[Bug middle-end/49394] New: [4.7 Regression] libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc FAILs with -fipa-pta -fnon-call-exceptions

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49394

           Summary: [4.7 Regression]
                    libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc
                    FAILs with -fipa-pta -fnon-call-exceptions
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz
                CC: rgue...@gcc.gnu.org
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 24511
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24511
reduced testcase (from libstdc++-v3/testsuite/30_threads/lock_guard/cons/1.cc)

Output:
$ g++ -O -fipa-pta -fnon-call-exceptions testcase.C
$ gdb ./a.out
(gdb) r
Starting program: /home/smatz/gcc-bug/951/a.out 
terminate called after throwing an instance of 'int'

Program received signal SIGABRT, Aborted.
0x00007ffff72e1a05 in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff72e1a05 in raise () from /lib64/libc.so.6
#1  0x00007ffff72e308f in abort () from /lib64/libc.so.6
#2  0x00007ffff7b95fd5 in __gnu_cxx::__verbose_terminate_handler() () from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.5/libstdc++.so.6
#3  0x00007ffff7b94406 in ?? () from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.5/libstdc++.so.6
#4  0x00007ffff7b94433 in std::terminate() () from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.5/libstdc++.so.6
#5  0x00007ffff7b9451e in __cxa_throw () from
/usr/lib/gcc/x86_64-pc-linux-gnu/4.4.5/libstdc++.so.6
#6  0x00000000004007bf in ~Mutex () at testcase.C:7
#7  main () at testcase.C:36

Tested revisions:
r174979 - fail
r173150 - OK
4.6.0 - OK