#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineConstantPool.h"
-#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCSymbol.h"
+#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetRegistry.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Mangler.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
namespace {
class SystemZAsmPrinter : public AsmPrinter {
public:
- SystemZAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
- const MCAsmInfo *MAI, bool V)
- : AsmPrinter(O, TM, MAI, V) {}
+ SystemZAsmPrinter(TargetMachine &TM, MCStreamer &Streamer)
+ : AsmPrinter(TM, Streamer) {}
virtual const char *getPassName() const {
return "SystemZ Assembly Printer";
}
- void printOperand(const MachineInstr *MI, int OpNum,
+ void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O,
const char* Modifier = 0);
- void printPCRelImmOperand(const MachineInstr *MI, int OpNum);
- void printRIAddrOperand(const MachineInstr *MI, int OpNum,
+ void printPCRelImmOperand(const MachineInstr *MI, int OpNum, raw_ostream &O);
+ void printRIAddrOperand(const MachineInstr *MI, int OpNum, raw_ostream &O,
const char* Modifier = 0);
- void printRRIAddrOperand(const MachineInstr *MI, int OpNum,
+ void printRRIAddrOperand(const MachineInstr *MI, int OpNum, raw_ostream &O,
const char* Modifier = 0);
- void printS16ImmOperand(const MachineInstr *MI, int OpNum) {
+ void printS16ImmOperand(const MachineInstr *MI, int OpNum, raw_ostream &O) {
O << (int16_t)MI->getOperand(OpNum).getImm();
}
- void printS32ImmOperand(const MachineInstr *MI, int OpNum) {
+ void printS32ImmOperand(const MachineInstr *MI, int OpNum, raw_ostream &O) {
O << (int32_t)MI->getOperand(OpNum).getImm();
}
- void printInstruction(const MachineInstr *MI); // autogenerated.
+ void printInstruction(const MachineInstr *MI, raw_ostream &O);
static const char *getRegisterName(unsigned RegNo);
- void printMachineInstruction(const MachineInstr * MI);
-
- void emitFunctionHeader(const MachineFunction &MF);
- bool runOnMachineFunction(MachineFunction &F);
- void PrintGlobalVariable(const GlobalVariable* GVar);
-
- void getAnalysisUsage(AnalysisUsage &AU) const {
- AsmPrinter::getAnalysisUsage(AU);
- AU.setPreservesAll();
- }
+ void EmitInstruction(const MachineInstr *MI);
};
} // end of anonymous namespace
#include "SystemZGenAsmWriter.inc"
-void SystemZAsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
- unsigned FnAlign = MF.getAlignment();
- const Function *F = MF.getFunction();
-
- OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
-
- EmitAlignment(FnAlign, F);
-
- switch (F->getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- case Function::PrivateLinkage:
- case Function::LinkerPrivateLinkage:
- break;
- case Function::ExternalLinkage:
- O << "\t.globl\t";
- CurrentFnSym->print(O, MAI);
- O << '\n';
- break;
- case Function::LinkOnceAnyLinkage:
- case Function::LinkOnceODRLinkage:
- case Function::WeakAnyLinkage:
- case Function::WeakODRLinkage:
- O << "\t.weak\t";
- CurrentFnSym->print(O, MAI);
- O << '\n';
- break;
- }
-
- printVisibility(CurrentFnSym, F->getVisibility());
-
- O << "\t.type\t";
- CurrentFnSym->print(O, MAI);
- O << ",@function\n";
- CurrentFnSym->print(O, MAI);
- O << ":\n";
+void SystemZAsmPrinter::EmitInstruction(const MachineInstr *MI) {
+ SmallString<128> Str;
+ raw_svector_ostream OS(Str);
+ printInstruction(MI, OS);
+ OutStreamer.EmitRawText(OS.str());
}
-bool SystemZAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- SetupMachineFunction(MF);
- O << "\n\n";
-
- // Print out constants referenced by the function
- EmitConstantPool(MF.getConstantPool());
-
- // Print the 'header' of function
- emitFunctionHeader(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.
- EmitBasicBlockStart(I);
-
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II)
- // Print the assembly for the instruction.
- printMachineInstruction(II);
- }
-
- if (MAI->hasDotTypeDotSizeDirective()) {
- O << "\t.size\t";
- CurrentFnSym->print(O, MAI);
- O << ", .-";
- CurrentFnSym->print(O, MAI);
- O << '\n';
- }
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- // We didn't modify anything
- return false;
-}
-
-void SystemZAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
- processDebugLoc(MI, true);
-
- // Call the autogenerated instruction printer routines.
- printInstruction(MI);
-
- if (VerboseAsm)
- EmitComments(*MI);
- O << '\n';
-
- processDebugLoc(MI, false);
-}
-
-void SystemZAsmPrinter::printPCRelImmOperand(const MachineInstr *MI, int OpNum){
+void SystemZAsmPrinter::printPCRelImmOperand(const MachineInstr *MI, int OpNum,
+ raw_ostream &O) {
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
case MachineOperand::MO_Immediate:
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
+ O << *MO.getMBB()->getSymbol();
return;
case MachineOperand::MO_GlobalAddress: {
const GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getMangledName(GV);
-
- O << Name;
+ O << *Mang->getSymbol(GV);
// Assemble calls via PLT for externally visible symbols if PIC.
if (TM.getRelocationModel() == Reloc::PIC_ &&
!GV->hasLocalLinkage())
O << "@PLT";
- printOffset(MO.getOffset());
+ printOffset(MO.getOffset(), O);
return;
}
case MachineOperand::MO_ExternalSymbol: {
void SystemZAsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
- const char* Modifier) {
+ raw_ostream &O, const char *Modifier) {
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
case MachineOperand::MO_Register: {
unsigned Reg = MO.getReg();
if (Modifier && strncmp(Modifier, "subreg", 6) == 0) {
if (strncmp(Modifier + 7, "even", 4) == 0)
- Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_EVEN);
+ Reg = TM.getRegisterInfo()->getSubReg(Reg, SystemZ::SUBREG_EVEN);
else if (strncmp(Modifier + 7, "odd", 3) == 0)
- Reg = TRI->getSubReg(Reg, SystemZ::SUBREG_ODD);
+ Reg = TM.getRegisterInfo()->getSubReg(Reg, SystemZ::SUBREG_ODD);
else
assert(0 && "Invalid subreg modifier");
}
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
+ O << *MO.getMBB()->getSymbol();
return;
case MachineOperand::MO_JumpTableIndex:
O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_'
O << MAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_'
<< MO.getIndex();
- printOffset(MO.getOffset());
+ printOffset(MO.getOffset(), O);
break;
- case MachineOperand::MO_GlobalAddress: {
- const GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getMangledName(GV);
-
- O << Name;
+ case MachineOperand::MO_GlobalAddress:
+ O << *Mang->getSymbol(MO.getGlobal());
break;
- }
case MachineOperand::MO_ExternalSymbol: {
- std::string Name(MAI->getGlobalPrefix());
- Name += MO.getSymbolName();
- O << Name;
+ O << *GetExternalSymbolSymbol(MO.getSymbolName());
break;
}
default:
}
switch (MO.getTargetFlags()) {
- default:
- llvm_unreachable("Unknown target flag on GV operand");
+ default: assert(0 && "Unknown target flag on GV operand");
case SystemZII::MO_NO_FLAG:
break;
case SystemZII::MO_GOTENT: O << "@GOTENT"; break;
case SystemZII::MO_PLT: O << "@PLT"; break;
}
- printOffset(MO.getOffset());
+ printOffset(MO.getOffset(), O);
}
void SystemZAsmPrinter::printRIAddrOperand(const MachineInstr *MI, int OpNum,
- const char* Modifier) {
+ raw_ostream &O,
+ const char *Modifier) {
const MachineOperand &Base = MI->getOperand(OpNum);
// Print displacement operand.
