[jdk16] RFR: 8260585: AArch64: Wrong code generated for shifting right and accumulating four unsigned short integers

[Vladimir Kozlov]

On Thu, 28 Jan 2021 13:01:07 GMT, Dong Bo <dongbo at openjdk.org> wrote:

> This is a typo introduced by JDK-8255949.
> Compiler will generate `ushr` for shifting right and accumulating four short integers.
> It produces wrong results for specific case. The instruction should be `usra`.

Someone familiar with Aarch64 assembler have to review this before it is approved for JDK 16.

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PR: https://git.openjdk.java.net/jdk16/pull/136