https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116961
--- Comment #1 from Sam James <sjames at gcc dot gnu.org> --- https://github.com/dlang/dmd/commit/0b677d90ee8703a1aad7adb6c7f7f7c892e3cc78 is the only big change I can spot to that, but I've no idea