------- Comment #3 from pinskia at gcc dot gnu dot org 2010-09-10 15:46 ------- >For volatile fields we should use accesses of the appropriate width.
The PowerPC ABI has specific rules for accessing volatile bitfields and IIRC it says they should be doing the largest available (up to the register size) size. This is different from the ARM ABI which says the opposite. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45637
