https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109468
Bug ID: 109468 Summary: assign to default with three way comparison Product: gcc Version: 12.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: stevenxia990430 at gmail dot com Target Milestone: --- The following program reports an internal compiler error: Segmentation fault To quickly reproduce: https://gcc.godbolt.org/z/M5oPs7eor ``` #include <iostream> enum class Color { Red, Green, Blue }; auto operator<=>(Color lhs, Color rhs) = default; int main() { return 0; } ``` It seems that assigning to default causes the issue as changing the assignment to 0 removes the internal compiler error.