-//===-- Writer.cpp - Library for Printing VM assembly files ------*- C++ -*--=//
+//===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
//
// This library implements the functionality defined in llvm/Assembly/Writer.h
//
-// This library uses the Analysis library to figure out offsets for
-// variables in the method tables...
-//
-// TODO: print out the type name instead of the full type if a particular type
-// is in the symbol table...
+// Note that these routines must be extremely tolerant of various errors in the
+// LLVM code, because of of the primary uses of it is for debugging
+// transformations.
//
//===----------------------------------------------------------------------===//
#include "llvm/Assembly/CachedWriter.h"
-#include "llvm/Analysis/SlotCalculator.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/Assembly/PrintModulePass.h"
+#include "llvm/SlotCalculator.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Instruction.h"
#include "llvm/Module.h"
-#include "llvm/Method.h"
-#include "llvm/GlobalVariable.h"
-#include "llvm/BasicBlock.h"
-#include "llvm/ConstantVals.h"
+#include "llvm/Constants.h"
#include "llvm/iMemory.h"
#include "llvm/iTerminators.h"
#include "llvm/iPHINode.h"
#include "llvm/iOther.h"
#include "llvm/SymbolTable.h"
+#include "llvm/Support/CFG.h"
#include "Support/StringExtras.h"
#include "Support/STLExtras.h"
#include <algorithm>
-#include <map>
+using std::string;
+using std::map;
+using std::vector;
+using std::ostream;
+
+static RegisterPass<PrintModulePass>
+X("printm", "Print module to stderr",PassInfo::Analysis|PassInfo::Optimization);
+static RegisterPass<PrintFunctionPass>
+Y("print","Print function to stderr",PassInfo::Analysis|PassInfo::Optimization);
+
+static void WriteAsOperandInternal(ostream &Out, const Value *V, bool PrintName,
+ map<const Type *, string> &TypeTable,
+ SlotCalculator *Table);
static const Module *getModuleFromVal(const Value *V) {
- if (const MethodArgument *MA =dyn_cast<const MethodArgument>(V))
+ if (const Argument *MA = dyn_cast<const Argument>(V))
return MA->getParent() ? MA->getParent()->getParent() : 0;
else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V))
return BB->getParent() ? BB->getParent()->getParent() : 0;
else if (const Instruction *I = dyn_cast<const Instruction>(V)) {
- const Method *M = I->getParent() ? I->getParent()->getParent() : 0;
+ const Function *M = I->getParent() ? I->getParent()->getParent() : 0;
return M ? M->getParent() : 0;
- } else if (const GlobalValue *GV =dyn_cast<const GlobalValue>(V))
+ } else if (const GlobalValue *GV = dyn_cast<const GlobalValue>(V))
return GV->getParent();
- else if (const Module *Mod = dyn_cast<const Module>(V))
- return Mod;
return 0;
}
static SlotCalculator *createSlotCalculator(const Value *V) {
assert(!isa<Type>(V) && "Can't create an SC for a type!");
- if (const MethodArgument *MA =dyn_cast<const MethodArgument>(V)){
- return new SlotCalculator(MA->getParent(), true);
+ if (const Argument *FA = dyn_cast<const Argument>(V)) {
+ return new SlotCalculator(FA->getParent(), true);
} else if (const Instruction *I = dyn_cast<const Instruction>(V)) {
return new SlotCalculator(I->getParent()->getParent(), true);
} else if (const BasicBlock *BB = dyn_cast<const BasicBlock>(V)) {
return new SlotCalculator(BB->getParent(), true);
- } else if (const GlobalVariable *GV =dyn_cast<const GlobalVariable>(V)){
+ } else if (const GlobalVariable *GV = dyn_cast<const GlobalVariable>(V)){
return new SlotCalculator(GV->getParent(), true);
- } else if (const Method *Meth = dyn_cast<const Method>(V)) {
- return new SlotCalculator(Meth, true);
- } else if (const Module *Mod = dyn_cast<const Module>(V)) {
- return new SlotCalculator(Mod, true);
+ } else if (const Function *Func = dyn_cast<const Function>(V)) {
+ return new SlotCalculator(Func, true);
}
return 0;
}
-// WriteAsOperand - Write the name of the specified value out to the specified
-// ostream. This can be useful when you just want to print int %reg126, not the
-// whole instruction that generated it.
-//
-static void WriteAsOperandInternal(ostream &Out, const Value *V, bool PrintName,
- SlotCalculator *Table) {
- if (PrintName && V->hasName()) {
- Out << " %" << V->getName();
- } else {
- if (const Constant *CPV = dyn_cast<const Constant>(V)) {
- Out << " " << CPV->getStrValue();
- } else {
- int Slot;
- if (Table) {
- Slot = Table->getValSlot(V);
- } else {
- if (const Type *Ty = dyn_cast<const Type>(V)) {
- Out << " " << Ty->getDescription();
- return;
- }
-
- Table = createSlotCalculator(V);
- if (Table == 0) { Out << "BAD VALUE TYPE!"; return; }
-
- Slot = Table->getValSlot(V);
- delete Table;
- }
- if (Slot >= 0) Out << " %" << Slot;
- else if (PrintName)
- Out << "<badref>"; // Not embeded into a location?
