https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102123
Bug ID: 102123 Summary: Internal Compiler Error occurs during template deduction in use with templates as template parameters Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: friedkeenan at protonmail dot com Target Milestone: --- Minimal example: https://godbolt.org/z/P86MY1ccz Compiles fine with clang. Compiles with gcc if you specify `Test<int>`, though the deduction guide should make them equivalent. Possibly related to Bug 93425