[Bug rtl-optimization/58726] [4.7/4.8/4.9 Regression] wrong code at -Os on x86_64-linux-gnu (affecting trunk/4.7/4.6, but not 4.8)

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58726

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|wrong code at -Os on        |[4.7/4.8/4.9 Regression]
                   |x86_64-linux-gnu (affecting |wrong code at -Os on
                   |trunk/4.7/4.6, but not 4.8) |x86_64-linux-gnu (affecting
                   |                            |trunk/4.7/4.6, but not 4.8)
   Target Milestone|---                         |4.7.4
      Known to fail|                            |4.4.7, 4.5.4, 4.6.4, 4.7.3,
                   |                            |4.8.2, 4.9.0
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.1.2, 4.3.4, 4.8.1
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2013-10-15
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  Works with 4.8.1 but fails on the branch.  Seems to be a heisenbug.