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| Current File : //usr/src/contrib/llvm/lib/Analysis/DIBuilder.cpp |
//===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the DIBuilder.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/DIBuilder.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/Constants.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Module.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
using namespace llvm;
using namespace llvm::dwarf;
static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) {
assert((Tag & LLVMDebugVersionMask) == 0 &&
"Tag too large for debug encoding!");
return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion);
}
DIBuilder::DIBuilder(Module &m)
: M(m), VMContext(M.getContext()), TheCU(0), TempEnumTypes(0),
TempRetainTypes(0), TempSubprograms(0), TempGVs(0), DeclareFn(0),
ValueFn(0)
{}
/// finalize - Construct any deferred debug info descriptors.
void DIBuilder::finalize() {
DIArray Enums = getOrCreateArray(AllEnumTypes);
DIType(TempEnumTypes).replaceAllUsesWith(Enums);
DIArray RetainTypes = getOrCreateArray(AllRetainTypes);
DIType(TempRetainTypes).replaceAllUsesWith(RetainTypes);
DIArray SPs = getOrCreateArray(AllSubprograms);
DIType(TempSubprograms).replaceAllUsesWith(SPs);
for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
DISubprogram SP(SPs.getElement(i));
if (NamedMDNode *NMD = getFnSpecificMDNode(M, SP)) {
SmallVector<Value *, 4> Variables;
for (unsigned ii = 0, ee = NMD->getNumOperands(); ii != ee; ++ii)
Variables.push_back(NMD->getOperand(ii));
if (MDNode *Temp = SP.getVariablesNodes()) {
DIArray AV = getOrCreateArray(Variables);
DIType(Temp).replaceAllUsesWith(AV);
}
NMD->eraseFromParent();
}
}
DIArray GVs = getOrCreateArray(AllGVs);
DIType(TempGVs).replaceAllUsesWith(GVs);
}
/// getNonCompileUnitScope - If N is compile unit return NULL otherwise return
/// N.
static MDNode *getNonCompileUnitScope(MDNode *N) {
if (DIDescriptor(N).isCompileUnit())
return NULL;
return N;
}
/// createCompileUnit - A CompileUnit provides an anchor for all debugging
/// information generated during this instance of compilation.
void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
StringRef Directory, StringRef Producer,
bool isOptimized, StringRef Flags,
unsigned RunTimeVer) {
assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) ||
(Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) &&
"Invalid Language tag");
assert(!Filename.empty() &&
"Unable to create compile unit without filename");
Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
TempEnumTypes = MDNode::getTemporary(VMContext, TElts);
Value *THElts[] = { TempEnumTypes };
MDNode *EnumHolder = MDNode::get(VMContext, THElts);
TempRetainTypes = MDNode::getTemporary(VMContext, TElts);
Value *TRElts[] = { TempRetainTypes };
MDNode *RetainHolder = MDNode::get(VMContext, TRElts);
TempSubprograms = MDNode::getTemporary(VMContext, TElts);
Value *TSElts[] = { TempSubprograms };
MDNode *SPHolder = MDNode::get(VMContext, TSElts);
TempGVs = MDNode::getTemporary(VMContext, TElts);
Value *TVElts[] = { TempGVs };
MDNode *GVHolder = MDNode::get(VMContext, TVElts);
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
ConstantInt::get(Type::getInt32Ty(VMContext), Lang),
MDString::get(VMContext, Filename),
MDString::get(VMContext, Directory),
MDString::get(VMContext, Producer),
// Deprecate isMain field.
ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
MDString::get(VMContext, Flags),
ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer),
EnumHolder,
RetainHolder,
SPHolder,
GVHolder
};
TheCU = DICompileUnit(MDNode::get(VMContext, Elts));
// Create a named metadata so that it is easier to find cu in a module.
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu");
NMD->addOperand(TheCU);
}
/// createFile - Create a file descriptor to hold debugging information
/// for a file.
DIFile DIBuilder::createFile(StringRef Filename, StringRef Directory) {
assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit");
assert(!Filename.empty() && "Unable to create file without name");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_file_type),
MDString::get(VMContext, Filename),
MDString::get(VMContext, Directory),
NULL // TheCU
};
return DIFile(MDNode::get(VMContext, Elts));
}
/// createEnumerator - Create a single enumerator value.
