[Bug ipa/68857] New: [6 regression] FAIL: gcc.target/i386/mpx/vararg-8-nov.c -O3 -g (internal compiler error)

[ienkovich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68857

            Bug ID: 68857
           Summary: [6 regression] FAIL:
                    gcc.target/i386/mpx/vararg-8-nov.c   -O3 -g  (internal
                    compiler error)
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ienkovich at gcc dot gnu.org
  Target Milestone: ---

Starts from r231540

>gcc -mmpx -fcheck-pointer-bounds -O3 vararg-8-nov.c -c
vararg-8-nov.c:35:1: error: Instrumentation thunk has wrong edge callee
 }
 ^

foo/3 (foo) @0x7fe77ca4a170
  Type: function definition analyzed
  Visibility: externally_visible public
  References: foo.chkp/8 (chkp)
  Referring:
  Availability: available
  First run: 0
  Function flags:
  Thunk fixed offset 0 virtual value 0 has virtual offset 0)
  Called by:
  Calls: foo.chkp.constprop.0/19 (1.00 per call)
  Has instrumented version.
vararg-8-nov.c:35:1: internal compiler error: verify_cgraph_node failed
0x8a7b59 cgraph_node::verify_node()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraph.c:3163
0x897d25 symtab_node::verify()
        /export/users/ienkovic/issues/mpx/gcc/gcc/symtab.c:1170
0x897da6 symtab_node::verify_symtab_nodes()
        /export/users/ienkovic/issues/mpx/gcc/gcc/symtab.c:1190
0x8b5ab0 symtab_node::checking_verify_symtab_nodes()
        /export/users/ienkovic/issues/mpx/gcc/gcc/cgraph.h:602
0xb210d6 symbol_table::remove_unreachable_nodes(_IO_FILE*)
        /export/users/ienkovic/issues/mpx/gcc/gcc/ipa.c:673
0xc5fff6 execute_todo
        /export/users/ienkovic/issues/mpx/gcc/gcc/passes.c:2024
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