[Bug c++/116567] [14/15 Regression] ICE when using lamdba as default non-type template parameter.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116567

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Patrick Palka
<ppa...@gcc.gnu.org>:

https://gcc.gnu.org/g:0c80216b7bb0938bff7db230cbefa5bc3e8b3034

commit r14-10652-g0c80216b7bb0938bff7db230cbefa5bc3e8b3034
Author: Patrick Palka <ppa...@redhat.com>
Date:   Sat Sep 7 14:10:09 2024 -0400

    c++: template depth of lambda in default targ [PR116567]

    For GCC 14, let's narrowly fix this bug by just pruning the result of
    add_extra_args after the fact to get rid of any unwanted outer levels.

            PR c++/116567

    gcc/cp/ChangeLog:

            * pt.cc (tsubst_lambda_expr): For a deferred-substitution lambda,
            trim the augmented template arguments to match the template depth
            of the lambda.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/lambda-targ7.C: New test.

    Reviewed-by: Jason Merrill <ja...@redhat.com>