RFR: 8357079: Fix Windows AArch64 DevKit Creation

[Magnus Ihse Bursie]

On Mon, 16 Jun 2025 17:29:04 GMT, Luigi Montoya <duke at openjdk.org> wrote:

>> I find this confusing, but that's probably since I don't understand what Microsoft is shipping and where.
>> 
>> There are 4 relevant compilers:
>> 1) A compiler that runs on x64 and generates x64 code (x64 native compilation)
>> 2) A compiler that runs on x64 and generates aarch64 code (aarch64 cross-compilation on x64)
>> 3) A compiler that runs on aarch64 and generates aarch64 code (aarch64 native compilation)
>> 4) A compiler that runs on aarch64 and generates x64 code (x64 cross-compilation on aarch64)
>> 
>> For a devkit targeting x64, 1) and 2) should be included. For a devkit targeting aarch64, 3) (and ideally 4) as well) should be included. 
>> 
>> Are you saying that if you download VS on aarch64, you will get all four compilers installed?
>
> Yes, if I download VS on aarch64 I get the four compilers installed.

Is this the case when downloading VS on x64 as well, that you get a binary that can only be run on aarch64 bundled too? Or is the x64 installation just a subset of the aarch64 installation?

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PR Review Comment: https://git.openjdk.org/jdk/pull/25259#discussion_r2152384048