On 16/11/11 08:51, Doug Kwan wrote: > This patch backports the upstream fix in r171347 for a problem caused by > change in volatile bitfield access. This is tested by building the > x86 toolchain with tests and checking that volatile bitfield access worked > on ARM. This is a backport for 4.6 only. > > 2011-11-16 Doug Kwan <dougk...@google.com> > > Backport r171347 from trunk. > > 2011-03-23 Julian Brown <jul...@codesourcery.com> > > * expr.c (expand_expr_real_1): Only use BLKmode for volatile > accesses which are not naturally aligned. > So Joey Ye posted the following patch, which I think is needed to fix a regression that that patch introduces.
http://gcc.gnu.org/ml/gcc-patches/2011-11/msg01390.html However, it's not been reviewed yet :-( R.