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//===-- llvm/CodeGen/MachineDebugInfo.cpp -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by James M. Laskey and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/MachineDebugInfo.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Intrinsics.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/Support/Dwarf.h"
#include <iostream>
using namespace llvm;
// Handle the Pass registration stuff necessary to use TargetData's.
namespace {
RegisterPass<MachineDebugInfo> X("machinedebuginfo", "Debug Information");
//===----------------------------------------------------------------------===//
/// getGlobalVariablesUsing - Return all of the GlobalVariables which have the
/// specified value in their initializer somewhere.
static void
getGlobalVariablesUsing(Value *V, std::vector<GlobalVariable*> &Result) {
// Scan though value users.
for (Value::use_iterator I = V->use_begin(), E = V->use_end(); I != E; ++I) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(*I)) {
// If the user is a GlobalVariable then add to result.
Result.push_back(GV);
} else if (Constant *C = dyn_cast<Constant>(*I)) {
// If the user is a constant variable then scan its users
getGlobalVariablesUsing(C, Result);
}
}
}
/// getGlobalVariablesUsing - Return all of the GlobalVariables that use the
/// named GlobalVariable.
static std::vector<GlobalVariable*>
getGlobalVariablesUsing(Module &M, const std::string &RootName) {
std::vector<GlobalVariable*> Result; // GlobalVariables matching criteria.
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std::vector<const Type*> FieldTypes;
FieldTypes.push_back(Type::UIntTy);
FieldTypes.push_back(PointerType::get(Type::SByteTy));
// Get the GlobalVariable root.
GlobalVariable *UseRoot = M.getGlobalVariable(RootName,
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StructType::get(FieldTypes));
// If present and linkonce then scan for users.
if (UseRoot && UseRoot->hasLinkOnceLinkage()) {
getGlobalVariablesUsing(UseRoot, Result);
}
return Result;
}
/// getStringValue - Turn an LLVM constant pointer that eventually points to a
/// global into a string value. Return an empty string if we can't do it.
///
static const std::string getStringValue(Value *V, unsigned Offset = 0) {
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if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
if (GV->hasInitializer() && isa<ConstantArray>(GV->getInitializer())) {
ConstantArray *Init = cast<ConstantArray>(GV->getInitializer());
if (Init->isString()) {
std::string Result = Init->getAsString();
if (Offset < Result.size()) {
// If we are pointing INTO The string, erase the beginning...
Result.erase(Result.begin(), Result.begin()+Offset);
// Take off the null terminator, and any string fragments after it.
std::string::size_type NullPos = Result.find_first_of((char)0);
if (NullPos != std::string::npos)
Result.erase(Result.begin()+NullPos, Result.end());
return Result;
}
}
}
} else if (Constant *C = dyn_cast<Constant>(V)) {
if (GlobalValue *GV = dyn_cast<GlobalValue>(C))
return getStringValue(GV, Offset);
else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
if (CE->getOpcode() == Instruction::GetElementPtr) {
// Turn a gep into the specified offset.
if (CE->getNumOperands() == 3 &&
cast<Constant>(CE->getOperand(1))->isNullValue() &&
isa<ConstantInt>(CE->getOperand(2))) {
return getStringValue(CE->getOperand(0),
Offset+cast<ConstantInt>(CE->getOperand(2))->getRawValue());
}
}
}
}
return "";
}
/// isStringValue - Return true if the given value can be coerced to a string.
///
static bool isStringValue(Value *V) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
if (GV->hasInitializer() && isa<ConstantArray>(GV->getInitializer())) {
ConstantArray *Init = cast<ConstantArray>(GV->getInitializer());
return Init->isString();
}
} else if (Constant *C = dyn_cast<Constant>(V)) {
if (GlobalValue *GV = dyn_cast<GlobalValue>(C))
return isStringValue(GV);
else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
if (CE->getOpcode() == Instruction::GetElementPtr) {
if (CE->getNumOperands() == 3 &&
cast<Constant>(CE->getOperand(1))->isNullValue() &&
isa<ConstantInt>(CE->getOperand(2))) {
return isStringValue(CE->getOperand(0));
}
}
}
}
return false;
}
/// getGlobalVariable - Return either a direct or cast Global value.
