[jdk11u-dev] RFR: 8248238: Implementation: JEP 388: Windows AArch64 Support [v8]

[Andrew Haley]

On Wed, 3 Nov 2021 09:41:33 GMT, Bernhard Urban-Forster <burban at openjdk.org> wrote:

>> src/hotspot/cpu/aarch64/aarch64.ad line 5436:
>> 
>>> 5434:   // ARM instructions are of fixed length
>>> 5435:   fixed_size_instructions;        // Fixed size instructions TODO does
>>> 5436:   max_instructions_per_bundle = 4;   // A53 = 2, A57 = 4
>> 
>> This looks very odd. What has it got to do with the Windows port?
>
> I don't recall the details, but it was part of the JEP in tip: https://github.com/openjdk/jdk/pull/212/files#diff-018aa61d1a7aafcf70a535fcd40a318a4bd6511fd40ac39ce4be90cc52216749R6297
> 
> @mo-beck do you remember the motivation behind this change?

Please take it out, then. Whatever the reason might have been, we don't need it here.

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/301