//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "asm-printer"
-#include "PIC16.h"
-#include "PIC16TargetMachine.h"
-#include "PIC16ConstantPoolValue.h"
-#include "PIC16InstrInfo.h"
-#include "llvm/Constants.h"
+#include "PIC16AsmPrinter.h"
+#include "PIC16TargetAsmInfo.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/Function.h"
#include "llvm/Module.h"
-#include "llvm/ADT/SetVector.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/DwarfWriter.h"
+#include "llvm/Support/FormattedStream.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/Target/TargetAsmInfo.h"
-#include "llvm/Target/TargetData.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
-#include <cctype>
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/CodeGen/DwarfWriter.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/Target/TargetRegistry.h"
using namespace llvm;
-STATISTIC(EmittedInsts, "Number of machine instrs printed");
-
-namespace {
- struct VISIBILITY_HIDDEN PIC16AsmPrinter : public AsmPrinter {
- PIC16AsmPrinter(std::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(std::ostream &o,
- PIC16TargetMachine &tm) {
- return new PIC16AsmPrinter(o, tm, tm.getTargetAsmInfo());
-}
-
-void PIC16AsmPrinter::getAnalysisUsage(AnalysisUsage &AU) const
-{
- // Currently unimplemented.
+bool PIC16AsmPrinter::printMachineInstruction(const MachineInstr *MI) {
+ printInstruction(MI);
+ return true;
}
+/// runOnMachineFunction - This emits the frame section, autos section and
+/// assembly for each instruction. Also takes care of function begin debug
+/// directive and file begin debug directive (if required) for the function.
+///
+bool PIC16AsmPrinter::runOnMachineFunction(MachineFunction &MF) {
+ this->MF = &MF;
-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);
-}
-
-/// 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++;
- }
- }
- SwitchToTextSection(CurrentFnName.c_str(), F);
- O << "_" << CurrentFnName << ":" ;
- O << "\n";
-}
+ // This calls the base class function required to be called at beginning
+ // of runOnMachineFunction.
+ SetupMachineFunction(MF);
+ // Get the mangled name.
+ const Function *F = MF.getFunction();
+ CurrentFnName = Mang->getMangledName(F);
-/// runOnMachineFunction - This uses the printInstruction()
-/// method to print assembly for each instruction.
-///
-bool PIC16AsmPrinter::
-runOnMachineFunction(MachineFunction &MF)
-{
+ // Emit the function frame (args and temps).
+ EmitFunctionFrame(MF);
- // DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
- SetupMachineFunction(MF);
- O << "\n";
+ DbgInfo.BeginFunction(MF);
- // NOTE: we don't print out constant pools here, they are handled as
- // instructions.
- O << "\n";
+ // Emit the autos section of function.
+ EmitAutos(CurrentFnName);
- // What's my mangled name?
- CurrentFnName = Mang->getValueName(MF.getFunction());
+ // Now emit the instructions of function in its code section.
+ const char *codeSection = PAN::getCodeSectionName(CurrentFnName).c_str();
+
+ const Section *fCodeSection = TAI->getNamedSection(codeSection,
+ SectionFlags::Code);
+ // Start the Code Section.
+ O << "\n";
+ SwitchToSection(fCodeSection);
- // Emit the function start directives
- emitFunctionStart(MF);
+ // Emit the frame address of the function at the beginning of code.
+ O << "\tretlw low(" << PAN::getFrameLabel(CurrentFnName) << ")\n";
+ O << "\tretlw high(" << PAN::getFrameLabel(CurrentFnName) << ")\n";
- // Emit pre-function debug information.
- // DW.BeginFunction(&MF);
+ // Emit function start label.
+ O << CurrentFnName << ":\n";
+ DebugLoc CurDL;
+ O << "\n";
// 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 (I != MF.begin()) {
printBasicBlockLabel(I, true);
O << '\n';
}
+
+ // Print a basic block.
for (MachineBasicBlock::const_iterator II = I->begin(), E = I->end();
II != E; ++II) {
+
+ // Emit the line directive if source line changed.
+ const DebugLoc DL = II->getDebugLoc();
+ if (!DL.isUnknown() && DL != CurDL) {
+ DbgInfo.ChangeDebugLoc(MF, DL);
+ CurDL = DL;
+ }
+
// Print the assembly for the instruction.
- O << '\t';
- printInstruction(II);
- ++EmittedInsts;
+ printMachineInstruction(II);
}
}
+
+ // Emit function end debug directives.
