//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "asm-printer"
-#include "PIC16.h"
-#include "PIC16TargetMachine.h"
-#include "PIC16ConstantPoolValue.h"
-#include "PIC16InstrInfo.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
+#include "PIC16AsmPrinter.h"
+#include "PIC16TargetAsmInfo.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Mangler.h"
+#include "llvm/Function.h"
#include "llvm/Module.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/Mangler.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetAsmInfo.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
-#include <cctype>
+#include "llvm/DerivedTypes.h"
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
-namespace {
- struct VISIBILITY_HIDDEN PIC16AsmPrinter : public AsmPrinter {
- PIC16AsmPrinter(raw_ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
- : AsmPrinter(O, TM, T) {
- }
-
-
- /// 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().
- ///
- typedef std::map<const Value *, unsigned> ValueMapTy;
- ValueMapTy NumberForBB;
-
- /// Keeps the set of GlobalValues that require non-lazy-pointers for
- /// indirect access.
- std::set<std::string> GVNonLazyPtrs;
-
- /// Keeps the set of external function GlobalAddresses that the asm
- /// printer should generate stubs for.
- std::set<std::string> FnStubs;
-
- /// True if asm printer is printing a series of CONSTPOOL_ENTRY.
- bool InCPMode;
-
- virtual const char *getPassName() const {
- return "PIC16 Assembly Printer";
- }
-
- void printOperand(const MachineInstr *MI, int opNum,
- const char *Modifier = 0);
-
- void printSOImmOperand(const MachineInstr *MI, int opNum);
-
- void printAddrModeOperand(const MachineInstr *MI, int OpNo);
-
- void printRegisterList(const MachineInstr *MI, int opNum);
- void printCPInstOperand(const MachineInstr *MI, int opNum,
- const char *Modifier);
-
-
- bool printInstruction(const MachineInstr *MI); // autogenerated.
- void emitFunctionStart(MachineFunction &F);
- bool runOnMachineFunction(MachineFunction &F);
- bool doInitialization(Module &M);
- bool doFinalization(Module &M);
-
- virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV);
-
- void getAnalysisUsage(AnalysisUsage &AU) const;
-
- public:
- void SwitchToTextSection(const char *NewSection,
- const GlobalValue *GV = NULL);
- void SwitchToDataSection(const char *NewSection,
- const GlobalValue *GV = NULL);
- void SwitchToDataOvrSection(const char *NewSection,
- const GlobalValue *GV = NULL);
- };
-} // end of anonymous namespace
-
#include "PIC16GenAsmWriter.inc"
-/// createPIC16CodePrinterPass - Returns a pass that prints the PIC16
-/// 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::createPIC16CodePrinterPass(raw_ostream &o,
- PIC16TargetMachine &tm) {
- return new PIC16AsmPrinter(o, tm, tm.getTargetAsmInfo());
-}
-
-void PIC16AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const
-{
- // FIXME: Currently unimplemented.
-}
-
-
-void PIC16AsmPrinter ::
-EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV)
-{
- printDataDirective(MCPV->getType());
-
- PIC16ConstantPoolValue *ACPV = (PIC16ConstantPoolValue*)MCPV;
- GlobalValue *GV = ACPV->getGV();
- std::string Name = GV ? Mang->getValueName(GV) : TAI->getGlobalPrefix();
- if (!GV)
- Name += ACPV->getSymbol();
- if (ACPV->isNonLazyPointer()) {
- GVNonLazyPtrs.insert(Name);
- O << TAI->getPrivateGlobalPrefix() << Name << "$non_lazy_ptr";
- } else if (ACPV->isStub()) {
- FnStubs.insert(Name);
- O << TAI->getPrivateGlobalPrefix() << Name << "$stub";
- } else {
- O << Name;
- }
-
- if (ACPV->hasModifier()) O << "(" << ACPV->getModifier() << ")";
-
- if (ACPV->getPCAdjustment() != 0) {
- O << "-(" << TAI->getPrivateGlobalPrefix() << "PC"
- << utostr(ACPV->getLabelId())
- << "+" << (unsigned)ACPV->getPCAdjustment();
-
- if (ACPV->mustAddCurrentAddress())
- O << "-.";
-
- O << ")";
- }
- O << "\n";
-
- // If the constant pool value is a extern weak symbol, remember to emit
- // the weak reference.
