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Reorg for integration with gcc4. Old style debug info will not be passed though

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to SelIDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26115 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey
2006-02-11 01:01:30 +00:00
parent c23580969f
commit ce72b1755f
3 changed files with 435 additions and 192 deletions
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356
lib/CodeGen/MachineDebugInfo.cpp
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@ -49,10 +49,14 @@ getGlobalVariablesUsing(Value *V, std::vector<GlobalVariable*> &Result) {
static std::vector<GlobalVariable*>
getGlobalVariablesUsing(Module &M, const std::string &RootName) {
std::vector<GlobalVariable*> Result; // GlobalVariables matching criteria.
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,
StructType::get(std::vector<const Type*>()));
StructType::get(FieldTypes));
// If present and linkonce then scan for users.
if (UseRoot && UseRoot->hasLinkOnceLinkage()) {
@ -168,28 +172,6 @@ static ConstantUInt *getUIntOperand(GlobalVariable *GV, unsigned i) {
// Check constant.
return dyn_cast<ConstantUInt>(CI->getOperand(i));
}
//===----------------------------------------------------------------------===//
/// 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_compile_unit: return new CompileUnitDesc();
case DI_TAG_global_variable: return new GlobalVariableDesc();
case DI_TAG_subprogram: return new SubprogramDesc();
default: break;
}
return NULL;
}
//===----------------------------------------------------------------------===//
/// ApplyToFields - Target the visitor to each field of the debug information
@ -206,7 +188,7 @@ private:
unsigned Count; // Running count of fields.
public:
DICountVisitor() : DIVisitor(), Count(1) {}
DICountVisitor() : DIVisitor(), Count(0) {}
// Accessors.
unsigned getCount() const { return Count; }
@ -234,7 +216,7 @@ public:
DIDeserializeVisitor(DIDeserializer &D, GlobalVariable *GV)
: DIVisitor()
, DR(D)
, I(1)
, I(0)
, CI(cast<ConstantStruct>(GV->getInitializer()))
{}
@ -284,7 +266,7 @@ public:
/// Apply - Set the value of each of the fields.
///
virtual void Apply(int &Field) {
Elements.push_back(ConstantUInt::get(Type::IntTy, Field));
Elements.push_back(ConstantSInt::get(Type::IntTy, Field));
}
virtual void Apply(unsigned &Field) {
Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
@ -314,7 +296,11 @@ public:
}
virtual void Apply(GlobalVariable *&Field) {
const PointerType *EmptyTy = SR.getEmptyStructPtrType();
Elements.push_back(ConstantExpr::getCast(Field, EmptyTy));
if (Field) {
Elements.push_back(ConstantExpr::getCast(Field, EmptyTy));
} else {
Elements.push_back(ConstantPointerNull::get(EmptyTy));
}
}
};
@ -373,7 +359,7 @@ public:
: DIVisitor()
, VR(V)
, IsValid(true)
, I(1)
, I(0)
, CI(cast<ConstantStruct>(GV->getInitializer()))
{
}
@ -410,36 +396,146 @@ public:
}
};
//===----------------------------------------------------------------------===//
/// 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();
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);
}
//===----------------------------------------------------------------------===//
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) {
ConstantUInt *C = getUIntOperand(GV, 1);
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) {
AnchoredDesc::ApplyToFields(Visitor);
Visitor->Apply(DebugVersion);
Visitor->Apply(Language);
Visitor->Apply(FileName);
Visitor->Apply(Directory);
Visitor->Apply(Producer);
Visitor->Apply(TransUnit);
}
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
const char *CompileUnitDesc::TypeString() const {
return "compile_unit";
const char *CompileUnitDesc::getDescString() const {
return "llvm.dbg.compile_unit";
}
/// getTypeString - Return a string used to label this descriptors type.
///
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() {
std::cerr << TypeString() << " "
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Anchor(" << getAnchor() << "), "
<< "DebugVersion(" << DebugVersion << "), "
<< "Language(" << Language << "), "
<< "FileName(\"" << FileName << "\"), "
<< "Directory(\"" << Directory << "\"), "
@ -449,76 +545,122 @@ void CompileUnitDesc::dump() {
//===----------------------------------------------------------------------===//
/// ApplyToFields - Target the visitor to the fields of the GlobalVariableDesc.
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.
