https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69560
--- Comment #19 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to H.J. Lu from comment #18) > (In reply to Jason Merrill from comment #16) > > (In reply to Andreas Schwab from comment #15) > > > Because the ABI says so. > > > > Which ABI? In https://www.uclibc.org/docs/psABI-i386.pdf I see > > > > long long: sizeof 8, alignment 4. > > > > That GCC chooses to give stronger alignment to long long variables isn't > > part of the ABI, and shouldn't affect the value of alignof. > > FYI, x86 psABIs are at > > https://github.com/hjl-tools/x86-psABI/wiki/X86-psABI And those also say that double and long long have alignment 4.
