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From: "woodard at redhat dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug default/28641] unspecified indirect subtype changes.
Date: Wed, 08 Dec 2021 18:54:32 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28641

--- Comment #6 from Ben Woodard <woodard at redhat dot com> ---
The functions that I pointed out in the previous comment are all _ZNK
functions. You can overload on the const'ness of a function and so it has t=
o be
encoded in the mangling of the linkage name.

struct X { void foo(); void foo() const; };

We should try to get this fixed in clang so that it correctly encodes the
const'ness of the function in the DWARF. However, we are going to need to d=
eal
with all the versions of clang which don't get this right. So I propose a
fixup: if the function has the K attribute in its name mangling even if the
function's DWARF is not marked const then the function should be labeled as
const.

List of needed actions:
1) file a bug with clang
2) when the difference between two functions is const'ness print that out d=
on't
just leave people with "...has some indirect sub-type changes:" then print
nothing.
3) if the function mangle name has the K in it, then mark it const in the I=
R.

--=20
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