namespace {
Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
- struct PPCAsmPrinter : public AsmPrinter {
+ class PPCAsmPrinter : public AsmPrinter {
+ public:
std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
-
+
PPCAsmPrinter(std::ostream &O, TargetMachine &TM)
- : AsmPrinter(O, TM), LabelNumber(0) {}
+ : AsmPrinter(O, TM), FunctionNumber(0) {}
/// Unique incrementer for label values for referencing Global values.
///
- unsigned LabelNumber;
+ unsigned FunctionNumber;
virtual const char *getPassName() const {
return "PowerPC Assembly Printer";
return static_cast<PPCTargetMachine&>(TM);
}
+ void printConstantPool(MachineConstantPool *MCP);
+
unsigned enumRegToMachineReg(unsigned enumReg) {
switch (enumReg) {
default: assert(0 && "Unhandled register!"); break;
bool printInstruction(const MachineInstr *MI);
void printMachineInstruction(const MachineInstr *MI);
- void printOp(const MachineOperand &MO, bool IsCallOp = false);
+ void printOp(const MachineOperand &MO);
void printOperand(const MachineInstr *MI, unsigned OpNo, MVT::ValueType VT){
const MachineOperand &MO = MI->getOperand(OpNo);
if (MI->getOperand(OpNo).isImmediate()) {
O << "$+" << MI->getOperand(OpNo).getImmedValue();
} else {
- printOp(MI->getOperand(OpNo),
- TM.getInstrInfo()->isCall(MI->getOpcode()));
+ printOp(MI->getOperand(OpNo));
}
}
+ void printCallOperand(const MachineInstr *MI, unsigned OpNo,
+ MVT::ValueType VT) {
+ const MachineOperand &MO = MI->getOperand(OpNo);
+ if (!PPCGenerateStaticCode) {
+ if (MO.getType() == MachineOperand::MO_ExternalSymbol) {
+ std::string Name(GlobalPrefix); Name += MO.getSymbolName();
+ FnStubs.insert(Name);
+ O << "L" << Name << "$stub";
+ return;
+ } else if (MO.getType() == MachineOperand::MO_GlobalAddress &&
+ isa<Function>(MO.getGlobal()) &&
+ cast<Function>(MO.getGlobal())->isExternal()) {
+ // Dynamically-resolved functions need a stub for the function.
+ std::string Name = Mang->getValueName(MO.getGlobal());
+ FnStubs.insert(Name);
+ O << "L" << Name << "$stub";
+ return;
+ }
+ }
+
+ printOp(MI->getOperand(OpNo));
+ }
+ void printAbsAddrOperand(const MachineInstr *MI, unsigned OpNo,
+ MVT::ValueType VT) {
+ O << (int)MI->getOperand(OpNo).getImmedValue()*4;
+ }
void printPICLabel(const MachineInstr *MI, unsigned OpNo,
MVT::ValueType VT) {
// FIXME: should probably be converted to cout.width and cout.fill
- O << "\"L0000" << LabelNumber << "$pb\"\n";
- O << "\"L0000" << LabelNumber << "$pb\":";
+ O << "\"L0000" << FunctionNumber << "$pb\"\n";
+ O << "\"L0000" << FunctionNumber << "$pb\":";
}
void printSymbolHi(const MachineInstr *MI, unsigned OpNo,
MVT::ValueType VT) {
O << "ha16(";
printOp(MI->getOperand(OpNo));
if (PICEnabled)
- O << "-\"L0000" << LabelNumber << "$pb\")";
+ O << "-\"L0000" << FunctionNumber << "$pb\")";
else
O << ')';
}
O << "lo16(";
printOp(MI->getOperand(OpNo));
if (PICEnabled)
- O << "-\"L0000" << LabelNumber << "$pb\")";
+ O << "-\"L0000" << FunctionNumber << "$pb\")";
else
O << ')';
}
O << (0x80 >> RegNo);
}
- virtual void printConstantPool(MachineConstantPool *MCP) = 0;
virtual bool runOnMachineFunction(MachineFunction &F) = 0;
virtual bool doFinalization(Module &M) = 0;
};
: PPCAsmPrinter(O, TM) {
CommentString = ";";
GlobalPrefix = "_";
+ PrivateGlobalPrefix = "L"; // Marker for constant pool idxs
ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
Data64bitsDirective = 0; // we can't emit a 64-bit unit
AlignmentIsInBytes = false; // Alignment is by power of 2.
