RFR: 8020282: Generated code quality: redundant LEAs in the chained dereferences [v4]

[Manuel Hässig]

On Thu, 12 Jun 2025 12:46:44 GMT, Roberto Castañeda Lozano <rcastanedalo at openjdk.org> wrote:

>> Exactly. This is why I can get away with only checking the usages of the decode.
>
> Is this scenario exercised by any of the new tests? If not, would it be possible to construct an additional test where we verify that the peephole is not applied in this case?

This scenario looks like this: 
![image](https://github.com/user-attachments/assets/0c012810-c158-46dc-997d-6b5040c16377)

Test coming soon.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25471#discussion_r2150154593