- if (GV && GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
-}
-
-/// emitFunctionStart - Emit the directives used by ASM on the start of
-/// functions.
-void PIC16AsmPrinter::emitFunctionStart(MachineFunction &MF)
-{
- // Print out the label for the function.
- const Function *F = MF.getFunction();
- MachineFrameInfo *FrameInfo = MF.getFrameInfo();
- if (FrameInfo->hasStackObjects()) {
- int indexBegin = FrameInfo->getObjectIndexBegin();
- int indexEnd = FrameInfo->getObjectIndexEnd();
- while (indexBegin < indexEnd) {
- if (indexBegin == 0)
- SwitchToDataOvrSection(F->getParent()->getModuleIdentifier().c_str(),
- F);
-
- O << "\t\t" << CurrentFnName << "_" << indexBegin << " " << "RES"
- << " " << FrameInfo->getObjectSize(indexBegin) << "\n" ;
- indexBegin++;
+bool PIC16AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
+ std::string NewBankselLabel;
+ unsigned Operands = MI->getNumOperands();
+ if (Operands > 1) {
+ // Global address or external symbol should be second operand from last
+ // if we want to print banksel for it.
+ const MachineOperand &Op = MI->getOperand(Operands-2);
+ unsigned OpType = Op.getType();
+ if (OpType == MachineOperand::MO_GlobalAddress ||
+ OpType == MachineOperand::MO_ExternalSymbol) {
+ if (OpType == MachineOperand::MO_GlobalAddress )
+ NewBankselLabel = Mang->getValueName(Op.getGlobal());
+ else
+ NewBankselLabel = Op.getSymbolName();
+
+ // Operand after global address or external symbol should be banksel.
+ // Value 1 for this operand means we need to generate banksel else do not
+ // generate banksel.
+ const MachineOperand &BS = MI->getOperand(Operands-1);
+ if (((int)BS.getImm() == 1) &&
+ (strcmp (CurrentBankselLabelInBasicBlock.c_str(),
+ NewBankselLabel.c_str()))) {
+ CurrentBankselLabelInBasicBlock = NewBankselLabel;
+ O << "\tbanksel ";
+ printOperand(MI, Operands-2);
+ O << "\n";
+ }
}
}
- SwitchToTextSection(CurrentFnName.c_str(), F);
- O << "_" << CurrentFnName << ":" ;
- O << "\n";
+ printInstruction(MI);
+ return true;
}
-
/// runOnMachineFunction - This uses the printInstruction()
/// method to print assembly for each instruction.
///
-bool PIC16AsmPrinter::runOnMachineFunction(MachineFunction &MF)
-{
+bool PIC16AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+ // This calls the base class function required to be called at beginning
+ // of runOnMachineFunction.
SetupMachineFunction(MF);
- O << "\n";
- // What's my mangled name?
- CurrentFnName = Mang->getValueName(MF.getFunction());
+ // Get the mangled name.
+ const Function *F = MF.getFunction();
+ CurrentFnName = Mang->getValueName(F);
- // Emit the function start directives
- emitFunctionStart(MF);
+ // Emit the function variables.
+ emitFunctionData(MF);
+ std::string codeSection;
+ codeSection = "code." + CurrentFnName + ".#";
+ O << "\n";
+ SwitchToTextSection (codeSection.c_str(),F);
// Print out code for the function.
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
printBasicBlockLabel(I, true);
O << '\n';
}
+ else
+ O << CurrentFnName << ":\n";
+ CurrentBankselLabelInBasicBlock = "";
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
// Print the assembly for the instruction.
- O << '\t';
- printInstruction(II);
- ++EmittedInsts;
+ printMachineInstruction(II);
}
}
+ return false; // we didn't modify anything.
+}
- // We didn't modify anything.
