[Bug tree-optimization/71084] [7 Regression] ICE in compute_dominance_frontiers_1 (cfganal.c:1302)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71084

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r236114:

commit bfa8ea12839b8c5781aa16733ee3578ff95789ca
Author: ienkovich <ienkovich@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Wed May 11 09:33:13 2016 +0000

    gcc/

        PR middle-end/70807
        * cfgrtl.h (delete_insn_and_edges): Now return bool.
        * cfgrtl.c (delete_insn_and_edges): Likewise.
        * config/i386/i386.c (convert_scalars_to_vector): Remove
        redundant code.
        * cse.c (cse_insn): Compute cse_cfg_altered.
        (delete_trivially_dead_insns): Likewise.
        (cse_cc_succs): Likewise.
        (rest_of_handle_cse): Free dominance info if required.
        (rest_of_handle_cse2): Likewise.
        (rest_of_handle_cse_after_global_opts): Likewise.

    gcc/testsuite/

        PR middle-end/70807
        * gcc.dg/pr70807.c: New test.