[Bug target/69551] [4.9/5/6 Regression] Wrong code with single element vector insert

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69551

--- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Feb 26 08:34:58 2016
New Revision: 233734

URL: https://gcc.gnu.org/viewcvs?rev=233734&root=gcc&view=rev
Log:
2016-02-26  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/69551
        * tree-ssa-structalias.c (get_constraint_for_ssa_var): When
        looking through aliases adjust DECL_PT_UID to refer to the
        ultimate alias target.

        * gcc.dg/torture/pr69951.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr69951.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-structalias.c