RFR: JDK-8268461: ARM32: vector intrinsics reaches ShouldNotReachHere

[Jie Fu]

On Wed, 9 Jun 2021 14:10:10 GMT, Christoph Göttschkes <cgo at openjdk.org> wrote:

> This fixes C2 vector intrinsics for 32-bit ARM.
> Since the problem exists in mainline, I guess it should be fixed here first and will later be merged into the panama repository.

LGTM

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Marked as reviewed by jiefu (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/4430