[Bug tree-optimization/87609] [7/8/9 Regression] miscompilation with restrict and loop

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87609

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 22 08:36:30 2019
New Revision: 269097

URL: https://gcc.gnu.org/viewcvs?rev=269097&root=gcc&view=rev
Log:
2019-02-22  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/87609
        * tree-core.h (tree_base): Document special clique values.
        * tree-inline.c (remap_dependence_clique): Do not use the
        special clique value of one.
        (maybe_set_dependence_info): Use clique one.
        (clear_dependence_clique): New callback.
        (compute_dependence_clique): Clear clique one from all refs
        before assigning it (again).

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-core.h
    trunk/gcc/tree-inline.c
    trunk/gcc/tree-ssa-structalias.c