DIEnumerator DIBuilder::createEnumerator(StringRef Name, uint64_t Val) {
assert(!Name.empty() && "Unable to create enumerator without name");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_enumerator),
MDString::get(VMContext, Name),
ConstantInt::get(Type::getInt64Ty(VMContext), Val)
};
return DIEnumerator(MDNode::get(VMContext, Elts));
}
/// createNullPtrType - Create C++0x nullptr type.
DIType DIBuilder::createNullPtrType(StringRef Name) {
assert(!Name.empty() && "Unable to create type without name");
// nullptr is encoded in DIBasicType format. Line number, filename,
// ,size, alignment, offset and flags are always empty here.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
NULL, //TheCU,
MDString::get(VMContext, Name),
NULL, // Filename
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Encoding
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createBasicType - Create debugging information entry for a basic
/// type, e.g 'char'.
DIType DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,
uint64_t AlignInBits,
unsigned Encoding) {
assert(!Name.empty() && "Unable to create type without name");
// Basic types are encoded in DIBasicType format. Line number, filename,
// offset and flags are always empty here.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
NULL, //TheCU,
MDString::get(VMContext, Name),
NULL, // Filename
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createQualifiedType - Create debugging information entry for a qualified
/// type, e.g. 'const int'.
DIType DIBuilder::createQualifiedType(unsigned Tag, DIType FromTy) {
// Qualified types are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
NULL, //TheCU,
MDString::get(VMContext, StringRef()), // Empty name.
NULL, // Filename
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
FromTy
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createPointerType - Create debugging information entry for a pointer.
DIType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits,
uint64_t AlignInBits, StringRef Name) {
// Pointer types are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
NULL, //TheCU,
MDString::get(VMContext, Name),
NULL, // Filename
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
PointeeTy
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createReferenceType - Create debugging information entry for a reference.
DIType DIBuilder::createReferenceType(DIType RTy) {
assert(RTy.Verify() && "Unable to create reference type");
// References are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_reference_type),
NULL, // TheCU,
NULL, // Name
NULL, // Filename
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
RTy
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createTypedef - Create debugging information entry for a typedef.
DIType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
unsigned LineNo, DIDescriptor Context) {
// typedefs are encoded in DIDerivedType format.
assert(Ty.Verify() && "Invalid typedef type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
Ty
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createFriend - Create debugging information entry for a 'friend'.
DIType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
// typedefs are encoded in DIDerivedType format.
assert(Ty.Verify() && "Invalid type!");
assert(FriendTy.Verify() && "Invalid friend type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_friend),
Ty,
NULL, // Name
Ty.getFile(),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
FriendTy
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createInheritance - Create debugging information entry to establish
/// inheritance relationship between two types.
DIType DIBuilder::createInheritance(DIType Ty, DIType BaseTy,
uint64_t BaseOffset, unsigned Flags) {
assert(Ty.Verify() && "Unable to create inheritance");
// TAG_inheritance is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
Ty,
NULL, // Name
Ty.getFile(),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
BaseTy
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createMemberType - Create debugging information entry for a member.
DIType DIBuilder::createMemberType(DIDescriptor Scope, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType Ty) {
// TAG_member is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_member),
getNonCompileUnitScope(Scope),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
Ty
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createObjCIVar - Create debugging information entry for Objective-C
/// instance variable.
DIType DIBuilder::createObjCIVar(StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType Ty, StringRef PropertyName,
StringRef GetterName, StringRef SetterName,
unsigned PropertyAttributes) {
// TAG_member is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_member),
getNonCompileUnitScope(File),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
Ty,
MDString::get(VMContext, PropertyName),
MDString::get(VMContext, GetterName),
MDString::get(VMContext, SetterName),
ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes)
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createObjCIVar - Create debugging information entry for Objective-C
/// instance variable.
DIType DIBuilder::createObjCIVar(StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType Ty, MDNode *PropertyNode) {
// TAG_member is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_member),
getNonCompileUnitScope(File),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
Ty,
PropertyNode
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createObjCProperty - Create debugging information entry for Objective-C
/// property.
