[Bug middle-end/16660] attribute((aligned)) doesn't work for variables on the stack for greater than required alignement

[lessen42+gcc at gmail dot com]

------- Comment #18 from lessen42+gcc at gmail dot com  2009-08-20 08:49 -------
This still doesn't work on ARM either (tested with 4.4.0). The EABI only
mandates the stack be 8 byte aligned, and gcc silently clips any alignment
request above 8 bytes to 8 (so even if the stack were 16-byte aligned by
accident the variables still wouldn't be.)

Even a simple sp -= sp & (align-1) for every function with variables needing
more alignment would be faster than unaligned NEON loads/stores.


-- 

lessen42+gcc at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lessen42+gcc at gmail dot
                   |                            |com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16660