[RFC v2 1/7] atomics: Add test for atomic operations with _relaxed variants

[Will Deacon]

On Wed, Sep 16, 2015 at 04:49:29PM +0100, Boqun Feng wrote:
> Some atomic operations now have _{relaxed, acquire, release} variants,
> this patch then adds some trivial tests for two purpose:
> 
> 1.	test the behavior of these new operations in single-CPU
> 	environment.
> 2.	make their code generated before we actually use them somewhere,
> 	so that we can examine their assembly code.
> 
> Signed-off-by: Boqun Feng <boqun.feng at gmail.com>
> ---
>  lib/atomic64_test.c | 91 ++++++++++++++++++++++++++++++++++-------------------
>  1 file changed, 59 insertions(+), 32 deletions(-)

FWIW: this was useful to me whilst developing the arm64 relaxed atomic
implementation. Could you extend it to include the recently queued inc/dec
variants too?

Will