- return false;
+/// createPIC16CodePrinterPass - Returns a pass that prints the PIC16
+/// 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::createPIC16CodePrinterPass(raw_ostream &o,
+ PIC16TargetMachine &tm) {
+ return new PIC16AsmPrinter(o, tm, tm.getTargetAsmInfo());
}
-void PIC16AsmPrinter::
-printOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+void PIC16AsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
- const TargetRegisterInfo &RI = *TM.getRegisterInfo();
switch (MO.getType()) {
case MachineOperand::MO_Register:
if (TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
- O << RI.get(MO.getReg()).Name;
+ O << TM.getRegisterInfo()->get(MO.getReg()).AsmName;
else
assert(0 && "not implemented");
- break;
+ return;
- case MachineOperand::MO_Immediate:
- if (!Modifier || strcmp(Modifier, "no_hash") != 0)
- O << "#";
+ case MachineOperand::MO_Immediate:
O << (int)MO.getImm();
- break;
-
- case MachineOperand::MO_MachineBasicBlock:
- printBasicBlockLabel(MO.getMBB());
return;
- case MachineOperand::MO_GlobalAddress:
- O << Mang->getValueName(MO.getGlobal())<<'+'<<MO.getOffset();
+ case MachineOperand::MO_GlobalAddress:
+ O << Mang->getValueName(MO.getGlobal());
break;
- case MachineOperand::MO_ExternalSymbol:
+ case MachineOperand::MO_ExternalSymbol:
O << MO.getSymbolName();
break;
- case MachineOperand::MO_ConstantPoolIndex:
- O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
- << '_' << MO.getIndex();
- break;
-
- case MachineOperand::MO_FrameIndex:
- O << "_" << CurrentFnName
- << '+' << MO.getIndex();
- break;
-
- case MachineOperand::MO_JumpTableIndex:
- O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
- << '_' << MO.getIndex();
- break;
-
default:
- O << "<unknown operand type>"; abort ();
- break;
- } // end switch.
+ assert(0 && " Operand type not supported.");
+ }
}
-static void
-printSOImm(raw_ostream &O, int64_t V, const TargetAsmInfo *TAI)
-{
- assert(V < (1 << 12) && "Not a valid so_imm value!");
-
- O << (unsigned) V;
+bool PIC16AsmPrinter::doInitialization (Module &M) {
+ bool Result = AsmPrinter::doInitialization(M);
+ // FIXME:: This is temporary solution to generate the include file.
+ // The processor should be passed to llc as in input and the header file
+ // should be generated accordingly.
+ O << "\t#include P16F1937.INC\n";
+ EmitExternsAndGlobals (M);
+ EmitInitData (M);
+ EmitUnInitData(M);
+ EmitRomData(M);
+ return Result;
}
-/// printSOImmOperand - SOImm is 4-bit rotated amount in bits 8-11 with 8-bit
-/// immediate in bits 0-7.
-void PIC16AsmPrinter::printSOImmOperand(const MachineInstr *MI, int OpNum)
-{
- const MachineOperand &MO = MI->getOperand(OpNum);
- assert(MO.isImmediate() && "Not a valid so_imm value!");
- printSOImm(O, MO.getImm(), TAI);
+void PIC16AsmPrinter::EmitExternsAndGlobals (Module &M) {
+ // Emit declarations for external functions.
+ O << "section.0" <<"\n";
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; I++) {
+ std::string Name = Mang->getValueName(I);
+ if (Name.compare("abort") == 0)
+ continue;
+ if (I->isDeclaration()) {
+ O << "\textern " <<Name << "\n";
+ O << "\textern " << Name << ".retval\n";
+ O << "\textern " << Name << ".args\n";
+ }
+ else if (I->hasExternalLinkage()) {
+ O << "\tglobal " << Name << "\n";
+ O << "\tglobal " << Name << ".retval\n";
+ O << "\tglobal " << Name << ".args\n";
+ }
+ }
+ // Emit declarations for external globals.
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; I++) {
+ std::string Name = Mang->getValueName(I);
+ if (I->isDeclaration())
+ O << "\textern "<< Name << "\n";
+ else if (I->getLinkage() == GlobalValue::CommonLinkage)
+ O << "\tglobal "<< Name << "\n";
+ }
}
+void PIC16AsmPrinter::EmitInitData (Module &M) {
+ std::string iDataSection = "idata.#";
+ SwitchToDataSection(iDataSection.c_str());
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I) {
+ if (!I->hasInitializer()) // External global require no code.
