[Bug tree-optimization/66863] [6 Regression] wrong code at -Os and above on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66863

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jul 14 11:39:14 2015
New Revision: 225768

URL: https://gcc.gnu.org/viewcvs?rev=225768&root=gcc&view=rev
Log:
2015-07-14  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/66863
        * tree-vrp.c (register_edge_assert_for_2): Properly restrict
        what we record for conversion use stmt lhs inequalities.

        * gcc.dg/torture/pr66863.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr66863.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c