///
static GlobalVariable *getGlobalVariable(Value *V) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
return GV;
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
if (CE->getOpcode() == Instruction::Cast) {
return dyn_cast<GlobalVariable>(CE->getOperand(0));
}
}
return NULL;
}
/// isGlobalVariable - Return true if the given value can be coerced to a
/// GlobalVariable.
if (isa<GlobalVariable>(V) || isa<ConstantPointerNull>(V)) {
return true;
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
if (CE->getOpcode() == Instruction::Cast) {
return isa<GlobalVariable>(CE->getOperand(0));
}
}
return false;
}
/// getUIntOperand - Return ith operand if it is an unsigned integer.
static ConstantUInt *getUIntOperand(GlobalVariable *GV, unsigned i) {
// Make sure the GlobalVariable has an initializer.
// Get the initializer constant.
ConstantStruct *CI = dyn_cast<ConstantStruct>(GV->getInitializer());
// Check if there is at least i + 1 operands.
unsigned N = CI->getNumOperands();
// Check constant.
return dyn_cast<ConstantUInt>(CI->getOperand(i));
}
//===----------------------------------------------------------------------===//
/// ApplyToFields - Target the visitor to each field of the debug information
void DIVisitor::ApplyToFields(DebugInfoDesc *DD) {
DD->ApplyToFields(this);
}
//===----------------------------------------------------------------------===//
/// DICountVisitor - This DIVisitor counts all the fields in the supplied debug
/// the supplied DebugInfoDesc.
class DICountVisitor : public DIVisitor {
private:
unsigned Count; // Running count of fields.
public:
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DICountVisitor() : DIVisitor(), Count(0) {}
// Accessors.
unsigned getCount() const { return Count; }
/// Apply - Count each of the fields.
///
virtual void Apply(int &Field) { ++Count; }
virtual void Apply(unsigned &Field) { ++Count; }
virtual void Apply(uint64_t &Field) { ++Count; }
virtual void Apply(bool &Field) { ++Count; }
virtual void Apply(std::string &Field) { ++Count; }
virtual void Apply(DebugInfoDesc *&Field) { ++Count; }
virtual void Apply(GlobalVariable *&Field) { ++Count; }
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
++Count;
}
//===----------------------------------------------------------------------===//
/// DIDeserializeVisitor - This DIVisitor deserializes all the fields in the
/// supplied DebugInfoDesc.
class DIDeserializeVisitor : public DIVisitor {
private:
DIDeserializer &DR; // Active deserializer.
unsigned I; // Current operand index.
ConstantStruct *CI; // GlobalVariable constant initializer.
public:
DIDeserializeVisitor(DIDeserializer &D, GlobalVariable *GV)
: DIVisitor()
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, I(0)
, CI(cast<ConstantStruct>(GV->getInitializer()))
{}
/// Apply - Set the value of each of the fields.