- }
- }
-}
-
// If the module has a symbol table, take all global types and stuff their
// names into the TypeNames map.
//
static void fillTypeNameTable(const Module *M,
map<const Type *, string> &TypeNames) {
- if (M && M->hasSymbolTable()) {
- const SymbolTable *ST = M->getSymbolTable();
- SymbolTable::const_iterator PI = ST->find(Type::TypeTy);
- if (PI != ST->end()) {
- SymbolTable::type_const_iterator I = PI->second.begin();
- for (; I != PI->second.end(); ++I) {
- // As a heuristic, don't insert pointer to primitive types, because
- // they are used too often to have a single useful name.
- //
- const Type *Ty = cast<const Type>(I->second);
- if (!isa<PointerType>(Ty) ||
- !cast<PointerType>(Ty)->getElementType()->isPrimitiveType())
- TypeNames.insert(make_pair(Ty, "%"+I->first));
- }
+ if (!M) return;
+ const SymbolTable &ST = M->getSymbolTable();
+ SymbolTable::const_iterator PI = ST.find(Type::TypeTy);
+ if (PI != ST.end()) {
+ SymbolTable::type_const_iterator I = PI->second.begin();
+ for (; I != PI->second.end(); ++I) {
+ // As a heuristic, don't insert pointer to primitive types, because
+ // they are used too often to have a single useful name.
+ //
+ const Type *Ty = cast<const Type>(I->second);
+ if (!isa<PointerType>(Ty) ||
+ !cast<PointerType>(Ty)->getElementType()->isPrimitiveType())
+ TypeNames.insert(std::make_pair(Ty, "%"+I->first));
}
}
}
string Result;
switch (Ty->getPrimitiveID()) {
- case Type::MethodTyID: {
- const MethodType *MTy = cast<const MethodType>(Ty);
- Result = calcTypeName(MTy->getReturnType(), TypeStack, TypeNames) + " (";
- for (MethodType::ParamTypes::const_iterator
- I = MTy->getParamTypes().begin(),
- E = MTy->getParamTypes().end(); I != E; ++I) {
- if (I != MTy->getParamTypes().begin())
+ case Type::FunctionTyID: {
+ const FunctionType *FTy = cast<const FunctionType>(Ty);
+ Result = calcTypeName(FTy->getReturnType(), TypeStack, TypeNames) + " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = FTy->getParamTypes().begin(),
+ E = FTy->getParamTypes().end(); I != E; ++I) {
+ if (I != FTy->getParamTypes().begin())
Result += ", ";
Result += calcTypeName(*I, TypeStack, TypeNames);
}
- if (MTy->isVarArg()) {
- if (!MTy->getParamTypes().empty()) Result += ", ";
+ if (FTy->isVarArg()) {
+ if (!FTy->getParamTypes().empty()) Result += ", ";
Result += "...";
}
Result += ")";
}
case Type::PointerTyID:
Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(),
- TypeStack, TypeNames) + " *";
+ TypeStack, TypeNames) + "*";
break;
case Type::ArrayTyID: {
const ArrayType *ATy = cast<const ArrayType>(Ty);
- int NumElements = ATy->getNumElements();
- Result = "[";
- if (NumElements != -1) Result += itostr(NumElements) + " x ";
+ Result = "[" + utostr(ATy->getNumElements()) + " x ";
Result += calcTypeName(ATy->getElementType(), TypeStack, TypeNames) + "]";
break;
}
default:
- assert(0 && "Unhandled case in getTypeProps!");
- Result = "<error>";
+ Result = "<unrecognized-type>";
}
TypeStack.pop_back(); // Remove self from stack...
//
vector<const Type *> TypeStack;
string TypeName = calcTypeName(Ty, TypeStack, TypeNames);
- TypeNames.insert(make_pair(Ty, TypeName)); // Cache type name for later use
+ TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
return Out << TypeName;
}
// If they want us to print out a type, attempt to make it symbolic if there
// is a symbol table in the module...
- if (M && M->hasSymbolTable()) {
+ if (M) {
map<const Type *, string> TypeNames;
fillTypeNameTable(M, TypeNames);
}
}
+static void WriteConstantInt(ostream &Out, const Constant *CV, bool PrintName,
+ map<const Type *, string> &TypeTable,
+ SlotCalculator *Table) {
+ if (const ConstantBool *CB = dyn_cast<ConstantBool>(CV)) {
+ Out << (CB == ConstantBool::True ? "true" : "false");
+ } else if (const ConstantSInt *CI = dyn_cast<ConstantSInt>(CV)) {
+ Out << CI->getValue();
+ } else if (const ConstantUInt *CI = dyn_cast<ConstantUInt>(CV)) {
+ Out << CI->getValue();
+ } else if (const ConstantFP *CFP = dyn_cast<ConstantFP>(CV)) {
+ // We would like to output the FP constant value in exponential notation,
+ // but we cannot do this if doing so will lose precision. Check here to
+ // make sure that we only output it in exponential format if we can parse
+ // the value back and get the same value.
