[rtems commit] score: Avoid superfluous loads

[Sebastian Huber]

On 11/22/2012 05:00 PM, Joel Sherrill wrote:
> Is this working around poor optimization?

This works around the poor usage of volatile qualifiers.

> Should we ban increment/decrement on memory?

No, the problem is the volatile.  In the future we should remove it from 
_Thread_Dispatch_disable_level and _Thread_Dispatch_necessary.

-- 
Sebastian Huber, embedded brains GmbH

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