[Bug rtl-optimization/56434] document that __attribute__((__malloc__)) assumes returned pointer has BIGGEST_ALIGNMENT

[chip at pobox dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56434

--- Comment #7 from Chip Salzenberg <chip at pobox dot com> 2013-03-21 00:31:40 UTC ---
So ... is there still a question of the Right Thing here?  It seems that fixing
MALLOC_ABI_ALIGNMENT for the world, and ensuring that BIGGEST_ALIGNMENT never
affects the ABI, are the actions to take.  If this were done soon we could even
see it fixed for 4.8.0.  Help?