Comment 8 for bug 910363

(In reply to comment #3)
> Where 4.6 says:
>
> Candidate (2069): this
> ! Disqualifying this - Encountered a bit-field access.
>
> which hints at what needs backporting.
>
> Martin?

Right, this seems to be PR 45644, for some reason I did not backport
the fix to 4.5. It should be fixed by committing
http://gcc.gnu.org/viewcvs?view=revision&revision=164313
I'll do the backport and test it today.