DIObjCProperty DIBuilder::createObjCProperty(StringRef Name,
DIFile File, unsigned LineNumber,
StringRef GetterName,
StringRef SetterName,
unsigned PropertyAttributes,
DIType Ty) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
MDString::get(VMContext, GetterName),
MDString::get(VMContext, SetterName),
ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes),
Ty
};
return DIObjCProperty(MDNode::get(VMContext, Elts));
}
/// createClassType - Create debugging information entry for a class.
DIType DIBuilder::createClassType(DIDescriptor Context, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
uint64_t OffsetInBits, unsigned Flags,
DIType DerivedFrom, DIArray Elements,
MDNode *VTableHolder, MDNode *TemplateParams) {
// TAG_class_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
DerivedFrom,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
VTableHolder,
TemplateParams
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createTemplateTypeParameter - Create debugging information for template
/// type parameter.
DITemplateTypeParameter
DIBuilder::createTemplateTypeParameter(DIDescriptor Context, StringRef Name,
DIType Ty, MDNode *File, unsigned LineNo,
unsigned ColumnNo) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
Ty,
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
};
return DITemplateTypeParameter(MDNode::get(VMContext, Elts));
}
/// createTemplateValueParameter - Create debugging information for template
/// value parameter.
DITemplateValueParameter
DIBuilder::createTemplateValueParameter(DIDescriptor Context, StringRef Name,
DIType Ty, uint64_t Val,
MDNode *File, unsigned LineNo,
unsigned ColumnNo) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
Ty,
ConstantInt::get(Type::getInt64Ty(VMContext), Val),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
};
return DITemplateValueParameter(MDNode::get(VMContext, Elts));
}
/// createStructType - Create debugging information entry for a struct.
DIType DIBuilder::createStructType(DIDescriptor Context, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits, uint64_t AlignInBits,
unsigned Flags, DIArray Elements,
unsigned RunTimeLang) {
// TAG_structure_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
NULL,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createUnionType - Create debugging information entry for an union.
DIType DIBuilder::createUnionType(DIDescriptor Scope, StringRef Name,
DIFile File,
unsigned LineNumber, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Flags,
DIArray Elements, unsigned RunTimeLang) {
// TAG_union_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_union_type),
getNonCompileUnitScope(Scope),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
NULL,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createSubroutineType - Create subroutine type.
DIType DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) {
// TAG_subroutine_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
MDString::get(VMContext, ""),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt64Ty(VMContext), 0),
ConstantInt::get(Type::getInt64Ty(VMContext), 0),
ConstantInt::get(Type::getInt64Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
NULL,
ParameterTypes,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createEnumerationType - Create debugging information entry for an
/// enumeration.
DIType DIBuilder::createEnumerationType(DIDescriptor Scope, StringRef Name,
DIFile File, unsigned LineNumber,
uint64_t SizeInBits,
uint64_t AlignInBits,
DIArray Elements) {
// TAG_enumeration_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
getNonCompileUnitScope(Scope),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
NULL,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
MDNode *Node = MDNode::get(VMContext, Elts);
AllEnumTypes.push_back(Node);
return DIType(Node);
}
/// createArrayType - Create debugging information entry for an array.
DIType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits,
DIType Ty, DIArray Subscripts) {
// TAG_array_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
NULL, //TheCU,
MDString::get(VMContext, ""),
NULL, //TheCU,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
Ty,
Subscripts,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createVectorType - Create debugging information entry for a vector.
DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
DIType Ty, DIArray Subscripts) {
// TAG_vector_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
NULL, //TheCU,
MDString::get(VMContext, ""),
NULL, //TheCU,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
Ty,
Subscripts,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
return DIType(MDNode::get(VMContext, Elts));
}
/// createArtificialType - Create a new DIType with "artificial" flag set.
DIType DIBuilder::createArtificialType(DIType Ty) {
if (Ty.isArtificial())
return Ty;
SmallVector<Value *, 9> Elts;
MDNode *N = Ty;
assert (N && "Unexpected input DIType!");
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
if (Value *V = N->getOperand(i))
Elts.push_back(V);
else
Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
}
unsigned CurFlags = Ty.getFlags();
CurFlags = CurFlags | DIType::FlagArtificial;
// Flags are stored at this slot.
Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
return DIType(MDNode::get(VMContext, Elts));
}
/// retainType - Retain DIType in a module even if it is not referenced
/// through debug info anchors.
void DIBuilder::retainType(DIType T) {
AllRetainTypes.push_back(T);
}
/// createUnspecifiedParameter - Create unspeicified type descriptor
/// for the subroutine type.
DIDescriptor DIBuilder::createUnspecifiedParameter() {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters)
};
return DIDescriptor(MDNode::get(VMContext, Elts));
}
/// createTemporaryType - Create a temporary forward-declared type.
DIType DIBuilder::createTemporaryType() {
// Give the temporary MDNode a tag. It doesn't matter what tag we
// use here as long as DIType accepts it.
Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
MDNode *Node = MDNode::getTemporary(VMContext, Elts);
return DIType(Node);
}
/// createTemporaryType - Create a temporary forward-declared type.
DIType DIBuilder::createTemporaryType(DIFile F) {
// Give the temporary MDNode a tag. It doesn't matter what tag we
// use here as long as DIType accepts it.
Value *Elts[] = {
GetTagConstant(VMContext, DW_TAG_base_type),
TheCU,
NULL,
F
};
MDNode *Node = MDNode::getTemporary(VMContext, Elts);
return DIType(Node);
}
/// createForwardDecl - Create a temporary forward-declared type that
/// can be RAUW'd if the full type is seen.
DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIFile F,
unsigned Line, unsigned RuntimeLang) {
// Create a temporary MDNode.
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
NULL, // TheCU
MDString::get(VMContext, Name),
F,
ConstantInt::get(Type::getInt32Ty(VMContext), Line),
// To ease transition include sizes etc of 0.
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext),
DIDescriptor::FlagFwdDecl),
NULL,
DIArray(),
ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
};
MDNode *Node = MDNode::getTemporary(VMContext, Elts);
return DIType(Node);
}
/// getOrCreateArray - Get a DIArray, create one if required.
DIArray DIBuilder::getOrCreateArray(ArrayRef<Value *> Elements) {
if (Elements.empty()) {
Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
return DIArray(MDNode::get(VMContext, Null));
}
return DIArray(MDNode::get(VMContext, Elements));
}
/// getOrCreateSubrange - Create a descriptor for a value range. This
/// implicitly uniques the values returned.
DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Hi) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
};
return DISubrange(MDNode::get(VMContext, Elts));
}
/// createGlobalVariable - Create a new descriptor for the specified global.
DIGlobalVariable DIBuilder::
createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber,
DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
NULL, // TheCU,
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
Ty,
ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
Val
};
MDNode *Node = MDNode::get(VMContext, Elts);
AllGVs.push_back(Node);
return DIGlobalVariable(Node);
}
/// createStaticVariable - Create a new descriptor for the specified static
/// variable.
DIGlobalVariable DIBuilder::
createStaticVariable(DIDescriptor Context, StringRef Name,
StringRef LinkageName, DIFile F, unsigned LineNumber,
DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
Ty,
ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
Val
};
MDNode *Node = MDNode::get(VMContext, Elts);
AllGVs.push_back(Node);
return DIGlobalVariable(Node);
}
/// createVariable - Create a new descriptor for the specified variable.
DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope,
StringRef Name, DIFile File,
unsigned LineNo, DIType Ty,
bool AlwaysPreserve, unsigned Flags,
unsigned ArgNo) {
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
getNonCompileUnitScope(Scope),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))),
Ty,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
Constant::getNullValue(Type::getInt32Ty(VMContext)),
};
MDNode *Node = MDNode::get(VMContext, Elts);
if (AlwaysPreserve) {
// The optimizer may remove local variable. If there is an interest
// to preserve variable info in such situation then stash it in a
// named mdnode.
DISubprogram Fn(getDISubprogram(Scope));
NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, Fn);
FnLocals->addOperand(Node);
}
return DIVariable(Node);
}
/// createComplexVariable - Create a new descriptor for the specified variable
/// which has a complex address expression for its address.
DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
StringRef Name, DIFile F,
unsigned LineNo,
DIType Ty, ArrayRef<Value *> Addr,
unsigned ArgNo) {
SmallVector<Value *, 15> Elts;
Elts.push_back(GetTagConstant(VMContext, Tag));
Elts.push_back(getNonCompileUnitScope(Scope)),
Elts.push_back(MDString::get(VMContext, Name));
Elts.push_back(F);
Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext),
(LineNo | (ArgNo << 24))));
Elts.push_back(Ty);
Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
Elts.append(Addr.begin(), Addr.end());
return DIVariable(MDNode::get(VMContext, Elts));
}
/// createFunction - Create a new descriptor for the specified function.
