Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

quoted

Possibly these were too trivial to expose any potential problems that 
you
may have been referring to, so would be helpful if you could write a 
more
concrete example / sample code.

The trick is to have a sufficiently complicated expression to force
the compiler to run out of registers.

You can use -ffixed-XXX to keep the testcase simple.


Segher