[Bug c/47409] volatile struct member bug

[joseph at codesourcery dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47409

--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-01-25 00:00:37 UTC ---
I think we should respect volatile on fields, and not use memcpy/memmove 
for assignment of volatile structs or structs with volatile fields (at 
least not for the parts with those fields; it's probably OK, but not 
worthwhile, for the non-volatile bits of the structs).