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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95311] [11 Regression] ICE in
 cp_ubsan_maybe_instrument_member_call at gcc/cp/cp-ubsan.c:136 since
 r11-578-g72af65b91cc2a2eb
Date: Thu, 28 May 2020 12:15:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95311

David Binderman <dcb314 at hotmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com

--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
This C++ code seems to do something similar:

class a {
  virtual long b() const;
};
class c : a {
public:
  long b() const;
};
class d : c {
  long e();
};
long d::e() { b(); }

$ /home/dcb/gcc/results/bin/g++ -c -w -fsanitize=3Dundefined -std=3Dc++11=20
bug616.cc
bug616.cc: In member function =E2=80=98long int d::e()=E2=80=99:
bug616.cc:11:20: internal compiler error: tree check: expected class
=E2=80=98expression
=E2=80=99, have =E2=80=98declaration=E2=80=99 (parm_decl) in tree_operand_c=
heck, at tree.h:3794
   11 | long d::e() { b(); }
      |                    ^
0x124fe0a tree_class_check_failed(tree_node const*, tree_code_class, char
const*
, int, char const*)
        ../../trunk.git/gcc/tree.c:9755
0x6b915d cp_ubsan_maybe_instrument_member_call(tree_node*)
        ../../trunk.git/gcc/cp/cp-ubsan.c:0=