[Bug ipa/92454] [10 Regression] ICE: Segmentation fault (in identify_dead_nodes)

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92454

--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Author: jamborm
Date: Wed Nov 13 14:12:58 2019
New Revision: 278142

URL: https://gcc.gnu.org/viewcvs?rev=278142&root=gcc&view=rev
Log:
Add a few missing checks that IPA_NODE_REF is not NULL (PR 92454)

2019-11-13  Jan Hubicka  <hubicka@ucw.cz>
            Martin Jambor  <mjambor@suse.cz>

        PR ipa/92454
        * ipa-cp.c (spread_undeadness): Check that IPA_NODE_REF exists.
        (identify_dead_nodes): Likewise.

        testsuite/
        * g++.dg/ipa/pr92454.C: New test.


Added:
    trunk/gcc/testsuite/g++.dg/ipa/pr92454.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-cp.c
    trunk/gcc/testsuite/ChangeLog