RFR: 8282541: AArch64: Auto-vectorize Math.round API [v2]

[Andrew Haley]

On Wed, 13 Apr 2022 06:44:25 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

> Remove `n->as_Vector()->length() == $5` ? I think there is no need to limit vector length for SVE, i.e. for all SVE vector lengths, we should generate the same code. For example, you have limited the size to 8F below, which is 256 bits but there's no rule for other bits (512) of vector then.

Ah yes, it should be `>= 256`

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PR: https://git.openjdk.java.net/jdk/pull/8204