https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56726
Florian Weimer <fweimer at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fweimer at redhat dot com --- Comment #9 from Florian Weimer <fweimer at redhat dot com> --- On x86-64, Both jemalloc and tcmalloc return 8 byte aligned pointers for sizes of 8 and less. It's not true that malloc guarantuees 16-byte alignment there. You cannot look at glibc malloc implementation details and infer ABI properties from that.