#define DEBUG_TYPE "asm-printer"
#include "MSP430.h"
#include "MSP430InstrInfo.h"
+#include "MSP430InstPrinter.h"
#include "MSP430MCAsmInfo.h"
+#include "MSP430MCInstLower.h"
#include "MSP430TargetMachine.h"
#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/MC/MCInst.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetRegistry.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/Support/Compiler.h"
#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/ErrorHandling.h"
-
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
namespace {
- class VISIBILITY_HIDDEN MSP430AsmPrinter : public AsmPrinter {
+ class MSP430AsmPrinter : public AsmPrinter {
public:
MSP430AsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
- const MCAsmInfo *MAI, bool V)
- : AsmPrinter(O, TM, MAI, V) {}
+ MCContext &Ctx, MCStreamer &Streamer,
+ const MCAsmInfo *MAI)
+ : AsmPrinter(O, TM, Ctx, Streamer, MAI) {}
virtual const char *getPassName() const {
return "MSP430 Assembly Printer";
}
+ void printMCInst(const MCInst *MI) {
+ MSP430InstPrinter(O, *MAI).printInstruction(MI);
+ }
void printOperand(const MachineInstr *MI, int OpNum,
const char* Modifier = 0);
+ void printPCRelImmOperand(const MachineInstr *MI, int OpNum) {
+ printOperand(MI, OpNum);
+ }
void printSrcMemOperand(const MachineInstr *MI, int OpNum,
const char* Modifier = 0);
void printCCOperand(const MachineInstr *MI, int OpNum);
- void printInstruction(const MachineInstr *MI); // autogenerated.
void printMachineInstruction(const MachineInstr * MI);
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
unsigned AsmVariant,
const char *ExtraCode);
-
- void emitFunctionHeader(const MachineFunction &MF);
- bool runOnMachineFunction(MachineFunction &F);
-
- virtual void PrintGlobalVariable(const GlobalVariable *GV) {
- // FIXME: No support for global variables?
- }
+ bool PrintAsmMemoryOperand(const MachineInstr *MI,
+ unsigned OpNo, unsigned AsmVariant,
+ const char *ExtraCode);
+ void EmitInstruction(const MachineInstr *MI);
void getAnalysisUsage(AnalysisUsage &AU) const {
AsmPrinter::getAnalysisUsage(AU);
};
} // end of anonymous namespace
-#include "MSP430GenAsmWriter.inc"
-
-
-void MSP430AsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
- const Function *F = MF.getFunction();
-
- OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
-
- unsigned FnAlign = MF.getAlignment();
- EmitAlignment(FnAlign, F);
-
- switch (F->getLinkage()) {
- default: llvm_unreachable("Unknown linkage type!");
- case Function::InternalLinkage: // Symbols default to internal.
- case Function::PrivateLinkage:
- case Function::LinkerPrivateLinkage:
- 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 MSP430AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
- SetupMachineFunction(MF);
- O << "\n\n";
-
- // 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 (MAI->hasDotTypeDotSizeDirective())
- O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
-
- // We didn't modify anything
- return false;
-}
-
-void MSP430AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
- ++EmittedInsts;
-
- // Call the autogenerated instruction printer routines.
