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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62598 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-01-20 19:08:39 +00:00
parent 9ec50ab3f8
commit a913f4fca9
1 changed files with 48 additions and 56 deletions
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104
include/llvm/Analysis/DebugInfo.h
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@ -30,7 +30,7 @@ namespace llvm {
class DbgStopPointInst;
class DbgDeclareInst;
class Instruction;
class DIDescriptor {
public:
enum {
@ -40,29 +40,29 @@ namespace llvm {
Version4 = 4 << 16, // Constant for version 4.
VersionMask = 0xffff0000 // Mask for version number.
};
protected:
GlobalVariable *GV;
/// DIDescriptor constructor. If the specified GV is non-null, this checks
/// 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);
std::string getStringField(unsigned Elt) const;
unsigned getUnsignedField(unsigned Elt) const {
return (unsigned)getUInt64Field(Elt);
}
uint64_t getUInt64Field(unsigned Elt) const;
DIDescriptor getDescriptorField(unsigned Elt) const;
template <typename DescTy>
DescTy getFieldAs(unsigned Elt) const {
return DescTy(getDescriptorField(Elt).getGV());
}
GlobalVariable *getGlobalVariableField(unsigned Elt) const;
public:
explicit DIDescriptor() : GV(0) {}
explicit DIDescriptor(GlobalVariable *gv) : GV(gv) {}
@ -74,18 +74,18 @@ namespace llvm {
unsigned getVersion() const {
return getUnsignedField(0) & VersionMask;
}
unsigned getTag() const {
return getUnsignedField(0) & ~VersionMask;
}
};
/// DIAnchor - A wrapper for various anchor descriptors.
class DIAnchor : public DIDescriptor {
public:
explicit DIAnchor(GlobalVariable *GV = 0);
unsigned getAnchorTag() const { return getUnsignedField(1); }
};
@ -93,27 +93,27 @@ namespace llvm {
class DISubrange : public DIDescriptor {
public:
explicit DISubrange(GlobalVariable *GV = 0);
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) {}
unsigned getNumElements() const;
DIDescriptor getElement(unsigned Idx) const {
return getDescriptorField(Idx);
}
};
/// DICompileUnit - A wrapper for a compile unit.
class DICompileUnit : public DIDescriptor {
public:
explicit DICompileUnit(GlobalVariable *GV = 0);
unsigned getLanguage() const { return getUnsignedField(2); }
std::string getFilename() const { return getStringField(3); }
std::string getDirectory() const { return getStringField(4); }
@ -129,11 +129,11 @@ namespace llvm {
class DIEnumerator : public DIDescriptor {
public:
explicit DIEnumerator(GlobalVariable *GV = 0);
std::string getName() const { return getStringField(1); }
uint64_t getEnumValue() const { return getUInt64Field(2); }
};
/// DIType - This is a wrapper for a type.
/// FIXME: Types should be factored much better so that CV qualifiers and
/// others do not require a huge and empty descriptor full of zeros.
@ -187,17 +187,17 @@ namespace llvm {
return "";
}
};
/// DIBasicType - A basic type, like 'int' or 'float'.
class DIBasicType : public DIType {
public:
explicit DIBasicType(GlobalVariable *GV);
unsigned getEncoding() const { return getUnsignedField(9); }
std::string getFilename() const { return getStringField(10); }
std::string getDirectory() const { return getStringField(11); }
};
/// DIDerivedType - A simple derived type, like a const qualified type,
/// a typedef, a pointer or reference, etc.
class DIDerivedType : public DIType {
@ -206,20 +206,19 @@ namespace llvm {
: DIType(GV, true, true) {}
public:
explicit DIDerivedType(GlobalVariable *GV);
DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
std::string getFilename() const { return getStringField(10); }
std::string getDirectory() const { return getStringField(11); }
};
/// DICompositeType - This descriptor holds a type that can refer to multiple
/// other types, like a function or struct.
/// FIXME: Why is this a DIDerivedType??
class DICompositeType : public DIDerivedType {
public:
explicit DICompositeType(GlobalVariable *GV);
DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
std::string getFilename() const { return getStringField(11); }
std::string getDirectory() const { return getStringField(12); }
@ -227,7 +226,7 @@ namespace llvm {
/// 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:
@ -253,11 +252,10 @@ namespace llvm {
std::string getName() const { return getStringField(3); }
std::string getDisplayName() const { return getStringField(4); }
std::string getLinkageName() const { return getStringField(5); }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(6); }
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); }
@ -273,8 +271,7 @@ namespace llvm {
return "";
}
};
/// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
class DISubprogram : public DIGlobal {
public:
@ -286,12 +283,12 @@ namespace llvm {
/// Verify - Verify that a subprogram descriptor is well formed.
bool Verify() const;
};
/// DIGlobalVariable - This is a wrapper for a global variable.
