[Bug target/92669] [10 Regression] ICE in pre_and_rev_post_order_compute_fn at gcc/cfganal.c:1034 since r278666

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92669

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Nov 26 12:03:58 2019
New Revision: 278723

URL: https://gcc.gnu.org/viewcvs?rev=278723&root=gcc&view=rev
Log:
2019-11-26  Richard Biener  <rguent...@suse.de>

        PR middle-end/92669
        * cfganal.c (pre_and_rev_post_order_compute_fn): Deal with
        NULL pre_order.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfganal.c