- printInstruction(MI);
-}
void MSP430AsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
const char* Modifier) {
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
+ default: assert(0 && "Not implemented yet!");
case MachineOperand::MO_Register:
- assert (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
- "Virtual registers should be already mapped!");
- O << TM.getRegisterInfo()->get(MO.getReg()).AsmName;
+ O << MSP430InstPrinter::getRegisterName(MO.getReg());
return;
case MachineOperand::MO_Immediate:
if (!Modifier || strcmp(Modifier, "nohash"))
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ O << *MO.getMBB()->getSymbol(OutContext);
return;
case MachineOperand::MO_GlobalAddress: {
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
- bool isCallOp = Modifier && !strcmp(Modifier, "call");
- std::string Name = Mang->getMangledName(MO.getGlobal());
- assert(MO.getOffset() == 0 && "No offsets allowed!");
+ uint64_t Offset = MO.getOffset();
- if (isCallOp)
- O << '#';
- else if (isMemOp)
- O << '&';
+ O << (isMemOp ? '&' : '#');
+ if (Offset)
+ O << '(' << Offset << '+';
- O << Name;
+ O << *GetGlobalValueSymbol(MO.getGlobal());
+
+ if (Offset)
+ O << ')';
return;
}
case MachineOperand::MO_ExternalSymbol: {
- bool isCallOp = Modifier && !strcmp(Modifier, "call");
- std::string Name(MAI->getGlobalPrefix());
- Name += MO.getSymbolName();
- if (isCallOp)
- O << '#';
- O << Name;
+ bool isMemOp = Modifier && !strcmp(Modifier, "mem");
+ O << (isMemOp ? '&' : '#');
+ O << MAI->getGlobalPrefix() << MO.getSymbolName();
return;
}
- default:
- llvm_unreachable("Not implemented yet!");
}
}
const MachineOperand &Base = MI->getOperand(OpNum);
const MachineOperand &Disp = MI->getOperand(OpNum+1);
- if (Base.isGlobal())
- printOperand(MI, OpNum, "mem");
- else if (Disp.isImm() && !Base.getReg())
+ // Print displacement first
+ if (!Disp.isImm()) {
+ printOperand(MI, OpNum+1, "mem");
+ } else {
+ if (!Base.getReg())
+ O << '&';
+
+ printOperand(MI, OpNum+1, "nohash");
+ }
+
+
+ // Print register base field
+ if (Base.getReg()) {
+ O << '(';
printOperand(MI, OpNum);
- else if (Base.getReg()) {
- if (Disp.getImm()) {
- printOperand(MI, OpNum + 1, "nohash");
- O << '(';
- printOperand(MI, OpNum);
- O << ')';
- } else {
- O << '@';
- printOperand(MI, OpNum);
- }
- } else
- llvm_unreachable("Unsupported memory operand");
+ O << ')';
+ }
}
void MSP430AsmPrinter::printCCOperand(const MachineInstr *MI, int OpNum) {
- unsigned CC = MI->getOperand(OpNum).getImm();
-
- switch (CC) {
- default:
- llvm_unreachable("Unsupported CC code");
- break;
- case MSP430::COND_E:
- O << "eq";
- break;
- case MSP430::COND_NE:
- O << "ne";
- break;
- case MSP430::COND_HS:
- O << "hs";
- break;
- case MSP430::COND_LO:
- O << "lo";
- break;
- case MSP430::COND_GE:
- O << "ge";
- break;
- case MSP430::COND_L:
- O << 'l';
- break;
+ switch (MI->getOperand(OpNum).getImm()) {
+ default: assert(0 && "Unknown cond");
+ case MSP430CC::COND_E: O << "eq"; break;
+ case MSP430CC::COND_NE: O << "ne"; break;
+ case MSP430CC::COND_HS: O << "hs"; break;
+ case MSP430CC::COND_LO: O << "lo"; break;
+ case MSP430CC::COND_GE: O << "ge"; break;
+ case MSP430CC::COND_L: O << 'l'; break;
}
}
return false;
}
+bool MSP430AsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI,
+ unsigned OpNo, unsigned AsmVariant,
+ const char *ExtraCode) {
+ if (ExtraCode && ExtraCode[0]) {
+ return true; // Unknown modifier.
+ }
+ printSrcMemOperand(MI, OpNo);
+ return false;
+}
+
+//===----------------------------------------------------------------------===//
+void MSP430AsmPrinter::EmitInstruction(const MachineInstr *MI) {
+ MSP430MCInstLower MCInstLowering(OutContext, *Mang, *this);
+
+ MCInst TmpInst;
+ MCInstLowering.Lower(MI, TmpInst);
+ printMCInst(&TmpInst);
+ O << '\n';
+}
+
+static MCInstPrinter *createMSP430MCInstPrinter(const Target &T,
+ unsigned SyntaxVariant,
+ const MCAsmInfo &MAI,
+ raw_ostream &O) {
+ if (SyntaxVariant == 0)
+ return new MSP430InstPrinter(O, MAI);
+ return 0;
+}
+
// Force static initialization.
extern "C" void LLVMInitializeMSP430AsmPrinter() {
RegisterAsmPrinter<MSP430AsmPrinter> X(TheMSP430Target);
+ TargetRegistry::RegisterMCInstPrinter(TheMSP430Target,
+ createMSP430MCInstPrinter);
}
projects / oota-llvm.git / blobdiff