https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108659
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Wilco from comment #5) > To me a far worse issue is that this difference for 128-bit atomics means > that LLVM and GCC are binary incompatible. AFAIK isn't an option to make > them compatible either (on AArch64 GCC13 will use a compatible sequence only > if LSE2 is available). Right and that would mean LLVM is broken for valid C code. And breaks the binary compatibility with GCC rather than the other way around. This is not the first time LLVM has chosen to break things with respect to binary compatibility with GCC (x86_64 argument passing for an example).
