[Bug middle-end/19698] New: [4.0 regression] Infinite loop in update_life_info

[schwab at suse dot de]

The attached test causes the compiler to hang in update_life_info (called from 
rest_of_handle_life) while compiling the FFT function with -O2.

-- 
           Summary: [4.0 regression] Infinite loop in update_life_info
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schwab at suse dot de
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: ia64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19698