http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56997
--- Comment #8 from Sandra Loosemore <sandra at codesourcery dot com> --- Thanks for giving it a try. Do you think that in a case such as this where a single access of the appropriate size cannot be generated due to the struct having unaligned fields we should generate the same code as with -fno-strict-volatile-bitfields, or something else? I agree the behavior of my current patch is problematical here, but we need to decide what this case is supposed to do before I can figure out how to fix the code.
