#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
-#include "llvm/MDNode.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/DwarfWriter.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Target/TargetAsmInfo.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/raw_ostream.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetRegistry.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/MathExtras.h"
#include <cctype>
#include <cstring>
STATISTIC(EmittedInsts, "Number of machine instrs printed");
namespace {
- class VISIBILITY_HIDDEN SparcAsmPrinter : public AsmPrinter {
+ class SparcAsmPrinter : public AsmPrinter {
/// We name each basic block in a Function with a unique number, so
/// that we can consistently refer to them later. This is cleared
/// at the beginning of each call to runOnMachineFunction().
ValueMapTy NumberForBB;
unsigned BBNumber;
public:
- explicit SparcAsmPrinter(raw_ostream &O, TargetMachine &TM,
- const TargetAsmInfo *T, CodeGenOpt::Level OL,
- bool V)
- : AsmPrinter(O, TM, T, OL, V), BBNumber(0) {}
+ explicit SparcAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
+ const MCAsmInfo *T, bool V)
+ : AsmPrinter(O, TM, T, V), BBNumber(0) {}
virtual const char *getPassName() const {
return "Sparc Assembly Printer";
}
- void printModuleLevelGV(const GlobalVariable* GVar);
void printOperand(const MachineInstr *MI, int opNum);
void printMemOperand(const MachineInstr *MI, int opNum,
const char *Modifier = 0);
void printCCOperand(const MachineInstr *MI, int opNum);
- bool printInstruction(const MachineInstr *MI); // autogenerated.
+ void printInstruction(const MachineInstr *MI); // autogenerated.
+ static const char *getRegisterName(unsigned RegNo);
+
bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode);
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant, const char *ExtraCode);
+
+ void emitFunctionHeader(const MachineFunction &MF);
+ bool printGetPCX(const MachineInstr *MI, unsigned OpNo);
};
} // end of anonymous namespace
#include "SparcGenAsmWriter.inc"
-/// createSparcCodePrinterPass - Returns a pass that prints the SPARC
-/// assembly code for a MachineFunction to the given output stream,
-/// using the given target machine description. This should work
-/// regardless of whether the function is in SSA form.
-///
-FunctionPass *llvm::createSparcCodePrinterPass(raw_ostream &o,
- TargetMachine &tm,
- CodeGenOpt::Level OptLevel,
- bool verbose) {
- return new SparcAsmPrinter(o, tm, tm.getTargetAsmInfo(), OptLevel, verbose);
-}
-
-
/// runOnMachineFunction - This uses the printInstruction()
/// method to print assembly for each instruction.
///
bool SparcAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- this->MF = &MF;
-
SetupMachineFunction(MF);
// Print out constants referenced by the function
// BBs the same name. (If you have a better way, please let me know!)
O << "\n\n";
-
- // Print out the label for the function.
- const Function *F = MF.getFunction();
- SwitchToSection(TAI->SectionForGlobal(F));
- EmitAlignment(MF.getAlignment(), F);
- O << "\t.globl\t" << CurrentFnName << '\n';
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- O << "\t.type\t" << CurrentFnName << ", #function\n";
- O << CurrentFnName << ":\n";
+ emitFunctionHeader(MF);
+
+
+ // Emit pre-function debug information.
+ DW->BeginFunction(&MF);
// Number each basic block so that we can consistently refer to them
// in PC-relative references.
I != E; ++I) {
// Print a label for the basic block.
if (I != MF.begin()) {
- printBasicBlockLabel(I, true, true);
- O << '\n';
+ EmitBasicBlockStart(I);
}
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
// Print the assembly for the instruction.
+ processDebugLoc(II, true);
printInstruction(II);
+
+ if (VerboseAsm)
+ EmitComments(*II);
+ O << '\n';
+ processDebugLoc(II, false);
++EmittedInsts;
}
}
+ // Emit post-function debug information.
+ DW->EndFunction(&MF);
+
// We didn't modify anything.
+ O << "\t.size\t" << *CurrentFnSym << ", .-" << *CurrentFnSym << '\n';
return false;
}
+void SparcAsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
+ const Function *F = MF.getFunction();
+ OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
+ EmitAlignment(MF.getAlignment(), F);
+
+ switch (F->getLinkage()) {
+ default: llvm_unreachable("Unknown linkage type");
+ case Function::PrivateLinkage:
+ case Function::InternalLinkage:
+ // Function is internal.
+ break;
+ case Function::DLLExportLinkage:
+ case Function::ExternalLinkage:
+ // Function is externally visible
+ O << "\t.global\t" << *CurrentFnSym << '\n';
+ break;
+ case Function::LinkerPrivateLinkage:
+ case Function::LinkOnceAnyLinkage:
+ case Function::LinkOnceODRLinkage:
+ case Function::WeakAnyLinkage:
+ case Function::WeakODRLinkage:
+ // Function is weak
+ O << "\t.weak\t" << *CurrentFnSym << '\n';
+ break;
+ }
+
+ printVisibility(CurrentFnSym, F->getVisibility());
+
+ O << "\t.type\t" << *CurrentFnSym << ", #function\n";
+ O << *CurrentFnSym << ":\n";
+}
+
+
void SparcAsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand (opNum);
- const TargetRegisterInfo &RI = *TM.getRegisterInfo();
bool CloseParen = false;
if (MI->getOpcode() == SP::SETHIi && !MO.isReg() && !MO.isImm()) {
O << "%hi(";
}
switch (MO.getType()) {
case MachineOperand::MO_Register:
- if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
- O << "%" << LowercaseString (RI.get(MO.getReg()).AsmName);
- else
- O << "%reg" << MO.getReg();
+ O << "%" << LowercaseString(getRegisterName(MO.getReg()));
break;
case MachineOperand::MO_Immediate:
O << (int)MO.getImm();
break;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress:
- {
- const GlobalValue *GV = MO.getGlobal();
- O << Mang->getValueName(GV);
- }
+ O << *GetGlobalValueSymbol(MO.getGlobal());
break;
case MachineOperand::MO_ExternalSymbol:
O << MO.getSymbolName();
break;
case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
+ O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << "_"
<< MO.getIndex();
break;
default:
- O << "<unknown operand type>"; abort (); break;
+ llvm_unreachable("<unknown operand type>");
}
if (CloseParen) O << ")";
}
}
}
-void SparcAsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
- int CC = (int)MI->getOperand(opNum).getImm();
- O << SPARCCondCodeToString((SPCC::CondCodes)CC);
-}
+bool SparcAsmPrinter::printGetPCX(const MachineInstr *MI, unsigned opNum) {
+ std::string operand = "";
+ const MachineOperand &MO = MI->getOperand(opNum);
+ switch (MO.getType()) {
+ default: assert(0 && "Operand is not a register ");
+ case MachineOperand::MO_Register:
+ assert(TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
+ "Operand is not a physical register ");
+ operand = "%" + LowercaseString(getRegisterName(MO.getReg()));
+ break;
+ }
-bool SparcAsmPrinter::doInitialization(Module &M) {
- Mang = new Mangler(M, "", TAI->getPrivateGlobalPrefix());
- return false; // success
-}
+ unsigned bbNum = NumberForBB[MI->getParent()->getBasicBlock()];
-bool SparcAsmPrinter::doFinalization(Module &M) {
- // Print out module-level global variables here.
