[Bug tree-optimization/89505] [7/8 Regression] LibreOffice miscompilation starting with r260383

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89505

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar  5 08:26:32 2019
New Revision: 269383

URL: https://gcc.gnu.org/viewcvs?rev=269383&root=gcc&view=rev
Log:
2019-03-05  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2019-02-26  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/89505
        * tree-ssa-structalias.c (compute_dependence_clique): Make sure
        to handle restrict pointed-to vars with multiple subvars
        correctly.

        * gcc.dg/torture/pr89505.c: New testcase.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.dg/torture/pr89505.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/testsuite/ChangeLog
    branches/gcc-8-branch/gcc/tree-ssa-structalias.c