return "Darwin PPC Assembly Printer";
}
- void printConstantPool(MachineConstantPool *MCP);
bool runOnMachineFunction(MachineFunction &F);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
return "AIX PPC Assembly Printer";
}
- void printConstantPool(MachineConstantPool *MCP);
bool runOnMachineFunction(MachineFunction &F);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
};
} // end of anonymous namespace
-// SwitchSection - Switch to the specified section of the executable if we are
-// not already in it!
-//
-static void SwitchSection(std::ostream &OS, std::string &CurSection,
- const char *NewSection) {
- if (CurSection != NewSection) {
- CurSection = NewSection;
- if (!CurSection.empty())
- OS << "\t" << NewSection << "\n";
- }
-}
-
/// createDarwinAsmPrinterPass - Returns a pass that prints the PPC assembly
/// code for a MachineFunction to the given output stream, in a format that the
/// Darwin assembler can deal with.
// Include the auto-generated portion of the assembly writer
#include "PPCGenAsmWriter.inc"
-void PPCAsmPrinter::printOp(const MachineOperand &MO, bool IsCallOp) {
+void PPCAsmPrinter::printOp(const MachineOperand &MO) {
const MRegisterInfo &RI = *TM.getRegisterInfo();
int new_symbol;
case MachineOperand::MO_MachineBasicBlock: {
MachineBasicBlock *MBBOp = MO.getMachineBasicBlock();
- O << "LBB" << Mang->getValueName(MBBOp->getParent()->getFunction())
- << "_" << MBBOp->getNumber() << "\t; "
- << MBBOp->getBasicBlock()->getName();
+ O << PrivateGlobalPrefix << "BB" << FunctionNumber << "_"
+ << MBBOp->getNumber() << "\t; " << MBBOp->getBasicBlock()->getName();
return;
}
case MachineOperand::MO_ConstantPoolIndex:
- O << "LCPI" << CurrentFnName << "_" << MO.getConstantPoolIndex();
+ O << PrivateGlobalPrefix << "CPI" << FunctionNumber
+ << '_' << MO.getConstantPoolIndex();
return;
case MachineOperand::MO_ExternalSymbol:
- if (IsCallOp) {
- std::string Name(GlobalPrefix); Name += MO.getSymbolName();
- FnStubs.insert(Name);
- O << "L" << Name << "$stub";
- return;
- }
O << GlobalPrefix << MO.getSymbolName();
return;
GlobalValue *GV = MO.getGlobal();
std::string Name = Mang->getValueName(GV);
- // Dynamically-resolved functions need a stub for the function. Be
- // wary however not to output $stub for external functions whose addresses
- // are taken. Those should be emitted as $non_lazy_ptr below.
- Function *F = dyn_cast<Function>(GV);
- if (F && IsCallOp && F->isExternal()) {
- FnStubs.insert(Name);
- O << "L" << Name << "$stub";
- return;
- }
-
// External or weakly linked global variables need non-lazily-resolved stubs
- if ((GV->isExternal() || GV->hasWeakLinkage() || GV->hasLinkOnceLinkage())){
+ if (!PPCGenerateStaticCode &&
+ ((GV->isExternal() || GV->hasWeakLinkage() ||
+ GV->hasLinkOnceLinkage()))) {
if (GV->hasLinkOnceLinkage())
LinkOnceStubs.insert(Name);
else
return;
}
- O << Mang->getValueName(GV);
+ O << Name;
return;
}
return;
}
+/// printConstantPool - Print to the current output stream assembly
+/// representations of the constants in the constant pool MCP. This is
+/// used to print out constants which have been "spilled to memory" by
+/// the code generator.