///
void GlobalVariableDesc::ApplyToFields(DIVisitor *Visitor) {
void GlobalDesc::ApplyToFields(DIVisitor *Visitor) {
AnchoredDesc::ApplyToFields(Visitor);
Visitor->Apply(Context);
Visitor->Apply(Name);
Visitor->Apply(TransUnit);
Visitor->Apply(TyDesc);
Visitor->Apply(IsStatic);
Visitor->Apply(IsDefinition);
}
//===----------------------------------------------------------------------===//
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);
Visitor->Apply(Global);
}
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
const char *GlobalVariableDesc::TypeString() const {
return "global_variable";
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() {
std::cerr << TypeString() << " "
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Name(\"" << Name << "\"), "
<< "Type(" << TyDesc << "), "
<< "IsStatic(" << (IsStatic ? "true" : "false") << "), "
<< "IsDefinition(" << (IsDefinition ? "true" : "false") << "), "
<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << "), "
<< "Global(" << Global << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
SubprogramDesc::SubprogramDesc()
: GlobalDesc(DI_TAG_subprogram)
{}
/// ApplyToFields - Target the visitor to the fields of the
/// SubprogramDesc.
void SubprogramDesc::ApplyToFields(DIVisitor *Visitor) {
Visitor->Apply(Context);
Visitor->Apply(Name);
Visitor->Apply(TransUnit);
Visitor->Apply(TyDesc);
Visitor->Apply(IsStatic);
Visitor->Apply(IsDefinition);
// FIXME - Temp variable until restructured.
GlobalVariable *Tmp;
Visitor->Apply(Tmp);
GlobalDesc::ApplyToFields(Visitor);
}
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
const char *SubprogramDesc::TypeString() const {
return "subprogram";
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";
}
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
const char *SubprogramDesc::getAnchorString() const {
return "llvm.dbg.subprograms";
}
#ifndef NDEBUG
void SubprogramDesc::dump() {
std::cerr << TypeString() << " "
std::cerr << getDescString() << " "
<< "Tag(" << getTag() << "), "
<< "Name(\"" << Name << "\"), "
<< "Type(" << TyDesc << "), "
<< "IsStatic(" << (IsStatic ? "true" : "false") << "), "
<< "IsDefinition(" << (IsDefinition ? "true" : "false") << ")\n";
<< "Anchor(" << getAnchor() << "), "
<< "Name(\"" << getName() << "\"), "
<< "IsStatic(" << (isStatic() ? "true" : "false") << "), "
<< "IsDefinition(" << (isDefinition() ? "true" : "false") << ")\n";
}
#endif
//===----------------------------------------------------------------------===//
DebugInfoDesc *DIDeserializer::Deserialize(Value *V) {
return Deserialize(cast<GlobalVariable>(V));
return Deserialize(getGlobalVariable(V));
}
DebugInfoDesc *DIDeserializer::Deserialize(GlobalVariable *GV) {
// Handle NULL.
if (!GV) return NULL;
// Check to see if it has been already deserialized.
DebugInfoDesc *&Slot = GlobalDescs[GV];
if (Slot) return Slot;
@ -579,25 +721,17 @@ const StructType *DISerializer::getTagType(DebugInfoDesc *DD) {
// If not already defined.
if (!Ty) {
// Get descriptor type name.
const char *TS = DD->TypeString();
// Set up fields vector.
std::vector<const Type*> Fields;
// Add tag field.
Fields.push_back(Type::UIntTy);
// Get types of remaining fields.
// Get types of fields.
DIGetTypesVisitor GTAM(*this, Fields);
GTAM.ApplyToFields(DD);
// Construct structured type.
Ty = StructType::get(Fields);
// Construct a name for the type.
const std::string Name = std::string("lldb.") + DD->TypeString() + ".type";
// Register type name with module.
M->addTypeName(Name, Ty);
M->addTypeName(DD->getTypeString(), Ty);
}
return Ty;
@ -605,17 +739,21 @@ const StructType *DISerializer::getTagType(DebugInfoDesc *DD) {
/// getString - Construct the string as constant string global.
///
GlobalVariable *DISerializer::getString(const std::string &String) {
Constant *DISerializer::getString(const std::string &String) {
// Check string cache for previous edition.
GlobalVariable *&Slot = StringCache[String];
// return GlobalVariable if previously defined.
Constant *&Slot = StringCache[String];
// return Constant if previously defined.
if (Slot) return Slot;
// Construct strings as an llvm constant.
// Construct string as an llvm constant.
Constant *ConstStr = ConstantArray::get(String);
// Otherwise create and return a new string global.
return Slot = new GlobalVariable(ConstStr->getType(), true,
GlobalVariable::InternalLinkage,
ConstStr, "str", M);
GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
GlobalVariable::InternalLinkage,
ConstStr, "str", M);
// Convert to generic string pointer.
