[Bug c++/94205] [8/9/10 Regression] ICE in cxx_eval_constant_expression with 'this'-capturing lambda inside an NSDMI since r8-1251

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94205

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>:

https://gcc.gnu.org/g:76f09260b7eccd6c3cfa3dcf3c22897fe12a8065

commit r10-7490-g76f09260b7eccd6c3cfa3dcf3c22897fe12a8065
Author: Jason Merrill <ja...@redhat.com>
Date:   Tue Mar 31 17:34:47 2020 -0400

    c++: Fix DMI with lambda 'this' capture [PR94205]

    We represent 'this' in a default member initializer with a
PLACEHOLDER_EXPR.
    Normally in constexpr evaluation when we encounter one it refers to
    ctx->ctor, but when we're creating a temporary of class type, that replaces
    ctx->ctor, so a PLACEHOLDER_EXPR that refers to the type of the member
being
    initialized needs to be replaced before that happens.

    gcc/cp/ChangeLog
    2020-03-31  Jason Merrill  <ja...@redhat.com>

            PR c++/94205
            * constexpr.c (cxx_eval_constant_expression) [TARGET_EXPR]: Call
            replace_placeholders.
            * typeck2.c (store_init_value): Fix arguments to
            fold_non_dependent_expr.