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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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228
include/llvm/CodeGen/MachineDebugInfo.h
View File

@ -32,6 +32,7 @@
#include "llvm/Support/Dwarf.h"
#include "llvm/ADT/UniqueVector.h"
#include "llvm/GlobalValue.h"
#include "llvm/Pass.h"
#include "llvm/User.h"
@ -42,6 +43,7 @@ namespace llvm {
//===----------------------------------------------------------------------===//
// Forward declarations.
class Constant;
class DebugInfoDesc;
class GlobalVariable;
class Module;
@ -57,12 +59,13 @@ enum {
// DebugInfoDesc type identifying tags.
// FIXME - Change over with gcc4.
DI_TAG_anchor = 0,
#if 1
DI_TAG_compile_unit = DW_TAG_compile_unit,
DI_TAG_global_variable = DW_TAG_variable,
DI_TAG_subprogram = DW_TAG_subprogram
#else
DI_TAG_compile_unit = 1,
DI_TAG_compile_unit,
DI_TAG_global_variable,
DI_TAG_subprogram
#endif
@ -117,6 +120,10 @@ public:
/// Return NULL if not a recognized Tag.
static DebugInfoDesc *DescFactory(unsigned Tag);
/// getLinkage - get linkage appropriate for this type of descriptor.
///
virtual GlobalValue::LinkageTypes getLinkage() const;
//===--------------------------------------------------------------------===//
// Subclasses should supply the following static methods.
@ -128,11 +135,15 @@ public:
/// ApplyToFields - Target the vistor to the fields of the descriptor.
///
virtual void ApplyToFields(DIVisitor *Visitor) = 0;
virtual void ApplyToFields(DIVisitor *Visitor);
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *TypeString() const = 0;
virtual const char *getDescString() const = 0;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const = 0;
#ifndef NDEBUG
virtual void dump() = 0;
@ -140,28 +151,91 @@ public:
};
//===----------------------------------------------------------------------===//
/// AnchorDesc - Descriptors of this class act as markers for identifying
/// descriptors of certain groups.
class AnchorDesc : public DebugInfoDesc {
private:
std::string Name; // Anchor type string.
public:
AnchorDesc()
: DebugInfoDesc(DI_TAG_anchor)
, Name("")
{}
AnchorDesc(const std::string &N)
: DebugInfoDesc(DI_TAG_anchor)
, Name(N)
{}
// Accessors
const std::string &getName() const { return Name; }
// Implement isa/cast/dyncast.
static bool classof(const AnchorDesc *) { return true; }
static bool classof(const DebugInfoDesc *D) {
return D->getTag() == DI_TAG_anchor;
}
/// getLinkage - get linkage appropriate for this type of descriptor.
///
virtual GlobalValue::LinkageTypes getLinkage() const;
/// ApplyToFields - Target the visitor to the fields of the AnchorDesc.
///
virtual void ApplyToFields(DIVisitor *Visitor);
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *getDescString() const;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const;
#ifndef NDEBUG
virtual void dump();
#endif
};
//===----------------------------------------------------------------------===//
/// AnchoredDesc - This class manages anchors for a variety of top level
/// descriptors.
class AnchoredDesc : public DebugInfoDesc {
private:
AnchorDesc *Anchor; // Anchor for all descriptors of the
// same type.
protected:
AnchoredDesc(unsigned T);
public:
// Accessors.
AnchorDesc *getAnchor() const { return Anchor; }
void setAnchor(AnchorDesc *A) { Anchor = A; }
//===--------------------------------------------------------------------===//
// Subclasses should supply the following virtual methods.
/// ApplyToFields - Target the visitor to the fields of the AnchoredDesc.
///
virtual void ApplyToFields(DIVisitor *Visitor);
};
//===----------------------------------------------------------------------===//
/// CompileUnitDesc - This class packages debug information associated with a
/// source/header file.
class CompileUnitDesc : public DebugInfoDesc {
class CompileUnitDesc : public AnchoredDesc {
private:
unsigned DebugVersion; // LLVM debug version when produced.
unsigned Language; // Language number (ex. DW_LANG_C89.)
std::string FileName; // Source file name.
std::string Directory; // Source file directory.
std::string Producer; // Compiler string.
GlobalVariable *TransUnit; // Translation unit - ignored.
public:
CompileUnitDesc()
: DebugInfoDesc(DI_TAG_compile_unit)
, DebugVersion(LLVMDebugVersion)
, Language(0)
, FileName("")
, Directory("")
, Producer("")
, TransUnit(NULL)
{}
CompileUnitDesc();
// Accessors
unsigned getDebugVersion() const { return DebugVersion; }
@ -173,6 +247,7 @@ public:
void setFileName(const std::string &FN) { FileName = FN; }
void setDirectory(const std::string &D) { Directory = D; }
void setProducer(const std::string &P) { Producer = P; }
// FIXME - Need translation unit getter/setter.
// Implement isa/cast/dyncast.
