[Bug c++/59208] New: ice in initialize_flags_in_bb

[dcb314 at hotmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59208

            Bug ID: 59208
           Summary: ice in initialize_flags_in_bb
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com

Created attachment 31256
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31256&action=edit
gzipped C++ source code

The source code from bug # 45875, when compiled with today's trunk
of 20131120, says

bug1.cc: In function ‘void add_button(Widget, int&, Dimension&, DebuggerType,
EntryType, string)’:
bug1.cc:48073:13: internal compiler error: in initialize_flags_in_bb, at
tree-into-ssa.c:459
 static void add_button(Widget form, int& row, Dimension& max_width,
             ^
0xcd9db9 initialize_flags_in_bb
    ../../src/trunk/gcc/tree-into-ssa.c:459
0xcd9db9 mark_block_for_update
    ../../src/trunk/gcc/tree-into-ssa.c:473
0xce1f50 mark_use_interesting
    ../../src/trunk/gcc/tree-into-ssa.c:2456
0xce1f50 prepare_block_for_update
    ../../src/trunk/gcc/tree-into-ssa.c:2531

This worked a few days ago, at 20131117, so there is recent breakage.