On Wed, 1 Feb 2012, Linus Torvalds wrote: > Just out of morbid curiosity, what happens if you have totally > *separate* variables that just happen to link together? IOW, something > like > > static struct { unsigned bit:1; } onebit; > static volatile int var; > > and they just *happen* to link next to each other (because they were > declared next to each other) in the same 8-byte aligned block?
Just to make you run away screaming ... http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48124 where exactly such situation happens ... Richard.