- printOperand(MI, OpNum+1);
+ printOperand(MI, OpNum+1, O);
// Print base operand (if any)
if (Base.getReg()) {
O << '(';
- printOperand(MI, OpNum);
+ printOperand(MI, OpNum, O);
O << ')';
}
}
void SystemZAsmPrinter::printRRIAddrOperand(const MachineInstr *MI, int OpNum,
- const char* Modifier) {
+ raw_ostream &O,
+ const char *Modifier) {
const MachineOperand &Base = MI->getOperand(OpNum);
const MachineOperand &Index = MI->getOperand(OpNum+2);
// Print displacement operand.
- printOperand(MI, OpNum+1);
+ printOperand(MI, OpNum+1, O);
// Print base operand (if any)
if (Base.getReg()) {
O << '(';
- printOperand(MI, OpNum);
+ printOperand(MI, OpNum, O);
if (Index.getReg()) {
O << ',';
- printOperand(MI, OpNum+2);
+ printOperand(MI, OpNum+2, O);
}
O << ')';
} else
assert(!Index.getReg() && "Should allocate base register first!");
}
-void SystemZAsmPrinter::PrintGlobalVariable(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;
-
- MCSymbol *GVarSym = GetGlobalValueSymbol(GVar);
- Constant *C = GVar->getInitializer();
- unsigned Size = TD->getTypeAllocSize(C->getType());
- unsigned Align = std::max(1U, TD->getPreferredAlignmentLog(GVar));
-
- printVisibility(GVarSym, GVar->getVisibility());
-
- O << "\t.type\t";
- GVarSym->print(O, MAI);
- O << ",@object\n";
-
- OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(GVar, Mang,
- TM));
-
- if (C->isNullValue() && !GVar->hasSection() &&
- !GVar->isThreadLocal() &&
- (GVar->hasLocalLinkage() || GVar->isWeakForLinker())) {
-
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
-
- if (GVar->hasLocalLinkage()) {
- O << "\t.local\t";
- GVarSym->print(O, MAI);
- O << '\n';
- }
-
- O << MAI->getCOMMDirective();
- GVarSym->print(O, MAI);
- O << ',' << Size;
- if (MAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (MAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
-
- if (VerboseAsm) {
- O << "\t\t" << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
- return;
- }
-
- switch (GVar->getLinkage()) {
- case GlobalValue::CommonLinkage:
- case GlobalValue::LinkOnceAnyLinkage:
- case GlobalValue::LinkOnceODRLinkage:
- case GlobalValue::WeakAnyLinkage:
- case GlobalValue::WeakODRLinkage:
- O << "\t.weak\t";
- GVarSym->print(O, MAI);
- O << '\n';
- break;
- case GlobalValue::DLLExportLinkage:
- 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.globl ";
- GVarSym->print(O, MAI);
- O << '\n';
- // FALL THROUGH
- case GlobalValue::PrivateLinkage:
- case GlobalValue::LinkerPrivateLinkage:
- case GlobalValue::InternalLinkage:
- break;
- default:
- assert(0 && "Unknown linkage type!");
- }
-
- // Use 16-bit alignment by default to simplify bunch of stuff
- EmitAlignment(Align, GVar, 1);
- GVarSym->print(O, MAI);
- O << ":";
- if (VerboseAsm) {
- O << "\t\t\t\t" << MAI->getCommentString() << ' ';
- WriteAsOperand(O, GVar, /*PrintType=*/false, GVar->getParent());
- }
- O << '\n';
- if (MAI->hasDotTypeDotSizeDirective()) {
- O << "\t.size\t";
- GVarSym->print(O, MAI);
- O << ", " << Size << '\n';
- }
-
- EmitGlobalConstant(C);
-}
-
// Force static initialization.
extern "C" void LLVMInitializeSystemZAsmPrinter() {
RegisterAsmPrinter<SystemZAsmPrinter> X(TheSystemZTarget);
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