//===----------------------------------------------------------------------===//
//
// This file defines a bunch of datatypes that are useful for creating and
-// walking debug info in LLVM IR form.
+// walking debug info in LLVM IR form. They essentially provide wrappers around
+// the information in the global variables that's needed when constructing the
+// DWARF information.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_DEBUGINFO_H
#define LLVM_ANALYSIS_DEBUGINFO_H
+#include "llvm/Metadata.h"
+#include "llvm/Target/TargetMachine.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Support/Dwarf.h"
namespace llvm {
class Value;
struct DbgStopPointInst;
struct DbgDeclareInst;
+ struct DbgFuncStartInst;
+ struct DbgRegionStartInst;
+ struct DbgRegionEndInst;
+ class DebugLoc;
+ struct DebugLocTracker;
class Instruction;
+ class LLVMContext;
class DIDescriptor {
protected:
- GlobalVariable *GV;
+ MDNode *DbgNode;
- /// DIDescriptor constructor. If the specified GV is non-null, this checks
+ /// DIDescriptor constructor. If the specified node is non-null, check
/// to make sure that the tag in the descriptor matches 'RequiredTag'. If
/// not, the debug info is corrupt and we ignore it.
- DIDescriptor(GlobalVariable *GV, unsigned RequiredTag);
+ DIDescriptor(MDNode *N, unsigned RequiredTag);
- std::string getStringField(unsigned Elt) const;
+ const std::string &getStringField(unsigned Elt, std::string &Result) const;
unsigned getUnsignedField(unsigned Elt) const {
return (unsigned)getUInt64Field(Elt);
}
template <typename DescTy>
DescTy getFieldAs(unsigned Elt) const {
- return DescTy(getDescriptorField(Elt).getGV());
+ return DescTy(getDescriptorField(Elt).getNode());
}
GlobalVariable *getGlobalVariableField(unsigned Elt) const;
public:
- explicit DIDescriptor() : GV(0) {}
- explicit DIDescriptor(GlobalVariable *gv) : GV(gv) {}
+ explicit DIDescriptor() : DbgNode(0) {}
+ explicit DIDescriptor(MDNode *N) : DbgNode(N) {}
- bool isNull() const { return GV == 0; }
+ bool isNull() const { return DbgNode == 0; }
- GlobalVariable *getGV() const { return GV; }
+ MDNode *getNode() const { return 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, CodeGenOpt::Level OptLevel);
- /// DIAnchor - A wrapper for various anchor descriptors.
- class DIAnchor : public DIDescriptor {
- public:
- explicit DIAnchor(GlobalVariable *GV = 0);
+ /// dump - print descriptor.
+ void dump() const;
- unsigned getAnchorTag() const { return getUnsignedField(1); }
+ bool isDerivedType() const;
+ bool isCompositeType() const;
+ bool isBasicType() const;
+ bool isVariable() const;
+ bool isSubprogram() const;
+ bool isGlobalVariable() const;
+ bool isScope() const;
+ bool isCompileUnit() const;
+ bool isLexicalBlock() const;
};
/// DISubrange - This is used to represent ranges, for array bounds.
class DISubrange : public DIDescriptor {
public:
- explicit DISubrange(GlobalVariable *GV = 0);
+ explicit DISubrange(MDNode *N = 0)
+ : DIDescriptor(N, dwarf::DW_TAG_subrange_type) {}
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(GlobalVariable *GV = 0) : DIDescriptor(GV) {}
+ explicit DIArray(MDNode *N = 0)
+ : DIDescriptor(N) {}
unsigned getNumElements() const;
DIDescriptor getElement(unsigned Idx) const {
}
};
+ /// DIScope - A base class for various scopes.
+ class DIScope : public DIDescriptor {
+ public:
+ explicit DIScope(MDNode *N = 0) : DIDescriptor (N) {
+ if (DbgNode && !isScope())
+ DbgNode = 0;
+ }
+
+ virtual const std::string &getFilename(std::string &F) const {
+ return F;
+ }
+
+ virtual const std::string &getDirectory(std::string &D) const {
+ return D;
+ }
+ };
+
/// DICompileUnit - A wrapper for a compile unit.
