https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83686
Bug ID: 83686 Summary: [8 Regression] ICE (segfault) in determine_visibility Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: doko at gcc dot gnu.org Target Milestone: --- seen with r256068 on x86_64-linux-gnu, extracted from building akonadiconsole: $ cat monitorsmodel.ii # 8 "" 3 class a { b(const &) const; int f; }; template <typename c> d(c) { [] { enum {}; }; } a::b(const &) const { auto e = f; d(e); } $ g++ -std=gnu++11 -c -O0 monitorsmodel.ii : In instantiation of 'int d(c) [with c = int]': :17:6: required from here :13:13: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. Program received signal SIGSEGV, Segmentation fault. 0x00000000007194d8 in determine_visibility(tree_node*) () (gdb) bt #0 0x00000000007194d8 in determine_visibility(tree_node*) () #1 0x00000000007ace3e in lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*, int, int) () #2 0x00000000005962d2 in ?? () #3 0x00000000007a4c9c in tsubst(tree_node*, tree_node*, int, tree_node*) () #4 0x00000000007b41bf in ?? () #5 0x00000000007a4fc0 in tsubst(tree_node*, tree_node*, int, tree_node*) () #6 0x000000000079f9c3 in ?? () #7 0x000000000079f1e6 in ?? () #8 0x000000000079f2fc in ?? () #9 0x000000000079f2fc in ?? () #10 0x00000000007a0fc3 in tsubst_lambda_expr(tree_node*, tree_node*, int, tree_node*) () #11 0x00000000007a2472 in ?? () #12 0x000000000079f361 in ?? () #13 0x000000000079ed96 in ?? () #14 0x000000000079f1e6 in ?? () #15 0x000000000079f2fc in ?? () #16 0x000000000079d551 in instantiate_decl(tree_node*, bool, bool) () #17 0x00000000007b76ec in instantiate_pending_templates(int) () #18 0x000000000071cc2c in c_parse_final_cleanups() () #19 0x0000000000be025f in ?? () #20 0x00000000006b2830 in toplev::main(int, char**) () #21 0x00000000006b4b0b in main ()