class LLVMContext;
class raw_ostream;
+ class DIFile;
+ class DISubprogram;
+ class DILexicalBlock;
+ class DIVariable;
+ class DIType;
+
/// DIDescriptor - A thin wraper around MDNode to access encoded debug info.
/// This should not be stored in a container, because underly MDNode may
/// change in certain situations.
class DIDescriptor {
+ public:
+ enum {
+ FlagPrivate = 1 << 0,
+ FlagProtected = 1 << 1,
+ FlagFwdDecl = 1 << 2,
+ FlagAppleBlock = 1 << 3,
+ FlagBlockByrefStruct = 1 << 4,
+ FlagVirtual = 1 << 5,
+ FlagArtificial = 1 << 6,
+ FlagExplicit = 1 << 7,
+ FlagPrototyped = 1 << 8
+ };
protected:
- MDNode *DbgNode;
+ const MDNode *DbgNode;
StringRef getStringField(unsigned Elt) const;
unsigned getUnsignedField(unsigned Elt) const {
template <typename DescTy>
DescTy getFieldAs(unsigned Elt) const {
- return DescTy(getDescriptorField(Elt).getNode());
+ return DescTy(getDescriptorField(Elt));
}
GlobalVariable *getGlobalVariableField(unsigned Elt) const;
+ Constant *getConstantField(unsigned Elt) const;
+ Function *getFunctionField(unsigned Elt) const;
public:
explicit DIDescriptor() : DbgNode(0) {}
- explicit DIDescriptor(MDNode *N) : DbgNode(N) {}
+ explicit DIDescriptor(const MDNode *N) : DbgNode(N) {}
+ explicit DIDescriptor(const DIFile F);
+ explicit DIDescriptor(const DISubprogram F);
+ explicit DIDescriptor(const DILexicalBlock F);
+ explicit DIDescriptor(const DIVariable F);
+ explicit DIDescriptor(const DIType F);
bool Verify() const { return DbgNode != 0; }
- MDNode *getNode() const { return DbgNode; }
- operator MDNode *() const { return DbgNode; }
- MDNode *operator ->() const { return DbgNode; }
+ operator MDNode *() const { return const_cast<MDNode*>(DbgNode); }
+ MDNode *operator ->() const { return const_cast<MDNode*>(DbgNode); }
unsigned getVersion() const {
return getUnsignedField(0) & LLVMDebugVersionMask;
return getUnsignedField(0) & ~LLVMDebugVersionMask;
}
- /// ValidDebugInfo - Return true if N represents valid debug info value.
- static bool ValidDebugInfo(MDNode *N, unsigned OptLevel);
-
/// print - print descriptor.
void print(raw_ostream &OS) const;
bool isEnumerator() const;
bool isType() const;
bool isGlobal() const;
+ bool isUnspecifiedParameter() const;
};
/// DISubrange - This is used to represent ranges, for array bounds.
class DISubrange : public DIDescriptor {
public:
- explicit DISubrange(MDNode *N = 0) : DIDescriptor(N) {}
+ explicit DISubrange(const MDNode *N = 0) : DIDescriptor(N) {}
int64_t getLo() const { return (int64_t)getUInt64Field(1); }
int64_t getHi() const { return (int64_t)getUInt64Field(2); }
/// DIArray - This descriptor holds an array of descriptors.
class DIArray : public DIDescriptor {
public:
- explicit DIArray(MDNode *N = 0)
+ explicit DIArray(const MDNode *N = 0)
: DIDescriptor(N) {}
unsigned getNumElements() const;
/// DIScope - A base class for various scopes.
class DIScope : public DIDescriptor {
public:
- explicit DIScope(MDNode *N = 0) : DIDescriptor (N) {}
+ explicit DIScope(const MDNode *N = 0) : DIDescriptor (N) {}
virtual ~DIScope() {}
StringRef getFilename() const;
/// DICompileUnit - A wrapper for a compile unit.
class DICompileUnit : public DIScope {
public:
- explicit DICompileUnit(MDNode *N = 0) : DIScope(N) {}
+ explicit DICompileUnit(const MDNode *N = 0) : DIScope(N) {}
- unsigned getLanguage() const { return getUnsignedField(2); }
+ unsigned getLanguage() const { return getUnsignedField(2); }
StringRef getFilename() const { return getStringField(3); }
StringRef getDirectory() const { return getStringField(4); }
StringRef getProducer() const { return getStringField(5); }
/// module does not contain any main compile unit then the code generator
/// will emit multiple compile units in the output object file.
