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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: Fri, 18 Feb 2022 22:19:37 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28901

--- Comment #5 from Martin Sebor <msebor at gmail dot com> ---
Here you go:

(gdb) p (llvm::Value*)CI
$1 =3D (llvm::Value *) 0x986a2a0
(gdb) p errs()=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
Overloaded function instance llvm::errs() # of parms 0
...Badness of length : {0, 0}
Overload resolution champion is 0, ambiguous? 0
$2 =3D (llvm::raw_fd_ostream &) @0x979fbc0: {<llvm::raw_pwrite_stream> =3D
{<llvm::raw_ostream> =3D {
      _vptr$raw_ostream =3D 0x96d2698 <vtable for llvm::raw_fd_ostream+16>,=
=20
      Kind =3D llvm::raw_ostream::OStreamKind::OK_OStream, OutBufStart =3D =
0x0,=20
      OutBufEnd =3D 0x0, OutBufCur =3D 0x0, ColorEnabled =3D true,=20
      TiedStream =3D 0x0,=20
      BufferMode =3D llvm::raw_ostream::BufferKind::Unbuffered,=20
      static BLACK =3D llvm::raw_ostream::Colors::BLACK,=20
      static RED =3D llvm::raw_ostream::Colors::RED,=20
      static GREEN =3D llvm::raw_ostream::Colors::GREEN,=20
      static YELLOW =3D llvm::raw_ostream::Colors::YELLOW,=20
      static BLUE =3D llvm::raw_ostream::Colors::BLUE,=20
      static MAGENTA =3D llvm::raw_ostream::Colors::MAGENTA,=20
      static CYAN =3D llvm::raw_ostream::Colors::CYAN,=20
      static WHITE =3D llvm::raw_ostream::Colors::WHITE,=20
      static SAVEDCOLOR =3D llvm::raw_ostream::Colors::SAVEDCOLOR,=20
      static RESET =3D llvm::raw_ostream::Colors::RESET}, <No data fields>}=
,=20
  FD =3D 2, ShouldClose =3D false, SupportsSeeking =3D false,=20
  IsRegularFile =3D false, HasColors =3D {Storage =3D {{empty =3D 0 '\000',=
=20
        value =3D false}, hasVal =3D false}}, EC =3D {_M_value =3D 0,=20
    _M_cat =3D 0x7ffff7eb3160 <(anonymous namespace)::system_category_insta=
nce>},=20
  pos =3D 207}
(gdb) p $1->print($2, false)
Overloaded method instance llvm::Value::print(llvm::raw_ostream&, bool) con=
st,
# of parms 3
...Badness of length : {0, 0}
...Badness of arg 1 : {1, 1}
...Badness of arg 2 : {100, 0}
...Badness of arg 3 : {0, 0}
Overload resolution champion is 0, ambiguous? 0
Overloaded method instance llvm::Value::print(llvm::raw_ostream&,
llvm::ModuleSlotTracker&, bool) const, # of parms 4
...Badness of length : {100, 0}
...Badness of arg 1 : {1, 1}
...Badness of arg 2 : {100, 0}
...Badness of arg 3 : {100, 0}
Overload resolution champion is 0, ambiguous? 0
Cannot resolve method llvm::Value::print to any overloaded instance

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