[Bug rtl-optimization/92610] [10 Regression] ICE in calc_dfs_tree, at dominance.c:458 since r270940

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92610

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Sat Nov 23 10:05:31 2019
New Revision: 278640

URL: https://gcc.gnu.org/viewcvs?rev=278640&root=gcc&view=rev
Log:
        PR rtl-optimization/92610
        * cse.c (rest_of_handle_cse2): Call cleanup_cfg (0) also if
        cse_cfg_altered is set, even when tem is 0.
        (rest_of_handle_cse_after_global_opts): Likewise.

        * g++.dg/opt/pr92610.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/opt/pr92610.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cse.c
    trunk/gcc/testsuite/ChangeLog