6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-07-19 19:30:10 +00:00
Code Issues Projects Releases Wiki Activity
dd841aeb8d
llvm-6502/lib/VMCore/AsmWriter.cpp
Chris Lattner 7a716added Changes to: 
* Fix bug printing method types (oops when converting previous code)
* Move some of the code from Constant::getStrValue implementations here.
  This allows us to do a MUCH MUCH better job printing out complex constant
  values (think an array of structure pointers), because we print symbolic
  type names instead of structural.  The assistance when debugging is immense

Eventually, Constant::getStrValue should be removed (it existed before because
the asmwriter file was not in VMCore), and everyone should go through the
asmwriter that want's equivalent functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2268 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-16 21:36:08 +00:00

839 lines
28 KiB
C++
Raw Blame History

//===-- AsmWriter.cpp - Printing LLVM as an assembly file -----------------===//
//
// This library implements the functionality defined in llvm/Assembly/Writer.h
//
// 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.
//
// TODO: print out the type name instead of the full type if a particular type
// is in the symbol table...
//
//===----------------------------------------------------------------------===//
#include "llvm/Assembly/CachedWriter.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/SlotCalculator.h"
#include "llvm/Module.h"
#include "llvm/Function.h"
#include "llvm/GlobalVariable.h"
#include "llvm/BasicBlock.h"
#include "llvm/ConstantVals.h"
#include "llvm/iMemory.h"
#include "llvm/iTerminators.h"
#include "llvm/iPHINode.h"
#include "llvm/iOther.h"
#include "llvm/SymbolTable.h"
#include "llvm/Argument.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 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 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 Function *M = I->getParent() ? I->getParent()->getParent() : 0;
return M ? M->getParent() : 0;
} 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 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)){
return new SlotCalculator(GV->getParent(), true);
} else if (const Function *Func = dyn_cast<const Function>(V)) {
return new SlotCalculator(Func, true);
} else if (const Module *Mod = dyn_cast<const Module>(V)) {
return new SlotCalculator(Mod, true);
}
return 0;
}
// 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(std::make_pair(Ty, "%"+I->first));
}
}
}
}
static string calcTypeName(const Type *Ty, vector<const Type *> &TypeStack,
map<const Type *, string> &TypeNames) {
if (Ty->isPrimitiveType()) return Ty->getDescription(); // Base case
// 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;
switch (Ty->getPrimitiveID()) {
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 (FTy->isVarArg()) {
if (!FTy->getParamTypes().empty()) Result += ", ";
Result += "...";
}
Result += ")";
break;
}
case Type::StructTyID: {
const StructType *STy = cast<const StructType>(Ty);
Result = "{ ";
for (StructType::ElementTypes::const_iterator
I = STy->getElementTypes().begin(),
E = STy->getElementTypes().end(); I != E; ++I) {
if (I != STy->getElementTypes().begin())
Result += ", ";
Result += calcTypeName(*I, TypeStack, TypeNames);
}
Result += " }";
break;
}
case Type::PointerTyID:
Result = calcTypeName(cast<const PointerType>(Ty)->getElementType(),
TypeStack, TypeNames) + "*";
break;
case Type::ArrayTyID: {
const ArrayType *ATy = cast<const ArrayType>(Ty);
Result = "[" + utostr(ATy->getNumElements()) + " x ";
Result += calcTypeName(ATy->getElementType(), TypeStack, TypeNames) + "]";
break;
}
default:
assert(0 && "Unhandled case in getTypeProps!");
Result = "<error>";
}
TypeStack.pop_back(); // Remove self from stack...
return Result;
}
// printTypeInt - The internal guts of printing out a type that has a
// potentially named portion.
//
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.
