--- /dev/null
+//===-- llvm/CGen/Writer.h - Printer for VM assembly files -------*- C++ -*--=//
+//
+// This functionality is implemented by the lib/CWriter library.
+// This library is used to print C language files to an iostream.
+//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_C_WRITER_H
+#define LLVM_C_WRITER_H
+
+class Module;
+
+#include <iosfwd>
+
+void WriteToC(const Module *Module, std::ostream &o);
+
+#endif
+
+
+
LEVEL = ..
-DIRS = VMCore Analysis Transforms AsmParser Bytecode Support CodeGen Target
+DIRS = VMCore Analysis Transforms AsmParser Bytecode Support CodeGen Target CWriter
include $(LEVEL)/Makefile.common
--- /dev/null
+//===-- Writer.cpp - Library for writing C files -----------------*- C++ -*--=//
+//
+// This library implements the functionality defined in llvm/Assembly/CWriter.h
+// and CLocalVars.h
+//
+// TODO : Recursive types.
+//===-----------------------------------------------------------------------==//
+#include "llvm/Assembly/CWriter.h"
+#include "CLocalVars.h"
+#include "llvm/SlotCalculator.h"
+#include "llvm/Module.h"
+#include "llvm/Argument.h"
+#include "llvm/Function.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Constants.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/BasicBlock.h"
+#include "llvm/iMemory.h"
+#include "llvm/iTerminators.h"
+#include "llvm/iPHINode.h"
+#include "llvm/iOther.h"
+#include "llvm/SymbolTable.h"
+#include "llvm/Support/InstVisitor.h"
+#include "Support/StringExtras.h"
+#include "Support/STLExtras.h"
+
+#include <algorithm>
+#include <strstream>
+using std::string;
+using std::map;
+using std::vector;
+using std::ostream;
+
+/* Implementation of the CLocalVars methods */
+
+// Appends a variable to the LocalVars map if it does not already exist
+// Also check that the type exists on the map.
+void CLocalVars::addLocalVar(const Type *t, const string & var) {
+ if (!LocalVars.count(t) ||
+ find(LocalVars[t].begin(), LocalVars[t].end(), var)
+ == LocalVars[t].end()) {
+ LocalVars[t].push_back(var);
+ }
+}
+
+/* Writer.cpp */
+static string calcTypeNameVar(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string VariableName, string NameSoFar);
+
+static std::string getConstStrValue(const Constant* CPV);
+
+
+//
+//Getting opcodes in terms of the operator
+//
+static const char *getOpcodeOperName(const Instruction *I) {
+ switch (I->getOpcode()) {
+ // Standard binary operators...
+ case Instruction::Add: return "+";
+ case Instruction::Sub: return "-";
+ case Instruction::Mul: return "*";
+ case Instruction::Div: return "/";
+ case Instruction::Rem: return "%";
+
+ // Logical operators...
+ case Instruction::And: return "&";
+ case Instruction::Or: return "|";
+ case Instruction::Xor: return "^";
+
+ // SetCond operators...
+ case Instruction::SetEQ: return "==";
+ case Instruction::SetNE: return "!=";
+ case Instruction::SetLE: return "<=";
+ case Instruction::SetGE: return ">=";
+ case Instruction::SetLT: return "<";
+ case Instruction::SetGT: return ">";
+
+ //ShiftInstruction...
+
+ case Instruction::Shl : return "<<";
+ case Instruction::Shr : return ">>";
+
+ default:
+ cerr << "Invalid operator type!" << I->getOpcode() << "\n";
+ abort();
+ }
+ return 0;
+}
+
+
+// We dont want identifier names with ., space, - in them.
+// So we replace them with _
+static string makeNameProper(string x) {
+ string tmp;
+ for (string::iterator sI = x.begin(), sEnd = x.end(); sI != sEnd; sI++) {
+ if (*sI == '.')
+ tmp += '_';
+ else if (*sI == ' ')
+ tmp += '_';
+ else if (*sI == '-')
+ tmp += "__";
+ else
+ tmp += *sI;
+ }
+ return tmp;
+}
+
+static string getConstantName(const Constant *CPV) {
+ return CPV->getName();
+}
+
+
+static std::string getConstArrayStrValue(const Constant* CPV) {
+ std::string Result;
+
+ // As a special case, print the array as a string if it is an array of
+ // ubytes or an array of sbytes with positive values.
+ //
+ const Type *ETy = cast<ArrayType>(CPV->getType())->getElementType();
+ bool isString = (ETy == Type::SByteTy || ETy == Type::UByteTy);
+
+ if (ETy == Type::SByteTy) {
+ for (unsigned i = 0; i < CPV->getNumOperands(); ++i)
+ if (ETy == Type::SByteTy &&
+ cast<ConstantSInt>(CPV->getOperand(i))->getValue() < 0) {
+ isString = false;
+ break;
+ }
+ }
+
+ if (isString) {
+ Result = "\"";
+ for (unsigned i = 0; i < CPV->getNumOperands(); ++i) {
+ unsigned char C = (ETy == Type::SByteTy) ?
+ (unsigned char)cast<ConstantSInt>(CPV->getOperand(i))->getValue() :
+ (unsigned char)cast<ConstantUInt>(CPV->getOperand(i))->getValue();
+
+ if (isprint(C)) {
+ Result += C;
+ } else {
+ Result += '\\';
+ Result += 'x';
+ Result += ( C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A');
+ Result += ((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A');
+ }
+ }
+ Result += "\"";
+
+ } else {
+ Result = "{";
+ if (CPV->getNumOperands()) {
+ Result += " " + getConstStrValue(cast<Constant>(CPV->getOperand(0)));
+ for (unsigned i = 1; i < CPV->getNumOperands(); i++)
+ Result += ", " + getConstStrValue(cast<Constant>(CPV->getOperand(i)));
+ }
+ Result += " }";
+ }
+
+ return Result;
+}
+
+static std::string getConstStructStrValue(const Constant* CPV) {
+ std::string Result = "{";
+ if (CPV->getNumOperands()) {
+ Result += " " + getConstStrValue(cast<Constant>(CPV->getOperand(0)));
+ for (unsigned i = 1; i < CPV->getNumOperands(); i++)
+ Result += ", " + getConstStrValue(cast<Constant>(CPV->getOperand(i)));
+ }
+
+ return Result + " }";
+}
+
+// our own getStrValue function for constant initializers
+static std::string getConstStrValue(const Constant* CPV) {
+ // Does not handle null pointers, that needs to be checked explicitly
+ string tempstr;
+ if (CPV == ConstantBool::False)
+ return "0";
+ else if (CPV == ConstantBool::True)
+ return "1";
+
+ else if (isa<ConstantArray>(CPV)) {
+ tempstr = getConstArrayStrValue(CPV);
+ }
+ else if (isa<ConstantStruct>(CPV)) {
+ tempstr = getConstStructStrValue(CPV);
+ }
+ else if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(CPV)) {
+ tempstr = utostr((long long unsigned int) CUI->getValue());
+ }
+ else if (ConstantSInt *CSI = dyn_cast<ConstantSInt>(CPV)) {
+ tempstr = itostr(CSI->getValue());
+ }
+ else if (ConstantFP *CFP = dyn_cast<ConstantFP>(CPV)) {
+ tempstr = ftostr(CFP->getValue());
+ }
+
+ if (CPV->getType() == Type::ULongTy)
+ tempstr += "ull";
+ else if (CPV->getType() == Type::LongTy)
+ tempstr += "ll";
+ else if (CPV->getType() == Type::UIntTy ||
+ CPV->getType() == Type::UShortTy)
+ tempstr += "u";
+
+ return tempstr;
+
+}
+
+// WriteCOperand - Write the name of the specified value out to the specified
+// ostream. This can be useful when you just want to print int %0 not the
+// whole instruction that generated it.
+//
+static void WriteCOperandInternal(ostream &Out, const Value *V,
+ bool PrintName, SlotCalculator *Table,
+ string &OperandType) {
+ int Slot;
+ if (PrintName && V->hasName()) {
+ // If V has a name.
+ Out << "llvm__" << makeNameProper(V->getName()) << "_" <<
+ (V->getType())->getUniqueID();
+ return;
+ }
+ else if (const Constant *CPV = dyn_cast<const Constant>(V)) {
+ if (isa<ConstantPointerNull>(CPV)) {
+ Out << "(" << OperandType << ")0";
+ }
+ else
+ Out << getConstStrValue(CPV);
+ }
+ else {
+ Slot = Table->getValSlot(V);
+ if (Slot >= 0)
+ Out << "llvm__tmp_" << Slot << "_" << V->getType()->getUniqueID();
+ else if (PrintName)
+ Out << "<badref>";
+ }
+}
+
+// Internal function
+// Essentially pass the Type* variable, an empty typestack and this prints
+// out the C type
+static string calcTypeName(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string *FunctionInfo) {
+
+ // Takin' care of the fact that boolean would be int in C
+ // and that ushort would be unsigned short etc.
+
+ // Base Case
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return "int";
+ break;
+ case Type::UByteTyID:
+ return "unsigned char";
+ break;
+ case Type::SByteTyID:
+ return "signed char";
+ break;
+ case Type::UShortTyID:
+ return "unsigned long long";
+ break;
+ case Type::ULongTyID:
+ return "unsigned long long";
+ break;
+ case Type::LongTyID:
+ return "signed long long";
+ break;
+ case Type::UIntTyID:
+ return "unsigned int";
+ break;
+ default :
+ return Ty->getDescription();
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end())
+ return I->second;
+
+ // Check to see if the Type is already on the stack...
+ unsigned Slot = 0, CurSize = TypeStack.size();
+ while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
+
+ // This is another base case for the recursion. In this case, we know
+ // that we have looped back to a type that we have previously visited.
+ // Generate the appropriate upreference to handle this.
+ //
+ if (Slot < CurSize)
+ return "\\" + utostr(CurSize-Slot); // Here's the upreference
+
+ TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
+
+ string Result;
+ string MInfo = "";
+ switch (Ty->getPrimitiveID()) {
+ case Type::FunctionTyID: {
+ const FunctionType *MTy = cast<const FunctionType>(Ty);
+ Result = calcTypeName(MTy->getReturnType(), TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ Result += "(";
+ *FunctionInfo += " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = MTy->getParamTypes().begin(),
+ E = MTy->getParamTypes().end(); I != E; ++I) {
+ if (I != MTy->getParamTypes().begin())
+ *FunctionInfo += ", ";
+ MInfo = "";
+ *FunctionInfo += calcTypeName(*I, TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ }
+ if (MTy->isVarArg()) {
+ if (!MTy->getParamTypes().empty())
+ *FunctionInfo += ", ";
+ *FunctionInfo += "...";
+ }
+ *FunctionInfo += ")";
+ break;
+ }
+ case Type::StructTyID: {
+ string tempstr = "";
+ const StructType *STy = cast<const StructType>(Ty);
+ Result = " struct {\n ";
+ int indx = 0;
+ for (StructType::ElementTypes::const_iterator
+ I = STy->getElementTypes().begin(),
+ E = STy->getElementTypes().end(); I != E; ++I) {
+ Result += calcTypeNameVar(*I, TypeStack, TypeNames,
+ "field" + itostr(indx++), tempstr);
+ Result += ";\n ";
+ }
+ Result += " } ";
+ break;
+ }
+ case Type::PointerTyID:
+ Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(),
+ TypeStack, TypeNames, &MInfo);
+ Result += "*";
+ break;
+ case Type::ArrayTyID: {
+ const ArrayType *ATy = cast<const ArrayType>(Ty);
+ int NumElements = ATy->getNumElements();
+ Result = calcTypeName(ATy->getElementType(), TypeStack, TypeNames, &MInfo);
+ Result += "*";
+ break;
+ }
+ default:
+ assert(0 && "Unhandled case in getTypeProps!");
+ Result = "<error>";
+ }
+
+ TypeStack.pop_back(); // Remove self from stack...