- for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
- I != E; ++I)
- printModuleLevelGV(I);
+ O << '\n' << ".LLGETPCH" << bbNum << ":\n";
+ O << "\tcall\t.LLGETPC" << bbNum << '\n' ;
- O << '\n';
+ O << "\t sethi\t"
+ << "%hi(_GLOBAL_OFFSET_TABLE_+(.-.LLGETPCH" << bbNum << ")), "
+ << operand << '\n' ;
- return AsmPrinter::doFinalization(M);
+ O << ".LLGETPC" << bbNum << ":\n" ;
+ O << "\tor\t" << operand
+ << ", %lo(_GLOBAL_OFFSET_TABLE_+(.-.LLGETPCH" << bbNum << ")), "
+ << operand << '\n';
+ O << "\tadd\t" << operand << ", %o7, " << operand << '\n';
+
+ return true;
}
-void SparcAsmPrinter::printModuleLevelGV(const GlobalVariable* GVar) {
- const TargetData *TD = TM.getTargetData();
-
- if (!GVar->hasInitializer())
- return; // External global require no code
-
- // Check to see if this is a special global used by LLVM, if so, emit it.
- if (EmitSpecialLLVMGlobal(GVar))
- return;
-
- O << "\n\n";
- std::string name = Mang->getValueName(GVar);
- Constant *C = GVar->getInitializer();
- if (isa<MDNode>(C) || isa<MDString>(C))
- return;
- unsigned Size = TD->getTypeAllocSize(C->getType());
- unsigned Align = TD->getPreferredAlignment(GVar);
-
- printVisibility(name, GVar->getVisibility());
-
- SwitchToSection(TAI->SectionForGlobal(GVar));
-
- if (C->isNullValue() && !GVar->hasSection()) {
- if (!GVar->isThreadLocal() &&
- (GVar->hasLocalLinkage() || GVar->isWeakForLinker())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (GVar->hasLocalLinkage())
- O << "\t.local " << name << '\n';
-
- O << TAI->getCOMMDirective() << name << ',' << Size;
- if (TAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (1 << Align);
-
- O << '\n';
- return;
- }
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::CommonLinkage:
- case GlobalValue::LinkOnceAnyLinkage:
- case GlobalValue::LinkOnceODRLinkage:
- case GlobalValue::WeakAnyLinkage: // FIXME: Verify correct for weak.
- case GlobalValue::WeakODRLinkage: // FIXME: Verify correct for weak.
- // Nonnull linkonce -> weak
- O << "\t.weak " << name << '\n';
- 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 << TAI->getGlobalDirective() << name << '\n';
- // FALL THROUGH
- case GlobalValue::PrivateLinkage:
- case GlobalValue::InternalLinkage:
- break;
- case GlobalValue::GhostLinkage:
- cerr << "Should not have any unmaterialized functions!\n";
- abort();
- case GlobalValue::DLLImportLinkage:
- cerr << "DLLImport linkage is not supported by this target!\n";
- abort();
- case GlobalValue::DLLExportLinkage:
- cerr << "DLLExport linkage is not supported by this target!\n";
- abort();
- default:
- assert(0 && "Unknown linkage type!");
- }
-
- EmitAlignment(Align, GVar);
-
- if (TAI->hasDotTypeDotSizeDirective()) {
- O << "\t.type " << name << ",#object\n";
- O << "\t.size " << name << ',' << Size << '\n';
- }
-
- O << name << ":\n";
- EmitGlobalConstant(C);
+void SparcAsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
+ int CC = (int)MI->getOperand(opNum).getImm();
+ O << SPARCCondCodeToString((SPCC::CondCodes)CC);
}
/// PrintAsmOperand - Print out an operand for an inline asm expression.
return false;
}
-namespace {
- static struct Register {
- Register() {
- SparcTargetMachine::registerAsmPrinter(createSparcCodePrinterPass);
- }
- } Registrator;
-}
-
// Force static initialization.
-extern "C" void LLVMInitializeSparcAsmPrinter() { }
+extern "C" void LLVMInitializeSparcAsmPrinter() {
+ RegisterAsmPrinter<SparcAsmPrinter> X(TheSparcTarget);
+}
projects / oota-llvm.git / blobdiff