#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/MachineConstantPool.h"
#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetData.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/raw_ostream.h"
-
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
namespace {
- class VISIBILITY_HIDDEN SystemZAsmPrinter : public AsmPrinter {
+ class SystemZAsmPrinter : public AsmPrinter {
public:
- SystemZAsmPrinter(raw_ostream &O, SystemZTargetMachine &TM,
- const TargetAsmInfo *TAI,
- CodeGenOpt::Level OL, bool V)
- : AsmPrinter(O, TM, TAI, OL, V) {}
+ SystemZAsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
+ MCContext &Ctx, MCStreamer &Streamer,
+ const MCAsmInfo *MAI)
+ : AsmPrinter(O, TM, Ctx, Streamer, MAI) {}
virtual const char *getPassName() const {
return "SystemZ Assembly Printer";
O << (int32_t)MI->getOperand(OpNum).getImm();
}
- bool printInstruction(const MachineInstr *MI); // autogenerated.
- void printMachineInstruction(const MachineInstr * MI);
+ void printInstruction(const MachineInstr *MI); // autogenerated.
+ static const char *getRegisterName(unsigned RegNo);
- void emitFunctionHeader(const MachineFunction &MF);
- bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
- void printModuleLevelGV(const GlobalVariable* GVar);
+ void EmitInstruction(const MachineInstr *MI);
void getAnalysisUsage(AnalysisUsage &AU) const {
AsmPrinter::getAnalysisUsage(AU);
#include "SystemZGenAsmWriter.inc"
-/// createSystemZCodePrinterPass - Returns a pass that prints the SystemZ
-/// 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::createSystemZCodePrinterPass(raw_ostream &o,
- SystemZTargetMachine &tm,
- CodeGenOpt::Level OptLevel,
- bool verbose) {
- return new SystemZAsmPrinter(o, tm, tm.getTargetAsmInfo(), OptLevel, verbose);
-}
-
-bool SystemZAsmPrinter::doInitialization(Module &M) {
- Mang = new Mangler(M, "", TAI->getPrivateGlobalPrefix());
- return false; // success
-}
-
-
-bool SystemZAsmPrinter::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);
-
- return AsmPrinter::doFinalization(M);
-}
-
-void SystemZAsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
- const Function *F = MF.getFunction();
-
- SwitchToSection(TAI->SectionForGlobal(F));
-
- unsigned FnAlign = 4;
- if (F->hasFnAttr(Attribute::OptimizeForSize))
- FnAlign = 1;
-
- EmitAlignment(FnAlign, F);
-
- switch (F->getLinkage()) {
- default: assert(0 && "Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- case Function::PrivateLinkage:
- break;
- case Function::ExternalLinkage:
- O << "\t.globl\t" << CurrentFnName << '\n';
- break;
- case Function::LinkOnceAnyLinkage:
- case Function::LinkOnceODRLinkage:
- case Function::WeakAnyLinkage:
- case Function::WeakODRLinkage:
- O << "\t.weak\t" << CurrentFnName << '\n';
- break;
- }
-
- printVisibility(CurrentFnName, F->getVisibility());
-
- O << "\t.type\t" << CurrentFnName << ",@function\n"
- << CurrentFnName << ":\n";
-}
-
-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.
- if (!VerboseAsm && (I->pred_empty() || I->isOnlyReachableByFallthrough())) {
- // This is an entry block or a block that's only reachable via a
- // fallthrough edge. In non-VerboseAsm mode, don't print the label.
- } else {
- printBasicBlockLabel(I, true, true, VerboseAsm);
- O << '\n';
- }
-
- for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
- II != E; ++II)
- // Print the assembly for the instruction.
- printMachineInstruction(II);
- }
-
- if (TAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
-
- // Print out jump tables referenced by the function.
- EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
-
- O.flush();
-
- // We didn't modify anything
- return false;
-}
-
-void SystemZAsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
+void SystemZAsmPrinter::EmitInstruction(const MachineInstr *MI) {
// Call the autogenerated instruction printer routines.