+ return Result;
+}
+
+// Internal function
+// Pass the Type* variable and and the variable name and this prints out the
+// variable declaration.
+// This is different from calcTypeName because if you need to declare an array
+// the size of the array would appear after the variable name itself
+// For eg. int a[10];
+static string calcTypeNameVar(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string VariableName, string NameSoFar) {
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return "int " + NameSoFar + VariableName;
+ break;
+ case Type::UByteTyID:
+ return "unsigned char " + NameSoFar + VariableName;
+ break;
+ case Type::SByteTyID:
+ return "signed char " + NameSoFar + VariableName;
+ break;
+ case Type::UShortTyID:
+ return "unsigned long long " + NameSoFar + VariableName;
+ break;
+ case Type::ULongTyID:
+ return "unsigned long long " + NameSoFar + VariableName;
+ break;
+ case Type::LongTyID:
+ return "signed long long " + NameSoFar + VariableName;
+ break;
+ case Type::UIntTyID:
+ return "unsigned int " + NameSoFar + VariableName;
+ break;
+ default :
+ return Ty->getDescription() + " " + NameSoFar + VariableName;
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end())
+ return I->second + " " + NameSoFar + VariableName;
+
+ // Check to see if the Type is already on the stack...
+ unsigned Slot = 0, CurSize = TypeStack.size();
+ while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
+
+ if (Slot < CurSize)
+ return "\\" + utostr(CurSize-Slot) + " " + NameSoFar + VariableName;
+ // Here's the upreference
+
+ TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
+
+ string Result;
+ string tempstr = "";
+
+ switch (Ty->getPrimitiveID()) {
+ case Type::FunctionTyID: {
+ string MInfo = "";
+ const FunctionType *MTy = cast<const FunctionType>(Ty);
+ Result += calcTypeName(MTy->getReturnType(), TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ Result += " " + NameSoFar + VariableName;
+ Result += " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = MTy->getParamTypes().begin(),
+ E = MTy->getParamTypes().end(); I != E; ++I) {
+ if (I != MTy->getParamTypes().begin())
+ Result += ", ";
+ MInfo = "";
+ Result += calcTypeName(*I, TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ }
+ if (MTy->isVarArg()) {
+ if (!MTy->getParamTypes().empty())
+ Result += ", ";
+ Result += "...";
+ }
+ Result += ")";
+ break;
+ }
+ case Type::StructTyID: {
+ const StructType *STy = cast<const StructType>(Ty);
+ Result = " struct {\n ";
+ int indx = 0;
+ for (StructType::ElementTypes::const_iterator
+ I = STy->getElementTypes().begin(),
+ E = STy->getElementTypes().end(); I != E; ++I) {
+ Result += calcTypeNameVar(*I, TypeStack, TypeNames,
+ "field" + itostr(indx++), "");
+ Result += ";\n ";
+ }
+ Result += " }";
+ Result += " " + NameSoFar + VariableName;
+ break;
+ }
+
+ case Type::PointerTyID: {
+ Result = calcTypeNameVar(cast<const PointerType>(Ty)->getElementType(),
+ TypeStack, TypeNames, tempstr,
+ "(*" + NameSoFar + VariableName + ")");
+ break;
+ }
+
+ case Type::ArrayTyID: {
+ const ArrayType *ATy = cast<const ArrayType>(Ty);
+ int NumElements = ATy->getNumElements();
+ Result = calcTypeNameVar(ATy->getElementType(), TypeStack, TypeNames,
+ tempstr, NameSoFar + VariableName + "[" +
+ itostr(NumElements) + "]");
+ break;
+ }
+ default:
+ assert(0 && "Unhandled case in getTypeProps!");
+ Result = "<error>";
+ }
+
+ TypeStack.pop_back(); // Remove self from stack...
+ return Result;
+}
+
+// printTypeVarInt - The internal guts of printing out a type that has a
+// potentially named portion and the variable associated with the type.
+static ostream &printTypeVarInt(ostream &Out, const Type *Ty,
+ map<const Type *, string> &TypeNames,
+ string VariableName) {
+ // Primitive types always print out their description, regardless of whether
+ // they have been named or not.
+
+ // Booleans have to be specially handled to be printed as ints with values
+ // 0 or 1;
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return Out << "int " << VariableName;
+ break;
+ case Type::UByteTyID:
+ return Out << "unsigned char " << VariableName;
+ break;
+ case Type::SByteTyID:
+ return Out << "signed char " << VariableName;
+ break;
+ case Type::UShortTyID:
+ return Out << "unsigned long long " << VariableName;
+ break;
+ case Type::ULongTyID:
+ return Out << "unsigned long long " << VariableName;
+ break;
+ case Type::LongTyID:
+ return Out << "signed long long " << VariableName;
+ break;
+ case Type::UIntTyID:
+ return Out << "unsigned int " << VariableName;
+ break;
+ default :
+ return Out << Ty->getDescription() << " " << VariableName;
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end()) return Out << I->second << " " << VariableName;
+
+ // Otherwise we have a type that has not been named but is a derived type.
+ // Carefully recurse the type hierarchy to print out any contained symbolic
+ // names.
+ //
+ vector<const Type *> TypeStack;
+ string TypeNameVar, tempstr = "";
+ TypeNameVar = calcTypeNameVar(Ty, TypeStack, TypeNames, VariableName,
+ tempstr);
+ return Out << TypeNameVar;
+ // TODO: Check what happens to caching
+ // TypeNames.insert(std::make_pair(Ty, TypeName));
+ //Cache type name for later use
+}
+
+// Internal guts of printing a type name
+static ostream &printTypeInt(ostream &Out, const Type *Ty,
+ map<const Type *, string> &TypeNames) {
+ // Primitive types always print out their description, regardless of whether
+ // they have been named or not.
+
+ // Booleans have to be specially handled to be printed as ints with values
+ // 0 or 1;
+
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return Out << "int";
+ break;
+ case Type::UByteTyID:
+ return Out << "unsigned char";
+ break;
+ case Type::SByteTyID:
+ return Out << "signed char";
+ break;
+ case Type::UShortTyID:
+ return Out << "unsigned long long";
+ break;
+ case Type::ULongTyID:
+ return Out << "unsigned long long";
+ break;
+ case Type::LongTyID:
+ return Out << "signed long long";
+ break;
+ case Type::UIntTyID:
+ return Out << "unsigned int";
+ break;
+ default :
+ return Out << Ty->getDescription();
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end()) return Out << I->second;
+
+ // Otherwise we have a type that has not been named but is a derived type.
+ // Carefully recurse the type hierarchy to print out any contained symbolic
+ // names.
+ //
+ vector<const Type *> TypeStack;
+ string MInfo = "";
+ string TypeName = calcTypeName(Ty, TypeStack, TypeNames, &MInfo);
+ // TypeNames.insert(std::make_pair(Ty, TypeName));
+ //Cache type name for later use
+ if (MInfo != "")
+ return Out << TypeName << ")" << MInfo;
+ else
+ return Out << TypeName;
+}
+
+namespace {
+
+ //Internal CWriter class mimics AssemblyWriter.
+ class CWriter {
+ ostream& Out;
+ SlotCalculator &Table;
+ const Module *TheModule;
+ map<const Type *, string> TypeNames;
+ public:
+ inline CWriter(ostream &o, SlotCalculator &Tab, const Module *M)
+ : Out(o), Table(Tab), TheModule(M) {
+
+ }
+
+ inline void write(const Module *M) { printModule(M); }
+
+ ostream& printTypeVar(const Type *Ty, string VariableName, ostream &Out);
+ ostream& printType(const Type *Ty, ostream &Out);
+ void writeOperand(const Value *Operand, bool PrintType,ostream &Out,
+ bool PrintName = true);
+
+ private :
+ void printModule(const Module *M);
+ void printSymbolTable(const SymbolTable &ST);
+ void printConstant(const Constant *CPV);
+ void printGlobal(const GlobalVariable *GV);
+ void printFunctionDecl(const Function *M); //for printing just the method
+ // declaration
+ void printFunctionArgument(const Argument *MA);
+
+ void printFunction(const Function *);
+
+ void outputFunction(const Function *, CLocalVars &);
+ void outputBasicBlock(const BasicBlock *);
+ };
+ /* END class CWriter */
+
+
+ /* CLASS InstLocalVarsVisitor */
+ class InstLocalVarsVisitor : public InstVisitor<InstLocalVarsVisitor> {
+ SlotCalculator& Table;
+
+ void handleTerminator(TerminatorInst *tI,int indx);
+
+ public:
+ CLocalVars CLV;
+
+ InstLocalVarsVisitor(SlotCalculator& table) : Table(table) {
+
+ }
+
+ void visitInstruction(Instruction *I) {
+ string tempostr;
+ if (I && I->hasName() && !isa<PHINode>(I)) {
+ tempostr = "llvm__" + makeNameProper(I->getName()) + "_" +
+ itostr((int)I->getType()->getUniqueID());
+ CLV.addLocalVar(I->getType(), tempostr);
+ } else if (I) {
+ int Slot = Table.getValSlot(I);
+ //if (Slot < 0) then it is a instruction with no
+ // value (like return void )
+ if ((Slot >= 0) && !isa<PHINode>(I)) {
+ tempostr = "llvm__tmp_";
+ tempostr += itostr(Slot) + "_" +
+ itostr((int)I->getType()->getUniqueID());
+ CLV.addLocalVar(I->getType(), tempostr);
+ }
+ }
+
+ }
+
+ void visitBranchInst(BranchInst *I) {
+ TerminatorInst *tI = cast<TerminatorInst>(I);
+ if (I->getNumOperands() > 1) {
+ handleTerminator(tI, 0);
+ handleTerminator(tI, 1);
+ }
+ else {
+ handleTerminator(tI, 0);
+ }
+ }
+
+ };
+
+
+ /* CLASS CInstPrintVisitor */
+
+ class CInstPrintVisitor: public InstVisitor<CInstPrintVisitor> {
+ CWriter& CW;
+ SlotCalculator& Table;
+ ostream &Out;
+ const Value *Operand;
+
+ void outputLValue(Instruction *);
+ void printPhiFromNextBlock(TerminatorInst *tI, int indx);
+
+ public:
+ CInstPrintVisitor (CWriter &cw, SlotCalculator& table, ostream& o)
+ : CW(cw), Table(table), Out(o) {
+
+ }
+
+ void visitCastInst(CastInst *I);
+ void visitCallInst(CallInst *I);
+ void visitShr(ShiftInst *I);
+ void visitShl(ShiftInst *I);
+ void visitReturnInst(ReturnInst *I);
+ void visitBranchInst(BranchInst *I);
+ void visitSwitchInst(SwitchInst *I);
+ void visitInvokeInst(InvokeInst *I) ;
+ void visitMallocInst(MallocInst *I);
+ void visitAllocaInst(AllocaInst *I);
+ void visitFreeInst(FreeInst *I);
+ void visitLoadInst(LoadInst *I);
+ void visitStoreInst(StoreInst *I);
+ void visitGetElementPtrInst(GetElementPtrInst *I);
+ void visitPHINode(PHINode *I);
+ void visitUnaryOperator (UnaryOperator *I);
+ void visitBinaryOperator(BinaryOperator *I);
+
+ };
+
+}
+
+void InstLocalVarsVisitor::handleTerminator(TerminatorInst *tI,int indx) {
+ BasicBlock *bb = tI->getSuccessor(indx);
+ BasicBlock::const_iterator insIt = bb->begin();
+ while (insIt != bb->end()) {
+ if (const PHINode *pI = dyn_cast<const PHINode>(*insIt)) {
+ //Its a phinode!
