RFR: 8279508: Auto-vectorize Math.round API [v17]

[Jatin Bhateja]

On Mon, 14 Mar 2022 10:35:58 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8279508: Windows build failure fix.
>
> `compiler/c2/cr6340864/TestFloatVect.java` and `TestDoubleVect.java` fail on Windows:
> 
> 
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000001971b940123, pid=56524, tid=57368
> #
> # JRE version: Java(TM) SE Runtime Environment (19.0) (fastdebug build 19-internal-2022-03-14-0834080.tobias.hartmann.jdk2)
> # Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-internal-2022-03-14-0834080.tobias.hartmann.jdk2, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, windows-amd64)
> # Problematic frame:
> # J 205 c2 compiler.c2.cr6340864.TestFloatVect.test_round([I[F)V (24 bytes) @ 0x000001971b940123 [0x000001971b93ffe0+0x0000000000000143]

Hi @TobiHartmann , Can you kindly regress latest changes through your test infrastructure 
Hi @theRealAph , Your suggestions incorporated.

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PR: https://git.openjdk.java.net/jdk/pull/7094