///
virtual void Apply(int &Field) {
Constant *C = CI->getOperand(I++);
Field = cast<ConstantSInt>(C)->getValue();
}
virtual void Apply(unsigned &Field) {
Constant *C = CI->getOperand(I++);
Field = cast<ConstantUInt>(C)->getValue();
}
virtual void Apply(int64_t &Field) {
Constant *C = CI->getOperand(I++);
Field = cast<ConstantSInt>(C)->getValue();
}
virtual void Apply(uint64_t &Field) {
Constant *C = CI->getOperand(I++);
Field = cast<ConstantUInt>(C)->getValue();
}
virtual void Apply(bool &Field) {
Constant *C = CI->getOperand(I++);
Field = cast<ConstantBool>(C)->getValue();
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
Field = getStringValue(C);
}
virtual void Apply(DebugInfoDesc *&Field) {
Constant *C = CI->getOperand(I++);
Field = DR.Deserialize(C);
}
virtual void Apply(GlobalVariable *&Field) {
Constant *C = CI->getOperand(I++);
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
Constant *C = CI->getOperand(I++);
GlobalVariable *GV = getGlobalVariable(C);
ConstantArray *CA = cast<ConstantArray>(GV->getInitializer());
Field.resize(0);
for (unsigned i = 0, N = CA->getNumOperands(); i < N; ++i) {
GlobalVariable *GVE = getGlobalVariable(CA->getOperand(i));
DebugInfoDesc *DE = DR.Deserialize(GVE);
Field.push_back(DE);
}
}
//===----------------------------------------------------------------------===//
/// DISerializeVisitor - This DIVisitor serializes all the fields in
/// the supplied DebugInfoDesc.
private:
DISerializer &SR; // Active serializer.
std::vector<Constant*> &Elements; // Element accumulator.
public:
DISerializeVisitor(DISerializer &S, std::vector<Constant*> &E)
: DIVisitor()
, SR(S)
, Elements(E)
{}
/// Apply - Set the value of each of the fields.
///
virtual void Apply(int &Field) {
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Elements.push_back(ConstantSInt::get(Type::IntTy, Field));
}
virtual void Apply(unsigned &Field) {
Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
}
virtual void Apply(int64_t &Field) {
Elements.push_back(ConstantSInt::get(Type::IntTy, Field));
}
virtual void Apply(uint64_t &Field) {
Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
}
virtual void Apply(bool &Field) {
Elements.push_back(ConstantBool::get(Field));
}
virtual void Apply(std::string &Field) {
Elements.push_back(SR.getString(Field));
}
virtual void Apply(DebugInfoDesc *&Field) {
GlobalVariable *GV = NULL;
// If non-NULL the convert to global.
if (Field) GV = SR.Serialize(Field);
// FIXME - At some point should use specific type.
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
if (GV) {
// Set to pointer to global.
Elements.push_back(ConstantExpr::getCast(GV, EmptyTy));
} else {
// Use NULL.
Elements.push_back(ConstantPointerNull::get(EmptyTy));
}
}
virtual void Apply(GlobalVariable *&Field) {
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
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if (Field) {
Elements.push_back(ConstantExpr::getCast(Field, EmptyTy));
} else {
Elements.push_back(ConstantPointerNull::get(EmptyTy));
}
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
unsigned N = Field.size();
ArrayType *AT = ArrayType::get(EmptyTy, N);
std::vector<Constant *> ArrayElements;
for (unsigned i = 0, N = Field.size(); i < N; ++i) {
GlobalVariable *GVE = SR.Serialize(Field[i]);
Constant *CE = ConstantExpr::getCast(GVE, EmptyTy);
ArrayElements.push_back(cast<Constant>(CE));
}
Constant *CA = ConstantArray::get(AT, ArrayElements);
GlobalVariable *CAGV = new GlobalVariable(AT, true,
GlobalValue::InternalLinkage,
CA, "llvm.dbg.array",
SR.getModule());
Constant *CAE = ConstantExpr::getCast(CAGV, EmptyTy);
};
//===----------------------------------------------------------------------===//
/// DIGetTypesVisitor - This DIVisitor gathers all the field types in
/// the supplied DebugInfoDesc.
private:
DISerializer &SR; // Active serializer.
std::vector<const Type*> &Fields; // Type accumulator.
public:
DIGetTypesVisitor(DISerializer &S, std::vector<const Type*> &F)
: DIVisitor()
, SR(S)
, Fields(F)
{}
/// Apply - Set the value of each of the fields.