+ //
+ std::string StrVal = ftostr(CFP->getValue());
+
+ // Check to make sure that the stringized number is not some string like
+ // "Inf" or NaN, that atof will accept, but the lexer will not. Check that
+ // the string matches the "[-+]?[0-9]" regex.
+ //
+ if ((StrVal[0] >= '0' && StrVal[0] <= '9') ||
+ ((StrVal[0] == '-' || StrVal[0] == '+') &&
+ (StrVal[0] >= '0' && StrVal[0] <= '9')))
+ // Reparse stringized version!
+ if (atof(StrVal.c_str()) == CFP->getValue()) {
+ Out << StrVal; return;
+ }
+
+ // Otherwise we could not reparse it to exactly the same value, so we must
+ // output the string in hexadecimal format!
+ //
+ // Behave nicely in the face of C TBAA rules... see:
+ // http://www.nullstone.com/htmls/category/aliastyp.htm
+ //
+ double Val = CFP->getValue();
+ char *Ptr = (char*)&Val;
+ assert(sizeof(double) == sizeof(uint64_t) && sizeof(double) == 8 &&
+ "assuming that double is 64 bits!");
+ Out << "0x" << utohexstr(*(uint64_t*)Ptr);
+
+ } else if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
+ // 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 = CA->getType()->getElementType();
+ bool isString = (ETy == Type::SByteTy || ETy == Type::UByteTy);
+
+ if (ETy == Type::SByteTy)
+ for (unsigned i = 0; i < CA->getNumOperands(); ++i)
+ if (cast<ConstantSInt>(CA->getOperand(i))->getValue() < 0) {
+ isString = false;
+ break;
+ }
+
+ if (isString) {
+ Out << "c\"";
+ for (unsigned i = 0; i < CA->getNumOperands(); ++i) {
+ unsigned char C = (ETy == Type::SByteTy) ?
+ (unsigned char)cast<ConstantSInt>(CA->getOperand(i))->getValue() :
+ (unsigned char)cast<ConstantUInt>(CA->getOperand(i))->getValue();
+
+ if (isprint(C) && C != '"' && C != '\\') {
+ Out << C;
+ } else {
+ Out << '\\'
+ << (char) ((C/16 < 10) ? ( C/16 +'0') : ( C/16 -10+'A'))
+ << (char)(((C&15) < 10) ? ((C&15)+'0') : ((C&15)-10+'A'));
+ }
+ }
+ Out << "\"";
+
+ } else { // Cannot output in string format...
+ Out << "[";
+ if (CA->getNumOperands()) {
+ Out << " ";
+ printTypeInt(Out, ETy, TypeTable);
+ WriteAsOperandInternal(Out, CA->getOperand(0),
+ PrintName, TypeTable, Table);
+ for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
+ Out << ", ";
+ printTypeInt(Out, ETy, TypeTable);
+ WriteAsOperandInternal(Out, CA->getOperand(i), PrintName,
+ TypeTable, Table);
+ }
+ }
+ Out << " ]";
+ }
+ } else if (const ConstantStruct *CS = dyn_cast<ConstantStruct>(CV)) {
+ Out << "{";
+ if (CS->getNumOperands()) {
+ Out << " ";
+ printTypeInt(Out, CS->getOperand(0)->getType(), TypeTable);
+
+ WriteAsOperandInternal(Out, CS->getOperand(0),
+ PrintName, TypeTable, Table);
+
+ for (unsigned i = 1; i < CS->getNumOperands(); i++) {
+ Out << ", ";
+ printTypeInt(Out, CS->getOperand(i)->getType(), TypeTable);
+
+ WriteAsOperandInternal(Out, CS->getOperand(i),
+ PrintName, TypeTable, Table);
+ }
+ }
+
+ Out << " }";
+ } else if (isa<ConstantPointerNull>(CV)) {
+ Out << "null";
+
+ } else if (const ConstantPointerRef *PR = dyn_cast<ConstantPointerRef>(CV)) {
+ const GlobalValue *V = PR->getValue();
+ if (V->hasName()) {
+ Out << "%" << V->getName();
+ } else if (Table) {
+ int Slot = Table->getValSlot(V);
+ if (Slot >= 0)
+ Out << "%" << Slot;
+ else
+ Out << "<pointer reference badref>";
+ } else {
+ Out << "<pointer reference without context info>";
+ }
+
+ } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(CV)) {
+ Out << CE->getOpcodeName();
+
+ bool isGEP = CE->getOpcode() == Instruction::GetElementPtr;
+ Out << " (";
+
+ for (User::const_op_iterator OI=CE->op_begin(); OI != CE->op_end(); ++OI) {
+ printTypeInt(Out, (*OI)->getType(), TypeTable);
+ WriteAsOperandInternal(Out, *OI, PrintName, TypeTable, Table);
+ if (OI+1 != CE->op_end())
+ Out << ", ";
+ }
+
+ if (CE->getOpcode() == Instruction::Cast) {
+ Out << " to ";
+ printTypeInt(Out, CE->getType(), TypeTable);
+ }
+ Out << ")";
+
+ } else {
+ Out << "<placeholder or erroneous Constant>";
+ }
+}
+
+
+// WriteAsOperand - Write the name of the specified value out to the specified
+// ostream. This can be useful when you just want to print int %reg126, not the
+// whole instruction that generated it.
