[Bug c/49923] __attirubte__((packed)) on ARM is sometimes dropped

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49923

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-02 13:11:40 UTC ---
It's easy - misaligned accesses on strict-align targets are a PITA.  IPA-SRA
needs similar adjustments as scalar SRA to keep memory references in
the component-ref style form which is the only one that the expander "properly"
handles.