+ continue;
+ Constant *C = I->getInitializer();
+ const PointerType *PtrTy = I->getType();
+ int AddrSpace = PtrTy->getAddressSpace();
-void PIC16AsmPrinter::printAddrModeOperand(const MachineInstr *MI, int Op)
-{
- const MachineOperand &MO1 = MI->getOperand(Op);
- const MachineOperand &MO2 = MI->getOperand(Op+1);
+ if ((!C->isNullValue()) && (AddrSpace == PIC16ISD::RAM_SPACE)) {
+
+ if (EmitSpecialLLVMGlobal(I))
+ continue;
- if (MO2.isFrameIndex ()) {
- printOperand(MI, Op+1);
- return;
- }
+ // Any variables reaching here with "." in its name is a local scope
+ // variable and should not be printed in global data section.
+ std::string name = Mang->getValueName(I);
+ if (name.find(".") != std::string::npos)
+ continue;
- if (!MO1.isRegister()) {
- // FIXME: This is for CP entries, but isn't right.
- printOperand(MI, Op);
- return;
+ O << name;
+ EmitGlobalConstant(C);
+ }
}
+}
- // If this is Stack Slot
- if (MO1.isRegister()) {
- if (strcmp(TM.getRegisterInfo()->get(MO1.getReg()).Name, "SP") == 0) {
- O << CurrentFnName <<"_"<< MO2.getImm();
- return;
+void PIC16AsmPrinter::EmitConstantValueOnly(const Constant* CV) {
+ if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
+ unsigned BitWidth = CI->getBitWidth();
+ int Val = CI->getZExtValue();
+ if (BitWidth == 8) {
+ // Expecting db directive here. In case of romdata we need to pad the
+ // word with zeros.
+ if (IsRomData)
+ O << 0 <<", ";
+ O << Val;
+ }
+ else if (BitWidth == 16) {
+ unsigned Element1, Element2;
+ Element1 = 0x00ff & Val;
+ Element2 = 0x00ff & (Val >> 8);
+ if (IsRomData)
+ O << 0 <<", "<<Element1 <<", "<< 0 <<", "<< Element2;
+ else
+ O << Element1 <<", "<< Element2;
+ }
+ else if (BitWidth == 32) {
+ unsigned Element1, Element2, Element3, Element4;
+ Element1 = 0x00ff & Val;
+ Element2 = 0x00ff & (Val >> 8);
+ Element3 = 0x00ff & (Val >> 16);
+ Element4 = 0x00ff & (Val >> 24);
+ if (IsRomData)
+ O << 0 <<", "<< Element1 <<", "<< 0 <<", "<< Element2 <<", "<< 0
+ <<", "<< Element3 <<", "<< 0 <<", "<< Element4;
+ else
+ O << Element1 <<", "<< Element2 <<", "<< Element3 <<", "<< Element4;
}
- O << "[" << TM.getRegisterInfo()->get(MO1.getReg()).Name;
- O << "+";
- O << MO2.getImm();
- O << "]";
return;
}
-
- O << "[" << TM.getRegisterInfo()->get(MO1.getReg()).Name;
- O << "]";
+ AsmPrinter::EmitConstantValueOnly(CV);
}
-
-void PIC16AsmPrinter::printRegisterList(const MachineInstr *MI, int opNum)
+void PIC16AsmPrinter::EmitRomData (Module &M)
{
- O << "{";
- for (unsigned i = opNum, e = MI->getNumOperands(); i != e; ++i) {
- printOperand(MI, i);
- if (i != e-1) O << ", ";
- }
- O << "}";
-}
+ std::string romDataSection = "romdata.#";
+ SwitchToRomDataSection(romDataSection.c_str());
+ IsRomData = true;
+ for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I) {
+ if (!I->hasInitializer()) // External global require no code.
+ continue;
-void PIC16AsmPrinter::
-printCPInstOperand(const MachineInstr *MI, int OpNo, const char *Modifier)
-{
- assert(Modifier && "This operand only works with a modifier!");
-
- // There are two aspects to a CONSTANTPOOL_ENTRY operand, the label and the
- // data itself.