+///
+void PPCAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
+ const std::vector<Constant*> &CP = MCP->getConstants();
+ const TargetData &TD = TM.getTargetData();
+
+ if (CP.empty()) return;
+
+ SwitchSection(".const", 0);
+ for (unsigned i = 0, e = CP.size(); i != e; ++i) {
+ // FIXME: force doubles to be naturally aligned. We should handle this
+ // more correctly in the future.
+ unsigned Alignment = TD.getTypeAlignmentShift(CP[i]->getType());
+ if (CP[i]->getType() == Type::DoubleTy && Alignment < 3) Alignment = 3;
+
+ EmitAlignment(Alignment);
+ O << PrivateGlobalPrefix << "CPI" << FunctionNumber << '_' << i
+ << ":\t\t\t\t\t" << CommentString << *CP[i] << '\n';
+ EmitGlobalConstant(CP[i]);
+ }
+}
+
+
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
///
bool DarwinAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- setupMachineFunction(MF);
+ SetupMachineFunction(MF);
O << "\n\n";
// Print out constants referenced by the function
printConstantPool(MF.getConstantPool());
// Print out labels for the function.
- O << "\t.text\n";
- emitAlignment(4);
- if (!MF.getFunction()->hasInternalLinkage())
+ const Function *F = MF.getFunction();
+ SwitchSection(".text", F);
+ EmitAlignment(4, F);
+ if (!F->hasInternalLinkage())
O << "\t.globl\t" << CurrentFnName << "\n";
O << CurrentFnName << ":\n";
I != E; ++I) {
// Print a label for the basic block.
if (I != MF.begin()) {
- O << "LBB" << CurrentFnName << "_" << I->getNumber() << ":\t";
+ O << PrivateGlobalPrefix << "BB" << FunctionNumber << '_'
+ << I->getNumber() << ":\t";
if (!I->getBasicBlock()->getName().empty())
O << CommentString << " " << I->getBasicBlock()->getName();
O << "\n";
printMachineInstruction(II);
}
}
- ++LabelNumber;
+ ++FunctionNumber;
// We didn't modify anything.
return false;
}
-/// printConstantPool - Print to the current output stream assembly
-/// representations of the constants in the constant pool MCP. This is
-/// used to print out constants which have been "spilled to memory" by
-/// the code generator.
-///
-void DarwinAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
- const std::vector<Constant*> &CP = MCP->getConstants();
- const TargetData &TD = TM.getTargetData();
-
- if (CP.empty()) return;
-
- for (unsigned i = 0, e = CP.size(); i != e; ++i) {
- O << "\t.const\n";
- // FIXME: force doubles to be naturally aligned. We should handle this
- // more correctly in the future.
- if (Type::DoubleTy == CP[i]->getType())
- emitAlignment(3);
- else
- emitAlignment(TD.getTypeAlignmentShift(CP[i]->getType()));
- O << "LCPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t" << CommentString
- << *CP[i] << "\n";
- emitGlobalConstant(CP[i]);
- }
-}
bool DarwinAsmPrinter::doInitialization(Module &M) {
if (TM.getSubtarget<PPCSubtarget>().isGigaProcessor())
O << "\t.machine ppc970\n";
AsmPrinter::doInitialization(M);
+
+ // Darwin wants symbols to be quoted if they have complex names.