- bool isMain() const { return getUnsignedField(6); }
- bool isOptimized() const { return getUnsignedField(7); }
+ bool isMain() const { return getUnsignedField(6) != 0; }
+ bool isOptimized() const { return getUnsignedField(7) != 0; }
StringRef getFlags() const { return getStringField(8); }
unsigned getRunTimeVersion() const { return getUnsignedField(9); }
/// DIFile - This is a wrapper for a file.
class DIFile : public DIScope {
public:
- explicit DIFile(MDNode *N = 0) : DIScope(N) {
+ explicit DIFile(const MDNode *N = 0) : DIScope(N) {
if (DbgNode && !isFile())
DbgNode = 0;
}
/// type/precision or a file/line pair for location info.
class DIEnumerator : public DIDescriptor {
public:
- explicit DIEnumerator(MDNode *N = 0) : DIDescriptor(N) {}
+ explicit DIEnumerator(const MDNode *N = 0) : DIDescriptor(N) {}
StringRef getName() const { return getStringField(1); }
uint64_t getEnumValue() const { return getUInt64Field(2); }
/// others do not require a huge and empty descriptor full of zeros.
class DIType : public DIScope {
public:
- enum {
- FlagPrivate = 1 << 0,
- FlagProtected = 1 << 1,
- FlagFwdDecl = 1 << 2,
- FlagAppleBlock = 1 << 3,
- FlagBlockByrefStruct = 1 << 4,
- FlagVirtual = 1 << 5,
- FlagArtificial = 1 << 6 // To identify artificial arguments in
- // a subroutine type. e.g. "this" in c++.
- };
-
protected:
// This ctor is used when the Tag has already been validated by a derived
// ctor.
- DIType(MDNode *N, bool, bool) : DIScope(N) {}
+ DIType(const MDNode *N, bool, bool) : DIScope(N) {}
public:
/// Verify - Verify that a type descriptor is well formed.
bool Verify() const;
public:
- explicit DIType(MDNode *N);
+ explicit DIType(const MDNode *N);
explicit DIType() {}
virtual ~DIType() {}
DIScope getContext() const { return getFieldAs<DIScope>(1); }
StringRef getName() const { return getStringField(2); }
DICompileUnit getCompileUnit() const{
- if (getVersion() == llvm::LLVMDebugVersion7)
- return getFieldAs<DICompileUnit>(3);
-
- DIFile F = getFieldAs<DIFile>(3);
- return F.getCompileUnit();
+ if (getVersion() == llvm::LLVMDebugVersion7)
+ return getFieldAs<DICompileUnit>(3);
+
+ return getFieldAs<DIFile>(3).getCompileUnit();
}
unsigned getLineNumber() const { return getUnsignedField(4); }
uint64_t getSizeInBits() const { return getUInt64Field(5); }
bool isValid() const {
return DbgNode && (isBasicType() || isDerivedType() || isCompositeType());
}
- StringRef getFilename() const { return getCompileUnit().getFilename();}
- StringRef getDirectory() const { return getCompileUnit().getDirectory();}
+ StringRef getDirectory() const {
+ if (getVersion() == llvm::LLVMDebugVersion7)
+ return getCompileUnit().getDirectory();
+
+ return getFieldAs<DIFile>(3).getDirectory();
+ }
+ StringRef getFilename() const {
+ if (getVersion() == llvm::LLVMDebugVersion7)
+ return getCompileUnit().getFilename();
+
+ return getFieldAs<DIFile>(3).getFilename();
+ }
+
+ /// replaceAllUsesWith - Replace all uses of debug info referenced by
+ /// this descriptor.
+ void replaceAllUsesWith(DIDescriptor &D);
/// print - print type.
void print(raw_ostream &OS) const;
/// DIBasicType - A basic type, like 'int' or 'float'.
class DIBasicType : public DIType {
public:
- explicit DIBasicType(MDNode *N = 0) : DIType(N) {}
+ explicit DIBasicType(const MDNode *N = 0) : DIType(N) {}
unsigned getEncoding() const { return getUnsignedField(9); }
+ /// Verify - Verify that a basic type descriptor is well formed.
+ bool Verify() const;
+
/// print - print basic type.
void print(raw_ostream &OS) const;
/// a typedef, a pointer or reference, etc.
class DIDerivedType : public DIType {
protected:
- explicit DIDerivedType(MDNode *N, bool, bool)
+ explicit DIDerivedType(const MDNode *N, bool, bool)
: DIType(N, true, true) {}
public:
- explicit DIDerivedType(MDNode *N = 0)
+ explicit DIDerivedType(const MDNode *N = 0)
: DIType(N, true, true) {}
DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
/// return base type size.
uint64_t getOriginalTypeSize() const;
+ /// Verify - Verify that a derived type descriptor is well formed.
