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From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/114349] [14 regression] ICE when building qtwebengine with
 -std=gnu++14 (cxx_eval_call_expression, at cp/constexpr.cc:3027)
Date: Fri, 15 Mar 2024 08:27:04 +0000
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X-Bugzilla-Keywords: ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114349

--- Comment #1 from Sam James <sjames at gcc dot gnu.org> ---
ice-on-invalid reduction:
```
struct integral_constant {
} template <bool> using __bool_constant integral_constant;
template <template typename>
, typename, typename > using ExtractOrT integral_constant;
template <typename T> using GetPropagateOnContainerSwap T;
using propagate_on_container_swap =3D
    ExtractOrT<GetPropagateOnContainerSwap, int, __bool_constant<false>>;
struct Hash;
         template < class > constexpr IsNoThrowSwappable(__bool_constant< t=
rue
>;
         template < class Alloc > struct raw_hash_set {
  using allocator_type =3D Alloc;                   operator=3D(raw_hash_se=
t )
noexcept(IsNoThrowSwappable< allocator_type >(=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
propagate_on_container_swap{      }              );        }
         struct flat_hash_map : raw_hash_set< int > {       }
         template < typename, typename, typename > using QuicHashMapImpl
flat_hash_map;
         template < typename Key, typename Value =3D Key > using QuicHashMap
QuicHashMapImpl< Key, Value, Hash >;
         typedef QuicHashMap< int > ParameterMap;
         ParameterMap custom_transport_parameters_to_send_;
         ParameterMap custom_parameters {
custom_parameters =3D custom_transport_parameters_to_send_
```=