RFR(S) 8075093: Enable UseFPUForSpilling support on SPARC

Dean Long dean.long at oracle.com
Wed Sep 2 23:18:47 UTC 2015

Looks fine.  Was there any measurable performance improvement?


On 9/2/2015 12:51 PM, Vladimir Kozlov wrote:
> https://bugs.openjdk.java.net/browse/JDK-8075093
> http://cr.openjdk.java.net/~kvn/8075093/webrev
> SPARC S3 core and beyond have single-cycle MOV instructions (MOVdTOx, 
> MOVxTOd) for FP-to-GP and GP-to-FP register moves. These when used 
> under UseFPUForSpilling can help improve performance.
> Contributed-by: Shrinivas Joshi
> I reviewed changes.

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