https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52279
--- Comment #5 from markeggleston at gcc dot gnu.org --- (In reply to markeggleston from comment #4) > Regarding comment 2. > > Using -fallow-invalid-boz results in an ICE. I'll create a new PR. Not true, tried it on the wrong file and jumped to the wrong conclusion.