//
if (Ty->isPrimitiveType()) 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 TypeName = calcTypeName(Ty, TypeStack, TypeNames);
TypeNames.insert(std::make_pair(Ty, TypeName));//Cache type name for later use
return Out << TypeName;
}
// WriteTypeSymbolic - This attempts to write the specified type as a symbolic
// type, iff there is an entry in the modules symbol table for the specified
// type or one of it's component types. This is slower than a simple x << Type;
//
ostream &WriteTypeSymbolic(ostream &Out, const Type *Ty, const Module *M) {
Out << " ";
// 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()) {
map<const Type *, string> TypeNames;
fillTypeNameTable(M, TypeNames);
return printTypeInt(Out, Ty, TypeNames);
} else {
return Out << Ty->getDescription();
}
}
static void WriteConstantInt(ostream &Out, const Constant *CV, bool PrintName,
map<const Type *, string> &TypeTable,
SlotCalculator *Table) {
if (const ConstantArray *CA = dyn_cast<ConstantArray>(CV)) {
const Type *SubType = CA->getType()->getElementType();
if (SubType == Type::SByteTy) {
Out << CV->getStrValue(); // Output string format if possible...
} else {
Out << "[";
if (CA->getNumOperands()) {
Out << " ";
printTypeInt(Out, SubType, TypeTable);
WriteAsOperandInternal(Out, CA->getOperand(0),
PrintName, TypeTable, Table);
for (unsigned i = 1, e = CA->getNumOperands(); i != e; ++i) {
Out << ", ";
printTypeInt(Out, SubType, 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";
// FIXME: Handle ConstantPointerRef + lots of others...
} else {
Out << CV->getStrValue();
}
}
// 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) {
map<const Type *, string> TypeNames;
const Module *M = getModuleFromVal(V);
if (M && M->hasSymbolTable())
fillTypeNameTable(M, TypeNames);
if (PrintType)
printTypeInt(Out, V->getType(), TypeNames);
WriteAsOperandInternal(Out, V, PrintName, TypeNames, Table);
return Out;
}
class AssemblyWriter {
ostream &Out;
SlotCalculator &Table;
const Module *TheModule;
map<const Type *, string> TypeNames;
public:
inline AssemblyWriter(ostream &o, SlotCalculator &Tab, const Module *M)
: Out(o), Table(Tab), TheModule(M) {
// If the module has a symbol table, take all global types and stuff their
// names into the TypeNames map.
//
fillTypeNameTable(M, TypeNames);
}
inline void write(const Module *M) { printModule(M); }
inline void write(const GlobalVariable *G) { printGlobal(G); }
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 Constant *CPV) { printConstant(CPV); }
inline void write(const Type *Ty) { printType(Ty); }
private :
void printModule(const Module *M);
void printSymbolTable(const SymbolTable &ST);
void printConstant(const Constant *CPV);
void printGlobal(const GlobalVariable *GV);
void printFunction(const Function *F);
void printArgument(const Argument *FA);
void printBasicBlock(const BasicBlock *BB);
void printInstruction(const Instruction *I);
// 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);
void writeOperand(const Value *Op, bool PrintType, bool PrintName = true);
// printInfoComment - Print a little comment after the instruction indicating
// which slot it occupies.
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 (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 (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 (PointerType *PTy = dyn_cast<PointerType>(Ty)) {
printType(PTy->getElementType()) << "*";
} else if (ArrayType *ATy = dyn_cast<ArrayType>(Ty)) {
Out << "[" << ATy->getNumElements() << " x ";
printType(ATy->getElementType()) << "]";
} else {
assert(Ty->isPrimitiveType() && "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, TypeNames, &Table);
}
void AssemblyWriter::printModule(const Module *M) {
// Loop over the symbol table, emitting all named constants...
if (M->hasSymbolTable())
printSymbolTable(*M->getSymbolTable());
for_each(M->gbegin(), M->gend(),
bind_obj(this, &AssemblyWriter::printGlobal));
Out << "implementation\n";
// Output all of the functions...
for_each(M->begin(), M->end(), bind_obj(this,&AssemblyWriter::printFunction));
}
void AssemblyWriter::printGlobal(const GlobalVariable *GV) {
if (GV->hasName()) Out << "%" << GV->getName() << " = ";
if (GV->hasInternalLinkage()) Out << "internal ";
if (!GV->hasInitializer()) Out << "uninitialized ";
Out << (GV->isConstant() ? "constant " : "global ");
printType(GV->getType()->getElementType());
if (GV->hasInitializer())
writeOperand(GV->getInitializer(), false, false);
printInfoComment(GV);
Out << "\n";
}
// printSymbolTable - Run through symbol table looking for named constants
// if a named constant is found, emit it's declaration...