+//
+static void WriteAsOperandInternal(ostream &Out, const Value *V, bool PrintName,
+ map<const Type *, string> &TypeTable,
+ SlotCalculator *Table) {
+ Out << " ";
+ if (PrintName && V->hasName()) {
+ Out << "%" << V->getName();
+ } else {
+ if (const Constant *CV = dyn_cast<const Constant>(V)) {
+ WriteConstantInt(Out, CV, PrintName, TypeTable, Table);
+ } else {
+ int Slot;
+ if (Table) {
+ Slot = Table->getValSlot(V);
+ } else {
+ if (const Type *Ty = dyn_cast<const Type>(V)) {
+ Out << Ty->getDescription();
+ return;
+ }
+
+ Table = createSlotCalculator(V);
+ if (Table == 0) { Out << "BAD VALUE TYPE!"; return; }
+
+ Slot = Table->getValSlot(V);
+ delete Table;
+ }
+ if (Slot >= 0) Out << "%" << Slot;
+ else if (PrintName)
+ Out << "<badref>"; // Not embeded into a location?
+ }
+ }
+}
+
+
// WriteAsOperand - Write the name of the specified value out to the specified
// ostream. This can be useful when you just want to print int %reg126, not the
// whole instruction that generated it.
//
ostream &WriteAsOperand(ostream &Out, const Value *V, bool PrintType,
- bool PrintName, SlotCalculator *Table) {
- if (PrintType)
- WriteTypeSymbolic(Out, V->getType(), getModuleFromVal(V));
+ bool PrintName, const Module *Context) {
+ map<const Type *, string> TypeNames;
+ if (Context == 0) Context = getModuleFromVal(V);
- WriteAsOperandInternal(Out, V, PrintName, Table);
+ if (Context)
+ fillTypeNameTable(Context, TypeNames);
+
+ if (PrintType)
+ printTypeInt(Out, V->getType(), TypeNames);
+
+ WriteAsOperandInternal(Out, V, PrintName, TypeNames, 0);
return Out;
}
inline void write(const Module *M) { printModule(M); }
inline void write(const GlobalVariable *G) { printGlobal(G); }
- inline void write(const Method *M) { printMethod(M); }
+ inline void write(const Function *F) { printFunction(F); }
inline void write(const BasicBlock *BB) { printBasicBlock(BB); }
- inline void write(const Instruction *I) { printInstruction(I); }
+ inline void write(const Instruction *I) { printInstruction(*I); }
inline void write(const Constant *CPV) { printConstant(CPV); }
inline void write(const Type *Ty) { printType(Ty); }
+ void writeOperand(const Value *Op, bool PrintType, 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 printMethod(const Method *M);
- void printMethodArgument(const MethodArgument *MA);
+ void printFunction(const Function *F);
+ void printArgument(const Argument *FA);
void printBasicBlock(const BasicBlock *BB);
- void printInstruction(const Instruction *I);
- ostream &printType(const Type *Ty);
+ void printInstruction(const Instruction &I);
- void writeOperand(const Value *Op, bool PrintType, bool PrintName = true);
+ // printType - Go to extreme measures to attempt to print out a short,
+ // symbolic version of a type name.
+ //
+ ostream &printType(const Type *Ty) {
+ return printTypeInt(Out, Ty, TypeNames);
+ }
+
+ // printTypeAtLeastOneLevel - Print out one level of the possibly complex type
+ // without considering any symbolic types that we may have equal to it.
+ //
+ ostream &printTypeAtLeastOneLevel(const Type *Ty);
// printInfoComment - Print a little comment after the instruction indicating
// which slot it occupies.
- void printInfoComment(const Value *V);
+ void printInfoComment(const Value &V);
};
+// printTypeAtLeastOneLevel - Print out one level of the possibly complex type
+// without considering any symbolic types that we may have equal to it.
+//
+ostream &AssemblyWriter::printTypeAtLeastOneLevel(const Type *Ty) {
+ if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
+ printType(FTy->getReturnType()) << " (";
+ for (FunctionType::ParamTypes::const_iterator
+ I = FTy->getParamTypes().begin(),
+ E = FTy->getParamTypes().end(); I != E; ++I) {
+ if (I != FTy->getParamTypes().begin())
+ Out << ", ";
+ printType(*I);
+ }
+ if (FTy->isVarArg()) {
+ if (!FTy->getParamTypes().empty()) Out << ", ";
+ Out << "...";
+ }
+ Out << ")";
+ } else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
+ Out << "{ ";
+ for (StructType::ElementTypes::const_iterator
+ I = STy->getElementTypes().begin(),
+ E = STy->getElementTypes().end(); I != E; ++I) {
+ if (I != STy->getElementTypes().begin())
+ Out << ", ";
+ printType(*I);
+ }
+ Out << " }";
+ } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
+ printType(PTy->getElementType()) << "*";
+ } else if (const ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
+ Out << "[" << ATy->getNumElements() << " x ";
+ printType(ATy->getElementType()) << "]";
+ } else if (const OpaqueType *OTy = dyn_cast<OpaqueType>(Ty)) {
+ Out << OTy->getDescription();
+ } else {
+ if (!Ty->isPrimitiveType())
+ Out << "<unknown derived type>";
+ printType(Ty);
+ }
+ return Out;
+}
+
+
void AssemblyWriter::writeOperand(const Value *Operand, bool PrintType,
bool PrintName) {
if (PrintType) { Out << " "; printType(Operand->getType()); }
- WriteAsOperandInternal(Out, Operand, PrintName, &Table);
+ WriteAsOperandInternal(Out, Operand, PrintName, TypeNames, &Table);
}
void AssemblyWriter::printModule(const Module *M) {
// Loop over the symbol table, emitting all named constants...