+ //Calculate the incoming index for this
+ int incindex = pI->getBasicBlockIndex(tI->getParent());
+ if (incindex != -1)
+ if (pI && pI->hasName()) {
+ string tempostr;
+ tempostr = "llvm__" + makeNameProper(pI->getName()) + "_" +
+ itostr((int)pI->getType()->getUniqueID());
+ CLV.addLocalVar(pI->getType(), tempostr) ;
+ } else {
+ string tempostr;
+ int Slot = Table.getValSlot(pI);
+ if (Slot >= 0) {
+ tempostr = "llvm__tmp_" + itostr(Slot) + "_"
+ + itostr((int)pI->getType()->getUniqueID());
+ CLV.addLocalVar(pI->getType(), tempostr);
+ }
+ }
+
+ }
+ else break;
+ insIt++;
+ }
+}
+
+/* Implementation of CInstPrintVisitor */
+
+void CInstPrintVisitor::outputLValue(Instruction *I) {
+ if (I && I->hasName() && !isa<PHINode>(I)) {
+ Out << "llvm__" << makeNameProper(I->getName()) << "_"
+ << I->getType()->getUniqueID() << " = ";
+ } else {
+ int Slot = Table.getValSlot(I);
+ //if (Slot < 0) then it is a instruction with no value (like return void )
+ if ((Slot >= 0) && !isa<PHINode>(I))
+ Out << "llvm__tmp_" << Slot << "_" << I->getType()->getUniqueID()
+ << " = ";
+ }
+}
+
+void CInstPrintVisitor::printPhiFromNextBlock(TerminatorInst *tI, int indx) {
+ BasicBlock *bb = tI->getSuccessor(indx);
+ BasicBlock::const_iterator insIt = bb->begin();
+ while (insIt != bb->end()) {
+ if (const PHINode *pI = dyn_cast<const PHINode>(*insIt)) {
+ //Its a phinode!
+ //Calculate the incoming index for this
+ int incindex = pI->getBasicBlockIndex(tI->getParent());
+ if (incindex != -1)
+ {
+ //now we have to do the printing
+ if (pI && pI->hasName()) {
+ Out << "llvm__" << makeNameProper(pI->getName()) << "_"
+ << pI->getType()->getUniqueID() << " = ";
+ } else {
+ int Slot = Table.getValSlot(pI);
+ if (Slot >= 0)
+ Out << "llvm__tmp_" << Slot << "_"
+ << pI->getType()->getUniqueID() << " = ";
+ }
+ CW.writeOperand(pI->getIncomingValue(incindex),false, Out);
+ Out << ";\n";
+ }
+ }
+ else break;
+ insIt++;
+ }
+}
+
+// Implement all "other" instructions, except for PHINode
+void CInstPrintVisitor::visitCastInst(CastInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.printType(I->getType(), Out);
+ Out << ")";
+ CW.writeOperand(Operand, false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitCallInst(CallInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ const PointerType *PTy = dyn_cast<PointerType>(Operand->getType());
+ const FunctionType *MTy = PTy
+ ? dyn_cast<FunctionType>(PTy->getElementType()):0;
+ const Type *RetTy = MTy ? MTy->getReturnType() : 0;
+
+ // If possible, print out the short form of the call instruction, but we can
+ // only do this if the first argument is a pointer to a nonvararg method,
+ // and if the value returned is not a pointer to a method.
+ //
+ if (RetTy && !MTy->isVarArg() &&
+ (!isa<PointerType>(RetTy)||
+ !isa<FunctionType>(cast<PointerType>(RetTy)))){
+ Out << " ";
+ Out << makeNameProper(Operand->getName());
+ } else {
+ Out << makeNameProper(Operand->getName());
+ }
+ Out << "(";
+ if (I->getNumOperands() > 1)
+ CW.writeOperand(I->getOperand(1), false, Out);
+ for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; ++op) {
+ Out << ",";
+ CW.writeOperand(I->getOperand(op), false, Out);
+ }
+
+ Out << " );\n";
+}
+
+void CInstPrintVisitor::visitShr(ShiftInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.writeOperand(Operand, false, Out);
+ Out << " >> ";
+ Out << "(";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ Out << "));\n";
+}
+
+void CInstPrintVisitor::visitShl(ShiftInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.writeOperand(Operand, false, Out);
+ Out << " << ";
+ Out << "(";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ Out << "));\n";
+}
+
+// Specific Instruction type classes... note that all of the casts are
+// neccesary because we use the instruction classes as opaque types...
+//
+void CInstPrintVisitor::visitReturnInst(ReturnInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "return ";
+ if (Operand)
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitBranchInst(BranchInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ TerminatorInst *tI = cast<TerminatorInst>(I);
+ if (I->getNumOperands() > 1) {
+ Out << "if (";
+ CW.writeOperand(I->getOperand(2),false, Out);
+ Out << ") {\n";
+ printPhiFromNextBlock(tI,0);
+ Out << " goto ";
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+ Out << "}" << "else {\n";
+ printPhiFromNextBlock(tI,1);
+ Out << " goto ";
+ CW.writeOperand(I->getOperand(1),false, Out);
+ Out << ";\n";
+ Out << "}\n";
+ } else {
+ printPhiFromNextBlock(tI,0);
+ Out << " goto ";
+ CW.writeOperand(Operand, false, Out);
+ Out << ";\n";
+ }
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitSwitchInst(SwitchInst *I) {
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitInvokeInst(InvokeInst *I) {
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitMallocInst(MallocInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ string tempstr = "";
+ Out << "(";
+ CW.printType(cast<const PointerType>(I->getType())->getElementType(), Out);
+ Out << "*) malloc(sizeof(";
+ CW.printTypeVar(cast<const PointerType>(I->getType())->getElementType(),
+ tempstr, Out);
+ Out << ")";
+ if (I->getNumOperands()) {
+ Out << " * " ;
+ CW.writeOperand(Operand, false, Out);
+ }
+ Out << ");";
+}
+
+void CInstPrintVisitor::visitAllocaInst(AllocaInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ string tempstr = "";
+ Out << "(";
+ CW.printTypeVar(I->getType(), tempstr, Out);
+ Out << ") alloca(sizeof(";
+ CW.printTypeVar(cast<const PointerType>(I->getType())->getElementType(),
+ tempstr, Out);
+ Out << ")";
+ if (I->getNumOperands()) {
+ Out << " * " ;
+ CW.writeOperand(Operand, false, Out);
+ }
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitFreeInst(FreeInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "free(";
+ CW.writeOperand(Operand, false, Out);
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitLoadInst(LoadInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getNumOperands() <= 1) {
+ Out << "*";
+ CW.writeOperand(Operand,false, Out);
+ }
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ const PointerType *PTy = dyn_cast<PointerType>(I->getType());
+ if (cast<const PointerType>(Operand->getType())->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if (arrtype && isa<GlobalValue>(Operand))
+ Out << "(&";
+ CW.writeOperand(Operand,false, Out);
+ for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 1) {
+ if (arrtype || !isa<GlobalValue>(Operand)) {
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(Operand) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitStoreInst(StoreInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getNumOperands() <= 2) {
+ Out << "*";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ }
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ if (cast<const PointerType>(I->getOperand(1)->getType())->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if (isa<GlobalValue>(I->getOperand(1)) && arrtype)
+ Out << "(&";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ for (unsigned i = 2, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 2) {
+ if (arrtype || !isa<GlobalValue>(I->getOperand(1))) {
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(I->getOperand(1)) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << " = ";
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitGetElementPtrInst(GetElementPtrInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << " &(";
+ if (I->getNumOperands() <= 1)
+ CW.writeOperand(Operand,false, Out);
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ if ((cast<const PointerType>(Operand->getType()))->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if ((isa<GlobalValue>(Operand)) && arrtype)
+ Out << "(&";
+ CW.writeOperand(Operand,false, Out);
+ for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 1) {
+ if (arrtype || !isa<GlobalValue>(Operand)){
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(Operand) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitPHINode(PHINode *I) {
+
+}
+
+void CInstPrintVisitor::visitUnaryOperator (UnaryOperator *I) {
+ if (I->getOpcode() == Instruction::Not) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "!(";
+ CW.writeOperand(Operand,false, Out);
+ Out << ");\n";
+ }
+ else {
+ Out << "<bad unary inst>\n";
+ }
+}
+
+void CInstPrintVisitor::visitBinaryOperator(BinaryOperator *I) {
+ //binary instructions, shift instructions, setCond instructions.
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getType()->getPrimitiveID() == Type::PointerTyID) {
+ Out << "(";
+ CW.printType(I->getType(), Out);
+ Out << ")";
+ }
+ Out << "(";
+ if (Operand->getType()->getPrimitiveID() == Type::PointerTyID)
+ Out << "(long long)";
+ CW.writeOperand(Operand,false, Out);
+ Out << getOpcodeOperName(I);
+ // Need the extra parenthisis if the second operand is < 0
+ Out << '(';
+ if (I->getOperand(1)->getType()->getPrimitiveID() == Type::PointerTyID)
+ Out << "(long long)";
+ CW.writeOperand(I->getOperand(1),false, Out);
+ Out << ')';
+ Out << ");\n";
+}
+
+/* END : CInstPrintVisitor implementation */
+
+void CWriter::printModule(const Module *M) {
+ // printing stdlib inclusion
+ // Out << "#include <stdlib.h>\n";
+
+ // Loop over the symbol table, emitting all named constants...
+ if (M->hasSymbolTable())
+ printSymbolTable(*M->getSymbolTable());
+
+ for_each(M->gbegin(), M->gend(),
+ bind_obj(this, &CWriter::printGlobal));
+
+ // First output all the declarations of the methods as C requires Functions
+ // be declared before they are used.
+ for_each(M->begin(), M->end(), bind_obj(this,&CWriter::printFunctionDecl));
+
+ // declaration of alloca
+ Out << "void *alloca(unsigned long size);\n";
+
+ // Output all of the methods...
+ for_each(M->begin(), M->end(), bind_obj(this,&CWriter::printFunction));
+}
+
+// prints the global constants
+void CWriter::printGlobal(const GlobalVariable *GV) {
+ string tempostr;
+ if (GV->hasName())
+ tempostr = "llvm__" + makeNameProper(GV->getName()) + "_" +
+ itostr((int)GV->getType()->getUniqueID());
+ if (GV->hasInternalLinkage()) Out << "static ";
+
+ printTypeVar(GV->getType()->getElementType(), tempostr, Out);
+
+ if (GV->hasInitializer()) {
+ Out << " = " ;
+ writeOperand(GV->getInitializer(), false, Out, false);
+ }
+
+ Out << ";\n";
+}
+
+// printSymbolTable - Run through symbol table looking for named constants
+// if a named constant is found, emit it's declaration...
+// Assuming that symbol table has only types and constants.
+void CWriter::printSymbolTable(const SymbolTable &ST) {
+ // GraphT G;
+ for (SymbolTable::const_iterator TI = ST.begin(); TI != ST.end(); ++TI) {
+ SymbolTable::type_const_iterator I = ST.type_begin(TI->first);
+ SymbolTable::type_const_iterator End = ST.type_end(TI->first);
+
+ // TODO
+ // Need to run through all the used types in the program
+ // FindUsedTypes &FUT = new FindUsedTypes();
+ // const std::set<const Type *> &UsedTypes = FUT.getTypes();
+ // Filter out the structures printing forward definitions for each of them
+ // and creating the dependency graph.
+ // Print forward definitions to all of them
+ // print the typedefs topologically sorted
+
+ // But for now we have
+ for (; I != End; ++I) {
+ const Value *V = I->second;
+ if (const Constant *CPV = dyn_cast<const Constant>(V)) {
+ printConstant(CPV);
+ } else if (const Type *Ty = dyn_cast<const Type>(V)) {
+ string tempostr;
+ string tempstr = "";
+ Out << "typedef ";
+ vector<const Type *> TypeStack;
+ tempostr = "llvm__" + I->first;
+ string TypeNameVar = calcTypeNameVar(Ty, TypeStack, TypeNames,
+ tempostr, tempstr);
+ Out << TypeNameVar << ";\n";
+ if (!isa<PointerType>(Ty) ||
+ !cast<PointerType>(Ty)->getElementType()->isPrimitiveType())
+ TypeNames.insert(std::make_pair(Ty, "llvm__"+I->first));
+ }
+ }
+ }
+}
+
+
+// printConstant - Print out a constant pool entry...