- class DICompileUnit : public DIDescriptor {
+ class DICompileUnit : public DIScope {
public:
- explicit DICompileUnit(GlobalVariable *GV = 0);
+ explicit DICompileUnit(MDNode *N = 0) {
+ DbgNode = N;
+ if (DbgNode && !isCompileUnit())
+ DbgNode = 0;
+ }
unsigned getLanguage() const { return getUnsignedField(2); }
- std::string getFilename() const { return getStringField(3); }
- std::string getDirectory() const { return getStringField(4); }
- std::string getProducer() const { return getStringField(5); }
+ const std::string &getFilename(std::string &F) const {
+ return getStringField(3, F);
+ }
+ const std::string &getDirectory(std::string &F) const {
+ return getStringField(4, F);
+ }
+ const std::string &getProducer(std::string &F) const {
+ return getStringField(5, F);
+ }
/// isMain - Each input file is encoded as a separate compile unit in LLVM
/// debugging information output. However, many target specific tool chains
/// code generator accepts maximum one main compile unit per module. If a
/// 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); }
- std::string getFlags() const { return getStringField(8); }
+
+ bool isMain() const { return getUnsignedField(6); }
+ bool isOptimized() const { return getUnsignedField(7); }
+ const std::string &getFlags(std::string &F) const {
+ return getStringField(8, F);
+ }
+ unsigned getRunTimeVersion() const { return getUnsignedField(9); }
/// Verify - Verify that a compile unit is well formed.
bool Verify() const;
/// type/precision or a file/line pair for location info.
class DIEnumerator : public DIDescriptor {
public:
- explicit DIEnumerator(GlobalVariable *GV = 0);
+ explicit DIEnumerator(MDNode *N = 0)
+ : DIDescriptor(N, dwarf::DW_TAG_enumerator) {}
- std::string getName() const { return getStringField(1); }
+ const std::string &getName(std::string &F) const {
+ return getStringField(1, F);
+ }
uint64_t getEnumValue() const { return getUInt64Field(2); }
};
class DIType : public DIDescriptor {
public:
enum {
- FlagPrivate = 1 << 0,
- FlagProtected = 1 << 1,
- FlagFwdDecl = 1 << 2
+ FlagPrivate = 1 << 0,
+ FlagProtected = 1 << 1,
+ FlagFwdDecl = 1 << 2,
+ FlagAppleBlock = 1 << 3,
+ FlagBlockByrefStruct = 1 << 4
};
protected:
- DIType(GlobalVariable *GV, unsigned Tag) : DIDescriptor(GV, Tag) {}
+ DIType(MDNode *N, unsigned Tag)
+ : DIDescriptor(N, Tag) {}
// This ctor is used when the Tag has already been validated by a derived
// ctor.
- DIType(GlobalVariable *GV, bool, bool) : DIDescriptor(GV) {}
+ DIType(MDNode *N, bool, bool) : DIDescriptor(N) {}
public:
- /// isDerivedType - Return true if the specified tag is legal for
- /// DIDerivedType.
- static bool isDerivedType(unsigned TAG);
-
- /// isCompositeType - Return true if the specified tag is legal for
- /// DICompositeType.
- static bool isCompositeType(unsigned TAG);
-
- /// isBasicType - Return true if the specified tag is legal for
- /// DIBasicType.
- static bool isBasicType(unsigned TAG) {
- return TAG == dwarf::DW_TAG_base_type;
- }
/// Verify - Verify that a type descriptor is well formed.
bool Verify() const;
public:
- explicit DIType(GlobalVariable *GV);
+ explicit DIType(MDNode *N);
explicit DIType() {}
virtual ~DIType() {}
DIDescriptor getContext() const { return getDescriptorField(1); }
- std::string getName() const { return getStringField(2); }
+ const std::string &getName(std::string &F) const {
+ return getStringField(2, F);
+ }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(3); }
unsigned getLineNumber() const { return getUnsignedField(4); }
uint64_t getSizeInBits() const { return getUInt64Field(5); }
// carry this is just plain insane.
uint64_t getOffsetInBits() const { return getUInt64Field(7); }
unsigned getFlags() const { return getUnsignedField(8); }
- bool isPrivate() const { return (getFlags() & FlagPrivate) != 0; }
- bool isProtected() const { return (getFlags() & FlagProtected) != 0; }
- bool isForwardDecl() const { return (getFlags() & FlagFwdDecl) != 0; }
+ bool isPrivate() const {
+ return (getFlags() & FlagPrivate) != 0;
+ }
+ bool isProtected() const {
+ return (getFlags() & FlagProtected) != 0;
+ }
+ bool isForwardDecl() const {
+ return (getFlags() & FlagFwdDecl) != 0;
+ }
+ // isAppleBlock - Return true if this is the Apple Blocks extension.
