RFR: 8199685: Access arraycopy build failure with GCC 7.3.1

[Per Liden]

Looks good!

/Per

On 03/15/2018 02:06 PM, Erik Österlund wrote:
> Hi,
> 
> Newer compilers are not happy with arraycopy since recent changes made 
> RawAccessBarrier accept 5 arguments instead of 3, and there was an 
> unused path in Access for HeapWord* arraycopy, that was not expanded, 
> that still tried to call an internal arraycopy function with 3 arguments.
> 
> The problematic unexpanded overload in RawAccessBarrier for HeapWord* 
> addresses has been removed. Instead, the HeapWord logic for performing 
> Raw oop arraycopy when it is not known whether compressed oops is used 
> or not has been moved to an earlier stage (reduce_types) to better 
> reflect how this logic is consistently handled for the other accessors 
> with the same HeapWord* logic, to make the code more symmetric.
> 
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8199685
> 
> Webrev:
> http://cr.openjdk.java.net/~eosterlund/8199685/webrev.00/
> 
> Thanks,
> /Erik