@ -189,9 +264,17 @@ public:
///
virtual void ApplyToFields(DIVisitor *Visitor);
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *TypeString() const;
virtual const char *getDescString() const;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const;
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
virtual const char *getAnchorString() const;
#ifndef NDEBUG
virtual void dump();
@ -199,42 +282,49 @@ public:
};
//===----------------------------------------------------------------------===//
/// GlobalVariableDesc - This class packages debug information associated with a
/// GlobalVariable.
class GlobalVariableDesc : public DebugInfoDesc {
/// GlobalDesc - This class is the base descriptor for global functions and
/// variables.
class GlobalDesc : public AnchoredDesc {
private:
DebugInfoDesc *Context; // Context debug descriptor.
std::string Name; // Global name.
GlobalVariable *TransUnit; // Translation unit - ignored.
// FIXME - Use a descriptor.
GlobalVariable *TyDesc; // Type debug descriptor.
bool IsStatic; // Is the global a static.
bool IsDefinition; // Is the global defined in context.
GlobalVariable *Global; // llvm global.
protected:
GlobalDesc(unsigned T);
public:
GlobalVariableDesc()
: DebugInfoDesc(DI_TAG_global_variable)
, Context(0)
, Name("")
, TransUnit(NULL)
, TyDesc(NULL)
, IsStatic(false)
, IsDefinition(false)
, Global(NULL)
{}
// Accessors
DebugInfoDesc *getContext() const { return Context; }
const std::string &getName() const { return Name; }
bool isStatic() const { return IsStatic; }
bool isDefinition() const { return IsDefinition; }
GlobalVariable *getGlobalVariable() const { return Global; }
void setContext(DebugInfoDesc *C) { Context = C; }
void setName(const std::string &N) { Name = N; }
void setIsStatic(bool IS) { IsStatic = IS; }
void setIsDefinition(bool ID) { IsDefinition = ID; }
/// ApplyToFields - Target the visitor to the fields of the GlobalDesc.
///
virtual void ApplyToFields(DIVisitor *Visitor);
};
//===----------------------------------------------------------------------===//
/// GlobalVariableDesc - This class packages debug information associated with a
/// GlobalVariable.
class GlobalVariableDesc : public GlobalDesc {
private:
GlobalVariable *Global; // llvm global.
public:
GlobalVariableDesc();
// Accessors.
GlobalVariable *getGlobalVariable() const { return Global; }
void setGlobalVariable(GlobalVariable *GV) { Global = GV; }
// FIXME - Other getters/setters.
// Implement isa/cast/dyncast.
static bool classof(const GlobalVariableDesc *) { return true; }
@ -246,10 +336,18 @@ public:
/// GlobalVariableDesc.
virtual void ApplyToFields(DIVisitor *Visitor);
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *TypeString() const;
virtual const char *getDescString() const;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const;
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
virtual const char *getAnchorString() const;
#ifndef NDEBUG
virtual void dump();
#endif
@ -258,32 +356,24 @@ public:
//===----------------------------------------------------------------------===//
/// SubprogramDesc - This class packages debug information associated with a
/// subprogram/function.
class SubprogramDesc : public DebugInfoDesc {
class SubprogramDesc : public GlobalDesc {
private:
DebugInfoDesc *Context; // Context debug descriptor.
std::string Name; // Subprogram name.
GlobalVariable *TransUnit; // Translation unit - ignored.
// FIXME - Use a descriptor.
GlobalVariable *TyDesc; // Type debug descriptor.
bool IsStatic; // Is the subprogram a static.
bool IsDefinition; // Is the subprogram defined in context.
public:
SubprogramDesc()
: DebugInfoDesc(DI_TAG_subprogram)
, Context(0)
, Name("")
, TransUnit(NULL)
, TyDesc(NULL)
, IsStatic(false)
, IsDefinition(false)
{}
SubprogramDesc();
// Accessors
DebugInfoDesc *getContext() const { return Context; }
const std::string &getName() const { return Name; }
bool isStatic() const { return IsStatic; }
bool isDefinition() const { return IsDefinition; }
void setContext(DebugInfoDesc *C) { Context = C; }
void setName(const std::string &N) { Name = N; }
void setIsStatic(bool IS) { IsStatic = IS; }
void setIsDefinition(bool ID) { IsDefinition = ID; }
@ -299,10 +389,18 @@ public:
///
virtual void ApplyToFields(DIVisitor *Visitor);
/// TypeString - Return a string used to compose globalnames and labels.
/// getDescString - Return a string used to compose global names and labels.
///
virtual const char *TypeString() const;
virtual const char *getDescString() const;
/// getTypeString - Return a string used to label this descriptor's type.
///
virtual const char *getTypeString() const;
/// getAnchorString - Return a string used to label this descriptor's anchor.