+ bool Verify() const;
+
/// print - print derived type.
void print(raw_ostream &OS) const;
/// dump - print derived type to dbgs() with a newline.
void dump() const;
-
- /// replaceAllUsesWith - Replace all uses of debug info referenced by
- /// this descriptor. After this completes, the current debug info value
- /// is erased.
- void replaceAllUsesWith(DIDescriptor &D);
};
/// DICompositeType - This descriptor holds a type that can refer to multiple
/// FIXME: Why is this a DIDerivedType??
class DICompositeType : public DIDerivedType {
public:
- explicit DICompositeType(MDNode *N = 0)
+ explicit DICompositeType(const MDNode *N = 0)
: DIDerivedType(N, true, true) {
if (N && !isCompositeType())
DbgNode = 0;
void dump() const;
};
- /// DIGlobal - This is a common class for global variables and subprograms.
- class DIGlobal : public DIDescriptor {
- protected:
- explicit DIGlobal(MDNode *N) : DIDescriptor(N) {}
-
- public:
- virtual ~DIGlobal() {}
-
- DIScope getContext() const { return getFieldAs<DIScope>(2); }
- StringRef getName() const { return getStringField(3); }
- StringRef getDisplayName() const { return getStringField(4); }
- StringRef getLinkageName() const { return getStringField(5); }
- DICompileUnit getCompileUnit() const{
- if (getVersion() == llvm::LLVMDebugVersion7)
- return getFieldAs<DICompileUnit>(6);
-
- DIFile F = getFieldAs<DIFile>(6);
- return F.getCompileUnit();
- }
-
- unsigned getLineNumber() const { return getUnsignedField(7); }
- DIType getType() const { return getFieldAs<DIType>(8); }
-
- /// isLocalToUnit - Return true if this subprogram is local to the current
- /// compile unit, like 'static' in C.
- unsigned isLocalToUnit() const { return getUnsignedField(9); }
- unsigned isDefinition() const { return getUnsignedField(10); }
-
- /// print - print global.
- void print(raw_ostream &OS) const;
-
- /// dump - print global to dbgs() with a newline.
- void dump() const;
- };
-
/// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
class DISubprogram : public DIScope {
public:
- explicit DISubprogram(MDNode *N = 0) : DIScope(N) {}
+ explicit DISubprogram(const MDNode *N = 0) : DIScope(N) {}
DIScope getContext() const { return getFieldAs<DIScope>(2); }
StringRef getName() const { return getStringField(3); }
if (getVersion() == llvm::LLVMDebugVersion7)
return getFieldAs<DICompileUnit>(6);
- DIFile F = getFieldAs<DIFile>(6);
- return F.getCompileUnit();
+ return getFieldAs<DIFile>(6).getCompileUnit();
}
unsigned getLineNumber() const { return getUnsignedField(7); }
DICompositeType getType() const { return getFieldAs<DICompositeType>(8); }
DICompositeType getContainingType() const {
return getFieldAs<DICompositeType>(13);
}
- unsigned isArtificial() const { return getUnsignedField(14); }
+ unsigned isArtificial() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return getUnsignedField(14);
+ return (getUnsignedField(14) & FlagArtificial) != 0;
+ }
+ /// isPrivate - Return true if this subprogram has "private"
+ /// access specifier.
+ bool isPrivate() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return false;
+ return (getUnsignedField(14) & FlagPrivate) != 0;
+ }
+ /// isProtected - Return true if this subprogram has "protected"
+ /// access specifier.
+ bool isProtected() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return false;
+ return (getUnsignedField(14) & FlagProtected) != 0;
+ }
+ /// isExplicit - Return true if this subprogram is marked as explicit.
+ bool isExplicit() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return false;
+ return (getUnsignedField(14) & FlagExplicit) != 0;
+ }
+ /// isPrototyped - Return true if this subprogram is prototyped.
+ bool isPrototyped() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return false;
+ return (getUnsignedField(14) & FlagPrototyped) != 0;
+ }
+
unsigned isOptimized() const;
StringRef getFilename() const {
if (getVersion() == llvm::LLVMDebugVersion7)
return getCompileUnit().getFilename();
- DIFile F = getFieldAs<DIFile>(6);
- return F.getFilename();
+ return getFieldAs<DIFile>(6).getFilename();
}
StringRef getDirectory() const {
if (getVersion() == llvm::LLVMDebugVersion7)
return getCompileUnit().getFilename();
- DIFile F = getFieldAs<DIFile>(6);
- return F.getDirectory();
+ return getFieldAs<DIFile>(6).getDirectory();
}
/// Verify - Verify that a subprogram descriptor is well formed.
