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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/101764] New: ICE for constexpr if within fold expression within lambda expression within a template Date: Tue, 03 Aug 2021 18:57:46 +0000 [thread overview] Message-ID: <bug-101764-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101764 Bug ID: 101764 Summary: ICE for constexpr if within fold expression within lambda expression within a template Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: rejects-valid Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: johelegp at gmail dot com CC: johelegp at gmail dot com Target Milestone: --- See https://godbolt.org/z/o944oWafx. ```C++ void f(auto i) { ([]<class... T>(T...) { return (..., [] { if constexpr (T{0}) ; }()); }(i)); } void g() { f(0); } ``` ``` <source>: In instantiation of 'f<int>(int)::<lambda(T ...)> [with T = {int}]': <source>:7:4: required from 'void f(auto:1) [with auto:1 = int]' <source>:9:13: required from here <source>:6:8: internal compiler error: in tsubst_pack_expansion, at cp/pt.c:13102 6 | }()); | ^ 0x1dadf09 internal_error(char const*, ...) ???:0 0x6e5511 fancy_abort(char const*, int, char const*) ???:0 0x962157 tsubst_pack_expansion(tree_node*, tree_node*, int, tree_node*) ???:0 0x94de47 instantiate_decl(tree_node*, bool, bool) ???:0 0x7f5dbe maybe_instantiate_decl(tree_node*) ???:0 0x7f7520 mark_used(tree_node*, int) ???:0 0x710ad5 build_op_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int) ???:0 0x9b4935 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool, bool, int) ???:0 0x94de47 instantiate_decl(tree_node*, bool, bool) ???:0 0x99020b instantiate_pending_templates(int) ???:0 0x7fb2f9 c_parse_final_cleanups() ???:0 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. Compiler returned: 1 ```
next reply other threads:[~2021-08-03 18:57 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-03 18:57 johelegp at gmail dot com [this message] 2021-08-13 19:39 ` [Bug c++/101764] " pinskia at gcc dot gnu.org 2021-08-20 13:50 ` ppalka at gcc dot gnu.org 2021-09-13 14:31 ` cvs-commit at gcc dot gnu.org 2021-09-13 14:59 ` ppalka at gcc dot gnu.org 2021-10-03 1:26 ` ppalka at gcc dot gnu.org 2021-11-02 19:56 ` ppalka at gcc dot gnu.org 2022-10-18 23:26 ` cvs-commit at gcc dot gnu.org
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