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From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/98899] [10/11 Regression] ICE in tsubst_copy, at
 cp/pt.c:16198 since r10-1280-g78f7607db4c53f8c
Date: Mon, 01 Feb 2021 13:15:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98899

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppalka at gcc dot gnu.org

--- Comment #4 from Patrick Palka <ppalka at gcc dot gnu.org> ---
FWIW, here's a more minimal testcase:

template <int __v> struct integral_constant {
  static constexpr int value =3D __v;
};
struct _Bit_iterator_base {
  template <class> struct basic_symbol {
    basic_symbol() noexcept(integral_constant<false>::value);
  };
  struct symbol_type : basic_symbol<int> {
    symbol_type() : basic_symbol() {}
  };
};=