Slot = ConstantExpr::getCast(StrGV, getStrPtrType());
return Slot;
}
/// Serialize - Recursively cast the specified descriptor into a GlobalVariable
@ -627,29 +765,19 @@ GlobalVariable *DISerializer::Serialize(DebugInfoDesc *DD) {
// See if DebugInfoDesc exists, if so return prior GlobalVariable.
if (Slot) return Slot;
// Get DebugInfoDesc type Tag.
unsigned Tag = DD->getTag();
// Construct name.
const std::string Name = std::string("lldb.") +
DD->TypeString();
// Get the type associated with the Tag.
const StructType *Ty = getTagType(DD);
// Create the GlobalVariable early to prevent infinite recursion.
GlobalVariable *GV = new GlobalVariable(Ty, true,
GlobalValue::InternalLinkage,
NULL, Name, M);
GlobalVariable *GV = new GlobalVariable(Ty, true, DD->getLinkage(),
NULL, DD->getDescString(), M);
// Insert new GlobalVariable in DescGlobals map.
Slot = GV;
// Set up elements vector
std::vector<Constant*> Elements;
// Add Tag value.
Elements.push_back(ConstantUInt::get(Type::UIntTy, Tag));
// Add remaining fields.
// Add fields.
DISerializeVisitor SRAM(*this, Elements);
SRAM.ApplyToFields(DD);
@ -678,6 +806,9 @@ bool DIVerifier::markVisited(GlobalVariable *GV) {
/// Verify - Return true if the GlobalVariable appears to be a valid
/// serialization of a DebugInfoDesc.
bool DIVerifier::Verify(Value *V) {
return Verify(getGlobalVariable(V));
}
bool DIVerifier::Verify(GlobalVariable *GV) {
// Check if seen before.
if (markVisited(GV)) return true;
@ -732,9 +863,7 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
MachineDebugInfo::MachineDebugInfo()
: SR()
, DR()
, VR()
: DR()
, CompileUnits()
, Directories()
, SourceFiles()
@ -758,22 +887,32 @@ bool MachineDebugInfo::doFinalization() {
return false;
}
/// Deserialize - Convert a Value to a debug information descriptor.
///
DebugInfoDesc *MachineDebugInfo::Deserialize(Value *V) {
return DR.Deserialize(V);
}
/// Verify - Verify that a Value is debug information descriptor.
///
bool MachineDebugInfo::Verify(Value *V) {
DIVerifier VR;
return VR.Verify(V);
}
/// AnalyzeModule - Scan the module for global debug information.
///
void MachineDebugInfo::AnalyzeModule(Module &M) {
SR.setModule(&M);
DR.setModule(&M);
SetupCompileUnits(M);
}
/// SetupCompileUnits - Set up the unique vector of compile units.
///
void MachineDebugInfo::SetupCompileUnits(Module &M) {
SR.setModule(&M);
DR.setModule(&M);
// Get vector of all debug compile units.
CompileUnitDesc CompileUnit;
std::vector<GlobalVariable*> Globals =
getGlobalVariablesUsing(M, "llvm.dbg.translation_units");
getGlobalVariablesUsing(M, CompileUnit.getAnchorString());
// Scan all compile unit globals.
for (unsigned i = 0, N = Globals.size(); i < N; ++i) {
@ -793,11 +932,10 @@ const UniqueVector<CompileUnitDesc *> MachineDebugInfo::getCompileUnits()const{
///
std::vector<GlobalVariableDesc *>
MachineDebugInfo::getGlobalVariables(Module &M) {
SR.setModule(&M);
DR.setModule(&M);
// Get vector of all debug global objects.
GlobalVariableDesc Global;
std::vector<GlobalVariable*> Globals =
getGlobalVariablesUsing(M, "llvm.dbg.globals");
getGlobalVariablesUsing(M, Global.getAnchorString());
// Accumulation of GlobalVariables.
std::vector<GlobalVariableDesc *> GlobalVariables;
@ -805,11 +943,9 @@ MachineDebugInfo::getGlobalVariables(Module &M) {
// Scan all globals.
for (unsigned i = 0, N = Globals.size(); i < N; ++i) {
GlobalVariable *GV = Globals[i];
if (DebugInfoDesc::TagFromGlobal(GV) == DI_TAG_global_variable) {
GlobalVariableDesc *GVD =
static_cast<GlobalVariableDesc *>(DR.Deserialize(GV));
GlobalVariables.push_back(GVD);
}
GlobalVariableDesc *GVD =
static_cast<GlobalVariableDesc *>(DR.Deserialize(GV));
GlobalVariables.push_back(GVD);
}
return GlobalVariables;