RFR: JDK-8217909: Make unused r12 register (without compressed oops) available to regalloc in C2

[Andrew Dinn]

On 19/02/2019 12:14, Roman Kennke wrote:
> And here comes the 'final' version:
> 
> Incremental (vs. -02):
> http://cr.openjdk.java.net/~rkennke/JDK-8217909/webrev.03.diff/
> Full webrev:
> http://cr.openjdk.java.net/~rkennke/JDK-8217909/webrev.03/
> 
> Reviews? Opinions?
Bravo! Looks good to me.

I think we should probably do the same to allow us to return either fp
or r27 or both to the allocator on AArch64 (as a follow-up patch).

regards,


Andrew Dinn
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