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From: "nilsgladitz at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/98056] ICE tree check: expected record_type or union_type
 or qual_union_type, have array_type in build_special_member_call, at
 cp/call.c:9862 since r11-2183-g0f66b8486cea8668
Date: Sat, 06 Mar 2021 09:52:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98056

--- Comment #4 from Nils Gladitz <nilsgladitz at gmail dot com> ---
Not sure if this is helpful at all but I think I ran into the same issue and
reduced it to the following which is slightly shorter but also keeps the
standard C++ includes intact (manually reintroduced them after reduction):

#include <coroutine>
#include <initializer_list>

struct a {
  a();
};

struct task {
  struct promise_type {
    std::suspend_always initial_suspend();
    std::suspend_always final_suspend() noexcept;
    void unhandled_exception();
    task get_return_object();
  };

  std::suspend_always c(a);

  a bar(std::initializer_list<a>);

 task e() {
    co_await c(bar({a{}}));
  }
};=