RFR (XS) 8230118: 32-bit build failures after JDK-8227054

[Kim Barrett]

> On Aug 26, 2019, at 3:43 AM, Aleksey Shipilev <shade at redhat.com> wrote:
> 
> Bug:
>  https://bugs.openjdk.java.net/browse/JDK-8230118
> 
> I believe we should just use pointer_delta:
>  http://cr.openjdk.java.net/~shade/8230118/webrev.01/
> 
> Testing: build, tier1 {x86_32, x86_64}
> 
> -- 
> Thanks,
> -Aleksey

Looks good.

I wonder why this doesn’t show up on other platforms?  I just verified that -Wsign-compare
is used when building that file on linux-x64; no idea why that expression isn’t tripping it there.