[jdk18] RFR: 8278948: compiler/vectorapi/reshape/TestVectorCastAVX1.java crashes in assembler

[Vladimir Kozlov]

On Wed, 22 Dec 2021 18:26:47 GMT, Quan Anh Mai <duke at openjdk.java.net> wrote:

>> Thank you for explaining. These tests are not present in JDK18 and that confused me. I suggest to add new simple regression test with your changes for JDK 18 so we can verify the fix. And file a separate RFE for JDK 19 to uncomment lines in TestCastMethods.java when the fix is auto-pushed into JDK 19. 
>> 
>> And what about commented line 42 `makePair(BSPEC64, DSPEC256)1` ?
>
> Hi @vnkozlov , I have added tests for this regression.
> The cast from byte to double also suffers this miscalculation, it is also mistakenly rejected from intrinsification before and I also fix it here.
> Thank you very much.

@merykitty please, merge and update copyright year to 2022 in changed files.

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PR: https://git.openjdk.java.net/jdk18/pull/46