https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77691
--- Comment #12 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Wed, 21 Mar 2018, ro at CeBiTec dot Uni-Bielefeld.DE wrote: > Joseph, any suggestions? You mentioned that older versions of glibc > didn't provide 16-byte alignment in i386 malloc; maybe there are other > systems with the same issue that could equally benefit from some fix? The fix in glibc was to increase malloc alignment for i386. This is an area where properly supporting a feature (_Float128 and _Decimal128, both of which are 16-byte aligned on i386) requires cooperation between the compiler and library - in this case, even without other library support for those types, users can still legitimately expect memory from malloc to be suitably aligned for them, and for max_align_t to have suitable alignment for them.
