[Bug middle-end/69729] New: [6 regression] [CHKP] internal compiler error: Segmentation fault

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69729

            Bug ID: 69729
           Summary: [6 regression] [CHKP] internal compiler error:
                    Segmentation fault
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ienkovich at gcc dot gnu.org
  Target Milestone: ---

Here is a test which fails when compiled with both LTO and CHKP enabled:

>cat test.i
class cl1
{
 public:
  virtual ~cl1();
};

class cl2
{
 public:
  virtual ~cl2();
};

class cl3 : cl1, cl2
{
};

class cl4 : cl3
{
  ~cl4();
};

cl4::~cl4 ()
{
}
>g++ -fcheck-pointer-bounds -mmpx -flto -flto-partition=max -shared -fPIC test.i
lto1: internal compiler error: Segmentation fault
0xccfd22 crash_signal
        /export/users/ienkovic/issues/mpx/gcc/gcc/toplev.c:335
0x3b21c3567f ???
       
/home/glibctest/rpmbuild/BUILD/glibc-2.17-c758a686/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7cfabd cgraph_node::get_untransformed_body()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraph.c:3326
0x7da835 cgraph_node::expand_thunk(bool, bool)
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:1604
0x7dbf1f cgraph_node::assemble_thunks_and_aliases()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:1906
0x7dbfc9 cgraph_node::assemble_thunks_and_aliases()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:1924
0x7dc584 cgraph_node::expand()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:2036
0x7dcc44 output_in_order
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:2211
0x7dd310 symbol_table::compile()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraphunit.c:2459
0x7183f3 lto_main()
        /export/users/ienkovic/issues/mpx/gcc/gcc/lto/lto.c:3327
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.
lto-wrapper: fatal error: /export/users/ienkovic/issues/mpx/gcc-build/bin/g++
returned 1 exit status
compilation terminated.
/gnumnt/msticlxl7_users/ienkovic/binutils-gdb-build/bin/ld: error: lto-wrapper
failed
collect2: error: ld returned 1 exit status

Regression starts from r232551