[Bug c++/107280] [10/11/12/13 Regression] ICE: tree check: expected constructor, have view_convert_expr in cxx_eval_store_expression, at cp/constexpr.cc:5928

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107280

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ICE: tree check: expected   |[10/11/12/13 Regression]
                   |constructor, have           |ICE: tree check: expected
                   |view_convert_expr in        |constructor, have
                   |cxx_eval_store_expression,  |view_convert_expr in
                   |at cp/constexpr.cc:5928     |cxx_eval_store_expression,
                   |                            |at cp/constexpr.cc:5928
   Target Milestone|13.0                        |10.5
           Priority|P3                          |P2

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
This isn't about consteval.  Adjusted C++17 test:

// PR c++/107280

struct string {
  char str[8] = "";
};
template <int, int> constexpr void
test ()
{
  string str{};
  auto append = [&](const char *s) { *str.str = *s; };
  append("");
}

static_assert ((test<true, true>(), true), "");

Started with r10-3661-g8e007055dd1374, making this a regression.

commit 8e007055dd1374ca4c44406a4ead172be0dfa3a8
Author: Jakub Jelinek <ja...@redhat.com>
Date:   Sat Oct 5 09:38:21 2019 +0200

    PR c++/91369 - Implement P0784R7: constexpr new