- if (!strcmp(Modifier, "label")) {
- unsigned ID = MI->getOperand(OpNo).getImm();
- O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber()
- << '_' << ID << ":\n";
- } else {
- assert(!strcmp(Modifier, "cpentry") && "Unknown modifier for CPE");
- unsigned CPI = MI->getOperand(OpNo).getIndex();
-
- const MachineConstantPoolEntry &MCPE = // Chasing pointers is fun?
- MI->getParent()->getParent()->getConstantPool()->getConstants()[CPI];
-
- if (MCPE.isMachineConstantPoolEntry())
- EmitMachineConstantPoolValue(MCPE.Val.MachineCPVal);
- else {
- EmitGlobalConstant(MCPE.Val.ConstVal);
- // remember to emit the weak reference
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(MCPE.Val.ConstVal))
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
+ Constant *C = I->getInitializer();
+ const PointerType *PtrTy = I->getType();
+ int AddrSpace = PtrTy->getAddressSpace();
+ if ((!C->isNullValue()) && (AddrSpace == PIC16ISD::ROM_SPACE)) {
+
+ if (EmitSpecialLLVMGlobal(I))
+ continue;
+
+ // Any variables reaching here with "." in its name is a local scope
+ // variable and should not be printed in global data section.
+ std::string name = Mang->getValueName(I);
+ if (name.find(".") != std::string::npos)
+ continue;
+
+ O << name;
+ EmitGlobalConstant(C);
+ O << "\n";
}
}
+ IsRomData = false;
}
-bool PIC16AsmPrinter::doInitialization(Module &M)
-{
- bool Result = AsmPrinter::doInitialization(M);
- return Result;
-}
-
-bool PIC16AsmPrinter::doFinalization(Module &M)
+void PIC16AsmPrinter::EmitUnInitData (Module &M)
{
+ std::string uDataSection = "udata.#";
+ SwitchToUDataSection(uDataSection.c_str());
const TargetData *TD = TM.getTargetData();
for (Module::const_global_iterator I = M.global_begin(), E = M.global_end();
I != E; ++I) {
- if (!I->hasInitializer()) // External global require no code
+ if (!I->hasInitializer()) // External global require no code.
continue;
- if (EmitSpecialLLVMGlobal(I)) {
- continue;
+ Constant *C = I->getInitializer();
+ if (C->isNullValue()) {
+
+ if (EmitSpecialLLVMGlobal(I))
+ continue;
+
+ // Any variables reaching here with "." in its name is a local scope
+ // variable and should not be printed in global data section.
+ std::string name = Mang->getValueName(I);
+ if (name.find(".") != std::string::npos)
+ continue;
+
+ const Type *Ty = C->getType();
+ unsigned Size = TD->getTypePaddedSize(Ty);
+ O << name << " " <<"RES"<< " " << Size ;
+ O << "\n";
}
+ }
+}
+
+bool PIC16AsmPrinter::doFinalization(Module &M) {
+ O << "\t" << "END\n";
+ bool Result = AsmPrinter::doFinalization(M);
+ return Result;
+}
- std::string name = Mang->getValueName(I);
+void PIC16AsmPrinter::emitFunctionData(MachineFunction &MF) {
+ const Function *F = MF.getFunction();
+ std::string FuncName = Mang->getValueName(F);
+ const Module *M = F->getParent();
+ const TargetData *TD = TM.getTargetData();
+
+ // Emit the data section name.
+ O << "\n";
+ std::string fDataSection = "fdata." + CurrentFnName + ".#";
+ SwitchToUDataSection(fDataSection.c_str(), F);
+
+ //Emit function return value.
+ O << CurrentFnName << ".retval:\n";
+ const Type *RetType = F->getReturnType();
+ if (RetType->getTypeID() != Type::VoidTyID) {
+ unsigned RetSize = TD->getTypePaddedSize(RetType);
+ if (RetSize > 0)
+ O << CurrentFnName << ".retval" << " RES " << RetSize;
+ }
+ // Emit function arguments.
+ O << CurrentFnName << ".args:\n";
+ for (Function::const_arg_iterator AI = F->arg_begin(), AE = F->arg_end();
+ AI != AE; ++AI) {
+ std::string ArgName = Mang->getValueName(AI);
+ const Type *ArgTy = AI->getType();
+ unsigned ArgSize = TD->getTypePaddedSize(ArgTy);
+ O << CurrentFnName << ".args." << ArgName << " RES " << ArgSize;
+ }
+ // Emit the function variables.
