https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90559
--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> --- This was fixed in upstream dmd, I'll backport the patch for 9.2.
ibuclaw at gdcproject dot org Tue, 21 May 2019 12:03:35 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90559
--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> --- This was fixed in upstream dmd, I'll backport the patch for 9.2.