- if (printInstruction(MI))
- return;
-
- assert(0 && "Should not happen");
+ printInstruction(MI);
+ OutStreamer.AddBlankLine();
}
-void SystemZAsmPrinter::printPCRelImmOperand(const MachineInstr *MI, int OpNum) {
+void SystemZAsmPrinter::printPCRelImmOperand(const MachineInstr *MI, int OpNum){
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
case MachineOperand::MO_Immediate:
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB(), false, false, VerboseAsm);
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress: {
const GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getValueName(GV);
-
- O << Name;
+ O << *GetGlobalValueSymbol(GV);
// Assemble calls via PLT for externally visible symbols if PIC.
if (TM.getRelocationModel() == Reloc::PIC_ &&
return;
}
case MachineOperand::MO_ExternalSymbol: {
- std::string Name(TAI->getGlobalPrefix());
+ std::string Name(MAI->getGlobalPrefix());
Name += MO.getSymbolName();
O << Name;
assert(0 && "Invalid subreg modifier");
}
- O << '%' << TRI->getAsmName(Reg);
+ O << '%' << getRegisterName(Reg);
return;
}
case MachineOperand::MO_Immediate:
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ O << *MO.getMBB()->getSymbol(OutContext);
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();
printOffset(MO.getOffset());
break;
- case MachineOperand::MO_GlobalAddress: {
- const GlobalValue *GV = MO.getGlobal();
- std::string Name = Mang->getValueName(GV);
-
- O << Name;
+ case MachineOperand::MO_GlobalAddress:
+ O << *GetGlobalValueSymbol(MO.getGlobal());
break;
- }
case MachineOperand::MO_ExternalSymbol: {
- std::string Name(TAI->getGlobalPrefix());
- Name += MO.getSymbolName();
- O << Name;
+ O << *GetExternalSymbolSymbol(MO.getSymbolName());
break;
}
default:
switch (MO.getTargetFlags()) {
default:
- assert(0 && "Unknown target flag on GV operand");
+ llvm_unreachable("Unknown target flag on GV operand");
case SystemZII::MO_NO_FLAG:
break;
case SystemZII::MO_GOTENT: O << "@GOTENT"; break;
assert(!Index.getReg() && "Should allocate base register first!");
}
-/// PrintUnmangledNameSafely - Print out the printable characters in the name.
-/// Don't print things like \\n or \\0.
-static void PrintUnmangledNameSafely(const Value *V, raw_ostream &OS) {
- for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen();
- Name != E; ++Name)
- if (isprint(*Name))
- OS << *Name;
-}
-
-void SystemZAsmPrinter::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;
-
- std::string name = Mang->getValueName(GVar);
- Constant *C = GVar->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getTypeAllocSize(Type);
- unsigned Align = std::max(1U, TD->getPreferredAlignmentLog(GVar));
-
- printVisibility(name, GVar->getVisibility());
-
- O << "\t.type\t" << name << ",@object\n";
-
- SwitchToSection(TAI->SectionForGlobal(GVar));
-
- 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" << name << '\n';
-
- O << TAI->getCOMMDirective() << name << ',' << Size;
- if (TAI->getCOMMDirectiveTakesAlignment())
- O << ',' << (TAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
-
- if (VerboseAsm) {
- O << "\t\t" << TAI->getCommentString() << ' ';
- PrintUnmangledNameSafely(GVar, O);
- }
- 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" << name << '\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 " << name << '\n';
- // FALL THROUGH
- case GlobalValue::PrivateLinkage:
- 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);
- O << name << ":";
- if (VerboseAsm) {
- O << "\t\t\t\t" << TAI->getCommentString() << ' ';
- PrintUnmangledNameSafely(GVar, O);
- }
- O << '\n';
- if (TAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << name << ", " << Size << '\n';
-
- EmitGlobalConstant(C);
+// Force static initialization.
+extern "C" void LLVMInitializeSystemZAsmPrinter() {
+ RegisterAsmPrinter<SystemZAsmPrinter> X(TheSystemZTarget);
}
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