/// describes - Return true if this subprogram provides debugging
/// information for the function F.
bool describes(const Function *F);
+
+ Function *getFunction() const { return getFunctionField(16); }
};
/// DIGlobalVariable - This is a wrapper for a global variable.
- class DIGlobalVariable : public DIGlobal {
+ class DIGlobalVariable : public DIDescriptor {
public:
- explicit DIGlobalVariable(MDNode *N = 0) : DIGlobal(N) {}
+ explicit DIGlobalVariable(const MDNode *N = 0) : DIDescriptor(N) {}
+
+ DIScope getContext() const { return getFieldAs<DIScope>(2); }
+ StringRef getName() const { return getStringField(3); }
+ StringRef getDisplayName() const { return getStringField(4); }
+ StringRef getLinkageName() const { return getStringField(5); }
+ DICompileUnit getCompileUnit() const{
+ if (getVersion() == llvm::LLVMDebugVersion7)
+ return getFieldAs<DICompileUnit>(6);
+
+ DIFile F = getFieldAs<DIFile>(6);
+ return F.getCompileUnit();
+ }
+
+ unsigned getLineNumber() const { return getUnsignedField(7); }
+ DIType getType() const { return getFieldAs<DIType>(8); }
+ unsigned isLocalToUnit() const { return getUnsignedField(9); }
+ unsigned isDefinition() const { return getUnsignedField(10); }
GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
+ Constant *getConstant() const { return getConstantField(11); }
/// Verify - Verify that a global variable descriptor is well formed.
bool Verify() const;
/// global etc).
class DIVariable : public DIDescriptor {
public:
- explicit DIVariable(MDNode *N = 0)
+ explicit DIVariable(const MDNode *N = 0)
: DIDescriptor(N) {}
DIScope getContext() const { return getFieldAs<DIScope>(1); }
}
unsigned getLineNumber() const { return getUnsignedField(4); }
DIType getType() const { return getFieldAs<DIType>(5); }
+
+ /// isArtificial - Return true if this variable is marked as "artificial".
+ bool isArtificial() const {
+ if (getVersion() <= llvm::LLVMDebugVersion8)
+ return false;
+ return (getUnsignedField(6) & FlagArtificial) != 0;
+ }
/// Verify - Verify that a variable descriptor is well formed.
/// DILexicalBlock - This is a wrapper for a lexical block.
class DILexicalBlock : public DIScope {
public:
- explicit DILexicalBlock(MDNode *N = 0) : DIScope(N) {}
+ explicit DILexicalBlock(const MDNode *N = 0) : DIScope(N) {}
DIScope getContext() const { return getFieldAs<DIScope>(1); }
- StringRef getDirectory() const { return getContext().getDirectory(); }
- StringRef getFilename() const { return getContext().getFilename(); }
unsigned getLineNumber() const { return getUnsignedField(2); }
unsigned getColumnNumber() const { return getUnsignedField(3); }
+ StringRef getDirectory() const {
+ StringRef dir = getFieldAs<DIFile>(4).getDirectory();
+ return !dir.empty() ? dir : getContext().getDirectory();
+ }
+ StringRef getFilename() const {
+ StringRef filename = getFieldAs<DIFile>(4).getFilename();
+ return !filename.empty() ? filename : getContext().getFilename();
+ }
};
/// DINameSpace - A wrapper for a C++ style name space.
class DINameSpace : public DIScope {
public:
- explicit DINameSpace(MDNode *N = 0) : DIScope(N) {}
+ explicit DINameSpace(const MDNode *N = 0) : DIScope(N) {}
DIScope getContext() const { return getFieldAs<DIScope>(1); }
StringRef getName() const { return getStringField(2); }
- StringRef getDirectory() const { return getContext().getDirectory(); }
- StringRef getFilename() const { return getContext().getFilename(); }
+ StringRef getDirectory() const {
+ return getFieldAs<DIFile>(3).getDirectory();
+ }
+ StringRef getFilename() const {
+ return getFieldAs<DIFile>(3).getFilename();
+ }
DICompileUnit getCompileUnit() const{
if (getVersion() == llvm::LLVMDebugVersion7)
return getFieldAs<DICompileUnit>(3);
- DIFile F = getFieldAs<DIFile>(3);
- return F.getCompileUnit();
+ return getFieldAs<DIFile>(3).getCompileUnit();
}
unsigned getLineNumber() const { return getUnsignedField(4); }
+ bool Verify() const;
};
/// DILocation - This object holds location information. This object
/// is not associated with any DWARF tag.
class DILocation : public DIDescriptor {
public:
- explicit DILocation(MDNode *N) : DIDescriptor(N) { }
+ explicit DILocation(const MDNode *N) : DIDescriptor(N) { }
unsigned getLineNumber() const { return getUnsignedField(0); }
unsigned getColumnNumber() const { return getUnsignedField(1); }
/// implicitly uniques the values returned.
