RFR: 8319690: [AArch64] C2 compilation hits offset_ok_for_immed: assert "c2 compiler bug" [v4]

[Fei Gao]

On Wed, 3 Jul 2024 15:47:06 GMT, Andrew Dinn <adinn at openjdk.org> wrote:

> > We can still see the extra register copy. So, I guess it is not caused by this PR and it does exist before?
> 
> If so then might it be better to relocate Andrew's patch to a separate issue? We may want to backport it independent from this change.

Thanks for your review @adinn . That sounds quite worthwhile. I'm afraid we can't relocate the fix directly, which depends on part of my cleanup in this PR. I'll try to withdraw the common part to make the separate fix simple and clean. Thanks.

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PR Comment: https://git.openjdk.org/jdk/pull/16991#issuecomment-2209106745