#define DEBUG_TYPE "asm-printer"
#include "MSP430.h"
#include "MSP430InstrInfo.h"
-#include "MSP430TargetAsmInfo.h"
+#include "MSP430InstPrinter.h"
+#include "MSP430MCAsmInfo.h"
+#include "MSP430MCInstLower.h"
#include "MSP430TargetMachine.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.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/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/Mangler.h"
STATISTIC(EmittedInsts, "Number of machine instrs printed");
+static cl::opt<bool>
+EnableMCInst("enable-msp430-mcinst-printer", cl::Hidden,
+ cl::desc("enable experimental mcinst gunk in the msp430 backend"));
+
namespace {
class VISIBILITY_HIDDEN MSP430AsmPrinter : public AsmPrinter {
public:
MSP430AsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
- const TargetAsmInfo *TAI, bool V)
- : AsmPrinter(O, TM, TAI, V) {}
+ const MCAsmInfo *MAI, bool V)
+ : AsmPrinter(O, TM, MAI, V) {}
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 printSrcMemOperand(const MachineInstr *MI, int OpNum,
const char* Modifier = 0);
void printCCOperand(const MachineInstr *MI, int OpNum);
void printInstruction(const MachineInstr *MI); // autogenerated.
+ static const char *getRegisterName(unsigned RegNo);
+
void printMachineInstruction(const MachineInstr * MI);
+ 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 printInstructionThroughMCStreamer(const MachineInstr *MI);
void emitFunctionHeader(const MachineFunction &MF);
bool runOnMachineFunction(MachineFunction &F);
void MSP430AsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
const Function *F = MF.getFunction();
- SwitchToSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
+ OutStreamer.SwitchSection(getObjFileLowering().SectionForGlobal(F, Mang, TM));
unsigned FnAlign = MF.getAlignment();
EmitAlignment(FnAlign, F);
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';
- }
+ EmitBasicBlockStart(I);
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II)
printMachineInstruction(II);
}
- if (TAI->hasDotTypeDotSizeDirective())
+ if (MAI->hasDotTypeDotSizeDirective())
O << "\t.size\t" << CurrentFnName << ", .-" << CurrentFnName << '\n';
// We didn't modify anything
void MSP430AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
++EmittedInsts;
+ processDebugLoc(MI, true);
+
// Call the autogenerated instruction printer routines.
- printInstruction(MI);
+ if (EnableMCInst) {
+ printInstructionThroughMCStreamer(MI);
+ } else {
+ printInstruction(MI);
+ }
+
+ if (VerboseAsm && !MI->getDebugLoc().isUnknown())
+ EmitComments(*MI);
+ O << '\n';
+
+ processDebugLoc(MI, false);
}
void MSP430AsmPrinter::printOperand(const MachineInstr *MI, int OpNum,
const MachineOperand &MO = MI->getOperand(OpNum);
switch (MO.getType()) {
case MachineOperand::MO_Register:
- assert (TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
- "Virtual registers should be already mapped!");
- O << TM.getRegisterInfo()->get(MO.getReg()).AsmName;
+ O << getRegisterName(MO.getReg());
return;
case MachineOperand::MO_Immediate:
if (!Modifier || strcmp(Modifier, "nohash"))
O << MO.getImm();
return;
case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
+ GetMBBSymbol(MO.getMBB()->getNumber())->print(O, MAI);
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;
+ if (Offset)
+ O << ')';
return;
}
case MachineOperand::MO_ExternalSymbol: {
- bool isCallOp = Modifier && !strcmp(Modifier, "call");
- std::string Name(TAI->getGlobalPrefix());
+ bool isMemOp = Modifier && !strcmp(Modifier, "mem");
+ std::string Name(MAI->getGlobalPrefix());
Name += MO.getSymbolName();
- if (isCallOp)
- O << '#';
- O << Name;
+
+ O << (isMemOp ? '&' : '#') << Name;
+
return;
}
default:
}
}
-extern "C" void LLVMInitializeMSP430Target() {
- // Register the target.
- RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
- RegisterAsmPrinter<MSP430AsmPrinter> Y(TheMSP430Target);
- RegisterAsmInfo<MSP430TargetAsmInfo> Z(TheMSP430Target);
+/// PrintAsmOperand - Print out an operand for an inline asm expression.
+///
+bool MSP430AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
+ unsigned AsmVariant,
+ const char *ExtraCode) {
+ // Does this asm operand have a single letter operand modifier?
+ if (ExtraCode && ExtraCode[0])
+ return true; // Unknown modifier.
+
+ printOperand(MI, OpNo);
+ 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::printInstructionThroughMCStreamer(const MachineInstr *MI)
+{
+
+ MSP430MCInstLower MCInstLowering(OutContext, Mang);
+
+ switch (MI->getOpcode()) {
+ case TargetInstrInfo::DBG_LABEL:
+ case TargetInstrInfo::EH_LABEL:
+ case TargetInstrInfo::GC_LABEL:
+ printLabel(MI);
+ return;
+ case TargetInstrInfo::KILL:
+ return;
+ case TargetInstrInfo::INLINEASM:
+ O << '\t';
+ printInlineAsm(MI);
+ return;
+ case TargetInstrInfo::IMPLICIT_DEF:
+ printImplicitDef(MI);
+ return;
+ default: break;
+ }
+
+ MCInst TmpInst;
+ MCInstLowering.Lower(MI, TmpInst);
+
+ printMCInst(&TmpInst);
+}
+
+// Force static initialization.
+extern "C" void LLVMInitializeMSP430AsmPrinter() {
+ RegisterAsmPrinter<MSP430AsmPrinter> X(TheMSP430Target);
}
projects / oota-llvm.git / blobdiff