[Bug middle-end/84233] [7/8 Regression] ICE (segfault) in gimple_assign_rhs_code

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84233

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Feb  8 13:29:15 2018
New Revision: 257486

URL: https://gcc.gnu.org/viewcvs?rev=257486&root=gcc&view=rev
Log:
2018-02-08  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/84233
        * tree-ssa-phiprop.c (propagate_with_phi): Use separate
        changed flag instead of boguously re-using phi_inserted.

        * g++.dg/torture/pr84233.C: New testcase.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr84233.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiprop.c