[Bug tree-optimization/62079] New: [4.9/4.10 Regression] ICE: in calc_dfs_tree, at dominance.c:401 with -fnon-call-exceptions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62079

            Bug ID: 62079
           Summary: [4.9/4.10 Regression] ICE: in calc_dfs_tree, at
                    dominance.c:401 with -fnon-call-exceptions
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 33280
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33280&action=edit
partially reduced testcase

Compiler output:
$ gcc -std=c++0x -O2 -fnon-call-exceptions testcase.C
testcase.C: In function 'int main()':
testcase.C:75:1: internal compiler error: in calc_dfs_tree, at dominance.c:401
 }
 ^
0x98b7ab calc_dfs_tree
        /mnt/svn/gcc-trunk/gcc/dominance.c:401
0x98c7c1 calculate_dominance_info(cdi_direction)
        /mnt/svn/gcc-trunk/gcc/dominance.c:662
0x9220a7 flow_loops_find(loops*)
        /mnt/svn/gcc-trunk/gcc/cfgloop.c:414
0xb903c7 loop_optimizer_init(unsigned int)
        /mnt/svn/gcc-trunk/gcc/loop-init.c:92
0x157db93 if_convert
        /mnt/svn/gcc-trunk/gcc/ifcvt.c:4427
0x157fe8d execute
        /mnt/svn/gcc-trunk/gcc/ifcvt.c:4650
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

Tested revisions:
r213777 - ICE
4_9 r212703 - ICE
4_8 r212702 - OK
4_7 r211571 - OK