[Bug middle-end/23623] volatile keyword changes bitfield access size from 32bit to 8bit

[sandra at codesourcery dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23623

--- Comment #16 from Sandra Loosemore <sandra at codesourcery dot com> ---
Patch that fixes regression posted here:

http://gcc.gnu.org/ml/gcc-patches/2013-06/msg00750.html