DISubprogram DIBuilder::createFunction(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile File, unsigned LineNo,
DIType Ty,
bool isLocalToUnit, bool isDefinition,
unsigned ScopeLine,
unsigned Flags, bool isOptimized,
Function *Fn,
MDNode *TParams,
MDNode *Decl) {
Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
Value *TVElts[] = { Temp };
MDNode *THolder = MDNode::get(VMContext, TVElts);
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
NULL,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn,
TParams,
Decl,
THolder,
ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine)
};
MDNode *Node = MDNode::get(VMContext, Elts);
// Create a named metadata so that we do not lose this mdnode.
AllSubprograms.push_back(Node);
return DISubprogram(Node);
}
/// createMethod - Create a new descriptor for the specified C++ method.
DISubprogram DIBuilder::createMethod(DIDescriptor Context,
StringRef Name,
StringRef LinkageName,
DIFile F,
unsigned LineNo, DIType Ty,
bool isLocalToUnit,
bool isDefinition,
unsigned VK, unsigned VIndex,
MDNode *VTableHolder,
unsigned Flags,
bool isOptimized,
Function *Fn,
MDNode *TParam) {
Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
MDNode *Temp = MDNode::getTemporary(VMContext, TElts);
Value *TVElts[] = { Temp };
MDNode *THolder = MDNode::get(VMContext, TVElts);
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
F,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
Ty,
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
VTableHolder,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn,
TParam,
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
THolder,
// FIXME: Do we want to use a different scope lines?
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
};
MDNode *Node = MDNode::get(VMContext, Elts);
return DISubprogram(Node);
}
/// createNameSpace - This creates new descriptor for a namespace
/// with the specified parent scope.
DINameSpace DIBuilder::createNameSpace(DIDescriptor Scope, StringRef Name,
DIFile File, unsigned LineNo) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
getNonCompileUnitScope(Scope),
MDString::get(VMContext, Name),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
};
return DINameSpace(MDNode::get(VMContext, Elts));
}
/// createLexicalBlockFile - This creates a new MDNode that encapsulates
/// an existing scope with a new filename.
DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope,
DIFile File) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
Scope,
File
};
return DILexicalBlockFile(MDNode::get(VMContext, Elts));
}
DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File,
unsigned Line, unsigned Col) {
// Defeat MDNode uniqing for lexical blocks by using unique id.
static unsigned int unique_id = 0;
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
getNonCompileUnitScope(Scope),
ConstantInt::get(Type::getInt32Ty(VMContext), Line),
ConstantInt::get(Type::getInt32Ty(VMContext), Col),
File,
ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
};
return DILexicalBlock(MDNode::get(VMContext, Elts));
}
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
Instruction *InsertBefore) {
assert(Storage && "no storage passed to dbg.declare");
assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
if (!DeclareFn)
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
return CallInst::Create(DeclareFn, Args, "", InsertBefore);
}
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
BasicBlock *InsertAtEnd) {
assert(Storage && "no storage passed to dbg.declare");
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
if (!DeclareFn)
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo };
// If this block already has a terminator then insert this intrinsic
// before the terminator.
if (TerminatorInst *T = InsertAtEnd->getTerminator())
return CallInst::Create(DeclareFn, Args, "", T);
else
return CallInst::Create(DeclareFn, Args, "", InsertAtEnd);
}
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
DIVariable VarInfo,
Instruction *InsertBefore) {
assert(V && "no value passed to dbg.value");
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
if (!ValueFn)
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
Value *Args[] = { MDNode::get(V->getContext(), V),
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
VarInfo };
return CallInst::Create(ValueFn, Args, "", InsertBefore);
}
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
DIVariable VarInfo,
BasicBlock *InsertAtEnd) {
assert(V && "no value passed to dbg.value");
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
if (!ValueFn)
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
Value *Args[] = { MDNode::get(V->getContext(), V),
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
VarInfo };
return CallInst::Create(ValueFn, Args, "", InsertAtEnd);
}