[Bug c++/66467] New: [6 Regression] ICE: Error reporting routines re-entered.

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66467

            Bug ID: 66467
           Summary: [6 Regression] ICE: Error reporting routines
                    re-entered.
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
  Target Milestone: ---

trippels@gcc2-power8 tools % cat test.ii
template <bool> struct A { typedef int type; };
struct B {
  static const int value = 0;
};
template <class> struct C { typedef int type; };
template <class> struct F : B {};
class D {
  template <class Expr>
  typename A<F<typename C<Expr>::type>::value || B::value>::type
  operator=(Expr);
};
void fn1() {
  D opt;
  opt = 0;
}

trippels@gcc2-power8 tools % g++ -c test.ii
‘
Internal compiler error: Error reporting routines re-entered.
0x10438cbf warn_logical_operator(unsigned int, tree_code, tree_node*,
tree_code, tree_node*, tree_code, tree_node*)
        ../../gcc/gcc/c-family/c-common.c:1848
0x1018967f build_new_op_1
        ../../gcc/gcc/cp/call.c:5669
0x1018a58f build_new_op(unsigned int, tree_code, int, tree_node*, tree_node*,
tree_node*, tree_node**, int)
        ../../gcc/gcc/cp/call.c:5738
0x1030af83 build_x_binary_op(unsigned int, tree_code, tree_node*, tree_code,
tree_node*, tree_code, tree_node**, int)
        ../../gcc/gcc/cp/typeck.c:3811
0x10218eef tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
        ../../gcc/gcc/cp/pt.c:14776
0x101f667b tsubst_expr
        ../../gcc/gcc/cp/pt.c:14398
0x1020b22f tsubst_template_arg
        ../../gcc/gcc/cp/pt.c:9684
0x10204cbb tsubst_template_args
        ../../gcc/gcc/cp/pt.c:10246
0x1020e423 tsubst_aggr_type
        ../../gcc/gcc/cp/pt.c:10443
0x1020826b tsubst(tree_node*, tree_node*, int, tree_node*)
        ../../gcc/gcc/cp/pt.c:12412
0x10298287 dump_template_bindings
        ../../gcc/gcc/cp/error.c:353
0x10298287 dump_substitution
        ../../gcc/gcc/cp/error.c:1432
0x102a911b decl_to_string
        ../../gcc/gcc/cp/error.c:2894
0x102a911b cp_printer
        ../../gcc/gcc/cp/error.c:3475
0x111a3393 pp_format(pretty_printer*, text_info*)
        ../../gcc/gcc/pretty-print.c:613
0x1119fa13 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
        ../../gcc/gcc/diagnostic.c:916
0x111a051f error(char const*, ...)
        ../../gcc/gcc/diagnostic.c:1187
0x1016d07f enforce_access(tree_node*, tree_node*, tree_node*, int)
        ../../gcc/gcc/cp/call.c:6049
0x10365b03 perform_or_defer_access_check(tree_node*, tree_node*, tree_node*,
int)
        ../../gcc/gcc/cp/semantics.c:343
0x10173bcf build_over_call
        ../../gcc/gcc/cp/call.c:7139
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