[Bug analyzer/105287] [12 Regression] ICE in analyzer get_region_for_local on C++ await cond_var

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105287

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Iain D Sandoe <iains@gcc.gnu.org>:

https://gcc.gnu.org/g:15a176a833f23e64ad38690a678bf938227ce46f

commit r12-8308-g15a176a833f23e64ad38690a678bf938227ce46f
Author: Iain Sandoe <iain@sandoe.co.uk>
Date:   Sun Apr 17 20:58:28 2022 +0100

    c++, coroutines: Make sure our temporaries are in a bind expr [PR105287]

    There are a few cases where we can generate a temporary that does not need
    to be added to the coroutine frame (i.e. these are genuinely ephemeral). 
The
    intent was that unnamed temporaries should not be 'promoted' to coroutine
    frame entries.  However there was a thinko and these were not actually ever
    added to the bind expressions being generated for the expanded awaits. 
This
    meant that they were showing in the global namspace, leading to an empty
    DECL_CONTEXT and the ICE reported.

    Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

            PR c++/105287

    gcc/cp/ChangeLog:

            * coroutines.cc (maybe_promote_temps): Ensure generated temporaries
            are added to the bind expr.
            (add_var_to_bind): Fix local var naming to use portable
punctuation.
            (register_local_var_uses): Do not add synthetic names to unnamed
            temporaries.

    gcc/testsuite/ChangeLog:

            * g++.dg/coroutines/pr105287.C: New test.