PR14759: Debug info support for C++ member pointers.
This works fine with GDB for member variable pointers, but GDB's support for
member function pointers seems to be quite unrelated to
DW_TAG_ptr_to_member_type. (see GDB bug 14998 for details)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171698 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/IR/DIBuilder.cpp b/lib/IR/DIBuilder.cpp
index 802c332..9fd0cd8 100644
--- a/lib/IR/DIBuilder.cpp
+++ b/lib/IR/DIBuilder.cpp
@@ -229,6 +229,24 @@
return DIType(MDNode::get(VMContext, Elts));
}
+DIType DIBuilder::createMemberPointerType(DIType PointeeTy, DIType Base) {
+ // Pointer types are encoded in DIDerivedType format.
+ Value *Elts[] = {
+ GetTagConstant(VMContext, dwarf::DW_TAG_ptr_to_member_type),
+ NULL, //TheCU,
+ NULL,
+ NULL, // Filename
+ ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0),
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0),
+ ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+ ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+ PointeeTy,
+ Base
+ };
+ return DIType(MDNode::get(VMContext, Elts));
+}
+
/// createReferenceType - Create debugging information entry for a reference
/// type.
DIType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {