[Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632

           Summary: [4.6 Regression] ICE: verify_flow_info failed: BB 4
                    can not throw but has an EH edge with
                    -fnon-call-exceptions -ftrapv and operator new[]
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 23264
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23264
reduced testcase

Compiler output:
$ gcc -O -fnon-call-exceptions -ftrapv testcase.C 
testcase.C: In function 'void foo(S<char>*)':
testcase.C:11:1: error: BB 4 can not throw but has an EH edge
testcase.C:11:1: internal compiler error: verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r169824 - crash
r160000 - OK