[Bug c/83108] Unaligned 128bit dereference causes segfault with -O2 on x86-64

trippels at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Nov 22 15:27:00 GMT 2017


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83108

Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |trippels at gcc dot gnu.org
         Resolution|---                         |INVALID

--- Comment #2 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
unsigned __int128 always needs 16 byte alignement, otherwise you are invoking
undefined behavior.


More information about the Gcc-bugs mailing list