RFR: 8186166: Generalize Atomic::cmpxchg with templates

[John Paul Adrian Glaubitz]

On 08/16/2017 08:03 AM, Kim Barrett wrote:
> New webrevs:
> full: http://cr.openjdk.java.net/~kbarrett/8186166/hotspot.01/
> incr: http://cr.openjdk.java.net/~kbarrett/8186166/hotspot.01.inc/

This fails to build on linux-sparc:

/var/lib/buildd/openjdk/hs/hotspot/src/os_cpu/linux_sparc/vm/atomic_linux_sparc.hpp:130:10: error: template-id ‘operator()<>’ for ‘T Atomic::PlatformCmpxchg<4>::operator()(T, volatile T*, T, cmpxchg_memory_order)’ does not match any template declaration
  inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value,
           ^~~~~~

Full log in [1]. Going to test linux-zero next.

Adrian

> [1] https://people.debian.org/~glaubitz/linux-sparc-build.log

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