[Bug middle-end/50199] New: [4.7 Regression] wrong code with -flto -fno-merge-constants

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50199

             Bug #: 50199
           Summary: [4.7 Regression] wrong code with -flto
                    -fno-merge-constants
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 25111
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25111
reduced testcase

Output:
$ gcc -O2 -flto -fno-merge-constants --param lto-min-partition=1 testcase.c
$ ./a.out 
Aborted

Tested revisions:
r178096 - fail
r178005 - fail
r177982 - OK