RFR: 8282392: [zero] Build broken on AArch64 [v2]

[Andrew Haley]

On Mon, 28 Feb 2022 16:16:12 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I think it is confusing to have `AARCH64_PORT_ONLY` defines, to be honest. In the similar cases for X86, we just additionally protect these blocks with !ZERO. Something like:

That's what we looked at and it was more of a mess, IMO. In the end it's a judgment call which to have, and I've seen this kind of mistake, where a particular port is confused with a particular CPU, enough times that I think this is OK; YMMV.

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PR: https://git.openjdk.java.net/jdk/pull/7633