+
+ // In PIC16 all the function arguments and local variables are global.
+ // Therefore to get the variable belonging to this function entire
+ // global list will be traversed and variables belonging to this function
+ // will be emitted in the current data section.
+ for (Module::const_global_iterator I = M->global_begin(), E = M->global_end();
+ I != E; ++I) {
+ std::string VarName = Mang->getValueName(I);
+
+ // The variables of a function are of form FuncName.* . If this variable
+ // does not belong to this function then continue.
+ if (!(VarName.find(FuncName + ".") == 0 ? true : false))
+ continue;
+
Constant *C = I->getInitializer();
const Type *Ty = C->getType();
- unsigned Size = TD->getABITypeSize(Ty);
- unsigned Align = TD->getPreferredAlignmentLog(I);
+ unsigned Size = TD->getTypePaddedSize(Ty);
+ // Emit memory reserve directive.
+ O << VarName << " RES " << Size << "\n";
+ }
+ emitFunctionTempData(MF);
+}
- const char *VisibilityDirective = NULL;
- if (I->hasHiddenVisibility())
- VisibilityDirective = TAI->getHiddenDirective();
- else if (I->hasProtectedVisibility())
- VisibilityDirective = TAI->getProtectedDirective();
+void PIC16AsmPrinter::emitFunctionTempData(MachineFunction &MF) {
+ // Emit temporary variables.
+ MachineFrameInfo *FrameInfo = MF.getFrameInfo();
+ if (FrameInfo->hasStackObjects()) {
+ int indexBegin = FrameInfo->getObjectIndexBegin();
+ int indexEnd = FrameInfo->getObjectIndexEnd();
- if (VisibilityDirective)
- O << VisibilityDirective << name << "\n";
+ if (indexBegin < indexEnd)
+ O << CurrentFnName << ".tmp RES"<< " "
+ <<indexEnd - indexBegin <<"\n";
+ /*
+ while (indexBegin < indexEnd) {
+ O << CurrentFnName << "_tmp_" << indexBegin << " " << "RES"<< " "
+ << 1 << "\n" ;
+ indexBegin++;
+ }
+ */
+ }
+}
- if (C->isNullValue()) {
- if (I->hasExternalLinkage()) {
- if (const char *Directive = TAI->getZeroFillDirective()) {
- O << "\t.globl\t" << name << "\n";
- O << Directive << "__DATA__, __common, " << name << ", "
- << Size << ", " << Align << "\n";
- continue;
- }
- }
+/// The function is same as AsmPrinter::SwitchtoDataSection except the call
+/// to getUDataSectionStartSuffix.
+void PIC16AsmPrinter::SwitchToUDataSection(const char *NewSection,
+ const GlobalValue *GV) {
+ std::string NS;
+ if (GV && GV->hasSection())
+ NS = TAI->getSwitchToSectionDirective() + GV->getSection();
+ else
+ NS = NewSection;
- if (!I->hasSection() &&
- (I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage() || I->hasCommonLinkage())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
- SwitchToDataSection(M.getModuleIdentifier().c_str(), I);
- if (TAI->getLCOMMDirective() != NULL) {
- if (I->hasInternalLinkage()) {
- O << TAI->getLCOMMDirective() << name << "," << Size;
- } else
- O << TAI->getCOMMDirective() << name << "," << Size;
- } else {
- if (I->hasInternalLinkage())
- O << "\t.local\t" << name << "\n";
-
- O << TAI->getCOMMDirective() <<"\t" << name << " " <<"RES"<< " "
- << Size;
- O << "\n\t\tGLOBAL" <<" "<< name;
- if (TAI->getCOMMDirectiveTakesAlignment())
- O << "," << (TAI->getAlignmentIsInBytes() ? (1 << Align) : Align);
- }
- continue;
- }
- }
+ // If we're already in this section, we're done.
+ if (CurrentSection == NS) return;
- switch (I->getLinkage()) {
- case GlobalValue::AppendingLinkage:
- // FIXME: appending linkage variables should go into a section of
- // their name or something. For now, just emit them as external.
- // FALL THROUGH
+ // Close the current section, if applicable.
