RFR: 8257436: [aarch64] Regressions in ArrayCopyUnalignedDst.testByte/testChar for 65-78 bytes when UseSIMDForMemoryOps is on

Wed Dec 2 11:14:59 UTC 2020

On Wed, 2 Dec 2020 10:56:39 GMT, Andrew Haley <aph at openjdk.org> wrote:

> > @theRealAph could please check if it causes any issues on ThunderX 2?
> 
> Is there some script you use that generates the comparison? Otherwise it'll take some time.

Unfortunately, no. I have scripts that do runs. Then I pull all results in Excel.
BTW, I attached data comparing SIMD_OFF vs SIMD_ON(patch). JDK-8257436 has data showing regressions with SIMD three ldpq instructions. I'll attach data comparing SIMD_no_fix vs SIMD_fix later.

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PR: https://git.openjdk.java.net/jdk/pull/1558