+ DbgInfo.EndFunction(MF);
- // Emit post-function debug information.
- // DW.EndFunction();
-
- // We didn't modify anything.
- return false;
+ return false; // we didn't modify anything.
}
-void PIC16AsmPrinter::
-printOperand(const MachineInstr *MI, int opNum, const char *Modifier)
-{
+
+// printOperand - print operand of insn.
+void PIC16AsmPrinter::printOperand(const MachineInstr *MI, int opNum) {
const MachineOperand &MO = MI->getOperand(opNum);
- const TargetRegisterInfo &RI = *TM.getRegisterInfo();
- switch (MO.getType())
- {
+ 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");
+ llvm_unreachable("not implemented");
+ return;
+
+ case MachineOperand::MO_Immediate:
+ O << (int)MO.getImm();
+ return;
+
+ case MachineOperand::MO_GlobalAddress: {
+ O << Mang->getMangledName(MO.getGlobal());
break;
}
- case MachineOperand::MO_Immediate:
- {
- if (!Modifier || strcmp(Modifier, "no_hash") != 0)
- O << "#";
- O << (int)MO.getImm();
+ case MachineOperand::MO_ExternalSymbol: {
+ const char *Sname = MO.getSymbolName();
+
+ // If its a libcall name, record it to decls section.
+ if (PAN::getSymbolTag(Sname) == PAN::LIBCALL) {
+ LibcallDecls.push_back(Sname);
+ }
+
+ O << Sname;
break;
}
case MachineOperand::MO_MachineBasicBlock:
- {
printBasicBlockLabel(MO.getMBB());
return;
- }
- case MachineOperand::MO_GlobalAddress:
- {
- O << Mang->getValueName(MO.getGlobal())<<'+'<<MO.getOffset();
- break;
- }
- 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.
+ llvm_unreachable(" Operand type not supported.");
+ }
}
-static void
-printSOImm(std::ostream &O, int64_t V, const TargetAsmInfo *TAI)
-{
- assert(V < (1 << 12) && "Not a valid so_imm value!");
- unsigned Imm = V;
-
- O << Imm;
+/// printCCOperand - Print the cond code operand.
+///
+void PIC16AsmPrinter::printCCOperand(const MachineInstr *MI, int opNum) {
+ int CC = (int)MI->getOperand(opNum).getImm();
+ O << PIC16CondCodeToString((PIC16CC::CondCodes)CC);
}
-/// printSOImmOperand - SOImm is 4-bit rotate 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);
+/// printLibcallDecls - print the extern declarations for compiler
+/// intrinsics.
+///
+void PIC16AsmPrinter::printLibcallDecls(void) {
+ // If no libcalls used, return.
+ if (LibcallDecls.empty()) return;
+
+ O << TAI->getCommentString() << "External decls for libcalls - BEGIN." <<"\n";
+ // Remove duplicate entries.
+ LibcallDecls.sort();
+ LibcallDecls.unique();
+ for (std::list<const char*>::const_iterator I = LibcallDecls.begin();
+ I != LibcallDecls.end(); I++) {
+ O << TAI->getExternDirective() << *I << "\n";
+ O << TAI->getExternDirective() << PAN::getArgsLabel(*I) << "\n";
+ O << TAI->getExternDirective() << PAN::getRetvalLabel(*I) << "\n";
+ }
+ O << TAI->getCommentString() << "External decls for libcalls - END." <<"\n";
}
+/// doInitialization - Perfrom Module level initializations here.
+/// One task that we do here is to sectionize all global variables.
+/// The MemSelOptimizer pass depends on the sectionizing.
+///
+bool PIC16AsmPrinter::doInitialization(Module &M) {
+ bool Result = AsmPrinter::doInitialization(M);
-void PIC16AsmPrinter:: printAddrModeOperand(const MachineInstr *MI, int Op)
-{
- const MachineOperand &MO1 = MI->getOperand(Op);
- const MachineOperand &MO2 = MI->getOperand(Op+1);
+ // 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 << "\n\t#include P16F1937.INC\n";
- if (MO2.isFrameIndex ()) {
- printOperand(MI, Op+1);
- return;
+ // Set the section names for all globals.
+ for (Module::global_iterator I = M.global_begin(), E = M.global_end();
+ I != E; ++I) {
+ I->setSection(TAI->SectionForGlobal(I)->getName());
}
- if (!MO1.isRegister()) { // FIXME: This is for CP entries, but isn't right.
