https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68282
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- >Note I think the -4 is incorrect even because I think the upper 24bits of eax >is undefined when comining into the function. Oh yes clang/LLVM not following the x86_64 ABI correctly for arguments; there is a few bugs about that in both GCC and LLVM bug database and there was a bug in the ABI bug database which was closed as NOT a bug and confirmed GCC was following the ABI :)