///
virtual void Apply(int &Field) {
Fields.push_back(Type::IntTy);
}
virtual void Apply(unsigned &Field) {
Fields.push_back(Type::UIntTy);
}
virtual void Apply(int64_t &Field) {
Fields.push_back(Type::IntTy);
}
virtual void Apply(uint64_t &Field) {
Fields.push_back(Type::UIntTy);
}
virtual void Apply(bool &Field) {
Fields.push_back(Type::BoolTy);
}
virtual void Apply(std::string &Field) {
Fields.push_back(SR.getStrPtrType());
}
virtual void Apply(DebugInfoDesc *&Field) {
// FIXME - At some point should use specific type.
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
Fields.push_back(EmptyTy);
}
virtual void Apply(GlobalVariable *&Field) {
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
Fields.push_back(EmptyTy);
}
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
Fields.push_back(EmptyTy);
}
};
//===----------------------------------------------------------------------===//
/// DIVerifyVisitor - This DIVisitor verifies all the field types against
/// a constant initializer.
private:
DIVerifier &VR; // Active verifier.
bool IsValid; // Validity status.
unsigned I; // Current operand index.
ConstantStruct *CI; // GlobalVariable constant initializer.
public:
DIVerifyVisitor(DIVerifier &V, GlobalVariable *GV)
: DIVisitor()
, VR(V)
, IsValid(true)
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, I(0)
, CI(cast<ConstantStruct>(GV->getInitializer()))
{
}
// Accessors.
bool isValid() const { return IsValid; }
/// Apply - Set the value of each of the fields.
///
virtual void Apply(int &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isa<ConstantInt>(C);
}
virtual void Apply(unsigned &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isa<ConstantInt>(C);
}
virtual void Apply(int64_t &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isa<ConstantInt>(C);
}
virtual void Apply(uint64_t &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isa<ConstantInt>(C);
}
virtual void Apply(bool &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isa<ConstantBool>(C);
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isStringValue(C);
}
virtual void Apply(DebugInfoDesc *&Field) {
// FIXME - Prepare the correct descriptor.
Constant *C = CI->getOperand(I++);
}
virtual void Apply(GlobalVariable *&Field) {
Constant *C = CI->getOperand(I++);
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isGlobalVariable(C);
if (!IsValid) return;
GlobalVariable *GV = getGlobalVariable(C);
IsValid = IsValid && GV && GV->hasInitializer();
if (!IsValid) return;
ConstantArray *CA = dyn_cast<ConstantArray>(GV->getInitializer());
IsValid = IsValid && CA;
if (!IsValid) return;
for (unsigned i = 0, N = CA->getNumOperands(); IsValid && i < N; ++i) {
IsValid = IsValid && isGlobalVariable(CA->getOperand(i));
if (!IsValid) return;
GlobalVariable *GVE = getGlobalVariable(CA->getOperand(i));
VR.Verify(GVE);
}
}
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//===----------------------------------------------------------------------===//
/// TagFromGlobal - Returns the Tag number from a debug info descriptor
/// GlobalVariable.
unsigned DebugInfoDesc::TagFromGlobal(GlobalVariable *GV) {
ConstantUInt *C = getUIntOperand(GV, 0);
return C ? (unsigned)C->getValue() : (unsigned)DIInvalid;
}
/// DescFactory - Create an instance of debug info descriptor based on Tag.
/// Return NULL if not a recognized Tag.
DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
switch (Tag) {
case DI_TAG_anchor: return new AnchorDesc();
case DI_TAG_compile_unit: return new CompileUnitDesc();
case DI_TAG_global_variable: return new GlobalVariableDesc();
case DI_TAG_subprogram: return new SubprogramDesc();
case DI_TAG_basictype: return new BasicTypeDesc();
case DI_TAG_typedef:
case DI_TAG_pointer:
case DI_TAG_reference:
case DI_TAG_const:
case DI_TAG_volatile:
case DI_TAG_restrict: return new DerivedTypeDesc(Tag);
case DI_TAG_array:
case DI_TAG_struct:
case DI_TAG_union:
case DI_TAG_enum: return new CompositeTypeDesc(Tag);
case DI_TAG_subrange: return new SubrangeDesc();
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default: break;
}
return NULL;
}
/// getLinkage - get linkage appropriate for this type of descriptor.
