[Bug tree-optimization/17806] [4.0 Regression] compiler error: in verify_loop_structure, at cfgloop.c:1491 , works -O2, breaks with -O3

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |tree-optimization
           Keywords|                            |ice-on-valid-code
            Summary|compiler error: in          |[4.0 Regression] compiler
                   |verify_loop_structure, at   |error: in
                   |cfgloop.c:1491 , works -O2, |verify_loop_structure, at
                   |breaks with -O3             |cfgloop.c:1491 , works -O2,
                   |                            |breaks with -O3
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17806