//
void AssemblyWriter::printSymbolTable(const SymbolTable &ST) {
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);
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)) {
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";
}
}
}
}
// printConstant - Print out a constant pool entry...
//
void AssemblyWriter::printConstant(const Constant *CPV) {
// Don't print out unnamed constants, they will be inlined
if (!CPV->hasName()) return;
// Print out name...
Out << "\t%" << CPV->getName() << " =";
// Write the value out now...
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 << "\n";
}
// printFunction - Print all aspects of a function.
//
void AssemblyWriter::printFunction(const Function *M) {
// Print out the return type and name...
Out << "\n" << (M->isExternal() ? "declare " : "")
<< (M->hasInternalLinkage() ? "internal " : "");
printType(M->getReturnType()) << " \"" << M->getName() << "\"(";
Table.incorporateFunction(M);
// Loop over the arguments, printing them...
const FunctionType *MT = M->getFunctionType();
if (!M->isExternal()) {
for_each(M->getArgumentList().begin(), M->getArgumentList().end(),
bind_obj(this, &AssemblyWriter::printArgument));
} else {
// Loop over the arguments, printing them...
const FunctionType *MT = 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);
}
}
// Finish printing arguments...
if (MT->isVarArg()) {
if (MT->getParamTypes().size()) Out << ", ";
Out << "..."; // Output varargs portion of signature!
}
Out << ")\n";
if (!M->isExternal()) {
// Loop over the symbol table, emitting all named constants...
if (M->hasSymbolTable())
printSymbolTable(*M->getSymbolTable());
Out << "begin";
// Output all of its basic blocks... for the function
for_each(M->begin(), M->end(),
bind_obj(this, &AssemblyWriter::printBasicBlock));
Out << "end\n";
}
Table.purgeFunction();
}
// printArgument - This member is called for every argument that
// is passed into the function. Simply print it out
//
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 << ", ";
// Output type...
printType(Arg->getType());
// Output name, if available...
if (Arg->hasName())
Out << " %" << Arg->getName();
else if (Table.getValSlot(Arg) < 0)
Out << "<badref>";
}
// printBasicBlock - This member is called for each basic block in a methd.
//
void AssemblyWriter::printBasicBlock(const BasicBlock *BB) {
if (BB->hasName()) { // Print out the label if it exists...
Out << "\n" << BB->getName() << ":";
} else {
int Slot = Table.getValSlot(BB);
Out << "\n; <label>:";
if (Slot >= 0)
Out << Slot; // Extra newline seperates out label's
else
Out << "<badref>";
}
Out << "\t\t\t\t\t;[#uses=" << BB->use_size() << "]\n"; // Output # uses
// Output all of the instructions in the basic block...
for_each(BB->begin(), BB->end(),
bind_obj(this, &AssemblyWriter::printInstruction));
}
// printInfoComment - Print a little comment after the instruction indicating
// which slot it occupies.
//
void AssemblyWriter::printInfoComment(const Value *V) {
if (V->getType() != Type::VoidTy) {
Out << "\t\t; <";
printType(V->getType()) << ">";
if (!V->hasName()) {
int Slot = Table.getValSlot(V); // Print out the def slot taken...
if (Slot >= 0) Out << ":" << Slot;
else Out << ":<badref>";
}
Out << " [#uses=" << V->use_size() << "]"; // Output # uses
}
}
// printInstruction - This member is called for each Instruction in a methd.
//
void AssemblyWriter::printInstruction(const Instruction *I) {
Out << "\t";
// Print out name if it exists...
if (I && I->hasName())
Out << "%" << I->getName() << " = ";
// Print out the opcode...