- printOperand(MI, Op);
- return;
- }
+ DbgInfo.BeginModule(M);
+ EmitFunctionDecls(M);
+ EmitUndefinedVars(M);
+ EmitDefinedVars(M);
+ EmitIData(M);
+ EmitUData(M);
+ EmitRomData(M);
+ return Result;
+}
- // If this is Stack Slot
- if (MO1.isRegister()) {
- if(strcmp(TM.getRegisterInfo()->get(MO1.getReg()).Name, "SP")==0)
- {
- O << CurrentFnName <<"_"<< MO2.getImm();
- return;
- }
- O << "[" << TM.getRegisterInfo()->get(MO1.getReg()).Name;
- O << "+";
- O << MO2.getImm();
- O << "]";
- return;
+/// Emit extern decls for functions imported from other modules, and emit
+/// global declarations for function defined in this module and which are
+/// available to other modules.
+///
+void PIC16AsmPrinter::EmitFunctionDecls(Module &M) {
+ // Emit declarations for external functions.
+ O <<"\n"<<TAI->getCommentString() << "Function Declarations - BEGIN." <<"\n";
+ for (Module::iterator I = M.begin(), E = M.end(); I != E; I++) {
+ if (I->isIntrinsic())
+ continue;
+
+ std::string Name = Mang->getMangledName(I);
+ if (Name.compare("@abort") == 0)
+ continue;
+
+ if (!I->isDeclaration() && !I->hasExternalLinkage())
+ continue;
+
+ const char *directive = I->isDeclaration() ? TAI->getExternDirective() :
+ TAI->getGlobalDirective();
+
+ O << directive << Name << "\n";
+ O << directive << PAN::getRetvalLabel(Name) << "\n";
+ O << directive << PAN::getArgsLabel(Name) << "\n";
}
- O << "[" << TM.getRegisterInfo()->get(MO1.getReg()).Name;
- O << "]";
+ O << TAI->getCommentString() << "Function Declarations - END." <<"\n";
}
+// Emit variables imported from other Modules.
+void PIC16AsmPrinter::EmitUndefinedVars(Module &M) {
+ std::vector<const GlobalVariable*> Items = PTAI->ExternalVarDecls->Items;
+ if (!Items.size()) return;
-void PIC16AsmPrinter:: printRegisterList(const MachineInstr *MI, int opNum)
-{
- O << "{";
- for (unsigned i = opNum, e = MI->getNumOperands(); i != e; ++i) {
- printOperand(MI, i);
- if (i != e-1) O << ", ";
+ O << "\n" << TAI->getCommentString() << "Imported Variables - BEGIN" << "\n";
+ for (unsigned j = 0; j < Items.size(); j++) {
+ O << TAI->getExternDirective() << Mang->getMangledName(Items[j]) << "\n";
}
- O << "}";
+ O << TAI->getCommentString() << "Imported Variables - END" << "\n";
}
-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);
- }
+// Emit variables defined in this module and are available to other modules.
+void PIC16AsmPrinter::EmitDefinedVars(Module &M) {
+ std::vector<const GlobalVariable*> Items = PTAI->ExternalVarDefs->Items;
+ if (!Items.size()) return;
+
+ O << "\n" << TAI->getCommentString() << "Exported Variables - BEGIN" << "\n";
+ for (unsigned j = 0; j < Items.size(); j++) {
+ O << TAI->getGlobalDirective() << Mang->getMangledName(Items[j]) << "\n";
}
+ O << TAI->getCommentString() << "Exported Variables - END" << "\n";
}
+// Emit initialized data placed in ROM.
+void PIC16AsmPrinter::EmitRomData(Module &M) {
+ // Print ROM Data section.
+ const std::vector<PIC16Section*> &ROSections = PTAI->ROSections;
+ for (unsigned i = 0; i < ROSections.size(); i++) {
+ const std::vector<const GlobalVariable*> &Items = ROSections[i]->Items;
+ if (!Items.size()) continue;
+ O << "\n";
+ SwitchToSection(PTAI->ROSections[i]->S_);
+ for (unsigned j = 0; j < Items.size(); j++) {
+ O << Mang->getMangledName(Items[j]);
+ Constant *C = Items[j]->getInitializer();
+ int AddrSpace = Items[j]->getType()->getAddressSpace();
+ EmitGlobalConstant(C, AddrSpace);
+ }
+ }
+}
-bool PIC16AsmPrinter:: doInitialization(Module &M)
-{
- // Emit initial debug information.