DISubrange GetOrCreateSubrange(int64_t Lo, int64_t Hi);
+ /// CreateUnspecifiedParameter - Create unspeicified type descriptor
+ /// for a subroutine type.
+ DIDescriptor CreateUnspecifiedParameter();
+
/// CreateCompileUnit - Create a new descriptor for the specified compile
/// unit.
DICompileUnit CreateCompileUnit(unsigned LangID,
unsigned RunTimeVer = 0);
/// CreateFile - Create a new descriptor for the specified file.
- DIFile CreateFile(StringRef Filename, StringRef Directory, DICompileUnit CU);
+ DIFile CreateFile(StringRef Filename, StringRef Directory,
+ DICompileUnit CU);
/// CreateEnumerator - Create a single enumerator value.
DIEnumerator CreateEnumerator(StringRef Name, uint64_t Val);
unsigned RunTimeLang = 0,
MDNode *ContainingType = 0);
+ /// CreateTemporaryType - Create a temporary forward-declared type.
+ DIType CreateTemporaryType();
+
/// CreateArtificialType - Create a new DIType with "artificial" flag set.
DIType CreateArtificialType(DIType Ty);
unsigned Flags,
DIType DerivedFrom,
DIArray Elements,
- unsigned RunTimeLang = 0);
+ unsigned RunTimeLang = 0,
+ MDNode *ContainingType = 0);
/// CreateSubprogram - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields.
bool isDefinition,
unsigned VK = 0,
unsigned VIndex = 0,
- DIType = DIType(),
- bool isArtificial = 0,
- bool isOptimized = false);
+ DIType ContainingType = DIType(),
+ unsigned Flags = 0,
+ bool isOptimized = false,
+ Function *Fn = 0);
/// CreateSubprogramDefinition - Create new subprogram descriptor for the
/// given declaration.
unsigned LineNo, DIType Ty, bool isLocalToUnit,
bool isDefinition, llvm::GlobalVariable *GV);
+ /// CreateGlobalVariable - Create a new descriptor for the specified constant.
+ DIGlobalVariable
+ CreateGlobalVariable(DIDescriptor Context, StringRef Name,
+ StringRef DisplayName,
+ StringRef LinkageName,
+ DIFile F,
+ unsigned LineNo, DIType Ty, bool isLocalToUnit,
+ bool isDefinition, llvm::Constant *C);
+
/// CreateVariable - Create a new descriptor for the specified variable.
DIVariable CreateVariable(unsigned Tag, DIDescriptor Context,
StringRef Name,
DIFile F, unsigned LineNo,
- DIType Ty);
+ DIType Ty, bool AlwaysPreserve = false,
+ unsigned Flags = 0);
/// CreateComplexVariable - Create a new descriptor for the specified
/// variable which has a complex address expression for its address.
DIVariable CreateComplexVariable(unsigned Tag, DIDescriptor Context,
- const std::string &Name,
- DIFile F, unsigned LineNo,
- DIType Ty,
- SmallVector<Value *, 9> &addr);
+ StringRef Name, DIFile F, unsigned LineNo,
+ DIType Ty, Value *const *Addr,
+ unsigned NumAddr);
/// CreateLexicalBlock - This creates a descriptor for a lexical block
/// with the specified parent context.
- DILexicalBlock CreateLexicalBlock(DIDescriptor Context, unsigned Line = 0,
- unsigned Col = 0);
+ DILexicalBlock CreateLexicalBlock(DIDescriptor Context, DIFile F,
+ unsigned Line = 0, unsigned Col = 0);
/// CreateNameSpace - This creates new descriptor for a namespace
/// with the specified parent context.
/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
Instruction *InsertDbgValueIntrinsic(llvm::Value *V, uint64_t Offset,
DIVariable D, Instruction *InsertBefore);
+
+ // RecordType - Record DIType in a module such that it is not lost even if
+ // it is not referenced through debug info anchors.
+ void RecordType(DIType T);
+
private:
Constant *GetTagConstant(unsigned TAG);
};
std::string &Dir);
/// getDISubprogram - Find subprogram that is enclosing this scope.
- DISubprogram getDISubprogram(MDNode *Scope);
+ DISubprogram getDISubprogram(const MDNode *Scope);
/// getDICompositeType - Find underlying composite type.
DICompositeType getDICompositeType(DIType T);
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