+ bool isAppleBlockExtension() const {
+ return (getFlags() & FlagAppleBlock) != 0;
+ }
+ bool isBlockByrefStruct() const {
+ return (getFlags() & FlagBlockByrefStruct) != 0;
+ }
/// dump - print type.
void dump() const;
/// DIBasicType - A basic type, like 'int' or 'float'.
class DIBasicType : public DIType {
public:
- explicit DIBasicType(GlobalVariable *GV);
+ explicit DIBasicType(MDNode *N = 0)
+ : DIType(N, dwarf::DW_TAG_base_type) {}
+
unsigned getEncoding() const { return getUnsignedField(9); }
/// dump - print basic type.
/// a typedef, a pointer or reference, etc.
class DIDerivedType : public DIType {
protected:
- explicit DIDerivedType(GlobalVariable *GV, bool, bool)
- : DIType(GV, true, true) {}
+ explicit DIDerivedType(MDNode *N, bool, bool)
+ : DIType(N, true, true) {}
public:
- explicit DIDerivedType(GlobalVariable *GV);
+ explicit DIDerivedType(MDNode *N = 0)
+ : DIType(N, true, true) {
+ if (DbgNode && !isDerivedType())
+ DbgNode = 0;
+ }
+
DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
+ /// getOriginalTypeSize - If this type is derived from a base type then
+ /// return base type size.
+ uint64_t getOriginalTypeSize() const;
/// dump - print derived type.
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(GlobalVariable *GV);
+ explicit DICompositeType(MDNode *N = 0)
+ : DIDerivedType(N, true, true) {
+ if (N && !isCompositeType())
+ DbgNode = 0;
+ }
+
DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
+ unsigned getRunTimeLang() const { return getUnsignedField(11); }
/// Verify - Verify that a composite type descriptor is well formed.
bool Verify() const;
/// DIGlobal - This is a common class for global variables and subprograms.
class DIGlobal : public DIDescriptor {
protected:
- explicit DIGlobal(GlobalVariable *GV, unsigned RequiredTag)
- : DIDescriptor(GV, RequiredTag) {}
-
- /// isSubprogram - Return true if the specified tag is legal for
- /// DISubprogram.
- static bool isSubprogram(unsigned TAG) {
- return TAG == dwarf::DW_TAG_subprogram;
- }
-
- /// isGlobalVariable - Return true if the specified tag is legal for
- /// DIGlobalVariable.
- static bool isGlobalVariable(unsigned TAG) {
- return TAG == dwarf::DW_TAG_variable;
- }
+ explicit DIGlobal(MDNode *N, unsigned RequiredTag)
+ : DIDescriptor(N, RequiredTag) {}
public:
virtual ~DIGlobal() {}
DIDescriptor getContext() const { return getDescriptorField(2); }
- std::string getName() const { return getStringField(3); }
- std::string getDisplayName() const { return getStringField(4); }
- std::string getLinkageName() const { return getStringField(5); }
+ const std::string &getName(std::string &F) const {
+ return getStringField(3, F);
+ }
+ const std::string &getDisplayName(std::string &F) const {
+ return getStringField(4, F);
+ }
+ const std::string &getLinkageName(std::string &F) const {
+ return getStringField(5, F);
+ }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(6); }
unsigned getLineNumber() const { return getUnsignedField(7); }
DIType getType() const { return getFieldAs<DIType>(8); }
};
/// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
- class DISubprogram : public DIGlobal {
+ class DISubprogram : public DIScope {
public:
- explicit DISubprogram(GlobalVariable *GV = 0);
+ explicit DISubprogram(MDNode *N = 0) {
+ DbgNode = N;
+ if (DbgNode && !isSubprogram())
+ DbgNode = 0;
+ }
+
+ DIDescriptor getContext() const { return getDescriptorField(2); }
+ const std::string &getName(std::string &F) const {
+ return getStringField(3, F);
+ }
+ const std::string &getDisplayName(std::string &F) const {
+ return getStringField(4, F);
+ }
+ const std::string &getLinkageName(std::string &F) const {
+ return getStringField(5, F);
+ }
+ DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(6); }
+ unsigned getLineNumber() const { return getUnsignedField(7); }
DICompositeType getType() const { return getFieldAs<DICompositeType>(8); }
+ /// getReturnTypeName - Subprogram return types are encoded either as
+ /// DIType or as DICompositeType.
