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Subject: [Bug c++/105622] [13 Regression] ICE in cxx_eval_store_expression
 with [[no_unique_address]] since r13-160-g967cdbe6629653
Date: Tue, 24 May 2022 19:50:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105622

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:2540e2c604142889308857657d3510874955336a

commit r13-746-g2540e2c604142889308857657d3510874955336a
Author: Jason Merrill <jason@redhat.com>
Date:   Fri May 20 16:16:25 2022 -0400

    c++: constexpr empty base redux [PR105622]

    Here calling the constructor for s.__size_ had ctx->ctor for s itself
    because cxx_eval_store_expression doesn't create a ctor for the empty
field.
    Then cxx_eval_call_expression returned the s initializer, and my empty =
base
    overhaul in r13-160 got confused because the type of init is not an emp=
ty
    class.  But that's OK, we should be checking the type of the original L=
HS
    instead.  We also want to use initialized_type in the condition, in case
    init is an AGGR_INIT_EXPR.

    I spent quite a while working on more complex solutions before coming b=
ack
    to this simple one.

            PR c++/105622

    gcc/cp/ChangeLog:

            * constexpr.cc (cxx_eval_store_expression): Adjust assert.
            Use initialized_type.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/no_unique_address14.C: New test.=