[Bug c++/118775] [12/13/14/15 Regression] ICE in tree_to_uhwi with unique_ptr and addresss of var converted to an integer

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118775

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpola...@gcc.gnu.org>:

https://gcc.gnu.org/g:aa55a6a30bc4778938af42dac9b624cf67fa4698

commit r15-7893-gaa55a6a30bc4778938af42dac9b624cf67fa4698
Author: Marek Polacek <pola...@redhat.com>
Date:   Tue Feb 11 15:43:40 2025 -0500

    c++: ICE with operator new[] in constexpr [PR118775]

    Here we ICE since r11-7740 because we no longer say that (long)&a
    (where a is a global var) is non_constant_p.  So VERIFY_CONSTANT
    does not return and we crash on tree_to_uhwi.  We should check
    tree_fits_uhwi_p before calling tree_to_uhwi.

            PR c++/118775

    gcc/cp/ChangeLog:

            * constexpr.cc (cxx_eval_call_expression): Check tree_fits_uhwi_p.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/constexpr-new24.C: New test.
            * g++.dg/cpp2a/constexpr-new25.C: New test.

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