///
GlobalValue::LinkageTypes DebugInfoDesc::getLinkage() const {
return GlobalValue::InternalLinkage;
}
/// ApplyToFields - Target the vistor to the fields of the descriptor.
///
void DebugInfoDesc::ApplyToFields(DIVisitor *Visitor) {
Visitor->Apply(Tag);
}
//===----------------------------------------------------------------------===//
/// getLinkage - get linkage appropriate for this type of descriptor.
///
GlobalValue::LinkageTypes AnchorDesc::getLinkage() const {
return GlobalValue::LinkOnceLinkage;
}
/// ApplyToFields - Target the visitor to the fields of the TransUnitDesc.
///
void AnchorDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
Visitor->Apply(Name);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *AnchorDesc::getDescString() const {
return Name.c_str();
}
/// getTypeString - Return a string used to label this descriptors type.
///
const char *AnchorDesc::getTypeString() const {
return "llvm.dbg.anchor.type";
}
#ifndef NDEBUG
void AnchorDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Name(" << Name << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
AnchoredDesc::AnchoredDesc(unsigned T)
: DebugInfoDesc(T)
, Anchor(NULL)
{}
/// ApplyToFields - Target the visitor to the fields of the AnchoredDesc.
///
void AnchoredDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
Visitor->Apply((DebugInfoDesc *&)Anchor);
}
//===----------------------------------------------------------------------===//
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CompileUnitDesc::CompileUnitDesc()
: AnchoredDesc(DI_TAG_compile_unit)
, DebugVersion(LLVMDebugVersion)
, Language(0)
, FileName("")
, Directory("")
, Producer("")
{}
/// DebugVersionFromGlobal - Returns the version number from a compile unit
/// GlobalVariable.
unsigned CompileUnitDesc::DebugVersionFromGlobal(GlobalVariable *GV) {
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ConstantUInt *C = getUIntOperand(GV, 2);
return C ? (unsigned)C->getValue() : (unsigned)DIInvalid;
/// ApplyToFields - Target the visitor to the fields of the CompileUnitDesc.
///
void CompileUnitDesc::ApplyToFields(DIVisitor *Visitor) {
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AnchoredDesc::ApplyToFields(Visitor);
Visitor->Apply(DebugVersion);
Visitor->Apply(Language);
Visitor->Apply(FileName);
Visitor->Apply(Directory);
Visitor->Apply(Producer);
}
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/// getDescString - Return a string used to compose global names and labels.
///
const char *CompileUnitDesc::getDescString() const {
return "llvm.dbg.compile_unit";
}
/// getTypeString - Return a string used to label this descriptors type.
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const char *CompileUnitDesc::getTypeString() const {
return "llvm.dbg.compile_unit.type";
}
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
const char *CompileUnitDesc::getAnchorString() const {
return "llvm.dbg.compile_units";
}
#ifndef NDEBUG
void CompileUnitDesc::dump() {
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std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
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<< "Anchor(" << getAnchor() << "), "
<< "DebugVersion(" << DebugVersion << "), "
<< "Language(" << Language << "), "
<< "FileName(\"" << FileName << "\"), "
<< "Directory(\"" << Directory << "\"), "
<< "Producer(\"" << Producer << "\")\n";
}
//===----------------------------------------------------------------------===//
TypeDesc::TypeDesc(unsigned T)
: DebugInfoDesc(T)
, Context(NULL)
, Name("")
, File(NULL)
, Size(0)
{}
/// ApplyToFields - Target the visitor to the fields of the TypeDesc.
///
void TypeDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
Visitor->Apply(Context);
Visitor->Apply(Name);
Visitor->Apply((DebugInfoDesc *&)File);
Visitor->Apply(Line);
Visitor->Apply(Size);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *TypeDesc::getDescString() const {
return "llvm.dbg.type";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *TypeDesc::getTypeString() const {
return "llvm.dbg.type.type";
}
#ifndef NDEBUG
void TypeDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Context(" << Context << "), "
<< "Name(\"" << Name << "\"), "
<< "File(" << File << "), "
<< "Line(" << Line << "), "
<< "Size(" << Size << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
BasicTypeDesc::BasicTypeDesc()
: TypeDesc(DI_TAG_basictype)
, Encoding(0)
{}
/// ApplyToFields - Target the visitor to the fields of the BasicTypeDesc.
///
void BasicTypeDesc::ApplyToFields(DIVisitor *Visitor) {
TypeDesc::ApplyToFields(Visitor);
Visitor->Apply(Encoding);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *BasicTypeDesc::getDescString() const {
return "llvm.dbg.basictype";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *BasicTypeDesc::getTypeString() const {
return "llvm.dbg.basictype.type";
}
#ifndef NDEBUG
void BasicTypeDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
<< "Size(" << getSize() << "), "
<< "Encoding(" << Encoding << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
DerivedTypeDesc::DerivedTypeDesc(unsigned T)
: TypeDesc(T)
/// ApplyToFields - Target the visitor to the fields of the DerivedTypeDesc.
void DerivedTypeDesc::ApplyToFields(DIVisitor *Visitor) {
TypeDesc::ApplyToFields(Visitor);
Visitor->Apply((DebugInfoDesc *&)FromType);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *DerivedTypeDesc::getDescString() const {
return "llvm.dbg.derivedtype";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *DerivedTypeDesc::getTypeString() const {
return "llvm.dbg.derivedtype.type";
}
void DerivedTypeDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
<< "Size(" << getSize() << "), "
<< "File(" << getFile() << "), "
<< "Line(" << getLine() << "), "
<< "FromType(" << FromType << ")\n";
//===----------------------------------------------------------------------===//
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CompositeTypeDesc::CompositeTypeDesc(unsigned T)
: DerivedTypeDesc(T)
, Elements()
{}
/// ApplyToFields - Target the visitor to the fields of the CompositeTypeDesc.
///
void CompositeTypeDesc::ApplyToFields(DIVisitor *Visitor) {
DerivedTypeDesc::ApplyToFields(Visitor);
Visitor->Apply(Elements);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *CompositeTypeDesc::getDescString() const {
return "llvm.dbg.compositetype";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *CompositeTypeDesc::getTypeString() const {
return "llvm.dbg.compositetype.type";
}
#ifndef NDEBUG
void CompositeTypeDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Context(" << getContext() << "), "
<< "Name(\"" << getName() << "\"), "
<< "Size(" << getSize() << "), "
<< "File(" << getFile() << "), "
<< "Line(" << getLine() << "), "
<< "FromType(" << getFromType() << "), "
<< "Elements.size(" << Elements.size() << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
SubrangeDesc::SubrangeDesc()
: DebugInfoDesc(DI_TAG_subrange)
, Lo(0)
, Hi(0)
{}
/// ApplyToFields - Target the visitor to the fields of the SubrangeDesc.
///
void SubrangeDesc::ApplyToFields(DIVisitor *Visitor) {
DebugInfoDesc::ApplyToFields(Visitor);
Visitor->Apply(Lo);
Visitor->Apply(Hi);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *SubrangeDesc::getDescString() const {
return "llvm.dbg.subrange";
}
/// getTypeString - Return a string used to label this descriptor's type.