+ if (TAI->getSectionEndDirectiveSuffix() && !CurrentSection.empty())
+ O << CurrentSection << TAI->getSectionEndDirectiveSuffix() << '\n';
- case GlobalValue::ExternalLinkage:
- O << "\t.globl " << name << "\n";
- // FALL THROUGH
+ CurrentSection = NS;
- case GlobalValue::InternalLinkage:
- break;
+ if (!CurrentSection.empty()){}
+ O << CurrentSection << (static_cast<const PIC16TargetAsmInfo *>(TAI))->
+ getUDataSectionStartSuffix() << '\n';
- default:
- assert(0 && "Unknown linkage type!");
- break;
- } // end switch.
+ IsInTextSection = false;
+}
- EmitAlignment(Align, I);
- O << name << ":\t\t\t\t" << TAI->getCommentString() << " " << I->getName()
- << "\n";
+/// The function is same as AsmPrinter::SwitchtoDataSection except the call
+/// to getRomDataSectionStartSuffix.
+void PIC16AsmPrinter::SwitchToRomDataSection(const char *NewSection,
+ const GlobalValue *GV) {
+ std::string NS;
+ if (GV && GV->hasSection())
+ NS = TAI->getSwitchToSectionDirective() + GV->getSection();
+ else
+ NS = NewSection;
- // If the initializer is a extern weak symbol, remember to emit the weak
- // reference!
- if (const GlobalValue *GV = dyn_cast<GlobalValue>(C))
- if (GV->hasExternalWeakLinkage())
- ExtWeakSymbols.insert(GV);
+ // If we're already in this section, we're done.
+ if (CurrentSection == NS) return;
- EmitGlobalConstant(C);
- O << '\n';
- } // end for.
+ // Close the current section, if applicable.
+ if (TAI->getSectionEndDirectiveSuffix() && !CurrentSection.empty())
+ O << CurrentSection << TAI->getSectionEndDirectiveSuffix() << '\n';
- O << "\n "<< "END";
- return AsmPrinter::doFinalization(M);
-}
+ CurrentSection = NS;
-void PIC16AsmPrinter::
-SwitchToTextSection(const char *NewSection, const GlobalValue *GV)
-{
- O << "\n";
- if (NewSection && *NewSection) {
- std::string codeSection = "code_";
- codeSection += NewSection;
- codeSection += " ";
- codeSection += "CODE";
- AsmPrinter::SwitchToTextSection(codeSection.c_str(), GV);
- }
- else
- AsmPrinter::SwitchToTextSection(NewSection, GV);
-}
+ if (!CurrentSection.empty()) {}
+ O << CurrentSection << (static_cast< const PIC16TargetAsmInfo *>(TAI))->
+ getRomDataSectionStartSuffix() << '\n';
-void PIC16AsmPrinter::
-SwitchToDataSection(const char *NewSection, const GlobalValue *GV)
-{
- // Need to append index for page.
- O << "\n";
- if (NewSection && *NewSection) {
- std::string dataSection = "udata_";
- dataSection += NewSection;
- if (dataSection.substr(dataSection.length() - 2).compare(".o") == 0) {
- dataSection = dataSection.substr(0, dataSection.length() - 2);
- }
- dataSection += " ";
- dataSection += "UDATA";
- AsmPrinter::SwitchToDataSection(dataSection.c_str(), GV);
- }
- else
- AsmPrinter::SwitchToDataSection(NewSection, GV);
+ IsInTextSection = false;
}
-void PIC16AsmPrinter::
-SwitchToDataOvrSection(const char *NewSection, const GlobalValue *GV)
-{
- O << "\n";
- if (NewSection && *NewSection) {
- std::string dataSection = "frame_";
- dataSection += NewSection;
- if (dataSection.substr(dataSection.length() - 2).compare(".o") == 0) {
- dataSection = dataSection.substr(0, dataSection.length() - 2);
- }
- dataSection += "_";
- dataSection += CurrentFnName;
- dataSection += " ";
- dataSection += "UDATA_OVR";
- AsmPrinter::SwitchToDataSection(dataSection.c_str(), GV);
- }
- else
- AsmPrinter::SwitchToDataSection(NewSection, GV);
-}
projects / oota-llvm.git / blobdiff