https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104184
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> --- And the stack trace for comment #1 Internal compiler error: Error reporting routines re-entered. 0xff6b0d tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:16068 0xff5f6d tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:16055 0x100494e tsubst_template_args(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:13423 0xff635e tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:15461 0xff5f6d tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:16055 0x100494e tsubst_template_args(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:13423 0xff635e tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:15461 0x1005a77 tsubst_decl ../../src/gcc/cp/pt.cc:14815 0x101d842 instantiate_class_template_1 ../../src/gcc/cp/pt.cc:12076 0x101ec31 instantiate_class_template(tree_node*) ../../src/gcc/cp/pt.cc:12311 0x10714d8 complete_type(tree_node*) ../../src/gcc/cp/typeck.cc:143 0x107163d complete_type_or_maybe_complain(tree_node*, tree_node*, int) ../../src/gcc/cp/typeck.cc:156 0xff73d0 tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:16081 0x100494e tsubst_template_args(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:13423 0xff635e tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.cc:15461 0xee6e31 dump_template_bindings ../../src/gcc/cp/error.cc:486 0xee0619 dump_function_decl ../../src/gcc/cp/error.cc:1805 0xee8602 decl_to_string ../../src/gcc/cp/error.cc:3225 0xee8602 cp_printer ../../src/gcc/cp/error.cc:4396 0x281b82f pp_format(pretty_printer*, text_info*) ../../src/gcc/pretty-print.cc:1475