[Bug sanitizer/81212] [6 Regression] -Wreturn-type is disabled when used together with -fsanitize=return

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81212

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Jun 25 16:57:59 2018
New Revision: 262042

URL: https://gcc.gnu.org/viewcvs?rev=262042&root=gcc&view=rev
Log:
        Backported from mainline
        2017-12-02  Jakub Jelinek  <jakub@redhat.com>

        PR c++/81212
        * tree-cfg.c (pass_warn_function_return::execute): Handle
        __builtin_ubsan_handle_missing_return like __builtin_unreachable
        with BUILTINS_LOCATION.

        * g++.dg/ubsan/pr81212.C: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/g++.dg/ubsan/pr81212.C
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/testsuite/ChangeLog
    branches/gcc-6-branch/gcc/tree-cfg.c