RFR (XXS) 8037295: Add size_t versions of Atomic::add, dec, and inc

[David Holmes]

Hi David,

On 26/03/2014 6:51 PM, David Simms wrote:
> Gidday,
>
> Some folks have requested size_t type variants of Atomic add, dec and
> inc; to save on messy looking casts or using an inappropriate type.
>
> Bug/Enhancement: https://bugs.openjdk.java.net/browse/JDK-8037295
>
> Webrev: http://cr.openjdk.java.net/~dsimms/8037295/
> <http://cr.openjdk.java.net/%7Edsimms/8037295/>
>
> Have searched for existing cases, most looked like a potential change in
> type size or requiring const (still needs cast), except for
> heapRegionRemSet.hpp where size_t was clearly the intended type.
>
> Testing: hotspot jtreg tests and "quick test list".

This looks okay to me. Is there any reason not to provide xchg and 
cmpxchg size_t variants too?

Thanks,
David H.

> Cheers
> /David Simms
>
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