- // DW.BeginModule(&M);
-
- bool Result = AsmPrinter::doInitialization(M);
- return Result;
+bool PIC16AsmPrinter::doFinalization(Module &M) {
+ printLibcallDecls();
+ EmitRemainingAutos();
+ DbgInfo.EndModule(M);
+ O << "\n\t" << "END\n";
+ return AsmPrinter::doFinalization(M);
}
-bool PIC16AsmPrinter:: doFinalization(Module &M)
-{
+void PIC16AsmPrinter::EmitFunctionFrame(MachineFunction &MF) {
+ const Function *F = MF.getFunction();
+ std::string FuncName = Mang->getMangledName(F);
const TargetData *TD = TM.getTargetData();
+ // Emit the data section name.
+ O << "\n";
+ const char *SectionName = PAN::getFrameSectionName(CurrentFnName).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;
+ const Section *fPDataSection = TAI->getNamedSection(SectionName,
+ SectionFlags::Writeable);
+ SwitchToSection(fPDataSection);
+
+ // Emit function frame label
+ O << PAN::getFrameLabel(CurrentFnName) << ":\n";
+
+ const Type *RetType = F->getReturnType();
+ unsigned RetSize = 0;
+ if (RetType->getTypeID() != Type::VoidTyID)
+ RetSize = TD->getTypeAllocSize(RetType);
+
+ //Emit function return value space
+ // FIXME: Do not emit RetvalLable when retsize is zero. To do this
+ // we will need to avoid printing a global directive for Retval label
+ // in emitExternandGloblas.
+ if(RetSize > 0)
+ O << PAN::getRetvalLabel(CurrentFnName) << " RES " << RetSize << "\n";
+ else
+ O << PAN::getRetvalLabel(CurrentFnName) << ": \n";
+
+ // Emit variable to hold the space for function arguments
+ unsigned ArgSize = 0;
+ for (Function::const_arg_iterator argi = F->arg_begin(),
+ arge = F->arg_end(); argi != arge ; ++argi) {
+ const Type *Ty = argi->getType();
+ ArgSize += TD->getTypeAllocSize(Ty);
+ }
- if (EmitSpecialLLVMGlobal(I)) {
+ O << PAN::getArgsLabel(CurrentFnName) << " RES " << ArgSize << "\n";
+
+ // Emit temporary space
+ int TempSize = PTLI->GetTmpSize();
+ if (TempSize > 0)
+ O << PAN::getTempdataLabel(CurrentFnName) << " RES " << TempSize << '\n';
+}
+
+void PIC16AsmPrinter::EmitIData(Module &M) {
+
+ // Print all IDATA sections.
+ const std::vector<PIC16Section*> &IDATASections = PTAI->IDATASections;
+ for (unsigned i = 0; i < IDATASections.size(); i++) {
+ O << "\n";
+ if (IDATASections[i]->S_->getName().find("llvm.") != std::string::npos)
continue;
+ SwitchToSection(IDATASections[i]->S_);
+ std::vector<const GlobalVariable*> Items = IDATASections[i]->Items;
+ for (unsigned j = 0; j < Items.size(); j++) {
+ std::string Name = Mang->getMangledName(Items[j]);
+ Constant *C = Items[j]->getInitializer();
+ int AddrSpace = Items[j]->getType()->getAddressSpace();
+ O << Name;
+ EmitGlobalConstant(C, AddrSpace);
}
+ }
+}
- std::string name = Mang->getValueName(I);
- Constant *C = I->getInitializer();
- const Type *Type = C->getType();
- unsigned Size = TD->getABITypeSize(Type);
- unsigned Align = TD->getPreferredAlignmentLog(I);
-
- const char *VisibilityDirective = NULL;
- if (I->hasHiddenVisibility())
- VisibilityDirective = TAI->getHiddenDirective();
- else if (I->hasProtectedVisibility())
- VisibilityDirective = TAI->getProtectedDirective();
-
- if (VisibilityDirective)
- O << VisibilityDirective << name << "\n";
-
- 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;
- }
- }
+void PIC16AsmPrinter::EmitUData(Module &M) {
+ const TargetData *TD = TM.getTargetData();
- if (!I->hasSection() &&
- (I->hasInternalLinkage() || I->hasWeakLinkage() ||
- I->hasLinkOnceLinkage())) {
- if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
- if (!NoZerosInBSS && TAI->getBSSSection())
- SwitchToDataSection(M.getModuleIdentifier().c_str(), I);
- else
- SwitchToDataSection(TAI->getDataSection(), 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;
- }
+ // Print all BSS sections.
