https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90490
Bug ID: 90490 Summary: ICE on noexcept with decltype expression Product: gcc Version: 9.1.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dacamara.cameron at gmail dot com Target Milestone: --- The following code causes ICE in 9.1 and above: template <typename> struct S { void g() noexcept(decltype(int{ }) { }) { } }; This is a regression as gcc families below 9.1 can compile this.