class DIGlobalVariable : public DIGlobal {
public:
explicit DIGlobalVariable(GlobalVariable *GV = 0);
GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
std::string getFilename() const { return getStringField(12); }
std::string getDirectory() const { return getStringField(13); }
@ -299,31 +296,28 @@ namespace llvm {
/// Verify - Verify that a global variable descriptor is well formed.
bool Verify() const;
};
/// DIVariable - This is a wrapper for a variable (e.g. parameter, local,
/// global etc).
class DIVariable : public DIDescriptor {
public:
explicit DIVariable(GlobalVariable *GV = 0);
DIDescriptor getContext() const { return getDescriptorField(1); }
std::string getName() const { return getStringField(2); }
DICompileUnit getCompileUnit() const{ return getFieldAs<DICompileUnit>(3); }
unsigned getLineNumber() const { return getUnsignedField(4); }
DIType getType() const { return getFieldAs<DIType>(5); }
std::string getFilename() const { return getStringField(6); }
std::string getDirectory() const { return getStringField(7); }
/// 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;
};
/// DIBlock - This is a wrapper for a block (e.g. a function, scope, etc).
class DIBlock : public DIDescriptor {
public:
@ -331,7 +325,7 @@ namespace llvm {
DIDescriptor getContext() const { return getDescriptorField(1); }
};
/// DIFactory - This object assists with the construction of the various
/// descriptors.
class DIFactory {
@ -346,12 +340,12 @@ namespace llvm {
Function *DeclareFn; // llvm.dbg.declare
StringMap<Constant*> StringCache;
DenseMap<Constant*, DIDescriptor> SimpleConstantCache;
DIFactory(const DIFactory &); // DO NOT IMPLEMENT
void operator=(const DIFactory&); // DO NOT IMPLEMENT
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();
@ -371,8 +365,7 @@ namespace llvm {
/// GetOrCreateSubrange - Create a descriptor for a value range. This
/// implicitly uniques the values returned.
DISubrange GetOrCreateSubrange(int64_t Lo, int64_t Hi);
/// CreateCompileUnit - Create a new descriptor for the specified compile
/// unit.
DICompileUnit CreateCompileUnit(unsigned LangID,
@ -382,7 +375,7 @@ namespace llvm {
/// CreateEnumerator - Create a single enumerator value.
DIEnumerator CreateEnumerator(const std::string &Name, uint64_t Val);
/// CreateBasicType - Create a basic type like int, float, etc.
DIBasicType CreateBasicType(DIDescriptor Context, const std::string &Name,
DICompileUnit CompileUnit, unsigned LineNumber,
@ -391,7 +384,7 @@ namespace llvm {
unsigned Encoding,
const std::string *FileName = 0,
const std::string *Directory = 0);
/// CreateDerivedType - Create a derived type like const qualified type,
/// pointer, typedef, etc.
DIDerivedType CreateDerivedType(unsigned Tag, DIDescriptor Context,
@ -416,7 +409,7 @@ namespace llvm {
DIArray Elements,
const std::string *FileName = 0,
const std::string *Directory = 0);
/// CreateSubprogram - Create a new descriptor for the specified subprogram.
/// See comments in DISubprogram for descriptions of these fields.
DISubprogram CreateSubprogram(DIDescriptor Context, const std::string &Name,
@ -438,8 +431,7 @@ namespace llvm {
bool isDefinition, llvm::GlobalVariable *GV,
const std::string *FileName = 0,
const std::string *Directory = 0);
/// CreateVariable - Create a new descriptor for the specified variable.
DIVariable CreateVariable(unsigned Tag, DIDescriptor Context,
const std::string &Name,
@ -447,16 +439,16 @@ namespace llvm {
DIType Type,
const std::string *FileName = 0,
const std::string *Directory = 0);
/// CreateBlock - This creates a descriptor for a lexical block with the
/// specified parent context.
DIBlock CreateBlock(DIDescriptor Context);
/// InsertStopPoint - Create a new llvm.dbg.stoppoint intrinsic invocation,
/// inserting it at the end of the specified basic block.
void InsertStopPoint(DICompileUnit CU, unsigned LineNo, unsigned ColNo,
BasicBlock *BB);
/// InsertSubprogramStart - Create a new llvm.dbg.func.start intrinsic to
/// mark the start of the specified subprogram.
void InsertSubprogramStart(DISubprogram SP, BasicBlock *BB);
@ -464,23 +456,23 @@ namespace llvm {
/// InsertRegionStart - Insert a new llvm.dbg.region.start intrinsic call to
/// mark the start of a region for the specified scoping descriptor.
void InsertRegionStart(DIDescriptor D, BasicBlock *BB);
/// InsertRegionEnd - Insert a new llvm.dbg.region.end intrinsic call to
/// mark the end of a region for the specified scoping descriptor.
void InsertRegionEnd(DIDescriptor D, BasicBlock *BB);
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
void InsertDeclare(llvm::Value *Storage, DIVariable D, BasicBlock *BB);
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
/// stoppoint that dominates this instruction
const DbgStopPointInst *findStopPoint(const Instruction *Inst);