https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80225
jwjagersma at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Target|x86_64-w64-mingw32 |x86_64-w64-mingw32, | |i686-w64-mingw32, | |i586-pc-msdosdjgpp --- Comment #1 from jwjagersma at gmail dot com --- I should mention I also reproduced this issue on i686-w64-mingw32 and i586-pc-msdosdjgpp (where I first encountered it). Since the error occurs in a function called "print_reg", I imagine this would be reproducible on any x86/amd64 target, as the flags register doesn't have a printable name.