[Bug tree-optimization/50161] New: [4.7 Regression] wrong code with -fno-tree-ter and __builtin_popcountl

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50161

             Bug #: 50161
           Summary: [4.7 Regression] wrong code with -fno-tree-ter and
                    __builtin_popcountl
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 25081
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25081
reduced testcase

Output:
$ gcc -O2 -fno-tree-ter -funroll-loops testcase.c
$ ./a.out 
Aborted

Tested revisions:
r177969 - fail
r173150 - OK
4.6.1 - OK