[Bug rtl-optimization/89242] [7/8/9 Regression] ICE in verify_dominators, at dominance.c:1184 (error: dominator of 7 should be 5, not 2)

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89242

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Author: marxin
Date: Thu Feb 14 11:30:58 2019
New Revision: 268873

URL: https://gcc.gnu.org/viewcvs?rev=268873&root=gcc&view=rev
Log:
Call free_dominance_info when transformed in DCE (PR rtl-optimization/89242).

2019-02-14  Martin Liska  <mli...@suse.cz>

        PR rtl-optimization/89242
        * dce.c (delete_unmarked_insns): Call free_dominance_info we
        process a transformation.
2019-02-14  Martin Liska  <mli...@suse.cz>

        PR rtl-optimization/89242
        * g++.dg/pr89242.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/pr89242.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dce.c
    trunk/gcc/testsuite/ChangeLog