[Bug tree-optimization/47087] New: ICE: verify_stmts failed: statement marked for throw, but doesn't with -O -fexceptions -fnon-call-exceptions -ftrapv

[zsojka at seznam dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47087

           Summary: ICE: verify_stmts failed: statement marked for throw,
                    but doesn't with -O -fexceptions -fnon-call-exceptions
                    -ftrapv
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: zso...@seznam.cz
                CC: ste...@gcc.gnu.org
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu


Created attachment 22861
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22861
reduced testcase (from gcc.c-torture/execute/pr43220.c)

After submitting PR47086, I noticed the reduced testcase fails with different
message than the original testcase. This one shows the same ICE as original
testcase.

Compiler output:
$ gcc -O -fexceptions -fnon-call-exceptions -ftrapv pr47087.c  
pr47087.c: In function 'foo':
pr47087.c:2:1: error: statement marked for throw, but doesn't
D.2685_4 = (int) ivtmp.8_32;

pr47087.c:2:1: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r168296 - crash

I don't know if this is a regression or not.