+//
+void CWriter::printConstant(const Constant *CPV) {
+ // TODO
+ // Dinakar : Don't know what to do with unnamed constants
+ // should do something about it later.
+
+ string tempostr;
+ if (CPV->hasName()) {
+ // Print out name...
+ tempostr = "llvm__" + makeNameProper(CPV->getName()) + "_" +
+ itostr((int)CPV->getType()->getUniqueID());
+ } else {
+ int Slot = Table.getValSlot(CPV); // slot number
+ if (Slot >= 0)
+ tempostr = "llvm__tmp_" + itostr(Slot) + "_" +
+ itostr((int)CPV->getType()->getUniqueID());
+ else
+ tempostr = "<badref>";
+ }
+
+ // Print out the constant type...
+ printTypeVar(CPV->getType(), tempostr, Out);
+
+ Out << " = ";
+ // Write the value out now...
+ writeOperand(CPV, false, Out, false);
+
+ Out << "\n";
+}
+
+
+
+// printFunctionDecl - Print method declaration
+//
+void CWriter::printFunctionDecl(const Function *M) {
+
+ if (M->hasInternalLinkage()) Out <<"static ";
+
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+
+ if (!M->isExternal()) {
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out);
+ Out << " " << makeNameProper(M->getName()) << "(";
+
+ for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
+ bind_obj(this, &CWriter::printFunctionArgument));
+ } else {
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out) ;
+ Out << " " << makeNameProper(M->getName()) << "(";
+
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+ for (FunctionType::ParamTypes::const_iterator I =
+ MT->getParamTypes().begin(),
+ E = MT->getParamTypes().end(); I != E; ++I) {
+ if (I != MT->getParamTypes().begin()) Out << ", ";
+ printType(*I, Out);
+ }
+ }
+
+ // Finish printing arguments...
+ if (MT->isVarArg()) {
+ if (MT->getParamTypes().size()) Out << ", ";
+ Out << "..."; // Output varargs portion of signature!
+ }
+ Out << ");\n";
+}
+
+void CWriter::printFunction(const Function *M) {
+ if (!M->isExternal()) {
+ // Process each of the basic blocks, gather information and call the
+ // output methods on the CLocalVars and Function* objects.
+
+ // gather local variable information for each basic block
+ InstLocalVarsVisitor ILV(Table);
+ ILV.visit((Function *)M);
+
+ // Spout out code.
+ outputFunction(M, ILV.CLV);
+
+ }
+}
+
+// printFunctionArgument - This member is called for every argument that
+// is passed into the method. Simply print it out
+//
+void CWriter::printFunctionArgument(const Argument *Arg) {
+ // Insert commas as we go... the first arg doesn't get a comma
+ string tempostr;
+ if (Arg != Arg->getParent()->getArgumentList().front()) Out << ", ";
+
+ // Output name, if available...
+ if (Arg->hasName()) {
+ tempostr = "llvm__" + makeNameProper(Arg->getName()) + "_" +
+ itostr((int)Arg->getType()->getUniqueID());
+ } else if (Table.getValSlot(Arg) < 0) {
+ tempostr = "<badref>";
+ }
+ else {
+ tempostr = "llvm__tmp_" + itostr(Table.getValSlot(Arg)) + "_" +
+ itostr((int)Arg->getType()->getUniqueID());
+ }
+ // Output type...
+ // printType(Arg->getType(), Out);
+ // Out << " " << tempostr;
+ printTypeVar (Arg->getType(), tempostr, Out);
+}
+
+void CWriter::outputFunction(const Function *M, CLocalVars& CLV) {
+ // Currently we have a no-loop-structure implementation
+ // Seems like its not really necessary.
+
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out) ;
+ Out << " " << makeNameProper(M->getName()) << "(";
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+
+ if (!M->isExternal()) {
+ for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
+ bind_obj(this, &CWriter::printFunctionArgument));
+ } else {
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+ for (FunctionType::ParamTypes::const_iterator I =
+ MT->getParamTypes().begin(),
+ E = MT->getParamTypes().end(); I != E; ++I) {
+ if (I != MT->getParamTypes().begin()) Out << ", ";
+ printType(*I, Out);
+ }
+ }
+
+ // Finish printing arguments...
+ if (MT->isVarArg()) {
+ if (MT->getParamTypes().size()) Out << ", ";
+ Out << "..."; // Output varargs portion of signature!
+ }
+ Out << ")\n";
+
+ if (!M->isExternal()) {
+ Out << "{\n";
+ // Loop over the symbol table, emitting all named constants...
+ if (M->hasSymbolTable())
+ printSymbolTable(*M->getSymbolTable());
+
+ // print the local variables
+ // we assume that every local variable is alloca'ed in the C code.
+ std::map<const Type*, VarListType> locals;
+ locals = CLV.LocalVars;
+
+ map<const Type*, VarListType>::iterator iter;
+ for (iter = locals.begin(); iter != locals.end(); iter++) {
+ VarListType::iterator listiter;
+ for (listiter = iter->second.begin(); listiter != iter->second.end();
+ listiter++) {
+ // printType(iter->first, Out);
+ // Out << " " << *listiter << ";\n";
+ printTypeVar(iter->first, *listiter, Out);
+ Out << ";\n";
+ }
+ }
+
+ // print the basic blocks
+ Function::const_iterator iterBB;
+ for (iterBB = M->begin(); iterBB != M->end(); ++iterBB)
+ outputBasicBlock(*iterBB);
+
+ Out << "}\n";
+ }
+}
+
+void CWriter::outputBasicBlock(const BasicBlock* BB) {
+
+ if (BB->hasName()) { // Print out the label if it exists...
+ Out << "llvm__" << makeNameProper(BB->getName()) << "_"
+ << BB->getType()->getUniqueID() << ":\n";
+ } else {
+ int Slot = Table.getValSlot(BB);
+ Out << "llvm__tmp_";
+ if (Slot >= 0)
+ Out << Slot << "_" << BB->getType()->getUniqueID() << ":\n";
+ // Extra newline seperates out label's
+ else
+ Out << "<badref>\n";
+ }
+
+ // Output all of the instructions in the basic block...
+ // print the basic blocks
+ CInstPrintVisitor CIPV(*this, Table, Out);
+ CIPV.visit((BasicBlock *) BB);
+}
+
+// printTypeVar - Go to extreme measures to attempt to print out a short,
+// symbolic version of a type name.
+//
+ostream& CWriter::printTypeVar(const Type *Ty, string VariableName,
+ ostream &Out) {
+ return printTypeVarInt(Out, Ty, TypeNames, VariableName);
+}
+
+// printType - Go to extreme measures to attempt to print out a short, symbolic
+// version of a type name.
+ostream& CWriter::printType(const Type *Ty, ostream &Out) {
+ return printTypeInt(Out, Ty, TypeNames);
+}
+
+
+void CWriter::writeOperand(const Value *Operand, bool PrintType,
+ ostream &Out, bool PrintName = true) {
+ if (PrintType){
+ string tempstr = "";
+ Out << " ";
+ printType(Operand->getType(), Out);
+ }
+ vector<const Type *> TypeStack;
+ string MInfo = "";
+ string OperandType = calcTypeName(Operand->getType(), TypeStack, TypeNames,
+ &MInfo);
+ if (MInfo != "")
+ OperandType += ")" + MInfo;
+ WriteCOperandInternal(Out, Operand, PrintName, &Table, OperandType);
+}
+
+
+//===----------------------------------------------------------------------===//
+// External Interface declaration
+//===----------------------------------------------------------------------===//
+
+
+void WriteToC(const Module *C, ostream &Out) {
+ assert(C && "You can't write a null module!!");
+ SlotCalculator SlotTable(C, true);
+ CWriter W(Out, SlotTable, C);
+ W.write(C);
+ Out.flush();
+}
+
--- /dev/null
+
+LEVEL = ../..
+
+LIBRARYNAME = cwriter
+
+include $(LEVEL)/Makefile.common
+
--- /dev/null
+//===-- Writer.cpp - Library for writing C files -----------------*- C++ -*--=//
+//
+// This library implements the functionality defined in llvm/Assembly/CWriter.h
+// and CLocalVars.h
+//
+// TODO : Recursive types.
+//===-----------------------------------------------------------------------==//
+#include "llvm/Assembly/CWriter.h"
+#include "CLocalVars.h"
+#include "llvm/SlotCalculator.h"
+#include "llvm/Module.h"
+#include "llvm/Argument.h"
+#include "llvm/Function.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Constants.h"
+#include "llvm/GlobalVariable.h"
+#include "llvm/BasicBlock.h"
+#include "llvm/iMemory.h"
+#include "llvm/iTerminators.h"
+#include "llvm/iPHINode.h"
+#include "llvm/iOther.h"
+#include "llvm/SymbolTable.h"
+#include "llvm/Support/InstVisitor.h"
+#include "Support/StringExtras.h"
+#include "Support/STLExtras.h"
+
+#include <algorithm>
+#include <strstream>
+using std::string;
+using std::map;
+using std::vector;
+using std::ostream;
+
+/* Implementation of the CLocalVars methods */
+
+// Appends a variable to the LocalVars map if it does not already exist
+// Also check that the type exists on the map.
+void CLocalVars::addLocalVar(const Type *t, const string & var) {
+ if (!LocalVars.count(t) ||
+ find(LocalVars[t].begin(), LocalVars[t].end(), var)
+ == LocalVars[t].end()) {
+ LocalVars[t].push_back(var);
+ }
+}
+
+/* Writer.cpp */
+static string calcTypeNameVar(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string VariableName, string NameSoFar);
+
+static std::string getConstStrValue(const Constant* CPV);
+
+
+//
+//Getting opcodes in terms of the operator
+//
+static const char *getOpcodeOperName(const Instruction *I) {
+ switch (I->getOpcode()) {
+ // Standard binary operators...
+ case Instruction::Add: return "+";
+ case Instruction::Sub: return "-";
+ case Instruction::Mul: return "*";
+ case Instruction::Div: return "/";
+ case Instruction::Rem: return "%";
+
+ // Logical operators...
+ case Instruction::And: return "&";
+ case Instruction::Or: return "|";
+ case Instruction::Xor: return "^";
+
+ // SetCond operators...
+ case Instruction::SetEQ: return "==";
+ case Instruction::SetNE: return "!=";
+ case Instruction::SetLE: return "<=";
+ case Instruction::SetGE: return ">=";
+ case Instruction::SetLT: return "<";
+ case Instruction::SetGT: return ">";
+
+ //ShiftInstruction...
+
+ case Instruction::Shl : return "<<";
+ case Instruction::Shr : return ">>";
+
+ default:
+ cerr << "Invalid operator type!" << I->getOpcode() << "\n";
+ abort();
+ }
+ return 0;
+}
+
+
+// We dont want identifier names with ., space, - in them.
+// So we replace them with _
+static string makeNameProper(string x) {
+ string tmp;
+ for (string::iterator sI = x.begin(), sEnd = x.end(); sI != sEnd; sI++) {
+ if (*sI == '.')
+ tmp += '_';
+ else if (*sI == ' ')
+ tmp += '_';
+ else if (*sI == '-')
+ tmp += "__";
+ else
+ tmp += *sI;
+ }
+ return tmp;
+}
+
+static string getConstantName(const Constant *CPV) {
+ return CPV->getName();
+}
+
+
+static std::string getConstArrayStrValue(const Constant* CPV) {
+ std::string Result;
+
+ // As a special case, print the array as a string if it is an array of
+ // ubytes or an array of sbytes with positive values.