- if (M->hasSymbolTable())
- printSymbolTable(*M->getSymbolTable());
+ printSymbolTable(M->getSymbolTable());
- for_each(M->gbegin(), M->gend(),
- bind_obj(this, &AssemblyWriter::printGlobal));
+ for (Module::const_giterator I = M->gbegin(), E = M->gend(); I != E; ++I)
+ printGlobal(I);
- Out << "implementation\n";
+ Out << "\nimplementation ; Functions:\n";
- // Output all of the methods...
- for_each(M->begin(), M->end(), bind_obj(this,&AssemblyWriter::printMethod));
+ // Output all of the functions...
+ for (Module::const_iterator I = M->begin(), E = M->end(); I != E; ++I)
+ printFunction(I);
}
void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
if (GV->hasName()) Out << "%" << GV->getName() << " = ";
if (GV->hasInternalLinkage()) Out << "internal ";
- if (!GV->hasInitializer()) Out << "uninitialized ";
+ if (!GV->hasInitializer()) Out << "external ";
Out << (GV->isConstant() ? "constant " : "global ");
printType(GV->getType()->getElementType());
if (GV->hasInitializer())
writeOperand(GV->getInitializer(), false, false);
- printInfoComment(GV);
- Out << endl;
+ printInfoComment(*GV);
+ Out << "\n";
}
if (const Constant *CPV = dyn_cast<const Constant>(V)) {
printConstant(CPV);
} else if (const Type *Ty = dyn_cast<const Type>(V)) {
- Out << "\t%" << I->first << " = type " << Ty->getDescription() << endl;
+ Out << "\t%" << I->first << " = type ";
+
+ // Make sure we print out at least one level of the type structure, so
+ // that we do not get %FILE = type %FILE
+ //
+ printTypeAtLeastOneLevel(Ty) << "\n";
}
}
}
if (!CPV->hasName()) return;
// Print out name...
- Out << "\t%" << CPV->getName() << " = ";
-
- // Print out the constant type...
- printType(CPV->getType());
+ Out << "\t%" << CPV->getName() << " =";
// Write the value out now...
- writeOperand(CPV, false, false);
+ writeOperand(CPV, true, false);
- if (!CPV->hasName() && CPV->getType() != Type::VoidTy) {
- int Slot = Table.getValSlot(CPV); // Print out the def slot taken...
- Out << "\t\t; <";
- printType(CPV->getType()) << ">:";
- if (Slot >= 0) Out << Slot;
- else Out << "<badref>";
- }
-
- Out << endl;
+ printInfoComment(*CPV);
+ Out << "\n";
}
-// printMethod - Print all aspects of a method.
+// printFunction - Print all aspects of a function.
//
-void AssemblyWriter::printMethod(const Method *M) {
+void AssemblyWriter::printFunction(const Function *F) {
// Print out the return type and name...
- Out << "\n" << (M->isExternal() ? "declare " : "")
- << (M->hasInternalLinkage() ? "internal " : "");
- printType(M->getReturnType()) << " \"" << M->getName() << "\"(";
- Table.incorporateMethod(M);
+ Out << "\n" << (F->isExternal() ? "declare " : "")
+ << (F->hasInternalLinkage() ? "internal " : "");
+ printType(F->getReturnType()) << " %" << F->getName() << "(";
+ Table.incorporateFunction(F);
// Loop over the arguments, printing them...
- const MethodType *MT = cast<const MethodType>(M->getMethodType());
+ const FunctionType *FT = F->getFunctionType();
- if (!M->isExternal()) {
- for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
- bind_obj(this, &AssemblyWriter::printMethodArgument));
- } else {
- // Loop over the arguments, printing them...
- const MethodType *MT = cast<const MethodType>(M->getMethodType());
- for (MethodType::ParamTypes::const_iterator I = MT->getParamTypes().begin(),
- E = MT->getParamTypes().end(); I != E; ++I) {
- if (I != MT->getParamTypes().begin()) Out << ", ";
- printType(*I);
- }
- }
+ for(Function::const_aiterator I = F->abegin(), E = F->aend(); I != E; ++I)
+ printArgument(I);
// Finish printing arguments...
- if (MT->isVarArg()) {
- if (MT->getParamTypes().size()) Out << ", ";
+ if (FT->isVarArg()) {
+ if (FT->getParamTypes().size()) Out << ", ";
Out << "..."; // Output varargs portion of signature!