Out << I->getOpcodeName();
// Print out the type of the operands...
const Value *Operand = I->getNumOperands() ? I->getOperand(0) : 0;
// Special case conditional branches to swizzle the condition out to the front
if (isa<BranchInst>(I) && I->getNumOperands() > 1) {
writeOperand(I->getOperand(2), true);
Out << ",";
writeOperand(Operand, true);
Out << ",";
writeOperand(I->getOperand(1), true);
} 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 << " [";
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);
}
Out << "\n\t]";
} else if (isa<PHINode>(I)) {
Out << " ";
printType(I->getType());
Out << " ";
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 << " ]";
}
} else if (isa<ReturnInst>(I) && !Operand) {
Out << " void";
} else if (isa<CallInst>(I)) {
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 function,
// and if the value returned is not a pointer to a function.
//
if (RetTy && MTy && !MTy->isVarArg() &&
(!isa<PointerType>(RetTy) ||
!isa<FunctionType>(cast<PointerType>(RetTy)))) {
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) {
Out << ",";
writeOperand(I->getOperand(op), true);
}
Out << " )";
} 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) {
Out << ",";
writeOperand(I->getOperand(op), true);
}
Out << " )\n\t\t\tto";
writeOperand(II->getNormalDest(), true);
Out << " except";
writeOperand(II->getExceptionalDest(), true);
} else if (const AllocationInst *AI = dyn_cast<AllocationInst>(I)) {
Out << " ";
printType(AI->getType()->getElementType());
if (AI->isArrayAllocation()) {
Out << ",";
writeOperand(AI->getArraySize(), true);
}
} else if (isa<CastInst>(I)) {
writeOperand(Operand, true);
Out << " to ";
printType(I->getType());
} else if (Operand) { // Print the normal way...
// PrintAllTypes - Instructions who have operands of all the same type
// omit the type from all but the first operand. If the instruction has
// different type operands (for example br), then they are all printed.
bool PrintAllTypes = false;
const Type *TheType = Operand->getType();
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;
}
}
// Shift Left & Right print both types even for Ubyte LHS
if (isa<ShiftInst>(I)) PrintAllTypes = true;
if (!PrintAllTypes) {
Out << " ";
printType(I->getOperand(0)->getType());
}
for (unsigned i = 0, E = I->getNumOperands(); i != E; ++i) {
if (i) Out << ",";
writeOperand(I->getOperand(i), PrintAllTypes);
}
}
printInfoComment(I);
Out << "\n";
}
//===----------------------------------------------------------------------===//
// External Interface declarations
//===----------------------------------------------------------------------===//
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 Function::print(std::ostream &o) const {
SlotCalculator SlotTable(getParent(), true);
AssemblyWriter W(o, SlotTable, getParent());
W.write(this);
}
void BasicBlock::print(std::ostream &o) const {
SlotCalculator SlotTable(getParent(), true);
AssemblyWriter W(o, SlotTable,
getParent() ? getParent()->getParent() : 0);
W.write(this);
}
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(this);
}
void Constant::print(std::ostream &o) const {
if (this == 0) { o << "<null> constant value\n"; return; }
o << " " << getType()->getDescription() << " " << getStrValue();
}
void Type::print(std::ostream &o) const {
if (this == 0)
o << "<null Type>";
else
o << getDescription();
}
void Argument::print(std::ostream &o) const {
o << getType() << " " << getName();
}
void Value::dump() const { print(std::cerr); }
//===----------------------------------------------------------------------===//
// CachedWriter Class Implementation
//===----------------------------------------------------------------------===//
void CachedWriter::setModule(const Module *M) {
delete SC; delete AW;
if (M) {
SC = new SlotCalculator(M, true);
AW = new AssemblyWriter(Out, *SC, M);
} else {
SC = 0; AW = 0;
}
}
CachedWriter::~CachedWriter() {
delete AW;
delete SC;
}
CachedWriter &CachedWriter::operator<<(const Value *V) {
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::ArgumentVal:
AW->write(V->getType()); Out << " " << V->getName(); 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::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;
}
Reference in New Issue View Git Blame Copy Permalink