+ //
+ const Type *ETy = cast<ArrayType>(CPV->getType())->getElementType();
+ bool isString = (ETy == Type::SByteTy || ETy == Type::UByteTy);
+
+ if (ETy == Type::SByteTy) {
+ for (unsigned i = 0; i < CPV->getNumOperands(); ++i)
+ if (ETy == Type::SByteTy &&
+ cast<ConstantSInt>(CPV->getOperand(i))->getValue() < 0) {
+ isString = false;
+ break;
+ }
+ }
+
+ if (isString) {
+ Result = "\"";
+ for (unsigned i = 0; i < CPV->getNumOperands(); ++i) {
+ unsigned char C = (ETy == Type::SByteTy) ?
+ (unsigned char)cast<ConstantSInt>(CPV->getOperand(i))->getValue() :
+ (unsigned char)cast<ConstantUInt>(CPV->getOperand(i))->getValue();
+
+ if (isprint(C)) {
+ Result += C;
+ } else {
+ Result += '\\';
+ Result += 'x';
+ Result += ( C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A');
+ Result += ((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A');
+ }
+ }
+ Result += "\"";
+
+ } else {
+ Result = "{";
+ if (CPV->getNumOperands()) {
+ Result += " " + getConstStrValue(cast<Constant>(CPV->getOperand(0)));
+ for (unsigned i = 1; i < CPV->getNumOperands(); i++)
+ Result += ", " + getConstStrValue(cast<Constant>(CPV->getOperand(i)));
+ }
+ Result += " }";
+ }
+
+ return Result;
+}
+
+static std::string getConstStructStrValue(const Constant* CPV) {
+ std::string Result = "{";
+ if (CPV->getNumOperands()) {
+ Result += " " + getConstStrValue(cast<Constant>(CPV->getOperand(0)));
+ for (unsigned i = 1; i < CPV->getNumOperands(); i++)
+ Result += ", " + getConstStrValue(cast<Constant>(CPV->getOperand(i)));
+ }
+
+ return Result + " }";
+}
+
+// our own getStrValue function for constant initializers
+static std::string getConstStrValue(const Constant* CPV) {
+ // Does not handle null pointers, that needs to be checked explicitly
+ string tempstr;
+ if (CPV == ConstantBool::False)
+ return "0";
+ else if (CPV == ConstantBool::True)
+ return "1";
+
+ else if (isa<ConstantArray>(CPV)) {
+ tempstr = getConstArrayStrValue(CPV);
+ }
+ else if (isa<ConstantStruct>(CPV)) {
+ tempstr = getConstStructStrValue(CPV);
+ }
+ else if (ConstantUInt *CUI = dyn_cast<ConstantUInt>(CPV)) {
+ tempstr = utostr((long long unsigned int) CUI->getValue());
+ }
+ else if (ConstantSInt *CSI = dyn_cast<ConstantSInt>(CPV)) {
+ tempstr = itostr(CSI->getValue());
+ }
+ else if (ConstantFP *CFP = dyn_cast<ConstantFP>(CPV)) {
+ tempstr = ftostr(CFP->getValue());
+ }
+
+ if (CPV->getType() == Type::ULongTy)
+ tempstr += "ull";
+ else if (CPV->getType() == Type::LongTy)
+ tempstr += "ll";
+ else if (CPV->getType() == Type::UIntTy ||
+ CPV->getType() == Type::UShortTy)
+ tempstr += "u";
+
+ return tempstr;
+
+}
+
+// WriteCOperand - Write the name of the specified value out to the specified
+// ostream. This can be useful when you just want to print int %0 not the
+// whole instruction that generated it.
+//
+static void WriteCOperandInternal(ostream &Out, const Value *V,
+ bool PrintName, SlotCalculator *Table,
+ string &OperandType) {
+ int Slot;
+ if (PrintName && V->hasName()) {
+ // If V has a name.
+ Out << "llvm__" << makeNameProper(V->getName()) << "_" <<
+ (V->getType())->getUniqueID();
+ return;
+ }
+ else if (const Constant *CPV = dyn_cast<const Constant>(V)) {
+ if (isa<ConstantPointerNull>(CPV)) {
+ Out << "(" << OperandType << ")0";
+ }
+ else
+ Out << getConstStrValue(CPV);
+ }
+ else {
+ Slot = Table->getValSlot(V);
+ if (Slot >= 0)
+ Out << "llvm__tmp_" << Slot << "_" << V->getType()->getUniqueID();
+ else if (PrintName)
+ Out << "<badref>";
+ }
+}
+
+// Internal function
+// Essentially pass the Type* variable, an empty typestack and this prints
+// out the C type
+static string calcTypeName(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string *FunctionInfo) {
+
+ // Takin' care of the fact that boolean would be int in C
+ // and that ushort would be unsigned short etc.
+
+ // Base Case
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return "int";
+ break;
+ case Type::UByteTyID:
+ return "unsigned char";
+ break;
+ case Type::SByteTyID:
+ return "signed char";
+ break;
+ case Type::UShortTyID:
+ return "unsigned long long";
+ break;
+ case Type::ULongTyID:
+ return "unsigned long long";
+ break;
+ case Type::LongTyID:
+ return "signed long long";
+ break;
+ case Type::UIntTyID:
+ return "unsigned int";
+ break;
+ default :
+ return Ty->getDescription();
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end())
+ return I->second;
+
+ // Check to see if the Type is already on the stack...
+ unsigned Slot = 0, CurSize = TypeStack.size();
+ while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
+
+ // This is another base case for the recursion. In this case, we know
+ // that we have looped back to a type that we have previously visited.
+ // Generate the appropriate upreference to handle this.
+ //
+ if (Slot < CurSize)
+ return "\\" + utostr(CurSize-Slot); // Here's the upreference
+
+ TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
+
+ string Result;
+ string MInfo = "";
+ switch (Ty->getPrimitiveID()) {
+ case Type::FunctionTyID: {
+ const FunctionType *MTy = cast<const FunctionType>(Ty);
+ Result = calcTypeName(MTy->getReturnType(), TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ Result += "(";
+ *FunctionInfo += " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = MTy->getParamTypes().begin(),
+ E = MTy->getParamTypes().end(); I != E; ++I) {
+ if (I != MTy->getParamTypes().begin())
+ *FunctionInfo += ", ";
+ MInfo = "";
+ *FunctionInfo += calcTypeName(*I, TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ }
+ if (MTy->isVarArg()) {
+ if (!MTy->getParamTypes().empty())
+ *FunctionInfo += ", ";
+ *FunctionInfo += "...";
+ }
+ *FunctionInfo += ")";
+ break;
+ }
+ case Type::StructTyID: {
+ string tempstr = "";
+ const StructType *STy = cast<const StructType>(Ty);
+ Result = " struct {\n ";
+ int indx = 0;
+ for (StructType::ElementTypes::const_iterator
+ I = STy->getElementTypes().begin(),
+ E = STy->getElementTypes().end(); I != E; ++I) {
+ Result += calcTypeNameVar(*I, TypeStack, TypeNames,
+ "field" + itostr(indx++), tempstr);
+ Result += ";\n ";
+ }
+ Result += " } ";
+ break;
+ }
+ case Type::PointerTyID:
+ Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(),
+ TypeStack, TypeNames, &MInfo);
+ Result += "*";
+ break;
+ case Type::ArrayTyID: {
+ const ArrayType *ATy = cast<const ArrayType>(Ty);
+ int NumElements = ATy->getNumElements();
+ Result = calcTypeName(ATy->getElementType(), TypeStack, TypeNames, &MInfo);
+ Result += "*";
+ break;
+ }
+ default:
+ assert(0 && "Unhandled case in getTypeProps!");
+ Result = "<error>";
+ }
+
+ TypeStack.pop_back(); // Remove self from stack...
+ return Result;
+}
+
+// Internal function
+// Pass the Type* variable and and the variable name and this prints out the
+// variable declaration.
+// This is different from calcTypeName because if you need to declare an array
+// the size of the array would appear after the variable name itself
+// For eg. int a[10];
+static string calcTypeNameVar(const Type *Ty, vector<const Type *> &TypeStack,
+ map<const Type *, string> &TypeNames,
+ string VariableName, string NameSoFar) {
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return "int " + NameSoFar + VariableName;
+ break;
+ case Type::UByteTyID:
+ return "unsigned char " + NameSoFar + VariableName;
+ break;
+ case Type::SByteTyID:
+ return "signed char " + NameSoFar + VariableName;
+ break;
+ case Type::UShortTyID:
+ return "unsigned long long " + NameSoFar + VariableName;
+ break;
+ case Type::ULongTyID:
+ return "unsigned long long " + NameSoFar + VariableName;
+ break;
+ case Type::LongTyID:
+ return "signed long long " + NameSoFar + VariableName;
+ break;
+ case Type::UIntTyID:
+ return "unsigned int " + NameSoFar + VariableName;
+ break;
+ default :
+ return Ty->getDescription() + " " + NameSoFar + VariableName;
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end())
+ return I->second + " " + NameSoFar + VariableName;
+
+ // Check to see if the Type is already on the stack...
+ unsigned Slot = 0, CurSize = TypeStack.size();
+ while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
+
+ if (Slot < CurSize)
+ return "\\" + utostr(CurSize-Slot) + " " + NameSoFar + VariableName;
+ // Here's the upreference
+
+ TypeStack.push_back(Ty); // Recursive case: Add us to the stack..
+
+ string Result;
+ string tempstr = "";
+
+ switch (Ty->getPrimitiveID()) {
+ case Type::FunctionTyID: {
+ string MInfo = "";
+ const FunctionType *MTy = cast<const FunctionType>(Ty);
+ Result += calcTypeName(MTy->getReturnType(), TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ Result += " " + NameSoFar + VariableName;
+ Result += " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = MTy->getParamTypes().begin(),
+ E = MTy->getParamTypes().end(); I != E; ++I) {
+ if (I != MTy->getParamTypes().begin())
+ Result += ", ";
+ MInfo = "";
+ Result += calcTypeName(*I, TypeStack, TypeNames, &MInfo);
+ if (MInfo != "")
+ Result += ") " + MInfo;
+ }
+ if (MTy->isVarArg()) {
+ if (!MTy->getParamTypes().empty())
+ Result += ", ";
+ Result += "...";
+ }
+ Result += ")";
+ break;
+ }
+ case Type::StructTyID: {
+ const StructType *STy = cast<const StructType>(Ty);
+ Result = " struct {\n ";
+ int indx = 0;
+ for (StructType::ElementTypes::const_iterator
+ I = STy->getElementTypes().begin(),
+ E = STy->getElementTypes().end(); I != E; ++I) {
+ Result += calcTypeNameVar(*I, TypeStack, TypeNames,
+ "field" + itostr(indx++), "");
+ Result += ";\n ";
+ }
+ Result += " }";
+ Result += " " + NameSoFar + VariableName;
+ break;
+ }
+
+ case Type::PointerTyID: {
+ Result = calcTypeNameVar(cast<const PointerType>(Ty)->getElementType(),
+ TypeStack, TypeNames, tempstr,
+ "(*" + NameSoFar + VariableName + ")");
+ break;
+ }
+
+ case Type::ArrayTyID: {
+ const ArrayType *ATy = cast<const ArrayType>(Ty);
+ int NumElements = ATy->getNumElements();
+ Result = calcTypeNameVar(ATy->getElementType(), TypeStack, TypeNames,
+ tempstr, NameSoFar + VariableName + "[" +
+ itostr(NumElements) + "]");
+ break;
+ }
+ default:
+ assert(0 && "Unhandled case in getTypeProps!");
+ Result = "<error>";
+ }
+
+ TypeStack.pop_back(); // Remove self from stack...
+ return Result;
+}
+
+// printTypeVarInt - The internal guts of printing out a type that has a
+// potentially named portion and the variable associated with the type.
+static ostream &printTypeVarInt(ostream &Out, const Type *Ty,
+ map<const Type *, string> &TypeNames,
+ string VariableName) {
+ // Primitive types always print out their description, regardless of whether
+ // they have been named or not.
+
+ // Booleans have to be specially handled to be printed as ints with values
+ // 0 or 1;
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return Out << "int " << VariableName;
+ break;
+ case Type::UByteTyID:
+ return Out << "unsigned char " << VariableName;
+ break;
+ case Type::SByteTyID:
+ return Out << "signed char " << VariableName;
+ break;
+ case Type::UShortTyID:
+ return Out << "unsigned long long " << VariableName;
+ break;
+ case Type::ULongTyID:
+ return Out << "unsigned long long " << VariableName;
+ break;
+ case Type::LongTyID:
+ return Out << "signed long long " << VariableName;
+ break;
+ case Type::UIntTyID:
+ return Out << "unsigned int " << VariableName;
+ break;
+ default :
+ return Out << Ty->getDescription() << " " << VariableName;
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end()) return Out << I->second << " " << VariableName;
+
+ // Otherwise we have a type that has not been named but is a derived type.
+ // Carefully recurse the type hierarchy to print out any contained symbolic
+ // names.
+ //
+ vector<const Type *> TypeStack;
+ string TypeNameVar, tempstr = "";
+ TypeNameVar = calcTypeNameVar(Ty, TypeStack, TypeNames, VariableName,
+ tempstr);
+ return Out << TypeNameVar;
+ // TODO: Check what happens to caching
+ // TypeNames.insert(std::make_pair(Ty, TypeName));
+ //Cache type name for later use
+}
+
+// Internal guts of printing a type name
+static ostream &printTypeInt(ostream &Out, const Type *Ty,
+ map<const Type *, string> &TypeNames) {
+ // Primitive types always print out their description, regardless of whether
+ // they have been named or not.
+
+ // Booleans have to be specially handled to be printed as ints with values
+ // 0 or 1;
+
+ if (Ty->isPrimitiveType())
+ switch (Ty->getPrimitiveID()) {
+ case Type::BoolTyID:
+ return Out << "int";
+ break;
+ case Type::UByteTyID:
+ return Out << "unsigned char";
+ break;
+ case Type::SByteTyID:
+ return Out << "signed char";
+ break;
+ case Type::UShortTyID:
+ return Out << "unsigned long long";
+ break;
+ case Type::ULongTyID:
+ return Out << "unsigned long long";
+ break;
+ case Type::LongTyID:
+ return Out << "signed long long";
+ break;
+ case Type::UIntTyID:
+ return Out << "unsigned int";
+ break;
+ default :
+ return Out << Ty->getDescription();
+ }
+
+ // Check to see if the type is named.
+ map<const Type *, string>::iterator I = TypeNames.find(Ty);
+ if (I != TypeNames.end()) return Out << I->second;
+
+ // Otherwise we have a type that has not been named but is a derived type.
+ // Carefully recurse the type hierarchy to print out any contained symbolic
+ // names.
+ //
+ vector<const Type *> TypeStack;
+ string MInfo = "";
+ string TypeName = calcTypeName(Ty, TypeStack, TypeNames, &MInfo);
+ // TypeNames.insert(std::make_pair(Ty, TypeName));
+ //Cache type name for later use
+ if (MInfo != "")
+ return Out << TypeName << ")" << MInfo;
+ else
+ return Out << TypeName;
+}
+
+namespace {
+
+ //Internal CWriter class mimics AssemblyWriter.
+ class CWriter {
+ ostream& Out;
+ SlotCalculator &Table;
+ const Module *TheModule;
+ map<const Type *, string> TypeNames;
+ public:
+ inline CWriter(ostream &o, SlotCalculator &Tab, const Module *M)
+ : Out(o), Table(Tab), TheModule(M) {
+
+ }
+
+ inline void write(const Module *M) { printModule(M); }
+
+ ostream& printTypeVar(const Type *Ty, string VariableName, ostream &Out);
+ ostream& printType(const Type *Ty, ostream &Out);
+ void writeOperand(const Value *Operand, bool PrintType,ostream &Out,
+ bool PrintName = true);
+
+ private :
+ void printModule(const Module *M);
+ void printSymbolTable(const SymbolTable &ST);
+ void printConstant(const Constant *CPV);
+ void printGlobal(const GlobalVariable *GV);
+ void printFunctionDecl(const Function *M); //for printing just the method
+ // declaration
+ void printFunctionArgument(const Argument *MA);
+
+ void printFunction(const Function *);
+
+ void outputFunction(const Function *, CLocalVars &);
+ void outputBasicBlock(const BasicBlock *);
+ };
+ /* END class CWriter */
+
+
+ /* CLASS InstLocalVarsVisitor */
+ class InstLocalVarsVisitor : public InstVisitor<InstLocalVarsVisitor> {
+ SlotCalculator& Table;
+
+ void handleTerminator(TerminatorInst *tI,int indx);
+
+ public:
+ CLocalVars CLV;
+
+ InstLocalVarsVisitor(SlotCalculator& table) : Table(table) {
+
+ }
+
+ void visitInstruction(Instruction *I) {
+ string tempostr;
+ if (I && I->hasName() && !isa<PHINode>(I)) {
+ tempostr = "llvm__" + makeNameProper(I->getName()) + "_" +
+ itostr((int)I->getType()->getUniqueID());
+ CLV.addLocalVar(I->getType(), tempostr);
+ } else if (I) {
+ int Slot = Table.getValSlot(I);
+ //if (Slot < 0) then it is a instruction with no
+ // value (like return void )
+ if ((Slot >= 0) && !isa<PHINode>(I)) {
+ tempostr = "llvm__tmp_";
+ tempostr += itostr(Slot) + "_" +
+ itostr((int)I->getType()->getUniqueID());
+ CLV.addLocalVar(I->getType(), tempostr);
+ }
+ }
+
+ }
+
+ void visitBranchInst(BranchInst *I) {
+ TerminatorInst *tI = cast<TerminatorInst>(I);
+ if (I->getNumOperands() > 1) {
+ handleTerminator(tI, 0);
+ handleTerminator(tI, 1);
+ }
+ else {
+ handleTerminator(tI, 0);
+ }
+ }
+
+ };
+
+
+ /* CLASS CInstPrintVisitor */
+
+ class CInstPrintVisitor: public InstVisitor<CInstPrintVisitor> {
+ CWriter& CW;
+ SlotCalculator& Table;
+ ostream &Out;
+ const Value *Operand;
+
+ void outputLValue(Instruction *);
+ void printPhiFromNextBlock(TerminatorInst *tI, int indx);
+
+ public:
+ CInstPrintVisitor (CWriter &cw, SlotCalculator& table, ostream& o)
+ : CW(cw), Table(table), Out(o) {
+
+ }
+
+ void visitCastInst(CastInst *I);
+ void visitCallInst(CallInst *I);
+ void visitShr(ShiftInst *I);
+ void visitShl(ShiftInst *I);
+ void visitReturnInst(ReturnInst *I);
+ void visitBranchInst(BranchInst *I);
+ void visitSwitchInst(SwitchInst *I);
+ void visitInvokeInst(InvokeInst *I) ;
+ void visitMallocInst(MallocInst *I);
+ void visitAllocaInst(AllocaInst *I);
+ void visitFreeInst(FreeInst *I);
+ void visitLoadInst(LoadInst *I);
+ void visitStoreInst(StoreInst *I);
+ void visitGetElementPtrInst(GetElementPtrInst *I);
+ void visitPHINode(PHINode *I);
+ void visitUnaryOperator (UnaryOperator *I);
+ void visitBinaryOperator(BinaryOperator *I);
+
+ };
+
+}
+
+void InstLocalVarsVisitor::handleTerminator(TerminatorInst *tI,int indx) {
+ BasicBlock *bb = tI->getSuccessor(indx);
+ BasicBlock::const_iterator insIt = bb->begin();
+ while (insIt != bb->end()) {
+ if (const PHINode *pI = dyn_cast<const PHINode>(*insIt)) {
+ //Its a phinode!
+ //Calculate the incoming index for this
+ int incindex = pI->getBasicBlockIndex(tI->getParent());
+ if (incindex != -1)
+ if (pI && pI->hasName()) {
+ string tempostr;
+ tempostr = "llvm__" + makeNameProper(pI->getName()) + "_" +
+ itostr((int)pI->getType()->getUniqueID());
+ CLV.addLocalVar(pI->getType(), tempostr) ;
+ } else {
+ string tempostr;
+ int Slot = Table.getValSlot(pI);
+ if (Slot >= 0) {
+ tempostr = "llvm__tmp_" + itostr(Slot) + "_"
+ + itostr((int)pI->getType()->getUniqueID());
+ CLV.addLocalVar(pI->getType(), tempostr);
+ }
+ }
+
+ }
+ else break;
+ insIt++;
+ }
+}
+
+/* Implementation of CInstPrintVisitor */
+
+void CInstPrintVisitor::outputLValue(Instruction *I) {
+ if (I && I->hasName() && !isa<PHINode>(I)) {
+ Out << "llvm__" << makeNameProper(I->getName()) << "_"
+ << I->getType()->getUniqueID() << " = ";
+ } else {
+ int Slot = Table.getValSlot(I);
+ //if (Slot < 0) then it is a instruction with no value (like return void )
+ if ((Slot >= 0) && !isa<PHINode>(I))
+ Out << "llvm__tmp_" << Slot << "_" << I->getType()->getUniqueID()
+ << " = ";
+ }
+}
+
+void CInstPrintVisitor::printPhiFromNextBlock(TerminatorInst *tI, int indx) {
+ BasicBlock *bb = tI->getSuccessor(indx);
+ BasicBlock::const_iterator insIt = bb->begin();
+ while (insIt != bb->end()) {
+ if (const PHINode *pI = dyn_cast<const PHINode>(*insIt)) {
+ //Its a phinode!
+ //Calculate the incoming index for this
+ int incindex = pI->getBasicBlockIndex(tI->getParent());
+ if (incindex != -1)
+ {
+ //now we have to do the printing
+ if (pI && pI->hasName()) {
+ Out << "llvm__" << makeNameProper(pI->getName()) << "_"
+ << pI->getType()->getUniqueID() << " = ";
+ } else {
+ int Slot = Table.getValSlot(pI);
+ if (Slot >= 0)
+ Out << "llvm__tmp_" << Slot << "_"
+ << pI->getType()->getUniqueID() << " = ";
+ }
+ CW.writeOperand(pI->getIncomingValue(incindex),false, Out);
+ Out << ";\n";
+ }
+ }
+ else break;
+ insIt++;
+ }
+}
+
+// Implement all "other" instructions, except for PHINode
+void CInstPrintVisitor::visitCastInst(CastInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.printType(I->getType(), Out);
+ Out << ")";
+ CW.writeOperand(Operand, false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitCallInst(CallInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ const PointerType *PTy = dyn_cast<PointerType>(Operand->getType());
+ const FunctionType *MTy = PTy
+ ? dyn_cast<FunctionType>(PTy->getElementType()):0;
+ const Type *RetTy = MTy ? MTy->getReturnType() : 0;
+
+ // If possible, print out the short form of the call instruction, but we can
+ // only do this if the first argument is a pointer to a nonvararg method,
+ // and if the value returned is not a pointer to a method.
