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PR14759: Debug info support for C++ member pointers.

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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
This commit is contained in:
David Blaikie
2013-01-07 05:51:15 +00:00
parent 71ab7a79a7
commit 62fdfb5fa7
6 changed files with 67 additions and 0 deletions
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18
lib/IR/DIBuilder.cpp
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@ -229,6 +229,24 @@ DIType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits,
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) {