[Bug middle-end/71476] ICE in gimplify_switch_expr with -Wswitch-unreachable

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71476

--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Author: mpolacek
Date: Mon Jun 13 08:57:02 2016
New Revision: 237367

URL: https://gcc.gnu.org/viewcvs?rev=237367&root=gcc&view=rev
Log:
        PR middle-end/71476
        * gimplify.c (maybe_warn_switch_unreachable): Factored out of
        gimplify_switch_expr.
        (warn_switch_unreachable_r): New function.

        * c-c++-common/Wswitch-unreachable-4.c: New test.
        * gcc.dg/Wswitch-unreachable-2.c: New test.
        * g++.dg/tm/jump1.C: Move dg-warning.

Added:
    trunk/gcc/testsuite/c-c++-common/Wswitch-unreachable-4.c
    trunk/gcc/testsuite/gcc.dg/Wswitch-unreachable-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimplify.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/tm/jump1.C