+ const std::string &getReturnTypeName(std::string &F) const {
+ DICompositeType DCT(getFieldAs<DICompositeType>(8));
+ if (!DCT.isNull()) {
+ DIArray A = DCT.getTypeArray();
+ DIType T(A.getElement(0).getNode());
+ return T.getName(F);
+ }
+ DIType T(getFieldAs<DIType>(8));
+ return T.getName(F);
+ }
+
+ /// 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); }
+
+ const std::string &getFilename(std::string &F) const {
+ return getCompileUnit().getFilename(F);
+ }
+ const std::string &getDirectory(std::string &F) const {
+ return getCompileUnit().getDirectory(F);
+ }
+
/// Verify - Verify that a subprogram descriptor is well formed.
bool Verify() const;
/// dump - print subprogram.
void dump() const;
+
+ /// describes - Return true if this subprogram provides debugging
+ /// information for the function F.
+ bool describes(const Function *F);
};
/// DIGlobalVariable - This is a wrapper for a global variable.
class DIGlobalVariable : public DIGlobal {
public:
- explicit DIGlobalVariable(GlobalVariable *GV = 0);
+ explicit DIGlobalVariable(MDNode *N = 0)
+ : DIGlobal(N, dwarf::DW_TAG_variable) {}
+
GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
/// Verify - Verify that a global variable descriptor is well formed.
/// global etc).
class DIVariable : public DIDescriptor {
public:
- explicit DIVariable(GlobalVariable *GV = 0);
+ explicit DIVariable(MDNode *N = 0)
+ : DIDescriptor(N) {
+ if (DbgNode && !isVariable())
+ DbgNode = 0;
+ }
DIDescriptor getContext() const { return getDescriptorField(1); }
- std::string getName() const { return getStringField(2); }
+ const std::string &getName(std::string &F) const {
+ return getStringField(2, F);
+ }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(3); }
unsigned getLineNumber() const { return getUnsignedField(4); }
DIType getType() const { return getFieldAs<DIType>(5); }
- /// isVariable - Return true if the specified tag is legal for DIVariable.
- static bool isVariable(unsigned Tag);
/// Verify - Verify that a variable descriptor is well formed.
bool Verify() const;
+ /// isBlockByrefVariable - Return true if the variable was declared as
+ /// a "__block" variable (Apple Blocks).
+ bool isBlockByrefVariable() const {
+ return getType().isBlockByrefStruct();
+ }
+
/// dump - print variable.
void dump() const;
};
- /// DIBlock - This is a wrapper for a block (e.g. a function, scope, etc).
- class DIBlock : public DIDescriptor {
+ /// DILexicalBlock - This is a wrapper for a lexical block.
+ class DILexicalBlock : public DIScope {
public:
- explicit DIBlock(GlobalVariable *GV = 0);
-
- DIDescriptor getContext() const { return getDescriptorField(1); }
+ explicit DILexicalBlock(MDNode *N = 0) {
+ DbgNode = N;
+ if (DbgNode && !isLexicalBlock())
+ DbgNode = 0;
+ }
+ DIScope getContext() const { return getFieldAs<DIScope>(1); }
+
+ const std::string &getFilename(std::string &F) const {
+ return getContext().getFilename(F);
+ }
+ const std::string &getDirectory(std::string &D) const {
+ return getContext().getDirectory(D);
+ }
+ };
+
+ /// DILocation - This object holds location information. This object
+ /// is not associated with any DWARF tag.