+ const std::vector<PIC16Section*> &BSSSections = PTAI->BSSSections;
+ for (unsigned i = 0; i < BSSSections.size(); i++) {
+ O << "\n";
+ SwitchToSection(BSSSections[i]->S_);
+ std::vector<const GlobalVariable*> Items = BSSSections[i]->Items;
+ for (unsigned j = 0; j < Items.size(); j++) {
+ std::string Name = Mang->getMangledName(Items[j]);
+ Constant *C = Items[j]->getInitializer();
+ const Type *Ty = C->getType();
+ unsigned Size = TD->getTypeAllocSize(Ty);
+
+ O << Name << " RES " << Size << "\n";
}
+ }
+}
- 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
- }
- case GlobalValue::ExternalLinkage:
- {
- O << "\t.globl " << name << "\n";
- // FALL THROUGH
- }
- case GlobalValue::InternalLinkage:
- {
- if (I->isConstant()) {
- const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
- if (TAI->getCStringSection() && CVA && CVA->isCString()) {
- SwitchToDataSection(TAI->getCStringSection(), I);
- break;
- }
+void PIC16AsmPrinter::EmitAutos(std::string FunctName) {
+ // Section names for all globals are already set.
+ const TargetData *TD = TM.getTargetData();
+
+ // Now print Autos section for this function.
+ std::string SectionName = PAN::getAutosSectionName(FunctName);
+ const std::vector<PIC16Section*> &AutosSections = PTAI->AutosSections;
+ for (unsigned i = 0; i < AutosSections.size(); i++) {
+ O << "\n";
+ if (AutosSections[i]->S_->getName() == SectionName) {
+ // Set the printing status to true
+ AutosSections[i]->setPrintedStatus(true);
+ SwitchToSection(AutosSections[i]->S_);
+ const std::vector<const GlobalVariable*> &Items = AutosSections[i]->Items;
+ for (unsigned j = 0; j < Items.size(); j++) {
+ std::string VarName = Mang->getMangledName(Items[j]);
+ Constant *C = Items[j]->getInitializer();
+ const Type *Ty = C->getType();
+ unsigned Size = TD->getTypeAllocSize(Ty);
+ // Emit memory reserve directive.
+ O << VarName << " RES " << Size << "\n";
}
break;
}
- default:
- {
- assert(0 && "Unknown linkage type!");
- break;
- }
- } // end switch.
-
- EmitAlignment(Align, I);
- O << name << ":\t\t\t\t" << TAI->getCommentString() << " " << I->getName()
- << "\n";
+ }
+}
- // 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);
+// Print autos that were not printed during the code printing of functions.
+// As the functions might themselves would have got deleted by the optimizer.
+void PIC16AsmPrinter::EmitRemainingAutos() {
+ const TargetData *TD = TM.getTargetData();
- EmitGlobalConstant(C);
- O << '\n';
- } // end for.
+ // Now print Autos section for this function.
+ std::vector <PIC16Section *>AutosSections = PTAI->AutosSections;
+ for (unsigned i = 0; i < AutosSections.size(); i++) {
+
+ // if the section is already printed then don't print again
+ if (AutosSections[i]->isPrinted())
+ continue;
- O << "\n "<< "END";
- return AsmPrinter::doFinalization(M);
-}
+ // Set status as printed
+ AutosSections[i]->setPrintedStatus(true);
-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);
+ O << "\n";
+ SwitchToSection(AutosSections[i]->S_);
+ const std::vector<const GlobalVariable*> &Items = AutosSections[i]->Items;
+ for (unsigned j = 0; j < Items.size(); j++) {
+ std::string VarName = Mang->getMangledName(Items[j]);
+ Constant *C = Items[j]->getInitializer();
+ const Type *Ty = C->getType();
+ unsigned Size = TD->getTypeAllocSize(Ty);
+ // Emit memory reserve directive.
+ O << VarName << " RES " << Size << "\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);
-}
-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);
+extern "C" void LLVMInitializePIC16Target() {
+ // Register the targets
+ RegisterTargetMachine<PIC16TargetMachine> A(ThePIC16Target);
+ RegisterTargetMachine<CooperTargetMachine> B(TheCooperTarget);
+ RegisterAsmPrinter<PIC16AsmPrinter> C(ThePIC16Target);
+ RegisterAsmPrinter<PIC16AsmPrinter> D(TheCooperTarget);
}
projects / oota-llvm.git / blobdiff