[PATCH] PPC atomic.h add compare_exchange_val forms

[Ulrich Drepper]

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Steve Munroe wrote:

> I can do that but is this really necessary?
> 
> Could you explain your concern and criteria for common vs slit? (is the 
> use of #ifdef __powerpc64__ that is bothersome?)

We never use #ifdef, that's the reason.  If the vast majority of the
code would be shared and only a small fraction is specific we could
perhaps make an exception.  But this isn't the case here.

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