+ //
+ if (RetTy && !MTy->isVarArg() &&
+ (!isa<PointerType>(RetTy)||
+ !isa<FunctionType>(cast<PointerType>(RetTy)))){
+ Out << " ";
+ Out << makeNameProper(Operand->getName());
+ } else {
+ Out << makeNameProper(Operand->getName());
+ }
+ Out << "(";
+ if (I->getNumOperands() > 1)
+ CW.writeOperand(I->getOperand(1), false, Out);
+ for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; ++op) {
+ Out << ",";
+ CW.writeOperand(I->getOperand(op), false, Out);
+ }
+
+ Out << " );\n";
+}
+
+void CInstPrintVisitor::visitShr(ShiftInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.writeOperand(Operand, false, Out);
+ Out << " >> ";
+ Out << "(";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ Out << "));\n";
+}
+
+void CInstPrintVisitor::visitShl(ShiftInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "(";
+ CW.writeOperand(Operand, false, Out);
+ Out << " << ";
+ Out << "(";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ Out << "));\n";
+}
+
+// Specific Instruction type classes... note that all of the casts are
+// neccesary because we use the instruction classes as opaque types...
+//
+void CInstPrintVisitor::visitReturnInst(ReturnInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "return ";
+ if (Operand)
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitBranchInst(BranchInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ TerminatorInst *tI = cast<TerminatorInst>(I);
+ if (I->getNumOperands() > 1) {
+ Out << "if (";
+ CW.writeOperand(I->getOperand(2),false, Out);
+ Out << ") {\n";
+ printPhiFromNextBlock(tI,0);
+ Out << " goto ";
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+ Out << "}" << "else {\n";
+ printPhiFromNextBlock(tI,1);
+ Out << " goto ";
+ CW.writeOperand(I->getOperand(1),false, Out);
+ Out << ";\n";
+ Out << "}\n";
+ } else {
+ printPhiFromNextBlock(tI,0);
+ Out << " goto ";
+ CW.writeOperand(Operand, false, Out);
+ Out << ";\n";
+ }
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitSwitchInst(SwitchInst *I) {
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitInvokeInst(InvokeInst *I) {
+ Out << "\n";
+}
+
+void CInstPrintVisitor::visitMallocInst(MallocInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ string tempstr = "";
+ Out << "(";
+ CW.printType(cast<const PointerType>(I->getType())->getElementType(), Out);
+ Out << "*) malloc(sizeof(";
+ CW.printTypeVar(cast<const PointerType>(I->getType())->getElementType(),
+ tempstr, Out);
+ Out << ")";
+ if (I->getNumOperands()) {
+ Out << " * " ;
+ CW.writeOperand(Operand, false, Out);
+ }
+ Out << ");";
+}
+
+void CInstPrintVisitor::visitAllocaInst(AllocaInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ string tempstr = "";
+ Out << "(";
+ CW.printTypeVar(I->getType(), tempstr, Out);
+ Out << ") alloca(sizeof(";
+ CW.printTypeVar(cast<const PointerType>(I->getType())->getElementType(),
+ tempstr, Out);
+ Out << ")";
+ if (I->getNumOperands()) {
+ Out << " * " ;
+ CW.writeOperand(Operand, false, Out);
+ }
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitFreeInst(FreeInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "free(";
+ CW.writeOperand(Operand, false, Out);
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitLoadInst(LoadInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getNumOperands() <= 1) {
+ Out << "*";
+ CW.writeOperand(Operand,false, Out);
+ }
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ const PointerType *PTy = dyn_cast<PointerType>(I->getType());
+ if (cast<const PointerType>(Operand->getType())->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if (arrtype && isa<GlobalValue>(Operand))
+ Out << "(&";
+ CW.writeOperand(Operand,false, Out);
+ for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 1) {
+ if (arrtype || !isa<GlobalValue>(Operand)) {
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(Operand) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitStoreInst(StoreInst *I) {
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getNumOperands() <= 2) {
+ Out << "*";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ }
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ if (cast<const PointerType>(I->getOperand(1)->getType())->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if (isa<GlobalValue>(I->getOperand(1)) && arrtype)
+ Out << "(&";
+ CW.writeOperand(I->getOperand(1), false, Out);
+ for (unsigned i = 2, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 2) {
+ if (arrtype || !isa<GlobalValue>(I->getOperand(1))) {
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(I->getOperand(1)) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << " = ";
+ CW.writeOperand(Operand,false, Out);
+ Out << ";\n";
+}
+
+void CInstPrintVisitor::visitGetElementPtrInst(GetElementPtrInst *I) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << " &(";
+ if (I->getNumOperands() <= 1)
+ CW.writeOperand(Operand,false, Out);
+ else {
+ //Check if it is an array type or struct type ptr!
+ int arrtype = 1;
+ if ((cast<const PointerType>(Operand->getType()))->getElementType()->getPrimitiveID() == Type::StructTyID)
+ arrtype = 0;
+ if ((isa<GlobalValue>(Operand)) && arrtype)
+ Out << "(&";
+ CW.writeOperand(Operand,false, Out);
+ for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) {
+ if (i == 1) {
+ if (arrtype || !isa<GlobalValue>(Operand)){
+ Out << "[";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ Out << "]";
+ }
+ if (isa<GlobalValue>(Operand) && arrtype)
+ Out << ")";
+ }
+ else {
+ if (arrtype == 1) Out << "[";
+ else
+ Out << ".field";
+ CW.writeOperand(I->getOperand(i), false, Out);
+ if (arrtype == 1) Out << "]";
+ }
+ }
+ }
+ Out << ");\n";
+}
+
+void CInstPrintVisitor::visitPHINode(PHINode *I) {
+
+}
+
+void CInstPrintVisitor::visitUnaryOperator (UnaryOperator *I) {
+ if (I->getOpcode() == Instruction::Not) {
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ Out << "!(";
+ CW.writeOperand(Operand,false, Out);
+ Out << ");\n";
+ }
+ else {
+ Out << "<bad unary inst>\n";
+ }
+}
+
+void CInstPrintVisitor::visitBinaryOperator(BinaryOperator *I) {
+ //binary instructions, shift instructions, setCond instructions.
+ outputLValue(I);
+ Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ if (I->getType()->getPrimitiveID() == Type::PointerTyID) {
+ Out << "(";
+ CW.printType(I->getType(), Out);
+ Out << ")";
+ }
+ Out << "(";
+ if (Operand->getType()->getPrimitiveID() == Type::PointerTyID)
+ Out << "(long long)";
+ CW.writeOperand(Operand,false, Out);
+ Out << getOpcodeOperName(I);
+ // Need the extra parenthisis if the second operand is < 0
+ Out << '(';
+ if (I->getOperand(1)->getType()->getPrimitiveID() == Type::PointerTyID)
+ Out << "(long long)";
+ CW.writeOperand(I->getOperand(1),false, Out);
+ Out << ')';
+ Out << ");\n";
+}
+
+/* END : CInstPrintVisitor implementation */
+
+void CWriter::printModule(const Module *M) {
+ // printing stdlib inclusion
+ // Out << "#include <stdlib.h>\n";
+
+ // Loop over the symbol table, emitting all named constants...
+ if (M->hasSymbolTable())
+ printSymbolTable(*M->getSymbolTable());
+
+ for_each(M->gbegin(), M->gend(),
+ bind_obj(this, &CWriter::printGlobal));
+
+ // First output all the declarations of the methods as C requires Functions
+ // be declared before they are used.
+ for_each(M->begin(), M->end(), bind_obj(this,&CWriter::printFunctionDecl));
+
+ // declaration of alloca
+ Out << "void *alloca(unsigned long size);\n";
+
+ // Output all of the methods...
+ for_each(M->begin(), M->end(), bind_obj(this,&CWriter::printFunction));
+}
+
+// prints the global constants
+void CWriter::printGlobal(const GlobalVariable *GV) {
+ string tempostr;
+ if (GV->hasName())
+ tempostr = "llvm__" + makeNameProper(GV->getName()) + "_" +
+ itostr((int)GV->getType()->getUniqueID());
+ if (GV->hasInternalLinkage()) Out << "static ";
+
+ printTypeVar(GV->getType()->getElementType(), tempostr, Out);
+
+ if (GV->hasInitializer()) {
+ Out << " = " ;
+ writeOperand(GV->getInitializer(), false, Out, false);
+ }
+
+ Out << ";\n";
+}
+
+// printSymbolTable - Run through symbol table looking for named constants
+// if a named constant is found, emit it's declaration...
+// Assuming that symbol table has only types and constants.
+void CWriter::printSymbolTable(const SymbolTable &ST) {
+ // GraphT G;
+ for (SymbolTable::const_iterator TI = ST.begin(); TI != ST.end(); ++TI) {
+ SymbolTable::type_const_iterator I = ST.type_begin(TI->first);
+ SymbolTable::type_const_iterator End = ST.type_end(TI->first);
+
+ // TODO
+ // Need to run through all the used types in the program
+ // FindUsedTypes &FUT = new FindUsedTypes();
+ // const std::set<const Type *> &UsedTypes = FUT.getTypes();
+ // Filter out the structures printing forward definitions for each of them
+ // and creating the dependency graph.
+ // Print forward definitions to all of them
+ // print the typedefs topologically sorted
+
+ // But for now we have
+ for (; I != End; ++I) {
+ const Value *V = I->second;
+ if (const Constant *CPV = dyn_cast<const Constant>(V)) {
+ printConstant(CPV);
+ } else if (const Type *Ty = dyn_cast<const Type>(V)) {
+ string tempostr;
+ string tempstr = "";
+ Out << "typedef ";
+ vector<const Type *> TypeStack;
+ tempostr = "llvm__" + I->first;
+ string TypeNameVar = calcTypeNameVar(Ty, TypeStack, TypeNames,
+ tempostr, tempstr);
+ Out << TypeNameVar << ";\n";
+ if (!isa<PointerType>(Ty) ||
+ !cast<PointerType>(Ty)->getElementType()->isPrimitiveType())
+ TypeNames.insert(std::make_pair(Ty, "llvm__"+I->first));
+ }
+ }
+ }
+}
+
+
+// printConstant - Print out a constant pool entry...
+//
+void CWriter::printConstant(const Constant *CPV) {
+ // TODO
+ // Dinakar : Don't know what to do with unnamed constants
+ // should do something about it later.
+
+ string tempostr;
+ if (CPV->hasName()) {
+ // Print out name...
+ tempostr = "llvm__" + makeNameProper(CPV->getName()) + "_" +
+ itostr((int)CPV->getType()->getUniqueID());
+ } else {
+ int Slot = Table.getValSlot(CPV); // slot number
+ if (Slot >= 0)
+ tempostr = "llvm__tmp_" + itostr(Slot) + "_" +
+ itostr((int)CPV->getType()->getUniqueID());
+ else
+ tempostr = "<badref>";
+ }
+
+ // Print out the constant type...
+ printTypeVar(CPV->getType(), tempostr, Out);
+
+ Out << " = ";
+ // Write the value out now...
+ writeOperand(CPV, false, Out, false);
+
+ Out << "\n";
+}
+
+
+
+// printFunctionDecl - Print method declaration
+//
+void CWriter::printFunctionDecl(const Function *M) {
+
+ if (M->hasInternalLinkage()) Out <<"static ";
+
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+
+ if (!M->isExternal()) {
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out);
+ Out << " " << makeNameProper(M->getName()) << "(";
+
+ for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
+ bind_obj(this, &CWriter::printFunctionArgument));
+ } else {
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out) ;
+ Out << " " << makeNameProper(M->getName()) << "(";
+
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+ for (FunctionType::ParamTypes::const_iterator I =
+ MT->getParamTypes().begin(),
+ E = MT->getParamTypes().end(); I != E; ++I) {
+ if (I != MT->getParamTypes().begin()) Out << ", ";
+ printType(*I, Out);
+ }
+ }
+
+ // Finish printing arguments...
+ if (MT->isVarArg()) {
+ if (MT->getParamTypes().size()) Out << ", ";
+ Out << "..."; // Output varargs portion of signature!
+ }
+ Out << ");\n";
+}
+
+void CWriter::printFunction(const Function *M) {
+ if (!M->isExternal()) {
+ // Process each of the basic blocks, gather information and call the
+ // output methods on the CLocalVars and Function* objects.
