RFR: 8296190: TestMD5Intrinsics and TestMD5MultiBlockIntrinsics don't test the intrinsics [v2]

Thu Nov 3 00:33:28 UTC 2022

On Thu, 3 Nov 2022 00:19:03 GMT, Yi-Fan Tsai <duke at openjdk.org> wrote:

>> Increase WARMUP_ITERATIONS to get MD5 hash from the intrinsic.
>> 
>> Both TestMD5Intrinsics and TestMD5MultiBlockIntrinsics are run with options "-XX:CompileThreshold=500 -XX:Tier4InvocationThreshold=500", so the current value is too low for the intrinsic to be executed.
>
> Yi-Fan Tsai has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Set WARMUP_ITERATIONS based on Tier4InvocationThreshold

The verifier detects the intrinsic compiled/inlined somewhere, but it doesn't get executed. In other words, the verifier alone didn't guarantee the intrinsic tested.

WARMUP_ITERATIONS is now set strictly larger than Tier4InvocationThreshold.

Both TestMD5Intrinsics and TestMD5MultiBlockIntrinsics are run with `-Xbatch`.

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PR: https://git.openjdk.org/jdk/pull/10954