+ class DILocation : public DIDescriptor {
+ public:
+ explicit DILocation(MDNode *L) { DbgNode = L; }
+
+ unsigned getLineNumber() const { return getUnsignedField(0); }
+ unsigned getColumnNumber() const { return getUnsignedField(1); }
+ DIScope getScope() const { return getFieldAs<DIScope>(3); }
+ DILocation getOrigLocation() const { return getFieldAs<DILocation>(4); }
+ std::string getFilename(std::string &F) const {
+ return getScope().getFilename(F);
+ }
+ std::string getDirectory(std::string &D) const {
+ return getScope().getDirectory(D);
+ }
};
/// DIFactory - This object assists with the construction of the various
/// descriptors.
class DIFactory {
Module &M;
+ LLVMContext& VMContext;
+
// Cached values for uniquing and faster lookups.
- DIAnchor CompileUnitAnchor, SubProgramAnchor, GlobalVariableAnchor;
const Type *EmptyStructPtr; // "{}*".
Function *StopPointFn; // llvm.dbg.stoppoint
Function *FuncStartFn; // llvm.dbg.func.start
public:
explicit DIFactory(Module &m);
- /// GetOrCreateCompileUnitAnchor - Return the anchor for compile units,
- /// creating a new one if there isn't already one in the module.
- DIAnchor GetOrCreateCompileUnitAnchor();
-
- /// GetOrCreateSubprogramAnchor - Return the anchor for subprograms,
- /// creating a new one if there isn't already one in the module.
- DIAnchor GetOrCreateSubprogramAnchor();
-
- /// GetOrCreateGlobalVariableAnchor - Return the anchor for globals,
- /// creating a new one if there isn't already one in the module.
- DIAnchor GetOrCreateGlobalVariableAnchor();
-
/// GetOrCreateArray - Create an descriptor for an array of descriptors.
/// This implicitly uniques the arrays created.
DIArray GetOrCreateArray(DIDescriptor *Tys, unsigned NumTys);
const std::string &Producer,
bool isMain = false,
bool isOptimized = false,
- const char *Flags = "");
+ const char *Flags = "",
+ unsigned RunTimeVer = 0);
/// CreateEnumerator - Create a single enumerator value.
DIEnumerator CreateEnumerator(const std::string &Name, uint64_t Val);
uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType DerivedFrom,
- DIArray Elements);
+ DIArray Elements,
+ unsigned RunTimeLang = 0);
/// CreateSubprogram - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields.
DICompileUnit CompileUnit, unsigned LineNo,
DIType Type);
- /// CreateBlock - This creates a descriptor for a lexical block with the
- /// specified parent context.
- DIBlock CreateBlock(DIDescriptor Context);
+ /// CreateLexicalBlock - This creates a descriptor for a lexical block
+ /// with the specified parent context.
+ DILexicalBlock CreateLexicalBlock(DIDescriptor Context);
+
+ /// CreateLocation - Creates a debug info location.
+ DILocation CreateLocation(unsigned LineNo, unsigned ColumnNo,
+ DIScope S, DILocation OrigLoc);
/// InsertStopPoint - Create a new llvm.dbg.stoppoint intrinsic invocation,
/// inserting it at the end of the specified basic block.
private:
Constant *GetTagConstant(unsigned TAG);
- Constant *GetStringConstant(const std::string &String);
- DIAnchor GetOrCreateAnchor(unsigned TAG, const char *Name);
-
- /// getCastToEmpty - Return the descriptor as a Constant* with type '{}*'.
- Constant *getCastToEmpty(DIDescriptor D);
};
/// Finds the stoppoint coressponding to this instruction, that is the
/// Finds the dbg.declare intrinsic corresponding to this value if any.
/// It looks through pointer casts too.
const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts = true);
+
+ /// Find the debug info descriptor corresponding to this global variable.
+ Value *findDbgGlobalDeclare(GlobalVariable *V);
+
+ bool getLocationInfo(const Value *V, std::string &DisplayName,
+ std::string &Type, unsigned &LineNo, std::string &File,
+ std::string &Dir);
+
+ /// isValidDebugInfoIntrinsic - Return true if SPI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgStopPointInst &SPI,
+ CodeGenOpt::Level OptLev);
+
+ /// isValidDebugInfoIntrinsic - Return true if FSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgFuncStartInst &FSI,
+ CodeGenOpt::Level OptLev);
+
+ /// isValidDebugInfoIntrinsic - Return true if RSI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionStartInst &RSI,
+ CodeGenOpt::Level OptLev);
+
+ /// isValidDebugInfoIntrinsic - Return true if REI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgRegionEndInst &REI,
+ CodeGenOpt::Level OptLev);
+
+ /// isValidDebugInfoIntrinsic - Return true if DI is a valid debug
+ /// info intrinsic.