}
- Out << ")\n";
+ Out << ")";
- if (!M->isExternal()) {
- // Loop over the symbol table, emitting all named constants...
- if (M->hasSymbolTable())
- printSymbolTable(*M->getSymbolTable());
-
- Out << "begin";
+ if (F->isExternal()) {
+ Out << "\n";
+ } else {
+ Out << " {";
- // Output all of its basic blocks... for the method
- for_each(M->begin(), M->end(),
- bind_obj(this, &AssemblyWriter::printBasicBlock));
+ // Output all of its basic blocks... for the function
+ for (Function::const_iterator I = F->begin(), E = F->end(); I != E; ++I)
+ printBasicBlock(I);
- Out << "end\n";
+ Out << "}\n";
}
- Table.purgeMethod();
+ Table.purgeFunction();
}
-// printMethodArgument - This member is called for every argument that
-// is passed into the method. Simply print it out
+// printArgument - This member is called for every argument that
+// is passed into the function. Simply print it out
//
-void AssemblyWriter::printMethodArgument(const MethodArgument *Arg) {
+void AssemblyWriter::printArgument(const Argument *Arg) {
// Insert commas as we go... the first arg doesn't get a comma
- if (Arg != Arg->getParent()->getArgumentList().front()) Out << ", ";
+ if (Arg != &Arg->getParent()->afront()) Out << ", ";
// Output type...
printType(Arg->getType());
void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
if (BB->hasName()) { // Print out the label if it exists...
Out << "\n" << BB->getName() << ":";
- } else {
+ } else if (!BB->use_empty()) { // Don't print block # of no uses...
int Slot = Table.getValSlot(BB);
Out << "\n; <label>:";
if (Slot >= 0)
else
Out << "<badref>";
}
- Out << "\t\t\t\t\t;[#uses=" << BB->use_size() << "]\n"; // Output # uses
+
+ // Output predecessors for the block...
+ Out << "\t\t;";
+ pred_const_iterator PI = pred_begin(BB), PE = pred_end(BB);
+
+ if (PI == PE) {
+ Out << " No predecessors!";
+ } else {
+ Out << " preds =";
+ writeOperand(*PI, false, true);
+ for (++PI; PI != PE; ++PI) {
+ Out << ",";
+ writeOperand(*PI, false, true);
+ }
+ }
+
+ Out << "\n";
// Output all of the instructions in the basic block...
- for_each(BB->begin(), BB->end(),
- bind_obj(this, &AssemblyWriter::printInstruction));
+ for (BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
+ printInstruction(*I);
}
// printInfoComment - Print a little comment after the instruction indicating
// which slot it occupies.
//
-void AssemblyWriter::printInfoComment(const Value *V) {
- if (V->getType() != Type::VoidTy) {
+void AssemblyWriter::printInfoComment(const Value &V) {
+ if (V.getType() != Type::VoidTy) {
Out << "\t\t; <";
- printType(V->getType()) << ">";
+ printType(V.getType()) << ">";
- if (!V->hasName()) {
- int Slot = Table.getValSlot(V); // Print out the def slot taken...
+ if (!V.hasName()) {
+ int Slot = Table.getValSlot(&V); // Print out the def slot taken...
if (Slot >= 0) Out << ":" << Slot;
else Out << ":<badref>";
}
- Out << "\t[#uses=" << V->use_size() << "]"; // Output # uses
+ Out << " [#uses=" << V.use_size() << "]"; // Output # uses
}
}
// printInstruction - This member is called for each Instruction in a methd.
//
-void AssemblyWriter::printInstruction(const Instruction *I) {
+void AssemblyWriter::printInstruction(const Instruction &I) {
Out << "\t";
// Print out name if it exists...
- if (I && I->hasName())
- Out << "%" << I->getName() << " = ";
+ if (I.hasName())
+ Out << "%" << I.getName() << " = ";
// Print out the opcode...
- Out << I->getOpcodeName();
+ Out << I.getOpcodeName();
// Print out the type of the operands...
- const Value *Operand = I->getNumOperands() ? I->getOperand(0) : 0;
+ const Value *Operand = I.getNumOperands() ? I.getOperand(0) : 0;
// Special case conditional branches to swizzle the condition out to the front
- if (I->getOpcode() == Instruction::Br && I->getNumOperands() > 1) {
- writeOperand(I->getOperand(2), true);
+ if (isa<BranchInst>(I) && I.getNumOperands() > 1) {
+ writeOperand(I.getOperand(2), true);
Out << ",";
writeOperand(Operand, true);
Out << ",";
- writeOperand(I->getOperand(1), true);
+ writeOperand(I.getOperand(1), true);
- } else if (I->getOpcode() == Instruction::Switch) {
+ } else if (isa<SwitchInst>(I)) {
// Special case switch statement to get formatting nice and correct...
