https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111828
--- Comment #5 from Peter Bergner <bergner at gcc dot gnu.org> --- (In reply to Jan Wassenberg from comment #4) > I understand the slippery slope concern. But the empty asm string is a > special case, we and others use it (with +r output and memory clobber) to > prevent optimizing variables out e.g. during tests. I agree the empty string is a special case and I'm totally fine with the patch Ke Wen committed/backported to fix your problem. I'm just against going further than that and actually trying to parse the contents of the inline asm string to determine semantically what it contains.