+ bool isValidDebugInfoIntrinsic(DbgDeclareInst &DI,
+ CodeGenOpt::Level OptLev);
+
+ /// ExtractDebugLocation - Extract debug location information
+ /// from llvm.dbg.stoppoint intrinsic.
+ DebugLoc ExtractDebugLocation(DbgStopPointInst &SPI,
+ DebugLocTracker &DebugLocInfo);
+
+ /// ExtractDebugLocation - Extract debug location information
+ /// from llvm.dbg.func_start intrinsic.
+ DebugLoc ExtractDebugLocation(DbgFuncStartInst &FSI,
+ DebugLocTracker &DebugLocInfo);
+
+ /// isInlinedFnStart - Return true if FSI is starting an inlined function.
+ bool isInlinedFnStart(DbgFuncStartInst &FSI, const Function *CurrentFn);
+
+ /// isInlinedFnEnd - Return true if REI is ending an inlined function.
+ bool isInlinedFnEnd(DbgRegionEndInst &REI, const Function *CurrentFn);
+ /// DebugInfoFinder - This object collects DebugInfo from a module.
+ class DebugInfoFinder {
+
+ public:
+ /// processModule - Process entire module and collect debug info
+ /// anchors.
+ void processModule(Module &M);
+
+ private:
+ /// processType - Process DIType.
+ void processType(DIType DT);
+
+ /// processSubprogram - Enumberate DISubprogram.
+ void processSubprogram(DISubprogram SP);
+
+ /// processStopPoint - Process DbgStopPointInst.
+ void processStopPoint(DbgStopPointInst *SPI);
+
+ /// processFuncStart - Process DbgFuncStartInst.
+ void processFuncStart(DbgFuncStartInst *FSI);
+
+ /// processRegionStart - Process DbgRegionStart.
+ void processRegionStart(DbgRegionStartInst *DRS);
+
+ /// processRegionEnd - Process DbgRegionEnd.
+ void processRegionEnd(DbgRegionEndInst *DRE);
+
+ /// processDeclare - Process DbgDeclareInst.
+ void processDeclare(DbgDeclareInst *DDI);
+
+ /// addCompileUnit - Add compile unit into CUs.
+ bool addCompileUnit(DICompileUnit CU);
+
+ /// addGlobalVariable - Add global variable into GVs.
+ bool addGlobalVariable(DIGlobalVariable DIG);
+
+ // addSubprogram - Add subprgoram into SPs.
+ bool addSubprogram(DISubprogram SP);
+
+ /// addType - Add type into Tys.
+ bool addType(DIType DT);
+
+ public:
+ typedef SmallVector<MDNode *, 8>::iterator iterator;
+ iterator compile_unit_begin() { return CUs.begin(); }
+ iterator compile_unit_end() { return CUs.end(); }
+ iterator subprogram_begin() { return SPs.begin(); }
+ iterator subprogram_end() { return SPs.end(); }
+ iterator global_variable_begin() { return GVs.begin(); }
+ iterator global_variable_end() { return GVs.end(); }
+ iterator type_begin() { return TYs.begin(); }
+ iterator type_end() { return TYs.end(); }
+
+ unsigned compile_unit_count() { return CUs.size(); }
+ unsigned global_variable_count() { return GVs.size(); }
+ unsigned subprogram_count() { return SPs.size(); }
+ unsigned type_count() { return TYs.size(); }
+
+ private:
+ SmallVector<MDNode *, 8> CUs; // Compile Units
+ SmallVector<MDNode *, 8> SPs; // Subprograms
+ SmallVector<MDNode *, 8> GVs; // Global Variables;
+ SmallVector<MDNode *, 8> TYs; // Types
+ SmallPtrSet<MDNode *, 64> NodesSeen;
+ };
} // end namespace llvm
#endif
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