- writeOperand(Operand , true); Out << ",";
- writeOperand(I->getOperand(1), true); Out << " [";
+ writeOperand(Operand , true); Out << ",";
+ writeOperand(I.getOperand(1), true); Out << " [";
- for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; op += 2) {
+ for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; op += 2) {
Out << "\n\t\t";
- writeOperand(I->getOperand(op ), true); Out << ",";
- writeOperand(I->getOperand(op+1), true);
+ writeOperand(I.getOperand(op ), true); Out << ",";
+ writeOperand(I.getOperand(op+1), true);
}
Out << "\n\t]";
} else if (isa<PHINode>(I)) {
Out << " ";
- printType(I->getType());
+ printType(I.getType());
Out << " ";
- for (unsigned op = 0, Eop = I->getNumOperands(); op < Eop; op += 2) {
+ for (unsigned op = 0, Eop = I.getNumOperands(); op < Eop; op += 2) {
if (op) Out << ", ";
Out << "[";
- writeOperand(I->getOperand(op ), false); Out << ",";
- writeOperand(I->getOperand(op+1), false); Out << " ]";
+ writeOperand(I.getOperand(op ), false); Out << ",";
+ writeOperand(I.getOperand(op+1), false); Out << " ]";
}
} else if (isa<ReturnInst>(I) && !Operand) {
Out << " void";
} else if (isa<CallInst>(I)) {
const PointerType *PTy = dyn_cast<PointerType>(Operand->getType());
- const MethodType *MTy = PTy ?dyn_cast<MethodType>(PTy->getElementType()):0;
+ 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.
+ // only do this if the first argument is a pointer to a nonvararg function,
+ // and if the value returned is not a pointer to a function.
//
- if (RetTy && !MTy->isVarArg() &&
- (!isa<PointerType>(RetTy)||!isa<MethodType>(cast<PointerType>(RetTy)))){
+ if (RetTy && MTy && !MTy->isVarArg() &&
+ (!isa<PointerType>(RetTy) ||
+ !isa<FunctionType>(cast<PointerType>(RetTy)->getElementType()))) {
Out << " "; printType(RetTy);
writeOperand(Operand, false);
} else {
writeOperand(Operand, true);
}
Out << "(";
- if (I->getNumOperands() > 1) writeOperand(I->getOperand(1), true);
- for (unsigned op = 2, Eop = I->getNumOperands(); op < Eop; ++op) {
+ if (I.getNumOperands() > 1) writeOperand(I.getOperand(1), true);
+ for (unsigned op = 2, Eop = I.getNumOperands(); op < Eop; ++op) {
Out << ",";
- writeOperand(I->getOperand(op), true);
+ writeOperand(I.getOperand(op), true);
}
Out << " )";
- } else if (const InvokeInst *II = dyn_cast<InvokeInst>(I)) {
+ } else if (const InvokeInst *II = dyn_cast<InvokeInst>(&I)) {
// TODO: Should try to print out short form of the Invoke instruction
writeOperand(Operand, true);
Out << "(";
- if (I->getNumOperands() > 3) writeOperand(I->getOperand(3), true);
- for (unsigned op = 4, Eop = I->getNumOperands(); op < Eop; ++op) {
+ if (I.getNumOperands() > 3) writeOperand(I.getOperand(3), true);
+ for (unsigned op = 4, Eop = I.getNumOperands(); op < Eop; ++op) {
Out << ",";
- writeOperand(I->getOperand(op), true);
+ writeOperand(I.getOperand(op), true);
}
Out << " )\n\t\t\tto";
Out << " except";
writeOperand(II->getExceptionalDest(), true);
- } else if (I->getOpcode() == Instruction::Malloc ||
- I->getOpcode() == Instruction::Alloca) {
+ } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
Out << " ";
- printType(cast<const PointerType>(I->getType())->getElementType());
- if (I->getNumOperands()) {
+ printType(AI->getType()->getElementType());
+ if (AI->isArrayAllocation()) {
Out << ",";
- writeOperand(I->getOperand(0), true);
+ writeOperand(AI->getArraySize(), true);
}
} else if (isa<CastInst>(I)) {
- writeOperand(Operand, true);
+ if (Operand) writeOperand(Operand, true);
Out << " to ";
- printType(I->getType());
+ printType(I.getType());
} else if (Operand) { // Print the normal way...
// PrintAllTypes - Instructions who have operands of all the same type
bool PrintAllTypes = false;
const Type *TheType = Operand->getType();
- for (unsigned i = 1, E = I->getNumOperands(); i != E; ++i) {
- Operand = I->getOperand(i);
+ for (unsigned i = 1, E = I.getNumOperands(); i != E; ++i) {
+ Operand = I.getOperand(i);
if (Operand->getType() != TheType) {
PrintAllTypes = true; // We have differing types! Print them all!
break;
if (!PrintAllTypes) {
Out << " ";
- printType(I->getOperand(0)->getType());
+ printType(I.getOperand(0)->getType());
}
- for (unsigned i = 0, E = I->getNumOperands(); i != E; ++i) {
+ for (unsigned i = 0, E = I.getNumOperands(); i != E; ++i) {
if (i) Out << ",";
- writeOperand(I->getOperand(i), PrintAllTypes);
+ writeOperand(I.getOperand(i), PrintAllTypes);
}
}
printInfoComment(I);
- Out << endl;
-}
-
-
-// printType - Go to extreme measures to attempt to print out a short, symbolic
-// version of a type name.
