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From: "msebor at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug c++/28901] unable to resolve function overloads involving
 inheritance
Date: Thu, 24 Feb 2022 21:26:32 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28901

--- Comment #11 from Martin Sebor <msebor at gmail dot com> ---
I'm not having any luck isolating the problem from LLVM to a standalone test
case.  I can't even recreate it within LLVM if I replace llvm::raw_ostream =
with
an exact copy of it (llvm::xxx_raw_ostream).  There's something about
llvm::raw_ostream that GDB doesn't like.

With a copy of raw_ostream called xraw_ostream and the code below in
SimplifyLibCalls.cpp:

struct Foo
{
  void foo(xxx_raw_ostream &);
  void foo(xxx_raw_ostream &, int);

  void bar(raw_ostream &);
  void bar(raw_ostream &, int);
};

void Foo::foo(xxx_raw_ostream &) { }
void Foo::foo(xxx_raw_ostream &, int) { }

void Foo::bar(raw_ostream &) { }
void Foo::bar(raw_ostream &, int) { }

GDB can resolve the call pfoo->foo (xr) but not pfoo->bar (r) (with pfoo be=
ing
a pointer to Foo, xr a reference to xxx_raw_ostream, and r a reference to
raw_ostream).

--=20
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