm operand have a single letter operand modifier?
if (ExtraCode && ExtraCode[0]) {
if (ExtraCode[1] != 0) return true; // Unknown modifier.
-
+
switch (ExtraCode[0]) {
default: return true; // Unknown modifier.
- case 'L': // Write second word of DImode reference.
+ case 'L': // Write second word of DImode reference.
// Verify that this operand has two consecutive registers.
- if (!MI->getOperand(OpNo).isRegister() ||
+ if (!MI->getOperand(OpNo).isReg() ||
OpNo+1 == MI->getNumOperands() ||
- !MI->getOperand(OpNo+1).isRegister())
+ !MI->getOperand(OpNo+1).isReg())
return true;
++OpNo; // Return the high-part.
break;
}
}
-
- printOperand(MI, OpNo);
+
+ printOperand(MI, OpNo, O);
return false;
}
bool SPUAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
- unsigned OpNo,
- unsigned AsmVariant,
- const char *ExtraCode) {
+ unsigned OpNo, unsigned AsmVariant,
+ const char *ExtraCode,
+ raw_ostream &O) {
if (ExtraCode && ExtraCode[0])
return true; // Unknown modifier.
- printMemRegReg(MI, OpNo);
+ printMemRegReg(MI, OpNo, O);
return false;
}
-/// printMachineInstruction -- Print out a single PowerPC MI in Darwin syntax
-/// to the current output stream.
-///
-void SPUAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
- printInstruction(MI);
+// Force static initialization.
+extern "C" void LLVMInitializeCellSPUAsmPrinter() {
+ RegisterAsmPrinter<SPUAsmPrinter> X(TheCellSPUTarget);
}
-
-
-
-std::string LinuxAsmPrinter::getSectionForFunction(const Function &F) const {
- switch (F.getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::ExternalLinkage:
- case Function::InternalLinkage: return TAI->getTextSection();
- case Function::WeakLinkage:
- case Function::LinkOnceLinkage:
- return ""; // Print nothing for the time being...
- }
-}
-
-/// runOnMachineFunction - This uses the printMachineInstruction()
-/// method to print assembly for each instruction.
-///
-bool
-LinuxAsmPrinter::runOnMachineFunction(MachineFunction &MF)
-{
- DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
-
- SetupMachineFunction(MF);
- O << "\n\n";
-
- // Print out constants referenced by the function
- EmitConstantPool(MF.getConstantPool());
-
- // Print out labels for the function.
- const Function *F = MF.getFunction();
-
- SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
- EmitAlignment(3, F);
-
- switch (F->getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- break;
- case Function::ExternalLinkage:
- O << "\t.global\t" << CurrentFnName << "\n"
- << "\t.type\t" << CurrentFnName << ", @function\n";
- break;
- case Function::WeakLinkage:
- case Function::LinkOnceLinkage:
- O << "\t.global\t" << CurrentFnName << "\n";
- O << "\t.weak_definition\t" << CurrentFnName << "\n";
- break;
- }
- O << CurrentFnName << ":\n";
-
- // Emit pre-function debug information.
- DW.BeginFunction(&MF);
-
- // Print out code for the function.
- for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
- I != E; ++I) {
- // Print a label for the basic block.
- if (I != MF.begin()) {
- printBasicBlockLabel(I, true);
- O << '\n';
- }
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II) {
- // Print the assembly for the instruction.
- O << "\t";
- printMachineInstruction(II);
- }
- }
-
- O << "\t.size\t" << CurrentFnName << ",.-" << CurrentFnName << "\n";
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- // Emit post-function debug information.
- DW.EndFunction();
-
- // We didn't modify anything.
- return false;
-}
-
-
-bool LinuxAsmPrinter::doInitialization(Module &M) {
- bool Result = AsmPrinter::doInitialization(M);
- SwitchToTextSection(TAI->getTextSection());
- // Emit initial debug information.
- DW.BeginModule(&M);
- return Result;
-}
-
-bool LinuxAsmPrinter::doFinalization(Module &M) {
- const TargetData *TD = TM.getTargetData();
-
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I) {
- if (!I->hasInitializer()) continue; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(I))
- continue;
-
- std::string name = Mang->getValueName(I);
- Constant *C = I->getInitializer();
- unsigned Size = TD->getTypeStoreSize(C->getType());
- unsigned Align = TD->getPreferredAlignmentLog(I);
-
- if (C->isNullValue() && /* FIXME: Verify correct */
- (I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage() ||
- (I->hasExternalLinkage() && !I->hasSection()))) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
- if (I->hasExternalLinkage()) {
- // External linkage globals -> .bss section
- // FIXME: Want to set the global variable's section so that
- // SwitchToDataSection emits the ".section" directive
- SwitchToDataSection("\t.section\t.bss", I);
- O << "\t.global\t" << name << '\n';
- O << "\t.align\t" << Align << '\n';
- O << "\t.type\t" << name << ", @object\n";
- O << "\t.size\t" << name << ", " << Size << '\n';
- O << name << ":\n";
- O << "\t.zero\t" << Size;
- } else if (I->hasInternalLinkage()) {
- SwitchToDataSection("\t.data", I);
- O << ".local " << name << "\n";
- O << TAI->getCOMMDirective() << name << "," << Size << "," << Align << "\n";
- } else {
- SwitchToDataSection("\t.data", I);
- O << ".comm " << name << "," << Size;
- }
- O << "\t\t# '" << I->getName() << "'\n";
- } else {
- switch (I->getLinkage()) {
- case GlobalValue::LinkOnceLinkage:
- case GlobalValue::WeakLinkage:
- O << "\t.global " << name << '\n'
- << "\t.weak_definition " << name << '\n';
- SwitchToDataSection(".section __DATA,__datacoal_nt,coalesced", I);
- break;
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- case GlobalValue::ExternalLinkage:
- // If external or appending, declare as a global symbol
- O << "\t.global " << name << "\n";
- // FALL THROUGH
- case GlobalValue::InternalLinkage:
- if (I->isConstant()) {
- const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
- if (TAI->getCStringSection() && CVA && CVA->isCString()) {
- SwitchToDataSection(TAI->getCStringSection(), I);
- break;
- }
- }
-
- SwitchToDataSection("\t.data", I);
- break;
- default:
- cerr << "Unknown linkage type!";
- abort();
- }
-
- EmitAlignment(Align, I);
- O << name << ":\t\t\t\t# '" << I->getName() << "'\n";
-
- // If the initializer is a extern weak symbol, remember to emit the weak
- // reference!
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
-
- EmitGlobalConstant(C);
- O << '\n';
- }
- }
-
- // Output stubs for dynamically-linked functions
- if (TM.getRelocationModel() == Reloc::PIC_) {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
- i != e; ++i) {
- SwitchToTextSection(".section __TEXT,__picsymbolstub1,symbol_stubs,"
- "pure_instructions,32");
- EmitAlignment(4);
- O << "L" << *i << "$stub:\n";
- O << "\t.indirect_symbol " << *i << "\n";
- O << "\tmflr r0\n";
- O << "\tbcl 20,31,L0$" << *i << "\n";
- O << "L0$" << *i << ":\n";
- O << "\tmflr r11\n";
- O << "\taddis r11,r11,ha16(L" << *i << "$lazy_ptr-L0$" << *i << ")\n";
- O << "\tmtlr r0\n";
- O << "\tlwzu r12,lo16(L" << *i << "$lazy_ptr-L0$" << *i << ")(r11)\n";
- O << "\tmtctr r12\n";
- O << "\tbctr\n";
- SwitchToDataSection(".lazy_symbol_pointer");
- O << "L" << *i << "$lazy_ptr:\n";
- O << "\t.indirect_symbol " << *i << "\n";
- O << "\t.long dyld_stub_binding_helper\n";
- }
- } else {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
- i != e; ++i) {
- SwitchToTextSection(".section __TEXT,__symbol_stub1,symbol_stubs,"
- "pure_instructions,16");
- EmitAlignment(4);
- O << "L" << *i << "$stub:\n";
- O << "\t.indirect_symbol " << *i << "\n";
- O << "\tlis r11,ha16(L" << *i << "$lazy_ptr)\n";
- O << "\tlwzu r12,lo16(L" << *i << "$lazy_ptr)(r11)\n";
- O << "\tmtctr r12\n";
- O << "\tbctr\n";
- SwitchToDataSection(".lazy_symbol_pointer");
- O << "L" << *i << "$lazy_ptr:\n";
- O << "\t.indirect_symbol " << *i << "\n";
- O << "\t.long dyld_stub_binding_helper\n";
- }
- }
-
- O << "\n";
-
- // Output stubs for external and common global variables.
- if (GVStubs.begin() != GVStubs.end()) {
- SwitchToDataSection(".non_lazy_symbol_pointer");
- for (std::set<std::string>::iterator I = GVStubs.begin(),
- E = GVStubs.end(); I != E; ++I) {
- O << "L" << *I << "$non_lazy_ptr:\n";
- O << "\t.indirect_symbol " << *I << "\n";
- O << "\t.long\t0\n";
- }
- }
-
- // Emit initial debug information.
- DW.EndModule();
-
- // Emit ident information
- O << "\t.ident\t\"(llvm 2.2+) STI CBEA Cell SPU backend\"\n";
-
- return AsmPrinter::doFinalization(M);
-}
-
-
-
-/// createSPUCodePrinterPass - Returns a pass that prints the Cell SPU
-/// assembly code for a MachineFunction to the given output stream, in a format
-/// that the Linux SPU assembler can deal with.
-///
-FunctionPass *llvm::createSPUAsmPrinterPass(std::ostream &o,
- SPUTargetMachine &tm) {
- return new LinuxAsmPrinter(o, tm, tm.getTargetAsmInfo());
-}
-
projects / oota-llvm.git / blobdiff