RFR: 8301036: RISC-V: Factor out functions baseOffset & baseOffset32 from MacroAssembler [v3]

[Feilong Jiang]

On Fri, 27 Jan 2023 02:38:59 GMT, Fei Yang <fyang at openjdk.org> wrote:

>> On RISC-V, functions baseOffset & baseOffset32 from MacroAssembler receive an Address in base_plus_offset mode. These two functions check the range of the offset, add it and base and put the result in a destination register. This duplicates function MacroAssembler::la in functionality. We could refactor this part moving the logic of Address legitimization into MacroAssembler::la and use this function instead.
>> 
>> Testing:
>>   - [x] Bootcycle (release & fastdebug)
>>   - [x] Tier1-4 (release)
>>   - [x] Benchmarks: SPECjbb2015 (release)
>
> Fei Yang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
> 
>  - Fix
>  - Merge branch 'master' into JDK-8301036
>  - Comment
>  - Merge branch 'master' into JDK-8301036
>  - 8301036: RISC-V: Factor out functions baseOffset & baseOffset32 from MacroAssembler

Marked as reviewed by fjiang (Author).

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PR: https://git.openjdk.org/jdk/pull/12177