RFR [12] 8217467 (XS): Access barriers are missing in C2 intrinsic for Base64

Aleksey Shipilev shade at redhat.com
Tue Jan 22 10:28:45 UTC 2019

(correct title)

On 1/22/19 11:27 AM, Aleksey Shipilev wrote:
> Bug:
>   https://bugs.openjdk.java.net/browse/JDK-8217467
> Fix:
>   http://cr.openjdk.java.net/~shade/8217467/webrev.01/
> This is found and verified by Shenandoah CTW tests that verifies barrier placement. Base64 intrinsic
> is new, and only enabled on modern hardware (I think you need AVX512). I'd like to push this fix to
> jdk12.
> Testing: Shenandoah CTW tests, hotspot tier1 (includes compiler/intrinsics/base64), jdk-submit12
> (running)
> Thanks,
> -Aleksey

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