RFR: 8366777: Build fails unknown pseudo-op with old AS on linux-aarch64 [v9]

[SendaoYan]

On Wed, 10 Sep 2025 14:02:05 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> SendaoYan has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Include the prefix argument when calling FLAGS_COMPILER_CHECK_ARGUMENTS
>
> One could also argue that the SVE CFLAGS aren't ever relevant to the build compiler and should be moved out of `FLAGS_SETUP_CFLAGS_CPU_DEP`, and only be performed for the target compiler, which would make the whole thing a lot simpler.

@erikj79 @magicus Thanks for the patient reviews and suggestions.

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PR Comment: https://git.openjdk.org/jdk/pull/27073#issuecomment-3302542864