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.
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