[Bug c/64655] Vectorizer is always using load aligned instructions with objects with the "aligned" attribute

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Sun Jan 18 17:39:00 GMT 2015


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64655

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That is a user error.  malloc doesn't guarantee bigger alignment than alignment
of basic C types.  If you need to allocate heap memory with bigger alignments,
you need to use different allocation functions, like posix_memalign, memalign,
aligned_alloc, valloc, pvalloc or mmap.



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