///
virtual const char *getAnchorString() const;
#ifndef NDEBUG
virtual void dump();
#endif
@ -313,18 +411,15 @@ public:
/// into DebugInfoDesc objects.
class DIDeserializer {
private:
Module *M; // Definition space module.
unsigned DebugVersion; // Version of debug information in use.
std::map<GlobalVariable *, DebugInfoDesc *> GlobalDescs;
// Previously defined gloabls.
public:
DIDeserializer() : M(NULL), DebugVersion(LLVMDebugVersion) {}
DIDeserializer() : DebugVersion(LLVMDebugVersion) {}
~DIDeserializer() {}
// Accessors
Module *getModule() const { return M; };
void setModule(Module *module) { M = module; }
unsigned getDebugVersion() const { return DebugVersion; }
/// Deserialize - Reconstitute a GlobalVariable into it's component
@ -345,10 +440,18 @@ private:
// Types per Tag. Created lazily.
std::map<DebugInfoDesc *, GlobalVariable *> DescGlobals;
// Previously defined descriptors.
std::map<const std::string, GlobalVariable*> StringCache;
std::map<const std::string, Constant *> StringCache;
// Previously defined strings.
public:
DISerializer() : M(NULL) {}
DISerializer()
: M(NULL)
, StrPtrTy(NULL)
, EmptyStructPtrTy(NULL)
, TagTypes()
, DescGlobals()
, StringCache()
{}
~DISerializer() {}
// Accessors
@ -369,7 +472,7 @@ public:
/// getString - Construct the string as constant string global.
///
GlobalVariable *getString(const std::string &String);
Constant *getString(const std::string &String);
/// Serialize - Recursively cast the specified descriptor into a
/// GlobalVariable so that it can be serialized to a .bc or .ll file.
@ -395,6 +498,7 @@ public:
/// Verify - Return true if the GlobalVariable appears to be a valid
/// serialization of a DebugInfoDesc.
bool Verify(Value *V);
bool Verify(GlobalVariable *GV);
};
@ -454,9 +558,7 @@ public:
class MachineDebugInfo : public ImmutablePass {
private:
// Use the same serializer/deserializer/verifier for the module.
DISerializer SR;
DIDeserializer DR;
DIVerifier VR;
// CompileUnits - Uniquing vector for compile units.
UniqueVector<CompileUnitDesc *> CompileUnits;
@ -482,6 +584,14 @@ public:
///
bool doFinalization();
/// Deserialize - Convert a Value to a debug information descriptor.
///
DebugInfoDesc *Deserialize(Value *V);
/// Verify - Verify that a Value is debug information descriptor.
///
bool Verify(Value *V);
/// AnalyzeModule - Scan the module for global debug information.
///
void AnalyzeModule(Module &M);

356
lib/CodeGen/MachineDebugInfo.cpp
View File

@ -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;

43
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -941,33 +941,30 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
if (TLI.getTargetMachine().getIntrinsicLowering().EmitDebugFunctions())
return "llvm_debugger_stop";
std::string fname = "<unknown>";
std::vector<SDOperand> Ops;
MachineDebugInfo *DebugInfo = DAG.getMachineDebugInfo();
if (DebugInfo && DebugInfo->Verify(I.getOperand(4))) {
std::vector<SDOperand> Ops;
// Input Chain
Ops.push_back(getRoot());
// line number
Ops.push_back(getValue(I.getOperand(2)));
// column
Ops.push_back(getValue(I.getOperand(3)));
// Input Chain
Ops.push_back(getRoot());
// line number
Ops.push_back(getValue(I.getOperand(2)));
// column
Ops.push_back(getValue(I.getOperand(3)));
// filename/working dir
// Pull the filename out of the the compilation unit.
const GlobalVariable *cunit = dyn_cast<GlobalVariable>(I.getOperand(4));
if (cunit && cunit->hasInitializer()) {
if (ConstantStruct *CS =
dyn_cast<ConstantStruct>(cunit->getInitializer())) {
if (CS->getNumOperands() > 0) {
Ops.push_back(DAG.getString(getStringValue(CS->getOperand(3))));
Ops.push_back(DAG.getString(getStringValue(CS->getOperand(4))));
}
}
DebugInfoDesc *DD = DebugInfo->Deserialize(I.getOperand(4));
assert(DD && "Not a debug information descriptor");
CompileUnitDesc *CompileUnit = dyn_cast<CompileUnitDesc>(DD);
assert(CompileUnit && "Not a compile unit");
Ops.push_back(DAG.getString(CompileUnit->getFileName()));
Ops.push_back(DAG.getString(CompileUnit->getDirectory()));
if (Ops.size() == 5) // Found filename/workingdir.
DAG.setRoot(DAG.getNode(ISD::LOCATION, MVT::Other, Ops));
}
if (Ops.size() == 5) // Found filename/workingdir.
DAG.setRoot(DAG.getNode(ISD::LOCATION, MVT::Other, Ops));
setValue(&I, DAG.getNode(ISD::UNDEF, TLI.getValueType(I.getType())));
return 0;
}