///
const char *SubrangeDesc::getTypeString() const {
return "llvm.dbg.subrange.type";
}
#ifndef NDEBUG
void SubrangeDesc::dump() {
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Lo(" << Lo << "), "
<< "Hi(" << Hi << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
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GlobalDesc::GlobalDesc(unsigned T)
: AnchoredDesc(T)
, Context(0)
, Name("")
, TyDesc(NULL)
, IsStatic(false)
, IsDefinition(false)
{}
/// ApplyToFields - Target the visitor to the fields of the global.
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void GlobalDesc::ApplyToFields(DIVisitor *Visitor) {
AnchoredDesc::ApplyToFields(Visitor);
Visitor->Apply(Context);
Visitor->Apply(Name);
Visitor->Apply((DebugInfoDesc *&)TyDesc);
Visitor->Apply(IsStatic);
Visitor->Apply(IsDefinition);
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}
//===----------------------------------------------------------------------===//
GlobalVariableDesc::GlobalVariableDesc()
: GlobalDesc(DI_TAG_global_variable)
, Global(NULL)
{}
/// ApplyToFields - Target the visitor to the fields of the GlobalVariableDesc.
///
void GlobalVariableDesc::ApplyToFields(DIVisitor *Visitor) {
GlobalDesc::ApplyToFields(Visitor);
}
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/// getDescString - Return a string used to compose global names and labels.
///
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const char *GlobalVariableDesc::getDescString() const {
return "llvm.dbg.global_variable";
}
/// getTypeString - Return a string used to label this descriptors type.
///
const char *GlobalVariableDesc::getTypeString() const {
return "llvm.dbg.global_variable.type";
}
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
const char *GlobalVariableDesc::getAnchorString() const {
return "llvm.dbg.global_variables";
}
#ifndef NDEBUG
void GlobalVariableDesc::dump() {
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std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
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<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
<< "Type(\"" << getTypeDesc() << "\"), "
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<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << "), "
<< "Global(" << Global << "), "
<< "Line(" << Line << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
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SubprogramDesc::SubprogramDesc()
: GlobalDesc(DI_TAG_subprogram)
{}
/// ApplyToFields - Target the visitor to the fields of the
/// SubprogramDesc.
void SubprogramDesc::ApplyToFields(DIVisitor *Visitor) {
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GlobalDesc::ApplyToFields(Visitor);
}
/// getDescString - Return a string used to compose global names and labels.
///
const char *SubprogramDesc::getDescString() const {
return "llvm.dbg.subprogram";
}
/// getTypeString - Return a string used to label this descriptors type.
///
const char *SubprogramDesc::getTypeString() const {
return "llvm.dbg.subprogram.type";
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/// getAnchorString - Return a string used to label this descriptor's anchor.
///
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const char *SubprogramDesc::getAnchorString() const {
return "llvm.dbg.subprograms";
}
#ifndef NDEBUG
void SubprogramDesc::dump() {
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std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
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<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
<< "Type(\"" << getTypeDesc() << "\"), "
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<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << ")\n";
//===----------------------------------------------------------------------===//
DebugInfoDesc *DIDeserializer::Deserialize(Value *V) {
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return Deserialize(getGlobalVariable(V));
}
DebugInfoDesc *DIDeserializer::Deserialize(GlobalVariable *GV) {
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// Handle NULL.
if (!GV) return NULL;
// Check to see if it has been already deserialized.
DebugInfoDesc *&Slot = GlobalDescs[GV];
if (Slot) return Slot;
// Get the Tag from the global.
unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
// Get the debug version if a compile unit.
if (Tag == DI_TAG_compile_unit) {
DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
}
// Create an empty instance of the correct sort.
Slot = DebugInfoDesc::DescFactory(Tag);
assert(Slot && "Unknown Tag");
// Deserialize the fields.
DRAM.ApplyToFields(Slot);
return Slot;
}
//===----------------------------------------------------------------------===//
/// getStrPtrType - Return a "sbyte *" type.
///
const PointerType *DISerializer::getStrPtrType() {
// If not already defined.