-//
-ostream &AssemblyWriter::printType(const Type *Ty) {
- return printTypeInt(Out, Ty, TypeNames);
+ Out << "\n";
}
//===----------------------------------------------------------------------===//
+void Module::print(std::ostream &o) const {
+ SlotCalculator SlotTable(this, true);
+ AssemblyWriter W(o, SlotTable, this);
+ W.write(this);
+}
+
+void GlobalVariable::print(std::ostream &o) const {
+ SlotCalculator SlotTable(getParent(), true);
+ AssemblyWriter W(o, SlotTable, getParent());
+ W.write(this);
+}
-void WriteToAssembly(const Module *M, ostream &o) {
- if (M == 0) { o << "<null> module\n"; return; }
- SlotCalculator SlotTable(M, true);
- AssemblyWriter W(o, SlotTable, M);
+void Function::print(std::ostream &o) const {
+ SlotCalculator SlotTable(getParent(), true);
+ AssemblyWriter W(o, SlotTable, getParent());
- W.write(M);
+ W.write(this);
}
-void WriteToAssembly(const GlobalVariable *G, ostream &o) {
- if (G == 0) { o << "<null> global variable\n"; return; }
- SlotCalculator SlotTable(G->getParent(), true);
- AssemblyWriter W(o, SlotTable, G->getParent());
- W.write(G);
+void BasicBlock::print(std::ostream &o) const {
+ SlotCalculator SlotTable(getParent(), true);
+ AssemblyWriter W(o, SlotTable,
+ getParent() ? getParent()->getParent() : 0);
+ W.write(this);
}
-void WriteToAssembly(const Method *M, ostream &o) {
- if (M == 0) { o << "<null> method\n"; return; }
- SlotCalculator SlotTable(M->getParent(), true);
- AssemblyWriter W(o, SlotTable, M->getParent());
+void Instruction::print(std::ostream &o) const {
+ const Function *F = getParent() ? getParent()->getParent() : 0;
+ SlotCalculator SlotTable(F, true);
+ AssemblyWriter W(o, SlotTable, F ? F->getParent() : 0);
- W.write(M);
+ W.write(this);
}
+void Constant::print(std::ostream &o) const {
+ if (this == 0) { o << "<null> constant value\n"; return; }
-void WriteToAssembly(const BasicBlock *BB, ostream &o) {
- if (BB == 0) { o << "<null> basic block\n"; return; }
+ // Handle CPR's special, because they have context information...
+ if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(this)) {
+ CPR->getValue()->print(o); // Print as a global value, with context info.
+ return;
+ }
- SlotCalculator SlotTable(BB->getParent(), true);
- AssemblyWriter W(o, SlotTable,
- BB->getParent() ? BB->getParent()->getParent() : 0);
+ o << " " << getType()->getDescription() << " ";
- W.write(BB);
+ map<const Type *, string> TypeTable;
+ WriteConstantInt(o, this, false, TypeTable, 0);
}
-void WriteToAssembly(const Constant *CPV, ostream &o) {
- if (CPV == 0) { o << "<null> constant pool value\n"; return; }
- o << " " << CPV->getType()->getDescription() << " " << CPV->getStrValue();
+void Type::print(std::ostream &o) const {
+ if (this == 0)
+ o << "<null Type>";
+ else
+ o << getDescription();
}
-void WriteToAssembly(const Instruction *I, ostream &o) {
- if (I == 0) { o << "<null> instruction\n"; return; }
+void Argument::print(std::ostream &o) const {
+ o << getType() << " " << getName();
+}
- const Method *M = I->getParent() ? I->getParent()->getParent() : 0;
- SlotCalculator SlotTable(M, true);
- AssemblyWriter W(o, SlotTable, M ? M->getParent() : 0);
+void Value::dump() const { print(std::cerr); }
- W.write(I);
-}
+//===----------------------------------------------------------------------===//
+// CachedWriter Class Implementation
+//===----------------------------------------------------------------------===//
void CachedWriter::setModule(const Module *M) {
delete SC; delete AW;
assert(AW && SC && "CachedWriter does not have a current module!");
switch (V->getValueType()) {
case Value::ConstantVal:
- Out << " "; AW->write(V->getType());
- Out << " " << cast<Constant>(V)->getStrValue(); break;
- case Value::MethodArgumentVal:
- AW->write(V->getType()); Out << " " << V->getName(); break;
+ case Value::ArgumentVal: AW->writeOperand(V, true, true); break;
case Value::TypeVal: AW->write(cast<const Type>(V)); break;
case Value::InstructionVal: AW->write(cast<Instruction>(V)); break;
case Value::BasicBlockVal: AW->write(cast<BasicBlock>(V)); break;
- case Value::MethodVal: AW->write(cast<Method>(V)); break;
+ case Value::FunctionVal: AW->write(cast<Function>(V)); break;
case Value::GlobalVariableVal: AW->write(cast<GlobalVariable>(V)); break;
- case Value::ModuleVal: AW->write(cast<Module>(V)); break;
default: Out << "<unknown value type: " << V->getValueType() << ">"; break;
}
return *this;