[Bug tree-optimization/76783] [7 Regression] wrong code with conditional vector assignment @ -Og

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76783

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Aug 16 11:22:47 2016
New Revision: 239496

URL: https://gcc.gnu.org/viewcvs?rev=239496&root=gcc&view=rev
Log:
2016-08-16  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/76783
        * tree-ssa-propagate.c (ssa_prop_init): Use RPO order.  Clear
        BB visited flags at start.

        * gcc.dg/pr76783.c: New testcase.
        * gcc.dg/tree-ssa/pr69270-2.c: Adjust.

Added:
    trunk/gcc/testsuite/gcc.dg/pr76783.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr69270-2.c
    trunk/gcc/tree-ssa-propagate.c