DIDerivedType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
// typedefs are encoded in DIDerivedType format.
assert(Ty.isType() && "Invalid type!");
assert(FriendTy.isType() && "Invalid friend type!");
Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_friend)
.concat(StringRef()) // Name
.concat(0) // Line
.concat(0) // Size
.concat(0) // Align
.concat(0) // Offset
.concat(0) // Flags
.get(VMContext),
nullptr, Ty.getRef(), FriendTy.getRef()};
return DIDerivedType(MDNode::get(VMContext, Elts));
}
/// 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) {
DIDescriptor Context(getNonCompileUnitScope(Scope));
assert((!Context || Context.isScope()) &&
"createLocalVariable should be called with a valid Context");
assert(Ty.isType() &&
"createLocalVariable should be called with a valid type");
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);
}
DIVariable RetVar(Node);
assert(RetVar.isVariable() &&
"createLocalVariable should return a valid DIVariable");
return RetVar;
}
/// createFriend - Create debugging information entry for a 'friend'.
DIDerivedType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
// typedefs are encoded in DIDerivedType format.
assert(Ty.isType() && "Invalid type!");
assert(FriendTy.isType() && "Invalid friend type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_friend),
NULL,
Ty.generateRef(),
NULL, // Name
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 DIDerivedType(MDNode::get(VMContext, Elts));
}
DIDerivedType DIBuilder::createInheritance(DIType Ty, DIType BaseTy,
uint64_t BaseOffset,
unsigned Flags) {
assert(Ty.isType() && "Unable to create inheritance");
// TAG_inheritance is encoded in DIDerivedType format.
Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_inheritance)
.concat(StringRef()) // Name
.concat(0) // Line
.concat(0) // Size
.concat(0) // Align
.concat(BaseOffset)
.concat(Flags)
.get(VMContext),
nullptr, Ty.getRef(), BaseTy.getRef()};
return DIDerivedType(MDNode::get(VMContext, Elts));
}
DIDerivedType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {
assert(RTy.isType() && "Unable to create reference type");
// References are encoded in DIDerivedType format.
Value *Elts[] = {HeaderBuilder::get(Tag)
.concat(StringRef()) // Name
.concat(0) // Line
.concat(0) // Size
.concat(0) // Align
.concat(0) // Offset
.concat(0) // Flags
.get(VMContext),
nullptr, // Filename
nullptr, // TheCU,
RTy.getRef()};
return DIDerivedType(MDNode::get(VMContext, Elts));
}
/// createReferenceType - Create debugging information entry for a reference
/// type.
DIDerivedType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {
assert(RTy.isType() && "Unable to create reference type");
// References are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
NULL, // Filename
NULL, // TheCU,
NULL, // Name
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 DIDerivedType(MDNode::get(VMContext, Elts));
}
/// createInheritance - Create debugging information entry to establish
/// inheritance relationship between two types.
DIDerivedType DIBuilder::createInheritance(
DIType Ty, DIType BaseTy, uint64_t BaseOffset, unsigned Flags) {
assert(Ty.isType() && "Unable to create inheritance");
// TAG_inheritance is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
NULL,
Ty.generateRef(),
NULL, // Name
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 DIDerivedType(MDNode::get(VMContext, Elts));
}
/// createTypedef - Create debugging information entry for a typedef.
DIDerivedType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
unsigned LineNo, DIDescriptor Context) {
// typedefs are encoded in DIDerivedType format.
assert(Ty.isType() && "Invalid typedef type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
File.getFileNode(),
getNonCompileUnitScope(Context),
MDString::get(VMContext, Name),
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 DIDerivedType(MDNode::get(VMContext, Elts));
}