+
+ // gather local variable information for each basic block
+ InstLocalVarsVisitor ILV(Table);
+ ILV.visit((Function *)M);
+
+ // Spout out code.
+ outputFunction(M, ILV.CLV);
+
+ }
+}
+
+// printFunctionArgument - This member is called for every argument that
+// is passed into the method. Simply print it out
+//
+void CWriter::printFunctionArgument(const Argument *Arg) {
+ // Insert commas as we go... the first arg doesn't get a comma
+ string tempostr;
+ if (Arg != Arg->getParent()->getArgumentList().front()) Out << ", ";
+
+ // Output name, if available...
+ if (Arg->hasName()) {
+ tempostr = "llvm__" + makeNameProper(Arg->getName()) + "_" +
+ itostr((int)Arg->getType()->getUniqueID());
+ } else if (Table.getValSlot(Arg) < 0) {
+ tempostr = "<badref>";
+ }
+ else {
+ tempostr = "llvm__tmp_" + itostr(Table.getValSlot(Arg)) + "_" +
+ itostr((int)Arg->getType()->getUniqueID());
+ }
+ // Output type...
+ // printType(Arg->getType(), Out);
+ // Out << " " << tempostr;
+ printTypeVar (Arg->getType(), tempostr, Out);
+}
+
+void CWriter::outputFunction(const Function *M, CLocalVars& CLV) {
+ // Currently we have a no-loop-structure implementation
+ // Seems like its not really necessary.
+
+ // Print out the return type and name...
+ printType(M->getReturnType(), Out) ;
+ Out << " " << makeNameProper(M->getName()) << "(";
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+
+ if (!M->isExternal()) {
+ for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
+ bind_obj(this, &CWriter::printFunctionArgument));
+ } else {
+ // Loop over the arguments, printing them...
+ const FunctionType *MT = cast<const FunctionType>(M->getFunctionType());
+ for (FunctionType::ParamTypes::const_iterator I =
+ MT->getParamTypes().begin(),
+ E = MT->getParamTypes().end(); I != E; ++I) {
+ if (I != MT->getParamTypes().begin()) Out << ", ";
+ printType(*I, Out);
+ }
+ }
+
+ // Finish printing arguments...
+ if (MT->isVarArg()) {
+ if (MT->getParamTypes().size()) Out << ", ";
+ Out << "..."; // Output varargs portion of signature!
+ }
+ Out << ")\n";
+
+ if (!M->isExternal()) {
+ Out << "{\n";
+ // Loop over the symbol table, emitting all named constants...
+ if (M->hasSymbolTable())
+ printSymbolTable(*M->getSymbolTable());
+
+ // print the local variables
+ // we assume that every local variable is alloca'ed in the C code.
+ std::map<const Type*, VarListType> locals;
+ locals = CLV.LocalVars;
+
+ map<const Type*, VarListType>::iterator iter;
+ for (iter = locals.begin(); iter != locals.end(); iter++) {
+ VarListType::iterator listiter;
+ for (listiter = iter->second.begin(); listiter != iter->second.end();
+ listiter++) {
+ // printType(iter->first, Out);
+ // Out << " " << *listiter << ";\n";
+ printTypeVar(iter->first, *listiter, Out);
+ Out << ";\n";
+ }
+ }
+
+ // print the basic blocks
+ Function::const_iterator iterBB;
+ for (iterBB = M->begin(); iterBB != M->end(); ++iterBB)
+ outputBasicBlock(*iterBB);
+
+ Out << "}\n";
+ }
+}
+
+void CWriter::outputBasicBlock(const BasicBlock* BB) {
+
+ if (BB->hasName()) { // Print out the label if it exists...
+ Out << "llvm__" << makeNameProper(BB->getName()) << "_"
+ << BB->getType()->getUniqueID() << ":\n";
+ } else {
+ int Slot = Table.getValSlot(BB);
+ Out << "llvm__tmp_";
+ if (Slot >= 0)
+ Out << Slot << "_" << BB->getType()->getUniqueID() << ":\n";
+ // Extra newline seperates out label's
+ else
+ Out << "<badref>\n";
+ }
+
+ // Output all of the instructions in the basic block...
+ // print the basic blocks
+ CInstPrintVisitor CIPV(*this, Table, Out);
+ CIPV.visit((BasicBlock *) BB);
+}
+
+// printTypeVar - Go to extreme measures to attempt to print out a short,
+// symbolic version of a type name.
+//
+ostream& CWriter::printTypeVar(const Type *Ty, string VariableName,
+ ostream &Out) {
+ return printTypeVarInt(Out, Ty, TypeNames, VariableName);
+}
+
+// printType - Go to extreme measures to attempt to print out a short, symbolic
+// version of a type name.
+ostream& CWriter::printType(const Type *Ty, ostream &Out) {
+ return printTypeInt(Out, Ty, TypeNames);
+}
+
+
+void CWriter::writeOperand(const Value *Operand, bool PrintType,
+ ostream &Out, bool PrintName = true) {
+ if (PrintType){
+ string tempstr = "";
+ Out << " ";
+ printType(Operand->getType(), Out);
+ }
+ vector<const Type *> TypeStack;
+ string MInfo = "";
+ string OperandType = calcTypeName(Operand->getType(), TypeStack, TypeNames,
+ &MInfo);
+ if (MInfo != "")
+ OperandType += ")" + MInfo;
+ WriteCOperandInternal(Out, Operand, PrintName, &Table, OperandType);
+}
+
+
+//===----------------------------------------------------------------------===//
+// External Interface declaration
+//===----------------------------------------------------------------------===//
+
+
+void WriteToC(const Module *C, ostream &Out) {
+ assert(C && "You can't write a null module!!");
+ SlotCalculator SlotTable(C, true);
+ CWriter W(Out, SlotTable, C);
+ W.write(C);
+ Out.flush();
+}
+
LEVEL = ../..
TOOLNAME = dis
-USEDLIBS = bcreader vmcore support
+USEDLIBS = bcreader vmcore support cwriter
include $(LEVEL)/Makefile.common
// -rdfo - Print basic blocks in reverse depth first order
// -po - Print basic blocks in post order
// -rpo - Print basic blocks in reverse post order
+//
+// -c - Print C code
//
// TODO: add -vcg which prints VCG compatible output.
//
#include "Support/PostOrderIterator.h"
#include "Support/CommandLine.h"
#include "Support/Signals.h"
+#include "llvm/Assembly/CWriter.h"
#include <fstream>
#include <iostream>
using std::cerr;
rdfo, // Reverse Depth First ordering
po, // Post Order
rpo, // Reverse Post Order
+
+ c, // Generate C code
};
cl::String InputFilename ("", "Load <arg> file, print as assembly", 0, "-");
clEnumVal(rdfo , "Write basic blocks in reverse DFO"),
clEnumVal(po , "Write basic blocks in postorder"),
clEnumVal(rpo , "Write basic blocks in reverse postorder"),
+
+ clEnumVal(c , "Write corresponding C code"),
0);
int main(int argc, char **argv) {
} else {
OutputFilename = IFN; // Append a .ll to it
}
- OutputFilename += ".ll";
+ if (WriteMode == c)
+ OutputFilename += ".c";
+ else
+ OutputFilename += ".ll";
if (!Force && std::ifstream(OutputFilename.c_str())) {
// If force is not specified, make sure not to overwrite a file!
Out = &std::cout;
}
- // All that dis does is write the assembly out to a file... which is exactly
- // what the writer library is supposed to do...
- //
+ // All that dis does is write the assembly or C out to a file... which is
+ // exactly what the writer or cwriter library is supposed to do...
if (WriteMode == Default) {
(*Out) << M; // Print out in list order
+ } else if (WriteMode == c) {
+ WriteToC(M, *Out);
} else {
// TODO: This does not print anything other than the basic blocks in the
// functions... more should definately be printed. It should be valid
if (Out != &std::cout) delete Out;
return 0;
}
+
LEVEL = ../..
TOOLNAME = dis
-USEDLIBS = bcreader vmcore support
+USEDLIBS = bcreader vmcore support cwriter
include $(LEVEL)/Makefile.common
// -rdfo - Print basic blocks in reverse depth first order
// -po - Print basic blocks in post order
// -rpo - Print basic blocks in reverse post order
+//
+// -c - Print C code
//
// TODO: add -vcg which prints VCG compatible output.
//
#include "Support/PostOrderIterator.h"
#include "Support/CommandLine.h"
#include "Support/Signals.h"
+#include "llvm/Assembly/CWriter.h"
#include <fstream>
#include <iostream>
using std::cerr;
rdfo, // Reverse Depth First ordering
po, // Post Order
rpo, // Reverse Post Order
+
+ c, // Generate C code
};
cl::String InputFilename ("", "Load <arg> file, print as assembly", 0, "-");
clEnumVal(rdfo , "Write basic blocks in reverse DFO"),
clEnumVal(po , "Write basic blocks in postorder"),
clEnumVal(rpo , "Write basic blocks in reverse postorder"),
+
+ clEnumVal(c , "Write corresponding C code"),
0);
int main(int argc, char **argv) {
} else {
OutputFilename = IFN; // Append a .ll to it
}
- OutputFilename += ".ll";
+ if (WriteMode == c)
+ OutputFilename += ".c";
+ else
+ OutputFilename += ".ll";
if (!Force && std::ifstream(OutputFilename.c_str())) {
// If force is not specified, make sure not to overwrite a file!
Out = &std::cout;
}
- // All that dis does is write the assembly out to a file... which is exactly
- // what the writer library is supposed to do...
- //
+ // All that dis does is write the assembly or C out to a file... which is
+ // exactly what the writer or cwriter library is supposed to do...
if (WriteMode == Default) {
(*Out) << M; // Print out in list order
+ } else if (WriteMode == c) {
+ WriteToC(M, *Out);
} else {
// TODO: This does not print anything other than the basic blocks in the
// functions... more should definately be printed. It should be valid
if (Out != &std::cout) delete Out;
return 0;
}
+
// -rdfo - Print basic blocks in reverse depth first order
// -po - Print basic blocks in post order
// -rpo - Print basic blocks in reverse post order
+//
+// -c - Print C code
//
// TODO: add -vcg which prints VCG compatible output.
//
#include "Support/PostOrderIterator.h"
#include "Support/CommandLine.h"
#include "Support/Signals.h"
+#include "llvm/Assembly/CWriter.h"
#include <fstream>
#include <iostream>
using std::cerr;
rdfo, // Reverse Depth First ordering
po, // Post Order
rpo, // Reverse Post Order
+
+ c, // Generate C code
};
cl::String InputFilename ("", "Load <arg> file, print as assembly", 0, "-");
clEnumVal(rdfo , "Write basic blocks in reverse DFO"),
clEnumVal(po , "Write basic blocks in postorder"),
clEnumVal(rpo , "Write basic blocks in reverse postorder"),
+
+ clEnumVal(c , "Write corresponding C code"),
0);
int main(int argc, char **argv) {
} else {
OutputFilename = IFN; // Append a .ll to it
}
- OutputFilename += ".ll";
+ if (WriteMode == c)
+ OutputFilename += ".c";
+ else
+ OutputFilename += ".ll";
if (!Force && std::ifstream(OutputFilename.c_str())) {
// If force is not specified, make sure not to overwrite a file!
Out = &std::cout;
}
- // All that dis does is write the assembly out to a file... which is exactly
- // what the writer library is supposed to do...
- //
+ // All that dis does is write the assembly or C out to a file... which is
+ // exactly what the writer or cwriter library is supposed to do...
if (WriteMode == Default) {
(*Out) << M; // Print out in list order
+ } else if (WriteMode == c) {
+ WriteToC(M, *Out);
} else {
// TODO: This does not print anything other than the basic blocks in the
// functions... more should definately be printed. It should be valid
if (Out != &std::cout) delete Out;
return 0;
}
+
projects / oota-llvm.git / commitdiff