namespace {
Statistic<> EmittedInsts("asm-printer", "Number of machine instrs printed");
- struct PPCAsmPrinter : public AsmPrinter {
+ class PPCAsmPrinter : public AsmPrinter {
+ std::string CurSection;
+ public:
std::set<std::string> FnStubs, GVStubs, LinkOnceStubs;
-
+
PPCAsmPrinter(std::ostream &O, TargetMachine &TM)
: AsmPrinter(O, TM), FunctionNumber(0) {}
return static_cast<PPCTargetMachine&>(TM);
}
+ /// SwitchSection - Switch to the specified section of the executable if we
+ /// are not already in it!
+ ///
+ void SwitchSection(const char *NewSection, const GlobalValue *GV) {
+ std::string NS;
+
+ if (GV && GV->hasSection())
+ NS = ".section " + GV->getSection();
+ else
+ NS = NewSection;
+
+ if (CurSection != NS) {
+ CurSection = NS;
+ if (!CurSection.empty())
+ O << "\t" << CurSection << "\n";
+ }
+ }
+
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 << "$+" << MI->getOperand(OpNo).getImmedValue();
} else {
- printOp(MI->getOperand(OpNo),
- TM.getInstrInfo()->isCall(MI->getOpcode()));
+ printOp(MI->getOperand(OpNo));
+ }
+ }
+ void printCallOperand(const MachineInstr *MI, unsigned OpNo,
+ MVT::ValueType VT) {
+ const MachineOperand &MO = MI->getOperand(OpNo);
+ if (MO.getType() == MachineOperand::MO_ExternalSymbol) {
+ std::string Name(GlobalPrefix); Name += MO.getSymbolName();
+ FnStubs.insert(Name);
+ O << "L" << Name << "$stub";
+ } 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 << "$stub";
+ } else {
+ printOp(MI->getOperand(OpNo));
}
}
+ void printAbsAddrOperand(const MachineInstr *MI, unsigned OpNo,
+ MVT::ValueType VT) {
+ O << (int)MI->getOperand(OpNo).getImmedValue()*4;
+ }
void printPICLabel(const MachineInstr *MI, unsigned OpNo,
MVT::ValueType VT) {
// FIXME: should probably be converted to cout.width and cout.fill
};
} // end of anonymous namespace
-// SwitchSection - Switch to the specified section of the executable if we are
-// not already in it!
-//
-static void SwitchSection(std::ostream &OS, std::string &CurSection,
- const char *NewSection) {
- if (CurSection != NewSection) {
- CurSection = NewSection;
- if (!CurSection.empty())
- OS << "\t" << NewSection << "\n";
- }
-}
-
/// createDarwinAsmPrinterPass - Returns a pass that prints the PPC assembly
/// code for a MachineFunction to the given output stream, in a format that the
/// Darwin assembler can deal with.
// Include the auto-generated portion of the assembly writer
#include "PPCGenAsmWriter.inc"
-void PPCAsmPrinter::printOp(const MachineOperand &MO, bool IsCallOp) {
+void PPCAsmPrinter::printOp(const MachineOperand &MO) {
const MRegisterInfo &RI = *TM.getRegisterInfo();
int new_symbol;
return;
case MachineOperand::MO_ExternalSymbol:
- if (IsCallOp) {
- std::string Name(GlobalPrefix); Name += MO.getSymbolName();
- FnStubs.insert(Name);
- O << "L" << Name << "$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 (GV->hasLinkOnceLinkage())
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";
if (CP.empty()) return;
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
- O << "\t.const\n";
+ SwitchSection(".const", 0);
// FIXME: force doubles to be naturally aligned. We should handle this
// more correctly in the future.
if (Type::DoubleTy == CP[i]->getType())
bool DarwinAsmPrinter::doInitialization(Module &M) {
if (TM.getSubtarget<PPCSubtarget>().isGigaProcessor())
O << "\t.machine ppc970\n";
+ SwitchSection("", 0);
AsmPrinter::doInitialization(M);
// Darwin wants symbols to be quoted if they have complex names.
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);
}
if (CP.empty()) return;
for (unsigned i = 0, e = CP.size(); i != e; ++i) {
- O << "\t.const\n";
+ SwitchSection(".const", 0);
O << "\t.align " << (unsigned)TD.getTypeAlignment(CP[i]->getType())
<< "\n";
O << "LCPI" << FunctionNumber << '_' << i << ":\t\t\t\t\t;"
}
bool AIXAsmPrinter::doInitialization(Module &M) {
+ SwitchSection("", 0);
const TargetData &TD = TM.getTargetData();
- std::string CurSection;
O << "\t.machine \"ppc64\"\n"
<< "\t.toc\n"
projects / oota-llvm.git / blobdiff