+ Mang->setUseQuotes(true);
return false;
}
bool DarwinAsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData();
- std::string CurSection;
// Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end(); I != E; ++I)
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I)
if (I->hasInitializer()) { // External global require no code
O << '\n';
std::string name = Mang->getValueName(I);
if (C->isNullValue() && /* FIXME: Verify correct */
(I->hasInternalLinkage() || I->hasWeakLinkage() ||
I->hasLinkOnceLinkage())) {
- SwitchSection(O, CurSection, ".data");
+ SwitchSection(".data", I);
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (I->hasInternalLinkage())
O << ".lcomm " << name << "," << Size << "," << Align;
} else {
switch (I->getLinkage()) {
case GlobalValue::LinkOnceLinkage:
+ SwitchSection("", 0);
O << ".section __TEXT,__textcoal_nt,coalesced,no_toc\n"
<< ".weak_definition " << name << '\n'
<< ".private_extern " << name << '\n'
O << "\t.globl " << name << "\n";
// FALL THROUGH
case GlobalValue::InternalLinkage:
- SwitchSection(O, CurSection, ".data");
+ SwitchSection(".data", I);
break;
- case GlobalValue::GhostLinkage:
- std::cerr << "Error: unmaterialized (GhostLinkage) function in asm!";
+ default:
+ std::cerr << "Unknown linkage type!";
abort();
}
- emitAlignment(Align);
+ EmitAlignment(Align, I);
O << name << ":\t\t\t\t; '" << I->getName() << "'\n";
- emitGlobalConstant(C);
+ EmitGlobalConstant(C);
}
}
if (PICEnabled) {
O << ".data\n";
O << ".section __TEXT,__picsymbolstub1,symbol_stubs,pure_instructions,32\n";
- emitAlignment(2);
+ EmitAlignment(2);
O << "L" << *i << "$stub:\n";
O << "\t.indirect_symbol " << *i << "\n";
O << "\tmflr r0\n";
O << "\t.long dyld_stub_binding_helper\n";
} else {
O << "\t.section __TEXT,__symbol_stub1,symbol_stubs,pure_instructions,16\n";
- emitAlignment(4);
+ EmitAlignment(4);
O << "L" << *i << "$stub:\n";
O << "\t.indirect_symbol " << *i << "\n";
O << "\tlis r11,ha16(L" << *i << "$lazy_ptr)\n";
/// method to print assembly for each instruction.
///
bool AIXAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- CurrentFnName = MF.getFunction()->getName();
+ SetupMachineFunction(MF);
// Print out constants referenced by the function
printConstantPool(MF.getConstantPool());
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
I != E; ++I) {
// Print a label for the basic block.
- O << "LBB" << CurrentFnName << "_" << I->getNumber() << ":\t# "
- << I->getBasicBlock()->getName() << "\n";
+ O << PrivateGlobalPrefix << "BB" << FunctionNumber << '_' << I->getNumber()
+ << ":\t" << CommentString << I->getBasicBlock()->getName() << '\n';
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
// Print the assembly for the instruction.
printMachineInstruction(II);
}
}
- ++LabelNumber;
+ ++FunctionNumber;
O << "LT.." << CurrentFnName << ":\n"
<< "\t.long 0\n"
return false;
}
-/// printConstantPool - Print to the current output stream assembly
-/// representations of the constants in the constant pool MCP. This is
-/// used to print out constants which have been "spilled to memory" by
-/// the code generator.
-///
-void AIXAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
- const std::vector<Constant*> &CP = MCP->getConstants();
- const TargetData &TD = TM.getTargetData();
-
- if (CP.empty()) return;
-
- for (unsigned i = 0, e = CP.size(); i != e; ++i) {
- O << "\t.const\n";
- O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType())
- << "\n";
- O << "LCPI" << CurrentFnName << "_" << i << ":\t\t\t\t\t;"
- << *CP[i] << "\n";
- emitGlobalConstant(CP[i]);
- }
-}
-
bool AIXAsmPrinter::doInitialization(Module &M) {
+ SwitchSection("", 0);
const TargetData &TD = TM.getTargetData();
- std::string CurSection;
O << "\t.machine \"ppc64\"\n"
<< "\t.toc\n"
O << "\t.csect _global.rw_c[RW],3\n";
}
O << Name << ":\n";
- emitGlobalConstant(C);
+ EmitGlobalConstant(C);
}
// Output labels for globals
continue;
std::string Name = GV->getName();
- std::string Label = "LC.." + utostr(LabelNumber++);
+ std::string Label = "LC.." + utostr(FunctionNumber++);
GVToLabelMap[GV] = Label;
O << Label << ":\n"
<< "\t.tc " << Name << "[TC]," << Name;
O << "\t.comm " << Name << "," << TD.getTypeSize(I->getType())
<< "," << Log2_32((unsigned)TD.getTypeAlignment(I->getType()));
}
- O << "\t\t# ";
+ O << "\t\t" << CommentString << " ";
WriteAsOperand(O, I, false, true, &M);
O << "\n";
}
projects / oota-llvm.git / blobdiff